mercurial/obsolete.py
author Bryan O'Sullivan <bryano@fb.com>
Fri, 30 Nov 2012 15:56:09 -0800
changeset 18020 ec02eef0b686
parent 18001 e02feadd15ea
child 18068 4bec77e62c00
permissions -rw-r--r--
Merge with crew
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# obsolete.py - obsolete markers handling
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#
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# Copyright 2012 Pierre-Yves David <pierre-yves.david@ens-lyon.org>
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#                Logilab SA        <contact@logilab.fr>
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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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"""Obsolete markers handling
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An obsolete marker maps an old changeset to a list of new
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changesets. If the list of new changesets is empty, the old changeset
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is said to be "killed". Otherwise, the old changeset is being
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"replaced" by the new changesets.
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Obsolete markers can be used to record and distribute changeset graph
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transformations performed by history rewriting operations, and help
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building new tools to reconciliate conflicting rewriting actions. To
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facilitate conflicts resolution, markers include various annotations
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besides old and news changeset identifiers, such as creation date or
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author name.
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The old obsoleted changeset is called "precursor" and possible replacements are
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called "successors".  Markers that used changeset X as a precursors are called
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"successor markers of X" because they hold information about the successors of
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X. Markers that use changeset Y as a successors are call "precursor markers of
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Y" because they hold information about the precursors of Y.
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Examples:
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- When changeset A is replacement by a changeset A', one marker is stored:
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    (A, (A'))
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- When changesets A and B are folded into a new changeset C two markers are
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  stored:
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    (A, (C,)) and (B, (C,))
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- When changeset A is simply "pruned" from the graph, a marker in create:
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    (A, ())
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- When changeset A is split into B and C, a single marker are used:
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    (A, (C, C))
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  We use a single marker to distinct the "split" case from the "divergence"
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  case. If two independants operation rewrite the same changeset A in to A' and
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  A'' when have an error case: divergent rewriting. We can detect it because
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  two markers will be created independently:
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  (A, (B,)) and (A, (C,))
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Format
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------
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Markers are stored in an append-only file stored in
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'.hg/store/obsstore'.
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The file starts with a version header:
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- 1 unsigned byte: version number, starting at zero.
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The header is followed by the markers. Each marker is made of:
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- 1 unsigned byte: number of new changesets "R", could be zero.
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- 1 unsigned 32-bits integer: metadata size "M" in bytes.
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- 1 byte: a bit field. It is reserved for flags used in obsolete
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  markers common operations, to avoid repeated decoding of metadata
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  entries.
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- 20 bytes: obsoleted changeset identifier.
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- N*20 bytes: new changesets identifiers.
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- M bytes: metadata as a sequence of nul-terminated strings. Each
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  string contains a key and a value, separated by a color ':', without
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  additional encoding. Keys cannot contain '\0' or ':' and values
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  cannot contain '\0'.
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"""
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import struct
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import util, base85, node
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from i18n import _
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_pack = struct.pack
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_unpack = struct.unpack
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_SEEK_END = 2 # os.SEEK_END was introduced in Python 2.5
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# the obsolete feature is not mature enough to be enabled by default.
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# you have to rely on third party extension extension to enable this.
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_enabled = False
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# data used for parsing and writing
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_fmversion = 0
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_fmfixed   = '>BIB20s'
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_fmnode = '20s'
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_fmfsize = struct.calcsize(_fmfixed)
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_fnodesize = struct.calcsize(_fmnode)
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### obsolescence marker flag
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## bumpedfix flag
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#
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# When a changeset A' succeed to a changeset A which became public, we call A'
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# "bumped" because it's a successors of a public changesets
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#
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# o    A' (bumped)
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# |`:
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# | o  A
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# |/
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# o    Z
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#
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# The way to solve this situation is to create a new changeset Ad as children
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# of A. This changeset have the same content than A'. So the diff from A to A'
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# is the same than the diff from A to Ad. Ad is marked as a successors of A'
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#
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# o   Ad
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# |`:
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# | x A'
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# |'|
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# o | A
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# |/
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# o Z
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#
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# But by transitivity Ad is also a successors of A. To avoid having Ad marked
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# as bumped too, we add the `bumpedfix` flag to the marker. <A', (Ad,)>.
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# This flag mean that the successors are an interdiff that fix the bumped
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# situation, breaking the transitivity of "bumped" here.
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bumpedfix = 1
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def _readmarkers(data):
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    """Read and enumerate markers from raw data"""
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    off = 0
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    diskversion = _unpack('>B', data[off:off + 1])[0]
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    off += 1
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    if diskversion != _fmversion:
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        raise util.Abort(_('parsing obsolete marker: unknown version %r')
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                         % diskversion)
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    # Loop on markers
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    l = len(data)
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    while off + _fmfsize <= l:
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        # read fixed part
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        cur = data[off:off + _fmfsize]
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        off += _fmfsize
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        nbsuc, mdsize, flags, pre = _unpack(_fmfixed, cur)
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        # read replacement
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        sucs = ()
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        if nbsuc:
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            s = (_fnodesize * nbsuc)
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            cur = data[off:off + s]
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            sucs = _unpack(_fmnode * nbsuc, cur)
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            off += s
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        # read metadata
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        # (metadata will be decoded on demand)
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        metadata = data[off:off + mdsize]
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        if len(metadata) != mdsize:
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            raise util.Abort(_('parsing obsolete marker: metadata is too '
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                               'short, %d bytes expected, got %d')
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                             % (mdsize, len(metadata)))
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        off += mdsize
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        yield (pre, sucs, flags, metadata)
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def encodemeta(meta):
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    """Return encoded metadata string to string mapping.
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    Assume no ':' in key and no '\0' in both key and value."""
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    for key, value in meta.iteritems():
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        if ':' in key or '\0' in key:
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            raise ValueError("':' and '\0' are forbidden in metadata key'")
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        if '\0' in value:
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            raise ValueError("':' are forbidden in metadata value'")
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    return '\0'.join(['%s:%s' % (k, meta[k]) for k in sorted(meta)])
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def decodemeta(data):
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    """Return string to string dictionary from encoded version."""
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    d = {}
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    for l in data.split('\0'):
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        if l:
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            key, value = l.split(':')
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            d[key] = value
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    return d
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class marker(object):
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    """Wrap obsolete marker raw data"""
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    def __init__(self, repo, data):
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        # the repo argument will be used to create changectx in later version
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        self._repo = repo
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        self._data = data
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        self._decodedmeta = None
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    def precnode(self):
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        """Precursor changeset node identifier"""
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        return self._data[0]
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    def succnodes(self):
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        """List of successor changesets node identifiers"""
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        return self._data[1]
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   205
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    def metadata(self):
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        """Decoded metadata dictionary"""
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        if self._decodedmeta is None:
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            self._decodedmeta = decodemeta(self._data[3])
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        return self._decodedmeta
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   211
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    def date(self):
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        """Creation date as (unixtime, offset)"""
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        parts = self.metadata()['date'].split(' ')
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        return (float(parts[0]), int(parts[1]))
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   216
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class obsstore(object):
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    """Store obsolete markers
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    Markers can be accessed with two mappings:
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   221
    - precursors[x] -> set(markers on precursors edges of x)
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    - successors[x] -> set(markers on successors edges of x)
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    """
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   225
    def __init__(self, sopener):
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        # caches for various obsolescence related cache
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        self.caches = {}
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        self._all = []
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        # new markers to serialize
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        self.precursors = {}
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        self.successors = {}
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        self.sopener = sopener
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   233
        data = sopener.tryread('obsstore')
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   234
        if data:
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   235
            self._load(_readmarkers(data))
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    def __iter__(self):
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        return iter(self._all)
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   239
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   240
    def __nonzero__(self):
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   241
        return bool(self._all)
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   242
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   243
    def create(self, transaction, prec, succs=(), flag=0, metadata=None):
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        """obsolete: add a new obsolete marker
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   245
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   246
        * ensuring it is hashable
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   247
        * check mandatory metadata
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        * encode metadata
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   249
        """
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   250
        if metadata is None:
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   251
            metadata = {}
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   252
        if len(prec) != 20:
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   253
            raise ValueError(prec)
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        for succ in succs:
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   255
            if len(succ) != 20:
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   256
                raise ValueError(succ)
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        marker = (str(prec), tuple(succs), int(flag), encodemeta(metadata))
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        self.add(transaction, [marker])
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   259
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    def add(self, transaction, markers):
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        """Add new markers to the store
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   263
        Take care of filtering duplicate.
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        Return the number of new marker."""
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   265
        if not _enabled:
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   266
            raise util.Abort('obsolete feature is not enabled on this repo')
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   267
        new = [m for m in markers if m not in self._all]
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   268
        if new:
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parents: 17124
diff changeset
   269
            f = self.sopener('obsstore', 'ab')
17124
f1b7683f3f95 obsolete: move obsolete markers read/write logic to obsstore object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17117
diff changeset
   270
            try:
17195
48c232873a54 obsolete: add seek to end of file before calling tell (issue3543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 17126
diff changeset
   271
                # Whether the file's current position is at the begin or at
48c232873a54 obsolete: add seek to end of file before calling tell (issue3543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 17126
diff changeset
   272
                # the end after opening a file for appending is implementation
48c232873a54 obsolete: add seek to end of file before calling tell (issue3543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 17126
diff changeset
   273
                # defined. So we must seek to the end before calling tell(),
48c232873a54 obsolete: add seek to end of file before calling tell (issue3543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 17126
diff changeset
   274
                # or we may get a zero offset for non-zero sized files on
48c232873a54 obsolete: add seek to end of file before calling tell (issue3543)
Adrian Buehlmann <adrian@cadifra.com>
parents: 17126
diff changeset
   275
                # some platforms (issue3543).
17429
72fa4ef2245f declare local constants instead of using magic values and comments
Mads Kiilerich <mads@kiilerich.com>
parents: 17426
diff changeset
   276
                f.seek(0, _SEEK_END)
17126
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
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parents: 17125
diff changeset
   277
                offset = f.tell()
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   278
                transaction.add('obsstore', offset)
17219
494a970f68de obsolete: refactor writemarkers to only encode them
Pierre-Yves.David@ens-lyon.org
parents: 17213
diff changeset
   279
                # offset == 0: new file - add the version header
17220
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   280
                for bytes in _encodemarkers(new, offset == 0):
17219
494a970f68de obsolete: refactor writemarkers to only encode them
Pierre-Yves.David@ens-lyon.org
parents: 17213
diff changeset
   281
                    f.write(bytes)
17126
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
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parents: 17125
diff changeset
   282
            finally:
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
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parents: 17125
diff changeset
   283
                # XXX: f.close() == filecache invalidation == obsstore rebuilt.
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   284
                # call 'filecacheentry.refresh()'  here
17124
f1b7683f3f95 obsolete: move obsolete markers read/write logic to obsstore object
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17117
diff changeset
   285
                f.close()
17220
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   286
            self._load(new)
17469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   287
            # new marker *may* have changed several set. invalidate the cache.
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   288
            self.caches.clear()
17220
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   289
        return len(new)
17126
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   290
17524
a736e1e15e46 spelling: transaction
timeless@mozdev.org
parents: 17516
diff changeset
   291
    def mergemarkers(self, transaction, data):
17220
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   292
        markers = _readmarkers(data)
17524
a736e1e15e46 spelling: transaction
timeless@mozdev.org
parents: 17516
diff changeset
   293
        self.add(transaction, markers)
17070
ad0d6c2b3279 obsolete: introduction of obsolete markers
Pierre-Yves.David@ens-lyon.org
parents:
diff changeset
   294
17220
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   295
    def _load(self, markers):
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   296
        for mark in markers:
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   297
            self._all.append(mark)
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   298
            pre, sucs = mark[:2]
17776
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   299
            self.successors.setdefault(pre, set()).add(mark)
17220
bdac214a4705 obsolete: obsstore.add now takes a list of markers.
Pierre-Yves.David@ens-lyon.org
parents: 17219
diff changeset
   300
            for suc in sucs:
17776
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   301
                self.precursors.setdefault(suc, set()).add(mark)
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   302
        if node.nullid in self.precursors:
17774
0496d4f73cf4 obsolete: cheap detection of nullid as successors
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
   303
            raise util.Abort(_('bad obsolescence marker detected: '
0496d4f73cf4 obsolete: cheap detection of nullid as successors
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17537
diff changeset
   304
                               'invalid successors nullid'))
17070
ad0d6c2b3279 obsolete: introduction of obsolete markers
Pierre-Yves.David@ens-lyon.org
parents:
diff changeset
   305
17219
494a970f68de obsolete: refactor writemarkers to only encode them
Pierre-Yves.David@ens-lyon.org
parents: 17213
diff changeset
   306
def _encodemarkers(markers, addheader=False):
17125
95d785ccb4e5 obsolete: append new markers to obsstore file instead of rewriting everything
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17124
diff changeset
   307
    # Kept separate from flushmarkers(), it will be reused for
95d785ccb4e5 obsolete: append new markers to obsstore file instead of rewriting everything
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17124
diff changeset
   308
    # markers exchange.
17219
494a970f68de obsolete: refactor writemarkers to only encode them
Pierre-Yves.David@ens-lyon.org
parents: 17213
diff changeset
   309
    if addheader:
494a970f68de obsolete: refactor writemarkers to only encode them
Pierre-Yves.David@ens-lyon.org
parents: 17213
diff changeset
   310
        yield _pack('>B', _fmversion)
17125
95d785ccb4e5 obsolete: append new markers to obsstore file instead of rewriting everything
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17124
diff changeset
   311
    for marker in markers:
17295
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   312
        yield _encodeonemarker(marker)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   313
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   314
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   315
def _encodeonemarker(marker):
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   316
    pre, sucs, flags, metadata = marker
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   317
    nbsuc = len(sucs)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   318
    format = _fmfixed + (_fmnode * nbsuc)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   319
    data = [nbsuc, len(metadata), flags, pre]
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   320
    data.extend(sucs)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   321
    return _pack(format, *data) + metadata
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   322
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   323
# arbitrary picked to fit into 8K limit from HTTP server
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   324
# you have to take in account:
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   325
# - the version header
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   326
# - the base85 encoding
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   327
_maxpayload = 5300
17075
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   328
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   329
def listmarkers(repo):
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   330
    """List markers over pushkey"""
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   331
    if not repo.obsstore:
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   332
        return {}
17295
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   333
    keys = {}
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   334
    parts = []
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   335
    currentlen = _maxpayload * 2  # ensure we create a new part
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   336
    for marker in  repo.obsstore:
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   337
        nextdata = _encodeonemarker(marker)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   338
        if (len(nextdata) + currentlen > _maxpayload):
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   339
            currentpart = []
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   340
            currentlen = 0
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   341
            parts.append(currentpart)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   342
        currentpart.append(nextdata)
17304
0368fc55d572 obsolete: properly increment currentlen when building pushkey payload
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17298
diff changeset
   343
        currentlen += len(nextdata)
17295
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   344
    for idx, part in enumerate(reversed(parts)):
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   345
        data = ''.join([_pack('>B', _fmversion)] + part)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   346
        keys['dump%i' % idx] = base85.b85encode(data)
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   347
    return keys
17073
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   348
17075
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   349
def pushmarker(repo, key, old, new):
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   350
    """Push markers over pushkey"""
17295
1f08ecc7febb pushkey: splits obsolete marker exchange into multiple keys
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17253
diff changeset
   351
    if not key.startswith('dump'):
17075
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   352
        repo.ui.warn(_('unknown key: %r') % key)
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   353
        return 0
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   354
    if old:
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   355
        repo.ui.warn(_('unexpected old value') % key)
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   356
        return 0
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   357
    data = base85.b85decode(new)
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   358
    lock = repo.lock()
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   359
    try:
17126
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   360
        tr = repo.transaction('pushkey: obsolete markers')
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   361
        try:
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   362
            repo.obsstore.mergemarkers(tr, data)
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   363
            tr.close()
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   364
            return 1
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   365
        finally:
8fa8717b47b6 obsolete: write obsolete marker inside a transaction
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17125
diff changeset
   366
            tr.release()
17075
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   367
    finally:
28ed1c4511ce obsolete: exchange obsolete marker over pushkey
Pierre-Yves.David@ens-lyon.org
parents: 17073
diff changeset
   368
        lock.release()
17073
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   369
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   370
def allmarkers(repo):
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   371
    """all obsolete markers known in a repository"""
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   372
    for markerdata in repo.obsstore:
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   373
        yield marker(repo, markerdata)
3a79a5682af1 obsolete: add easy way to iterate over obsolete marker object
Pierre-Yves.David@ens-lyon.org
parents: 17072
diff changeset
   374
17076
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   375
def precursormarkers(ctx):
17776
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   376
    """obsolete marker marking this changeset as a successors"""
17076
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   377
    for data in ctx._repo.obsstore.precursors.get(ctx.node(), ()):
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   378
        yield marker(ctx._repo, data)
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   379
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   380
def successormarkers(ctx):
17776
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   381
    """obsolete marker making this changeset obsolete"""
17076
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   382
    for data in ctx._repo.obsstore.successors.get(ctx.node(), ()):
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   383
        yield marker(ctx._repo, data)
75f4180509a4 obsolete: function and method to access some obsolete data
Pierre-Yves.David@ens-lyon.org
parents: 17075
diff changeset
   384
17831
70b08df24fef obsolete: add a flag that allows fixing "bumped" changeset
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17828
diff changeset
   385
def allsuccessors(obsstore, nodes, ignoreflags=0):
17827
612db9d7e76a obsolete: have `allsuccessors` takes a list of nodes
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17826
diff changeset
   386
    """Yield node for every successor of <nodes>.
612db9d7e76a obsolete: have `allsuccessors` takes a list of nodes
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17826
diff changeset
   387
612db9d7e76a obsolete: have `allsuccessors` takes a list of nodes
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17826
diff changeset
   388
    Some successors may be unknown locally.
17213
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   389
17537
31f32a96e1e3 Merge spelling fixes
Bryan O'Sullivan <bryano@fb.com>
parents: 17474 17524
diff changeset
   390
    This is a linear yield unsuited to detecting split changesets."""
17827
612db9d7e76a obsolete: have `allsuccessors` takes a list of nodes
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17826
diff changeset
   391
    remaining = set(nodes)
17213
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   392
    seen = set(remaining)
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   393
    while remaining:
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   394
        current = remaining.pop()
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   395
        yield current
17776
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   396
        for mark in obsstore.successors.get(current, ()):
17831
70b08df24fef obsolete: add a flag that allows fixing "bumped" changeset
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17828
diff changeset
   397
            # ignore marker flagged with with specified flag
70b08df24fef obsolete: add a flag that allows fixing "bumped" changeset
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17828
diff changeset
   398
            if mark[2] & ignoreflags:
70b08df24fef obsolete: add a flag that allows fixing "bumped" changeset
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17828
diff changeset
   399
                continue
17213
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   400
            for suc in mark[1]:
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   401
                if suc not in seen:
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   402
                    seen.add(suc)
7eb5aa1f83fd obsolete: add an any successors function
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17200
diff changeset
   403
                    remaining.add(suc)
17469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   404
17828
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   405
def _knownrevs(repo, nodes):
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   406
    """yield revision numbers of known nodes passed in parameters
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   407
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   408
    Unknown revisions are silently ignored."""
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   409
    torev = repo.changelog.nodemap.get
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   410
    for n in nodes:
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   411
        rev = torev(n)
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   412
        if rev is not None:
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   413
            yield rev
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   414
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   415
# mapping of 'set-name' -> <function to compute this set>
17469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   416
cachefuncs = {}
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   417
def cachefor(name):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   418
    """Decorator to register a function as computing the cache for a set"""
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   419
    def decorator(func):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   420
        assert name not in cachefuncs
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   421
        cachefuncs[name] = func
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   422
        return func
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   423
    return decorator
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   424
17825
3cc06457f15e obsolete: rename `getobscache` into `getrevs`
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17776
diff changeset
   425
def getrevs(repo, name):
17469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   426
    """Return the set of revision that belong to the <name> set
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   427
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   428
    Such access may compute the set and cache it for future use"""
18001
e02feadd15ea clfilter: unfilter computation of obsolescence related computation
Pierre-Yves David <pierre-yves.david@ens-lyon.org>
parents: 17831
diff changeset
   429
    repo = repo.unfiltered()
17469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   430
    if not repo.obsstore:
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   431
        return ()
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   432
    if name not in repo.obsstore.caches:
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   433
        repo.obsstore.caches[name] = cachefuncs[name](repo)
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   434
    return repo.obsstore.caches[name]
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   435
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   436
# To be simple we need to invalidate obsolescence cache when:
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   437
#
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   438
# - new changeset is added:
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   439
# - public phase is changed
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   440
# - obsolescence marker are added
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   441
# - strip is used a repo
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   442
def clearobscaches(repo):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   443
    """Remove all obsolescence related cache from a repo
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   444
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   445
    This remove all cache in obsstore is the obsstore already exist on the
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   446
    repo.
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   447
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   448
    (We could be smarter here given the exact event that trigger the cache
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   449
    clearing)"""
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   450
    # only clear cache is there is obsstore data in this repo
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   451
    if 'obsstore' in repo._filecache:
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   452
        repo.obsstore.caches.clear()
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   453
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   454
@cachefor('obsolete')
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   455
def _computeobsoleteset(repo):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   456
    """the set of obsolete revisions"""
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   457
    obs = set()
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   458
    nm = repo.changelog.nodemap
17776
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   459
    for node in repo.obsstore.successors:
072812e9f570 obsolete: flip `obstore.successors` and `obsolete.precursors`
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17775
diff changeset
   460
        rev = nm.get(node)
17469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   461
        if rev is not None:
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   462
            obs.add(rev)
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   463
    return set(repo.revs('%ld - public()', obs))
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   464
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   465
@cachefor('unstable')
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   466
def _computeunstableset(repo):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   467
    """the set of non obsolete revisions with obsolete parents"""
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   468
    return set(repo.revs('(obsolete()::) - obsolete()'))
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   469
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   470
@cachefor('suspended')
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   471
def _computesuspendedset(repo):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   472
    """the set of obsolete parents with non obsolete descendants"""
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   473
    return set(repo.revs('obsolete() and obsolete()::unstable()'))
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   474
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   475
@cachefor('extinct')
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   476
def _computeextinctset(repo):
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   477
    """the set of obsolete parents without non obsolete descendants"""
fb72eec7efd8 obsolete: introduce caches for all meaningful sets
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17429
diff changeset
   478
    return set(repo.revs('obsolete() - obsolete()::unstable()'))
17474
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   479
17828
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   480
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   481
@cachefor('bumped')
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   482
def _computebumpedset(repo):
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   483
    """the set of revs trying to obsolete public revisions"""
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   484
    # get all possible bumped changesets
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   485
    tonode = repo.changelog.node
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   486
    publicnodes = (tonode(r) for r in repo.revs('public()'))
17831
70b08df24fef obsolete: add a flag that allows fixing "bumped" changeset
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17828
diff changeset
   487
    successors = allsuccessors(repo.obsstore, publicnodes,
70b08df24fef obsolete: add a flag that allows fixing "bumped" changeset
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17828
diff changeset
   488
                               ignoreflags=bumpedfix)
17828
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   489
    # revision public or already obsolete don't count as bumped
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   490
    query = '%ld - obsolete() - public()'
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   491
    return set(repo.revs(query, _knownrevs(repo, successors)))
9495be4126ef obsolete: add the detection of bumped changeset.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17827
diff changeset
   492
17474
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   493
def createmarkers(repo, relations, flag=0, metadata=None):
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   494
    """Add obsolete markers between changesets in a repo
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   495
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   496
    <relations> must be an iterable of (<old>, (<new>, ...)) tuple.
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   497
    `old` and `news` are changectx.
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   498
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   499
    Trying to obsolete a public changeset will raise an exception.
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   500
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   501
    Current user and date are used except if specified otherwise in the
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   502
    metadata attribute.
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   503
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   504
    This function operates within a transaction of its own, but does
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   505
    not take any lock on the repo.
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   506
    """
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   507
    # prepare metadata
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   508
    if metadata is None:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   509
        metadata = {}
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   510
    if 'date' not in metadata:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   511
        metadata['date'] = '%i %i' % util.makedate()
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   512
    if 'user' not in metadata:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   513
        metadata['user'] = repo.ui.username()
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   514
    tr = repo.transaction('add-obsolescence-marker')
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   515
    try:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   516
        for prec, sucs in relations:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   517
            if not prec.mutable():
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   518
                raise util.Abort("cannot obsolete immutable changeset: %s"
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   519
                                 % prec)
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   520
            nprec = prec.node()
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   521
            nsucs = tuple(s.node() for s in sucs)
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   522
            if nprec in nsucs:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   523
                raise util.Abort("changeset %s cannot obsolete itself" % prec)
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   524
            repo.obsstore.create(tr, nprec, nsucs, flag, metadata)
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   525
        tr.close()
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   526
    finally:
f85816af6294 obsolete: add a high level function to create an obsolete marker
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 17469
diff changeset
   527
        tr.release()