transaction: backup file in a dedicated "namespace"
File backup may conflict with other "journal.*" file. We add a fixed part in the
backup name file to prevent it.
# context.py - changeset and file context objects for mercurial
#
# Copyright 2006, 2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from node import nullid, nullrev, short, hex, bin
from i18n import _
import mdiff, error, util, scmutil, subrepo, patch, encoding, phases
import match as matchmod
import os, errno, stat
import obsolete as obsmod
import repoview
import fileset
import revlog
propertycache = util.propertycache
class basectx(object):
"""A basectx object represents the common logic for its children:
changectx: read-only context that is already present in the repo,
workingctx: a context that represents the working directory and can
be committed,
memctx: a context that represents changes in-memory and can also
be committed."""
def __new__(cls, repo, changeid='', *args, **kwargs):
if isinstance(changeid, basectx):
return changeid
o = super(basectx, cls).__new__(cls)
o._repo = repo
o._rev = nullrev
o._node = nullid
return o
def __str__(self):
return short(self.node())
def __int__(self):
return self.rev()
def __repr__(self):
return "<%s %s>" % (type(self).__name__, str(self))
def __eq__(self, other):
try:
return type(self) == type(other) and self._rev == other._rev
except AttributeError:
return False
def __ne__(self, other):
return not (self == other)
def __contains__(self, key):
return key in self._manifest
def __getitem__(self, key):
return self.filectx(key)
def __iter__(self):
for f in sorted(self._manifest):
yield f
def _manifestmatches(self, match, s):
"""generate a new manifest filtered by the match argument
This method is for internal use only and mainly exists to provide an
object oriented way for other contexts to customize the manifest
generation.
"""
if match.always():
return self.manifest().copy()
files = match.files()
if (match.matchfn == match.exact or
(not match.anypats() and util.all(fn in self for fn in files))):
return self.manifest().intersectfiles(files)
mf = self.manifest().copy()
for fn in mf.keys():
if not match(fn):
del mf[fn]
return mf
def _matchstatus(self, other, s, match, listignored, listclean,
listunknown):
"""return match.always if match is none
This internal method provides a way for child objects to override the
match operator.
"""
return match or matchmod.always(self._repo.root, self._repo.getcwd())
def _prestatus(self, other, s, match, listignored, listclean, listunknown):
"""provide a hook to allow child objects to preprocess status results
For example, this allows other contexts, such as workingctx, to query
the dirstate before comparing the manifests.
"""
# load earliest manifest first for caching reasons
if self.rev() < other.rev():
self.manifest()
return s
def _poststatus(self, other, s, match, listignored, listclean, listunknown):
"""provide a hook to allow child objects to postprocess status results
For example, this allows other contexts, such as workingctx, to filter
suspect symlinks in the case of FAT32 and NTFS filesytems.
"""
return s
def _buildstatus(self, other, s, match, listignored, listclean,
listunknown):
"""build a status with respect to another context"""
mf1 = other._manifestmatches(match, s)
mf2 = self._manifestmatches(match, s)
modified, added, clean = [], [], []
deleted, unknown, ignored = s[3], s[4], s[5]
withflags = mf1.withflags() | mf2.withflags()
for fn, mf2node in mf2.iteritems():
if fn in mf1:
if (fn not in deleted and
((fn in withflags and mf1.flags(fn) != mf2.flags(fn)) or
(mf1[fn] != mf2node and
(mf2node or self[fn].cmp(other[fn]))))):
modified.append(fn)
elif listclean:
clean.append(fn)
del mf1[fn]
elif fn not in deleted:
added.append(fn)
removed = mf1.keys()
if removed:
# need to filter files if they are already reported as removed
unknown = [fn for fn in unknown if fn not in mf1]
ignored = [fn for fn in ignored if fn not in mf1]
return [modified, added, removed, deleted, unknown, ignored, clean]
@propertycache
def substate(self):
return subrepo.state(self, self._repo.ui)
def subrev(self, subpath):
return self.substate[subpath][1]
def rev(self):
return self._rev
def node(self):
return self._node
def hex(self):
return hex(self.node())
def manifest(self):
return self._manifest
def phasestr(self):
return phases.phasenames[self.phase()]
def mutable(self):
return self.phase() > phases.public
def getfileset(self, expr):
return fileset.getfileset(self, expr)
def obsolete(self):
"""True if the changeset is obsolete"""
return self.rev() in obsmod.getrevs(self._repo, 'obsolete')
def extinct(self):
"""True if the changeset is extinct"""
return self.rev() in obsmod.getrevs(self._repo, 'extinct')
def unstable(self):
"""True if the changeset is not obsolete but it's ancestor are"""
return self.rev() in obsmod.getrevs(self._repo, 'unstable')
def bumped(self):
"""True if the changeset try to be a successor of a public changeset
Only non-public and non-obsolete changesets may be bumped.
"""
return self.rev() in obsmod.getrevs(self._repo, 'bumped')
def divergent(self):
"""Is a successors of a changeset with multiple possible successors set
Only non-public and non-obsolete changesets may be divergent.
"""
return self.rev() in obsmod.getrevs(self._repo, 'divergent')
def troubled(self):
"""True if the changeset is either unstable, bumped or divergent"""
return self.unstable() or self.bumped() or self.divergent()
def troubles(self):
"""return the list of troubles affecting this changesets.
Troubles are returned as strings. possible values are:
- unstable,
- bumped,
- divergent.
"""
troubles = []
if self.unstable():
troubles.append('unstable')
if self.bumped():
troubles.append('bumped')
if self.divergent():
troubles.append('divergent')
return troubles
def parents(self):
"""return contexts for each parent changeset"""
return self._parents
def p1(self):
return self._parents[0]
def p2(self):
if len(self._parents) == 2:
return self._parents[1]
return changectx(self._repo, -1)
def _fileinfo(self, path):
if '_manifest' in self.__dict__:
try:
return self._manifest[path], self._manifest.flags(path)
except KeyError:
raise error.ManifestLookupError(self._node, path,
_('not found in manifest'))
if '_manifestdelta' in self.__dict__ or path in self.files():
if path in self._manifestdelta:
return (self._manifestdelta[path],
self._manifestdelta.flags(path))
node, flag = self._repo.manifest.find(self._changeset[0], path)
if not node:
raise error.ManifestLookupError(self._node, path,
_('not found in manifest'))
return node, flag
def filenode(self, path):
return self._fileinfo(path)[0]
def flags(self, path):
try:
return self._fileinfo(path)[1]
except error.LookupError:
return ''
def sub(self, path):
return subrepo.subrepo(self, path)
def match(self, pats=[], include=None, exclude=None, default='glob'):
r = self._repo
return matchmod.match(r.root, r.getcwd(), pats,
include, exclude, default,
auditor=r.auditor, ctx=self)
def diff(self, ctx2=None, match=None, **opts):
"""Returns a diff generator for the given contexts and matcher"""
if ctx2 is None:
ctx2 = self.p1()
if ctx2 is not None:
ctx2 = self._repo[ctx2]
diffopts = patch.diffopts(self._repo.ui, opts)
return patch.diff(self._repo, ctx2, self, match=match, opts=diffopts)
@propertycache
def _dirs(self):
return scmutil.dirs(self._manifest)
def dirs(self):
return self._dirs
def dirty(self, missing=False, merge=True, branch=True):
return False
def status(self, other=None, match=None, listignored=False,
listclean=False, listunknown=False, listsubrepos=False):
"""return status of files between two nodes or node and working
directory.
If other is None, compare this node with working directory.
returns (modified, added, removed, deleted, unknown, ignored, clean)
"""
ctx1 = self
ctx2 = self._repo[other]
# This next code block is, admittedly, fragile logic that tests for
# reversing the contexts and wouldn't need to exist if it weren't for
# the fast (and common) code path of comparing the working directory
# with its first parent.
#
# What we're aiming for here is the ability to call:
#
# workingctx.status(parentctx)
#
# If we always built the manifest for each context and compared those,
# then we'd be done. But the special case of the above call means we
# just copy the manifest of the parent.
reversed = False
if (not isinstance(ctx1, changectx)
and isinstance(ctx2, changectx)):
reversed = True
ctx1, ctx2 = ctx2, ctx1
r = [[], [], [], [], [], [], []]
match = ctx2._matchstatus(ctx1, r, match, listignored, listclean,
listunknown)
r = ctx2._prestatus(ctx1, r, match, listignored, listclean, listunknown)
r = ctx2._buildstatus(ctx1, r, match, listignored, listclean,
listunknown)
r = ctx2._poststatus(ctx1, r, match, listignored, listclean,
listunknown)
if reversed:
# reverse added and removed
r[1], r[2] = r[2], r[1]
if listsubrepos:
for subpath, sub in scmutil.itersubrepos(ctx1, ctx2):
rev2 = ctx2.subrev(subpath)
try:
submatch = matchmod.narrowmatcher(subpath, match)
s = sub.status(rev2, match=submatch, ignored=listignored,
clean=listclean, unknown=listunknown,
listsubrepos=True)
for rfiles, sfiles in zip(r, s):
rfiles.extend("%s/%s" % (subpath, f) for f in sfiles)
except error.LookupError:
self._repo.ui.status(_("skipping missing "
"subrepository: %s\n") % subpath)
for l in r:
l.sort()
# we return a tuple to signify that this list isn't changing
return tuple(r)
def makememctx(repo, parents, text, user, date, branch, files, store,
editor=None):
def getfilectx(repo, memctx, path):
data, (islink, isexec), copied = store.getfile(path)
return memfilectx(repo, path, data, islink=islink, isexec=isexec,
copied=copied, memctx=memctx)
extra = {}
if branch:
extra['branch'] = encoding.fromlocal(branch)
ctx = memctx(repo, parents, text, files, getfilectx, user,
date, extra, editor)
return ctx
class changectx(basectx):
"""A changecontext object makes access to data related to a particular
changeset convenient. It represents a read-only context already present in
the repo."""
def __init__(self, repo, changeid=''):
"""changeid is a revision number, node, or tag"""
# since basectx.__new__ already took care of copying the object, we
# don't need to do anything in __init__, so we just exit here
if isinstance(changeid, basectx):
return
if changeid == '':
changeid = '.'
self._repo = repo
if isinstance(changeid, int):
try:
self._node = repo.changelog.node(changeid)
except IndexError:
raise error.RepoLookupError(
_("unknown revision '%s'") % changeid)
self._rev = changeid
return
if isinstance(changeid, long):
changeid = str(changeid)
if changeid == '.':
self._node = repo.dirstate.p1()
self._rev = repo.changelog.rev(self._node)
return
if changeid == 'null':
self._node = nullid
self._rev = nullrev
return
if changeid == 'tip':
self._node = repo.changelog.tip()
self._rev = repo.changelog.rev(self._node)
return
if len(changeid) == 20:
try:
self._node = changeid
self._rev = repo.changelog.rev(changeid)
return
except LookupError:
pass
try:
r = int(changeid)
if str(r) != changeid:
raise ValueError
l = len(repo.changelog)
if r < 0:
r += l
if r < 0 or r >= l:
raise ValueError
self._rev = r
self._node = repo.changelog.node(r)
return
except (ValueError, OverflowError, IndexError):
pass
if len(changeid) == 40:
try:
self._node = bin(changeid)
self._rev = repo.changelog.rev(self._node)
return
except (TypeError, LookupError):
pass
if changeid in repo._bookmarks:
self._node = repo._bookmarks[changeid]
self._rev = repo.changelog.rev(self._node)
return
if changeid in repo._tagscache.tags:
self._node = repo._tagscache.tags[changeid]
self._rev = repo.changelog.rev(self._node)
return
try:
self._node = repo.branchtip(changeid)
self._rev = repo.changelog.rev(self._node)
return
except error.RepoLookupError:
pass
self._node = repo.changelog._partialmatch(changeid)
if self._node is not None:
self._rev = repo.changelog.rev(self._node)
return
# lookup failed
# check if it might have come from damaged dirstate
#
# XXX we could avoid the unfiltered if we had a recognizable exception
# for filtered changeset access
if changeid in repo.unfiltered().dirstate.parents():
raise error.Abort(_("working directory has unknown parent '%s'!")
% short(changeid))
try:
if len(changeid) == 20:
changeid = hex(changeid)
except TypeError:
pass
raise error.RepoLookupError(
_("unknown revision '%s'") % changeid)
def __hash__(self):
try:
return hash(self._rev)
except AttributeError:
return id(self)
def __nonzero__(self):
return self._rev != nullrev
@propertycache
def _changeset(self):
return self._repo.changelog.read(self.rev())
@propertycache
def _manifest(self):
return self._repo.manifest.read(self._changeset[0])
@propertycache
def _manifestdelta(self):
return self._repo.manifest.readdelta(self._changeset[0])
@propertycache
def _parents(self):
p = self._repo.changelog.parentrevs(self._rev)
if p[1] == nullrev:
p = p[:-1]
return [changectx(self._repo, x) for x in p]
def changeset(self):
return self._changeset
def manifestnode(self):
return self._changeset[0]
def user(self):
return self._changeset[1]
def date(self):
return self._changeset[2]
def files(self):
return self._changeset[3]
def description(self):
return self._changeset[4]
def branch(self):
return encoding.tolocal(self._changeset[5].get("branch"))
def closesbranch(self):
return 'close' in self._changeset[5]
def extra(self):
return self._changeset[5]
def tags(self):
return self._repo.nodetags(self._node)
def bookmarks(self):
return self._repo.nodebookmarks(self._node)
def phase(self):
return self._repo._phasecache.phase(self._repo, self._rev)
def hidden(self):
return self._rev in repoview.filterrevs(self._repo, 'visible')
def children(self):
"""return contexts for each child changeset"""
c = self._repo.changelog.children(self._node)
return [changectx(self._repo, x) for x in c]
def ancestors(self):
for a in self._repo.changelog.ancestors([self._rev]):
yield changectx(self._repo, a)
def descendants(self):
for d in self._repo.changelog.descendants([self._rev]):
yield changectx(self._repo, d)
def filectx(self, path, fileid=None, filelog=None):
"""get a file context from this changeset"""
if fileid is None:
fileid = self.filenode(path)
return filectx(self._repo, path, fileid=fileid,
changectx=self, filelog=filelog)
def ancestor(self, c2, warn=False):
"""
return the "best" ancestor context of self and c2
"""
# deal with workingctxs
n2 = c2._node
if n2 is None:
n2 = c2._parents[0]._node
cahs = self._repo.changelog.commonancestorsheads(self._node, n2)
if not cahs:
anc = nullid
elif len(cahs) == 1:
anc = cahs[0]
else:
for r in self._repo.ui.configlist('merge', 'preferancestor'):
ctx = changectx(self._repo, r)
anc = ctx.node()
if anc in cahs:
break
else:
anc = self._repo.changelog.ancestor(self._node, n2)
if warn:
self._repo.ui.status(
(_("note: using %s as ancestor of %s and %s\n") %
(short(anc), short(self._node), short(n2))) +
''.join(_(" alternatively, use --config "
"merge.preferancestor=%s\n") %
short(n) for n in sorted(cahs) if n != anc))
return changectx(self._repo, anc)
def descendant(self, other):
"""True if other is descendant of this changeset"""
return self._repo.changelog.descendant(self._rev, other._rev)
def walk(self, match):
fset = set(match.files())
# for dirstate.walk, files=['.'] means "walk the whole tree".
# follow that here, too
fset.discard('.')
# avoid the entire walk if we're only looking for specific files
if fset and not match.anypats():
if util.all([fn in self for fn in fset]):
for fn in sorted(fset):
if match(fn):
yield fn
raise StopIteration
for fn in self:
if fn in fset:
# specified pattern is the exact name
fset.remove(fn)
if match(fn):
yield fn
for fn in sorted(fset):
if fn in self._dirs:
# specified pattern is a directory
continue
match.bad(fn, _('no such file in rev %s') % self)
def matches(self, match):
return self.walk(match)
class basefilectx(object):
"""A filecontext object represents the common logic for its children:
filectx: read-only access to a filerevision that is already present
in the repo,
workingfilectx: a filecontext that represents files from the working
directory,
memfilectx: a filecontext that represents files in-memory."""
def __new__(cls, repo, path, *args, **kwargs):
return super(basefilectx, cls).__new__(cls)
@propertycache
def _filelog(self):
return self._repo.file(self._path)
@propertycache
def _changeid(self):
if '_changeid' in self.__dict__:
return self._changeid
elif '_changectx' in self.__dict__:
return self._changectx.rev()
else:
return self._filelog.linkrev(self._filerev)
@propertycache
def _filenode(self):
if '_fileid' in self.__dict__:
return self._filelog.lookup(self._fileid)
else:
return self._changectx.filenode(self._path)
@propertycache
def _filerev(self):
return self._filelog.rev(self._filenode)
@propertycache
def _repopath(self):
return self._path
def __nonzero__(self):
try:
self._filenode
return True
except error.LookupError:
# file is missing
return False
def __str__(self):
return "%s@%s" % (self.path(), self._changectx)
def __repr__(self):
return "<%s %s>" % (type(self).__name__, str(self))
def __hash__(self):
try:
return hash((self._path, self._filenode))
except AttributeError:
return id(self)
def __eq__(self, other):
try:
return (type(self) == type(other) and self._path == other._path
and self._filenode == other._filenode)
except AttributeError:
return False
def __ne__(self, other):
return not (self == other)
def filerev(self):
return self._filerev
def filenode(self):
return self._filenode
def flags(self):
return self._changectx.flags(self._path)
def filelog(self):
return self._filelog
def rev(self):
return self._changeid
def linkrev(self):
return self._filelog.linkrev(self._filerev)
def node(self):
return self._changectx.node()
def hex(self):
return self._changectx.hex()
def user(self):
return self._changectx.user()
def date(self):
return self._changectx.date()
def files(self):
return self._changectx.files()
def description(self):
return self._changectx.description()
def branch(self):
return self._changectx.branch()
def extra(self):
return self._changectx.extra()
def phase(self):
return self._changectx.phase()
def phasestr(self):
return self._changectx.phasestr()
def manifest(self):
return self._changectx.manifest()
def changectx(self):
return self._changectx
def path(self):
return self._path
def isbinary(self):
try:
return util.binary(self.data())
except IOError:
return False
def isexec(self):
return 'x' in self.flags()
def islink(self):
return 'l' in self.flags()
def cmp(self, fctx):
"""compare with other file context
returns True if different than fctx.
"""
if (fctx._filerev is None
and (self._repo._encodefilterpats
# if file data starts with '\1\n', empty metadata block is
# prepended, which adds 4 bytes to filelog.size().
or self.size() - 4 == fctx.size())
or self.size() == fctx.size()):
return self._filelog.cmp(self._filenode, fctx.data())
return True
def parents(self):
p = self._path
fl = self._filelog
pl = [(p, n, fl) for n in self._filelog.parents(self._filenode)]
r = self._filelog.renamed(self._filenode)
if r:
pl[0] = (r[0], r[1], None)
return [filectx(self._repo, p, fileid=n, filelog=l)
for p, n, l in pl if n != nullid]
def p1(self):
return self.parents()[0]
def p2(self):
p = self.parents()
if len(p) == 2:
return p[1]
return filectx(self._repo, self._path, fileid=-1, filelog=self._filelog)
def annotate(self, follow=False, linenumber=None, diffopts=None):
'''returns a list of tuples of (ctx, line) for each line
in the file, where ctx is the filectx of the node where
that line was last changed.
This returns tuples of ((ctx, linenumber), line) for each line,
if "linenumber" parameter is NOT "None".
In such tuples, linenumber means one at the first appearance
in the managed file.
To reduce annotation cost,
this returns fixed value(False is used) as linenumber,
if "linenumber" parameter is "False".'''
def decorate_compat(text, rev):
return ([rev] * len(text.splitlines()), text)
def without_linenumber(text, rev):
return ([(rev, False)] * len(text.splitlines()), text)
def with_linenumber(text, rev):
size = len(text.splitlines())
return ([(rev, i) for i in xrange(1, size + 1)], text)
decorate = (((linenumber is None) and decorate_compat) or
(linenumber and with_linenumber) or
without_linenumber)
def pair(parent, child):
blocks = mdiff.allblocks(parent[1], child[1], opts=diffopts,
refine=True)
for (a1, a2, b1, b2), t in blocks:
# Changed blocks ('!') or blocks made only of blank lines ('~')
# belong to the child.
if t == '=':
child[0][b1:b2] = parent[0][a1:a2]
return child
getlog = util.lrucachefunc(lambda x: self._repo.file(x))
def parents(f):
pl = f.parents()
# Don't return renamed parents if we aren't following.
if not follow:
pl = [p for p in pl if p.path() == f.path()]
# renamed filectx won't have a filelog yet, so set it
# from the cache to save time
for p in pl:
if not '_filelog' in p.__dict__:
p._filelog = getlog(p.path())
return pl
# use linkrev to find the first changeset where self appeared
if self.rev() != self.linkrev():
base = self.filectx(self.filenode())
else:
base = self
# This algorithm would prefer to be recursive, but Python is a
# bit recursion-hostile. Instead we do an iterative
# depth-first search.
visit = [base]
hist = {}
pcache = {}
needed = {base: 1}
while visit:
f = visit[-1]
pcached = f in pcache
if not pcached:
pcache[f] = parents(f)
ready = True
pl = pcache[f]
for p in pl:
if p not in hist:
ready = False
visit.append(p)
if not pcached:
needed[p] = needed.get(p, 0) + 1
if ready:
visit.pop()
reusable = f in hist
if reusable:
curr = hist[f]
else:
curr = decorate(f.data(), f)
for p in pl:
if not reusable:
curr = pair(hist[p], curr)
if needed[p] == 1:
del hist[p]
del needed[p]
else:
needed[p] -= 1
hist[f] = curr
pcache[f] = []
return zip(hist[base][0], hist[base][1].splitlines(True))
def ancestors(self, followfirst=False):
visit = {}
c = self
cut = followfirst and 1 or None
while True:
for parent in c.parents()[:cut]:
visit[(parent.rev(), parent.node())] = parent
if not visit:
break
c = visit.pop(max(visit))
yield c
class filectx(basefilectx):
"""A filecontext object makes access to data related to a particular
filerevision convenient."""
def __init__(self, repo, path, changeid=None, fileid=None,
filelog=None, changectx=None):
"""changeid can be a changeset revision, node, or tag.
fileid can be a file revision or node."""
self._repo = repo
self._path = path
assert (changeid is not None
or fileid is not None
or changectx is not None), \
("bad args: changeid=%r, fileid=%r, changectx=%r"
% (changeid, fileid, changectx))
if filelog is not None:
self._filelog = filelog
if changeid is not None:
self._changeid = changeid
if changectx is not None:
self._changectx = changectx
if fileid is not None:
self._fileid = fileid
@propertycache
def _changectx(self):
try:
return changectx(self._repo, self._changeid)
except error.RepoLookupError:
# Linkrev may point to any revision in the repository. When the
# repository is filtered this may lead to `filectx` trying to build
# `changectx` for filtered revision. In such case we fallback to
# creating `changectx` on the unfiltered version of the reposition.
# This fallback should not be an issue because `changectx` from
# `filectx` are not used in complex operations that care about
# filtering.
#
# This fallback is a cheap and dirty fix that prevent several
# crashes. It does not ensure the behavior is correct. However the
# behavior was not correct before filtering either and "incorrect
# behavior" is seen as better as "crash"
#
# Linkrevs have several serious troubles with filtering that are
# complicated to solve. Proper handling of the issue here should be
# considered when solving linkrev issue are on the table.
return changectx(self._repo.unfiltered(), self._changeid)
def filectx(self, fileid):
'''opens an arbitrary revision of the file without
opening a new filelog'''
return filectx(self._repo, self._path, fileid=fileid,
filelog=self._filelog)
def data(self):
return self._filelog.read(self._filenode)
def size(self):
return self._filelog.size(self._filerev)
def renamed(self):
"""check if file was actually renamed in this changeset revision
If rename logged in file revision, we report copy for changeset only
if file revisions linkrev points back to the changeset in question
or both changeset parents contain different file revisions.
"""
renamed = self._filelog.renamed(self._filenode)
if not renamed:
return renamed
if self.rev() == self.linkrev():
return renamed
name = self.path()
fnode = self._filenode
for p in self._changectx.parents():
try:
if fnode == p.filenode(name):
return None
except error.LookupError:
pass
return renamed
def children(self):
# hard for renames
c = self._filelog.children(self._filenode)
return [filectx(self._repo, self._path, fileid=x,
filelog=self._filelog) for x in c]
class committablectx(basectx):
"""A committablectx object provides common functionality for a context that
wants the ability to commit, e.g. workingctx or memctx."""
def __init__(self, repo, 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)
if user:
self._user = user
if changes:
self._status = changes
self._extra = {}
if extra:
self._extra = extra.copy()
if 'branch' not in self._extra:
try:
branch = encoding.fromlocal(self._repo.dirstate.branch())
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 _buildflagfunc(self):
# Create a fallback function for getting file flags when the
# filesystem doesn't support them
copiesget = self._repo.dirstate.copies().get
if len(self._parents) < 2:
# when we have one parent, it's easy: copy from parent
man = self._parents[0].manifest()
def func(f):
f = copiesget(f, f)
return man.flags(f)
else:
# merges are tricky: we try to reconstruct the unstored
# result from the merge (issue1802)
p1, p2 = self._parents
pa = p1.ancestor(p2)
m1, m2, ma = p1.manifest(), p2.manifest(), pa.manifest()
def func(f):
f = copiesget(f, f) # may be wrong for merges with copies
fl1, fl2, fla = m1.flags(f), m2.flags(f), ma.flags(f)
if fl1 == fl2:
return fl1
if fl1 == fla:
return fl2
if fl2 == fla:
return fl1
return '' # punt for conflicts
return func
@propertycache
def _flagfunc(self):
return self._repo.dirstate.flagfunc(self._buildflagfunc)
@propertycache
def _manifest(self):
"""generate a manifest corresponding to the values in self._status"""
man = self._parents[0].manifest().copy()
if len(self._parents) > 1:
man2 = self.p2().manifest()
def getman(f):
if f in man:
return man
return man2
else:
getman = lambda f: man
copied = self._repo.dirstate.copies()
ff = self._flagfunc
modified, added, removed, deleted = self._status[:4]
for i, l in (("a", added), ("m", modified)):
for f in l:
orig = copied.get(f, f)
man[f] = getman(orig).get(orig, 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()
@propertycache
def _user(self):
return self._repo.ui.username()
@propertycache
def _date(self):
return util.makedate()
def subrev(self, subpath):
return None
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 ignored(self):
return self._status[5]
def clean(self):
return self._status[6]
def branch(self):
return encoding.tolocal(self._extra['branch'])
def closesbranch(self):
return 'close' in self._extra
def extra(self):
return self._extra
def tags(self):
t = []
for p in self.parents():
t.extend(p.tags())
return t
def bookmarks(self):
b = []
for p in self.parents():
b.extend(p.bookmarks())
return b
def phase(self):
phase = phases.draft # default phase to draft
for p in self.parents():
phase = max(phase, p.phase())
return phase
def hidden(self):
return False
def children(self):
return []
def flags(self, path):
if '_manifest' in self.__dict__:
try:
return self._manifest.flags(path)
except KeyError:
return ''
try:
return self._flagfunc(path)
except OSError:
return ''
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, sorted(self.substate),
True, False))
def matches(self, match):
return sorted(self._repo.dirstate.matches(match))
def ancestors(self):
for a in self._repo.changelog.ancestors(
[p.rev() for p in self._parents]):
yield changectx(self._repo, a)
def markcommitted(self, node):
"""Perform post-commit cleanup necessary after committing this ctx
Specifically, this updates backing stores this working context
wraps to reflect the fact that the changes reflected by this
workingctx have been committed. For example, it marks
modified and added files as normal in the dirstate.
"""
for f in self.modified() + self.added():
self._repo.dirstate.normal(f)
for f in self.removed():
self._repo.dirstate.drop(f)
self._repo.dirstate.setparents(node)
def dirs(self):
return self._repo.dirstate.dirs()
class workingctx(committablectx):
"""A workingctx object makes access to data related to
the current working directory convenient.
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, text="", user=None, date=None, extra=None,
changes=None):
super(workingctx, self).__init__(repo, text, user, date, extra, changes)
def __iter__(self):
d = self._repo.dirstate
for f in d:
if d[f] != 'r':
yield f
def __contains__(self, key):
return self._repo.dirstate[key] not in "?r"
@propertycache
def _parents(self):
p = self._repo.dirstate.parents()
if p[1] == nullid:
p = p[:-1]
return [changectx(self._repo, x) for x in p]
def filectx(self, path, filelog=None):
"""get a file context from the working directory"""
return workingfilectx(self._repo, path, workingctx=self,
filelog=filelog)
def dirty(self, missing=False, merge=True, branch=True):
"check whether a working directory is modified"
# check subrepos first
for s in sorted(self.substate):
if self.sub(s).dirty():
return True
# check current working dir
return ((merge and self.p2()) or
(branch and self.branch() != self.p1().branch()) or
self.modified() or self.added() or self.removed() or
(missing and self.deleted()))
def add(self, list, prefix=""):
join = lambda f: os.path.join(prefix, f)
wlock = self._repo.wlock()
ui, ds = self._repo.ui, self._repo.dirstate
try:
rejected = []
lstat = self._repo.wvfs.lstat
for f in list:
scmutil.checkportable(ui, join(f))
try:
st = lstat(f)
except OSError:
ui.warn(_("%s does not exist!\n") % join(f))
rejected.append(f)
continue
if st.st_size > 10000000:
ui.warn(_("%s: up to %d MB of RAM may be required "
"to manage this file\n"
"(use 'hg revert %s' to cancel the "
"pending addition)\n")
% (f, 3 * st.st_size // 1000000, join(f)))
if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
ui.warn(_("%s not added: only files and symlinks "
"supported currently\n") % join(f))
rejected.append(f)
elif ds[f] in 'amn':
ui.warn(_("%s already tracked!\n") % join(f))
elif ds[f] == 'r':
ds.normallookup(f)
else:
ds.add(f)
return rejected
finally:
wlock.release()
def forget(self, files, prefix=""):
join = lambda f: os.path.join(prefix, f)
wlock = self._repo.wlock()
try:
rejected = []
for f in files:
if f not in self._repo.dirstate:
self._repo.ui.warn(_("%s not tracked!\n") % join(f))
rejected.append(f)
elif self._repo.dirstate[f] != 'a':
self._repo.dirstate.remove(f)
else:
self._repo.dirstate.drop(f)
return rejected
finally:
wlock.release()
def undelete(self, list):
pctxs = self.parents()
wlock = self._repo.wlock()
try:
for f in list:
if self._repo.dirstate[f] != 'r':
self._repo.ui.warn(_("%s not removed!\n") % f)
else:
fctx = f in pctxs[0] and pctxs[0][f] or pctxs[1][f]
t = fctx.data()
self._repo.wwrite(f, t, fctx.flags())
self._repo.dirstate.normal(f)
finally:
wlock.release()
def copy(self, source, dest):
try:
st = self._repo.wvfs.lstat(dest)
except OSError, err:
if err.errno != errno.ENOENT:
raise
self._repo.ui.warn(_("%s does not exist!\n") % dest)
return
if not (stat.S_ISREG(st.st_mode) or stat.S_ISLNK(st.st_mode)):
self._repo.ui.warn(_("copy failed: %s is not a file or a "
"symbolic link\n") % dest)
else:
wlock = self._repo.wlock()
try:
if self._repo.dirstate[dest] in '?r':
self._repo.dirstate.add(dest)
self._repo.dirstate.copy(source, dest)
finally:
wlock.release()
def _filtersuspectsymlink(self, files):
if not files or self._repo.dirstate._checklink:
return files
# Symlink placeholders may get non-symlink-like contents
# via user error or dereferencing by NFS or Samba servers,
# so we filter out any placeholders that don't look like a
# symlink
sane = []
for f in files:
if self.flags(f) == 'l':
d = self[f].data()
if d == '' or len(d) >= 1024 or '\n' in d or util.binary(d):
self._repo.ui.debug('ignoring suspect symlink placeholder'
' "%s"\n' % f)
continue
sane.append(f)
return sane
def _checklookup(self, files):
# check for any possibly clean files
if not files:
return [], []
modified = []
fixup = []
pctx = self._parents[0]
# do a full compare of any files that might have changed
for f in sorted(files):
if (f not in pctx or self.flags(f) != pctx.flags(f)
or pctx[f].cmp(self[f])):
modified.append(f)
else:
fixup.append(f)
# update dirstate for files that are actually clean
if fixup:
try:
# updating the dirstate is optional
# so we don't wait on the lock
# wlock can invalidate the dirstate, so cache normal _after_
# taking the lock
wlock = self._repo.wlock(False)
normal = self._repo.dirstate.normal
try:
for f in fixup:
normal(f)
finally:
wlock.release()
except error.LockError:
pass
return modified, fixup
def _manifestmatches(self, match, s):
"""Slow path for workingctx
The fast path is when we compare the working directory to its parent
which means this function is comparing with a non-parent; therefore we
need to build a manifest and return what matches.
"""
mf = self._repo['.']._manifestmatches(match, s)
modified, added, removed = s[0:3]
for f in modified + added:
mf[f] = None
mf.set(f, self.flags(f))
for f in removed:
if f in mf:
del mf[f]
return mf
def _prestatus(self, other, s, match, listignored, listclean, listunknown):
"""override the parent hook with a dirstate query
We use this prestatus hook to populate the status with information from
the dirstate.
"""
# doesn't need to call super; if that changes, be aware that super
# calls self.manifest which would slow down the common case of calling
# status against a workingctx's parent
return self._dirstatestatus(match, listignored, listclean, listunknown)
def _poststatus(self, other, s, match, listignored, listclean, listunknown):
"""override the parent hook with a filter for suspect symlinks
We use this poststatus hook to filter out symlinks that might have
accidentally ended up with the entire contents of the file they are
susposed to be linking to.
"""
s[0] = self._filtersuspectsymlink(s[0])
self._status = s[:]
return s
def _dirstatestatus(self, match=None, ignored=False, clean=False,
unknown=False):
'''Gets the status from the dirstate -- internal use only.'''
listignored, listclean, listunknown = ignored, clean, unknown
match = match or matchmod.always(self._repo.root, self._repo.getcwd())
subrepos = []
if '.hgsub' in self:
subrepos = sorted(self.substate)
s = self._repo.dirstate.status(match, subrepos, listignored,
listclean, listunknown)
cmp, modified, added, removed, deleted, unknown, ignored, clean = s
# check for any possibly clean files
if cmp:
modified2, fixup = self._checklookup(cmp)
modified += modified2
# update dirstate for files that are actually clean
if fixup and listclean:
clean += fixup
return [modified, added, removed, deleted, unknown, ignored, clean]
def _buildstatus(self, other, s, match, listignored, listclean,
listunknown):
"""build a status with respect to another context
This includes logic for maintaining the fast path of status when
comparing the working directory against its parent, which is to skip
building a new manifest if self (working directory) is not comparing
against its parent (repo['.']).
"""
if other != self._repo['.']:
s = super(workingctx, self)._buildstatus(other, s, match,
listignored, listclean,
listunknown)
return s
def _matchstatus(self, other, s, match, listignored, listclean,
listunknown):
"""override the match method with a filter for directory patterns
We use inheritance to customize the match.bad method only in cases of
workingctx since it belongs only to the working directory when
comparing against the parent changeset.
If we aren't comparing against the working directory's parent, then we
just use the default match object sent to us.
"""
superself = super(workingctx, self)
match = superself._matchstatus(other, s, match, listignored, listclean,
listunknown)
if other != self._repo['.']:
def bad(f, msg):
# 'f' may be a directory pattern from 'match.files()',
# so 'f not in ctx1' is not enough
if f not in other and f not in other.dirs():
self._repo.ui.warn('%s: %s\n' %
(self._repo.dirstate.pathto(f), msg))
match.bad = bad
return match
def status(self, other='.', match=None, listignored=False,
listclean=False, listunknown=False, listsubrepos=False):
# yet to be determined: what to do if 'other' is a 'workingctx' or a
# 'memctx'?
s = super(workingctx, self).status(other, match, listignored, listclean,
listunknown, listsubrepos)
# calling 'super' subtly reveresed the contexts, so we flip the results
# (s[1] is 'added' and s[2] is 'removed')
s = list(s)
s[1], s[2] = s[2], s[1]
return tuple(s)
class committablefilectx(basefilectx):
"""A committablefilectx provides common functionality for a file context
that wants the ability to commit, e.g. workingfilectx or memfilectx."""
def __init__(self, repo, path, filelog=None, ctx=None):
self._repo = repo
self._path = path
self._changeid = None
self._filerev = self._filenode = None
if filelog is not None:
self._filelog = filelog
if ctx:
self._changectx = ctx
def __nonzero__(self):
return True
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 []
class workingfilectx(committablefilectx):
"""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):
super(workingfilectx, self).__init__(repo, path, filelog, workingctx)
@propertycache
def _changectx(self):
return workingctx(self._repo)
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 size(self):
return self._repo.wvfs.lstat(self._path).st_size
def date(self):
t, tz = self._changectx.date()
try:
return (int(self._repo.wvfs.lstat(self._path).st_mtime), tz)
except OSError, err:
if err.errno != errno.ENOENT:
raise
return (t, tz)
def cmp(self, fctx):
"""compare with other file context
returns True if different than fctx.
"""
# fctx should be a filectx (not a workingfilectx)
# invert comparison to reuse the same code path
return fctx.cmp(self)
def remove(self, ignoremissing=False):
"""wraps unlink for a repo's working directory"""
util.unlinkpath(self._repo.wjoin(self._path), ignoremissing)
def write(self, data, flags):
"""wraps repo.wwrite"""
self._repo.wwrite(self._path, data, flags)
class memctx(committablectx):
"""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, editor=False):
super(memctx, self).__init__(repo, text, user, date, extra)
self._rev = None
self._node = None
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.substate = {}
# if store is not callable, wrap it in a function
if not callable(filectxfn):
def getfilectx(repo, memctx, path):
fctx = filectxfn[path]
# this is weird but apparently we only keep track of one parent
# (why not only store that instead of a tuple?)
copied = fctx.renamed()
if copied:
copied = copied[0]
return memfilectx(repo, path, fctx.data(),
islink=fctx.islink(), isexec=fctx.isexec(),
copied=copied, memctx=memctx)
self._filectxfn = getfilectx
self._extra = extra and extra.copy() or {}
if self._extra.get('branch', '') == '':
self._extra['branch'] = 'default'
if editor:
self._text = editor(self._repo, self, [])
self._repo.savecommitmessage(self._text)
def filectx(self, path, filelog=None):
"""get a file context from the working directory"""
return self._filectxfn(self._repo, self, path)
def commit(self):
"""commit context to the repo"""
return self._repo.commitctx(self)
@propertycache
def _manifest(self):
"""generate a manifest based on the return values of filectxfn"""
# keep this simple for now; just worry about p1
pctx = self._parents[0]
man = pctx.manifest().copy()
for f, fnode in man.iteritems():
p1node = nullid
p2node = nullid
p = pctx[f].parents() # if file isn't in pctx, check p2?
if len(p) > 0:
p1node = p[0].node()
if len(p) > 1:
p2node = p[1].node()
man[f] = revlog.hash(self[f].data(), p1node, p2node)
return man
class memfilectx(committablefilectx):
"""memfilectx represents an in-memory file to commit.
See memctx and commitablefilectx for more details.
"""
def __init__(self, repo, path, data, islink=False,
isexec=False, copied=None, memctx=None):
"""
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."""
super(memfilectx, self).__init__(repo, path, None, memctx)
self._data = data
self._flags = (islink and 'l' or '') + (isexec and 'x' or '')
self._copied = None
if copied:
self._copied = (copied, nullid)
def data(self):
return self._data
def size(self):
return len(self.data())
def flags(self):
return self._flags
def renamed(self):
return self._copied
def remove(self, ignoremissing=False):
"""wraps unlink for a repo's working directory"""
# need to figure out what to do here
del self._changectx[self._path]
def write(self, data, flags):
"""wraps repo.wwrite"""
self._data = data