# scmutil.py - Mercurial core utility functions
#
# Copyright 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 __future__ import absolute_import
import errno
import glob
import hashlib
import os
import re
import socket
import subprocess
import weakref
from .i18n import _
from .node import (
hex,
nullid,
short,
wdirid,
wdirrev,
)
from . import (
encoding,
error,
match as matchmod,
obsolete,
obsutil,
pathutil,
phases,
pycompat,
revsetlang,
similar,
url,
util,
vfs,
)
if pycompat.iswindows:
from . import scmwindows as scmplatform
else:
from . import scmposix as scmplatform
termsize = scmplatform.termsize
class status(tuple):
'''Named tuple with a list of files per status. The 'deleted', 'unknown'
and 'ignored' properties are only relevant to the working copy.
'''
__slots__ = ()
def __new__(cls, modified, added, removed, deleted, unknown, ignored,
clean):
return tuple.__new__(cls, (modified, added, removed, deleted, unknown,
ignored, clean))
@property
def modified(self):
'''files that have been modified'''
return self[0]
@property
def added(self):
'''files that have been added'''
return self[1]
@property
def removed(self):
'''files that have been removed'''
return self[2]
@property
def deleted(self):
'''files that are in the dirstate, but have been deleted from the
working copy (aka "missing")
'''
return self[3]
@property
def unknown(self):
'''files not in the dirstate that are not ignored'''
return self[4]
@property
def ignored(self):
'''files not in the dirstate that are ignored (by _dirignore())'''
return self[5]
@property
def clean(self):
'''files that have not been modified'''
return self[6]
def __repr__(self, *args, **kwargs):
return (('<status modified=%r, added=%r, removed=%r, deleted=%r, '
'unknown=%r, ignored=%r, clean=%r>') % self)
def itersubrepos(ctx1, ctx2):
"""find subrepos in ctx1 or ctx2"""
# Create a (subpath, ctx) mapping where we prefer subpaths from
# ctx1. The subpaths from ctx2 are important when the .hgsub file
# has been modified (in ctx2) but not yet committed (in ctx1).
subpaths = dict.fromkeys(ctx2.substate, ctx2)
subpaths.update(dict.fromkeys(ctx1.substate, ctx1))
missing = set()
for subpath in ctx2.substate:
if subpath not in ctx1.substate:
del subpaths[subpath]
missing.add(subpath)
for subpath, ctx in sorted(subpaths.iteritems()):
yield subpath, ctx.sub(subpath)
# Yield an empty subrepo based on ctx1 for anything only in ctx2. That way,
# status and diff will have an accurate result when it does
# 'sub.{status|diff}(rev2)'. Otherwise, the ctx2 subrepo is compared
# against itself.
for subpath in missing:
yield subpath, ctx2.nullsub(subpath, ctx1)
def nochangesfound(ui, repo, excluded=None):
'''Report no changes for push/pull, excluded is None or a list of
nodes excluded from the push/pull.
'''
secretlist = []
if excluded:
for n in excluded:
ctx = repo[n]
if ctx.phase() >= phases.secret and not ctx.extinct():
secretlist.append(n)
if secretlist:
ui.status(_("no changes found (ignored %d secret changesets)\n")
% len(secretlist))
else:
ui.status(_("no changes found\n"))
def callcatch(ui, func):
"""call func() with global exception handling
return func() if no exception happens. otherwise do some error handling
and return an exit code accordingly. does not handle all exceptions.
"""
try:
try:
return func()
except: # re-raises
ui.traceback()
raise
# Global exception handling, alphabetically
# Mercurial-specific first, followed by built-in and library exceptions
except error.LockHeld as inst:
if inst.errno == errno.ETIMEDOUT:
reason = _('timed out waiting for lock held by %r') % inst.locker
else:
reason = _('lock held by %r') % inst.locker
ui.warn(_("abort: %s: %s\n") % (inst.desc or inst.filename, reason))
if not inst.locker:
ui.warn(_("(lock might be very busy)\n"))
except error.LockUnavailable as inst:
ui.warn(_("abort: could not lock %s: %s\n") %
(inst.desc or inst.filename,
encoding.strtolocal(inst.strerror)))
except error.OutOfBandError as inst:
if inst.args:
msg = _("abort: remote error:\n")
else:
msg = _("abort: remote error\n")
ui.warn(msg)
if inst.args:
ui.warn(''.join(inst.args))
if inst.hint:
ui.warn('(%s)\n' % inst.hint)
except error.RepoError as inst:
ui.warn(_("abort: %s!\n") % inst)
if inst.hint:
ui.warn(_("(%s)\n") % inst.hint)
except error.ResponseError as inst:
ui.warn(_("abort: %s") % inst.args[0])
if not isinstance(inst.args[1], basestring):
ui.warn(" %r\n" % (inst.args[1],))
elif not inst.args[1]:
ui.warn(_(" empty string\n"))
else:
ui.warn("\n%r\n" % util.ellipsis(inst.args[1]))
except error.CensoredNodeError as inst:
ui.warn(_("abort: file censored %s!\n") % inst)
except error.RevlogError as inst:
ui.warn(_("abort: %s!\n") % inst)
except error.InterventionRequired as inst:
ui.warn("%s\n" % inst)
if inst.hint:
ui.warn(_("(%s)\n") % inst.hint)
return 1
except error.WdirUnsupported:
ui.warn(_("abort: working directory revision cannot be specified\n"))
except error.Abort as inst:
ui.warn(_("abort: %s\n") % inst)
if inst.hint:
ui.warn(_("(%s)\n") % inst.hint)
except ImportError as inst:
ui.warn(_("abort: %s!\n") % inst)
m = str(inst).split()[-1]
if m in "mpatch bdiff".split():
ui.warn(_("(did you forget to compile extensions?)\n"))
elif m in "zlib".split():
ui.warn(_("(is your Python install correct?)\n"))
except IOError as inst:
if util.safehasattr(inst, "code"):
ui.warn(_("abort: %s\n") % inst)
elif util.safehasattr(inst, "reason"):
try: # usually it is in the form (errno, strerror)
reason = inst.reason.args[1]
except (AttributeError, IndexError):
# it might be anything, for example a string
reason = inst.reason
if isinstance(reason, unicode):
# SSLError of Python 2.7.9 contains a unicode
reason = encoding.unitolocal(reason)
ui.warn(_("abort: error: %s\n") % reason)
elif (util.safehasattr(inst, "args")
and inst.args and inst.args[0] == errno.EPIPE):
pass
elif getattr(inst, "strerror", None):
if getattr(inst, "filename", None):
ui.warn(_("abort: %s: %s\n") % (
encoding.strtolocal(inst.strerror), inst.filename))
else:
ui.warn(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
else:
raise
except OSError as inst:
if getattr(inst, "filename", None) is not None:
ui.warn(_("abort: %s: '%s'\n") % (
encoding.strtolocal(inst.strerror), inst.filename))
else:
ui.warn(_("abort: %s\n") % encoding.strtolocal(inst.strerror))
except MemoryError:
ui.warn(_("abort: out of memory\n"))
except SystemExit as inst:
# Commands shouldn't sys.exit directly, but give a return code.
# Just in case catch this and and pass exit code to caller.
return inst.code
except socket.error as inst:
ui.warn(_("abort: %s\n") % inst.args[-1])
return -1
def checknewlabel(repo, lbl, kind):
# Do not use the "kind" parameter in ui output.
# It makes strings difficult to translate.
if lbl in ['tip', '.', 'null']:
raise error.Abort(_("the name '%s' is reserved") % lbl)
for c in (':', '\0', '\n', '\r'):
if c in lbl:
raise error.Abort(_("%r cannot be used in a name") % c)
try:
int(lbl)
raise error.Abort(_("cannot use an integer as a name"))
except ValueError:
pass
def checkfilename(f):
'''Check that the filename f is an acceptable filename for a tracked file'''
if '\r' in f or '\n' in f:
raise error.Abort(_("'\\n' and '\\r' disallowed in filenames: %r") % f)
def checkportable(ui, f):
'''Check if filename f is portable and warn or abort depending on config'''
checkfilename(f)
abort, warn = checkportabilityalert(ui)
if abort or warn:
msg = util.checkwinfilename(f)
if msg:
msg = "%s: %s" % (msg, util.shellquote(f))
if abort:
raise error.Abort(msg)
ui.warn(_("warning: %s\n") % msg)
def checkportabilityalert(ui):
'''check if the user's config requests nothing, a warning, or abort for
non-portable filenames'''
val = ui.config('ui', 'portablefilenames')
lval = val.lower()
bval = util.parsebool(val)
abort = pycompat.iswindows or lval == 'abort'
warn = bval or lval == 'warn'
if bval is None and not (warn or abort or lval == 'ignore'):
raise error.ConfigError(
_("ui.portablefilenames value is invalid ('%s')") % val)
return abort, warn
class casecollisionauditor(object):
def __init__(self, ui, abort, dirstate):
self._ui = ui
self._abort = abort
allfiles = '\0'.join(dirstate._map)
self._loweredfiles = set(encoding.lower(allfiles).split('\0'))
self._dirstate = dirstate
# The purpose of _newfiles is so that we don't complain about
# case collisions if someone were to call this object with the
# same filename twice.
self._newfiles = set()
def __call__(self, f):
if f in self._newfiles:
return
fl = encoding.lower(f)
if fl in self._loweredfiles and f not in self._dirstate:
msg = _('possible case-folding collision for %s') % f
if self._abort:
raise error.Abort(msg)
self._ui.warn(_("warning: %s\n") % msg)
self._loweredfiles.add(fl)
self._newfiles.add(f)
def filteredhash(repo, maxrev):
"""build hash of filtered revisions in the current repoview.
Multiple caches perform up-to-date validation by checking that the
tiprev and tipnode stored in the cache file match the current repository.
However, this is not sufficient for validating repoviews because the set
of revisions in the view may change without the repository tiprev and
tipnode changing.
This function hashes all the revs filtered from the view and returns
that SHA-1 digest.
"""
cl = repo.changelog
if not cl.filteredrevs:
return None
key = None
revs = sorted(r for r in cl.filteredrevs if r <= maxrev)
if revs:
s = hashlib.sha1()
for rev in revs:
s.update('%d;' % rev)
key = s.digest()
return key
def walkrepos(path, followsym=False, seen_dirs=None, recurse=False):
'''yield every hg repository under path, always recursively.
The recurse flag will only control recursion into repo working dirs'''
def errhandler(err):
if err.filename == path:
raise err
samestat = getattr(os.path, 'samestat', None)
if followsym and samestat is not None:
def adddir(dirlst, dirname):
match = False
dirstat = os.stat(dirname)
for lstdirstat in dirlst:
if samestat(dirstat, lstdirstat):
match = True
break
if not match:
dirlst.append(dirstat)
return not match
else:
followsym = False
if (seen_dirs is None) and followsym:
seen_dirs = []
adddir(seen_dirs, path)
for root, dirs, files in os.walk(path, topdown=True, onerror=errhandler):
dirs.sort()
if '.hg' in dirs:
yield root # found a repository
qroot = os.path.join(root, '.hg', 'patches')
if os.path.isdir(os.path.join(qroot, '.hg')):
yield qroot # we have a patch queue repo here
if recurse:
# avoid recursing inside the .hg directory
dirs.remove('.hg')
else:
dirs[:] = [] # don't descend further
elif followsym:
newdirs = []
for d in dirs:
fname = os.path.join(root, d)
if adddir(seen_dirs, fname):
if os.path.islink(fname):
for hgname in walkrepos(fname, True, seen_dirs):
yield hgname
else:
newdirs.append(d)
dirs[:] = newdirs
def binnode(ctx):
"""Return binary node id for a given basectx"""
node = ctx.node()
if node is None:
return wdirid
return node
def intrev(ctx):
"""Return integer for a given basectx that can be used in comparison or
arithmetic operation"""
rev = ctx.rev()
if rev is None:
return wdirrev
return rev
def formatchangeid(ctx):
"""Format changectx as '{rev}:{node|formatnode}', which is the default
template provided by cmdutil.changeset_templater"""
repo = ctx.repo()
return formatrevnode(repo.ui, intrev(ctx), binnode(ctx))
def formatrevnode(ui, rev, node):
"""Format given revision and node depending on the current verbosity"""
if ui.debugflag:
hexfunc = hex
else:
hexfunc = short
return '%d:%s' % (rev, hexfunc(node))
def revsingle(repo, revspec, default='.', localalias=None):
if not revspec and revspec != 0:
return repo[default]
l = revrange(repo, [revspec], localalias=localalias)
if not l:
raise error.Abort(_('empty revision set'))
return repo[l.last()]
def _pairspec(revspec):
tree = revsetlang.parse(revspec)
return tree and tree[0] in ('range', 'rangepre', 'rangepost', 'rangeall')
def revpair(repo, revs):
if not revs:
return repo.dirstate.p1(), None
l = revrange(repo, revs)
if not l:
first = second = None
elif l.isascending():
first = l.min()
second = l.max()
elif l.isdescending():
first = l.max()
second = l.min()
else:
first = l.first()
second = l.last()
if first is None:
raise error.Abort(_('empty revision range'))
if (first == second and len(revs) >= 2
and not all(revrange(repo, [r]) for r in revs)):
raise error.Abort(_('empty revision on one side of range'))
# if top-level is range expression, the result must always be a pair
if first == second and len(revs) == 1 and not _pairspec(revs[0]):
return repo.lookup(first), None
return repo.lookup(first), repo.lookup(second)
def revrange(repo, specs, localalias=None):
"""Execute 1 to many revsets and return the union.
This is the preferred mechanism for executing revsets using user-specified
config options, such as revset aliases.
The revsets specified by ``specs`` will be executed via a chained ``OR``
expression. If ``specs`` is empty, an empty result is returned.
``specs`` can contain integers, in which case they are assumed to be
revision numbers.
It is assumed the revsets are already formatted. If you have arguments
that need to be expanded in the revset, call ``revsetlang.formatspec()``
and pass the result as an element of ``specs``.
Specifying a single revset is allowed.
Returns a ``revset.abstractsmartset`` which is a list-like interface over
integer revisions.
"""
allspecs = []
for spec in specs:
if isinstance(spec, int):
spec = revsetlang.formatspec('rev(%d)', spec)
allspecs.append(spec)
return repo.anyrevs(allspecs, user=True, localalias=localalias)
def meaningfulparents(repo, ctx):
"""Return list of meaningful (or all if debug) parentrevs for rev.
For merges (two non-nullrev revisions) both parents are meaningful.
Otherwise the first parent revision is considered meaningful if it
is not the preceding revision.
"""
parents = ctx.parents()
if len(parents) > 1:
return parents
if repo.ui.debugflag:
return [parents[0], repo['null']]
if parents[0].rev() >= intrev(ctx) - 1:
return []
return parents
def expandpats(pats):
'''Expand bare globs when running on windows.
On posix we assume it already has already been done by sh.'''
if not util.expandglobs:
return list(pats)
ret = []
for kindpat in pats:
kind, pat = matchmod._patsplit(kindpat, None)
if kind is None:
try:
globbed = glob.glob(pat)
except re.error:
globbed = [pat]
if globbed:
ret.extend(globbed)
continue
ret.append(kindpat)
return ret
def matchandpats(ctx, pats=(), opts=None, globbed=False, default='relpath',
badfn=None):
'''Return a matcher and the patterns that were used.
The matcher will warn about bad matches, unless an alternate badfn callback
is provided.'''
if pats == ("",):
pats = []
if opts is None:
opts = {}
if not globbed and default == 'relpath':
pats = expandpats(pats or [])
def bad(f, msg):
ctx.repo().ui.warn("%s: %s\n" % (m.rel(f), msg))
if badfn is None:
badfn = bad
m = ctx.match(pats, opts.get('include'), opts.get('exclude'),
default, listsubrepos=opts.get('subrepos'), badfn=badfn)
if m.always():
pats = []
return m, pats
def match(ctx, pats=(), opts=None, globbed=False, default='relpath',
badfn=None):
'''Return a matcher that will warn about bad matches.'''
return matchandpats(ctx, pats, opts, globbed, default, badfn=badfn)[0]
def matchall(repo):
'''Return a matcher that will efficiently match everything.'''
return matchmod.always(repo.root, repo.getcwd())
def matchfiles(repo, files, badfn=None):
'''Return a matcher that will efficiently match exactly these files.'''
return matchmod.exact(repo.root, repo.getcwd(), files, badfn=badfn)
def parsefollowlinespattern(repo, rev, pat, msg):
"""Return a file name from `pat` pattern suitable for usage in followlines
logic.
"""
if not matchmod.patkind(pat):
return pathutil.canonpath(repo.root, repo.getcwd(), pat)
else:
ctx = repo[rev]
m = matchmod.match(repo.root, repo.getcwd(), [pat], ctx=ctx)
files = [f for f in ctx if m(f)]
if len(files) != 1:
raise error.ParseError(msg)
return files[0]
def origpath(ui, repo, filepath):
'''customize where .orig files are created
Fetch user defined path from config file: [ui] origbackuppath = <path>
Fall back to default (filepath with .orig suffix) if not specified
'''
origbackuppath = ui.config('ui', 'origbackuppath')
if not origbackuppath:
return filepath + ".orig"
# Convert filepath from an absolute path into a path inside the repo.
filepathfromroot = util.normpath(os.path.relpath(filepath,
start=repo.root))
origvfs = vfs.vfs(repo.wjoin(origbackuppath))
origbackupdir = origvfs.dirname(filepathfromroot)
if not origvfs.isdir(origbackupdir) or origvfs.islink(origbackupdir):
ui.note(_('creating directory: %s\n') % origvfs.join(origbackupdir))
# Remove any files that conflict with the backup file's path
for f in reversed(list(util.finddirs(filepathfromroot))):
if origvfs.isfileorlink(f):
ui.note(_('removing conflicting file: %s\n')
% origvfs.join(f))
origvfs.unlink(f)
break
origvfs.makedirs(origbackupdir)
if origvfs.isdir(filepathfromroot) and not origvfs.islink(filepathfromroot):
ui.note(_('removing conflicting directory: %s\n')
% origvfs.join(filepathfromroot))
origvfs.rmtree(filepathfromroot, forcibly=True)
return origvfs.join(filepathfromroot)
class _containsnode(object):
"""proxy __contains__(node) to container.__contains__ which accepts revs"""
def __init__(self, repo, revcontainer):
self._torev = repo.changelog.rev
self._revcontains = revcontainer.__contains__
def __contains__(self, node):
return self._revcontains(self._torev(node))
def cleanupnodes(repo, replacements, operation, moves=None, metadata=None):
"""do common cleanups when old nodes are replaced by new nodes
That includes writing obsmarkers or stripping nodes, and moving bookmarks.
(we might also want to move working directory parent in the future)
By default, bookmark moves are calculated automatically from 'replacements',
but 'moves' can be used to override that. Also, 'moves' may include
additional bookmark moves that should not have associated obsmarkers.
replacements is {oldnode: [newnode]} or a iterable of nodes if they do not
have replacements. operation is a string, like "rebase".
metadata is dictionary containing metadata to be stored in obsmarker if
obsolescence is enabled.
"""
if not replacements and not moves:
return
# translate mapping's other forms
if not util.safehasattr(replacements, 'items'):
replacements = {n: () for n in replacements}
# Calculate bookmark movements
if moves is None:
moves = {}
# Unfiltered repo is needed since nodes in replacements might be hidden.
unfi = repo.unfiltered()
for oldnode, newnodes in replacements.items():
if oldnode in moves:
continue
if len(newnodes) > 1:
# usually a split, take the one with biggest rev number
newnode = next(unfi.set('max(%ln)', newnodes)).node()
elif len(newnodes) == 0:
# move bookmark backwards
roots = list(unfi.set('max((::%n) - %ln)', oldnode,
list(replacements)))
if roots:
newnode = roots[0].node()
else:
newnode = nullid
else:
newnode = newnodes[0]
moves[oldnode] = newnode
with repo.transaction('cleanup') as tr:
# Move bookmarks
bmarks = repo._bookmarks
bmarkchanges = []
allnewnodes = [n for ns in replacements.values() for n in ns]
for oldnode, newnode in moves.items():
oldbmarks = repo.nodebookmarks(oldnode)
if not oldbmarks:
continue
from . import bookmarks # avoid import cycle
repo.ui.debug('moving bookmarks %r from %s to %s\n' %
(oldbmarks, hex(oldnode), hex(newnode)))
# Delete divergent bookmarks being parents of related newnodes
deleterevs = repo.revs('parents(roots(%ln & (::%n))) - parents(%n)',
allnewnodes, newnode, oldnode)
deletenodes = _containsnode(repo, deleterevs)
for name in oldbmarks:
bmarkchanges.append((name, newnode))
for b in bookmarks.divergent2delete(repo, deletenodes, name):
bmarkchanges.append((b, None))
if bmarkchanges:
bmarks.applychanges(repo, tr, bmarkchanges)
# Obsolete or strip nodes
if obsolete.isenabled(repo, obsolete.createmarkersopt):
# If a node is already obsoleted, and we want to obsolete it
# without a successor, skip that obssolete request since it's
# unnecessary. That's the "if s or not isobs(n)" check below.
# Also sort the node in topology order, that might be useful for
# some obsstore logic.
# NOTE: the filtering and sorting might belong to createmarkers.
isobs = unfi.obsstore.successors.__contains__
torev = unfi.changelog.rev
sortfunc = lambda ns: torev(ns[0])
rels = [(unfi[n], tuple(unfi[m] for m in s))
for n, s in sorted(replacements.items(), key=sortfunc)
if s or not isobs(n)]
if rels:
obsolete.createmarkers(repo, rels, operation=operation,
metadata=metadata)
else:
from . import repair # avoid import cycle
tostrip = list(replacements)
if tostrip:
repair.delayedstrip(repo.ui, repo, tostrip, operation)
def addremove(repo, matcher, prefix, opts=None, dry_run=None, similarity=None):
if opts is None:
opts = {}
m = matcher
if dry_run is None:
dry_run = opts.get('dry_run')
if similarity is None:
similarity = float(opts.get('similarity') or 0)
ret = 0
join = lambda f: os.path.join(prefix, f)
wctx = repo[None]
for subpath in sorted(wctx.substate):
submatch = matchmod.subdirmatcher(subpath, m)
if opts.get('subrepos') or m.exact(subpath) or any(submatch.files()):
sub = wctx.sub(subpath)
try:
if sub.addremove(submatch, prefix, opts, dry_run, similarity):
ret = 1
except error.LookupError:
repo.ui.status(_("skipping missing subrepository: %s\n")
% join(subpath))
rejected = []
def badfn(f, msg):
if f in m.files():
m.bad(f, msg)
rejected.append(f)
badmatch = matchmod.badmatch(m, badfn)
added, unknown, deleted, removed, forgotten = _interestingfiles(repo,
badmatch)
unknownset = set(unknown + forgotten)
toprint = unknownset.copy()
toprint.update(deleted)
for abs in sorted(toprint):
if repo.ui.verbose or not m.exact(abs):
if abs in unknownset:
status = _('adding %s\n') % m.uipath(abs)
else:
status = _('removing %s\n') % m.uipath(abs)
repo.ui.status(status)
renames = _findrenames(repo, m, added + unknown, removed + deleted,
similarity)
if not dry_run:
_markchanges(repo, unknown + forgotten, deleted, renames)
for f in rejected:
if f in m.files():
return 1
return ret
def marktouched(repo, files, similarity=0.0):
'''Assert that files have somehow been operated upon. files are relative to
the repo root.'''
m = matchfiles(repo, files, badfn=lambda x, y: rejected.append(x))
rejected = []
added, unknown, deleted, removed, forgotten = _interestingfiles(repo, m)
if repo.ui.verbose:
unknownset = set(unknown + forgotten)
toprint = unknownset.copy()
toprint.update(deleted)
for abs in sorted(toprint):
if abs in unknownset:
status = _('adding %s\n') % abs
else:
status = _('removing %s\n') % abs
repo.ui.status(status)
renames = _findrenames(repo, m, added + unknown, removed + deleted,
similarity)
_markchanges(repo, unknown + forgotten, deleted, renames)
for f in rejected:
if f in m.files():
return 1
return 0
def _interestingfiles(repo, matcher):
'''Walk dirstate with matcher, looking for files that addremove would care
about.
This is different from dirstate.status because it doesn't care about
whether files are modified or clean.'''
added, unknown, deleted, removed, forgotten = [], [], [], [], []
audit_path = pathutil.pathauditor(repo.root, cached=True)
ctx = repo[None]
dirstate = repo.dirstate
walkresults = dirstate.walk(matcher, subrepos=sorted(ctx.substate),
unknown=True, ignored=False, full=False)
for abs, st in walkresults.iteritems():
dstate = dirstate[abs]
if dstate == '?' and audit_path.check(abs):
unknown.append(abs)
elif dstate != 'r' and not st:
deleted.append(abs)
elif dstate == 'r' and st:
forgotten.append(abs)
# for finding renames
elif dstate == 'r' and not st:
removed.append(abs)
elif dstate == 'a':
added.append(abs)
return added, unknown, deleted, removed, forgotten
def _findrenames(repo, matcher, added, removed, similarity):
'''Find renames from removed files to added ones.'''
renames = {}
if similarity > 0:
for old, new, score in similar.findrenames(repo, added, removed,
similarity):
if (repo.ui.verbose or not matcher.exact(old)
or not matcher.exact(new)):
repo.ui.status(_('recording removal of %s as rename to %s '
'(%d%% similar)\n') %
(matcher.rel(old), matcher.rel(new),
score * 100))
renames[new] = old
return renames
def _markchanges(repo, unknown, deleted, renames):
'''Marks the files in unknown as added, the files in deleted as removed,
and the files in renames as copied.'''
wctx = repo[None]
with repo.wlock():
wctx.forget(deleted)
wctx.add(unknown)
for new, old in renames.iteritems():
wctx.copy(old, new)
def dirstatecopy(ui, repo, wctx, src, dst, dryrun=False, cwd=None):
"""Update the dirstate to reflect the intent of copying src to dst. For
different reasons it might not end with dst being marked as copied from src.
"""
origsrc = repo.dirstate.copied(src) or src
if dst == origsrc: # copying back a copy?
if repo.dirstate[dst] not in 'mn' and not dryrun:
repo.dirstate.normallookup(dst)
else:
if repo.dirstate[origsrc] == 'a' and origsrc == src:
if not ui.quiet:
ui.warn(_("%s has not been committed yet, so no copy "
"data will be stored for %s.\n")
% (repo.pathto(origsrc, cwd), repo.pathto(dst, cwd)))
if repo.dirstate[dst] in '?r' and not dryrun:
wctx.add([dst])
elif not dryrun:
wctx.copy(origsrc, dst)
def readrequires(opener, supported):
'''Reads and parses .hg/requires and checks if all entries found
are in the list of supported features.'''
requirements = set(opener.read("requires").splitlines())
missings = []
for r in requirements:
if r not in supported:
if not r or not r[0].isalnum():
raise error.RequirementError(_(".hg/requires file is corrupt"))
missings.append(r)
missings.sort()
if missings:
raise error.RequirementError(
_("repository requires features unknown to this Mercurial: %s")
% " ".join(missings),
hint=_("see https://mercurial-scm.org/wiki/MissingRequirement"
" for more information"))
return requirements
def writerequires(opener, requirements):
with opener('requires', 'w') as fp:
for r in sorted(requirements):
fp.write("%s\n" % r)
class filecachesubentry(object):
def __init__(self, path, stat):
self.path = path
self.cachestat = None
self._cacheable = None
if stat:
self.cachestat = filecachesubentry.stat(self.path)
if self.cachestat:
self._cacheable = self.cachestat.cacheable()
else:
# None means we don't know yet
self._cacheable = None
def refresh(self):
if self.cacheable():
self.cachestat = filecachesubentry.stat(self.path)
def cacheable(self):
if self._cacheable is not None:
return self._cacheable
# we don't know yet, assume it is for now
return True
def changed(self):
# no point in going further if we can't cache it
if not self.cacheable():
return True
newstat = filecachesubentry.stat(self.path)
# we may not know if it's cacheable yet, check again now
if newstat and self._cacheable is None:
self._cacheable = newstat.cacheable()
# check again
if not self._cacheable:
return True
if self.cachestat != newstat:
self.cachestat = newstat
return True
else:
return False
@staticmethod
def stat(path):
try:
return util.cachestat(path)
except OSError as e:
if e.errno != errno.ENOENT:
raise
class filecacheentry(object):
def __init__(self, paths, stat=True):
self._entries = []
for path in paths:
self._entries.append(filecachesubentry(path, stat))
def changed(self):
'''true if any entry has changed'''
for entry in self._entries:
if entry.changed():
return True
return False
def refresh(self):
for entry in self._entries:
entry.refresh()
class filecache(object):
'''A property like decorator that tracks files under .hg/ for updates.
Records stat info when called in _filecache.
On subsequent calls, compares old stat info with new info, and recreates the
object when any of the files changes, updating the new stat info in
_filecache.
Mercurial either atomic renames or appends for files under .hg,
so to ensure the cache is reliable we need the filesystem to be able
to tell us if a file has been replaced. If it can't, we fallback to
recreating the object on every call (essentially the same behavior as
propertycache).
'''
def __init__(self, *paths):
self.paths = paths
def join(self, obj, fname):
"""Used to compute the runtime path of a cached file.
Users should subclass filecache and provide their own version of this
function to call the appropriate join function on 'obj' (an instance
of the class that its member function was decorated).
"""
raise NotImplementedError
def __call__(self, func):
self.func = func
self.name = func.__name__.encode('ascii')
return self
def __get__(self, obj, type=None):
# if accessed on the class, return the descriptor itself.
if obj is None:
return self
# do we need to check if the file changed?
if self.name in obj.__dict__:
assert self.name in obj._filecache, self.name
return obj.__dict__[self.name]
entry = obj._filecache.get(self.name)
if entry:
if entry.changed():
entry.obj = self.func(obj)
else:
paths = [self.join(obj, path) for path in self.paths]
# We stat -before- creating the object so our cache doesn't lie if
# a writer modified between the time we read and stat
entry = filecacheentry(paths, True)
entry.obj = self.func(obj)
obj._filecache[self.name] = entry
obj.__dict__[self.name] = entry.obj
return entry.obj
def __set__(self, obj, value):
if self.name not in obj._filecache:
# we add an entry for the missing value because X in __dict__
# implies X in _filecache
paths = [self.join(obj, path) for path in self.paths]
ce = filecacheentry(paths, False)
obj._filecache[self.name] = ce
else:
ce = obj._filecache[self.name]
ce.obj = value # update cached copy
obj.__dict__[self.name] = value # update copy returned by obj.x
def __delete__(self, obj):
try:
del obj.__dict__[self.name]
except KeyError:
raise AttributeError(self.name)
def extdatasource(repo, source):
"""Gather a map of rev -> value dict from the specified source
A source spec is treated as a URL, with a special case shell: type
for parsing the output from a shell command.
The data is parsed as a series of newline-separated records where
each record is a revision specifier optionally followed by a space
and a freeform string value. If the revision is known locally, it
is converted to a rev, otherwise the record is skipped.
Note that both key and value are treated as UTF-8 and converted to
the local encoding. This allows uniformity between local and
remote data sources.
"""
spec = repo.ui.config("extdata", source)
if not spec:
raise error.Abort(_("unknown extdata source '%s'") % source)
data = {}
src = proc = None
try:
if spec.startswith("shell:"):
# external commands should be run relative to the repo root
cmd = spec[6:]
proc = subprocess.Popen(cmd, shell=True, bufsize=-1,
close_fds=util.closefds,
stdout=subprocess.PIPE, cwd=repo.root)
src = proc.stdout
else:
# treat as a URL or file
src = url.open(repo.ui, spec)
for l in src:
if " " in l:
k, v = l.strip().split(" ", 1)
else:
k, v = l.strip(), ""
k = encoding.tolocal(k)
try:
data[repo[k].rev()] = encoding.tolocal(v)
except (error.LookupError, error.RepoLookupError):
pass # we ignore data for nodes that don't exist locally
finally:
if proc:
proc.communicate()
if src:
src.close()
if proc and proc.returncode != 0:
raise error.Abort(_("extdata command '%s' failed: %s")
% (cmd, util.explainexit(proc.returncode)[0]))
return data
def _locksub(repo, lock, envvar, cmd, environ=None, *args, **kwargs):
if lock is None:
raise error.LockInheritanceContractViolation(
'lock can only be inherited while held')
if environ is None:
environ = {}
with lock.inherit() as locker:
environ[envvar] = locker
return repo.ui.system(cmd, environ=environ, *args, **kwargs)
def wlocksub(repo, cmd, *args, **kwargs):
"""run cmd as a subprocess that allows inheriting repo's wlock
This can only be called while the wlock is held. This takes all the
arguments that ui.system does, and returns the exit code of the
subprocess."""
return _locksub(repo, repo.currentwlock(), 'HG_WLOCK_LOCKER', cmd, *args,
**kwargs)
def gdinitconfig(ui):
"""helper function to know if a repo should be created as general delta
"""
# experimental config: format.generaldelta
return (ui.configbool('format', 'generaldelta')
or ui.configbool('format', 'usegeneraldelta'))
def gddeltaconfig(ui):
"""helper function to know if incoming delta should be optimised
"""
# experimental config: format.generaldelta
return ui.configbool('format', 'generaldelta')
class simplekeyvaluefile(object):
"""A simple file with key=value lines
Keys must be alphanumerics and start with a letter, values must not
contain '\n' characters"""
firstlinekey = '__firstline'
def __init__(self, vfs, path, keys=None):
self.vfs = vfs
self.path = path
def read(self, firstlinenonkeyval=False):
"""Read the contents of a simple key-value file
'firstlinenonkeyval' indicates whether the first line of file should
be treated as a key-value pair or reuturned fully under the
__firstline key."""
lines = self.vfs.readlines(self.path)
d = {}
if firstlinenonkeyval:
if not lines:
e = _("empty simplekeyvalue file")
raise error.CorruptedState(e)
# we don't want to include '\n' in the __firstline
d[self.firstlinekey] = lines[0][:-1]
del lines[0]
try:
# the 'if line.strip()' part prevents us from failing on empty
# lines which only contain '\n' therefore are not skipped
# by 'if line'
updatedict = dict(line[:-1].split('=', 1) for line in lines
if line.strip())
if self.firstlinekey in updatedict:
e = _("%r can't be used as a key")
raise error.CorruptedState(e % self.firstlinekey)
d.update(updatedict)
except ValueError as e:
raise error.CorruptedState(str(e))
return d
def write(self, data, firstline=None):
"""Write key=>value mapping to a file
data is a dict. Keys must be alphanumerical and start with a letter.
Values must not contain newline characters.
If 'firstline' is not None, it is written to file before
everything else, as it is, not in a key=value form"""
lines = []
if firstline is not None:
lines.append('%s\n' % firstline)
for k, v in data.items():
if k == self.firstlinekey:
e = "key name '%s' is reserved" % self.firstlinekey
raise error.ProgrammingError(e)
if not k[0].isalpha():
e = "keys must start with a letter in a key-value file"
raise error.ProgrammingError(e)
if not k.isalnum():
e = "invalid key name in a simple key-value file"
raise error.ProgrammingError(e)
if '\n' in v:
e = "invalid value in a simple key-value file"
raise error.ProgrammingError(e)
lines.append("%s=%s\n" % (k, v))
with self.vfs(self.path, mode='wb', atomictemp=True) as fp:
fp.write(''.join(lines))
_reportobsoletedsource = [
'debugobsolete',
'pull',
'push',
'serve',
'unbundle',
]
_reportnewcssource = [
'pull',
'unbundle',
]
# A marker that tells the evolve extension to suppress its own reporting
_reportstroubledchangesets = True
def registersummarycallback(repo, otr, txnname=''):
"""register a callback to issue a summary after the transaction is closed
"""
def txmatch(sources):
return any(txnname.startswith(source) for source in sources)
categories = []
def reportsummary(func):
"""decorator for report callbacks."""
# The repoview life cycle is shorter than the one of the actual
# underlying repository. So the filtered object can die before the
# weakref is used leading to troubles. We keep a reference to the
# unfiltered object and restore the filtering when retrieving the
# repository through the weakref.
filtername = repo.filtername
reporef = weakref.ref(repo.unfiltered())
def wrapped(tr):
repo = reporef()
if filtername:
repo = repo.filtered(filtername)
func(repo, tr)
newcat = '%02i-txnreport' % len(categories)
otr.addpostclose(newcat, wrapped)
categories.append(newcat)
return wrapped
if txmatch(_reportobsoletedsource):
@reportsummary
def reportobsoleted(repo, tr):
obsoleted = obsutil.getobsoleted(repo, tr)
if obsoleted:
repo.ui.status(_('obsoleted %i changesets\n')
% len(obsoleted))
if (obsolete.isenabled(repo, obsolete.createmarkersopt) and
repo.ui.configbool('experimental', 'evolution.report-instabilities')):
instabilitytypes = [
('orphan', 'orphan'),
('phase-divergent', 'phasedivergent'),
('content-divergent', 'contentdivergent'),
]
def getinstabilitycounts(repo):
filtered = repo.changelog.filteredrevs
counts = {}
for instability, revset in instabilitytypes:
counts[instability] = len(set(obsolete.getrevs(repo, revset)) -
filtered)
return counts
oldinstabilitycounts = getinstabilitycounts(repo)
@reportsummary
def reportnewinstabilities(repo, tr):
newinstabilitycounts = getinstabilitycounts(repo)
for instability, revset in instabilitytypes:
delta = (newinstabilitycounts[instability] -
oldinstabilitycounts[instability])
if delta > 0:
repo.ui.warn(_('%i new %s changesets\n') %
(delta, instability))
if txmatch(_reportnewcssource):
@reportsummary
def reportnewcs(repo, tr):
"""Report the range of new revisions pulled/unbundled."""
newrevs = tr.changes.get('revs', xrange(0, 0))
if not newrevs:
return
# Compute the bounds of new revisions' range, excluding obsoletes.
unfi = repo.unfiltered()
revs = unfi.revs('%ld and not obsolete()', newrevs)
if not revs:
# Got only obsoletes.
return
minrev, maxrev = repo[revs.min()], repo[revs.max()]
if minrev == maxrev:
revrange = minrev
else:
revrange = '%s:%s' % (minrev, maxrev)
repo.ui.status(_('new changesets %s\n') % revrange)
def nodesummaries(repo, nodes, maxnumnodes=4):
if len(nodes) <= maxnumnodes or repo.ui.verbose:
return ' '.join(short(h) for h in nodes)
first = ' '.join(short(h) for h in nodes[:maxnumnodes])
return _("%s and %d others") % (first, len(nodes) - maxnumnodes)
def enforcesinglehead(repo, tr, desc):
"""check that no named branch has multiple heads"""
if desc in ('strip', 'repair'):
# skip the logic during strip
return
visible = repo.filtered('visible')
# possible improvement: we could restrict the check to affected branch
for name, heads in visible.branchmap().iteritems():
if len(heads) > 1:
msg = _('rejecting multiple heads on branch "%s"')
msg %= name
hint = _('%d heads: %s')
hint %= (len(heads), nodesummaries(repo, heads))
raise error.Abort(msg, hint=hint)
def wrapconvertsink(sink):
"""Allow extensions to wrap the sink returned by convcmd.convertsink()
before it is used, whether or not the convert extension was formally loaded.
"""
return sink
def unhidehashlikerevs(repo, specs, hiddentype):
"""parse the user specs and unhide changesets whose hash or revision number
is passed.
hiddentype can be: 1) 'warn': warn while unhiding changesets
2) 'nowarn': don't warn while unhiding changesets
returns a repo object with the required changesets unhidden
"""
if not repo.filtername or not repo.ui.configbool('experimental',
'directaccess'):
return repo
if repo.filtername not in ('visible', 'visible-hidden'):
return repo
symbols = set()
for spec in specs:
try:
tree = revsetlang.parse(spec)
except error.ParseError: # will be reported by scmutil.revrange()
continue
symbols.update(revsetlang.gethashlikesymbols(tree))
if not symbols:
return repo
revs = _getrevsfromsymbols(repo, symbols)
if not revs:
return repo
if hiddentype == 'warn':
unfi = repo.unfiltered()
revstr = ", ".join([pycompat.bytestr(unfi[l]) for l in revs])
repo.ui.warn(_("warning: accessing hidden changesets for write "
"operation: %s\n") % revstr)
# we have to use new filtername to separate branch/tags cache until we can
# disbale these cache when revisions are dynamically pinned.
return repo.filtered('visible-hidden', revs)
def _getrevsfromsymbols(repo, symbols):
"""parse the list of symbols and returns a set of revision numbers of hidden
changesets present in symbols"""
revs = set()
unfi = repo.unfiltered()
unficl = unfi.changelog
cl = repo.changelog
tiprev = len(unficl)
pmatch = unficl._partialmatch
allowrevnums = repo.ui.configbool('experimental', 'directaccess.revnums')
for s in symbols:
try:
n = int(s)
if n <= tiprev:
if not allowrevnums:
continue
else:
if n not in cl:
revs.add(n)
continue
except ValueError:
pass
try:
s = pmatch(s)
except error.LookupError:
s = None
if s is not None:
rev = unficl.rev(s)
if rev not in cl:
revs.add(rev)
return revs