Mercurial > hg
view mercurial/filelog.py @ 49610:35d4c2124073
debug: add an option to display statistic about a unbundling operation
This will helps a lot to understand how the bundling decision have actually
impacted pull/unbundle on the other side.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 17 Oct 2022 22:19:43 +0200 |
parents | 9cac281eb9c0 |
children | 152d9c011bcd |
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# filelog.py - file history class for mercurial # # Copyright 2005-2007 Olivia Mackall <olivia@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. from .i18n import _ from .node import nullrev from . import ( error, revlog, ) from .interfaces import ( repository, util as interfaceutil, ) from .utils import storageutil from .revlogutils import ( constants as revlog_constants, rewrite, ) @interfaceutil.implementer(repository.ifilestorage) class filelog: def __init__(self, opener, path): self._revlog = revlog.revlog( opener, # XXX should use the unencoded path target=(revlog_constants.KIND_FILELOG, path), radix=b'/'.join((b'data', path)), censorable=True, canonical_parent_order=False, # see comment in revlog.py ) # Full name of the user visible file, relative to the repository root. # Used by LFS. self._revlog.filename = path self.nullid = self._revlog.nullid opts = opener.options self._fix_issue6528 = opts.get(b'issue6528.fix-incoming', True) def __len__(self): return len(self._revlog) def __iter__(self): return self._revlog.__iter__() def hasnode(self, node): if node in (self.nullid, nullrev): return False try: self._revlog.rev(node) return True except (TypeError, ValueError, IndexError, error.LookupError): return False def revs(self, start=0, stop=None): return self._revlog.revs(start=start, stop=stop) def parents(self, node): return self._revlog.parents(node) def parentrevs(self, rev): return self._revlog.parentrevs(rev) def rev(self, node): return self._revlog.rev(node) def node(self, rev): return self._revlog.node(rev) def lookup(self, node): return storageutil.fileidlookup( self._revlog, node, self._revlog.display_id ) def linkrev(self, rev): return self._revlog.linkrev(rev) def commonancestorsheads(self, node1, node2): return self._revlog.commonancestorsheads(node1, node2) # Used by dagop.blockdescendants(). def descendants(self, revs): return self._revlog.descendants(revs) def heads(self, start=None, stop=None): return self._revlog.heads(start, stop) # Used by hgweb, children extension. def children(self, node): return self._revlog.children(node) def iscensored(self, rev): return self._revlog.iscensored(rev) def revision(self, node, _df=None): return self._revlog.revision(node, _df=_df) def rawdata(self, node, _df=None): return self._revlog.rawdata(node, _df=_df) def emitrevisions( self, nodes, nodesorder=None, revisiondata=False, assumehaveparentrevisions=False, deltamode=repository.CG_DELTAMODE_STD, sidedata_helpers=None, debug_info=None, ): return self._revlog.emitrevisions( nodes, nodesorder=nodesorder, revisiondata=revisiondata, assumehaveparentrevisions=assumehaveparentrevisions, deltamode=deltamode, sidedata_helpers=sidedata_helpers, debug_info=debug_info, ) def addrevision( self, revisiondata, transaction, linkrev, p1, p2, node=None, flags=revlog.REVIDX_DEFAULT_FLAGS, cachedelta=None, ): return self._revlog.addrevision( revisiondata, transaction, linkrev, p1, p2, node=node, flags=flags, cachedelta=cachedelta, ) def addgroup( self, deltas, linkmapper, transaction, addrevisioncb=None, duplicaterevisioncb=None, maybemissingparents=False, debug_info=None, ): if maybemissingparents: raise error.Abort( _( b'revlog storage does not support missing ' b'parents write mode' ) ) with self._revlog._writing(transaction): if self._fix_issue6528: deltas = rewrite.filter_delta_issue6528(self._revlog, deltas) return self._revlog.addgroup( deltas, linkmapper, transaction, addrevisioncb=addrevisioncb, duplicaterevisioncb=duplicaterevisioncb, debug_info=debug_info, ) def getstrippoint(self, minlink): return self._revlog.getstrippoint(minlink) def strip(self, minlink, transaction): return self._revlog.strip(minlink, transaction) def censorrevision(self, tr, node, tombstone=b''): return self._revlog.censorrevision(tr, node, tombstone=tombstone) def files(self): return self._revlog.files() def read(self, node): return storageutil.filtermetadata(self.revision(node)) def add(self, text, meta, transaction, link, p1=None, p2=None): if meta or text.startswith(b'\1\n'): text = storageutil.packmeta(meta, text) rev = self.addrevision(text, transaction, link, p1, p2) return self.node(rev) def renamed(self, node): return storageutil.filerevisioncopied(self, node) def size(self, rev): """return the size of a given revision""" # for revisions with renames, we have to go the slow way node = self.node(rev) if self.iscensored(rev): return 0 if self.renamed(node): return len(self.read(node)) # XXX if self.read(node).startswith("\1\n"), this returns (size+4) # XXX See also basefilectx.cmp. return self._revlog.size(rev) def cmp(self, node, text): """compare text with a given file revision returns True if text is different than what is stored. """ return not storageutil.filedataequivalent(self, node, text) def verifyintegrity(self, state): return self._revlog.verifyintegrity(state) def storageinfo( self, exclusivefiles=False, sharedfiles=False, revisionscount=False, trackedsize=False, storedsize=False, ): return self._revlog.storageinfo( exclusivefiles=exclusivefiles, sharedfiles=sharedfiles, revisionscount=revisionscount, trackedsize=trackedsize, storedsize=storedsize, ) # Used by repo upgrade. def clone(self, tr, destrevlog, **kwargs): if not isinstance(destrevlog, filelog): msg = b'expected filelog to clone(), not %r' msg %= destrevlog raise error.ProgrammingError(msg) return self._revlog.clone(tr, destrevlog._revlog, **kwargs) class narrowfilelog(filelog): """Filelog variation to be used with narrow stores.""" def __init__(self, opener, path, narrowmatch): super(narrowfilelog, self).__init__(opener, path) self._narrowmatch = narrowmatch def renamed(self, node): res = super(narrowfilelog, self).renamed(node) # Renames that come from outside the narrowspec are problematic # because we may lack the base text for the rename. This can result # in code attempting to walk the ancestry or compute a diff # encountering a missing revision. We address this by silently # removing rename metadata if the source file is outside the # narrow spec. # # A better solution would be to see if the base revision is available, # rather than assuming it isn't. # # An even better solution would be to teach all consumers of rename # metadata that the base revision may not be available. # # TODO consider better ways of doing this. if res and not self._narrowmatch(res[0]): return None return res def size(self, rev): # Because we have a custom renamed() that may lie, we need to call # the base renamed() to report accurate results. node = self.node(rev) if super(narrowfilelog, self).renamed(node): return len(self.read(node)) else: return super(narrowfilelog, self).size(rev) def cmp(self, node, text): # We don't call `super` because narrow parents can be buggy in case of a # ambiguous dirstate. Always take the slow path until there is a better # fix, see issue6150. # Censored files compare against the empty file. if self.iscensored(self.rev(node)): return text != b'' return self.read(node) != text