602 lines
18 KiB
Python
602 lines
18 KiB
Python
# 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, incorporated herein by reference.
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from node import nullid
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from i18n import _
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import util, ignore, osutil, parsers
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import struct, os, stat, errno
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import cStringIO, sys
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_unknown = ('?', 0, 0, 0)
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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):
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self._opener = opener
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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._ui = ui
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@propertycache
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def _map(self):
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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 _foldmap(self):
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f = {}
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for name in self._map:
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f[os.path.normcase(name)] = name
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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("branch").read().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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st = self._opener("dirstate").read(40)
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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: 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(os.path.expanduser(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, fallback):
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if self._checklink:
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if 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.is_exec(p):
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return 'x'
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return ''
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return f
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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.is_exec(self._join(x)):
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return 'x'
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return ''
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return f
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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: 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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''' current states:
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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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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._pl
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def branch(self):
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return 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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self._branch = branch
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self._opener("branch", "w").write(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("dirstate").read()
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except IOError, err:
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if err.errno != errno.ENOENT: 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 _ignore".split():
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if a in self.__dict__:
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delattr(self, a)
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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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"""
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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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if '\r' in f or '\n' in f:
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raise util.Abort(
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_("'\\n' and '\\r' disallowed in filenames: %r") % 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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self._map[f] = ('n', 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 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' or dirty before 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.normaldirty(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 normaldirty(self, f):
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'mark a file normal, but dirty'
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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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entry = self._map[f]
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if entry[0] == 'm':
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size = -1
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elif entry[0] == 'n' and entry[2] == -2:
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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 forget(self, f):
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'forget a file'
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self._dirty = True
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try:
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self._droppath(f)
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del self._map[f]
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except KeyError:
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self._ui.warn(_("not in dirstate: %s\n") % f)
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def _normalize(self, path, knownpath):
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norm_path = os.path.normcase(path)
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fold_path = self._foldmap.get(norm_path, None)
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if fold_path is None:
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if knownpath or not os.path.exists(os.path.join(self._root, path)):
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fold_path = path
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else:
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fold_path = self._foldmap.setdefault(norm_path,
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util.fspath(path, self._root))
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return fold_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._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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try:
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gran = int(self._ui.config('dirstate', 'granularity', 1))
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except ValueError:
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gran = 1
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limit = sys.maxint
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if gran > 0:
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limit = util.fstat(st).st_mtime - gran
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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 f in copymap:
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f = "%s\0%s" % (f, copymap[f])
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if e[3] > limit and e[0] == 'n':
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e = (e[0], 0, -1, -1)
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e = pack(_format, e[0], e[1], e[2], e[3], len(f))
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write(e)
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write(f)
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st.write(cs.getvalue())
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st.rename()
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self._dirty = self._dirtypl = False
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def _dirignore(self, f):
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if f == '.':
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return False
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if self._ignore(f):
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return True
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for p in _finddirs(f):
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if self._ignore(p):
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return True
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return False
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def walk(self, match, unknown, ignored):
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'''
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walk recursively through the directory tree, finding all files
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matched by the match function
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results are yielded in a tuple (filename, stat), where stat
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and st is the stat result if the file was found in the directory.
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'''
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def fwarn(f, msg):
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self._ui.warn('%s: %s\n' % (self.pathto(f), msg))
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return False
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def badtype(mode):
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kind = _('unknown')
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if stat.S_ISCHR(mode): kind = _('character device')
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elif stat.S_ISBLK(mode): kind = _('block device')
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elif stat.S_ISFIFO(mode): kind = _('fifo')
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elif stat.S_ISSOCK(mode): kind = _('socket')
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elif stat.S_ISDIR(mode): kind = _('directory')
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return _('unsupported file type (type is %s)') % kind
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ignore = self._ignore
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dirignore = self._dirignore
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if ignored:
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ignore = util.never
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dirignore = util.never
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elif not unknown:
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# if unknown and ignored are False, skip step 2
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ignore = util.always
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dirignore = util.always
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matchfn = match.matchfn
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badfn = match.bad
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dmap = self._map
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normpath = util.normpath
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listdir = osutil.listdir
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lstat = os.lstat
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getkind = stat.S_IFMT
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dirkind = stat.S_IFDIR
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regkind = stat.S_IFREG
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lnkkind = stat.S_IFLNK
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join = self._join
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work = []
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wadd = work.append
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if self._checkcase:
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normalize = self._normalize
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else:
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normalize = lambda x, y: x
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exact = skipstep3 = False
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if matchfn == match.exact: # match.exact
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exact = True
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dirignore = util.always # skip step 2
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elif match.files() and not match.anypats(): # match.match, no patterns
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skipstep3 = True
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files = set(match.files())
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if not files or '.' in files:
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files = ['']
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results = {'.hg': None}
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# step 1: find all explicit files
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for ff in sorted(files):
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nf = normalize(normpath(ff), False)
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if nf in results:
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continue
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try:
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st = lstat(join(nf))
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kind = getkind(st.st_mode)
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if kind == dirkind:
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skipstep3 = False
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if nf in dmap:
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#file deleted on disk but still in dirstate
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results[nf] = None
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match.dir(nf)
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if not dirignore(nf):
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wadd(nf)
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elif kind == regkind or kind == lnkkind:
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results[nf] = st
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else:
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badfn(ff, badtype(kind))
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if nf in dmap:
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results[nf] = None
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except OSError, inst:
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if nf in dmap: # does it exactly match a file?
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results[nf] = None
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else: # does it match a directory?
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prefix = nf + "/"
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for fn in dmap:
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if fn.startswith(prefix):
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match.dir(nf)
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skipstep3 = False
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break
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else:
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badfn(ff, inst.strerror)
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# step 2: visit subdirectories
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while work:
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nd = work.pop()
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skip = None
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if nd == '.':
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nd = ''
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else:
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skip = '.hg'
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try:
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entries = listdir(join(nd), stat=True, skip=skip)
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except OSError, inst:
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if inst.errno == errno.EACCES:
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fwarn(nd, inst.strerror)
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continue
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raise
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for f, kind, st in entries:
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nf = normalize(nd and (nd + "/" + f) or f, True)
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if nf not in results:
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if kind == dirkind:
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if not ignore(nf):
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match.dir(nf)
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wadd(nf)
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if nf in dmap and matchfn(nf):
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results[nf] = None
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elif kind == regkind or kind == lnkkind:
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if nf in dmap:
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if matchfn(nf):
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results[nf] = st
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elif matchfn(nf) and not ignore(nf):
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results[nf] = st
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elif nf in dmap and matchfn(nf):
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results[nf] = None
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# step 3: report unseen items in the dmap hash
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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
|
|
|
|
del results['.hg']
|
|
return results
|
|
|
|
def status(self, match, ignored, clean, unknown):
|
|
listignored, listclean, listunknown = ignored, clean, unknown
|
|
lookup, modified, added, unknown, ignored = [], [], [], [], []
|
|
removed, deleted, clean = [], [], []
|
|
|
|
dmap = self._map
|
|
ladd = lookup.append
|
|
madd = modified.append
|
|
aadd = added.append
|
|
uadd = unknown.append
|
|
iadd = ignored.append
|
|
radd = removed.append
|
|
dadd = deleted.append
|
|
cadd = clean.append
|
|
|
|
for fn, st in self.walk(match, 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':
|
|
if (size >= 0 and
|
|
(size != st.st_size
|
|
or ((mode ^ st.st_mode) & 0100 and self._checkexec))
|
|
or size == -2
|
|
or fn in self._copymap):
|
|
madd(fn)
|
|
elif time != int(st.st_mtime):
|
|
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)
|