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# 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
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# of the GNU General Public License, incorporated herein by reference.
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from node import nullid, nullrev, short
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from i18n import _
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import ancestor, bdiff, revlog, util, os, errno
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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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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 __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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def __getattr__(self, name):
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if name == '_changeset':
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self._changeset = self._repo.changelog.read(self.node())
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return self._changeset
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elif name == '_manifest':
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self._manifest = self._repo.manifest.read(self._changeset[0])
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return self._manifest
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elif name == '_manifestdelta':
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md = self._repo.manifest.readdelta(self._changeset[0])
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self._manifestdelta = md
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return self._manifestdelta
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elif name == '_parents':
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p = self._repo.changelog.parents(self._node)
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if p[1] == nullid:
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p = p[:-1]
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self._parents = [changectx(self._repo, x) for x in p]
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return self._parents
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else:
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raise AttributeError, name
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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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a = self._manifest.keys()
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a.sort()
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for f in a:
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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 rev(self): return self._rev
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def node(self): return 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 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 _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 revlog.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 revlog.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 revlog.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 filectxs(self):
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"""generate a file context for each file in this changeset's
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manifest"""
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mf = self.manifest()
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m = mf.keys()
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m.sort()
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for f in m:
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yield self.filectx(f, fileid=mf[f])
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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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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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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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def __getattr__(self, name):
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if name == '_changectx':
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self._changectx = changectx(self._repo, self._changeid)
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return self._changectx
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elif name == '_filelog':
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self._filelog = self._repo.file(self._path)
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return self._filelog
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elif name == '_changeid':
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if '_changectx' in self.__dict__:
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self._changeid = self._changectx.rev()
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else:
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self._changeid = self._filelog.linkrev(self._filenode)
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return self._changeid
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elif name == '_filenode':
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if '_fileid' in self.__dict__:
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self._filenode = self._filelog.lookup(self._fileid)
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else:
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self._filenode = self._changectx.filenode(self._path)
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return self._filenode
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elif name == '_filerev':
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self._filerev = self._filelog.rev(self._filenode)
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return self._filerev
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elif name == '_repopath':
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self._repopath = self._path
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return self._repopath
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else:
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raise AttributeError, name
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def __nonzero__(self):
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try:
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n = self._filenode
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return True
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except revlog.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._filenode)
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def linkrev(self): return self._filelog.linkrev(self._filenode)
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def node(self): return self._changectx.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 revlog.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.cachefunc(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.cachefunc(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.keys() if n._path == f]
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visit.extend(fn)
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visit.sort()
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hist = {}
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for r, f in 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(1))
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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 == 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.
|
|
|
date - any valid date string or (unixtime, offset), or None.
|
|
|
user - username string, or None.
|
|
|
extra - a dictionary of extra values, or None.
|
|
|
changes - a list of file lists as returned by localrepo.status()
|
|
|
or None to use the repository status.
|
|
|
"""
|
|
|
def __init__(self, repo, parents=None, text="", user=None, date=None,
|
|
|
extra=None, changes=None):
|
|
|
self._repo = repo
|
|
|
self._rev = None
|
|
|
self._node = None
|
|
|
self._text = text
|
|
|
if date:
|
|
|
self._date = util.parsedate(date)
|
|
|
else:
|
|
|
self._date = util.makedate()
|
|
|
if user:
|
|
|
self._user = user
|
|
|
else:
|
|
|
self._user = self._repo.ui.username()
|
|
|
if parents:
|
|
|
p1, p2 = parents
|
|
|
self._parents = [changectx(self._repo, p) for p in (p1, p2)]
|
|
|
if changes:
|
|
|
self._status = list(changes)
|
|
|
|
|
|
self._extra = {}
|
|
|
if extra:
|
|
|
self._extra = extra.copy()
|
|
|
if 'branch' not in self._extra:
|
|
|
branch = self._repo.dirstate.branch()
|
|
|
try:
|
|
|
branch = branch.decode('UTF-8').encode('UTF-8')
|
|
|
except UnicodeDecodeError:
|
|
|
raise util.Abort(_('branch name not in UTF-8!'))
|
|
|
self._extra['branch'] = branch
|
|
|
if self._extra['branch'] == '':
|
|
|
self._extra['branch'] = 'default'
|
|
|
|
|
|
def __str__(self):
|
|
|
return str(self._parents[0]) + "+"
|
|
|
|
|
|
def __nonzero__(self):
|
|
|
return True
|
|
|
|
|
|
def __getattr__(self, name):
|
|
|
if name == '_status':
|
|
|
self._status = self._repo.status()
|
|
|
return self._status
|
|
|
if name == '_manifest':
|
|
|
self._buildmanifest()
|
|
|
return self._manifest
|
|
|
elif name == '_parents':
|
|
|
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
|
|
|
else:
|
|
|
raise AttributeError, name
|
|
|
|
|
|
def _buildmanifest(self):
|
|
|
"""generate a manifest corresponding to the working directory"""
|
|
|
|
|
|
man = self._parents[0].manifest().copy()
|
|
|
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]
|
|
|
|
|
|
self._manifest = man
|
|
|
|
|
|
def manifest(self): return self._manifest
|
|
|
|
|
|
def user(self): return self._user
|
|
|
def date(self): return self._date
|
|
|
def description(self): return self._text
|
|
|
def files(self):
|
|
|
f = self.modified() + self.added() + self.removed()
|
|
|
f.sort()
|
|
|
return f
|
|
|
|
|
|
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
|
|
|
|
|
|
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
|
|
|
|
|
|
def __getattr__(self, name):
|
|
|
if name == '_changectx':
|
|
|
self._changectx = workingctx(self._repo)
|
|
|
return self._changectx
|
|
|
elif name == '_repopath':
|
|
|
self._repopath = (self._repo.dirstate.copied(self._path)
|
|
|
or self._path)
|
|
|
return self._repopath
|
|
|
elif name == '_filelog':
|
|
|
self._filelog = self._repo.file(self._repopath)
|
|
|
return self._filelog
|
|
|
else:
|
|
|
raise AttributeError, name
|
|
|
|
|
|
def __nonzero__(self):
|
|
|
return True
|
|
|
|
|
|
def __str__(self):
|
|
|
return "%s@%s" % (self.path(), self._changectx)
|
|
|
|
|
|
def filectx(self, fileid):
|
|
|
'''opens an arbitrary revision of the file without
|
|
|
opening a new filelog'''
|
|
|
return filectx(self._repo, self._repopath, fileid=fileid,
|
|
|
filelog=self._filelog)
|
|
|
|
|
|
def rev(self):
|
|
|
if '_changectx' in self.__dict__:
|
|
|
return self._changectx.rev()
|
|
|
return self._filelog.linkrev(self._filenode)
|
|
|
|
|
|
def data(self): return self._repo.wread(self._path)
|
|
|
def renamed(self):
|
|
|
rp = self._repopath
|
|
|
if rp == self._path:
|
|
|
return None
|
|
|
return rp, self._changectx._parents[0]._manifest.get(rp, nullid)
|
|
|
|
|
|
def parents(self):
|
|
|
'''return parent filectxs, following copies if necessary'''
|
|
|
p = self._path
|
|
|
rp = self._repopath
|
|
|
pcl = self._changectx._parents
|
|
|
fl = self._filelog
|
|
|
pl = [(rp, pcl[0]._manifest.get(rp, nullid), fl)]
|
|
|
if len(pcl) > 1:
|
|
|
if rp != p:
|
|
|
fl = None
|
|
|
pl.append((p, pcl[1]._manifest.get(p, nullid), 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):
|
|
|
"""A memctx is a subset of changectx supposed to be built on memory
|
|
|
and passed to commit functions.
|
|
|
|
|
|
NOTE: this interface and the related memfilectx are experimental and
|
|
|
may change without notice.
|
|
|
|
|
|
parents - a pair of parent nodeids.
|
|
|
filectxfn - a callable taking (repo, memctx, path) arguments and
|
|
|
returning a memctx object.
|
|
|
date - any valid date string or (unixtime, offset), or None.
|
|
|
user - username string, or None.
|
|
|
extra - a dictionary of extra values, or None.
|
|
|
"""
|
|
|
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 or self._repo.ui.username()
|
|
|
parents = [(p or nullid) for p in parents]
|
|
|
p1, p2 = parents
|
|
|
self._parents = [changectx(self._repo, p) for p in (p1, p2)]
|
|
|
files = list(files)
|
|
|
files.sort()
|
|
|
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 __nonzero__(self):
|
|
|
return True
|
|
|
|
|
|
def user(self): return self._user
|
|
|
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):
|
|
|
"""A memfilectx is a subset of filectx supposed to be built by client
|
|
|
code and passed to commit functions.
|
|
|
"""
|
|
|
def __init__(self, path, data, islink, isexec, copied):
|
|
|
"""copied is the source file path, 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
|
|
|
|
|
|
|
