818 lines
27 KiB
Python
818 lines
27 KiB
Python
# context.py - changeset and file context objects for mercurial
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#
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# Copyright 2006, 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, incorporated herein by reference.
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from node import nullid, nullrev, short, hex
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from i18n import _
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import ancestor, bdiff, error, util, subrepo
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import os, errno
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propertycache = util.propertycache
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class changectx(object):
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"""A changecontext object makes access to data related to a particular
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changeset convenient."""
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def __init__(self, repo, changeid=''):
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"""changeid is a revision number, node, or tag"""
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if changeid == '':
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changeid = '.'
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self._repo = repo
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if isinstance(changeid, (long, int)):
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self._rev = changeid
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self._node = self._repo.changelog.node(changeid)
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else:
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self._node = self._repo.lookup(changeid)
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self._rev = self._repo.changelog.rev(self._node)
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def __str__(self):
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return short(self.node())
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def __int__(self):
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return self.rev()
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def __repr__(self):
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return "<changectx %s>" % str(self)
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def __hash__(self):
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try:
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return hash(self._rev)
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except AttributeError:
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return id(self)
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def __eq__(self, other):
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try:
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return self._rev == other._rev
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except AttributeError:
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return False
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def __ne__(self, other):
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return not (self == other)
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def __nonzero__(self):
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return self._rev != nullrev
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@propertycache
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def _changeset(self):
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return self._repo.changelog.read(self.node())
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@propertycache
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def _manifest(self):
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return self._repo.manifest.read(self._changeset[0])
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@propertycache
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def _manifestdelta(self):
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return self._repo.manifest.readdelta(self._changeset[0])
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@propertycache
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def _parents(self):
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p = self._repo.changelog.parentrevs(self._rev)
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if p[1] == nullrev:
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p = p[:-1]
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return [changectx(self._repo, x) for x in p]
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@propertycache
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def substate(self):
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return subrepo.state(self)
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def __contains__(self, key):
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return key in self._manifest
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def __getitem__(self, key):
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return self.filectx(key)
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def __iter__(self):
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for f in sorted(self._manifest):
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yield f
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def changeset(self): return self._changeset
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def manifest(self): return self._manifest
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def manifestnode(self): return self._changeset[0]
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def rev(self): return self._rev
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def node(self): return self._node
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def hex(self): return hex(self._node)
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def user(self): return self._changeset[1]
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def date(self): return self._changeset[2]
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def files(self): return self._changeset[3]
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def description(self): return self._changeset[4]
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def branch(self): return self._changeset[5].get("branch")
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def extra(self): return self._changeset[5]
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def tags(self): return self._repo.nodetags(self._node)
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def parents(self):
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"""return contexts for each parent changeset"""
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return self._parents
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def p1(self):
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return self._parents[0]
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def p2(self):
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if len(self._parents) == 2:
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return self._parents[1]
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return changectx(self._repo, -1)
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def children(self):
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"""return contexts for each child changeset"""
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c = self._repo.changelog.children(self._node)
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return [changectx(self._repo, x) for x in c]
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def ancestors(self):
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for a in self._repo.changelog.ancestors(self._rev):
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yield changectx(self._repo, a)
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def descendants(self):
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for d in self._repo.changelog.descendants(self._rev):
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yield changectx(self._repo, d)
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def _fileinfo(self, path):
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if '_manifest' in self.__dict__:
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try:
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return self._manifest[path], self._manifest.flags(path)
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except KeyError:
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raise error.LookupError(self._node, path,
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_('not found in manifest'))
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if '_manifestdelta' in self.__dict__ or path in self.files():
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if path in self._manifestdelta:
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return self._manifestdelta[path], self._manifestdelta.flags(path)
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node, flag = self._repo.manifest.find(self._changeset[0], path)
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if not node:
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raise error.LookupError(self._node, path,
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_('not found in manifest'))
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return node, flag
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def filenode(self, path):
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return self._fileinfo(path)[0]
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def flags(self, path):
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try:
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return self._fileinfo(path)[1]
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except error.LookupError:
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return ''
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def filectx(self, path, fileid=None, filelog=None):
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"""get a file context from this changeset"""
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if fileid is None:
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fileid = self.filenode(path)
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return filectx(self._repo, path, fileid=fileid,
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changectx=self, filelog=filelog)
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def ancestor(self, c2):
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"""
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return the ancestor context of self and c2
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"""
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n = self._repo.changelog.ancestor(self._node, c2._node)
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return changectx(self._repo, n)
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def walk(self, match):
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fset = set(match.files())
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# for dirstate.walk, files=['.'] means "walk the whole tree".
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# follow that here, too
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fset.discard('.')
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for fn in self:
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for ffn in fset:
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# match if the file is the exact name or a directory
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if ffn == fn or fn.startswith("%s/" % ffn):
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fset.remove(ffn)
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break
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if match(fn):
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yield fn
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for fn in sorted(fset):
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if match.bad(fn, 'No such file in rev ' + str(self)) and match(fn):
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yield fn
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def sub(self, path):
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return subrepo.subrepo(self, path)
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class filectx(object):
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"""A filecontext object makes access to data related to a particular
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filerevision convenient."""
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def __init__(self, repo, path, changeid=None, fileid=None,
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filelog=None, changectx=None):
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"""changeid can be a changeset revision, node, or tag.
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fileid can be a file revision or node."""
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self._repo = repo
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self._path = path
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assert (changeid is not None
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or fileid is not None
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or changectx is not None), \
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("bad args: changeid=%r, fileid=%r, changectx=%r"
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% (changeid, fileid, changectx))
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if filelog:
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self._filelog = filelog
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if changeid is not None:
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self._changeid = changeid
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if changectx is not None:
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self._changectx = changectx
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if fileid is not None:
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self._fileid = fileid
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@propertycache
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def _changectx(self):
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return changectx(self._repo, self._changeid)
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@propertycache
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def _filelog(self):
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return self._repo.file(self._path)
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@propertycache
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def _changeid(self):
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if '_changectx' in self.__dict__:
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return self._changectx.rev()
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else:
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return self._filelog.linkrev(self._filerev)
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@propertycache
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def _filenode(self):
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if '_fileid' in self.__dict__:
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return self._filelog.lookup(self._fileid)
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else:
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return self._changectx.filenode(self._path)
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@propertycache
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def _filerev(self):
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return self._filelog.rev(self._filenode)
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@propertycache
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def _repopath(self):
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return self._path
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def __nonzero__(self):
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try:
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self._filenode
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return True
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except error.LookupError:
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# file is missing
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return False
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def __str__(self):
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return "%s@%s" % (self.path(), short(self.node()))
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def __repr__(self):
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return "<filectx %s>" % str(self)
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def __hash__(self):
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try:
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return hash((self._path, self._fileid))
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except AttributeError:
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return id(self)
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def __eq__(self, other):
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try:
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return (self._path == other._path
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and self._fileid == other._fileid)
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except AttributeError:
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return False
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def __ne__(self, other):
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return not (self == other)
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def filectx(self, fileid):
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'''opens an arbitrary revision of the file without
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opening a new filelog'''
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return filectx(self._repo, self._path, fileid=fileid,
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filelog=self._filelog)
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def filerev(self): return self._filerev
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def filenode(self): return self._filenode
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def flags(self): return self._changectx.flags(self._path)
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def filelog(self): return self._filelog
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def rev(self):
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if '_changectx' in self.__dict__:
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return self._changectx.rev()
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if '_changeid' in self.__dict__:
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return self._changectx.rev()
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return self._filelog.linkrev(self._filerev)
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def linkrev(self): return self._filelog.linkrev(self._filerev)
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def node(self): return self._changectx.node()
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def hex(self): return hex(self.node())
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def user(self): return self._changectx.user()
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def date(self): return self._changectx.date()
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def files(self): return self._changectx.files()
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def description(self): return self._changectx.description()
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def branch(self): return self._changectx.branch()
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def manifest(self): return self._changectx.manifest()
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def changectx(self): return self._changectx
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def data(self): return self._filelog.read(self._filenode)
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def path(self): return self._path
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def size(self): return self._filelog.size(self._filerev)
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def cmp(self, text): return self._filelog.cmp(self._filenode, text)
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def renamed(self):
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"""check if file was actually renamed in this changeset revision
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If rename logged in file revision, we report copy for changeset only
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if file revisions linkrev points back to the changeset in question
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or both changeset parents contain different file revisions.
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"""
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renamed = self._filelog.renamed(self._filenode)
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if not renamed:
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return renamed
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if self.rev() == self.linkrev():
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return renamed
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name = self.path()
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fnode = self._filenode
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for p in self._changectx.parents():
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try:
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if fnode == p.filenode(name):
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return None
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except error.LookupError:
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pass
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return renamed
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def parents(self):
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p = self._path
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fl = self._filelog
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pl = [(p, n, fl) for n in self._filelog.parents(self._filenode)]
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r = self._filelog.renamed(self._filenode)
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if r:
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pl[0] = (r[0], r[1], None)
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return [filectx(self._repo, p, fileid=n, filelog=l)
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for p,n,l in pl if n != nullid]
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def children(self):
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# hard for renames
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c = self._filelog.children(self._filenode)
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return [filectx(self._repo, self._path, fileid=x,
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filelog=self._filelog) for x in c]
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def annotate(self, follow=False, linenumber=None):
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'''returns a list of tuples of (ctx, line) for each line
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in the file, where ctx is the filectx of the node where
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that line was last changed.
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This returns tuples of ((ctx, linenumber), line) for each line,
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if "linenumber" parameter is NOT "None".
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In such tuples, linenumber means one at the first appearance
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in the managed file.
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To reduce annotation cost,
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this returns fixed value(False is used) as linenumber,
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if "linenumber" parameter is "False".'''
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def decorate_compat(text, rev):
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return ([rev] * len(text.splitlines()), text)
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def without_linenumber(text, rev):
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return ([(rev, False)] * len(text.splitlines()), text)
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def with_linenumber(text, rev):
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size = len(text.splitlines())
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return ([(rev, i) for i in xrange(1, size + 1)], text)
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decorate = (((linenumber is None) and decorate_compat) or
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(linenumber and with_linenumber) or
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without_linenumber)
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def pair(parent, child):
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for a1, a2, b1, b2 in bdiff.blocks(parent[1], child[1]):
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child[0][b1:b2] = parent[0][a1:a2]
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return child
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getlog = util.lrucachefunc(lambda x: self._repo.file(x))
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def getctx(path, fileid):
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log = path == self._path and self._filelog or getlog(path)
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return filectx(self._repo, path, fileid=fileid, filelog=log)
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getctx = util.lrucachefunc(getctx)
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def parents(f):
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# we want to reuse filectx objects as much as possible
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p = f._path
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if f._filerev is None: # working dir
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pl = [(n.path(), n.filerev()) for n in f.parents()]
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else:
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pl = [(p, n) for n in f._filelog.parentrevs(f._filerev)]
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if follow:
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r = f.renamed()
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if r:
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pl[0] = (r[0], getlog(r[0]).rev(r[1]))
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return [getctx(p, n) for p, n in pl if n != nullrev]
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# use linkrev to find the first changeset where self appeared
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if self.rev() != self.linkrev():
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base = self.filectx(self.filerev())
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else:
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base = self
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# find all ancestors
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needed = {base: 1}
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visit = [base]
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files = [base._path]
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while visit:
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f = visit.pop(0)
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for p in parents(f):
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if p not in needed:
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needed[p] = 1
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visit.append(p)
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if p._path not in files:
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files.append(p._path)
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else:
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# count how many times we'll use this
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needed[p] += 1
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# sort by revision (per file) which is a topological order
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visit = []
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for f in files:
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fn = [(n.rev(), n) for n in needed if n._path == f]
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visit.extend(fn)
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hist = {}
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for r, f in sorted(visit):
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curr = decorate(f.data(), f)
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for p in parents(f):
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if p != nullid:
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curr = pair(hist[p], curr)
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# trim the history of unneeded revs
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needed[p] -= 1
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if not needed[p]:
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del hist[p]
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hist[f] = curr
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return zip(hist[f][0], hist[f][1].splitlines(True))
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def ancestor(self, fc2):
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"""
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find the common ancestor file context, if any, of self, and fc2
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"""
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acache = {}
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# prime the ancestor cache for the working directory
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for c in (self, fc2):
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if c._filerev is None:
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pl = [(n.path(), n.filenode()) for n in c.parents()]
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acache[(c._path, None)] = pl
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flcache = {self._repopath:self._filelog, fc2._repopath:fc2._filelog}
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def parents(vertex):
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if vertex in acache:
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return acache[vertex]
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f, n = vertex
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if f not in flcache:
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flcache[f] = self._repo.file(f)
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fl = flcache[f]
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pl = [(f, p) for p in fl.parents(n) if p != nullid]
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re = fl.renamed(n)
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if re:
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pl.append(re)
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acache[vertex] = pl
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return pl
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a, b = (self._path, self._filenode), (fc2._path, fc2._filenode)
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v = ancestor.ancestor(a, b, parents)
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if v:
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f, n = v
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return filectx(self._repo, f, fileid=n, filelog=flcache[f])
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return None
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class workingctx(changectx):
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"""A workingctx object makes access to data related to
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the current working directory convenient.
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parents - a pair of parent nodeids, or None to use the dirstate.
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date - any valid date string or (unixtime, offset), or None.
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user - username string, or None.
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extra - a dictionary of extra values, or None.
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changes - a list of file lists as returned by localrepo.status()
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or None to use the repository status.
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"""
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def __init__(self, repo, parents=None, text="", user=None, date=None,
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extra=None, changes=None):
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self._repo = repo
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self._rev = None
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self._node = None
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self._text = text
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if date:
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self._date = util.parsedate(date)
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if user:
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self._user = user
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if parents:
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self._parents = [changectx(self._repo, p) for p in parents]
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if changes:
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self._status = list(changes)
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self._extra = {}
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if extra:
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self._extra = extra.copy()
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if 'branch' not in self._extra:
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branch = self._repo.dirstate.branch()
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try:
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branch = branch.decode('UTF-8').encode('UTF-8')
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except UnicodeDecodeError:
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raise util.Abort(_('branch name not in UTF-8!'))
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self._extra['branch'] = branch
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if self._extra['branch'] == '':
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self._extra['branch'] = 'default'
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def __str__(self):
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return str(self._parents[0]) + "+"
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def __nonzero__(self):
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return True
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def __contains__(self, key):
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return self._repo.dirstate[key] not in "?r"
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@propertycache
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def _manifest(self):
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"""generate a manifest corresponding to the working directory"""
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man = self._parents[0].manifest().copy()
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|
copied = self._repo.dirstate.copies()
|
|
cf = lambda x: man.flags(copied.get(x, x))
|
|
ff = self._repo.dirstate.flagfunc(cf)
|
|
modified, added, removed, deleted, unknown = self._status[:5]
|
|
for i, l in (("a", added), ("m", modified), ("u", unknown)):
|
|
for f in l:
|
|
man[f] = man.get(copied.get(f, f), nullid) + i
|
|
try:
|
|
man.set(f, ff(f))
|
|
except OSError:
|
|
pass
|
|
|
|
for f in deleted + removed:
|
|
if f in man:
|
|
del man[f]
|
|
|
|
return man
|
|
|
|
@propertycache
|
|
def _status(self):
|
|
return self._repo.status(unknown=True)
|
|
|
|
@propertycache
|
|
def _user(self):
|
|
return self._repo.ui.username()
|
|
|
|
@propertycache
|
|
def _date(self):
|
|
return util.makedate()
|
|
|
|
@propertycache
|
|
def _parents(self):
|
|
p = self._repo.dirstate.parents()
|
|
if p[1] == nullid:
|
|
p = p[:-1]
|
|
self._parents = [changectx(self._repo, x) for x in p]
|
|
return self._parents
|
|
|
|
def manifest(self): return self._manifest
|
|
|
|
def user(self): return self._user or self._repo.ui.username()
|
|
def date(self): return self._date
|
|
def description(self): return self._text
|
|
def files(self):
|
|
return sorted(self._status[0] + self._status[1] + self._status[2])
|
|
|
|
def modified(self): return self._status[0]
|
|
def added(self): return self._status[1]
|
|
def removed(self): return self._status[2]
|
|
def deleted(self): return self._status[3]
|
|
def unknown(self): return self._status[4]
|
|
def clean(self): return self._status[5]
|
|
def branch(self): return self._extra['branch']
|
|
def extra(self): return self._extra
|
|
|
|
def tags(self):
|
|
t = []
|
|
[t.extend(p.tags()) for p in self.parents()]
|
|
return t
|
|
|
|
def children(self):
|
|
return []
|
|
|
|
def flags(self, path):
|
|
if '_manifest' in self.__dict__:
|
|
try:
|
|
return self._manifest.flags(path)
|
|
except KeyError:
|
|
return ''
|
|
|
|
pnode = self._parents[0].changeset()[0]
|
|
orig = self._repo.dirstate.copies().get(path, path)
|
|
node, flag = self._repo.manifest.find(pnode, orig)
|
|
try:
|
|
ff = self._repo.dirstate.flagfunc(lambda x: flag or '')
|
|
return ff(path)
|
|
except OSError:
|
|
pass
|
|
|
|
if not node or path in self.deleted() or path in self.removed():
|
|
return ''
|
|
return flag
|
|
|
|
def filectx(self, path, filelog=None):
|
|
"""get a file context from the working directory"""
|
|
return workingfilectx(self._repo, path, workingctx=self,
|
|
filelog=filelog)
|
|
|
|
def ancestor(self, c2):
|
|
"""return the ancestor context of self and c2"""
|
|
return self._parents[0].ancestor(c2) # punt on two parents for now
|
|
|
|
def walk(self, match):
|
|
return sorted(self._repo.dirstate.walk(match, True, False))
|
|
|
|
def dirty(self, missing=False):
|
|
"check whether a working directory is modified"
|
|
|
|
return (self.p2() or self.branch() != self.p1().branch() or
|
|
self.modified() or self.added() or self.removed() or
|
|
(missing and self.deleted()))
|
|
|
|
class workingfilectx(filectx):
|
|
"""A workingfilectx object makes access to data related to a particular
|
|
file in the working directory convenient."""
|
|
def __init__(self, repo, path, filelog=None, workingctx=None):
|
|
"""changeid can be a changeset revision, node, or tag.
|
|
fileid can be a file revision or node."""
|
|
self._repo = repo
|
|
self._path = path
|
|
self._changeid = None
|
|
self._filerev = self._filenode = None
|
|
|
|
if filelog:
|
|
self._filelog = filelog
|
|
if workingctx:
|
|
self._changectx = workingctx
|
|
|
|
@propertycache
|
|
def _changectx(self):
|
|
return workingctx(self._repo)
|
|
|
|
def __nonzero__(self):
|
|
return True
|
|
|
|
def __str__(self):
|
|
return "%s@%s" % (self.path(), self._changectx)
|
|
|
|
def data(self): return self._repo.wread(self._path)
|
|
def renamed(self):
|
|
rp = self._repo.dirstate.copied(self._path)
|
|
if not rp:
|
|
return None
|
|
return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
|
|
|
|
def parents(self):
|
|
'''return parent filectxs, following copies if necessary'''
|
|
def filenode(ctx, path):
|
|
return ctx._manifest.get(path, nullid)
|
|
|
|
path = self._path
|
|
fl = self._filelog
|
|
pcl = self._changectx._parents
|
|
renamed = self.renamed()
|
|
|
|
if renamed:
|
|
pl = [renamed + (None,)]
|
|
else:
|
|
pl = [(path, filenode(pcl[0], path), fl)]
|
|
|
|
for pc in pcl[1:]:
|
|
pl.append((path, filenode(pc, path), fl))
|
|
|
|
return [filectx(self._repo, p, fileid=n, filelog=l)
|
|
for p,n,l in pl if n != nullid]
|
|
|
|
def children(self):
|
|
return []
|
|
|
|
def size(self): return os.stat(self._repo.wjoin(self._path)).st_size
|
|
def date(self):
|
|
t, tz = self._changectx.date()
|
|
try:
|
|
return (int(os.lstat(self._repo.wjoin(self._path)).st_mtime), tz)
|
|
except OSError, err:
|
|
if err.errno != errno.ENOENT: raise
|
|
return (t, tz)
|
|
|
|
def cmp(self, text): return self._repo.wread(self._path) == text
|
|
|
|
class memctx(object):
|
|
"""Use memctx to perform in-memory commits via localrepo.commitctx().
|
|
|
|
Revision information is supplied at initialization time while
|
|
related files data and is made available through a callback
|
|
mechanism. 'repo' is the current localrepo, 'parents' is a
|
|
sequence of two parent revisions identifiers (pass None for every
|
|
missing parent), 'text' is the commit message and 'files' lists
|
|
names of files touched by the revision (normalized and relative to
|
|
repository root).
|
|
|
|
filectxfn(repo, memctx, path) is a callable receiving the
|
|
repository, the current memctx object and the normalized path of
|
|
requested file, relative to repository root. It is fired by the
|
|
commit function for every file in 'files', but calls order is
|
|
undefined. If the file is available in the revision being
|
|
committed (updated or added), filectxfn returns a memfilectx
|
|
object. If the file was removed, filectxfn raises an
|
|
IOError. Moved files are represented by marking the source file
|
|
removed and the new file added with copy information (see
|
|
memfilectx).
|
|
|
|
user receives the committer name and defaults to current
|
|
repository username, date is the commit date in any format
|
|
supported by util.parsedate() and defaults to current date, extra
|
|
is a dictionary of metadata or is left empty.
|
|
"""
|
|
def __init__(self, repo, parents, text, files, filectxfn, user=None,
|
|
date=None, extra=None):
|
|
self._repo = repo
|
|
self._rev = None
|
|
self._node = None
|
|
self._text = text
|
|
self._date = date and util.parsedate(date) or util.makedate()
|
|
self._user = user
|
|
parents = [(p or nullid) for p in parents]
|
|
p1, p2 = parents
|
|
self._parents = [changectx(self._repo, p) for p in (p1, p2)]
|
|
files = sorted(set(files))
|
|
self._status = [files, [], [], [], []]
|
|
self._filectxfn = filectxfn
|
|
|
|
self._extra = extra and extra.copy() or {}
|
|
if 'branch' not in self._extra:
|
|
self._extra['branch'] = 'default'
|
|
elif self._extra.get('branch') == '':
|
|
self._extra['branch'] = 'default'
|
|
|
|
def __str__(self):
|
|
return str(self._parents[0]) + "+"
|
|
|
|
def __int__(self):
|
|
return self._rev
|
|
|
|
def __nonzero__(self):
|
|
return True
|
|
|
|
def __getitem__(self, key):
|
|
return self.filectx(key)
|
|
|
|
def p1(self): return self._parents[0]
|
|
def p2(self): return self._parents[1]
|
|
|
|
def user(self): return self._user or self._repo.ui.username()
|
|
def date(self): return self._date
|
|
def description(self): return self._text
|
|
def files(self): return self.modified()
|
|
def modified(self): return self._status[0]
|
|
def added(self): return self._status[1]
|
|
def removed(self): return self._status[2]
|
|
def deleted(self): return self._status[3]
|
|
def unknown(self): return self._status[4]
|
|
def clean(self): return self._status[5]
|
|
def branch(self): return self._extra['branch']
|
|
def extra(self): return self._extra
|
|
def flags(self, f): return self[f].flags()
|
|
|
|
def parents(self):
|
|
"""return contexts for each parent changeset"""
|
|
return self._parents
|
|
|
|
def filectx(self, path, filelog=None):
|
|
"""get a file context from the working directory"""
|
|
return self._filectxfn(self._repo, self, path)
|
|
|
|
class memfilectx(object):
|
|
"""memfilectx represents an in-memory file to commit.
|
|
|
|
See memctx for more details.
|
|
"""
|
|
def __init__(self, path, data, islink, isexec, copied):
|
|
"""
|
|
path is the normalized file path relative to repository root.
|
|
data is the file content as a string.
|
|
islink is True if the file is a symbolic link.
|
|
isexec is True if the file is executable.
|
|
copied is the source file path if current file was copied in the
|
|
revision being committed, or None."""
|
|
self._path = path
|
|
self._data = data
|
|
self._flags = (islink and 'l' or '') + (isexec and 'x' or '')
|
|
self._copied = None
|
|
if copied:
|
|
self._copied = (copied, nullid)
|
|
|
|
def __nonzero__(self): return True
|
|
def __str__(self): return "%s@%s" % (self.path(), self._changectx)
|
|
def path(self): return self._path
|
|
def data(self): return self._data
|
|
def flags(self): return self._flags
|
|
def isexec(self): return 'x' in self._flags
|
|
def islink(self): return 'l' in self._flags
|
|
def renamed(self): return self._copied
|