mercurial/revlog.py
author Gregory Szorc <gregory.szorc@gmail.com>
Wed, 21 Oct 2020 22:53:15 -0700
branchstable
changeset 45753 d1ce0ffdd3ce
parent 45735 edf4fa06df94
child 45779 8719a5b68419
permissions -rw-r--r--
automation: upload Python 3.9 Windows wheels We are producing these. We should be publishing them.
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# revlog.py - storage back-end for mercurial
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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"""Storage back-end for Mercurial.
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This provides efficient delta storage with O(1) retrieve and append
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and O(changes) merge between branches.
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"""
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from __future__ import absolute_import
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import collections
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import contextlib
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import errno
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import io
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import os
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import struct
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import zlib
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# import stuff from node for others to import from revlog
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from .node import (
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    bin,
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    hex,
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    nullhex,
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    nullid,
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    nullrev,
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    short,
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    wdirfilenodeids,
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    wdirhex,
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    wdirid,
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    wdirrev,
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)
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from .i18n import _
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from .pycompat import getattr
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from .revlogutils.constants import (
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    FLAG_GENERALDELTA,
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    FLAG_INLINE_DATA,
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    REVLOGV0,
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    REVLOGV1,
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    REVLOGV1_FLAGS,
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    REVLOGV2,
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    REVLOGV2_FLAGS,
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    REVLOG_DEFAULT_FLAGS,
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    REVLOG_DEFAULT_FORMAT,
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    REVLOG_DEFAULT_VERSION,
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)
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from .revlogutils.flagutil import (
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    REVIDX_DEFAULT_FLAGS,
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    REVIDX_ELLIPSIS,
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    REVIDX_EXTSTORED,
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    REVIDX_FLAGS_ORDER,
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    REVIDX_HASCOPIESINFO,
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    REVIDX_ISCENSORED,
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    REVIDX_RAWTEXT_CHANGING_FLAGS,
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    REVIDX_SIDEDATA,
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)
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from .thirdparty import attr
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from . import (
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    ancestor,
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    dagop,
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    error,
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    mdiff,
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    policy,
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    pycompat,
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    templatefilters,
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    util,
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)
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from .interfaces import (
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    repository,
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    util as interfaceutil,
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)
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from .revlogutils import (
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    deltas as deltautil,
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    flagutil,
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    nodemap as nodemaputil,
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    sidedata as sidedatautil,
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)
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from .utils import (
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    storageutil,
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    stringutil,
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)
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# blanked usage of all the name to prevent pyflakes constraints
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# We need these name available in the module for extensions.
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REVLOGV0
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REVLOGV1
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REVLOGV2
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FLAG_INLINE_DATA
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FLAG_GENERALDELTA
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REVLOG_DEFAULT_FLAGS
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REVLOG_DEFAULT_FORMAT
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REVLOG_DEFAULT_VERSION
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REVLOGV1_FLAGS
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REVLOGV2_FLAGS
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REVIDX_ISCENSORED
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REVIDX_ELLIPSIS
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REVIDX_SIDEDATA
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REVIDX_HASCOPIESINFO
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REVIDX_EXTSTORED
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REVIDX_DEFAULT_FLAGS
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REVIDX_FLAGS_ORDER
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REVIDX_RAWTEXT_CHANGING_FLAGS
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parsers = policy.importmod('parsers')
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rustancestor = policy.importrust('ancestor')
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rustdagop = policy.importrust('dagop')
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rustrevlog = policy.importrust('revlog')
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# Aliased for performance.
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_zlibdecompress = zlib.decompress
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# max size of revlog with inline data
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_maxinline = 131072
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_chunksize = 1048576
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# Flag processors for REVIDX_ELLIPSIS.
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def ellipsisreadprocessor(rl, text):
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    return text, False, {}
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def ellipsiswriteprocessor(rl, text, sidedata):
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    return text, False
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def ellipsisrawprocessor(rl, text):
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    return False
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ellipsisprocessor = (
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    ellipsisreadprocessor,
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    ellipsiswriteprocessor,
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    ellipsisrawprocessor,
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)
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def getoffset(q):
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    return int(q >> 16)
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def gettype(q):
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    return int(q & 0xFFFF)
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def offset_type(offset, type):
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    if (type & ~flagutil.REVIDX_KNOWN_FLAGS) != 0:
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        raise ValueError(b'unknown revlog index flags')
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    return int(int(offset) << 16 | type)
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def _verify_revision(rl, skipflags, state, node):
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    """Verify the integrity of the given revlog ``node`` while providing a hook
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    point for extensions to influence the operation."""
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    if skipflags:
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        state[b'skipread'].add(node)
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    else:
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        # Side-effect: read content and verify hash.
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        rl.revision(node)
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@attr.s(slots=True, frozen=True)
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class _revisioninfo(object):
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    """Information about a revision that allows building its fulltext
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    node:       expected hash of the revision
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    p1, p2:     parent revs of the revision
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    btext:      built text cache consisting of a one-element list
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    cachedelta: (baserev, uncompressed_delta) or None
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    flags:      flags associated to the revision storage
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    One of btext[0] or cachedelta must be set.
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    """
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    node = attr.ib()
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    p1 = attr.ib()
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    p2 = attr.ib()
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    btext = attr.ib()
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    textlen = attr.ib()
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    cachedelta = attr.ib()
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    flags = attr.ib()
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@interfaceutil.implementer(repository.irevisiondelta)
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@attr.s(slots=True)
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class revlogrevisiondelta(object):
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    node = attr.ib()
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    p1node = attr.ib()
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    p2node = attr.ib()
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    basenode = attr.ib()
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    flags = attr.ib()
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    baserevisionsize = attr.ib()
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    revision = attr.ib()
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    delta = attr.ib()
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    linknode = attr.ib(default=None)
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@interfaceutil.implementer(repository.iverifyproblem)
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@attr.s(frozen=True)
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class revlogproblem(object):
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    warning = attr.ib(default=None)
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    error = attr.ib(default=None)
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    node = attr.ib(default=None)
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# index v0:
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#  4 bytes: offset
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#  4 bytes: compressed length
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#  4 bytes: base rev
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#  4 bytes: link rev
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# 20 bytes: parent 1 nodeid
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# 20 bytes: parent 2 nodeid
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# 20 bytes: nodeid
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indexformatv0 = struct.Struct(b">4l20s20s20s")
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indexformatv0_pack = indexformatv0.pack
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indexformatv0_unpack = indexformatv0.unpack
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class revlogoldindex(list):
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    @property
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    def nodemap(self):
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        msg = b"index.nodemap is deprecated, use index.[has_node|rev|get_rev]"
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        util.nouideprecwarn(msg, b'5.3', stacklevel=2)
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        return self._nodemap
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    @util.propertycache
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    def _nodemap(self):
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        nodemap = nodemaputil.NodeMap({nullid: nullrev})
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        for r in range(0, len(self)):
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            n = self[r][7]
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            nodemap[n] = r
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        return nodemap
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    def has_node(self, node):
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        """return True if the node exist in the index"""
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        return node in self._nodemap
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    def rev(self, node):
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        """return a revision for a node
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        If the node is unknown, raise a RevlogError"""
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        return self._nodemap[node]
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    def get_rev(self, node):
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        """return a revision for a node
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        If the node is unknown, return None"""
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        return self._nodemap.get(node)
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    def append(self, tup):
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        self._nodemap[tup[7]] = len(self)
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        super(revlogoldindex, self).append(tup)
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    def __delitem__(self, i):
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        if not isinstance(i, slice) or not i.stop == -1 or i.step is not None:
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            raise ValueError(b"deleting slices only supports a:-1 with step 1")
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        for r in pycompat.xrange(i.start, len(self)):
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            del self._nodemap[self[r][7]]
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        super(revlogoldindex, self).__delitem__(i)
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    def clearcaches(self):
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        self.__dict__.pop('_nodemap', None)
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    def __getitem__(self, i):
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        if i == -1:
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            return (0, 0, 0, -1, -1, -1, -1, nullid)
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        return list.__getitem__(self, i)
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class revlogoldio(object):
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    def __init__(self):
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        self.size = indexformatv0.size
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    def parseindex(self, data, inline):
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        s = self.size
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        index = []
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        nodemap = nodemaputil.NodeMap({nullid: nullrev})
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        n = off = 0
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        l = len(data)
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        while off + s <= l:
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            cur = data[off : off + s]
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            off += s
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            e = indexformatv0_unpack(cur)
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            # transform to revlogv1 format
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            e2 = (
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                offset_type(e[0], 0),
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                e[1],
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                -1,
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                e[2],
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                e[3],
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                nodemap.get(e[4], nullrev),
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                nodemap.get(e[5], nullrev),
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                e[6],
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            )
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            index.append(e2)
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   297
            nodemap[e[6]] = n
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   298
            n += 1
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        index = revlogoldindex(index)
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        return index, None
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   303
    def packentry(self, entry, node, version, rev):
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   304
        if gettype(entry[0]):
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   305
            raise error.RevlogError(
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   306
                _(b'index entry flags need revlog version 1')
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   307
            )
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   308
        e2 = (
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   309
            getoffset(entry[0]),
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            entry[1],
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            entry[3],
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            entry[4],
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   313
            node(entry[5]),
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   314
            node(entry[6]),
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   315
            entry[7],
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   316
        )
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   317
        return indexformatv0_pack(*e2)
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   319
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   320
# index ng:
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   321
#  6 bytes: offset
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#  2 bytes: flags
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   323
#  4 bytes: compressed length
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   324
#  4 bytes: uncompressed length
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   325
#  4 bytes: base rev
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   326
#  4 bytes: link rev
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   327
#  4 bytes: parent 1 rev
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   328
#  4 bytes: parent 2 rev
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   329
# 32 bytes: nodeid
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   330
indexformatng = struct.Struct(b">Qiiiiii20s12x")
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   331
indexformatng_pack = indexformatng.pack
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versionformat = struct.Struct(b">I")
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   333
versionformat_pack = versionformat.pack
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   334
versionformat_unpack = versionformat.unpack
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   335
25410
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   336
# corresponds to uncompressed length of indexformatng (2 gigs, 4-byte
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   337
# signed integer)
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   338
_maxentrysize = 0x7FFFFFFF
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   339
25410
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   340
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   341
class revlogio(object):
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   342
    def __init__(self):
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   343
        self.size = indexformatng.size
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   344
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   345
    def parseindex(self, data, inline):
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   346
        # call the C implementation to parse the index data
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   347
        index, cache = parsers.parse_index2(data, inline)
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   348
        return index, cache
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   350
    def packentry(self, entry, node, version, rev):
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   351
        p = indexformatng_pack(*entry)
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   352
        if rev == 0:
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   353
            p = versionformat_pack(version) + p[4:]
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   354
        return p
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   355
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   356
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   357
NodemapRevlogIO = None
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   358
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diff changeset
   359
if util.safehasattr(parsers, 'parse_index_devel_nodemap'):
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   360
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diff changeset
   361
    class NodemapRevlogIO(revlogio):
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diff changeset
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        """A debug oriented IO class that return a PersistentNodeMapIndexObject
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diff changeset
   363
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diff changeset
   364
        The PersistentNodeMapIndexObject object is meant to test the persistent nodemap feature.
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diff changeset
   365
        """
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   366
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   367
        def parseindex(self, data, inline):
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   368
            index, cache = parsers.parse_index_devel_nodemap(data, inline)
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diff changeset
   369
            return index, cache
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   371
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8042856c90b6 rust-index: add a `experimental.rust.index` option to use the wrapper
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diff changeset
   372
class rustrevlogio(revlogio):
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   373
    def parseindex(self, data, inline):
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   374
        index, cache = super(rustrevlogio, self).parseindex(data, inline)
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   375
        return rustrevlog.MixedIndex(index), cache
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   378
class revlog(object):
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30974cf73435 Add some docstrings to revlog.py
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parents: 1074
diff changeset
   379
    """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   380
    the underlying revision storage object
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   381
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   382
    A revlog consists of two parts, an index and the revision data.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   383
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   384
    The index is a file with a fixed record size containing
6912
b92baef99ebf Fixed docstring typos
Martin Geisler <mg@daimi.au.dk>
parents: 6891
diff changeset
   385
    information on each revision, including its nodeid (hash), the
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   386
    nodeids of its parents, the position and offset of its data within
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   387
    the data file, and the revision it's based on. Finally, each entry
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   388
    contains a linkrev entry that can serve as a pointer to external
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   389
    data.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   390
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   391
    The revision data itself is a linear collection of data chunks.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   392
    Each chunk represents a revision and is usually represented as a
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   393
    delta against the previous chunk. To bound lookup time, runs of
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   394
    deltas are limited to about 2 times the length of the original
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   395
    version data. This makes retrieval of a version proportional to
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   396
    its size, or O(1) relative to the number of revisions.
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   397
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   398
    Both pieces of the revlog are written to in an append-only
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   399
    fashion, which means we never need to rewrite a file to insert or
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   400
    remove data, and can use some simple techniques to avoid the need
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   401
    for locking while reading.
29997
b5e5ddf48bd2 revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29830
diff changeset
   402
b5e5ddf48bd2 revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29830
diff changeset
   403
    If checkambig, indexfile is opened with checkambig=True at
b5e5ddf48bd2 revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29830
diff changeset
   404
    writing, to avoid file stat ambiguity.
34296
3c9691728237 revlog: add option to mmap revlog index
Mark Thomas <mbthomas@fb.com>
parents: 34291
diff changeset
   405
3c9691728237 revlog: add option to mmap revlog index
Mark Thomas <mbthomas@fb.com>
parents: 34291
diff changeset
   406
    If mmaplargeindex is True, and an mmapindexthreshold is set, the
3c9691728237 revlog: add option to mmap revlog index
Mark Thomas <mbthomas@fb.com>
parents: 34291
diff changeset
   407
    index will be mmapped rather than read if it is larger than the
3c9691728237 revlog: add option to mmap revlog index
Mark Thomas <mbthomas@fb.com>
parents: 34291
diff changeset
   408
    configured threshold.
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
   409
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
   410
    If censorable is True, the revlog can have censored revisions.
42462
bc4373babd04 revlog: add the option to track the expected compression upper bound
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42452
diff changeset
   411
bc4373babd04 revlog: add the option to track the expected compression upper bound
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42452
diff changeset
   412
    If `upperboundcomp` is not None, this is the expected maximal gain from
bc4373babd04 revlog: add the option to track the expected compression upper bound
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42452
diff changeset
   413
    compression for the data content.
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   414
    """
42994
3674797ae8b9 flagprocessors: move _flagserrorclass attribute on revlog & co
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42993
diff changeset
   415
3674797ae8b9 flagprocessors: move _flagserrorclass attribute on revlog & co
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42993
diff changeset
   416
    _flagserrorclass = error.RevlogError
3674797ae8b9 flagprocessors: move _flagserrorclass attribute on revlog & co
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42993
diff changeset
   417
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   418
    def __init__(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   419
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   420
        opener,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   421
        indexfile,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   422
        datafile=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   423
        checkambig=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   424
        mmaplargeindex=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   425
        censorable=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   426
        upperboundcomp=None,
44308
5962fd0d1045 nodemap: write nodemap data on disk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44073
diff changeset
   427
        persistentnodemap=False,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   428
    ):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   429
        """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   430
        create a revlog object
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   431
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   432
        opener is a function that abstracts the file opening operation
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   433
        and can be used to implement COW semantics or the like.
42462
bc4373babd04 revlog: add the option to track the expected compression upper bound
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42452
diff changeset
   434
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
   435
        """
42462
bc4373babd04 revlog: add the option to track the expected compression upper bound
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42452
diff changeset
   436
        self.upperboundcomp = upperboundcomp
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   437
        self.indexfile = indexfile
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   438
        self.datafile = datafile or (indexfile[:-2] + b".d")
44308
5962fd0d1045 nodemap: write nodemap data on disk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44073
diff changeset
   439
        self.nodemap_file = None
5962fd0d1045 nodemap: write nodemap data on disk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44073
diff changeset
   440
        if persistentnodemap:
44516
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   441
            if indexfile.endswith(b'.a'):
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   442
                pending_path = indexfile[:-4] + b".n.a"
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   443
                if opener.exists(pending_path):
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   444
                    self.nodemap_file = pending_path
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   445
                else:
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   446
                    self.nodemap_file = indexfile[:-4] + b".n"
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   447
            else:
64e2f603de9d nodemap: make sure hooks have access to an up-to-date version
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44515
diff changeset
   448
                self.nodemap_file = indexfile[:-2] + b".n"
44308
5962fd0d1045 nodemap: write nodemap data on disk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44073
diff changeset
   449
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   450
        self.opener = opener
29997
b5e5ddf48bd2 revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29830
diff changeset
   451
        #  When True, indexfile is opened with checkambig=True at writing, to
b5e5ddf48bd2 revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29830
diff changeset
   452
        #  avoid file stat ambiguity.
b5e5ddf48bd2 revlog: specify checkambig at writing to avoid file stat ambiguity
FUJIWARA Katsunori <foozy@lares.dti.ne.jp>
parents: 29830
diff changeset
   453
        self._checkambig = checkambig
41203
d0de4fdd87aa revlog: store mmaplargeindex as an instance attribute
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41202
diff changeset
   454
        self._mmaplargeindex = mmaplargeindex
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
   455
        self._censorable = censorable
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
   456
        # 3-tuple of (node, rev, text) for a raw revision.
40052
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
   457
        self._revisioncache = None
29830
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   458
        # Maps rev to chain base rev.
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   459
        self._chainbasecache = util.lrucachedict(100)
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
   460
        # 2-tuple of (offset, data) of raw data from the revlog at an offset.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   461
        self._chunkcache = (0, b'')
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
   462
        # How much data to read and cache into the raw revlog data cache.
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
   463
        self._chunkcachesize = 65536
23255
76effa770ff9 revlog: add config variable for limiting delta-chain length
Mateusz Kwapich <mitrandir@fb.com>
parents: 23254
diff changeset
   464
        self._maxchainlen = None
38736
93777d16a25d aggressivemergedeltas: rename variable internally
Boris Feld <boris.feld@octobus.net>
parents: 38718
diff changeset
   465
        self._deltabothparents = True
43525
845e5b313783 revlog: move the nodemap into the index object (for pure)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43524
diff changeset
   466
        self.index = None
44323
76a96e3a2bbb nodemap: keep track of the docket for loaded data
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44320
diff changeset
   467
        self._nodemap_docket = None
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
   468
        # Mapping of partial identifiers to full nodes.
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
   469
        self._pcache = {}
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
   470
        # Mapping of revision integer to full node.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   471
        self._compengine = b'zlib'
42043
1fac9b931d46 compression: introduce a `storage.revlog.zlib.level` configuration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41872
diff changeset
   472
        self._compengineopts = {}
33207
895ecec31c70 revlog: add an experimental option to mitigated delta issues (issue5480)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 33171
diff changeset
   473
        self._maxdeltachainspan = -1
34824
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
   474
        self._withsparseread = False
38717
aa21a9ad46ea sparse-revlog: new requirement enabled with format.sparse-revlog
Paul Morelle <paul.morelle@octobus.net>
parents: 38716
diff changeset
   475
        self._sparserevlog = False
38632
eb8504715071 sparse-read: target density of 50% instead of 25%
Paul Morelle <paul.morelle@octobus.net>
parents: 38602
diff changeset
   476
        self._srdensitythreshold = 0.50
34881
8c9b08a0c48c sparse-read: skip gaps too small to be worth splitting
Paul Morelle <paul.morelle@octobus.net>
parents: 34880
diff changeset
   477
        self._srmingapsize = 262144
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
   478
39768
7b2b42fc377a revlog: store flag processors per revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39767
diff changeset
   479
        # Make copy of flag processors so each revlog instance can support
7b2b42fc377a revlog: store flag processors per revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39767
diff changeset
   480
        # custom flags.
42729
05c80f9ef100 flagutil: move the `flagprocessors` mapping in the new module
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42728
diff changeset
   481
        self._flagprocessors = dict(flagutil.flagprocessors)
39768
7b2b42fc377a revlog: store flag processors per revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39767
diff changeset
   482
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   483
        # 2-tuple of file handles being used for active writing.
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   484
        self._writinghandles = None
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   485
41204
e3cfe0702eac revlog: inline opener options logic into _loadindex()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41203
diff changeset
   486
        self._loadindex()
e3cfe0702eac revlog: inline opener options logic into _loadindex()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41203
diff changeset
   487
e3cfe0702eac revlog: inline opener options logic into _loadindex()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41203
diff changeset
   488
    def _loadindex(self):
34296
3c9691728237 revlog: add option to mmap revlog index
Mark Thomas <mbthomas@fb.com>
parents: 34291
diff changeset
   489
        mmapindexthreshold = None
43025
3518da504303 vfs: give all vfs an options attribute by default
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43024
diff changeset
   490
        opts = self.opener.options
41200
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   491
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   492
        if b'revlogv2' in opts:
41205
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   493
            newversionflags = REVLOGV2 | FLAG_INLINE_DATA
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   494
        elif b'revlogv1' in opts:
41205
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   495
            newversionflags = REVLOGV1 | FLAG_INLINE_DATA
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   496
            if b'generaldelta' in opts:
41205
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   497
                newversionflags |= FLAG_GENERALDELTA
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   498
        elif b'revlogv0' in self.opener.options:
41303
c953c2a94d68 revlog: fix resolution of revlog version 0
Yuya Nishihara <yuya@tcha.org>
parents: 41301
diff changeset
   499
            newversionflags = REVLOGV0
41200
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   500
        else:
41205
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   501
            newversionflags = REVLOG_DEFAULT_VERSION
41200
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   502
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   503
        if b'chunkcachesize' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   504
            self._chunkcachesize = opts[b'chunkcachesize']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   505
        if b'maxchainlen' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   506
            self._maxchainlen = opts[b'maxchainlen']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   507
        if b'deltabothparents' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   508
            self._deltabothparents = opts[b'deltabothparents']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   509
        self._lazydelta = bool(opts.get(b'lazydelta', True))
41819
688fc33e105d storage: introduce a `revlog.reuse-external-delta` config
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41764
diff changeset
   510
        self._lazydeltabase = False
688fc33e105d storage: introduce a `revlog.reuse-external-delta` config
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41764
diff changeset
   511
        if self._lazydelta:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   512
            self._lazydeltabase = bool(opts.get(b'lazydeltabase', False))
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   513
        if b'compengine' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   514
            self._compengine = opts[b'compengine']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   515
        if b'zlib.level' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   516
            self._compengineopts[b'zlib.level'] = opts[b'zlib.level']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   517
        if b'zstd.level' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   518
            self._compengineopts[b'zstd.level'] = opts[b'zstd.level']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   519
        if b'maxdeltachainspan' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   520
            self._maxdeltachainspan = opts[b'maxdeltachainspan']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   521
        if self._mmaplargeindex and b'mmapindexthreshold' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   522
            mmapindexthreshold = opts[b'mmapindexthreshold']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   523
        self.hassidedata = bool(opts.get(b'side-data', False))
43037
142deb539ccf sidedata: register the flag processors if the repository allows for it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43034
diff changeset
   524
        if self.hassidedata:
142deb539ccf sidedata: register the flag processors if the repository allows for it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43034
diff changeset
   525
            self._flagprocessors[REVIDX_SIDEDATA] = sidedatautil.processors
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   526
        self._sparserevlog = bool(opts.get(b'sparse-revlog', False))
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   527
        withsparseread = bool(opts.get(b'with-sparse-read', False))
41200
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   528
        # sparse-revlog forces sparse-read
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   529
        self._withsparseread = self._sparserevlog or withsparseread
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   530
        if b'sparse-read-density-threshold' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   531
            self._srdensitythreshold = opts[b'sparse-read-density-threshold']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   532
        if b'sparse-read-min-gap-size' in opts:
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   533
            self._srmingapsize = opts[b'sparse-read-min-gap-size']
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   534
        if opts.get(b'enableellipsis'):
41200
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   535
            self._flagprocessors[REVIDX_ELLIPSIS] = ellipsisprocessor
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   536
cecf3f8bccd3 revlog: always process opener options
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41115
diff changeset
   537
        # revlog v0 doesn't have flag processors
43106
d783f945a701 py3: finish porting iteritems() to pycompat and remove source transformer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 43089
diff changeset
   538
        for flag, processor in pycompat.iteritems(
d783f945a701 py3: finish porting iteritems() to pycompat and remove source transformer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 43089
diff changeset
   539
            opts.get(b'flagprocessors', {})
d783f945a701 py3: finish porting iteritems() to pycompat and remove source transformer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 43089
diff changeset
   540
        ):
42731
5109217a9ab6 flagutil: move insertflagprocessor to the new module (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42730
diff changeset
   541
            flagutil.insertflagprocessor(flag, processor, self._flagprocessors)
40267
9d5ddf55415b revlog: allow flag processors to be applied via store options
Matt Harbison <matt_harbison@yahoo.com>
parents: 40180
diff changeset
   542
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
   543
        if self._chunkcachesize <= 0:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   544
            raise error.RevlogError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
   545
                _(b'revlog chunk cache size %r is not greater than 0')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   546
                % self._chunkcachesize
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   547
            )
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
   548
        elif self._chunkcachesize & (self._chunkcachesize - 1):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   549
            raise error.RevlogError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
   550
                _(b'revlog chunk cache size %r is not a power of 2')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   551
                % self._chunkcachesize
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   552
            )
11928
b69899dbad40 revlog: parentdelta flags for revlog index
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11759
diff changeset
   553
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   554
        indexdata = b''
14334
85c82ebc96a3 changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14333
diff changeset
   555
        self._initempty = True
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
   556
        try:
35969
1f2b8a644dd4 revlog: use context manager for index file life time in __init__
Boris Feld <boris.feld@octobus.net>
parents: 35968
diff changeset
   557
            with self._indexfp() as f:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   558
                if (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   559
                    mmapindexthreshold is not None
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   560
                    and self.opener.fstat(f).st_size >= mmapindexthreshold
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   561
                ):
41286
00b314c42094 revlog: document that mmap resources are released implicitly by GC
Yuya Nishihara <yuya@tcha.org>
parents: 41275
diff changeset
   562
                    # TODO: should .close() to release resources without
00b314c42094 revlog: document that mmap resources are released implicitly by GC
Yuya Nishihara <yuya@tcha.org>
parents: 41275
diff changeset
   563
                    # relying on Python GC
35969
1f2b8a644dd4 revlog: use context manager for index file life time in __init__
Boris Feld <boris.feld@octobus.net>
parents: 35968
diff changeset
   564
                    indexdata = util.buffer(util.mmapread(f))
1f2b8a644dd4 revlog: use context manager for index file life time in __init__
Boris Feld <boris.feld@octobus.net>
parents: 35968
diff changeset
   565
                else:
1f2b8a644dd4 revlog: use context manager for index file life time in __init__
Boris Feld <boris.feld@octobus.net>
parents: 35968
diff changeset
   566
                    indexdata = f.read()
26241
eb97d49768cc revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26118
diff changeset
   567
            if len(indexdata) > 0:
41201
6439cefaeb64 revlog: rename v to versionflags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41200
diff changeset
   568
                versionflags = versionformat_unpack(indexdata[:4])[0]
14334
85c82ebc96a3 changelog: don't use generaldelta
Sune Foldager <cryo@cyanite.org>
parents: 14333
diff changeset
   569
                self._initempty = False
41205
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   570
            else:
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   571
                versionflags = newversionflags
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25459
diff changeset
   572
        except IOError as inst:
1322
b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1232
diff changeset
   573
            if inst.errno != errno.ENOENT:
b3d44e9b3092 Make revlog constructor more discerning in its treatment of errors.
Bryan O'Sullivan <bos@serpentine.com>
parents: 1232
diff changeset
   574
                raise
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
   575
41205
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   576
            versionflags = newversionflags
3f807237dc94 revlog: use separate variables to track version flags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41204
diff changeset
   577
41201
6439cefaeb64 revlog: rename v to versionflags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41200
diff changeset
   578
        self.version = versionflags
41202
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   579
41201
6439cefaeb64 revlog: rename v to versionflags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41200
diff changeset
   580
        flags = versionflags & ~0xFFFF
6439cefaeb64 revlog: rename v to versionflags
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41200
diff changeset
   581
        fmt = versionflags & 0xFFFF
41202
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   582
32392
36d3559c69a6 revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32372
diff changeset
   583
        if fmt == REVLOGV0:
36d3559c69a6 revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32372
diff changeset
   584
            if flags:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   585
                raise error.RevlogError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
   586
                    _(b'unknown flags (%#04x) in version %d revlog %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   587
                    % (flags >> 16, fmt, self.indexfile)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   588
                )
41202
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   589
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   590
            self._inline = False
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   591
            self._generaldelta = False
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   592
32392
36d3559c69a6 revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32372
diff changeset
   593
        elif fmt == REVLOGV1:
36d3559c69a6 revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32372
diff changeset
   594
            if flags & ~REVLOGV1_FLAGS:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   595
                raise error.RevlogError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
   596
                    _(b'unknown flags (%#04x) in version %d revlog %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   597
                    % (flags >> 16, fmt, self.indexfile)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   598
                )
41202
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   599
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   600
            self._inline = versionflags & FLAG_INLINE_DATA
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   601
            self._generaldelta = versionflags & FLAG_GENERALDELTA
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   602
32697
19b9fc40cc51 revlog: skeleton support for version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32684
diff changeset
   603
        elif fmt == REVLOGV2:
19b9fc40cc51 revlog: skeleton support for version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32684
diff changeset
   604
            if flags & ~REVLOGV2_FLAGS:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   605
                raise error.RevlogError(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
   606
                    _(b'unknown flags (%#04x) in version %d revlog %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   607
                    % (flags >> 16, fmt, self.indexfile)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   608
                )
41202
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   609
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   610
            self._inline = versionflags & FLAG_INLINE_DATA
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   611
            # generaldelta implied by version 2 revlogs.
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   612
            self._generaldelta = True
e7a2cc84dbc0 revlog: always enable generaldelta on version 2 revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41201
diff changeset
   613
32392
36d3559c69a6 revlog: tweak wording and logic for flags validation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32372
diff changeset
   614
        else:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   615
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   616
                _(b'unknown version (%d) in revlog %s') % (fmt, self.indexfile)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   617
            )
41447
189e06b2d719 revlog: make sure we never use sparserevlog without general delta (issue6056)
Boris Feld <boris.feld@octobus.net>
parents: 41350
diff changeset
   618
        # sparse-revlog can't be on without general-delta (issue6056)
189e06b2d719 revlog: make sure we never use sparserevlog without general delta (issue6056)
Boris Feld <boris.feld@octobus.net>
parents: 41350
diff changeset
   619
        if not self._generaldelta:
189e06b2d719 revlog: make sure we never use sparserevlog without general delta (issue6056)
Boris Feld <boris.feld@octobus.net>
parents: 41350
diff changeset
   620
            self._sparserevlog = False
4985
e6525e459157 revlog: simplify revlog.__init__
Matt Mackall <mpm@selenic.com>
parents: 4984
diff changeset
   621
39232
0a5b20c107a6 repository: remove storedeltachains from ifilestorage
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39231
diff changeset
   622
        self._storedeltachains = True
30154
5e72129d75ed revlog: add instance variable controlling delta chain use
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30012
diff changeset
   623
44313
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   624
        devel_nodemap = (
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   625
            self.nodemap_file
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   626
            and opts.get(b'devel-force-nodemap', False)
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   627
            and NodemapRevlogIO is not None
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   628
        )
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   629
44513
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   630
        use_rust_index = False
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   631
        if rustrevlog is not None:
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   632
            if self.nodemap_file is not None:
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   633
                use_rust_index = True
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   634
            else:
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   635
                use_rust_index = self.opener.options.get(b'rust.index')
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   636
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
   637
        self._io = revlogio()
4971
3e6dae278c99 revlog: regroup parsing code
Matt Mackall <mpm@selenic.com>
parents: 4920
diff changeset
   638
        if self.version == REVLOGV0:
4972
8d0cf46e0dc6 revlog: add revlogio interface
Matt Mackall <mpm@selenic.com>
parents: 4971
diff changeset
   639
            self._io = revlogoldio()
44313
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   640
        elif devel_nodemap:
6f9e8e142cea nodemap: add a (python) index class for persistent nodemap testing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44310
diff changeset
   641
            self._io = NodemapRevlogIO()
44513
e7fff9c3cdac rust-nodemap: automatically use the rust index for persistent nodemap
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44501
diff changeset
   642
        elif use_rust_index:
44054
612225e994ff revlog: reorder a conditionnal about revlogio
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44047
diff changeset
   643
            self._io = rustrevlogio()
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   644
        try:
26241
eb97d49768cc revlog: rename generic "i" variable to "indexdata"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26118
diff changeset
   645
            d = self._io.parseindex(indexdata, self._inline)
44320
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   646
            index, _chunkcache = d
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   647
            use_nodemap = (
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   648
                not self._inline
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   649
                and self.nodemap_file is not None
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   650
                and util.safehasattr(index, 'update_nodemap_data')
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   651
            )
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   652
            if use_nodemap:
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   653
                nodemap_data = nodemaputil.persisted_data(self)
671f9479af0e nodemap: provide the on disk data to indexes who support it
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44313
diff changeset
   654
                if nodemap_data is not None:
44515
6c906eaedd0d nodemap: track the tip_node for validation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44513
diff changeset
   655
                    docket = nodemap_data[0]
44954
affe0fb42250 nodemap: fix validity checking when revlog is too short
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44516
diff changeset
   656
                    if (
affe0fb42250 nodemap: fix validity checking when revlog is too short
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44516
diff changeset
   657
                        len(d[0]) > docket.tip_rev
affe0fb42250 nodemap: fix validity checking when revlog is too short
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44516
diff changeset
   658
                        and d[0][docket.tip_rev][7] == docket.tip_node
affe0fb42250 nodemap: fix validity checking when revlog is too short
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44516
diff changeset
   659
                    ):
44515
6c906eaedd0d nodemap: track the tip_node for validation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44513
diff changeset
   660
                        # no changelog tampering
6c906eaedd0d nodemap: track the tip_node for validation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44513
diff changeset
   661
                        self._nodemap_docket = docket
6c906eaedd0d nodemap: track the tip_node for validation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44513
diff changeset
   662
                        index.update_nodemap_data(*nodemap_data)
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   663
        except (ValueError, IndexError):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   664
            raise error.RevlogError(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   665
                _(b"index %s is corrupted") % self.indexfile
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   666
            )
43526
e258ad110488 revlog: no longer return the nodemap after parsing
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43525
diff changeset
   667
        self.index, self._chunkcache = d
13265
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   668
        if not self._chunkcache:
04b302ce2781 revlog: always add the magic nullid/nullrev entry in parseindex
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 13264
diff changeset
   669
            self._chunkclear()
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   670
        # revnum -> (chain-length, sum-delta-length)
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   671
        self._chaininfocache = {}
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
   672
        # revlog header -> revlog compressor
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
   673
        self._decompressors = {}
116
e484cd5ec282 Only use lazy indexing for big indices and avoid the overhead of the
mpm@selenic.com
parents: 115
diff changeset
   674
30795
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
   675
    @util.propertycache
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
   676
    def _compressor(self):
42043
1fac9b931d46 compression: introduce a `storage.revlog.zlib.level` configuration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41872
diff changeset
   677
        engine = util.compengines[self._compengine]
1fac9b931d46 compression: introduce a `storage.revlog.zlib.level` configuration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41872
diff changeset
   678
        return engine.revlogcompressor(self._compengineopts)
30795
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
   679
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   680
    def _indexfp(self, mode=b'r'):
35968
91b3b11565e5 revlog: move index file opening in a method
Boris Feld <boris.feld@octobus.net>
parents: 35967
diff changeset
   681
        """file object for the revlog's index file"""
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43440
diff changeset
   682
        args = {'mode': mode}
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   683
        if mode != b'r':
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43440
diff changeset
   684
            args['checkambig'] = self._checkambig
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   685
        if mode == b'w':
43506
9f70512ae2cf cleanup: remove pointless r-prefixes on single-quoted strings
Augie Fackler <augie@google.com>
parents: 43440
diff changeset
   686
            args['atomictemp'] = True
35968
91b3b11565e5 revlog: move index file opening in a method
Boris Feld <boris.feld@octobus.net>
parents: 35967
diff changeset
   687
        return self.opener(self.indexfile, **args)
91b3b11565e5 revlog: move index file opening in a method
Boris Feld <boris.feld@octobus.net>
parents: 35967
diff changeset
   688
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   689
    def _datafp(self, mode=b'r'):
35967
61326dd7cb8d revlog: move datafile opening in a method
Boris Feld <boris.feld@octobus.net>
parents: 35845
diff changeset
   690
        """file object for the revlog's data file"""
61326dd7cb8d revlog: move datafile opening in a method
Boris Feld <boris.feld@octobus.net>
parents: 35845
diff changeset
   691
        return self.opener(self.datafile, mode=mode)
61326dd7cb8d revlog: move datafile opening in a method
Boris Feld <boris.feld@octobus.net>
parents: 35845
diff changeset
   692
35973
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   693
    @contextlib.contextmanager
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   694
    def _datareadfp(self, existingfp=None):
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   695
        """file object suitable to read data"""
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   696
        # Use explicit file handle, if given.
35973
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   697
        if existingfp is not None:
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   698
            yield existingfp
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   699
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   700
        # Use a file handle being actively used for writes, if available.
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   701
        # There is some danger to doing this because reads will seek the
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   702
        # file. However, _writeentry() performs a SEEK_END before all writes,
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   703
        # so we should be safe.
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   704
        elif self._writinghandles:
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   705
            if self._inline:
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   706
                yield self._writinghandles[0]
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   707
            else:
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   708
                yield self._writinghandles[1]
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   709
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
   710
        # Otherwise open a new file handle.
35973
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   711
        else:
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   712
            if self._inline:
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   713
                func = self._indexfp
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   714
            else:
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   715
                func = self._datafp
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   716
            with func() as fp:
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   717
                yield fp
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
   718
43440
ec7ba79bf3db revlog: move tiprev() from changelog up to revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 43133
diff changeset
   719
    def tiprev(self):
ec7ba79bf3db revlog: move tiprev() from changelog up to revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 43133
diff changeset
   720
        return len(self.index) - 1
ec7ba79bf3db revlog: move tiprev() from changelog up to revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 43133
diff changeset
   721
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   722
    def tip(self):
43440
ec7ba79bf3db revlog: move tiprev() from changelog up to revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 43133
diff changeset
   723
        return self.node(self.tiprev())
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   724
24030
828dc8db5515 revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents: 23857
diff changeset
   725
    def __contains__(self, rev):
828dc8db5515 revlog: add __contains__ for fast membership test
Yuya Nishihara <yuya@tcha.org>
parents: 23857
diff changeset
   726
        return 0 <= rev < len(self)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   727
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   728
    def __len__(self):
38851
781b2720d2ac index: don't include nullid in len()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38850
diff changeset
   729
        return len(self.index)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   730
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
   731
    def __iter__(self):
38783
e7aa113b14f7 global: use pycompat.xrange()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 38777
diff changeset
   732
        return iter(pycompat.xrange(len(self)))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   733
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
   734
    def revs(self, start=0, stop=None):
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
   735
        """iterate over all rev in this revlog (from start to stop)"""
39881
d63153611ed5 storageutil: extract revision number iteration
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39879
diff changeset
   736
        return storageutil.iterrevs(len(self), start=start, stop=stop)
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   737
43574
02802fa87b74 revlog: deprecate direct `nodemap` access
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43573
diff changeset
   738
    @property
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   739
    def nodemap(self):
43574
02802fa87b74 revlog: deprecate direct `nodemap` access
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43573
diff changeset
   740
        msg = (
43619
c207c46a86b9 py3: pass a bytes value for "msg" to nouideprecwarn()
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 43581
diff changeset
   741
            b"revlog.nodemap is deprecated, "
c207c46a86b9 py3: pass a bytes value for "msg" to nouideprecwarn()
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 43581
diff changeset
   742
            b"use revlog.index.[has_node|rev|get_rev]"
43574
02802fa87b74 revlog: deprecate direct `nodemap` access
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43573
diff changeset
   743
        )
02802fa87b74 revlog: deprecate direct `nodemap` access
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43573
diff changeset
   744
        util.nouideprecwarn(msg, b'5.3', stacklevel=2)
43528
90a0f631829e revlog: return the nodemap as the nodecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43526
diff changeset
   745
        return self.index.nodemap
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
   746
43530
6e3e3e5446ba revlog: deprecate the _nodecache attribute (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43529
diff changeset
   747
    @property
6e3e3e5446ba revlog: deprecate the _nodecache attribute (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43529
diff changeset
   748
    def _nodecache(self):
43619
c207c46a86b9 py3: pass a bytes value for "msg" to nouideprecwarn()
Denis Laxalde <denis.laxalde@logilab.fr>
parents: 43581
diff changeset
   749
        msg = b"revlog._nodecache is deprecated, use revlog.index.nodemap"
43530
6e3e3e5446ba revlog: deprecate the _nodecache attribute (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43529
diff changeset
   750
        util.nouideprecwarn(msg, b'5.3', stacklevel=2)
6e3e3e5446ba revlog: deprecate the _nodecache attribute (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43529
diff changeset
   751
        return self.index.nodemap
6e3e3e5446ba revlog: deprecate the _nodecache attribute (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43529
diff changeset
   752
16374
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   753
    def hasnode(self, node):
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   754
        try:
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   755
            self.rev(node)
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   756
            return True
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   757
        except KeyError:
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   758
            return False
29c2ff719715 revlog: add hasnode helper method
Matt Mackall <mpm@selenic.com>
parents: 15890
diff changeset
   759
36743
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   760
    def candelta(self, baserev, rev):
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   761
        """whether two revisions (baserev, rev) can be delta-ed or not"""
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   762
        # Disable delta if either rev requires a content-changing flag
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   763
        # processor (ex. LFS). This is because such flag processor can alter
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   764
        # the rawtext content that the delta will be based on, and two clients
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   765
        # could have a same revlog node with different flags (i.e. different
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   766
        # rawtext contents) and the delta could be incompatible.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   767
        if (self.flags(baserev) & REVIDX_RAWTEXT_CHANGING_FLAGS) or (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   768
            self.flags(rev) & REVIDX_RAWTEXT_CHANGING_FLAGS
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   769
        ):
36743
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   770
            return False
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   771
        return True
d031609b3cb7 changegroup: do not delta lfs revisions
Jun Wu <quark@fb.com>
parents: 35738
diff changeset
   772
44445
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   773
    def update_caches(self, transaction):
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   774
        if self.nodemap_file is not None:
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   775
            if transaction is None:
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   776
                nodemaputil.update_persistent_nodemap(self)
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   777
            else:
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   778
                nodemaputil.setup_persistent_nodemap(transaction, self)
336ec75ed1ac nodemap: warm the persistent nodemap on disk with debugupdatecache
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44363
diff changeset
   779
16414
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
   780
    def clearcaches(self):
40052
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
   781
        self._revisioncache = None
29830
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   782
        self._chainbasecache.clear()
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
   783
        self._chunkcache = (0, b'')
27465
072a675c51f2 revlog: make clearcaches() more effective
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27449
diff changeset
   784
        self._pcache = {}
44501
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   785
        self._nodemap_docket = None
43525
845e5b313783 revlog: move the nodemap into the index object (for pure)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43524
diff changeset
   786
        self.index.clearcaches()
44501
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   787
        # The python code is the one responsible for validating the docket, we
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   788
        # end up having to refresh it here.
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   789
        use_nodemap = (
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   790
            not self._inline
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   791
            and self.nodemap_file is not None
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   792
            and util.safehasattr(self.index, 'update_nodemap_data')
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   793
        )
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   794
        if use_nodemap:
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   795
            nodemap_data = nodemaputil.persisted_data(self)
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   796
            if nodemap_data is not None:
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   797
                self._nodemap_docket = nodemap_data[0]
87b327de772c nodemap: refresh the persistent data on nodemap creation
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44491
diff changeset
   798
                self.index.update_nodemap_data(*nodemap_data)
16414
e8d37b78acfb parsers: use base-16 trie for faster node->rev mapping
Bryan O'Sullivan <bryano@fb.com>
parents: 16375
diff changeset
   799
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
   800
    def rev(self, node):
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   801
        try:
43553
2da51e292734 index: use `index.rev` in `revlog.rev`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43552
diff changeset
   802
            return self.index.rev(node)
22282
4092d12ba18a repoview: fix 0L with pack/unpack for 2.4
Matt Mackall <mpm@selenic.com>
parents: 21752
diff changeset
   803
        except TypeError:
4092d12ba18a repoview: fix 0L with pack/unpack for 2.4
Matt Mackall <mpm@selenic.com>
parents: 21752
diff changeset
   804
            raise
39773
2cd93a8d4bde revlog: drop RevlogError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39769
diff changeset
   805
        except error.RevlogError:
43525
845e5b313783 revlog: move the nodemap into the index object (for pure)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43524
diff changeset
   806
            # parsers.c radix tree lookup failed
845e5b313783 revlog: move the nodemap into the index object (for pure)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43524
diff changeset
   807
            if node == wdirid or node in wdirfilenodeids:
845e5b313783 revlog: move the nodemap into the index object (for pure)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43524
diff changeset
   808
                raise error.WdirUnsupported
845e5b313783 revlog: move the nodemap into the index object (for pure)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43524
diff changeset
   809
            raise error.LookupError(node, self.indexfile, _(b'no node'))
13275
68da048b4c88 revlog: incrementally build node cache with linear searches
Matt Mackall <mpm@selenic.com>
parents: 13268
diff changeset
   810
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   811
    # Accessors for index entries.
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   812
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   813
    # First tuple entry is 8 bytes. First 6 bytes are offset. Last 2 bytes
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   814
    # are flags.
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
   815
    def start(self, rev):
5006
c2febf5420e9 revlog: minor chunk speed-up
Matt Mackall <mpm@selenic.com>
parents: 5005
diff changeset
   816
        return int(self.index[rev][0] >> 16)
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   817
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   818
    def flags(self, rev):
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   819
        return self.index[rev][0] & 0xFFFF
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   820
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   821
    def length(self, rev):
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
   822
        return self.index[rev][1]
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   823
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   824
    def rawsize(self, rev):
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   825
        """return the length of the uncompressed text for a given revision"""
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   826
        l = self.index[rev][2]
38177
7fa3408f83ef revlog: disallow setting uncompressed length to None
Yuya Nishihara <yuya@tcha.org>
parents: 38169
diff changeset
   827
        if l >= 0:
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   828
            return l
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   829
42768
5a8f2c8edff6 rawdata: update caller in revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42732
diff changeset
   830
        t = self.rawdata(rev)
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   831
        return len(t)
31856
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   832
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   833
    def size(self, rev):
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   834
        """length of non-raw text (processed by a "read" flag processor)"""
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   835
        # fast path: if no "read" flag processor could change the content,
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   836
        # size is rawsize. note: ELLIPSIS is known to not change the content.
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   837
        flags = self.flags(rev)
42730
92ac6b1697a7 flagutil: move REVIDX_KNOWN_FLAGS source of truth in flagutil (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42729
diff changeset
   838
        if flags & (flagutil.REVIDX_KNOWN_FLAGS ^ REVIDX_ELLIPSIS) == 0:
31856
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   839
            return self.rawsize(rev)
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   840
0ab7f469d386 revlog: make "size" diverge from "rawsize"
Jun Wu <quark@fb.com>
parents: 31804
diff changeset
   841
        return len(self.revision(rev, raw=False))
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   842
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   843
    def chainbase(self, rev):
29830
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   844
        base = self._chainbasecache.get(rev)
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   845
        if base is not None:
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   846
            return base
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   847
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   848
        index = self.index
38169
fc72beec2a1a revlog: make chainbase cache its result for the correct revision
Paul Morelle <paul.morelle@octobus.net>
parents: 38168
diff changeset
   849
        iterrev = rev
fc72beec2a1a revlog: make chainbase cache its result for the correct revision
Paul Morelle <paul.morelle@octobus.net>
parents: 38168
diff changeset
   850
        base = index[iterrev][3]
fc72beec2a1a revlog: make chainbase cache its result for the correct revision
Paul Morelle <paul.morelle@octobus.net>
parents: 38168
diff changeset
   851
        while base != iterrev:
fc72beec2a1a revlog: make chainbase cache its result for the correct revision
Paul Morelle <paul.morelle@octobus.net>
parents: 38168
diff changeset
   852
            iterrev = base
fc72beec2a1a revlog: make chainbase cache its result for the correct revision
Paul Morelle <paul.morelle@octobus.net>
parents: 38168
diff changeset
   853
            base = index[iterrev][3]
29830
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   854
92ac2baaea86 revlog: use an LRU cache for delta chain bases
Gregory Szorc <gregory.szorc@gmail.com>
parents: 29829
diff changeset
   855
        self._chainbasecache[rev] = base
14252
19067884c5f5 revlog: calculate base revisions iteratively
Sune Foldager <cryo@cyanite.org>
parents: 14251
diff changeset
   856
        return base
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   857
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   858
    def linkrev(self, rev):
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   859
        return self.index[rev][4]
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   860
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   861
    def parentrevs(self, rev):
32403
a28c76e1cea9 revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32393
diff changeset
   862
        try:
35521
a0fab647a8f1 revlog: don't use slicing to return parents
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35345
diff changeset
   863
            entry = self.index[rev]
32403
a28c76e1cea9 revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32393
diff changeset
   864
        except IndexError:
a28c76e1cea9 revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32393
diff changeset
   865
            if rev == wdirrev:
a28c76e1cea9 revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32393
diff changeset
   866
                raise error.WdirUnsupported
a28c76e1cea9 revlog: raise WdirUnsupported when wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32393
diff changeset
   867
            raise
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   868
35521
a0fab647a8f1 revlog: don't use slicing to return parents
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35345
diff changeset
   869
        return entry[5], entry[6]
a0fab647a8f1 revlog: don't use slicing to return parents
Gregory Szorc <gregory.szorc@gmail.com>
parents: 35345
diff changeset
   870
40152
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   871
    # fast parentrevs(rev) where rev isn't filtered
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   872
    _uncheckedparentrevs = parentrevs
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   873
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   874
    def node(self, rev):
32443
34e9b8b94f66 revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32403
diff changeset
   875
        try:
34e9b8b94f66 revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32403
diff changeset
   876
            return self.index[rev][7]
34e9b8b94f66 revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32403
diff changeset
   877
        except IndexError:
34e9b8b94f66 revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32403
diff changeset
   878
            if rev == wdirrev:
34e9b8b94f66 revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32403
diff changeset
   879
                raise error.WdirUnsupported
34e9b8b94f66 revlog: raise error.WdirUnsupported from revlog.node() if wdirrev is passed
Pulkit Goyal <7895pulkit@gmail.com>
parents: 32403
diff changeset
   880
            raise
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   881
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   882
    # Derived from index values.
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   883
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   884
    def end(self, rev):
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   885
        return self.start(rev) + self.length(rev)
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   886
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   887
    def parents(self, node):
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   888
        i = self.index
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   889
        d = i[self.rev(node)]
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
   890
        return i[d[5]][7], i[d[6]][7]  # map revisions to nodes inline
30287
0986f225c149 revlog: reorder index accessors to match data structure order
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30210
diff changeset
   891
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   892
    def chainlen(self, rev):
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
   893
        return self._chaininfo(rev)[0]
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   894
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
   895
    def _chaininfo(self, rev):
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   896
        chaininfocache = self._chaininfocache
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   897
        if rev in chaininfocache:
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   898
            return chaininfocache[rev]
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   899
        index = self.index
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   900
        generaldelta = self._generaldelta
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   901
        iterrev = rev
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   902
        e = index[iterrev]
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   903
        clen = 0
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
   904
        compresseddeltalen = 0
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   905
        while iterrev != e[3]:
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   906
            clen += 1
23286
40e0067899d4 revlog: compute length of compressed deltas along with chain length
Siddharth Agarwal <sid0@fb.com>
parents: 23285
diff changeset
   907
            compresseddeltalen += e[1]
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   908
            if generaldelta:
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   909
                iterrev = e[3]
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   910
            else:
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   911
                iterrev -= 1
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   912
            if iterrev in chaininfocache:
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   913
                t = chaininfocache[iterrev]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   914
                clen += t[0]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   915
                compresseddeltalen += t[1]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   916
                break
23254
d23834b871ac debugrevlog: fix computing chain length in debugrevlog -d
Mateusz Kwapich <mitrandir@fb.com>
parents: 22934
diff changeset
   917
            e = index[iterrev]
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   918
        else:
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   919
            # Add text length of base since decompressing that also takes
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   920
            # work. For cache hits the length is already included.
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   921
            compresseddeltalen += e[1]
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   922
        r = (clen, compresseddeltalen)
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   923
        chaininfocache[rev] = r
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   924
        return r
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
   925
27468
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   926
    def _deltachain(self, rev, stoprev=None):
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   927
        """Obtain the delta chain for a revision.
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   928
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   929
        ``stoprev`` specifies a revision to stop at. If not specified, we
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   930
        stop at the base of the chain.
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   931
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   932
        Returns a 2-tuple of (chain, stopped) where ``chain`` is a list of
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   933
        revs in ascending order and ``stopped`` is a bool indicating whether
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   934
        ``stoprev`` was hit.
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   935
        """
33171
6d678ab1b10d revlog: C implementation of delta chain resolution
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32969
diff changeset
   936
        # Try C implementation.
6d678ab1b10d revlog: C implementation of delta chain resolution
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32969
diff changeset
   937
        try:
6d678ab1b10d revlog: C implementation of delta chain resolution
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32969
diff changeset
   938
            return self.index.deltachain(rev, stoprev, self._generaldelta)
6d678ab1b10d revlog: C implementation of delta chain resolution
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32969
diff changeset
   939
        except AttributeError:
6d678ab1b10d revlog: C implementation of delta chain resolution
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32969
diff changeset
   940
            pass
6d678ab1b10d revlog: C implementation of delta chain resolution
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32969
diff changeset
   941
27468
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   942
        chain = []
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   943
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   944
        # Alias to prevent attribute lookup in tight loop.
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   945
        index = self.index
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   946
        generaldelta = self._generaldelta
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   947
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   948
        iterrev = rev
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   949
        e = index[iterrev]
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   950
        while iterrev != e[3] and iterrev != stoprev:
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   951
            chain.append(iterrev)
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   952
            if generaldelta:
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   953
                iterrev = e[3]
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   954
            else:
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   955
                iterrev -= 1
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   956
            e = index[iterrev]
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   957
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   958
        if iterrev == stoprev:
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   959
            stopped = True
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   960
        else:
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   961
            chain.append(iterrev)
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   962
            stopped = False
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   963
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   964
        chain.reverse()
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   965
        return chain, stopped
93ac15f03331 revlog: refactor delta chain computation into own function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27465
diff changeset
   966
18081
f88c60e740a1 revlog.ancestors: add support for including revs
Siddharth Agarwal <sid0@fb.com>
parents: 17975
diff changeset
   967
    def ancestors(self, revs, stoprev=0, inclusive=False):
40738
8947f49daaa8 revlog: update the docstring of `ancestors` to match reality
Boris Feld <boris.feld@octobus.net>
parents: 40627
diff changeset
   968
        """Generate the ancestors of 'revs' in reverse revision order.
16868
eb88ed4269c5 revlog: add optional stoprev arg to revlog.ancestors()
Joshua Redstone <joshua.redstone@fb.com>
parents: 16867
diff changeset
   969
        Does not generate revs lower than stoprev.
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   970
18090
9abc55ef85b5 revlog: move ancestor generation out to a new class
Siddharth Agarwal <sid0@fb.com>
parents: 18083
diff changeset
   971
        See the documentation for ancestor.lazyancestors for more details."""
18081
f88c60e740a1 revlog.ancestors: add support for including revs
Siddharth Agarwal <sid0@fb.com>
parents: 17975
diff changeset
   972
40152
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   973
        # first, make sure start revisions aren't filtered
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   974
        revs = list(revs)
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   975
        checkrev = self.node
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   976
        for r in revs:
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   977
            checkrev(r)
adbf8ca239e4 revlog: optimize ancestors() to not check filtered revisions for each
Yuya Nishihara <yuya@tcha.org>
parents: 40056
diff changeset
   978
        # and we're sure ancestors aren't filtered as well
41115
536c83535cbd rust-cpython: using the new bindings from Python
Georges Racinet <gracinet@anybox.fr>
parents: 41086
diff changeset
   979
42452
a3a8887e4426 rust: using policy.importrust from Python callers
Georges Racinet <georges.racinet@octobus.net>
parents: 42446
diff changeset
   980
        if rustancestor is not None:
a3a8887e4426 rust: using policy.importrust from Python callers
Georges Racinet <georges.racinet@octobus.net>
parents: 42446
diff changeset
   981
            lazyancestors = rustancestor.LazyAncestors
41115
536c83535cbd rust-cpython: using the new bindings from Python
Georges Racinet <gracinet@anybox.fr>
parents: 41086
diff changeset
   982
            arg = self.index
536c83535cbd rust-cpython: using the new bindings from Python
Georges Racinet <gracinet@anybox.fr>
parents: 41086
diff changeset
   983
        else:
536c83535cbd rust-cpython: using the new bindings from Python
Georges Racinet <gracinet@anybox.fr>
parents: 41086
diff changeset
   984
            lazyancestors = ancestor.lazyancestors
536c83535cbd rust-cpython: using the new bindings from Python
Georges Racinet <gracinet@anybox.fr>
parents: 41086
diff changeset
   985
            arg = self._uncheckedparentrevs
536c83535cbd rust-cpython: using the new bindings from Python
Georges Racinet <gracinet@anybox.fr>
parents: 41086
diff changeset
   986
        return lazyancestors(arg, revs, stoprev=stoprev, inclusive=inclusive)
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   987
16867
1093ad1e8903 revlog: descendants(*revs) becomes descendants(revs) (API)
Bryan O'Sullivan <bryano@fb.com>
parents: 16866
diff changeset
   988
    def descendants(self, revs):
39999
0b24fcd88066 dagop: extract descendants() from revlog module
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39908
diff changeset
   989
        return dagop.descendantrevs(revs, self.revs, self.parentrevs)
6872
c7cc40fd74f6 Add ancestors and descendants to revlog
Stefano Tortarolo <stefano.tortarolo@gmail.com>
parents: 6750
diff changeset
   990
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   991
    def findcommonmissing(self, common=None, heads=None):
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
   992
        """Return a tuple of the ancestors of common and the ancestors of heads
15835
fa15869bf95c revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15827
diff changeset
   993
        that are not ancestors of common. In revset terminology, we return the
fa15869bf95c revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15827
diff changeset
   994
        tuple:
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   995
15835
fa15869bf95c revlog: improve docstring for findcommonmissing
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15827
diff changeset
   996
          ::common, (::heads) - (::common)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
   997
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   998
        The list is sorted by revision number, meaning it is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
   999
        topologically sorted.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1000
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1001
        'heads' and 'common' are both lists of node IDs.  If heads is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1002
        not supplied, uses all of the revlog's heads.  If common is not
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1003
        supplied, uses nullid."""
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1004
        if common is None:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1005
            common = [nullid]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1006
        if heads is None:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1007
            heads = self.heads()
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1008
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1009
        common = [self.rev(n) for n in common]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1010
        heads = [self.rev(n) for n in heads]
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1011
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1012
        # we want the ancestors, but inclusive
20073
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1013
        class lazyset(object):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1014
            def __init__(self, lazyvalues):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1015
                self.addedvalues = set()
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1016
                self.lazyvalues = lazyvalues
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1017
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1018
            def __contains__(self, value):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1019
                return value in self.addedvalues or value in self.lazyvalues
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1020
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1021
            def __iter__(self):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1022
                added = self.addedvalues
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1023
                for r in added:
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1024
                    yield r
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1025
                for r in self.lazyvalues:
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1026
                    if not r in added:
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1027
                        yield r
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1028
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1029
            def add(self, value):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1030
                self.addedvalues.add(value)
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1031
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1032
            def update(self, values):
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1033
                self.addedvalues.update(values)
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1034
eeba4eaf0716 revlog: return lazy set from findcommonmissing
Durham Goode <durham@fb.com>
parents: 19776
diff changeset
  1035
        has = lazyset(self.ancestors(common))
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
  1036
        has.add(nullrev)
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
  1037
        has.update(common)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1038
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1039
        # take all ancestors from heads that aren't in has
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
  1040
        missing = set()
25113
0ca8410ea345 util: drop alias for collections.deque
Martin von Zweigbergk <martinvonz@google.com>
parents: 24454
diff changeset
  1041
        visit = collections.deque(r for r in heads if r not in has)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1042
        while visit:
16803
107a3270a24a cleanup: use the deque type where appropriate
Bryan O'Sullivan <bryano@fb.com>
parents: 16786
diff changeset
  1043
            r = visit.popleft()
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1044
            if r in missing:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1045
                continue
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1046
            else:
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
  1047
                missing.add(r)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1048
                for p in self.parentrevs(r):
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1049
                    if p not in has:
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1050
                        visit.append(p)
8453
d1ca637b0773 revlog.missing(): use sets instead of a dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8391
diff changeset
  1051
        missing = list(missing)
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1052
        missing.sort()
30391
2ded17b64f09 revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents: 30289
diff changeset
  1053
        return has, [self.node(miss) for miss in missing]
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1054
23337
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1055
    def incrementalmissingrevs(self, common=None):
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1056
        """Return an object that can be used to incrementally compute the
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1057
        revision numbers of the ancestors of arbitrary sets that are not
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1058
        ancestors of common. This is an ancestor.incrementalmissingancestors
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1059
        object.
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1060
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1061
        'common' is a list of revision numbers. If common is not supplied, uses
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1062
        nullrev.
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1063
        """
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1064
        if common is None:
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1065
            common = [nullrev]
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1066
42452
a3a8887e4426 rust: using policy.importrust from Python callers
Georges Racinet <georges.racinet@octobus.net>
parents: 42446
diff changeset
  1067
        if rustancestor is not None:
a3a8887e4426 rust: using policy.importrust from Python callers
Georges Racinet <georges.racinet@octobus.net>
parents: 42446
diff changeset
  1068
            return rustancestor.MissingAncestors(self.index, common)
23337
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1069
        return ancestor.incrementalmissingancestors(self.parentrevs, common)
3a8a763f4197 revlog: add a method to get missing revs incrementally
Siddharth Agarwal <sid0@fb.com>
parents: 23328
diff changeset
  1070
17972
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1071
    def findmissingrevs(self, common=None, heads=None):
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1072
        """Return the revision numbers of the ancestors of heads that
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1073
        are not ancestors of common.
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1074
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1075
        More specifically, return a list of revision numbers corresponding to
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1076
        nodes N such that every N satisfies the following constraints:
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1077
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1078
          1. N is an ancestor of some node in 'heads'
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1079
          2. N is not an ancestor of any node in 'common'
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1080
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1081
        The list is sorted by revision number, meaning it is
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1082
        topologically sorted.
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1083
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1084
        'heads' and 'common' are both lists of revision numbers.  If heads is
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1085
        not supplied, uses all of the revlog's heads.  If common is not
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1086
        supplied, uses nullid."""
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1087
        if common is None:
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1088
            common = [nullrev]
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1089
        if heads is None:
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1090
            heads = self.headrevs()
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1091
23338
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
  1092
        inc = self.incrementalmissingrevs(common=common)
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
  1093
        return inc.missingancestors(heads)
17972
7ef00d09ef35 revlog: add rev-specific variant of findmissing
Siddharth Agarwal <sid0@fb.com>
parents: 17971
diff changeset
  1094
13741
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1095
    def findmissing(self, common=None, heads=None):
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1096
        """Return the ancestors of heads that are not ancestors of common.
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1097
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1098
        More specifically, return a list of nodes N such that every N
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1099
        satisfies the following constraints:
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1100
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1101
          1. N is an ancestor of some node in 'heads'
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1102
          2. N is not an ancestor of any node in 'common'
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1103
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1104
        The list is sorted by revision number, meaning it is
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1105
        topologically sorted.
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1106
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1107
        'heads' and 'common' are both lists of node IDs.  If heads is
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1108
        not supplied, uses all of the revlog's heads.  If common is not
b51bf961b3cb wireproto: add getbundle() function
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 13400
diff changeset
  1109
        supplied, uses nullid."""
17971
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1110
        if common is None:
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1111
            common = [nullid]
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1112
        if heads is None:
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1113
            heads = self.heads()
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1114
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1115
        common = [self.rev(n) for n in common]
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1116
        heads = [self.rev(n) for n in heads]
e1b9a78a7aed revlog: switch findmissing to use ancestor.missingancestors
Siddharth Agarwal <sid0@fb.com>
parents: 17951
diff changeset
  1117
23338
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
  1118
        inc = self.incrementalmissingrevs(common=common)
d8f5b2f50f41 revlog: switch findmissing* methods to incrementalmissingrevs
Siddharth Agarwal <sid0@fb.com>
parents: 23337
diff changeset
  1119
        return [self.node(r) for r in inc.missingancestors(heads)]
7233
9f0e52e1df77 fix pull racing with push/commit (issue1320)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 7109
diff changeset
  1120
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1121
    def nodesbetween(self, roots=None, heads=None):
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1122
        """Return a topological path from 'roots' to 'heads'.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1123
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1124
        Return a tuple (nodes, outroots, outheads) where 'nodes' is a
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1125
        topologically sorted list of all nodes N that satisfy both of
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1126
        these constraints:
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1127
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1128
          1. N is a descendant of some node in 'roots'
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1129
          2. N is an ancestor of some node in 'heads'
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1130
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1131
        Every node is considered to be both a descendant and an ancestor
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1132
        of itself, so every reachable node in 'roots' and 'heads' will be
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1133
        included in 'nodes'.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1134
10047
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1135
        'outroots' is the list of reachable nodes in 'roots', i.e., the
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1136
        subset of 'roots' that is returned in 'nodes'.  Likewise,
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1137
        'outheads' is the subset of 'heads' that is also in 'nodes'.
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1138
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1139
        'roots' and 'heads' are both lists of node IDs.  If 'roots' is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1140
        unspecified, uses nullid as the only root.  If 'heads' is
27267b1f68b4 revlog: rewrite several method docstrings
Greg Ward <greg-hg@gerg.ca>
parents: 9679
diff changeset
  1141
        unspecified, uses list of all of the revlog's heads."""
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1142
        nonodes = ([], [], [])
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1143
        if roots is not None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1144
            roots = list(roots)
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1145
            if not roots:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1146
                return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1147
            lowestrev = min([self.rev(n) for n in roots])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1148
        else:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1149
            roots = [nullid]  # Everybody's a descendant of nullid
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
  1150
            lowestrev = nullrev
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
  1151
        if (lowestrev == nullrev) and (heads is None):
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1152
            # We want _all_ the nodes!
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1153
            return ([self.node(r) for r in self], [nullid], list(self.heads()))
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1154
        if heads is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1155
            # All nodes are ancestors, so the latest ancestor is the last
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1156
            # node.
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1157
            highestrev = len(self) - 1
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1158
            # Set ancestors to None to signal that every node is an ancestor.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1159
            ancestors = None
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1160
            # Set heads to an empty dictionary for later discovery of heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1161
            heads = {}
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1162
        else:
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1163
            heads = list(heads)
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1164
            if not heads:
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1165
                return nonodes
8464
7af92e70bb25 revlog: use set instead of dict
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 8453
diff changeset
  1166
            ancestors = set()
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1167
            # Turn heads into a dictionary so we can remove 'fake' heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1168
            # Also, later we will be using it to filter out the heads we can't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1169
            # find from roots.
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
  1170
            heads = dict.fromkeys(heads, False)
3360
ef8307585b41 nodesbetween: fix a bug with duplicate heads
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3335
diff changeset
  1171
            # Start at the top and keep marking parents until we're done.
8163
62d7287fe6b0 rebase, revlog: use set(x) instead of set(x.keys())
Martin Geisler <mg@lazybytes.net>
parents: 8153
diff changeset
  1172
            nodestotag = set(heads)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1173
            # Remember where the top was so we can use it as a limit later.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1174
            highestrev = max([self.rev(n) for n in nodestotag])
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1175
            while nodestotag:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1176
                # grab a node to tag
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1177
                n = nodestotag.pop()
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1178
                # Never tag nullid
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1179
                if n == nullid:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1180
                    continue
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1181
                # A node's revision number represents its place in a
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1182
                # topologically sorted list of nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1183
                r = self.rev(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1184
                if r >= lowestrev:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1185
                    if n not in ancestors:
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1186
                        # If we are possibly a descendant of one of the roots
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1187
                        # and we haven't already been marked as an ancestor
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1188
                        ancestors.add(n)  # Mark as ancestor
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1189
                        # Add non-nullid parents to list of nodes to tag.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1190
                        nodestotag.update(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1191
                            [p for p in self.parents(n) if p != nullid]
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1192
                        )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1193
                    elif n in heads:  # We've seen it before, is it a fake head?
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1194
                        # So it is, real heads should not be the ancestors of
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1195
                        # any other heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1196
                        heads.pop(n)
1459
106fdec8e1fb Fix small bug in nodesbetween if heads is [nullid].
Eric Hopper <hopper@omnifarious.org>
parents: 1458
diff changeset
  1197
            if not ancestors:
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1198
                return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1199
            # Now that we have our set of ancestors, we want to remove any
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1200
            # roots that are not ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1201
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1202
            # If one of the roots was nullid, everything is included anyway.
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
  1203
            if lowestrev > nullrev:
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1204
                # But, since we weren't, let's recompute the lowest rev to not
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1205
                # include roots that aren't ancestors.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1206
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1207
                # Filter out roots that aren't ancestors of heads
30391
2ded17b64f09 revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents: 30289
diff changeset
  1208
                roots = [root for root in roots if root in ancestors]
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1209
                # Recompute the lowest revision
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1210
                if roots:
30391
2ded17b64f09 revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents: 30289
diff changeset
  1211
                    lowestrev = min([self.rev(root) for root in roots])
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1212
                else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1213
                    # No more roots?  Return empty list
1463
26e73acc0cdf Fix to handle case of empty list for roots or heads in nodesbetween.
Eric Hopper <hopper@omnifarious.org>
parents: 1459
diff changeset
  1214
                    return nonodes
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1215
            else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1216
                # We are descending from nullid, and don't need to care about
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1217
                # any other roots.
3578
3b4e00cba57a Define and use nullrev (revision of nullid) instead of -1.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 3508
diff changeset
  1218
                lowestrev = nullrev
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1219
                roots = [nullid]
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
  1220
        # Transform our roots list into a set.
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1221
        descendants = set(roots)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1222
        # Also, keep the original roots so we can filter out roots that aren't
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1223
        # 'real' roots (i.e. are descended from other roots).
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1224
        roots = descendants.copy()
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1225
        # Our topologically sorted list of output nodes.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1226
        orderedout = []
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1227
        # Don't start at nullid since we don't want nullid in our output list,
17483
fe3b26048140 spelling: descendants
timeless@mozdev.org
parents: 17150
diff changeset
  1228
        # and if nullid shows up in descendants, empty parents will look like
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1229
        # they're descendants.
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
  1230
        for r in self.revs(start=max(lowestrev, 0), stop=highestrev + 1):
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1231
            n = self.node(r)
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1232
            isdescendant = False
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1233
            if lowestrev == nullrev:  # Everybody is a descendant of nullid
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1234
                isdescendant = True
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1235
            elif n in descendants:
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1236
                # n is already a descendant
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1237
                isdescendant = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1238
                # This check only needs to be done here because all the roots
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1239
                # will start being marked is descendants before the loop.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1240
                if n in roots:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1241
                    # If n was a root, check if it's a 'real' root.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1242
                    p = tuple(self.parents(n))
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1243
                    # If any of its parents are descendants, it's not a root.
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1244
                    if (p[0] in descendants) or (p[1] in descendants):
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
  1245
                        roots.remove(n)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1246
            else:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1247
                p = tuple(self.parents(n))
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1248
                # A node is a descendant if either of its parents are
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1249
                # descendants.  (We seeded the dependents list with the roots
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1250
                # up there, remember?)
14549
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1251
                if (p[0] in descendants) or (p[1] in descendants):
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1252
                    descendants.add(n)
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1253
                    isdescendant = True
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1254
            if isdescendant and ((ancestors is None) or (n in ancestors)):
48ec0763afbb check-code: catch misspellings of descendant
Matt Mackall <mpm@selenic.com>
parents: 14523
diff changeset
  1255
                # Only include nodes that are both descendants and ancestors.
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1256
                orderedout.append(n)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1257
                if (ancestors is not None) and (n in heads):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1258
                    # We're trying to figure out which heads are reachable
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1259
                    # from roots.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1260
                    # Mark this head as having been reached
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
  1261
                    heads[n] = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1262
                elif ancestors is None:
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1263
                    # Otherwise, we're trying to discover the heads.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1264
                    # Assume this is a head because if it isn't, the next step
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1265
                    # will eventually remove it.
14219
c33427080671 revlog: use real Booleans instead of 0/1 in nodesbetween
Martin Geisler <mg@aragost.com>
parents: 14208
diff changeset
  1266
                    heads[n] = True
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1267
                    # But, obviously its parents aren't.
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1268
                    for p in self.parents(n):
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1269
                        heads.pop(p, None)
43106
d783f945a701 py3: finish porting iteritems() to pycompat and remove source transformer
Gregory Szorc <gregory.szorc@gmail.com>
parents: 43089
diff changeset
  1270
        heads = [head for head, flag in pycompat.iteritems(heads) if flag]
8152
08e1baf924ca replace set-like dictionaries with real sets
Martin Geisler <mg@lazybytes.net>
parents: 8150
diff changeset
  1271
        roots = list(roots)
1457
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1272
        assert orderedout
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1273
        assert roots
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1274
        assert heads
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1275
        return (orderedout, roots, heads)
518da3c3b6ce This implements the nodesbetween method, and it removes the newer method
Eric Hopper <hopper@omnifarious.org>
parents: 1351
diff changeset
  1276
41275
1421d0487a61 revlog: accept a revs argument in `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 41247
diff changeset
  1277
    def headrevs(self, revs=None):
1421d0487a61 revlog: accept a revs argument in `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 41247
diff changeset
  1278
        if revs is None:
1421d0487a61 revlog: accept a revs argument in `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 41247
diff changeset
  1279
            try:
1421d0487a61 revlog: accept a revs argument in `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 41247
diff changeset
  1280
                return self.index.headrevs()
1421d0487a61 revlog: accept a revs argument in `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 41247
diff changeset
  1281
            except AttributeError:
1421d0487a61 revlog: accept a revs argument in `headrevs`
Boris Feld <boris.feld@octobus.net>
parents: 41247
diff changeset
  1282
                return self._headrevs()
42452
a3a8887e4426 rust: using policy.importrust from Python callers
Georges Racinet <georges.racinet@octobus.net>
parents: 42446
diff changeset
  1283
        if rustdagop is not None:
a3a8887e4426 rust: using policy.importrust from Python callers
Georges Racinet <georges.racinet@octobus.net>
parents: 42446
diff changeset
  1284
            return rustdagop.headrevs(self.index, revs)
41763
6843379bf99e changelog: prefilter in headrevs()
Georges Racinet <georges.racinet@octobus.net>
parents: 41689
diff changeset
  1285
        return dagop.headrevs(revs, self._uncheckedparentrevs)
17674
e69274f8d444 clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17673
diff changeset
  1286
24444
27e3ba73fbb1 phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
parents: 24255
diff changeset
  1287
    def computephases(self, roots):
25361
1635579f9baf phases: fix bug where native phase computation wasn't called
Laurent Charignon <lcharignon@fb.com>
parents: 25113
diff changeset
  1288
        return self.index.computephasesmapsets(roots)
24444
27e3ba73fbb1 phase: default to C implementation for phase computation
Laurent Charignon <lcharignon@fb.com>
parents: 24255
diff changeset
  1289
17674
e69274f8d444 clfilter: split `revlog.headrevs` C call from python code
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17673
diff changeset
  1290
    def _headrevs(self):
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1291
        count = len(self)
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1292
        if not count:
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1293
            return [nullrev]
17673
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
  1294
        # we won't iter over filtered rev so nobody is a head at start
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
  1295
        ishead = [0] * (count + 1)
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1296
        index = self.index
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
  1297
        for r in self:
17673
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
  1298
            ishead[r] = 1  # I may be an head
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1299
            e = index[r]
17673
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
  1300
            ishead[e[5]] = ishead[e[6]] = 0  # my parent are not
d686c6876ef6 clfilter: handle non contiguous iteration in `revlov.headrevs`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17672
diff changeset
  1301
        return [r for r, val in enumerate(ishead) if val]
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1302
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
  1303
    def heads(self, start=None, stop=None):
1550
ccb9b62de892 add a -r/--rev option to heads to show only heads descendant from rev
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1535
diff changeset
  1304
        """return the list of all nodes that have no children
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
  1305
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
  1306
        if start is specified, only heads that are descendants of
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
  1307
        start will be returned
3923
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
  1308
        if stop is specified, it will consider all the revs from stop
27230c29bfec fix calculation of new heads added during push with -r
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3755
diff changeset
  1309
        as if they had no children
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
  1310
        """
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
  1311
        if start is None and stop is None:
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1312
            if not len(self):
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
  1313
                return [nullid]
14164
cb98fed52495 discovery: add new set-based discovery
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 14144
diff changeset
  1314
            return [self.node(r) for r in self.headrevs()]
4991
9c8c42bcf17a revlog: implement a fast path for heads
Matt Mackall <mpm@selenic.com>
parents: 4990
diff changeset
  1315
1551
e793cbc8be00 Fixes to "hg heads -r FOO":
Thomas Arendsen Hein <thomas@intevation.de>
parents: 1550
diff changeset
  1316
        if start is None:
40000
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1317
            start = nullrev
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1318
        else:
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1319
            start = self.rev(start)
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1320
44452
9d2b2df2c2ba cleanup: run pyupgrade on our source tree to clean up varying things
Augie Fackler <augie@google.com>
parents: 44445
diff changeset
  1321
        stoprevs = {self.rev(n) for n in stop or []}
40000
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1322
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1323
        revs = dagop.headrevssubset(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1324
            self.revs, self.parentrevs, startrev=start, stoprevs=stoprevs
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1325
        )
40000
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1326
8af835af0a85 dagop: extract DAG local heads functionality from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39999
diff changeset
  1327
        return [self.node(rev) for rev in revs]
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
  1328
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
  1329
    def children(self, node):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  1330
        """find the children of a given node"""
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
  1331
        c = []
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
  1332
        p = self.rev(node)
17672
474047947b8f clfilter: make the revlog class responsible of all its iteration
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
  1333
        for r in self.revs(start=p + 1):
4746
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1334
            prevs = [pr for pr in self.parentrevs(r) if pr != nullrev]
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1335
            if prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1336
                for pr in prevs:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1337
                    if pr == p:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1338
                        c.append(self.node(r))
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1339
            elif p == nullrev:
62c56d8f368b Fix revlog.children so the real children of the null revision can be calculated.
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4635
diff changeset
  1340
                c.append(self.node(r))
370
c90385d82aec revlog: add a children function
mpm@selenic.com
parents: 330
diff changeset
  1341
        return c
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
  1342
21104
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
  1343
    def commonancestorsheads(self, a, b):
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
  1344
        """calculate all the heads of the common ancestors of nodes a and b"""
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
  1345
        a, b = self.rev(a), self.rev(b)
38512
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1346
        ancs = self._commonancestorsheads(a, b)
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1347
        return pycompat.maplist(self.node, ancs)
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1348
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1349
    def _commonancestorsheads(self, *revs):
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1350
        """calculate all the heads of the common ancestors of revs"""
21104
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
  1351
        try:
38512
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1352
            ancs = self.index.commonancestorsheads(*revs)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1353
        except (AttributeError, OverflowError):  # C implementation failed
38512
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1354
            ancs = ancestor.commonancestorsheads(self.parentrevs, *revs)
99f864b34451 revlog: refactor out the rev-oriented part of commonancestorheads
Boris Feld <boris.feld@octobus.net>
parents: 38511
diff changeset
  1355
        return ancs
21104
40ace21cb3a1 revlog: introduce commonancestorsheads method
Mads Kiilerich <madski@unity3d.com>
parents: 20965
diff changeset
  1356
22381
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
  1357
    def isancestor(self, a, b):
38664
160da69ba1bf revlog: replace descendant(b, a) by isdescendantrev(a, b) (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 38663
diff changeset
  1358
        """return True if node a is an ancestor of node b
160da69ba1bf revlog: replace descendant(b, a) by isdescendantrev(a, b) (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 38663
diff changeset
  1359
160da69ba1bf revlog: replace descendant(b, a) by isdescendantrev(a, b) (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 38663
diff changeset
  1360
        A revision is considered an ancestor of itself."""
38514
cc3543c87de5 revlog: reuse 'descendant' implemention in 'isancestor'
Boris Feld <boris.feld@octobus.net>
parents: 38513
diff changeset
  1361
        a, b = self.rev(a), self.rev(b)
38666
a06b2b032557 revlog: introduce a isancestorrev() and use it in rebase
Martin von Zweigbergk <martinvonz@google.com>
parents: 38665
diff changeset
  1362
        return self.isancestorrev(a, b)
a06b2b032557 revlog: introduce a isancestorrev() and use it in rebase
Martin von Zweigbergk <martinvonz@google.com>
parents: 38665
diff changeset
  1363
a06b2b032557 revlog: introduce a isancestorrev() and use it in rebase
Martin von Zweigbergk <martinvonz@google.com>
parents: 38665
diff changeset
  1364
    def isancestorrev(self, a, b):
a06b2b032557 revlog: introduce a isancestorrev() and use it in rebase
Martin von Zweigbergk <martinvonz@google.com>
parents: 38665
diff changeset
  1365
        """return True if revision a is an ancestor of revision b
a06b2b032557 revlog: introduce a isancestorrev() and use it in rebase
Martin von Zweigbergk <martinvonz@google.com>
parents: 38665
diff changeset
  1366
38668
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1367
        A revision is considered an ancestor of itself.
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1368
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1369
        The implementation of this is trivial but the use of
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1370
        reachableroots is not."""
38668
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1371
        if a == nullrev:
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1372
            return True
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1373
        elif a == b:
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1374
            return True
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1375
        elif a > b:
21846c94e605 revlog: delete isdescendantrev() in favor of isancestorrev()
Martin von Zweigbergk <martinvonz@google.com>
parents: 38666
diff changeset
  1376
            return False
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1377
        return bool(self.reachableroots(a, [b], [a], includepath=False))
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1378
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1379
    def reachableroots(self, minroot, heads, roots, includepath=False):
43779
2e30d7df4809 revlog: fix revset in reachableroots docstring
Jun Wu <quark@fb.com>
parents: 43619
diff changeset
  1380
        """return (heads(::(<roots> and <roots>::<heads>)))
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1381
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1382
        If includepath is True, return (<roots>::<heads>)."""
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1383
        try:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1384
            return self.index.reachableroots2(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1385
                minroot, heads, roots, includepath
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1386
            )
42446
055c3e2c44f0 revlog: speed up isancestor
Valentin Gatien-Baron <vgatien-baron@janestreet.com>
parents: 42044
diff changeset
  1387
        except AttributeError:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1388
            return dagop._reachablerootspure(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1389
                self.parentrevs, minroot, roots, heads, includepath
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1390
            )
22381
392ae5cb8d62 revlog: introduce isancestor method for efficiently determining node lineage
Mads Kiilerich <madski@unity3d.com>
parents: 22282
diff changeset
  1391
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
  1392
    def ancestor(self, a, b):
22389
94f77624dbb5 comments: describe ancestor consistently - avoid 'least common ancestor'
Mads Kiilerich <madski@unity3d.com>
parents: 22381
diff changeset
  1393
        """calculate the "best" common ancestor of nodes a and b"""
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
  1394
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
  1395
        a, b = self.rev(a), self.rev(b)
18988
5bae936764bb parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents: 18987
diff changeset
  1396
        try:
5bae936764bb parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents: 18987
diff changeset
  1397
            ancs = self.index.ancestors(a, b)
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
  1398
        except (AttributeError, OverflowError):
18988
5bae936764bb parsers: a C implementation of the new ancestors algorithm
Bryan O'Sullivan <bryano@fb.com>
parents: 18987
diff changeset
  1399
            ancs = ancestor.ancestors(self.parentrevs, a, b)
18987
3605d4e7e618 revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents: 18986
diff changeset
  1400
        if ancs:
3605d4e7e618 revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents: 18986
diff changeset
  1401
            # choose a consistent winner when there's a tie
21107
4a6c8b6b10d3 revlog: backout 514d32de6646 - commonancestors
Mads Kiilerich <madski@unity3d.com>
parents: 21104
diff changeset
  1402
            return min(map(self.node, ancs))
18987
3605d4e7e618 revlog: choose a consistent ancestor when there's a tie
Bryan O'Sullivan <bryano@fb.com>
parents: 18986
diff changeset
  1403
        return nullid
10897
adb6a291bbdb revlog: put graph related functions together
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 10404
diff changeset
  1404
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1405
    def _match(self, id):
16762
93f8b9565257 revlog: don't handle long for revision matching
Matt Mackall <mpm@selenic.com>
parents: 16686
diff changeset
  1406
        if isinstance(id, int):
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
  1407
            # rev
2641
156fb1feab62 lookup should allow -1 to represent nullid (if passed an int as arg)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 2600
diff changeset
  1408
            return self.node(id)
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1409
        if len(id) == 20:
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1410
            # possibly a binary node
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1411
            # odds of a binary node being all hex in ASCII are 1 in 10**25
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1412
            try:
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1413
                node = id
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1414
                self.rev(node)  # quick search the index
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1415
                return node
39775
974592474dee revlog: drop LookupError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39774
diff changeset
  1416
            except error.LookupError:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1417
                pass  # may be partial hex id
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
  1418
        try:
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
  1419
            # str(rev)
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
  1420
            rev = int(id)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1421
            if b"%d" % rev != id:
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
  1422
                raise ValueError
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
  1423
            if rev < 0:
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1424
                rev = len(self) + rev
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  1425
            if rev < 0 or rev >= len(self):
4980
fc44c8df9d99 revlog: some codingstyle cleanups
Matt Mackall <mpm@selenic.com>
parents: 4979
diff changeset
  1426
                raise ValueError
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
  1427
            return self.node(rev)
469
e205194ca7ef Various node id lookup tweaks
mpm@selenic.com
parents: 451
diff changeset
  1428
        except (ValueError, OverflowError):
3156
d01e4cb2f5f2 cleanups in revlog.lookup
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3139
diff changeset
  1429
            pass
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1430
        if len(id) == 40:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1431
            try:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1432
                # a full hex nodeid?
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1433
                node = bin(id)
7874
d812029cda85 cleanup: drop variables for unused return values
Peter Arrenbrecht <peter.arrenbrecht@gmail.com>
parents: 7873
diff changeset
  1434
                self.rev(node)
3157
4fe41a9e4591 optimize revlog.lookup when passed hex(node)[:...]
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 3156
diff changeset
  1435
                return node
39775
974592474dee revlog: drop LookupError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39774
diff changeset
  1436
            except (TypeError, error.LookupError):
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1437
                pass
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1438
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1439
    def _partialmatch(self, id):
37449
a0d71618074f revlog: detect pseudo file nodeids to raise WdirUnsupported exception
Yuya Nishihara <yuya@tcha.org>
parents: 37443
diff changeset
  1440
        # we don't care wdirfilenodeids as they should be always full hash
32684
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1441
        maybewdir = wdirhex.startswith(id)
16665
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
  1442
        try:
30391
2ded17b64f09 revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents: 30289
diff changeset
  1443
            partial = self.index.partialmatch(id)
2ded17b64f09 revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents: 30289
diff changeset
  1444
            if partial and self.hasnode(partial):
32684
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1445
                if maybewdir:
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1446
                    # single 'ff...' match in radix tree, ambiguous with wdir
39773
2cd93a8d4bde revlog: drop RevlogError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39769
diff changeset
  1447
                    raise error.RevlogError
30391
2ded17b64f09 revlog: avoid shadowing several variables using list comprehensions
Augie Fackler <augie@google.com>
parents: 30289
diff changeset
  1448
                return partial
32684
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1449
            if maybewdir:
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1450
                # no 'ff...' match in radix tree, wdir identified
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1451
                raise error.WdirUnsupported
19471
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
  1452
            return None
39773
2cd93a8d4bde revlog: drop RevlogError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39769
diff changeset
  1453
        except error.RevlogError:
16665
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
  1454
            # parsers.c radix tree lookup gave multiple matches
29396
d0ae5b8f80dc revlog: add a fast path for "ambiguous identifier"
Jun Wu <quark@fb.com>
parents: 29339
diff changeset
  1455
            # fast path: for unfiltered changelog, radix tree is accurate
d0ae5b8f80dc revlog: add a fast path for "ambiguous identifier"
Jun Wu <quark@fb.com>
parents: 29339
diff changeset
  1456
            if not getattr(self, 'filteredrevs', None):
39774
4a2466b2a434 revlog: drop some more error aliases (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39773
diff changeset
  1457
                raise error.AmbiguousPrefixLookupError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1458
                    id, self.indexfile, _(b'ambiguous identifier')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1459
                )
19471
fd1bb7c1be78 revlog: handle hidden revs in _partialmatch (issue3979)
Matt Mackall <mpm@selenic.com>
parents: 19326
diff changeset
  1460
            # fall through to slow path that filters hidden revisions
16665
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
  1461
        except (AttributeError, ValueError):
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
  1462
            # we are pure python, or key was too short to search radix tree
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
  1463
            pass
e410be860393 revlog: speed up prefix matching against nodes
Bryan O'Sullivan <bryano@fb.com>
parents: 16533
diff changeset
  1464
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
  1465
        if id in self._pcache:
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
  1466
            return self._pcache[id]
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
  1467
37819
ee3d58b4a47f revlog: make pure version of _partialmatch() support 40-byte hex nodeids
Martin von Zweigbergk <martinvonz@google.com>
parents: 37767
diff changeset
  1468
        if len(id) <= 40:
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1469
            try:
3438
b17f9d3eda74 revlog.lookup tweaks
Matt Mackall <mpm@selenic.com>
parents: 3390
diff changeset
  1470
                # hex(node)[:...]
9029
0001e49f1c11 compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents: 8658
diff changeset
  1471
                l = len(id) // 2  # grab an even number of digits
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1472
                prefix = bin(id[: l * 2])
13259
3b616dfa4b17 revlog: do revlog node->rev mapping by scanning
Matt Mackall <mpm@selenic.com>
parents: 13258
diff changeset
  1473
                nl = [e[7] for e in self.index if e[7].startswith(prefix)]
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1474
                nl = [
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1475
                    n for n in nl if hex(n).startswith(id) and self.hasnode(n)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1476
                ]
39191
5517d62c1bcc revlog: fix pure version of _partialmatch() to include nullid
Martin von Zweigbergk <martinvonz@google.com>
parents: 39157
diff changeset
  1477
                if nullhex.startswith(id):
5517d62c1bcc revlog: fix pure version of _partialmatch() to include nullid
Martin von Zweigbergk <martinvonz@google.com>
parents: 39157
diff changeset
  1478
                    nl.append(nullid)
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
  1479
                if len(nl) > 0:
32684
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1480
                    if len(nl) == 1 and not maybewdir:
13258
c2661863f16f revlog: introduce a cache for partial lookups
Matt Mackall <mpm@selenic.com>
parents: 13254
diff changeset
  1481
                        self._pcache[id] = nl[0]
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
  1482
                        return nl[0]
39774
4a2466b2a434 revlog: drop some more error aliases (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39773
diff changeset
  1483
                    raise error.AmbiguousPrefixLookupError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1484
                        id, self.indexfile, _(b'ambiguous identifier')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1485
                    )
32684
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1486
                if maybewdir:
af854b1b36f8 revlog: add support for partial matching of wdir node id
Yuya Nishihara <yuya@tcha.org>
parents: 32659
diff changeset
  1487
                    raise error.WdirUnsupported
7365
ec3aafa84d44 lookup: speed up partial lookup
Matt Mackall <mpm@selenic.com>
parents: 7363
diff changeset
  1488
                return None
36238
f574cc00831a node: make bin() be a wrapper instead of just an alias
Augie Fackler <augie@google.com>
parents: 35974
diff changeset
  1489
            except TypeError:
3453
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1490
                pass
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1491
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1492
    def lookup(self, id):
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1493
        """locate a node based on:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1494
            - revision number or str(revision number)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1495
            - nodeid or subset of hex nodeid
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1496
        """
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1497
        n = self._match(id)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1498
        if n is not None:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1499
            return n
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1500
        n = self._partialmatch(id)
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1501
        if n:
dba3cadef789 Only look up tags and branches as a last resort
Matt Mackall <mpm@selenic.com>
parents: 3438
diff changeset
  1502
            return n
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
  1503
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1504
        raise error.LookupError(id, self.indexfile, _(b'no match found'))
36
da28286bf6b7 Add smart node lookup by substring or by rev number
mpm@selenic.com
parents: 26
diff changeset
  1505
37767
44d1959acb3b revlog: make shortest() take a full binary nodeid (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 37494
diff changeset
  1506
    def shortest(self, node, minlength=1):
44d1959acb3b revlog: make shortest() take a full binary nodeid (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 37494
diff changeset
  1507
        """Find the shortest unambiguous prefix that matches node."""
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1508
37863
6921d3ecadc1 shortest: rename "test" variable to "prefix"
Martin von Zweigbergk <martinvonz@google.com>
parents: 37862
diff changeset
  1509
        def isvalid(prefix):
34250
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1510
            try:
42629
24111fb9a725 lookup: don't use "00changelog.i@None" when lookup of prefix fails
Martin von Zweigbergk <martinvonz@google.com>
parents: 42567
diff changeset
  1511
                matchednode = self._partialmatch(prefix)
39831
7a9e2d85f475 revlog: catch more specific exception in shortest()
Yuya Nishihara <yuya@tcha.org>
parents: 39778
diff changeset
  1512
            except error.AmbiguousPrefixLookupError:
34250
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1513
                return False
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1514
            except error.WdirUnsupported:
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1515
                # single 'ff...' match
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1516
                return True
42629
24111fb9a725 lookup: don't use "00changelog.i@None" when lookup of prefix fails
Martin von Zweigbergk <martinvonz@google.com>
parents: 42567
diff changeset
  1517
            if matchednode is None:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1518
                raise error.LookupError(node, self.indexfile, _(b'no node'))
37970
76e933e0ccc9 shortest: remove unnecessary check for revnum in isvalid()
Martin von Zweigbergk <martinvonz@google.com>
parents: 37969
diff changeset
  1519
            return True
34250
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1520
37968
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1521
        def maybewdir(prefix):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1522
            return all(c == b'f' for c in pycompat.iterbytestr(prefix))
37968
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1523
37767
44d1959acb3b revlog: make shortest() take a full binary nodeid (API)
Martin von Zweigbergk <martinvonz@google.com>
parents: 37494
diff changeset
  1524
        hexnode = hex(node)
37968
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1525
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1526
        def disambiguate(hexnode, minlength):
37971
3ac950cd5978 shortest: move revnum-disambiguation out of revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 37970
diff changeset
  1527
            """Disambiguate against wdirid."""
45053
cc2572923ea3 revlog: avoid hard-coded hash sizes
Joerg Sonnenberger <joerg@bec.de>
parents: 44954
diff changeset
  1528
            for length in range(minlength, len(hexnode) + 1):
37968
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1529
                prefix = hexnode[:length]
37971
3ac950cd5978 shortest: move revnum-disambiguation out of revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 37970
diff changeset
  1530
                if not maybewdir(prefix):
37968
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1531
                    return prefix
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1532
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1533
        if not getattr(self, 'filteredrevs', None):
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1534
            try:
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1535
                length = max(self.index.shortest(node), minlength)
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1536
                return disambiguate(hexnode, length)
39773
2cd93a8d4bde revlog: drop RevlogError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39769
diff changeset
  1537
            except error.RevlogError:
37969
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1538
                if node != wdirid:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1539
                    raise error.LookupError(node, self.indexfile, _(b'no node'))
37968
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1540
            except AttributeError:
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1541
                # Fall through to pure code
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1542
                pass
0304f22497fa revlog: use node tree (native code) for shortest() calculation
Martin von Zweigbergk <martinvonz@google.com>
parents: 37865
diff changeset
  1543
37969
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1544
        if node == wdirid:
45053
cc2572923ea3 revlog: avoid hard-coded hash sizes
Joerg Sonnenberger <joerg@bec.de>
parents: 44954
diff changeset
  1545
            for length in range(minlength, len(hexnode) + 1):
37969
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1546
                prefix = hexnode[:length]
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1547
                if isvalid(prefix):
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1548
                    return prefix
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1549
45053
cc2572923ea3 revlog: avoid hard-coded hash sizes
Joerg Sonnenberger <joerg@bec.de>
parents: 44954
diff changeset
  1550
        for length in range(minlength, len(hexnode) + 1):
37863
6921d3ecadc1 shortest: rename "test" variable to "prefix"
Martin von Zweigbergk <martinvonz@google.com>
parents: 37862
diff changeset
  1551
            prefix = hexnode[:length]
6921d3ecadc1 shortest: rename "test" variable to "prefix"
Martin von Zweigbergk <martinvonz@google.com>
parents: 37862
diff changeset
  1552
            if isvalid(prefix):
37969
0db7fe7c34d3 shortest: make pure code also disambigute against revnums at end
Martin von Zweigbergk <martinvonz@google.com>
parents: 37968
diff changeset
  1553
                return disambiguate(hexnode, length)
34250
448725a2ef73 templater: extract shortest() logic from template function
Martin von Zweigbergk <martinvonz@google.com>
parents: 34148
diff changeset
  1554
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
  1555
    def cmp(self, node, text):
11539
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
  1556
        """compare text with a given file revision
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
  1557
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
  1558
        returns True if text is different than what is stored.
a463e3c50212 cmp: document the fact that we return True if content is different
Nicolas Dumazet <nicdumz.commits@gmail.com>
parents: 11323
diff changeset
  1559
        """
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
  1560
        p1, p2 = self.parents(node)
39877
f8eb71f9e3bd storageutil: new module for storage primitives (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39872
diff changeset
  1561
        return storageutil.hashrevisionsha1(text, p1, p2) != node
2890
5df3e5cf16bc Move cmp bits from filelog to revlog
Matt Mackall <mpm@selenic.com>
parents: 2859
diff changeset
  1562
32227
1395f843ece4 revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31856
diff changeset
  1563
    def _cachesegment(self, offset, data):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1564
        """Add a segment to the revlog cache.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1565
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1566
        Accepts an absolute offset and the data that is at that location.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1567
        """
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1568
        o, d = self._chunkcache
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1569
        # try to add to existing cache
13253
61c9bc3da402 revlog: remove lazy index
Matt Mackall <mpm@selenic.com>
parents: 13239
diff changeset
  1570
        if o + len(d) == offset and len(d) + len(data) < _chunksize:
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1571
            self._chunkcache = o, d + data
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1572
        else:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1573
            self._chunkcache = offset, data
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1574
32227
1395f843ece4 revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31856
diff changeset
  1575
    def _readsegment(self, offset, length, df=None):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1576
        """Load a segment of raw data from the revlog.
26377
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1577
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1578
        Accepts an absolute offset, length to read, and an optional existing
26377
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1579
        file handle to read from.
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1580
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1581
        If an existing file handle is passed, it will be seeked and the
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1582
        original seek position will NOT be restored.
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1583
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1584
        Returns a str or buffer of raw byte data.
40626
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1585
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1586
        Raises if the requested number of bytes could not be read.
26377
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1587
        """
20179
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
  1588
        # Cache data both forward and backward around the requested
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
  1589
        # data, in a fixed size window. This helps speed up operations
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
  1590
        # involving reading the revlog backwards.
20180
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
  1591
        cachesize = self._chunkcachesize
969148b49fc6 revlog: allow tuning of the chunk cache size (via format.chunkcachesize)
Brodie Rao <brodie@sf.io>
parents: 20179
diff changeset
  1592
        realoffset = offset & ~(cachesize - 1)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1593
        reallength = (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1594
            (offset + length + cachesize) & ~(cachesize - 1)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1595
        ) - realoffset
35973
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
  1596
        with self._datareadfp(df) as df:
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
  1597
            df.seek(realoffset)
4d66993bdcff revlog: add a _datareadfp context manager for data access needs
Boris Feld <boris.feld@octobus.net>
parents: 35972
diff changeset
  1598
            d = df.read(reallength)
40626
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1599
32227
1395f843ece4 revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31856
diff changeset
  1600
        self._cachesegment(realoffset, d)
20179
5bb3826bdac4 revlog: read/cache chunks in fixed windows of 64 KB
Brodie Rao <brodie@sf.io>
parents: 20074
diff changeset
  1601
        if offset != realoffset or reallength != length:
40626
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1602
            startoffset = offset - realoffset
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1603
            if len(d) - startoffset < length:
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1604
                raise error.RevlogError(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1605
                    _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1606
                        b'partial read of revlog %s; expected %d bytes from '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1607
                        b'offset %d, got %d'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1608
                    )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1609
                    % (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1610
                        self.indexfile if self._inline else self.datafile,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1611
                        length,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1612
                        realoffset,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1613
                        len(d) - startoffset,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1614
                    )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1615
                )
40626
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1616
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1617
            return util.buffer(d, startoffset, length)
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1618
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1619
        if len(d) < length:
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1620
            raise error.RevlogError(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1621
                _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1622
                    b'partial read of revlog %s; expected %d bytes from offset '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1623
                    b'%d, got %d'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1624
                )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1625
                % (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1626
                    self.indexfile if self._inline else self.datafile,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1627
                    length,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1628
                    offset,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1629
                    len(d),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1630
                )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1631
            )
40626
87a872555e90 revlog: detect incomplete revlog reads
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40625
diff changeset
  1632
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1633
        return d
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1634
32227
1395f843ece4 revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31856
diff changeset
  1635
    def _getsegment(self, offset, length, df=None):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1636
        """Obtain a segment of raw data from the revlog.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1637
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1638
        Accepts an absolute offset, length of bytes to obtain, and an
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1639
        optional file handle to the already-opened revlog. If the file
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1640
        handle is used, it's original seek position will not be preserved.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1641
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1642
        Requests for data may be returned from a cache.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1643
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1644
        Returns a str or a buffer instance of raw byte data.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1645
        """
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1646
        o, d = self._chunkcache
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1647
        l = len(d)
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1648
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1649
        # is it in the cache?
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1650
        cachestart = offset - o
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1651
        cacheend = cachestart + length
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1652
        if cachestart >= 0 and cacheend <= l:
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1653
            if cachestart == 0 and cacheend == l:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1654
                return d  # avoid a copy
16423
a150923b49ba revlog: avoid an expensive string copy
Bryan O'Sullivan <bryano@fb.com>
parents: 16418
diff changeset
  1655
            return util.buffer(d, cachestart, cacheend - cachestart)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1656
32227
1395f843ece4 revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31856
diff changeset
  1657
        return self._readsegment(offset, length, df=df)
8316
d593922cf480 revlog: clean up the chunk caching code
Matt Mackall <mpm@selenic.com>
parents: 8315
diff changeset
  1658
32229
75e93d95aae6 revlog: rename _chunkraw to _getsegmentforrevs()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32227
diff changeset
  1659
    def _getsegmentforrevs(self, startrev, endrev, df=None):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1660
        """Obtain a segment of raw data corresponding to a range of revisions.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1661
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1662
        Accepts the start and end revisions and an optional already-open
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1663
        file handle to be used for reading. If the file handle is read, its
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1664
        seek position will not be preserved.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1665
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1666
        Requests for data may be satisfied by a cache.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1667
27649
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1668
        Returns a 2-tuple of (offset, data) for the requested range of
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1669
        revisions. Offset is the integer offset from the beginning of the
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1670
        revlog and data is a str or buffer of the raw byte data.
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1671
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1672
        Callers will need to call ``self.start(rev)`` and ``self.length(rev)``
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1673
        to determine where each revision's data begins and ends.
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1674
        """
30288
ceddc3d94d74 revlog: inline start() and end() for perf reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30287
diff changeset
  1675
        # Inlined self.start(startrev) & self.end(endrev) for perf reasons
ceddc3d94d74 revlog: inline start() and end() for perf reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30287
diff changeset
  1676
        # (functions are expensive).
ceddc3d94d74 revlog: inline start() and end() for perf reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30287
diff changeset
  1677
        index = self.index
ceddc3d94d74 revlog: inline start() and end() for perf reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30287
diff changeset
  1678
        istart = index[startrev]
ceddc3d94d74 revlog: inline start() and end() for perf reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30287
diff changeset
  1679
        start = int(istart[0] >> 16)
30289
1f92056c4066 revlog: optimize _chunkraw when startrev==endrev
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30288
diff changeset
  1680
        if startrev == endrev:
1f92056c4066 revlog: optimize _chunkraw when startrev==endrev
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30288
diff changeset
  1681
            end = start + istart[1]
1f92056c4066 revlog: optimize _chunkraw when startrev==endrev
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30288
diff changeset
  1682
        else:
1f92056c4066 revlog: optimize _chunkraw when startrev==endrev
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30288
diff changeset
  1683
            iend = index[endrev]
1f92056c4066 revlog: optimize _chunkraw when startrev==endrev
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30288
diff changeset
  1684
            end = int(iend[0] >> 16) + iend[1]
30288
ceddc3d94d74 revlog: inline start() and end() for perf reasons
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30287
diff changeset
  1685
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
  1686
        if self._inline:
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
  1687
            start += (startrev + 1) * self._io.size
19714
0e07c0b5fb1c revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents: 19713
diff changeset
  1688
            end += (endrev + 1) * self._io.size
0e07c0b5fb1c revlog.revision: fix cache preload for inline revlogs
Siddharth Agarwal <sid0@fb.com>
parents: 19713
diff changeset
  1689
        length = end - start
27649
6446e9b37c8b revlog: return offset from _chunkraw()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 27637
diff changeset
  1690
32227
1395f843ece4 revlog: rename internal functions containing "chunk" to use "segment"
Gregory Szorc <gregory.szorc@gmail.com>
parents: 31856
diff changeset
  1691
        return start, self._getsegment(start, length, df=df)
8318
6b8513f8274a revlog: add cache priming for reconstructing delta chains
Matt Mackall <mpm@selenic.com>
parents: 8317
diff changeset
  1692
26377
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1693
    def _chunk(self, rev, df=None):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1694
        """Obtain a single decompressed chunk for a revision.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1695
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1696
        Accepts an integer revision and an optional already-open file handle
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1697
        to be used for reading. If used, the seek position of the file will not
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1698
        be preserved.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1699
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1700
        Returns a str holding uncompressed data for the requested revision.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1701
        """
32229
75e93d95aae6 revlog: rename _chunkraw to _getsegmentforrevs()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 32227
diff changeset
  1702
        return self.decompress(self._getsegmentforrevs(rev, rev, df=df)[1])
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
  1703
38644
43d0619cec90 revlog: enforce chunk slicing down to a certain size
Boris Feld <boris.feld@octobus.net>
parents: 38643
diff changeset
  1704
    def _chunks(self, revs, df=None, targetsize=None):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1705
        """Obtain decompressed chunks for the specified revisions.
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1706
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1707
        Accepts an iterable of numeric revisions that are assumed to be in
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1708
        ascending order. Also accepts an optional already-open file handle
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1709
        to be used for reading. If used, the seek position of the file will
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1710
        not be preserved.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1711
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1712
        This function is similar to calling ``self._chunk()`` multiple times,
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1713
        but is faster.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1714
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1715
        Returns a list with decompressed data for each requested revision.
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1716
        """
19716
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
  1717
        if not revs:
e17976978ee4 revlog: move chunk cache preload from revision to _chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19715
diff changeset
  1718
            return []
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1719
        start = self.start
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1720
        length = self.length
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1721
        inline = self._inline
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1722
        iosize = self._io.size
19715
1aab406be57c revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents: 19714
diff changeset
  1723
        buffer = util.buffer
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1724
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1725
        l = []
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1726
        ladd = l.append
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1727
34824
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1728
        if not self._withsparseread:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1729
            slicedchunks = (revs,)
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1730
        else:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1731
            slicedchunks = deltautil.slicechunk(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1732
                self, revs, targetsize=targetsize
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1733
            )
34824
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1734
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1735
        for revschunk in slicedchunks:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1736
            firstrev = revschunk[0]
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1737
            # Skip trailing revisions with empty diff
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1738
            for lastrev in revschunk[::-1]:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1739
                if length(lastrev) != 0:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1740
                    break
34823
7891d243d821 revlog: ignore empty trailing chunks when reading segments
Paul Morelle <paul.morelle@octobus.net>
parents: 34296
diff changeset
  1741
34824
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1742
            try:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1743
                offset, data = self._getsegmentforrevs(firstrev, lastrev, df=df)
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1744
            except OverflowError:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1745
                # issue4215 - we can't cache a run of chunks greater than
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1746
                # 2G on Windows
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1747
                return [self._chunk(rev, df=df) for rev in revschunk]
19715
1aab406be57c revlog._chunks: inline getchunk
Siddharth Agarwal <sid0@fb.com>
parents: 19714
diff changeset
  1748
34824
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1749
            decomp = self.decompress
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1750
            for rev in revschunk:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1751
                chunkstart = start(rev)
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1752
                if inline:
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1753
                    chunkstart += (rev + 1) * iosize
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1754
                chunklength = length(rev)
e2ad93bcc084 revlog: introduce an experimental flag to slice chunks reads when too sparse
Paul Morelle <paul.morelle@octobus.net>
parents: 34823
diff changeset
  1755
                ladd(decomp(buffer(data, chunkstart - offset, chunklength)))
19713
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1756
c2e27e57d250 revlog: add a fast method for getting a list of chunks
Siddharth Agarwal <sid0@fb.com>
parents: 19625
diff changeset
  1757
        return l
14075
bc101902a68d revlog: introduce _chunkbase to allow filelog to override
Sune Foldager <cryo@cyanite.org>
parents: 14064
diff changeset
  1758
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
  1759
    def _chunkclear(self):
27070
7860366b46c9 revlog: improve documentation
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26907
diff changeset
  1760
        """Clear the raw chunk cache."""
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1761
        self._chunkcache = (0, b'')
1598
14d1f1868bf6 cleanup of revlog.group when repository is local
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1559
diff changeset
  1762
11929
1839a7518b0d revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11928
diff changeset
  1763
    def deltaparent(self, rev):
14195
0013d3eeb826 revlog: remove support for parentdelta
Sune Foldager <cryo@cyanite.org>
parents: 14164
diff changeset
  1764
        """return deltaparent of the given revision"""
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
  1765
        base = self.index[rev][3]
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
  1766
        if base == rev:
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
  1767
            return nullrev
14253
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
  1768
        elif self._generaldelta:
c28d5200374c revlog: support reading generaldelta revlogs
Sune Foldager <cryo@cyanite.org>
parents: 14252
diff changeset
  1769
            return base
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
  1770
        else:
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
  1771
            return rev - 1
11929
1839a7518b0d revlog: deltachain() returns chain of revs need to construct a revision
Pradeepkumar Gayam <in3xes@gmail.com>
parents: 11928
diff changeset
  1772
39149
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1773
    def issnapshot(self, rev):
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1774
        """tells whether rev is a snapshot
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1775
        """
41086
a28833d79aca revlog: use the native implementation of issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41084
diff changeset
  1776
        if not self._sparserevlog:
a28833d79aca revlog: use the native implementation of issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41084
diff changeset
  1777
            return self.deltaparent(rev) == nullrev
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1778
        elif util.safehasattr(self.index, b'issnapshot'):
41086
a28833d79aca revlog: use the native implementation of issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41084
diff changeset
  1779
            # directly assign the method to cache the testing and access
a28833d79aca revlog: use the native implementation of issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41084
diff changeset
  1780
            self.issnapshot = self.index.issnapshot
a28833d79aca revlog: use the native implementation of issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41084
diff changeset
  1781
            return self.issnapshot(rev)
39149
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1782
        if rev == nullrev:
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1783
            return True
41084
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1784
        entry = self.index[rev]
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1785
        base = entry[3]
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1786
        if base == rev:
39149
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1787
            return True
41084
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1788
        if base == nullrev:
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1789
            return True
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1790
        p1 = entry[5]
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1791
        p2 = entry[6]
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1792
        if base == p1 or base == p2:
39150
f39efa885a6d revlog: also detect intermediate snapshots
Paul Morelle <paul.morelle@octobus.net>
parents: 39149
diff changeset
  1793
            return False
41084
84491ae0b3f0 revlog: more efficient implementation for issnapshot
Boris Feld <boris.feld@octobus.net>
parents: 41083
diff changeset
  1794
        return self.issnapshot(base)
39149
f8db458651c8 revlog: add a method to tells whether rev is stored as a snapshot
Paul Morelle <paul.morelle@octobus.net>
parents: 39147
diff changeset
  1795
39152
3b1042cab4b4 revlog: add a method to retrieve snapshot depth
Boris Feld <boris.feld@octobus.net>
parents: 39150
diff changeset
  1796
    def snapshotdepth(self, rev):
3b1042cab4b4 revlog: add a method to retrieve snapshot depth
Boris Feld <boris.feld@octobus.net>
parents: 39150
diff changeset
  1797
        """number of snapshot in the chain before this one"""
3b1042cab4b4 revlog: add a method to retrieve snapshot depth
Boris Feld <boris.feld@octobus.net>
parents: 39150
diff changeset
  1798
        if not self.issnapshot(rev):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1799
            raise error.ProgrammingError(b'revision %d not a snapshot')
39152
3b1042cab4b4 revlog: add a method to retrieve snapshot depth
Boris Feld <boris.feld@octobus.net>
parents: 39150
diff changeset
  1800
        return len(self._deltachain(rev)[0]) - 1
3b1042cab4b4 revlog: add a method to retrieve snapshot depth
Boris Feld <boris.feld@octobus.net>
parents: 39150
diff changeset
  1801
1941
7518823709a2 revlog.py: factorization and fixes for rev < 0 (nullid)
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 1853
diff changeset
  1802
    def revdiff(self, rev1, rev2):
31753
5d11b5edcb0b revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents: 31752
diff changeset
  1803
        """return or calculate a delta between two revisions
5d11b5edcb0b revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents: 31752
diff changeset
  1804
5d11b5edcb0b revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents: 31752
diff changeset
  1805
        The delta calculated is in binary form and is intended to be written to
5d11b5edcb0b revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents: 31752
diff changeset
  1806
        revlog data directly. So this function needs raw revision data.
5d11b5edcb0b revlog: use raw revisions in revdiff
Jun Wu <quark@fb.com>
parents: 31752
diff changeset
  1807
        """
14208
d62d597b8974 revlog: compute correct deltaparent in the deltaparent function
Sune Foldager <cryo@cyanite.org>
parents: 14196
diff changeset
  1808
        if rev1 != nullrev and self.deltaparent(rev2) == rev1:
31369
b6f5af372c0c revlog: use bytes() instead of str() to get data from memoryview
Augie Fackler <augie@google.com>
parents: 31357
diff changeset
  1809
            return bytes(self._chunk(rev2))
5005
72082bfced9a revlog: minor revdiff reorganization
Matt Mackall <mpm@selenic.com>
parents: 5004
diff changeset
  1810
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1811
        return mdiff.textdiff(self.rawdata(rev1), self.rawdata(rev2))
119
c7a66f9752a4 Add code to retrieve or construct a revlog delta
mpm@selenic.com
parents: 117
diff changeset
  1812
42993
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1813
    def _processflags(self, text, flags, operation, raw=False):
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1814
        """deprecated entry point to access flag processors"""
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1815
        msg = b'_processflag(...) use the specialized variant'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1816
        util.nouideprecwarn(msg, b'5.2', stacklevel=2)
42993
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1817
        if raw:
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1818
            return text, flagutil.processflagsraw(self, text, flags)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1819
        elif operation == b'read':
42993
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1820
            return flagutil.processflagsread(self, text, flags)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1821
        else:  # write operation
42993
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1822
            return flagutil.processflagswrite(self, text, flags)
01304095256c flagprocessors: directly duplicate the deprecated layer back into revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42992
diff changeset
  1823
30743
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  1824
    def revision(self, nodeorrev, _df=None, raw=False):
16435
df347129305d revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents: 16424
diff changeset
  1825
        """return an uncompressed revision of a given node or revision
df347129305d revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents: 16424
diff changeset
  1826
        number.
26377
dfef0d3be65e revlog: support using an existing file handle when reading revlogs
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26376
diff changeset
  1827
30743
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  1828
        _df - an existing file handle to read from. (internal-only)
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  1829
        raw - an optional argument specifying if the revision data is to be
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  1830
        treated as raw data when applying flag transforms. 'raw' should be set
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  1831
        to True when generating changegroups or in debug commands.
16435
df347129305d revlog: fix partial revision() docstring (from d7d64b89a65c)
Patrick Mezard <patrick@mezard.eu>
parents: 16424
diff changeset
  1832
        """
42845
f75f47b3ea41 revlog: deprecate the use of `revision(..., raw=True)`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42814
diff changeset
  1833
        if raw:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1834
            msg = (
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1835
                b'revlog.revision(..., raw=True) is deprecated, '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1836
                b'use revlog.rawdata(...)'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1837
            )
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1838
            util.nouideprecwarn(msg, b'5.2', stacklevel=2)
42981
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1839
        return self._revisiondata(nodeorrev, _df, raw=raw)[0]
42718
389233789952 revlog: split a `_revisiondata` method to file `revision` job
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42688
diff changeset
  1840
42980
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1841
    def sidedata(self, nodeorrev, _df=None):
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1842
        """a map of extra data related to the changeset but not part of the hash
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1843
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1844
        This function currently return a dictionary. However, more advanced
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1845
        mapping object will likely be used in the future for a more
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1846
        efficient/lazy code.
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1847
        """
42982
9d62f9fa332f revlog: use the new sidedata map return in the sidedata method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42981
diff changeset
  1848
        return self._revisiondata(nodeorrev, _df)[1]
42980
0d1272783f24 revlog: introduce a `sidedata` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42879
diff changeset
  1849
42718
389233789952 revlog: split a `_revisiondata` method to file `revision` job
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42688
diff changeset
  1850
    def _revisiondata(self, nodeorrev, _df=None, raw=False):
42790
616aa62e5027 revlog: add some documentation to `_revisiondata` code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42789
diff changeset
  1851
        # deal with <nodeorrev> argument type
16375
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1852
        if isinstance(nodeorrev, int):
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1853
            rev = nodeorrev
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1854
            node = self.node(rev)
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1855
        else:
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1856
            node = nodeorrev
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1857
            rev = None
d7d64b89a65c revlog: allow retrieving contents by revision number
Matt Mackall <mpm@selenic.com>
parents: 16374
diff changeset
  1858
42790
616aa62e5027 revlog: add some documentation to `_revisiondata` code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42789
diff changeset
  1859
        # fast path the special `nullid` rev
42789
bf070a59546a revlog: move `nullid` early return sooner in `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42788
diff changeset
  1860
        if node == nullid:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1861
            return b"", {}
42789
bf070a59546a revlog: move `nullid` early return sooner in `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42788
diff changeset
  1862
43979
bdb357161d7a revlog: drop an unused variable assignment
Matt Harbison <matt_harbison@yahoo.com>
parents: 43957
diff changeset
  1863
        # ``rawtext`` is the text as stored inside the revlog. Might be the
bdb357161d7a revlog: drop an unused variable assignment
Matt Harbison <matt_harbison@yahoo.com>
parents: 43957
diff changeset
  1864
        # revision or might need to be processed to retrieve the revision.
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1865
        rev, rawtext, validated = self._rawtext(node, rev, _df=_df)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1866
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1867
        if raw and validated:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1868
            # if we don't want to process the raw text and that raw
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1869
            # text is cached, we can exit early.
42981
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1870
            return rawtext, {}
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1871
        if rev is None:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1872
            rev = self.rev(node)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1873
        # the revlog's flag for this revision
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1874
        # (usually alter its state or content)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1875
        flags = self.flags(rev)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1876
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1877
        if validated and flags == REVIDX_DEFAULT_FLAGS:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1878
            # no extra flags set, no flag processor runs, text = rawtext
42981
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1879
            return rawtext, {}
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1880
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1881
        sidedata = {}
42879
4a3efe0febb5 revlog: stop using `_processflags` directly
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42876
diff changeset
  1882
        if raw:
42992
dff95420480f flagprocessors: make `processflagsraw` a module level function
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42991
diff changeset
  1883
            validatehash = flagutil.processflagsraw(self, rawtext, flags)
42879
4a3efe0febb5 revlog: stop using `_processflags` directly
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42876
diff changeset
  1884
            text = rawtext
4a3efe0febb5 revlog: stop using `_processflags` directly
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42876
diff changeset
  1885
        else:
43034
294afb982a88 sidedata: add a function to read sidedata from revlog raw text
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43030
diff changeset
  1886
            try:
294afb982a88 sidedata: add a function to read sidedata from revlog raw text
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43030
diff changeset
  1887
                r = flagutil.processflagsread(self, rawtext, flags)
294afb982a88 sidedata: add a function to read sidedata from revlog raw text
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43030
diff changeset
  1888
            except error.SidedataHashError as exc:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1889
                msg = _(b"integrity check failed on %s:%s sidedata key %d")
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1890
                msg %= (self.indexfile, pycompat.bytestr(rev), exc.sidedatakey)
43034
294afb982a88 sidedata: add a function to read sidedata from revlog raw text
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43030
diff changeset
  1891
                raise error.RevlogError(msg)
42983
a45d670c2bfc flagprocessors: return sidedata map in `_processflagsread`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42982
diff changeset
  1892
            text, validatehash, sidedata = r
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1893
        if validatehash:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1894
            self.checkhash(text, node, rev=rev)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1895
        if not validated:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1896
            self._revisioncache = (node, rev, rawtext)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1897
42981
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1898
        return text, sidedata
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1899
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1900
    def _rawtext(self, node, rev, _df=None):
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1901
        """return the possibly unvalidated rawtext for a revision
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1902
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1903
        returns (rev, rawtext, validated)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1904
        """
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1905
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1906
        # revision in the cache (could be useful to apply delta)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1907
        cachedrev = None
42790
616aa62e5027 revlog: add some documentation to `_revisiondata` code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42789
diff changeset
  1908
        # An intermediate text to apply deltas to
42788
2eec53a99ec1 revlog: stop calling `basetext` `rawtext` in _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42787
diff changeset
  1909
        basetext = None
42790
616aa62e5027 revlog: add some documentation to `_revisiondata` code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42789
diff changeset
  1910
616aa62e5027 revlog: add some documentation to `_revisiondata` code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42789
diff changeset
  1911
        # Check if we have the entry in cache
616aa62e5027 revlog: add some documentation to `_revisiondata` code
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42789
diff changeset
  1912
        # The cache entry looks like (node, rev, rawtext)
40052
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
  1913
        if self._revisioncache:
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
  1914
            if self._revisioncache[0] == node:
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1915
                return (rev, self._revisioncache[2], True)
40052
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
  1916
            cachedrev = self._revisioncache[1]
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1917
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1918
        if rev is None:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1919
            rev = self.rev(node)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1920
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1921
        chain, stopped = self._deltachain(rev, stoprev=cachedrev)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1922
        if stopped:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1923
            basetext = self._revisioncache[2]
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1924
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1925
        # drop cache to save memory, the caller is expected to
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1926
        # update self._revisioncache after validating the text
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1927
        self._revisioncache = None
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1928
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1929
        targetsize = None
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1930
        rawsize = self.index[rev][2]
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1931
        if 0 <= rawsize:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1932
            targetsize = 4 * rawsize
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1933
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1934
        bins = self._chunks(chain, df=_df, targetsize=targetsize)
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1935
        if basetext is None:
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1936
            basetext = bytes(bins[0])
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1937
            bins = bins[1:]
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1938
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1939
        rawtext = mdiff.patches(basetext, bins)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1940
        del basetext  # let us have a chance to free memory early
42792
e91411fcc697 revlog: split `rawtext` retrieval out of _revisiondata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42791
diff changeset
  1941
        return (rev, rawtext, False)
13239
12ed25f39d0b revlog: break hash checking into subfunction
Matt Mackall <mpm@selenic.com>
parents: 13031
diff changeset
  1942
42786
ef177c04ac7f revlog: drop silly `raw` parameter to `rawdata` function
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42768
diff changeset
  1943
    def rawdata(self, nodeorrev, _df=None):
42719
415e4136d326 rawdata: introduce a `rawdata` method on revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42718
diff changeset
  1944
        """return an uncompressed raw data of a given node or revision number.
415e4136d326 rawdata: introduce a `rawdata` method on revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42718
diff changeset
  1945
415e4136d326 rawdata: introduce a `rawdata` method on revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42718
diff changeset
  1946
        _df - an existing file handle to read from. (internal-only)
415e4136d326 rawdata: introduce a `rawdata` method on revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42718
diff changeset
  1947
        """
42981
35ab2c1a58aa revlog: return sidedata map from `_revisiondata`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42980
diff changeset
  1948
        return self._revisiondata(nodeorrev, _df, raw=True)[0]
42719
415e4136d326 rawdata: introduce a `rawdata` method on revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42718
diff changeset
  1949
22785
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1950
    def hash(self, text, p1, p2):
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1951
        """Compute a node hash.
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1952
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1953
        Available as a function so that subclasses can replace the hash
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1954
        as needed.
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1955
        """
39877
f8eb71f9e3bd storageutil: new module for storage primitives (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39872
diff changeset
  1956
        return storageutil.hashrevisionsha1(text, p1, p2)
22785
abc44fcc9c57 revlog: move references to revlog.hash to inside the revlog class
Augie Fackler <raf@durin42.com>
parents: 22784
diff changeset
  1957
30584
be5b2098a817 revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents: 30543
diff changeset
  1958
    def checkhash(self, text, node, p1=None, p2=None, rev=None):
be5b2098a817 revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents: 30543
diff changeset
  1959
        """Check node hash integrity.
19624
55749cb14d24 revlog: extract 'checkhash' method
Wojciech Lopata <lopek@fb.com>
parents: 19471
diff changeset
  1960
30584
be5b2098a817 revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents: 30543
diff changeset
  1961
        Available as a function so that subclasses can extend hash mismatch
be5b2098a817 revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents: 30543
diff changeset
  1962
        behaviors as needed.
be5b2098a817 revlog: merge hash checking subfunctions
Remi Chaintron <remi@fb.com>
parents: 30543
diff changeset
  1963
        """
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1964
        try:
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1965
            if p1 is None and p2 is None:
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1966
                p1, p2 = self.parents(node)
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1967
            if node != self.hash(text, p1, p2):
40054
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1968
                # Clear the revision cache on hash failure. The revision cache
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1969
                # only stores the raw revision and clearing the cache does have
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1970
                # the side-effect that we won't have a cache hit when the raw
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1971
                # revision data is accessed. But this case should be rare and
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1972
                # it is extra work to teach the cache about the hash
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1973
                # verification state.
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1974
                if self._revisioncache and self._revisioncache[0] == node:
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1975
                    self._revisioncache = None
801ccd8e67c0 revlog: clear revision cache on hash verification failure
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40052
diff changeset
  1976
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1977
                revornode = rev
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1978
                if revornode is None:
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1979
                    revornode = templatefilters.short(hex(node))
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1980
                raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  1981
                    _(b"integrity check failed on %s:%s")
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1982
                    % (self.indexfile, pycompat.bytestr(revornode))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1983
                )
39773
2cd93a8d4bde revlog: drop RevlogError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39769
diff changeset
  1984
        except error.RevlogError:
39879
d269ddbf54f0 storageutil: move _censoredtext() from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39878
diff changeset
  1985
            if self._censorable and storageutil.iscensoredtext(text):
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1986
                raise error.CensoredNodeError(self.indexfile, node, text)
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  1987
            raise
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  1988
35974
9ba1d0c724e2 revlog: rename 'self.checkinlinesize' into '_enforceinlinesize'
Boris Feld <boris.feld@octobus.net>
parents: 35973
diff changeset
  1989
    def _enforceinlinesize(self, tr, fp=None):
26376
344a1621674b revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26243
diff changeset
  1990
        """Check if the revlog is too big for inline and convert if so.
344a1621674b revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26243
diff changeset
  1991
344a1621674b revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26243
diff changeset
  1992
        This should be called after revisions are added to the revlog. If the
344a1621674b revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26243
diff changeset
  1993
        revlog has grown too large to be an inline revlog, it will convert it
344a1621674b revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26243
diff changeset
  1994
        to use multiple index and data files.
344a1621674b revlog: add docstring for checkinlinesize()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26243
diff changeset
  1995
        """
38844
119d14f41cb2 revlog: remove some knowledge of sentinel nullid in index
Martin von Zweigbergk <martinvonz@google.com>
parents: 38841
diff changeset
  1996
        tiprev = len(self) - 1
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1997
        if (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1998
            not self._inline
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  1999
            or (self.start(tiprev) + self.length(tiprev)) < _maxinline
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2000
        ):
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2001
            return
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
  2002
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
  2003
        trinfo = tr.find(self.indexfile)
8527
f9a80054dd3c use 'x is None' instead of 'x == None'
Martin Geisler <mg@lazybytes.net>
parents: 8464
diff changeset
  2004
        if trinfo is None:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2005
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2006
                _(b"%s not found in the transaction") % self.indexfile
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2007
            )
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
  2008
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
  2009
        trindex = trinfo[2]
24454
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
  2010
        if trindex is not None:
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
  2011
            dataoff = self.start(trindex)
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
  2012
        else:
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
  2013
            # revlog was stripped at start of transaction, use all leftover data
59904edf0a5e revlog: make converting from inline to non-line work after a strip
Mike Edgar <adgar@google.com>
parents: 24444
diff changeset
  2014
            trindex = len(self) - 1
38844
119d14f41cb2 revlog: remove some knowledge of sentinel nullid in index
Martin von Zweigbergk <martinvonz@google.com>
parents: 38841
diff changeset
  2015
            dataoff = self.end(tiprev)
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
  2016
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
  2017
        tr.add(self.datafile, dataoff)
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
  2018
8317
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
  2019
        if fp:
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
  2020
            fp.flush()
5cdf4067857a revlog: use chunk cache to avoid rereading when splitting inline files
Matt Mackall <mpm@selenic.com>
parents: 8316
diff changeset
  2021
            fp.close()
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2022
            # We can't use the cached file handle after close(). So prevent
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2023
            # its usage.
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2024
            self._writinghandles = None
8315
c8493310ad9b revlog: use index to find index size
Matt Mackall <mpm@selenic.com>
parents: 8314
diff changeset
  2025
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2026
        with self._indexfp(b'r') as ifh, self._datafp(b'w') as dfh:
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2027
            for r in self:
40625
39369475445c revlog: use single file handle when de-inlining revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40460
diff changeset
  2028
                dfh.write(self._getsegmentforrevs(r, r, df=ifh)[1])
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2029
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2030
        with self._indexfp(b'w') as fp:
35971
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2031
            self.version &= ~FLAG_INLINE_DATA
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2032
            self._inline = False
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2033
            io = self._io
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2034
            for i in self:
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2035
                e = io.packentry(self.index[i], self.node, self.version, i)
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2036
                fp.write(e)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2037
35971
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2038
            # the temp file replace the real index when we exit the context
0f2c51afafb2 revlog: use context manager for index file lifetime in checkinlinesize
Boris Feld <boris.feld@octobus.net>
parents: 35970
diff changeset
  2039
            # manager
2084
Chris Mason <mason@suse.com>
parents: 2082
diff changeset
  2040
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
  2041
        tr.replace(self.indexfile, trindex * self._io.size)
44310
daad3aace942 nodemap: only use persistent nodemap for non-inlined revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44308
diff changeset
  2042
        nodemaputil.setup_persistent_nodemap(tr, self)
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
  2043
        self._chunkclear()
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2044
39886
debc4ee597e7 revlog: add a callback "tracking" duplicate node addition
Boris Feld <boris.feld@octobus.net>
parents: 39881
diff changeset
  2045
    def _nodeduplicatecallback(self, transaction, node):
debc4ee597e7 revlog: add a callback "tracking" duplicate node addition
Boris Feld <boris.feld@octobus.net>
parents: 39881
diff changeset
  2046
        """called when trying to add a node already stored.
debc4ee597e7 revlog: add a callback "tracking" duplicate node addition
Boris Feld <boris.feld@octobus.net>
parents: 39881
diff changeset
  2047
        """
debc4ee597e7 revlog: add a callback "tracking" duplicate node addition
Boris Feld <boris.feld@octobus.net>
parents: 39881
diff changeset
  2048
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2049
    def addrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2050
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2051
        text,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2052
        transaction,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2053
        link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2054
        p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2055
        p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2056
        cachedelta=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2057
        node=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2058
        flags=REVIDX_DEFAULT_FLAGS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2059
        deltacomputer=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2060
        sidedata=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2061
    ):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2062
        """add a revision to the log
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2063
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2064
        text - the revision data to add
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2065
        transaction - the transaction object used for rollback
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2066
        link - the linkrev data to add
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2067
        p1, p2 - the parent nodeids of the revision
12012
bade7a9c5c07 revlog: fix docstring
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12011
diff changeset
  2068
        cachedelta - an optional precomputed delta
19625
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
  2069
        node - nodeid of revision; typically node is not specified, and it is
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
  2070
            computed by default as hash(text, p1, p2), however subclasses might
6a411a06cb1f revlog: pass node as an argument of addrevision
Wojciech Lopata <lopek@fb.com>
parents: 19624
diff changeset
  2071
            use different hashing method (and override checkhash() in such case)
30744
e12c0fa1f65b revlog: pass revlog flags to addrevision
Remi Chaintron <remi@fb.com>
parents: 30743
diff changeset
  2072
        flags - the known flags to set on the revision
39330
655b5b465953 revlog: split functionality related to deltas computation in a new module
Boris Feld <boris.feld@octobus.net>
parents: 39329
diff changeset
  2073
        deltacomputer - an optional deltacomputer instance shared between
35738
f90f6fd130c1 revlog: group delta computation methods under _deltacomputer object
Paul Morelle <paul.morelle@octobus.net>
parents: 35737
diff changeset
  2074
            multiple calls
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2075
        """
19326
7014526d67a8 revlog: add exception when linkrev == nullrev
Durham Goode <durham@fb.com>
parents: 19200
diff changeset
  2076
        if link == nullrev:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2077
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2078
                _(b"attempted to add linkrev -1 to %s") % self.indexfile
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2079
            )
25459
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
  2080
42986
33532939c667 revlog: add a `sidedata` parameters to addrevision
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42985
diff changeset
  2081
        if sidedata is None:
33532939c667 revlog: add a `sidedata` parameters to addrevision
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42985
diff changeset
  2082
            sidedata = {}
43039
7902001aaf41 sidedata: make sure we don't use the flag if there are not sidedata
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43038
diff changeset
  2083
            flags = flags & ~REVIDX_SIDEDATA
43030
827cb4fe62a3 sidedata: introduce a new requirement to protect the feature
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43025
diff changeset
  2084
        elif not self.hassidedata:
827cb4fe62a3 sidedata: introduce a new requirement to protect the feature
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43025
diff changeset
  2085
            raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2086
                _(b"trying to add sidedata to a revlog who don't support them")
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2087
            )
43038
7bb5a2465501 revlog: add the appropriate flag is sidedata are passed to `addrevision`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43037
diff changeset
  2088
        else:
7bb5a2465501 revlog: add the appropriate flag is sidedata are passed to `addrevision`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43037
diff changeset
  2089
            flags |= REVIDX_SIDEDATA
42986
33532939c667 revlog: add a `sidedata` parameters to addrevision
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42985
diff changeset
  2090
30745
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2091
        if flags:
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2092
            node = node or self.hash(text, p1, p2)
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2093
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2094
        rawtext, validatehash = flagutil.processflagswrite(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2095
            self, text, flags, sidedata=sidedata
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2096
        )
30745
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2097
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2098
        # If the flag processor modifies the revision data, ignore any provided
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2099
        # cachedelta.
31750
f319981c24c9 revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents: 31749
diff changeset
  2100
        if rawtext != text:
30745
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2101
            cachedelta = None
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2102
31750
f319981c24c9 revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents: 31749
diff changeset
  2103
        if len(rawtext) > _maxentrysize:
39773
2cd93a8d4bde revlog: drop RevlogError alias (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39769
diff changeset
  2104
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2105
                _(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2106
                    b"%s: size of %d bytes exceeds maximum revlog storage of 2GiB"
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2107
                )
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2108
                % (self.indexfile, len(rawtext))
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2109
            )
25459
0bda5bfaf0b1 revlog: move size limit check to addrevision
Matt Mackall <mpm@selenic.com>
parents: 25410
diff changeset
  2110
31750
f319981c24c9 revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents: 31749
diff changeset
  2111
        node = node or self.hash(rawtext, p1, p2)
43535
8b533de0429d index: use `index.has_node` in `revlog.addrevision`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43534
diff changeset
  2112
        if self.index.has_node(node):
12023
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
  2113
            return node
44c22dc193a4 revlog.addrevision(): move computation of nodeid in addrevision()
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12012
diff changeset
  2114
30745
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2115
        if validatehash:
31750
f319981c24c9 revlog: rename some "text"s to "rawtext"
Jun Wu <quark@fb.com>
parents: 31749
diff changeset
  2116
            self.checkhash(rawtext, node, p1=p1, p2=p2)
30745
c1b7b2285522 revlog: flag processor
Remi Chaintron <remi@fb.com>
parents: 30744
diff changeset
  2117
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2118
        return self.addrawrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2119
            rawtext,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2120
            transaction,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2121
            link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2122
            p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2123
            p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2124
            node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2125
            flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2126
            cachedelta=cachedelta,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2127
            deltacomputer=deltacomputer,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2128
        )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2129
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2130
    def addrawrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2131
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2132
        rawtext,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2133
        transaction,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2134
        link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2135
        p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2136
        p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2137
        node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2138
        flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2139
        cachedelta=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2140
        deltacomputer=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2141
    ):
32244
3de4c61b5087 revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents: 32229
diff changeset
  2142
        """add a raw revision with known flags, node and parents
3de4c61b5087 revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents: 32229
diff changeset
  2143
        useful when reusing a revision not stored in this revlog (ex: received
3de4c61b5087 revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents: 32229
diff changeset
  2144
        over wire, or read from an external bundle).
3de4c61b5087 revlog: move part of "addrevision" to "addrawrevision"
Jun Wu <quark@fb.com>
parents: 32229
diff changeset
  2145
        """
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  2146
        dfh = None
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  2147
        if not self._inline:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2148
            dfh = self._datafp(b"a+")
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2149
        ifh = self._indexfp(b"a+")
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2150
        try:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2151
            return self._addrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2152
                node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2153
                rawtext,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2154
                transaction,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2155
                link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2156
                p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2157
                p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2158
                flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2159
                cachedelta,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2160
                ifh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2161
                dfh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2162
                deltacomputer=deltacomputer,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2163
            )
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2164
        finally:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2165
            if dfh:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2166
                dfh.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2167
            ifh.close()
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  2168
30795
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2169
    def compress(self, data):
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2170
        """Generate a possibly-compressed representation of data."""
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2171
        if not data:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2172
            return b'', data
30795
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2173
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2174
        compressed = self._compressor.compress(data)
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2175
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2176
        if compressed:
78ac56aebab6 revlog: use compression engine API for compression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30793
diff changeset
  2177
            # The revlog compressor added the header in the returned data.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2178
            return b'', compressed
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2179
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2180
        if data[0:1] == b'\0':
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2181
            return b'', data
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2182
        return b'u', data
17128
1028a1c9077a revlog: make compress a method
Bryan O'Sullivan <bryano@fb.com>
parents: 17009
diff changeset
  2183
30793
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2184
    def decompress(self, data):
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2185
        """Decompress a revlog chunk.
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2186
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2187
        The chunk is expected to begin with a header identifying the
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2188
        format type so it can be routed to an appropriate decompressor.
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2189
        """
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2190
        if not data:
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2191
            return data
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2192
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2193
        # Revlogs are read much more frequently than they are written and many
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2194
        # chunks only take microseconds to decompress, so performance is
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2195
        # important here.
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2196
        #
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2197
        # We can make a few assumptions about revlogs:
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2198
        #
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2199
        # 1) the majority of chunks will be compressed (as opposed to inline
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2200
        #    raw data).
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2201
        # 2) decompressing *any* data will likely by at least 10x slower than
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2202
        #    returning raw inline data.
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2203
        # 3) we want to prioritize common and officially supported compression
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2204
        #    engines
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2205
        #
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2206
        # It follows that we want to optimize for "decompress compressed data
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2207
        # when encoded with common and officially supported compression engines"
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2208
        # case over "raw data" and "data encoded by less common or non-official
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2209
        # compression engines." That is why we have the inline lookup first
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2210
        # followed by the compengines lookup.
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2211
        #
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2212
        # According to `hg perfrevlogchunks`, this is ~0.5% faster for zlib
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2213
        # compressed chunks. And this matters for changelog and manifest reads.
31356
ef6888172437 revlog: extract first byte of revlog with a slice so it's portable
Augie Fackler <augie@google.com>
parents: 30829
diff changeset
  2214
        t = data[0:1]
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2215
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2216
        if t == b'x':
30793
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2217
            try:
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2218
                return _zlibdecompress(data)
30793
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2219
            except zlib.error as e:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2220
                raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2221
                    _(b'revlog decompress error: %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2222
                    % stringutil.forcebytestr(e)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2223
                )
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2224
        # '\0' is more common than 'u' so it goes first.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2225
        elif t == b'\0':
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2226
            return data
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2227
        elif t == b'u':
30793
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2228
            return util.buffer(data, 1)
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2229
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2230
        try:
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2231
            compressor = self._decompressors[t]
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2232
        except KeyError:
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2233
            try:
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2234
                engine = util.compengines.forrevlogheader(t)
42043
1fac9b931d46 compression: introduce a `storage.revlog.zlib.level` configuration
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41872
diff changeset
  2235
                compressor = engine.revlogcompressor(self._compengineopts)
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2236
                self._decompressors[t] = compressor
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2237
            except KeyError:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2238
                raise error.RevlogError(_(b'unknown compression type %r') % t)
30817
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2239
2b279126b8f5 revlog: use compression engine APIs for decompression
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30795
diff changeset
  2240
        return compressor.decompress(data)
30793
b6f455a6e4d6 revlog: move decompress() from module to revlog class (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30792
diff changeset
  2241
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2242
    def _addrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2243
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2244
        node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2245
        rawtext,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2246
        transaction,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2247
        link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2248
        p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2249
        p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2250
        flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2251
        cachedelta,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2252
        ifh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2253
        dfh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2254
        alwayscache=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2255
        deltacomputer=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2256
    ):
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
  2257
        """internal function to add revisions to the log
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  2258
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
  2259
        see addrevision for argument descriptions.
31755
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2260
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2261
        note: "addrevision" takes non-raw text, "_addrevision" takes raw text.
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2262
35738
f90f6fd130c1 revlog: group delta computation methods under _deltacomputer object
Paul Morelle <paul.morelle@octobus.net>
parents: 35737
diff changeset
  2263
        if "deltacomputer" is not provided or None, a defaultdeltacomputer will
f90f6fd130c1 revlog: group delta computation methods under _deltacomputer object
Paul Morelle <paul.morelle@octobus.net>
parents: 35737
diff changeset
  2264
        be used.
f90f6fd130c1 revlog: group delta computation methods under _deltacomputer object
Paul Morelle <paul.morelle@octobus.net>
parents: 35737
diff changeset
  2265
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
  2266
        invariants:
31755
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2267
        - rawtext is optional (can be None); if not set, cachedelta must be set.
17424
e7cfe3587ea4 fix trivial spelling errors
Mads Kiilerich <mads@kiilerich.com>
parents: 17150
diff changeset
  2268
          if both are set, they must correspond to each other.
14292
c97d8485b5fa revlog: add docstring to _addrevision
Sune Foldager <cryo@cyanite.org>
parents: 14270
diff changeset
  2269
        """
33938
9180f8f593f3 revlog: abort on attempt to write null revision
Martin von Zweigbergk <martinvonz@google.com>
parents: 33392
diff changeset
  2270
        if node == nullid:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2271
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2272
                _(b"%s: attempt to add null revision") % self.indexfile
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2273
            )
37449
a0d71618074f revlog: detect pseudo file nodeids to raise WdirUnsupported exception
Yuya Nishihara <yuya@tcha.org>
parents: 37443
diff changeset
  2274
        if node == wdirid or node in wdirfilenodeids:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2275
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2276
                _(b"%s: attempt to add wdir revision") % self.indexfile
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2277
            )
34028
bfb38c5cebf4 revlog: move check for wdir from changelog to revlog
Martin von Zweigbergk <martinvonz@google.com>
parents: 34026
diff changeset
  2278
35635
0b52c0ecbc23 revlog: choose between ifh and dfh once for all
Paul Morelle <paul.morelle@octobus.net>
parents: 35634
diff changeset
  2279
        if self._inline:
0b52c0ecbc23 revlog: choose between ifh and dfh once for all
Paul Morelle <paul.morelle@octobus.net>
parents: 35634
diff changeset
  2280
            fh = ifh
0b52c0ecbc23 revlog: choose between ifh and dfh once for all
Paul Morelle <paul.morelle@octobus.net>
parents: 35634
diff changeset
  2281
        else:
0b52c0ecbc23 revlog: choose between ifh and dfh once for all
Paul Morelle <paul.morelle@octobus.net>
parents: 35634
diff changeset
  2282
            fh = dfh
0b52c0ecbc23 revlog: choose between ifh and dfh once for all
Paul Morelle <paul.morelle@octobus.net>
parents: 35634
diff changeset
  2283
31755
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2284
        btext = [rawtext]
12623
8f97b50a8d10 revlog._addrevision(): allow text argument to be None, build it lazily
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12336
diff changeset
  2285
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2286
        curr = len(self)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  2287
        prev = curr - 1
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  2288
        offset = self.end(prev)
12889
5482c6b826f4 revlog: precalculate p1 and p2 revisions
Matt Mackall <mpm@selenic.com>
parents: 12888
diff changeset
  2289
        p1r, p2r = self.rev(p1), self.rev(p2)
0
9117c6561b0b Add back links from file revisions to changeset revisions
mpm@selenic.com
parents:
diff changeset
  2290
26116
562cfc99e611 revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents: 26115
diff changeset
  2291
        # full versions are inserted when the needed deltas
562cfc99e611 revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents: 26115
diff changeset
  2292
        # become comparable to the uncompressed text
31755
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2293
        if rawtext is None:
36748
369aadf7a326 revlog: resolve lfs rawtext to vanilla rawtext before applying delta
Jun Wu <quark@fb.com>
parents: 36744
diff changeset
  2294
            # need rawtext size, before changed by flag processors, which is
369aadf7a326 revlog: resolve lfs rawtext to vanilla rawtext before applying delta
Jun Wu <quark@fb.com>
parents: 36744
diff changeset
  2295
            # the non-raw size. use revlog explicitly to avoid filelog's extra
369aadf7a326 revlog: resolve lfs rawtext to vanilla rawtext before applying delta
Jun Wu <quark@fb.com>
parents: 36744
diff changeset
  2296
            # logic that might remove metadata size.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2297
            textlen = mdiff.patchedsize(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2298
                revlog.size(self, cachedelta[0]), cachedelta[1]
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2299
            )
26116
562cfc99e611 revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents: 26115
diff changeset
  2300
        else:
31755
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2301
            textlen = len(rawtext)
26116
562cfc99e611 revlog: move textlen calculation to be above delta chooser
Durham Goode <durham@fb.com>
parents: 26115
diff changeset
  2302
35738
f90f6fd130c1 revlog: group delta computation methods under _deltacomputer object
Paul Morelle <paul.morelle@octobus.net>
parents: 35737
diff changeset
  2303
        if deltacomputer is None:
39330
655b5b465953 revlog: split functionality related to deltas computation in a new module
Boris Feld <boris.feld@octobus.net>
parents: 39329
diff changeset
  2304
            deltacomputer = deltautil.deltacomputer(self)
35738
f90f6fd130c1 revlog: group delta computation methods under _deltacomputer object
Paul Morelle <paul.morelle@octobus.net>
parents: 35737
diff changeset
  2305
35737
d99b07bc69fb revlog: refactor out _finddeltainfo from _addrevision
Paul Morelle <paul.morelle@octobus.net>
parents: 35641
diff changeset
  2306
        revinfo = _revisioninfo(node, p1, p2, btext, textlen, cachedelta, flags)
36744
33275ab5e837 revlog: do not use delta for lfs revisions
Jun Wu <quark@fb.com>
parents: 36743
diff changeset
  2307
39332
6f4b8f607a31 revlogdeltas: move special cases around raw revisions in finddeltainfo
Boris Feld <boris.feld@octobus.net>
parents: 39330
diff changeset
  2308
        deltainfo = deltacomputer.finddeltainfo(revinfo, fh)
35634
b43578ec483a revlog: refactor out the selection of candidate revisions
Paul Morelle <paul.morelle@octobus.net>
parents: 35521
diff changeset
  2309
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2310
        e = (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2311
            offset_type(offset, flags),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2312
            deltainfo.deltalen,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2313
            textlen,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2314
            deltainfo.base,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2315
            link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2316
            p1r,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2317
            p2r,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2318
            node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2319
        )
38850
6104b203bec8 index: replace insert(-1, e) method by append(e) method
Martin von Zweigbergk <martinvonz@google.com>
parents: 38849
diff changeset
  2320
        self.index.append(e)
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  2321
5338
f87685355c9c revlog: fix revlogio.packentry corner case
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5325
diff changeset
  2322
        entry = self._io.packentry(e, self.node, self.version, curr)
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2323
        self._writeentry(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2324
            transaction, ifh, dfh, entry, deltainfo.data, link, offset
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2325
        )
39333
5d343a24bff5 revlogdeltas: always return a delta info object in finddeltainfo
Boris Feld <boris.feld@octobus.net>
parents: 39332
diff changeset
  2326
5d343a24bff5 revlogdeltas: always return a delta info object in finddeltainfo
Boris Feld <boris.feld@octobus.net>
parents: 39332
diff changeset
  2327
        rawtext = btext[0]
20217
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
  2328
31755
ec48d57de110 revlog: make _addrevision only accept rawtext
Jun Wu <quark@fb.com>
parents: 31754
diff changeset
  2329
        if alwayscache and rawtext is None:
39192
dbc5ead9f40f revlog: fix typo in 'buildtext' name
Boris Feld <boris.feld@octobus.net>
parents: 39191
diff changeset
  2330
            rawtext = deltacomputer.buildtext(revinfo, fh)
26243
836291420d53 revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26242
diff changeset
  2331
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2332
        if type(rawtext) == bytes:  # only accept immutable objects
40052
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
  2333
            self._revisioncache = (node, curr, rawtext)
39333
5d343a24bff5 revlogdeltas: always return a delta info object in finddeltainfo
Boris Feld <boris.feld@octobus.net>
parents: 39332
diff changeset
  2334
        self._chainbasecache[curr] = deltainfo.chainbase
20217
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
  2335
        return node
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
  2336
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
  2337
    def _writeentry(self, transaction, ifh, dfh, entry, data, link, offset):
27430
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2338
        # Files opened in a+ mode have inconsistent behavior on various
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2339
        # platforms. Windows requires that a file positioning call be made
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2340
        # when the file handle transitions between reads and writes. See
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2341
        # 3686fa2b8eee and the mixedfilemodewrapper in windows.py. On other
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2342
        # platforms, Python or the platform itself can be buggy. Some versions
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2343
        # of Solaris have been observed to not append at the end of the file
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2344
        # if the file was seeked to before the end. See issue4943 for more.
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2345
        #
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2346
        # We work around this issue by inserting a seek() before writing.
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2347
        # Note: This is likely not necessary on Python 3. However, because
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2348
        # the file handle is reused for reads and may be seeked there, we need
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2349
        # to be careful before changing this.
27430
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2350
        ifh.seek(0, os.SEEK_END)
27441
e47841c8343d revlog: fix bad indentation (replace tab by space)
Martin von Zweigbergk <martinvonz@google.com>
parents: 27430
diff changeset
  2351
        if dfh:
27430
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2352
            dfh.seek(0, os.SEEK_END)
e240e914d226 revlog: seek to end of file before writing (issue4943)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26705
diff changeset
  2353
20217
33394f2e331e revlog: move file writing to a separate function
Durham Goode <durham@fb.com>
parents: 20180
diff changeset
  2354
        curr = len(self) - 1
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  2355
        if not self._inline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2356
            transaction.add(self.datafile, offset)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  2357
            transaction.add(self.indexfile, curr * len(entry))
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2358
            if data[0]:
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  2359
                dfh.write(data[0])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  2360
            dfh.write(data[1])
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  2361
            ifh.write(entry)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2362
        else:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  2363
            offset += curr * self._io.size
5324
8409a2e3a78d revlog: fix inlined revision transaction extra data (issue 749)
Patrick Mezard <pmezard@gmail.com>
parents: 5007
diff changeset
  2364
            transaction.add(self.indexfile, offset, curr)
4981
e7131935fbb3 revlog: simplify addrevision
Matt Mackall <mpm@selenic.com>
parents: 4980
diff changeset
  2365
            ifh.write(entry)
3390
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  2366
            ifh.write(data[0])
a74addddd092 make revlog.addgroup pass its file handles to addrevision
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 3360
diff changeset
  2367
            ifh.write(data[1])
35974
9ba1d0c724e2 revlog: rename 'self.checkinlinesize' into '_enforceinlinesize'
Boris Feld <boris.feld@octobus.net>
parents: 35973
diff changeset
  2368
            self._enforceinlinesize(transaction, ifh)
44308
5962fd0d1045 nodemap: write nodemap data on disk
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 44073
diff changeset
  2369
        nodemaputil.setup_persistent_nodemap(transaction, self)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2370
34291
1db9abf407c5 revlog: add revmap back to revlog.addgroup
Durham Goode <durham@fb.com>
parents: 34250
diff changeset
  2371
    def addgroup(self, deltas, linkmapper, transaction, addrevisioncb=None):
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2372
        """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2373
        add a delta group
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  2374
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2375
        given a set of deltas, add them to the revision log. the
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2376
        first delta is against its parent, which should be in our
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2377
        log, the rest are against the previous delta.
25822
00e3f909907f revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25660
diff changeset
  2378
00e3f909907f revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25660
diff changeset
  2379
        If ``addrevisioncb`` is defined, it will be called with arguments of
00e3f909907f revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25660
diff changeset
  2380
        this revlog and the node that was added.
1083
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2381
        """
30974cf73435 Add some docstrings to revlog.py
mpm@selenic.com
parents: 1074
diff changeset
  2382
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2383
        if self._writinghandles:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2384
            raise error.ProgrammingError(b'cannot nest addgroup() calls')
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2385
32868
ef015ba5ba2e revlog: rename list of nodes from "content" to "nodes"
Martin von Zweigbergk <martinvonz@google.com>
parents: 32867
diff changeset
  2386
        nodes = []
515
03f27b1381f9 Whitespace cleanups
mpm@selenic.com
parents: 484
diff changeset
  2387
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  2388
        r = len(self)
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  2389
        end = 0
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  2390
        if r:
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  2391
            end = self.end(r - 1)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2392
        ifh = self._indexfp(b"a+")
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  2393
        isize = r * self._io.size
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  2394
        if self._inline:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  2395
            transaction.add(self.indexfile, end + isize, r)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2396
            dfh = None
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2397
        else:
4996
a0d37976cd5b revlog: avoid some unnecessary seek/tell syscalls
Matt Mackall <mpm@selenic.com>
parents: 4994
diff changeset
  2398
            transaction.add(self.indexfile, isize, r)
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2399
            transaction.add(self.datafile, end)
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2400
            dfh = self._datafp(b"a+")
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2401
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2402
        def flush():
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2403
            if dfh:
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2404
                dfh.flush()
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2405
            ifh.flush()
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2406
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2407
        self._writinghandles = (ifh, dfh)
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2408
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2409
        try:
39330
655b5b465953 revlog: split functionality related to deltas computation in a new module
Boris Feld <boris.feld@octobus.net>
parents: 39329
diff changeset
  2410
            deltacomputer = deltautil.deltacomputer(self)
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2411
            # loop through our set of deltas
34148
c8b6ed51386b changegroup: remove changegroup dependency from revlog.addgroup
Durham Goode <durham@fb.com>
parents: 34147
diff changeset
  2412
            for data in deltas:
34291
1db9abf407c5 revlog: add revmap back to revlog.addgroup
Durham Goode <durham@fb.com>
parents: 34250
diff changeset
  2413
                node, p1, p2, linknode, deltabase, delta, flags = data
1db9abf407c5 revlog: add revmap back to revlog.addgroup
Durham Goode <durham@fb.com>
parents: 34250
diff changeset
  2414
                link = linkmapper(linknode)
34148
c8b6ed51386b changegroup: remove changegroup dependency from revlog.addgroup
Durham Goode <durham@fb.com>
parents: 34147
diff changeset
  2415
                flags = flags or REVIDX_DEFAULT_FLAGS
12336
9d234f7d8a77 bundle: move chunk parsing into unbundle class
Matt Mackall <mpm@selenic.com>
parents: 12335
diff changeset
  2416
32868
ef015ba5ba2e revlog: rename list of nodes from "content" to "nodes"
Martin von Zweigbergk <martinvonz@google.com>
parents: 32867
diff changeset
  2417
                nodes.append(node)
15890
e234eda20984 revlog: make addgroup returns a list of node contained in the added source
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 15835
diff changeset
  2418
43536
bf6fa330e0a5 index: use `index.has_node` in `revlog.addgroup`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43535
diff changeset
  2419
                if self.index.has_node(node):
39886
debc4ee597e7 revlog: add a callback "tracking" duplicate node addition
Boris Feld <boris.feld@octobus.net>
parents: 39881
diff changeset
  2420
                    self._nodeduplicatecallback(transaction, node)
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2421
                    # this can happen if two branches make the same change
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2422
                    continue
192
5d8553352d2e Changes to network protocol
mpm@selenic.com
parents: 155
diff changeset
  2423
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2424
                for p in (p1, p2):
43536
bf6fa330e0a5 index: use `index.has_node` in `revlog.addgroup`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43535
diff changeset
  2425
                    if not self.index.has_node(p):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2426
                        raise error.LookupError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2427
                            p, self.indexfile, _(b'unknown parent')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2428
                        )
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  2429
43536
bf6fa330e0a5 index: use `index.has_node` in `revlog.addgroup`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43535
diff changeset
  2430
                if not self.index.has_node(deltabase):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2431
                    raise error.LookupError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2432
                        deltabase, self.indexfile, _(b'unknown delta base')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2433
                    )
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  2434
14141
bd1cbfe5db5c bundler: make parsechunk return the base revision of the delta
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 14075
diff changeset
  2435
                baserev = self.rev(deltabase)
24120
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2436
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2437
                if baserev != nullrev and self.iscensored(baserev):
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2438
                    # if base is censored, delta must be full replacement in a
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2439
                    # single patch operation
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2440
                    hlen = struct.calcsize(b">lll")
24120
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2441
                    oldlen = self.rawsize(baserev)
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2442
                    newlen = len(delta) - hlen
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2443
                    if delta[:hlen] != mdiff.replacediffheader(oldlen, newlen):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2444
                        raise error.CensoredBaseError(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2445
                            self.indexfile, self.node(baserev)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2446
                        )
24120
a450e0a2ba0a revlog: in addgroup, reject ill-formed deltas based on censored nodes
Mike Edgar <adgar@google.com>
parents: 24118
diff changeset
  2447
27433
12f727a5b434 changegroup: add flags field to cg3 delta header
Mike Edgar <adgar@google.com>
parents: 27431
diff changeset
  2448
                if not flags and self._peek_iscensored(baserev, delta, flush):
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2449
                    flags |= REVIDX_ISCENSORED
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2450
26243
836291420d53 revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26242
diff changeset
  2451
                # We assume consumers of addrevisioncb will want to retrieve
836291420d53 revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26242
diff changeset
  2452
                # the added revision, which will require a call to
836291420d53 revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26242
diff changeset
  2453
                # revision(). revision() will fast path if there is a cache
836291420d53 revlog: optionally cache the full text when adding revisions
Gregory Szorc <gregory.szorc@gmail.com>
parents: 26242
diff changeset
  2454
                # hit. So, we tell _addrevision() to always cache in this case.
30743
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  2455
                # We're only using addgroup() in the context of changegroup
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  2456
                # generation so the revision data can always be handled as raw
2df983125d37 revlog: add 'raw' argument to revision and _addrevision
Remi Chaintron <remi@fb.com>
parents: 30584
diff changeset
  2457
                # by the flagprocessor.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2458
                self._addrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2459
                    node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2460
                    None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2461
                    transaction,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2462
                    link,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2463
                    p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2464
                    p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2465
                    flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2466
                    (baserev, delta),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2467
                    ifh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2468
                    dfh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2469
                    alwayscache=bool(addrevisioncb),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2470
                    deltacomputer=deltacomputer,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2471
                )
25822
00e3f909907f revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25660
diff changeset
  2472
00e3f909907f revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25660
diff changeset
  2473
                if addrevisioncb:
34147
b96cfc309ac5 revlog: refactor chain variable
Durham Goode <durham@fb.com>
parents: 34028
diff changeset
  2474
                    addrevisioncb(self, node)
25822
00e3f909907f revlog: add support for a callback whenever revisions are added
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25660
diff changeset
  2475
12624
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  2476
                if not dfh and not self._inline:
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  2477
                    # addrevision switched from inline to conventional
557988c691d1 revlog.addgroup(): always use _addrevision() to add new revlog entries
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 12623
diff changeset
  2478
                    # reopen the index
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
  2479
                    ifh.close()
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2480
                    dfh = self._datafp(b"a+")
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2481
                    ifh = self._indexfp(b"a+")
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2482
                    self._writinghandles = (ifh, dfh)
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2483
        finally:
40627
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2484
            self._writinghandles = None
e9293c5f8bb9 revlog: automatically read from opened file handles
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40626
diff changeset
  2485
6261
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2486
            if dfh:
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2487
                dfh.close()
7c8101b5ceb1 revlog: make sure the files are closed after an exception happens
Benoit Boissinot <benoit.boissinot@ens-lyon.org>
parents: 6228
diff changeset
  2488
            ifh.close()
46
93e868fa0db8 Add changegroup support
mpm@selenic.com
parents: 45
diff changeset
  2489
32868
ef015ba5ba2e revlog: rename list of nodes from "content" to "nodes"
Martin von Zweigbergk <martinvonz@google.com>
parents: 32867
diff changeset
  2490
        return nodes
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
  2491
24118
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
  2492
    def iscensored(self, rev):
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
  2493
        """Check if a file revision is censored."""
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2494
        if not self._censorable:
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2495
            return False
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2496
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2497
        return self.flags(rev) & REVIDX_ISCENSORED
24118
76f6ae06ddf5 revlog: add "iscensored()" to revlog public API
Mike Edgar <adgar@google.com>
parents: 24030
diff changeset
  2498
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2499
    def _peek_iscensored(self, baserev, delta, flush):
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2500
        """Quickly check if a delta produces a censored revision."""
37443
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2501
        if not self._censorable:
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2502
            return False
65250a66b55c revlog: move censor logic into main revlog class
Gregory Szorc <gregory.szorc@gmail.com>
parents: 37442
diff changeset
  2503
40325
b0fbd1792e2d storageutil: extract most of peek_censored from revlog
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40298
diff changeset
  2504
        return storageutil.deltaiscensored(delta, baserev, self.rawsize)
24255
4bfe9f2d9761 revlog: addgroup checks if incoming deltas add censored revs, sets flag bit
Mike Edgar <adgar@google.com>
parents: 24123
diff changeset
  2505
20074
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2506
    def getstrippoint(self, minlink):
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2507
        """find the minimum rev that must be stripped to strip the linkrev
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2508
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2509
        Returns a tuple containing the minimum rev and a set of all revs that
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2510
        have linkrevs that will be broken by this strip.
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2511
        """
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2512
        return storageutil.resolvestripinfo(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2513
            minlink,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2514
            len(self) - 1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2515
            self.headrevs(),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2516
            self.linkrev,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2517
            self.parentrevs,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2518
        )
20074
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2519
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
  2520
    def strip(self, minlink, transaction):
5910
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2521
        """truncate the revlog on the first revision with a linkrev >= minlink
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2522
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2523
        This function is called when we're stripping revision minlink and
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2524
        its descendants from the repository.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2525
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2526
        We have to remove all revisions with linkrev >= minlink, because
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2527
        the equivalent changelog revisions will be renumbered after the
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2528
        strip.
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2529
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2530
        So we truncate the revlog on the first of these revisions, and
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2531
        trust that the caller has saved the revisions that shouldn't be
15827
1dacf7672556 revlog: clarify strip docstring "readd" -> "re-add"
Steven Brown <StevenGBrown@gmail.com>
parents: 15407
diff changeset
  2532
        removed and that it'll re-add them after this truncation.
5910
b9a830fa10f6 simplify revlog.strip interface and callers; add docstring
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5909
diff changeset
  2533
        """
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2534
        if len(self) == 0:
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2535
            return
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2536
20074
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2537
        rev, _ = self.getstrippoint(minlink)
5fc2ae1c631b strip: add faster revlog strip computation
Durham Goode <durham@fb.com>
parents: 20073
diff changeset
  2538
        if rev == len(self):
5909
f45f7390c1c5 strip: calculate list of extra nodes to save and pass it to changegroupsubset
Alexis S. L. Carvalho <alexis@cecm.usp.br>
parents: 5659
diff changeset
  2539
            return
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2540
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2541
        # first truncate the files on disk
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2542
        end = self.start(rev)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  2543
        if not self._inline:
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
  2544
            transaction.add(self.datafile, end)
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  2545
            end = rev * self._io.size
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2546
        else:
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  2547
            end += rev * self._io.size
2072
74d3f5336b66 Implement revlogng.
mason@suse.com
parents: 2002
diff changeset
  2548
8073
e8a28556a0a8 strip: make repair.strip transactional to avoid repository corruption
Henrik Stuart <henrik.stuart@edlund.dk>
parents: 8017
diff changeset
  2549
        transaction.add(self.indexfile, end)
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2550
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2551
        # then reset internal state in memory to forget those revisions
40052
55db747a21ad revlog: rename _cache to _revisioncache
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40010
diff changeset
  2552
        self._revisioncache = None
23306
f7a42f8e82bd revlog: cache chain info after calculating it for a rev (issue4452)
Siddharth Agarwal <sid0@fb.com>
parents: 23288
diff changeset
  2553
        self._chaininfocache = {}
8650
ef393d6ec030 revlog: refactor chunk cache interface again
Matt Mackall <mpm@selenic.com>
parents: 8643
diff changeset
  2554
        self._chunkclear()
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2555
4979
06abdaf78788 revlog: add a magic null revision to our index
Matt Mackall <mpm@selenic.com>
parents: 4978
diff changeset
  2556
        del self.index[rev:-1]
1535
7ae0ce7a3dc4 Add revlog.strip to truncate away revisions.
mason@suse.com
parents: 1533
diff changeset
  2557
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
  2558
    def checksize(self):
41872
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2559
        """Check size of index and data files
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2560
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2561
        return a (dd, di) tuple.
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2562
        - dd: extra bytes for the "data" file
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2563
        - di: extra bytes for the "index" file
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2564
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2565
        A healthy revlog will return (0, 0).
3f3f962457b2 revlog: add some documentation to the `checksize` method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41857
diff changeset
  2566
        """
1493
1a216cb4ee64 verify: add check for mismatch of index and data length
Matt Mackall <mpm@selenic.com>
parents: 1469
diff changeset
  2567
        expected = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2568
        if len(self):
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2569
            expected = max(0, self.end(len(self) - 1))
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2570
1494
249ca10d37f4 Handle empty logs in repo.checksize
Matt Mackall <mpm@selenic.com>
parents: 1493
diff changeset
  2571
        try:
35972
82afb1a5ed94 revlog: use context manager for data file lifetime in checksize
Boris Feld <boris.feld@octobus.net>
parents: 35971
diff changeset
  2572
            with self._datafp() as f:
42567
4eaf7197a740 cleanup: use named constants for second arg to .seek()
Augie Fackler <augie@google.com>
parents: 42462
diff changeset
  2573
                f.seek(0, io.SEEK_END)
35972
82afb1a5ed94 revlog: use context manager for data file lifetime in checksize
Boris Feld <boris.feld@octobus.net>
parents: 35971
diff changeset
  2574
                actual = f.tell()
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2575
            dd = actual - expected
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25459
diff changeset
  2576
        except IOError as inst:
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2577
            if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2578
                raise
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2579
            dd = 0
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2580
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2581
        try:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2582
            f = self.opener(self.indexfile)
42567
4eaf7197a740 cleanup: use named constants for second arg to .seek()
Augie Fackler <augie@google.com>
parents: 42462
diff changeset
  2583
            f.seek(0, io.SEEK_END)
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2584
            actual = f.tell()
13400
14f3795a5ed7 explicitly close files
Dan Villiom Podlaski Christiansen <danchr@gmail.com>
parents: 13284
diff changeset
  2585
            f.close()
4977
6cb30bc4ca32 revlog: parse revlogv0 indexes into v1 internally
Matt Mackall <mpm@selenic.com>
parents: 4976
diff changeset
  2586
            s = self._io.size
9029
0001e49f1c11 compat: use // for integer division
Alejandro Santos <alejolp@alejolp.com>
parents: 8658
diff changeset
  2587
            i = max(0, actual // s)
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2588
            di = actual - (i * s)
4982
9672e3c42b0c revlog: change _inline from a function to a variable
Matt Mackall <mpm@selenic.com>
parents: 4981
diff changeset
  2589
            if self._inline:
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2590
                databytes = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2591
                for r in self:
5312
fb070713ff36 revlog: more robust for damaged indexes
Matt Mackall <mpm@selenic.com>
parents: 5007
diff changeset
  2592
                    databytes += max(0, self.length(r))
2073
1e6745f78989 Implement data inlined with the index file
mason@suse.com
parents: 2072
diff changeset
  2593
                dd = 0
6750
fb42030d79d6 add __len__ and __iter__ methods to repo and revlog
Matt Mackall <mpm@selenic.com>
parents: 6703
diff changeset
  2594
                di = actual - len(self) * s - databytes
25660
328739ea70c3 global: mass rewrite to use modern exception syntax
Gregory Szorc <gregory.szorc@gmail.com>
parents: 25459
diff changeset
  2595
        except IOError as inst:
1667
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2596
            if inst.errno != errno.ENOENT:
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2597
                raise
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2598
            di = 0
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2599
daff3ef0de8d verify: notice extra data in indices
Matt Mackall <mpm@selenic.com>
parents: 1660
diff changeset
  2600
        return (dd, di)
6891
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  2601
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  2602
    def files(self):
10282
08a0f04b56bd many, many trivial check-code fixups
Matt Mackall <mpm@selenic.com>
parents: 10264
diff changeset
  2603
        res = [self.indexfile]
6891
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  2604
        if not self._inline:
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  2605
            res.append(self.datafile)
22cb82433842 revlog: add files method
Adrian Buehlmann <adrian@cadifra.com>
parents: 6872
diff changeset
  2606
        return res
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2607
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2608
    def emitrevisions(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2609
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2610
        nodes,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2611
        nodesorder=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2612
        revisiondata=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2613
        assumehaveparentrevisions=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2614
        deltamode=repository.CG_DELTAMODE_STD,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2615
    ):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2616
        if nodesorder not in (b'nodes', b'storage', b'linear', None):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2617
            raise error.ProgrammingError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2618
                b'unhandled value for nodesorder: %s' % nodesorder
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2619
            )
39862
5a9ab91e0a45 revlog: new API to emit revision data
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39845
diff changeset
  2620
5a9ab91e0a45 revlog: new API to emit revision data
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39845
diff changeset
  2621
        if nodesorder is None and not self._generaldelta:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2622
            nodesorder = b'storage'
39862
5a9ab91e0a45 revlog: new API to emit revision data
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39845
diff changeset
  2623
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2624
        if (
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2625
            not self._storedeltachains
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2626
            and deltamode != repository.CG_DELTAMODE_PREV
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2627
        ):
40427
59a870a4ad6e changegroup: refactor emitrevision to use a `deltamode` argument
Boris Feld <boris.feld@octobus.net>
parents: 40325
diff changeset
  2628
            deltamode = repository.CG_DELTAMODE_FULL
59a870a4ad6e changegroup: refactor emitrevision to use a `deltamode` argument
Boris Feld <boris.feld@octobus.net>
parents: 40325
diff changeset
  2629
40008
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2630
        return storageutil.emitrevisions(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2631
            self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2632
            nodes,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2633
            nodesorder,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2634
            revlogrevisiondelta,
40008
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2635
            deltaparentfn=self.deltaparent,
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2636
            candeltafn=self.candelta,
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2637
            rawsizefn=self.rawsize,
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2638
            revdifffn=self.revdiff,
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2639
            flagsfn=self.flags,
40427
59a870a4ad6e changegroup: refactor emitrevision to use a `deltamode` argument
Boris Feld <boris.feld@octobus.net>
parents: 40325
diff changeset
  2640
            deltamode=deltamode,
40008
842ffcf1d42f storageutil: extract most of emitrevisions() to standalone function
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40004
diff changeset
  2641
            revisiondata=revisiondata,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2642
            assumehaveparentrevisions=assumehaveparentrevisions,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2643
        )
39862
5a9ab91e0a45 revlog: new API to emit revision data
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39845
diff changeset
  2644
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2645
    DELTAREUSEALWAYS = b'always'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2646
    DELTAREUSESAMEREVS = b'samerevs'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2647
    DELTAREUSENEVER = b'never'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2648
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2649
    DELTAREUSEFULLADD = b'fulladd'
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2650
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2651
    DELTAREUSEALL = {b'always', b'samerevs', b'never', b'fulladd'}
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2652
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2653
    def clone(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2654
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2655
        tr,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2656
        destrevlog,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2657
        addrevisioncb=None,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2658
        deltareuse=DELTAREUSESAMEREVS,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2659
        forcedeltabothparents=None,
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2660
        sidedatacompanion=None,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2661
    ):
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2662
        """Copy this revlog to another, possibly with format changes.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2663
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2664
        The destination revlog will contain the same revisions and nodes.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2665
        However, it may not be bit-for-bit identical due to e.g. delta encoding
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2666
        differences.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2667
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2668
        The ``deltareuse`` argument control how deltas from the existing revlog
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2669
        are preserved in the destination revlog. The argument can have the
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2670
        following values:
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2671
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2672
        DELTAREUSEALWAYS
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2673
           Deltas will always be reused (if possible), even if the destination
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2674
           revlog would not select the same revisions for the delta. This is the
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2675
           fastest mode of operation.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2676
        DELTAREUSESAMEREVS
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2677
           Deltas will be reused if the destination revlog would pick the same
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2678
           revisions for the delta. This mode strikes a balance between speed
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2679
           and optimization.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2680
        DELTAREUSENEVER
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2681
           Deltas will never be reused. This is the slowest mode of execution.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2682
           This mode can be used to recompute deltas (e.g. if the diff/delta
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2683
           algorithm changes).
42997
6510c7830838 upgrade: document DELTAREUSEFULLADD in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42996
diff changeset
  2684
        DELTAREUSEFULLADD
6510c7830838 upgrade: document DELTAREUSEFULLADD in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42996
diff changeset
  2685
           Revision will be re-added as if their were new content. This is
6510c7830838 upgrade: document DELTAREUSEFULLADD in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42996
diff changeset
  2686
           slower than DELTAREUSEALWAYS but allow more mechanism to kicks in.
6510c7830838 upgrade: document DELTAREUSEFULLADD in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42996
diff changeset
  2687
           eg: large file detection and handling.
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2688
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2689
        Delta computation can be slow, so the choice of delta reuse policy can
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2690
        significantly affect run time.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2691
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2692
        The default policy (``DELTAREUSESAMEREVS``) strikes a balance between
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2693
        two extremes. Deltas will be reused if they are appropriate. But if the
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2694
        delta could choose a better revision, it will do so. This means if you
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2695
        are converting a non-generaldelta revlog to a generaldelta revlog,
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2696
        deltas will be recomputed if the delta's parent isn't a parent of the
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2697
        revision.
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2698
40837
64051af15596 upgrade: clarify "aggressivemergedelta" handling
Boris Feld <boris.feld@octobus.net>
parents: 40738
diff changeset
  2699
        In addition to the delta policy, the ``forcedeltabothparents``
64051af15596 upgrade: clarify "aggressivemergedelta" handling
Boris Feld <boris.feld@octobus.net>
parents: 40738
diff changeset
  2700
        argument controls whether to force compute deltas against both parents
64051af15596 upgrade: clarify "aggressivemergedelta" handling
Boris Feld <boris.feld@octobus.net>
parents: 40738
diff changeset
  2701
        for merges. By default, the current default is used.
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2702
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2703
        If not None, the `sidedatacompanion` is callable that accept two
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2704
        arguments:
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2705
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2706
            (srcrevlog, rev)
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2707
45735
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2708
        and return a quintet that control changes to sidedata content from the
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2709
        old revision to the new clone result:
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2710
45735
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2711
            (dropall, filterout, update, new_flags, dropped_flags)
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2712
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2713
        * if `dropall` is True, all sidedata should be dropped
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2714
        * `filterout` is a set of sidedata keys that should be dropped
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2715
        * `update` is a mapping of additionnal/new key -> value
45735
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2716
        * new_flags is a bitfields of new flags that the revision should get
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2717
        * dropped_flags is a bitfields of new flags that the revision shoudl not longer have
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2718
        """
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2719
        if deltareuse not in self.DELTAREUSEALL:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2720
            raise ValueError(
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2721
                _(b'value for deltareuse invalid: %s') % deltareuse
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2722
            )
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2723
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2724
        if len(destrevlog):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2725
            raise ValueError(_(b'destination revlog is not empty'))
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2726
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2727
        if getattr(self, 'filteredrevs', None):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2728
            raise ValueError(_(b'source revlog has filtered revisions'))
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2729
        if getattr(destrevlog, 'filteredrevs', None):
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2730
            raise ValueError(_(b'destination revlog has filtered revisions'))
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2731
41857
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2732
        # lazydelta and lazydeltabase controls whether to reuse a cached delta,
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2733
        # if possible.
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2734
        oldlazydelta = destrevlog._lazydelta
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2735
        oldlazydeltabase = destrevlog._lazydeltabase
38736
93777d16a25d aggressivemergedeltas: rename variable internally
Boris Feld <boris.feld@octobus.net>
parents: 38718
diff changeset
  2736
        oldamd = destrevlog._deltabothparents
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2737
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2738
        try:
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2739
            if deltareuse == self.DELTAREUSEALWAYS:
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2740
                destrevlog._lazydeltabase = True
41857
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2741
                destrevlog._lazydelta = True
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2742
            elif deltareuse == self.DELTAREUSESAMEREVS:
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2743
                destrevlog._lazydeltabase = False
41857
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2744
                destrevlog._lazydelta = True
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2745
            elif deltareuse == self.DELTAREUSENEVER:
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2746
                destrevlog._lazydeltabase = False
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2747
                destrevlog._lazydelta = False
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2748
40837
64051af15596 upgrade: clarify "aggressivemergedelta" handling
Boris Feld <boris.feld@octobus.net>
parents: 40738
diff changeset
  2749
            destrevlog._deltabothparents = forcedeltabothparents or oldamd
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2750
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2751
            self._clone(
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2752
                tr,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2753
                destrevlog,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2754
                addrevisioncb,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2755
                deltareuse,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2756
                forcedeltabothparents,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2757
                sidedatacompanion,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2758
            )
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2759
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2760
        finally:
41857
afd37ed731f1 revlog: preserve `_lazydelta` attribute in `revlog.clone`
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 41819
diff changeset
  2761
            destrevlog._lazydelta = oldlazydelta
30778
1c7368d1a25f revlog: add clone method
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30746
diff changeset
  2762
            destrevlog._lazydeltabase = oldlazydeltabase
38736
93777d16a25d aggressivemergedeltas: rename variable internally
Boris Feld <boris.feld@octobus.net>
parents: 38718
diff changeset
  2763
            destrevlog._deltabothparents = oldamd
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2764
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2765
    def _clone(
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2766
        self,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2767
        tr,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2768
        destrevlog,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2769
        addrevisioncb,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2770
        deltareuse,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2771
        forcedeltabothparents,
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2772
        sidedatacompanion,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2773
    ):
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2774
        """perform the core duty of `revlog.clone` after parameter processing"""
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2775
        deltacomputer = deltautil.deltacomputer(destrevlog)
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2776
        index = self.index
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2777
        for rev in self:
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2778
            entry = index[rev]
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2779
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2780
            # Some classes override linkrev to take filtered revs into
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2781
            # account. Use raw entry from index.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2782
            flags = entry[0] & 0xFFFF
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2783
            linkrev = entry[4]
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2784
            p1 = index[entry[5]][7]
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2785
            p2 = index[entry[6]][7]
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2786
            node = entry[7]
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2787
45735
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2788
            sidedataactions = (False, [], {}, 0, 0)
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2789
            if sidedatacompanion is not None:
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2790
                sidedataactions = sidedatacompanion(self, rev)
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2791
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2792
            # (Possibly) reuse the delta from the revlog if allowed and
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2793
            # the revlog chunk is a delta.
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2794
            cachedelta = None
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2795
            rawtext = None
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2796
            if any(sidedataactions) or deltareuse == self.DELTAREUSEFULLADD:
45735
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2797
                dropall = sidedataactions[0]
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2798
                filterout = sidedataactions[1]
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2799
                update = sidedataactions[2]
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2800
                new_flags = sidedataactions[3]
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2801
                dropped_flags = sidedataactions[4]
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2802
                text, sidedata = self._revisiondata(rev)
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2803
                if dropall:
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2804
                    sidedata = {}
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2805
                for key in filterout:
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2806
                    sidedata.pop(key, None)
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2807
                sidedata.update(update)
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2808
                if not sidedata:
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2809
                    sidedata = None
45735
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2810
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2811
                flags |= new_flags
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2812
                flags &= ~dropped_flags
edf4fa06df94 upgrade: allow sidedata upgrade to modify revision flag
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 45671
diff changeset
  2813
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2814
                destrevlog.addrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2815
                    text,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2816
                    tr,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2817
                    linkrev,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2818
                    p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2819
                    p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2820
                    cachedelta=cachedelta,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2821
                    node=node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2822
                    flags=flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2823
                    deltacomputer=deltacomputer,
43133
3de4d13f22be revlog: add a way to control sidedata changes during revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 43117
diff changeset
  2824
                    sidedata=sidedata,
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2825
                )
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2826
            else:
42998
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2827
                if destrevlog._lazydelta:
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2828
                    dp = self.deltaparent(rev)
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2829
                    if dp != nullrev:
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2830
                        cachedelta = (dp, bytes(self._chunk(rev)))
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2831
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2832
                if not cachedelta:
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2833
                    rawtext = self.rawdata(rev)
8a31294fa25c upgrade: fix DELTAREUSEFULLADD implementation in revlog.clone
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42997
diff changeset
  2834
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2835
                ifh = destrevlog.opener(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2836
                    destrevlog.indexfile, b'a+', checkambig=False
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2837
                )
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2838
                dfh = None
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2839
                if not destrevlog._inline:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2840
                    dfh = destrevlog.opener(destrevlog.datafile, b'a+')
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2841
                try:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2842
                    destrevlog._addrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2843
                        node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2844
                        rawtext,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2845
                        tr,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2846
                        linkrev,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2847
                        p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2848
                        p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2849
                        flags,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2850
                        cachedelta,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2851
                        ifh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2852
                        dfh,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2853
                        deltacomputer=deltacomputer,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2854
                    )
42996
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2855
                finally:
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2856
                    if dfh:
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2857
                        dfh.close()
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2858
                    ifh.close()
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2859
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2860
            if addrevisioncb:
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2861
                addrevisioncb(self, rev, node)
4f2315cce1db upgrade: move most of revlog.clone method into a _clone method
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42995
diff changeset
  2862
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2863
    def censorrevision(self, tr, censornode, tombstone=b''):
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2864
        if (self.version & 0xFFFF) == REVLOGV0:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2865
            raise error.RevlogError(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2866
                _(b'cannot censor with version %d revlogs') % self.version
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2867
            )
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2868
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2869
        censorrev = self.rev(censornode)
39878
3e896b51aa5d storageutil: move metadata parsing and packing from revlog (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39877
diff changeset
  2870
        tombstone = storageutil.packmeta({b'censored': tombstone}, b'')
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2871
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2872
        if len(tombstone) > self.rawsize(censorrev):
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2873
            raise error.Abort(
43117
8ff1ecfadcd1 cleanup: join string literals that are already on one line
Martin von Zweigbergk <martinvonz@google.com>
parents: 43106
diff changeset
  2874
                _(b'censor tombstone must be no longer than censored data')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2875
            )
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2876
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2877
        # Rewriting the revlog in place is hard. Our strategy for censoring is
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2878
        # to create a new revlog, copy all revisions to it, then replace the
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2879
        # revlogs on transaction close.
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2880
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2881
        newindexfile = self.indexfile + b'.tmpcensored'
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2882
        newdatafile = self.datafile + b'.tmpcensored'
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2883
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2884
        # This is a bit dangerous. We could easily have a mismatch of state.
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2885
        newrl = revlog(self.opener, newindexfile, newdatafile, censorable=True)
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2886
        newrl.version = self.version
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2887
        newrl._generaldelta = self._generaldelta
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2888
        newrl._io = self._io
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2889
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2890
        for rev in self.revs():
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2891
            node = self.node(rev)
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2892
            p1, p2 = self.parents(node)
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2893
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2894
            if rev == censorrev:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2895
                newrl.addrawrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2896
                    tombstone,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2897
                    tr,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2898
                    self.linkrev(censorrev),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2899
                    p1,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2900
                    p2,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2901
                    censornode,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2902
                    REVIDX_ISCENSORED,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2903
                )
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2904
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2905
                if newrl.deltaparent(rev) != nullrev:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2906
                    raise error.Abort(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2907
                        _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2908
                            b'censored revision stored as delta; '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2909
                            b'cannot censor'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2910
                        ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2911
                        hint=_(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2912
                            b'censoring of revlogs is not '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2913
                            b'fully implemented; please report '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2914
                            b'this bug'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2915
                        ),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2916
                    )
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2917
                continue
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2918
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2919
            if self.iscensored(rev):
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2920
                if self.deltaparent(rev) != nullrev:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2921
                    raise error.Abort(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2922
                        _(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2923
                            b'cannot censor due to censored '
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2924
                            b'revision having delta stored'
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2925
                        )
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2926
                    )
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2927
                rawtext = self._chunk(rev)
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2928
            else:
42768
5a8f2c8edff6 rawdata: update caller in revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42732
diff changeset
  2929
                rawtext = self.rawdata(rev)
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2930
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2931
            newrl.addrawrevision(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2932
                rawtext, tr, self.linkrev(rev), p1, p2, node, self.flags(rev)
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2933
            )
39778
a6b3c4c1019f revlog: move censor logic out of censor extension
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39775
diff changeset
  2934
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2935
        tr.addbackup(self.indexfile, location=b'store')
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2936
        if not self._inline:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2937
            tr.addbackup(self.datafile, location=b'store')
40056
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2938
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2939
        self.opener.rename(newrl.indexfile, self.indexfile)
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2940
        if not self._inline:
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2941
            self.opener.rename(newrl.datafile, self.datafile)
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2942
324b4b10351e revlog: rewrite censoring logic
Gregory Szorc <gregory.szorc@gmail.com>
parents: 40055
diff changeset
  2943
        self.clearcaches()
41204
e3cfe0702eac revlog: inline opener options logic into _loadindex()
Gregory Szorc <gregory.szorc@gmail.com>
parents: 41203
diff changeset
  2944
        self._loadindex()
39842
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2945
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2946
    def verifyintegrity(self, state):
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2947
        """Verifies the integrity of the revlog.
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2948
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2949
        Yields ``revlogproblem`` instances describing problems that are
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2950
        found.
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2951
        """
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2952
        dd, di = self.checksize()
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2953
        if dd:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2954
            yield revlogproblem(error=_(b'data length off by %d bytes') % dd)
39842
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2955
        if di:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2956
            yield revlogproblem(error=_(b'index contains %d extra bytes') % di)
39842
97986c9c69d3 verify: start to abstract file verification
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39831
diff changeset
  2957
39845
e6d3d39cc1c7 revlog: use proper version comparison during verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39842
diff changeset
  2958
        version = self.version & 0xFFFF
e6d3d39cc1c7 revlog: use proper version comparison during verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39842
diff changeset
  2959
e6d3d39cc1c7 revlog: use proper version comparison during verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39842
diff changeset
  2960
        # The verifier tells us what version revlog we should be.
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2961
        if version != state[b'expectedversion']:
39845
e6d3d39cc1c7 revlog: use proper version comparison during verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39842
diff changeset
  2962
            yield revlogproblem(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2963
                warning=_(b"warning: '%s' uses revlog format %d; expected %d")
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2964
                % (self.indexfile, version, state[b'expectedversion'])
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  2965
            )
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  2966
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  2967
        state[b'skipread'] = set()
44073
b9e174d4ed11 verify: allow the storage to signal when renames can be tested on `skipread`
Matt Harbison <matt_harbison@yahoo.com>
parents: 44054
diff changeset
  2968
        state[b'safe_renamed'] = set()
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2969
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2970
        for rev in self:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2971
            node = self.node(rev)
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2972
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2973
            # Verify contents. 4 cases to care about:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2974
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2975
            #   common: the most common case
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2976
            #   rename: with a rename
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2977
            #   meta: file content starts with b'\1\n', the metadata
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2978
            #         header defined in filelog.py, but without a rename
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2979
            #   ext: content stored externally
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2980
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2981
            # More formally, their differences are shown below:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2982
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2983
            #                       | common | rename | meta  | ext
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2984
            #  -------------------------------------------------------
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2985
            #   flags()             | 0      | 0      | 0     | not 0
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2986
            #   renamed()           | False  | True   | False | ?
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2987
            #   rawtext[0:2]=='\1\n'| False  | True   | True  | ?
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2988
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2989
            # "rawtext" means the raw text stored in revlog data, which
42768
5a8f2c8edff6 rawdata: update caller in revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42732
diff changeset
  2990
            # could be retrieved by "rawdata(rev)". "text"
5a8f2c8edff6 rawdata: update caller in revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42732
diff changeset
  2991
            # mentioned below is "revision(rev)".
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2992
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2993
            # There are 3 different lengths stored physically:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2994
            #  1. L1: rawsize, stored in revlog index
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2995
            #  2. L2: len(rawtext), stored in revlog data
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2996
            #  3. L3: len(text), stored in revlog data if flags==0, or
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2997
            #     possibly somewhere else if flags!=0
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2998
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  2999
            # L1 should be equal to L2. L3 could be different from them.
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3000
            # "text" may or may not affect commit hash depending on flag
42732
6d61be152c55 flagutil: move addflagprocessor to the new module (API)
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42731
diff changeset
  3001
            # processors (see flagutil.addflagprocessor).
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3002
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3003
            #              | common  | rename | meta  | ext
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3004
            # -------------------------------------------------
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3005
            #    rawsize() | L1      | L1     | L1    | L1
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3006
            #       size() | L1      | L2-LM  | L1(*) | L1 (?)
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3007
            # len(rawtext) | L2      | L2     | L2    | L2
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3008
            #    len(text) | L2      | L2     | L2    | L3
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3009
            #  len(read()) | L2      | L2-LM  | L2-LM | L3 (?)
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3010
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3011
            # LM:  length of metadata, depending on rawtext
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3012
            # (*): not ideal, see comment in filelog.size
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3013
            # (?): could be "- len(meta)" if the resolved content has
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3014
            #      rename metadata
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3015
            #
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3016
            # Checks needed to be done:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3017
            #  1. length check: L1 == L2, in all cases.
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3018
            #  2. hash check: depending on flag processor, we may need to
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3019
            #     use either "text" (external), or "rawtext" (in revlog).
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3020
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3021
            try:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3022
                skipflags = state.get(b'skipflags', 0)
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3023
                if skipflags:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3024
                    skipflags &= self.flags(rev)
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3025
43957
7c3118b9a9db revlog: split the content verification of a node into a separate method
Matt Harbison <matt_harbison@yahoo.com>
parents: 43779
diff changeset
  3026
                _verify_revision(self, skipflags, state, node)
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3027
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3028
                l1 = self.rawsize(rev)
42768
5a8f2c8edff6 rawdata: update caller in revlog
Pierre-Yves David <pierre-yves.david@octobus.net>
parents: 42732
diff changeset
  3029
                l2 = len(self.rawdata(node))
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3030
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3031
                if l1 != l2:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3032
                    yield revlogproblem(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3033
                        error=_(b'unpacked size is %d, %d expected') % (l2, l1),
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3034
                        node=node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3035
                    )
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3036
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3037
            except error.CensoredNodeError:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3038
                if state[b'erroroncensored']:
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3039
                    yield revlogproblem(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3040
                        error=_(b'censored file data'), node=node
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3041
                    )
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3042
                    state[b'skipread'].add(node)
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3043
            except Exception as e:
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3044
                yield revlogproblem(
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3045
                    error=_(b'unpacking %s: %s')
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3046
                    % (short(node), stringutil.forcebytestr(e)),
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3047
                    node=node,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3048
                )
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3049
                state[b'skipread'].add(node)
39872
733db72f0f54 revlog: move revision verification out of verify
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39869
diff changeset
  3050
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3051
    def storageinfo(
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3052
        self,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3053
        exclusivefiles=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3054
        sharedfiles=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3055
        revisionscount=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3056
        trackedsize=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3057
        storedsize=False,
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3058
    ):
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3059
        d = {}
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3060
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3061
        if exclusivefiles:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3062
            d[b'exclusivefiles'] = [(self.opener, self.indexfile)]
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3063
            if not self._inline:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3064
                d[b'exclusivefiles'].append((self.opener, self.datafile))
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3065
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3066
        if sharedfiles:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3067
            d[b'sharedfiles'] = []
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3068
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3069
        if revisionscount:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3070
            d[b'revisionscount'] = len(self)
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3071
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3072
        if trackedsize:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3073
            d[b'trackedsize'] = sum(map(self.rawsize, iter(self)))
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3074
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3075
        if storedsize:
43077
687b865b95ad formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents: 43076
diff changeset
  3076
            d[b'storedsize'] = sum(
43076
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3077
                self.opener.stat(path).st_size for path in self.files()
2372284d9457 formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents: 43039
diff changeset
  3078
            )
39869
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3079
14e500b58263 revlog: add method for obtaining storage info (API)
Gregory Szorc <gregory.szorc@gmail.com>
parents: 39866
diff changeset
  3080
        return d