Mercurial > hg
view mercurial/dirstate.py @ 15711:c51c9dc13a58
cygwin: add cygwin specific normcase logic
in cygwin environment, mount point part of path is treated as case
sensitive, even though underlying NTFS is case insensitive.
this patch preserves mount point part of specified path, only if it is
absolute one.
there is no easy way to get list of current mount points from python
program, other than to execute "mount" external command, because
cygwin does not store current mount points into Unix/Linux like
/etc/XXXtab file.
so, this patch introduces cygwinmountpoints variable to list mount
points to be preserved case.
this allows some other extensions to customize mount point
configuration.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Fri, 16 Dec 2011 21:21:08 +0900 |
parents | d6c19cfa03ce |
children | a814f8fcc65a e43c140eb08f |
line wrap: on
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# dirstate.py - working directory tracking for mercurial # # Copyright 2005-2007 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 from i18n import _ import scmutil, util, ignore, osutil, parsers, encoding import struct, os, stat, errno import cStringIO _format = ">cllll" propertycache = util.propertycache def _finddirs(path): pos = path.rfind('/') while pos != -1: yield path[:pos] pos = path.rfind('/', 0, pos) def _incdirs(dirs, path): for base in _finddirs(path): if base in dirs: dirs[base] += 1 return dirs[base] = 1 def _decdirs(dirs, path): for base in _finddirs(path): if dirs[base] > 1: dirs[base] -= 1 return del dirs[base] class dirstate(object): def __init__(self, opener, ui, root, validate): '''Create a new dirstate object. opener is an open()-like callable that can be used to open the dirstate file; root is the root of the directory tracked by the dirstate. ''' self._opener = opener self._validate = validate self._root = root self._rootdir = os.path.join(root, '') self._dirty = False self._dirtypl = False self._lastnormaltime = None self._ui = ui @propertycache def _map(self): '''Return the dirstate contents as a map from filename to (state, mode, size, time).''' self._read() return self._map @propertycache def _copymap(self): self._read() return self._copymap @propertycache def _normroot(self): return util.normcase(self._root) @propertycache def _foldmap(self): f = {} for name in self._map: f[util.normcase(name)] = name f['.'] = '.' # prevents useless util.fspath() invocation return f @propertycache def _branch(self): try: return self._opener.read("branch").strip() or "default" except IOError: return "default" @propertycache def _pl(self): try: fp = self._opener("dirstate") st = fp.read(40) fp.close() l = len(st) if l == 40: return st[:20], st[20:40] elif l > 0 and l < 40: raise util.Abort(_('working directory state appears damaged!')) except IOError, err: if err.errno != errno.ENOENT: raise return [nullid, nullid] @propertycache def _dirs(self): dirs = {} for f, s in self._map.iteritems(): if s[0] != 'r': _incdirs(dirs, f) return dirs @propertycache def _ignore(self): files = [self._join('.hgignore')] for name, path in self._ui.configitems("ui"): if name == 'ignore' or name.startswith('ignore.'): files.append(util.expandpath(path)) return ignore.ignore(self._root, files, self._ui.warn) @propertycache def _slash(self): return self._ui.configbool('ui', 'slash') and os.sep != '/' @propertycache def _checklink(self): return util.checklink(self._root) @propertycache def _checkexec(self): return util.checkexec(self._root) @propertycache def _checkcase(self): return not util.checkcase(self._join('.hg')) def _join(self, f): # much faster than os.path.join() # it's safe because f is always a relative path return self._rootdir + f def flagfunc(self, buildfallback): if self._checklink and self._checkexec: def f(x): p = self._join(x) if os.path.islink(p): return 'l' if util.isexec(p): return 'x' return '' return f fallback = buildfallback() if self._checklink: def f(x): if os.path.islink(self._join(x)): return 'l' if 'x' in fallback(x): return 'x' return '' return f if self._checkexec: def f(x): if 'l' in fallback(x): return 'l' if util.isexec(self._join(x)): return 'x' return '' return f else: return fallback def getcwd(self): cwd = os.getcwd() if cwd == self._root: return '' # self._root ends with a path separator if self._root is '/' or 'C:\' rootsep = self._root if not util.endswithsep(rootsep): rootsep += os.sep if cwd.startswith(rootsep): return cwd[len(rootsep):] else: # we're outside the repo. return an absolute path. return cwd def pathto(self, f, cwd=None): if cwd is None: cwd = self.getcwd() path = util.pathto(self._root, cwd, f) if self._slash: return util.normpath(path) return path def __getitem__(self, key): '''Return the current state of key (a filename) in the dirstate. States are: n normal m needs merging r marked for removal a marked for addition ? not tracked ''' return self._map.get(key, ("?",))[0] def __contains__(self, key): return key in self._map def __iter__(self): for x in sorted(self._map): yield x def parents(self): return [self._validate(p) for p in self._pl] def p1(self): return self._validate(self._pl[0]) def p2(self): return self._validate(self._pl[1]) def branch(self): return encoding.tolocal(self._branch) def setparents(self, p1, p2=nullid): self._dirty = self._dirtypl = True self._pl = p1, p2 def setbranch(self, branch): if branch in ['tip', '.', 'null']: raise util.Abort(_('the name \'%s\' is reserved') % branch) self._branch = encoding.fromlocal(branch) self._opener.write("branch", self._branch + '\n') def _read(self): self._map = {} self._copymap = {} try: st = self._opener.read("dirstate") except IOError, err: if err.errno != errno.ENOENT: raise return if not st: return p = parsers.parse_dirstate(self._map, self._copymap, st) if not self._dirtypl: self._pl = p def invalidate(self): for a in ("_map", "_copymap", "_foldmap", "_branch", "_pl", "_dirs", "_ignore"): if a in self.__dict__: delattr(self, a) self._lastnormaltime = None self._dirty = False def copy(self, source, dest): """Mark dest as a copy of source. Unmark dest if source is None.""" if source == dest: return self._dirty = True if source is not None: self._copymap[dest] = source elif dest in self._copymap: del self._copymap[dest] def copied(self, file): return self._copymap.get(file, None) def copies(self): return self._copymap def _droppath(self, f): if self[f] not in "?r" and "_dirs" in self.__dict__: _decdirs(self._dirs, f) def _addpath(self, f, check=False): oldstate = self[f] if check or oldstate == "r": scmutil.checkfilename(f) if f in self._dirs: raise util.Abort(_('directory %r already in dirstate') % f) # shadows for d in _finddirs(f): if d in self._dirs: break if d in self._map and self[d] != 'r': raise util.Abort( _('file %r in dirstate clashes with %r') % (d, f)) if oldstate in "?r" and "_dirs" in self.__dict__: _incdirs(self._dirs, f) def normal(self, f): '''Mark a file normal and clean.''' self._dirty = True self._addpath(f) s = os.lstat(self._join(f)) mtime = int(s.st_mtime) self._map[f] = ('n', s.st_mode, s.st_size, mtime) if f in self._copymap: del self._copymap[f] if mtime > self._lastnormaltime: # Remember the most recent modification timeslot for status(), # to make sure we won't miss future size-preserving file content # modifications that happen within the same timeslot. self._lastnormaltime = mtime def normallookup(self, f): '''Mark a file normal, but possibly dirty.''' if self._pl[1] != nullid and f in self._map: # if there is a merge going on and the file was either # in state 'm' (-1) or coming from other parent (-2) before # being removed, restore that state. entry = self._map[f] if entry[0] == 'r' and entry[2] in (-1, -2): source = self._copymap.get(f) if entry[2] == -1: self.merge(f) elif entry[2] == -2: self.otherparent(f) if source: self.copy(source, f) return if entry[0] == 'm' or entry[0] == 'n' and entry[2] == -2: return self._dirty = True self._addpath(f) self._map[f] = ('n', 0, -1, -1) if f in self._copymap: del self._copymap[f] def otherparent(self, f): '''Mark as coming from the other parent, always dirty.''' if self._pl[1] == nullid: raise util.Abort(_("setting %r to other parent " "only allowed in merges") % f) self._dirty = True self._addpath(f) self._map[f] = ('n', 0, -2, -1) if f in self._copymap: del self._copymap[f] def add(self, f): '''Mark a file added.''' self._dirty = True self._addpath(f, True) self._map[f] = ('a', 0, -1, -1) if f in self._copymap: del self._copymap[f] def remove(self, f): '''Mark a file removed.''' self._dirty = True self._droppath(f) size = 0 if self._pl[1] != nullid and f in self._map: # backup the previous state entry = self._map[f] if entry[0] == 'm': # merge size = -1 elif entry[0] == 'n' and entry[2] == -2: # other parent size = -2 self._map[f] = ('r', 0, size, 0) if size == 0 and f in self._copymap: del self._copymap[f] def merge(self, f): '''Mark a file merged.''' self._dirty = True s = os.lstat(self._join(f)) self._addpath(f) self._map[f] = ('m', s.st_mode, s.st_size, int(s.st_mtime)) if f in self._copymap: del self._copymap[f] def drop(self, f): '''Drop a file from the dirstate''' if f in self._map: self._dirty = True self._droppath(f) del self._map[f] def _normalize(self, path, isknown): normed = util.normcase(path) folded = self._foldmap.get(normed, None) if folded is None: if isknown or not os.path.lexists(os.path.join(self._root, path)): folded = path else: folded = self._foldmap.setdefault(normed, util.fspath(normed, self._normroot)) return folded def normalize(self, path, isknown=False): ''' normalize the case of a pathname when on a casefolding filesystem isknown specifies whether the filename came from walking the disk, to avoid extra filesystem access The normalized case is determined based on the following precedence: - version of name already stored in the dirstate - version of name stored on disk - version provided via command arguments ''' if self._checkcase: return self._normalize(path, isknown) return path def clear(self): self._map = {} if "_dirs" in self.__dict__: delattr(self, "_dirs") self._copymap = {} self._pl = [nullid, nullid] self._lastnormaltime = None self._dirty = True def rebuild(self, parent, files): self.clear() for f in files: if 'x' in files.flags(f): self._map[f] = ('n', 0777, -1, 0) else: self._map[f] = ('n', 0666, -1, 0) self._pl = (parent, nullid) self._dirty = True def write(self): if not self._dirty: return st = self._opener("dirstate", "w", atomictemp=True) # use the modification time of the newly created temporary file as the # filesystem's notion of 'now' now = int(util.fstat(st).st_mtime) cs = cStringIO.StringIO() copymap = self._copymap pack = struct.pack write = cs.write write("".join(self._pl)) for f, e in self._map.iteritems(): if e[0] == 'n' and e[3] == now: # The file was last modified "simultaneously" with the current # write to dirstate (i.e. within the same second for file- # systems with a granularity of 1 sec). This commonly happens # for at least a couple of files on 'update'. # The user could change the file without changing its size # within the same second. Invalidate the file's stat data in # dirstate, forcing future 'status' calls to compare the # contents of the file. This prevents mistakenly treating such # files as clean. e = (e[0], 0, -1, -1) # mark entry as 'unset' self._map[f] = e if f in copymap: f = "%s\0%s" % (f, copymap[f]) e = pack(_format, e[0], e[1], e[2], e[3], len(f)) write(e) write(f) st.write(cs.getvalue()) st.close() self._lastnormaltime = None self._dirty = self._dirtypl = False def _dirignore(self, f): if f == '.': return False if self._ignore(f): return True for p in _finddirs(f): if self._ignore(p): return True return False def walk(self, match, subrepos, unknown, ignored): ''' Walk recursively through the directory tree, finding all files matched by match. Return a dict mapping filename to stat-like object (either mercurial.osutil.stat instance or return value of os.stat()). ''' def fwarn(f, msg): self._ui.warn('%s: %s\n' % (self.pathto(f), msg)) return False def badtype(mode): kind = _('unknown') if stat.S_ISCHR(mode): kind = _('character device') elif stat.S_ISBLK(mode): kind = _('block device') elif stat.S_ISFIFO(mode): kind = _('fifo') elif stat.S_ISSOCK(mode): kind = _('socket') elif stat.S_ISDIR(mode): kind = _('directory') return _('unsupported file type (type is %s)') % kind ignore = self._ignore dirignore = self._dirignore if ignored: ignore = util.never dirignore = util.never elif not unknown: # if unknown and ignored are False, skip step 2 ignore = util.always dirignore = util.always matchfn = match.matchfn badfn = match.bad dmap = self._map normpath = util.normpath listdir = osutil.listdir lstat = os.lstat getkind = stat.S_IFMT dirkind = stat.S_IFDIR regkind = stat.S_IFREG lnkkind = stat.S_IFLNK join = self._join work = [] wadd = work.append exact = skipstep3 = False if matchfn == match.exact: # match.exact exact = True dirignore = util.always # skip step 2 elif match.files() and not match.anypats(): # match.match, no patterns skipstep3 = True if self._checkcase: normalize = self._normalize skipstep3 = False else: normalize = lambda x, y: x files = sorted(match.files()) subrepos.sort() i, j = 0, 0 while i < len(files) and j < len(subrepos): subpath = subrepos[j] + "/" if files[i] < subpath: i += 1 continue while i < len(files) and files[i].startswith(subpath): del files[i] j += 1 if not files or '.' in files: files = [''] results = dict.fromkeys(subrepos) results['.hg'] = None # step 1: find all explicit files for ff in files: nf = normalize(normpath(ff), False) if nf in results: continue try: st = lstat(join(nf)) kind = getkind(st.st_mode) if kind == dirkind: skipstep3 = False if nf in dmap: #file deleted on disk but still in dirstate results[nf] = None match.dir(nf) if not dirignore(nf): wadd(nf) elif kind == regkind or kind == lnkkind: results[nf] = st else: badfn(ff, badtype(kind)) if nf in dmap: results[nf] = None except OSError, inst: if nf in dmap: # does it exactly match a file? results[nf] = None else: # does it match a directory? prefix = nf + "/" for fn in dmap: if fn.startswith(prefix): match.dir(nf) skipstep3 = False break else: badfn(ff, inst.strerror) # step 2: visit subdirectories while work: nd = work.pop() skip = None if nd == '.': nd = '' else: skip = '.hg' try: entries = listdir(join(nd), stat=True, skip=skip) except OSError, inst: if inst.errno == errno.EACCES: fwarn(nd, inst.strerror) continue raise for f, kind, st in entries: nf = normalize(nd and (nd + "/" + f) or f, True) if nf not in results: if kind == dirkind: if not ignore(nf): match.dir(nf) wadd(nf) if nf in dmap and matchfn(nf): results[nf] = None elif kind == regkind or kind == lnkkind: if nf in dmap: if matchfn(nf): results[nf] = st elif matchfn(nf) and not ignore(nf): results[nf] = st elif nf in dmap and matchfn(nf): results[nf] = None # step 3: report unseen items in the dmap hash if not skipstep3 and not exact: visit = sorted([f for f in dmap if f not in results and matchfn(f)]) for nf, st in zip(visit, util.statfiles([join(i) for i in visit])): if not st is None and not getkind(st.st_mode) in (regkind, lnkkind): st = None results[nf] = st for s in subrepos: del results[s] del results['.hg'] return results def status(self, match, subrepos, ignored, clean, unknown): '''Determine the status of the working copy relative to the dirstate and return a tuple of lists (unsure, modified, added, removed, deleted, unknown, ignored, clean), where: unsure: files that might have been modified since the dirstate was written, but need to be read to be sure (size is the same but mtime differs) modified: files that have definitely been modified since the dirstate was written (different size or mode) added: files that have been explicitly added with hg add removed: files that have been explicitly removed with hg remove deleted: files that have been deleted through other means ("missing") unknown: files not in the dirstate that are not ignored ignored: files not in the dirstate that are ignored (by _dirignore()) clean: files that have definitely not been modified since the dirstate was written ''' listignored, listclean, listunknown = ignored, clean, unknown lookup, modified, added, unknown, ignored = [], [], [], [], [] removed, deleted, clean = [], [], [] dmap = self._map ladd = lookup.append # aka "unsure" madd = modified.append aadd = added.append uadd = unknown.append iadd = ignored.append radd = removed.append dadd = deleted.append cadd = clean.append lnkkind = stat.S_IFLNK for fn, st in self.walk(match, subrepos, listunknown, listignored).iteritems(): if fn not in dmap: if (listignored or match.exact(fn)) and self._dirignore(fn): if listignored: iadd(fn) elif listunknown: uadd(fn) continue state, mode, size, time = dmap[fn] if not st and state in "nma": dadd(fn) elif state == 'n': # The "mode & lnkkind != lnkkind or self._checklink" # lines are an expansion of "islink => checklink" # where islink means "is this a link?" and checklink # means "can we check links?". mtime = int(st.st_mtime) if (size >= 0 and (size != st.st_size or ((mode ^ st.st_mode) & 0100 and self._checkexec)) and (mode & lnkkind != lnkkind or self._checklink) or size == -2 # other parent or fn in self._copymap): madd(fn) elif (mtime != time and (mode & lnkkind != lnkkind or self._checklink)): ladd(fn) elif mtime == self._lastnormaltime: # fn may have been changed in the same timeslot without # changing its size. This can happen if we quickly do # multiple commits in a single transaction. # Force lookup, so we don't miss such a racy file change. ladd(fn) elif listclean: cadd(fn) elif state == 'm': madd(fn) elif state == 'a': aadd(fn) elif state == 'r': radd(fn) return (lookup, modified, added, removed, deleted, unknown, ignored, clean)