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# dirstate.py - working directory tracking for mercurial
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#
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# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from node import nullid
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from i18n import _
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import scmutil, util, ignore, osutil, parsers, encoding
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import struct, os, stat, errno
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import cStringIO
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_format = ">cllll"
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propertycache = util.propertycache
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def _finddirs(path):
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pos = path.rfind('/')
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while pos != -1:
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yield path[:pos]
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pos = path.rfind('/', 0, pos)
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def _incdirs(dirs, path):
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for base in _finddirs(path):
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if base in dirs:
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dirs[base] += 1
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return
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dirs[base] = 1
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def _decdirs(dirs, path):
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for base in _finddirs(path):
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if dirs[base] > 1:
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dirs[base] -= 1
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return
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del dirs[base]
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class dirstate(object):
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def __init__(self, opener, ui, root, validate):
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'''Create a new dirstate object.
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opener is an open()-like callable that can be used to open the
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dirstate file; root is the root of the directory tracked by
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the dirstate.
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'''
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self._opener = opener
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self._validate = validate
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self._root = root
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self._rootdir = os.path.join(root, '')
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self._dirty = False
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self._dirtypl = False
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self._lastnormaltime = None
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self._ui = ui
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@propertycache
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def _map(self):
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'''Return the dirstate contents as a map from filename to
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(state, mode, size, time).'''
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self._read()
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return self._map
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@propertycache
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def _copymap(self):
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self._read()
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return self._copymap
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@propertycache
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def _normroot(self):
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return util.normcase(self._root)
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@propertycache
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def _foldmap(self):
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f = {}
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for name in self._map:
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f[util.normcase(name)] = name
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f['.'] = '.' # prevents useless util.fspath() invocation
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return f
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@propertycache
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def _branch(self):
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try:
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return self._opener.read("branch").strip() or "default"
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except IOError:
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return "default"
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@propertycache
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def _pl(self):
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try:
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fp = self._opener("dirstate")
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st = fp.read(40)
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fp.close()
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l = len(st)
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if l == 40:
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return st[:20], st[20:40]
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elif l > 0 and l < 40:
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raise util.Abort(_('working directory state appears damaged!'))
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except IOError, err:
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if err.errno != errno.ENOENT:
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raise
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return [nullid, nullid]
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@propertycache
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def _dirs(self):
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dirs = {}
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for f, s in self._map.iteritems():
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if s[0] != 'r':
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_incdirs(dirs, f)
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return dirs
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@propertycache
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def _ignore(self):
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files = [self._join('.hgignore')]
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for name, path in self._ui.configitems("ui"):
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if name == 'ignore' or name.startswith('ignore.'):
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files.append(util.expandpath(path))
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return ignore.ignore(self._root, files, self._ui.warn)
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@propertycache
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def _slash(self):
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return self._ui.configbool('ui', 'slash') and os.sep != '/'
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@propertycache
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def _checklink(self):
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return util.checklink(self._root)
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@propertycache
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def _checkexec(self):
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return util.checkexec(self._root)
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@propertycache
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def _checkcase(self):
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return not util.checkcase(self._join('.hg'))
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def _join(self, f):
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# much faster than os.path.join()
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# it's safe because f is always a relative path
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return self._rootdir + f
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def flagfunc(self, buildfallback):
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if self._checklink and self._checkexec:
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def f(x):
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p = self._join(x)
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if os.path.islink(p):
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return 'l'
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if util.isexec(p):
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return 'x'
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return ''
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return f
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fallback = buildfallback()
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if self._checklink:
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def f(x):
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if os.path.islink(self._join(x)):
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return 'l'
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if 'x' in fallback(x):
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return 'x'
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return ''
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return f
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if self._checkexec:
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def f(x):
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if 'l' in fallback(x):
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return 'l'
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if util.isexec(self._join(x)):
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return 'x'
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return ''
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return f
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else:
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return fallback
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def getcwd(self):
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cwd = os.getcwd()
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if cwd == self._root:
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return ''
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# self._root ends with a path separator if self._root is '/' or 'C:\'
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rootsep = self._root
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if not util.endswithsep(rootsep):
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rootsep += os.sep
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if cwd.startswith(rootsep):
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return cwd[len(rootsep):]
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else:
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# we're outside the repo. return an absolute path.
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return cwd
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def pathto(self, f, cwd=None):
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if cwd is None:
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cwd = self.getcwd()
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path = util.pathto(self._root, cwd, f)
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if self._slash:
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return util.normpath(path)
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return path
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def __getitem__(self, key):
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'''Return the current state of key (a filename) in the dirstate.
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States are:
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n normal
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m needs merging
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r marked for removal
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a marked for addition
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? not tracked
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'''
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return self._map.get(key, ("?",))[0]
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def __contains__(self, key):
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return key in self._map
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def __iter__(self):
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for x in sorted(self._map):
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yield x
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def parents(self):
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return [self._validate(p) for p in self._pl]
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def p1(self):
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return self._validate(self._pl[0])
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def p2(self):
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return self._validate(self._pl[1])
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def branch(self):
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return encoding.tolocal(self._branch)
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def setparents(self, p1, p2=nullid):
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self._dirty = self._dirtypl = True
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self._pl = p1, p2
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def setbranch(self, branch):
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if branch in ['tip', '.', 'null']:
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raise util.Abort(_('the name \'%s\' is reserved') % branch)
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self._branch = encoding.fromlocal(branch)
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self._opener.write("branch", self._branch + '\n')
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def _read(self):
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self._map = {}
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self._copymap = {}
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try:
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st = self._opener.read("dirstate")
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except IOError, err:
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if err.errno != errno.ENOENT:
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raise
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return
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if not st:
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return
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p = parsers.parse_dirstate(self._map, self._copymap, st)
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if not self._dirtypl:
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self._pl = p
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def invalidate(self):
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for a in ("_map", "_copymap", "_foldmap", "_branch", "_pl", "_dirs",
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"_ignore"):
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if a in self.__dict__:
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delattr(self, a)
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self._lastnormaltime = None
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self._dirty = False
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def copy(self, source, dest):
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"""Mark dest as a copy of source. Unmark dest if source is None."""
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if source == dest:
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return
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self._dirty = True
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if source is not None:
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self._copymap[dest] = source
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elif dest in self._copymap:
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del self._copymap[dest]
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def copied(self, file):
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return self._copymap.get(file, None)
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def copies(self):
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return self._copymap
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def _droppath(self, f):
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if self[f] not in "?r" and "_dirs" in self.__dict__:
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_decdirs(self._dirs, f)
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def _addpath(self, f, check=False):
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oldstate = self[f]
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if check or oldstate == "r":
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scmutil.checkfilename(f)
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if f in self._dirs:
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raise util.Abort(_('directory %r already in dirstate') % f)
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# shadows
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for d in _finddirs(f):
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if d in self._dirs:
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break
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if d in self._map and self[d] != 'r':
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raise util.Abort(
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_('file %r in dirstate clashes with %r') % (d, f))
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if oldstate in "?r" and "_dirs" in self.__dict__:
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_incdirs(self._dirs, f)
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def normal(self, f):
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'''Mark a file normal and clean.'''
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self._dirty = True
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self._addpath(f)
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s = os.lstat(self._join(f))
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mtime = int(s.st_mtime)
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self._map[f] = ('n', s.st_mode, s.st_size, mtime)
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if f in self._copymap:
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del self._copymap[f]
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if mtime > self._lastnormaltime:
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# Remember the most recent modification timeslot for status(),
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# to make sure we won't miss future size-preserving file content
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# modifications that happen within the same timeslot.
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self._lastnormaltime = mtime
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def normallookup(self, f):
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'''Mark a file normal, but possibly dirty.'''
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if self._pl[1] != nullid and f in self._map:
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# if there is a merge going on and the file was either
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# in state 'm' (-1) or coming from other parent (-2) before
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# being removed, restore that state.
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entry = self._map[f]
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if entry[0] == 'r' and entry[2] in (-1, -2):
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source = self._copymap.get(f)
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if entry[2] == -1:
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self.merge(f)
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elif entry[2] == -2:
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self.otherparent(f)
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if source:
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self.copy(source, f)
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return
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if entry[0] == 'm' or entry[0] == 'n' and entry[2] == -2:
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return
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self._dirty = True
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self._addpath(f)
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self._map[f] = ('n', 0, -1, -1)
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if f in self._copymap:
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del self._copymap[f]
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def otherparent(self, f):
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'''Mark as coming from the other parent, always dirty.'''
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if self._pl[1] == nullid:
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raise util.Abort(_("setting %r to other parent "
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"only allowed in merges") % f)
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self._dirty = True
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self._addpath(f)
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self._map[f] = ('n', 0, -2, -1)
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if f in self._copymap:
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del self._copymap[f]
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def add(self, f):
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'''Mark a file added.'''
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self._dirty = True
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self._addpath(f, True)
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self._map[f] = ('a', 0, -1, -1)
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if f in self._copymap:
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del self._copymap[f]
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def remove(self, f):
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'''Mark a file removed.'''
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self._dirty = True
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self._droppath(f)
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size = 0
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if self._pl[1] != nullid and f in self._map:
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# backup the previous state
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entry = self._map[f]
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if entry[0] == 'm': # merge
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size = -1
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elif entry[0] == 'n' and entry[2] == -2: # other parent
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size = -2
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self._map[f] = ('r', 0, size, 0)
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if size == 0 and f in self._copymap:
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del self._copymap[f]
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def merge(self, f):
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'''Mark a file merged.'''
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self._dirty = True
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s = os.lstat(self._join(f))
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self._addpath(f)
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self._map[f] = ('m', s.st_mode, s.st_size, int(s.st_mtime))
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if f in self._copymap:
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del self._copymap[f]
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def drop(self, f):
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'''Drop a file from the dirstate'''
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if f in self._map:
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self._dirty = True
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self._droppath(f)
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del self._map[f]
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def _normalize(self, path, isknown):
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normed = util.normcase(path)
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folded = self._foldmap.get(normed, None)
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if folded is None:
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if isknown or not os.path.lexists(os.path.join(self._root, path)):
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folded = path
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else:
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folded = self._foldmap.setdefault(normed,
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util.fspath(normed, self._normroot))
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return folded
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def normalize(self, path, isknown=False):
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'''
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normalize the case of a pathname when on a casefolding filesystem
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isknown specifies whether the filename came from walking the
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disk, to avoid extra filesystem access
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The normalized case is determined based on the following precedence:
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- version of name already stored in the dirstate
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- version of name stored on disk
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- version provided via command arguments
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'''
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if self._checkcase:
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return self._normalize(path, isknown)
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return path
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def clear(self):
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self._map = {}
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if "_dirs" in self.__dict__:
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delattr(self, "_dirs")
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self._copymap = {}
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self._pl = [nullid, nullid]
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self._lastnormaltime = None
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self._dirty = True
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def rebuild(self, parent, files):
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self.clear()
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for f in files:
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if 'x' in files.flags(f):
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self._map[f] = ('n', 0777, -1, 0)
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else:
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self._map[f] = ('n', 0666, -1, 0)
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self._pl = (parent, nullid)
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self._dirty = True
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def write(self):
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if not self._dirty:
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return
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st = self._opener("dirstate", "w", atomictemp=True)
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# use the modification time of the newly created temporary file as the
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# filesystem's notion of 'now'
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now = int(util.fstat(st).st_mtime)
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cs = cStringIO.StringIO()
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copymap = self._copymap
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pack = struct.pack
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write = cs.write
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write("".join(self._pl))
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for f, e in self._map.iteritems():
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if e[0] == 'n' and e[3] == now:
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# The file was last modified "simultaneously" with the current
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# write to dirstate (i.e. within the same second for file-
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# systems with a granularity of 1 sec). This commonly happens
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# for at least a couple of files on 'update'.
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# The user could change the file without changing its size
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# within the same second. Invalidate the file's stat data in
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|
# 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)
|
|
|
|
