"""
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, incorporated herein by reference.
"""
from node import nullid
from i18n import _
import struct, os, bisect, stat, util, errno, ignore
import cStringIO, osutil, sys
_unknown = ('?', 0, 0, 0)
_format = ">cllll"
def _finddirs(path):
pos = len(path)
while 1:
pos = path.rfind('/', 0, pos)
if pos == -1:
break
yield path[:pos]
class dirstate(object):
def __init__(self, opener, ui, root):
self._opener = opener
self._root = root
self._dirty = False
self._dirtypl = False
self._ui = ui
def __getattr__(self, name):
if name == '_map':
self._read()
return self._map
elif name == '_copymap':
self._read()
return self._copymap
elif name == '_foldmap':
_foldmap = {}
for name in self._map:
norm = os.path.normcase(os.path.normpath(name))
_foldmap[norm] = name
self._foldmap = _foldmap
return self._foldmap
elif name == '_branch':
try:
self._branch = (self._opener("branch").read().strip()
or "default")
except IOError:
self._branch = "default"
return self._branch
elif name == '_pl':
self._pl = [nullid, nullid]
try:
st = self._opener("dirstate").read(40)
if len(st) == 40:
self._pl = st[:20], st[20:40]
except IOError, err:
if err.errno != errno.ENOENT: raise
return self._pl
elif name == '_dirs':
dirs = {}
for f,s in self._map.items():
if s[0] != 'r':
for base in _finddirs(f):
dirs[base] = dirs.get(base, 0) + 1
self._dirs = dirs
return self._dirs
elif name == '_ignore':
files = [self._join('.hgignore')]
for name, path in self._ui.configitems("ui"):
if name == 'ignore' or name.startswith('ignore.'):
files.append(os.path.expanduser(path))
self._ignore = ignore.ignore(self._root, files, self._ui.warn)
return self._ignore
elif name == '_slash':
self._slash = self._ui.configbool('ui', 'slash') and os.sep != '/'
return self._slash
elif name == '_checklink':
self._checklink = util.checklink(self._root)
return self._checklink
elif name == '_checkexec':
self._checkexec = util.checkexec(self._root)
return self._checkexec
elif name == '_checkcase':
self._checkcase = not util.checkcase(self._join('.hg'))
return self._checkcase
elif name == 'normalize':
if self._checkcase:
self.normalize = self._normalize
else:
self.normalize = lambda x: x
return self.normalize
else:
raise AttributeError, name
def _join(self, f):
return os.path.join(self._root, f)
def flagfunc(self, fallback):
if self._checklink:
if self._checkexec:
def f(x):
p = os.path.join(self._root, x)
if os.path.islink(p):
return 'l'
if util.is_exec(p):
return 'x'
return ''
return f
def f(x):
if os.path.islink(os.path.join(self._root, 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.is_exec(os.path.join(self._root, x)):
return 'x'
return ''
return f
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):
''' current states:
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 util.sort(self._map):
yield x
def parents(self):
return self._pl
def branch(self):
return self._branch
def setparents(self, p1, p2=nullid):
self._dirty = self._dirtypl = True
self._pl = p1, p2
def setbranch(self, branch):
self._branch = branch
self._opener("branch", "w").write(branch + '\n')
def _read(self):
self._map = {}
self._copymap = {}
if not self._dirtypl:
self._pl = [nullid, nullid]
try:
st = self._opener("dirstate").read()
except IOError, err:
if err.errno != errno.ENOENT: raise
return
if not st:
return
if not self._dirtypl:
self._pl = [st[:20], st[20: 40]]
# deref fields so they will be local in loop
dmap = self._map
copymap = self._copymap
unpack = struct.unpack
e_size = struct.calcsize(_format)
pos1 = 40
l = len(st)
# the inner loop
while pos1 < l:
pos2 = pos1 + e_size
e = unpack(">cllll", st[pos1:pos2]) # a literal here is faster
pos1 = pos2 + e[4]
f = st[pos2:pos1]
if '\0' in f:
f, c = f.split('\0')
copymap[f] = c
dmap[f] = e # we hold onto e[4] because making a subtuple is slow
def invalidate(self):
for a in "_map _copymap _foldmap _branch _pl _dirs _ignore".split():
if a in self.__dict__:
delattr(self, a)
self._dirty = False
def copy(self, source, dest):
if source == dest:
return
self._dirty = True
self._copymap[dest] = source
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__:
dirs = self._dirs
for base in _finddirs(f):
if dirs[base] == 1:
del dirs[base]
else:
dirs[base] -= 1
def _addpath(self, f, check=False):
oldstate = self[f]
if check or oldstate == "r":
if '\r' in f or '\n' in f:
raise util.Abort(
_("'\\n' and '\\r' disallowed in filenames: %r") % 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__:
dirs = self._dirs
for base in _finddirs(f):
dirs[base] = dirs.get(base, 0) + 1
def normal(self, f):
'mark a file normal and clean'
self._dirty = True
self._addpath(f)
s = os.lstat(self._join(f))
self._map[f] = ('n', s.st_mode, s.st_size, s.st_mtime, 0)
if f in self._copymap:
del self._copymap[f]
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' or dirty 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.normaldirty(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, 0)
if f in self._copymap:
del self._copymap[f]
def normaldirty(self, f):
'mark a file normal, but dirty'
self._dirty = True
self._addpath(f)
self._map[f] = ('n', 0, -2, -1, 0)
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, 0)
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:
entry = self._map[f]
if entry[0] == 'm':
size = -1
elif entry[0] == 'n' and entry[2] == -2:
size = -2
self._map[f] = ('r', 0, size, 0, 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, s.st_mtime, 0)
if f in self._copymap:
del self._copymap[f]
def forget(self, f):
'forget a file'
self._dirty = True
try:
self._droppath(f)
del self._map[f]
except KeyError:
self._ui.warn(_("not in dirstate: %s\n") % f)
def _normalize(self, path):
normpath = os.path.normcase(os.path.normpath(path))
if normpath in self._foldmap:
return self._foldmap[normpath]
elif os.path.exists(path):
self._foldmap[normpath] = util.fspath(path, self._root)
return self._foldmap[normpath]
else:
return path
def clear(self):
self._map = {}
if "_dirs" in self.__dict__:
delattr(self, "_dirs");
self._copymap = {}
self._pl = [nullid, nullid]
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, 0)
else:
self._map[f] = ('n', 0666, -1, 0, 0)
self._pl = (parent, nullid)
self._dirty = True
def write(self):
if not self._dirty:
return
st = self._opener("dirstate", "w", atomictemp=True)
try:
gran = int(self._ui.config('dirstate', 'granularity', 1))
except ValueError:
gran = 1
limit = sys.maxint
if gran > 0:
limit = util.fstat(st).st_mtime - gran
cs = cStringIO.StringIO()
copymap = self._copymap
pack = struct.pack
write = cs.write
write("".join(self._pl))
for f, e in self._map.iteritems():
if f in copymap:
f = "%s\0%s" % (f, copymap[f])
if e[3] > limit and e[0] == 'n':
e = (e[0], 0, -1, -1, 0)
e = pack(_format, e[0], e[1], e[2], e[3], len(f))
write(e)
write(f)
st.write(cs.getvalue())
st.rename()
self._dirty = self._dirtypl = False
def _filter(self, files):
ret = {}
unknown = []
for x in files:
if x == '.':
return self._map.copy()
if x not in self._map:
unknown.append(x)
else:
ret[x] = self._map[x]
if not unknown:
return ret
b = util.sort(self._map)
blen = len(b)
for x in unknown:
bs = bisect.bisect(b, "%s%s" % (x, '/'))
while bs < blen:
s = b[bs]
if len(s) > len(x) and s.startswith(x):
ret[s] = self._map[s]
else:
break
bs += 1
return ret
def _supported(self, f, mode, verbose=False):
if stat.S_ISREG(mode) or stat.S_ISLNK(mode):
return True
if verbose:
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')
self._ui.warn(_('%s: unsupported file type (type is %s)\n')
% (self.pathto(f), kind))
return 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, unknown, ignored):
'''
walk recursively through the directory tree, finding all files
matched by the match function
results are yielded in a tuple (src, filename, st), where src
is one of:
'f' the file was found in the directory tree
'm' the file was only in the dirstate and not in the tree
and st is the stat result if the file was found in the directory.
'''
def fwarn(f, msg):
self._ui.warn('%s: %s\n' % (self.pathto(ff), msg))
return False
badfn = fwarn
if hasattr(match, 'bad'):
badfn = match.bad
# walk all files by default
files = match.files()
if not files:
files = ['.']
dc = self._map.copy()
else:
files = util.unique(files)
dc = self._filter(files)
def imatch(file_):
if file_ not in dc and self._ignore(file_):
return False
return match(file_)
# TODO: don't walk unknown directories if unknown and ignored are False
ignore = self._ignore
dirignore = self._dirignore
if ignored:
imatch = match
ignore = util.never
dirignore = util.never
# self._root may end with a path separator when self._root == '/'
common_prefix_len = len(self._root)
if not util.endswithsep(self._root):
common_prefix_len += 1
normpath = util.normpath
listdir = osutil.listdir
lstat = os.lstat
bisect_left = bisect.bisect_left
isdir = os.path.isdir
pconvert = util.pconvert
join = os.path.join
s_isdir = stat.S_ISDIR
supported = self._supported
_join = self._join
known = {'.hg': 1}
# recursion free walker, faster than os.walk.
def findfiles(s):
work = [s]
wadd = work.append
found = []
add = found.append
if hasattr(match, 'dir'):
match.dir(normpath(s[common_prefix_len:]))
while work:
top = work.pop()
entries = listdir(top, stat=True)
# nd is the top of the repository dir tree
nd = normpath(top[common_prefix_len:])
if nd == '.':
nd = ''
else:
# do not recurse into a repo contained in this
# one. use bisect to find .hg directory so speed
# is good on big directory.
names = [e[0] for e in entries]
hg = bisect_left(names, '.hg')
if hg < len(names) and names[hg] == '.hg':
if isdir(join(top, '.hg')):
continue
for f, kind, st in entries:
np = pconvert(join(nd, f))
nn = self.normalize(np)
if np in known:
continue
known[nn] = 1
p = join(top, f)
# don't trip over symlinks
if kind == stat.S_IFDIR:
if not ignore(np):
wadd(p)
if hasattr(match, 'dir'):
match.dir(np)
if np in dc and match(np):
add((nn, 'm', st))
elif imatch(np):
if supported(np, st.st_mode):
add((nn, 'f', st))
elif np in dc:
add((nn, 'm', st))
return util.sort(found)
# step one, find all files that match our criteria
for ff in util.sort(files):
nf = normpath(ff)
nn = self.normalize(nf)
f = _join(ff)
try:
st = lstat(f)
except OSError, inst:
found = False
for fn in dc:
if nf == fn or (fn.startswith(nf) and fn[len(nf)] == '/'):
found = True
break
if not found:
if inst.errno != errno.ENOENT:
fwarn(ff, inst.strerror)
elif badfn(ff, inst.strerror) and imatch(nf):
yield 'f', ff, None
continue
if s_isdir(st.st_mode):
if not dirignore(nf):
for f, src, st in findfiles(f):
yield src, f, st
else:
if nn in known:
continue
known[nn] = 1
if match(nf):
if supported(ff, st.st_mode, verbose=True):
yield 'f', nn, st
elif ff in dc:
yield 'm', nf, st
# step two run through anything left in the dc hash and yield
# if we haven't already seen it
for k in util.sort(dc):
if k in known:
continue
known[k] = 1
if imatch(k):
yield 'm', k, None
def status(self, match, ignored, clean, unknown):
listignored, listclean, listunknown = ignored, clean, unknown
lookup, modified, added, unknown, ignored = [], [], [], [], []
removed, deleted, clean = [], [], []
_join = self._join
lstat = os.lstat
cmap = self._copymap
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 src, fn, st in self.walk(match, listunknown, listignored):
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, foo = dmap[fn]
if src == 'm':
nonexistent = True
if not st:
try:
st = lstat(_join(fn))
except OSError, inst:
if inst.errno not in (errno.ENOENT, errno.ENOTDIR):
raise
st = None
# We need to re-check that it is a valid file
if st and self._supported(fn, st.st_mode):
nonexistent = False
if nonexistent and state in "nma":
dadd(fn)
continue
# check the common case first
if state == 'n':
if not st:
st = lstat(_join(fn))
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)