"""
dirstate.py - working directory tracking for mercurial
Copyright 2005, 2006 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 *
from i18n import gettext as _
from demandload import *
demandload(globals(), "struct os time bisect stat strutil util re errno")
class dirstate(object):
format = ">cllll"
def __init__(self, opener, ui, root):
self.opener = opener
self.root = root
self.dirty = 0
self.ui = ui
self.map = None
self.pl = None
self.dirs = None
self.copymap = {}
self.ignorefunc = None
def wjoin(self, f):
return os.path.join(self.root, f)
def getcwd(self):
cwd = os.getcwd()
if cwd == self.root: return ''
# self.root ends with a path separator if self.root is '/' or 'C:\'
common_prefix_len = len(self.root)
if not self.root.endswith(os.sep):
common_prefix_len += 1
return cwd[common_prefix_len:]
def hgignore(self):
'''return the contents of .hgignore files as a list of patterns.
the files parsed for patterns include:
.hgignore in the repository root
any additional files specified in the [ui] section of ~/.hgrc
trailing white space is dropped.
the escape character is backslash.
comments start with #.
empty lines are skipped.
lines can be of the following formats:
syntax: regexp # defaults following lines to non-rooted regexps
syntax: glob # defaults following lines to non-rooted globs
re:pattern # non-rooted regular expression
glob:pattern # non-rooted glob
pattern # pattern of the current default type'''
syntaxes = {'re': 'relre:', 'regexp': 'relre:', 'glob': 'relglob:'}
def parselines(fp):
for line in fp:
escape = False
for i in xrange(len(line)):
if escape: escape = False
elif line[i] == '\\': escape = True
elif line[i] == '#': break
line = line[:i].rstrip()
if line: yield line
repoignore = self.wjoin('.hgignore')
files = [repoignore]
files.extend(self.ui.hgignorefiles())
pats = {}
for f in files:
try:
pats[f] = []
fp = open(f)
syntax = 'relre:'
for line in parselines(fp):
if line.startswith('syntax:'):
s = line[7:].strip()
try:
syntax = syntaxes[s]
except KeyError:
self.ui.warn(_("%s: ignoring invalid "
"syntax '%s'\n") % (f, s))
continue
pat = syntax + line
for s in syntaxes.values():
if line.startswith(s):
pat = line
break
pats[f].append(pat)
except IOError, inst:
if f != repoignore:
self.ui.warn(_("skipping unreadable ignore file"
" '%s': %s\n") % (f, inst.strerror))
return pats
def ignore(self, fn):
'''default match function used by dirstate and
localrepository. this honours the repository .hgignore file
and any other files specified in the [ui] section of .hgrc.'''
if not self.ignorefunc:
ignore = self.hgignore()
allpats = []
[allpats.extend(patlist) for patlist in ignore.values()]
if allpats:
try:
files, self.ignorefunc, anypats = (
util.matcher(self.root, inc=allpats, src='.hgignore'))
except util.Abort:
# Re-raise an exception where the src is the right file
for f, patlist in ignore.items():
files, self.ignorefunc, anypats = (
util.matcher(self.root, inc=patlist, src=f))
else:
self.ignorefunc = util.never
return self.ignorefunc(fn)
def __del__(self):
if self.dirty:
self.write()
def __getitem__(self, key):
try:
return self.map[key]
except TypeError:
self.lazyread()
return self[key]
def __contains__(self, key):
self.lazyread()
return key in self.map
def parents(self):
self.lazyread()
return self.pl
def markdirty(self):
if not self.dirty:
self.dirty = 1
def setparents(self, p1, p2=nullid):
self.lazyread()
self.markdirty()
self.pl = p1, p2
def state(self, key):
try:
return self[key][0]
except KeyError:
return "?"
def lazyread(self):
if self.map is None:
self.read()
def parse(self, st):
self.pl = [st[:20], st[20: 40]]
# deref fields so they will be local in loop
map = self.map
copymap = self.copymap
format = self.format
unpack = struct.unpack
pos = 40
e_size = struct.calcsize(format)
while pos < len(st):
newpos = pos + e_size
e = unpack(format, st[pos:newpos])
l = e[4]
pos = newpos
newpos = pos + l
f = st[pos:newpos]
if '\0' in f:
f, c = f.split('\0')
copymap[f] = c
map[f] = e[:4]
pos = newpos
def read(self):
self.map = {}
self.pl = [nullid, nullid]
try:
st = self.opener("dirstate").read()
if st:
self.parse(st)
except IOError, err:
if err.errno != errno.ENOENT: raise
def copy(self, source, dest):
self.lazyread()
self.markdirty()
self.copymap[dest] = source
def copied(self, file):
return self.copymap.get(file, None)
def copies(self):
return self.copymap
def initdirs(self):
if self.dirs is None:
self.dirs = {}
for f in self.map:
self.updatedirs(f, 1)
def updatedirs(self, path, delta):
if self.dirs is not None:
for c in strutil.findall(path, '/'):
pc = path[:c]
self.dirs.setdefault(pc, 0)
self.dirs[pc] += delta
def checkinterfering(self, files):
def prefixes(f):
for c in strutil.rfindall(f, '/'):
yield f[:c]
self.lazyread()
self.initdirs()
seendirs = {}
for f in files:
# shadows
if self.dirs.get(f):
raise util.Abort(_('directory named %r already in dirstate') %
f)
for d in prefixes(f):
if d in seendirs:
break
if d in self.map:
raise util.Abort(_('file named %r already in dirstate') %
d)
seendirs[d] = True
# disallowed
if '\r' in f or '\n' in f:
raise util.Abort(_("'\\n' and '\\r' disallowed in filenames"))
def update(self, files, state, **kw):
''' current states:
n normal
m needs merging
r marked for removal
a marked for addition'''
if not files: return
self.lazyread()
self.markdirty()
if state == "a":
self.initdirs()
self.checkinterfering(files)
for f in files:
if state == "r":
self.map[f] = ('r', 0, 0, 0)
self.updatedirs(f, -1)
else:
if state == "a":
self.updatedirs(f, 1)
s = os.lstat(self.wjoin(f))
st_size = kw.get('st_size', s.st_size)
st_mtime = kw.get('st_mtime', s.st_mtime)
self.map[f] = (state, s.st_mode, st_size, st_mtime)
if self.copymap.has_key(f):
del self.copymap[f]
def forget(self, files):
if not files: return
self.lazyread()
self.markdirty()
self.initdirs()
for f in files:
try:
del self.map[f]
self.updatedirs(f, -1)
except KeyError:
self.ui.warn(_("not in dirstate: %s!\n") % f)
pass
def clear(self):
self.map = {}
self.copymap = {}
self.dirs = None
self.markdirty()
def rebuild(self, parent, files):
self.clear()
for f in files:
if files.execf(f):
self.map[f] = ('n', 0777, -1, 0)
else:
self.map[f] = ('n', 0666, -1, 0)
self.pl = (parent, nullid)
self.markdirty()
def write(self):
if not self.dirty:
return
st = self.opener("dirstate", "w", atomic=True)
st.write("".join(self.pl))
for f, e in self.map.items():
c = self.copied(f)
if c:
f = f + "\0" + c
e = struct.pack(self.format, e[0], e[1], e[2], e[3], len(f))
st.write(e + f)
self.dirty = 0
def filterfiles(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 = self.map.keys()
b.sort()
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_type(self, f, st, verbose=False):
if stat.S_ISREG(st.st_mode):
return True
if verbose:
kind = 'unknown'
if stat.S_ISCHR(st.st_mode): kind = _('character device')
elif stat.S_ISBLK(st.st_mode): kind = _('block device')
elif stat.S_ISFIFO(st.st_mode): kind = _('fifo')
elif stat.S_ISLNK(st.st_mode): kind = _('symbolic link')
elif stat.S_ISSOCK(st.st_mode): kind = _('socket')
elif stat.S_ISDIR(st.st_mode): kind = _('directory')
self.ui.warn(_('%s: unsupported file type (type is %s)\n') % (
util.pathto(self.getcwd(), f),
kind))
return False
def walk(self, files=None, match=util.always, badmatch=None):
# filter out the stat
for src, f, st in self.statwalk(files, match, badmatch=badmatch):
yield src, f
def statwalk(self, files=None, match=util.always, ignored=False,
badmatch=None):
'''
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
'b' file was not found and matched badmatch
and st is the stat result if the file was found in the directory.
'''
self.lazyread()
# walk all files by default
if not files:
files = [self.root]
dc = self.map.copy()
else:
files = util.unique(files)
dc = self.filterfiles(files)
def imatch(file_):
if file_ not in dc and self.ignore(file_):
return False
return match(file_)
if ignored: imatch = match
# self.root may end with a path separator when self.root == '/'
common_prefix_len = len(self.root)
if not self.root.endswith(os.sep):
common_prefix_len += 1
# recursion free walker, faster than os.walk.
def findfiles(s):
work = [s]
while work:
top = work.pop()
names = os.listdir(top)
names.sort()
# nd is the top of the repository dir tree
nd = util.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.
hg = bisect.bisect_left(names, '.hg')
if hg < len(names) and names[hg] == '.hg':
if os.path.isdir(os.path.join(top, '.hg')):
continue
for f in names:
np = util.pconvert(os.path.join(nd, f))
if seen(np):
continue
p = os.path.join(top, f)
# don't trip over symlinks
st = os.lstat(p)
if stat.S_ISDIR(st.st_mode):
ds = util.pconvert(os.path.join(nd, f +'/'))
if imatch(ds):
work.append(p)
if imatch(np) and np in dc:
yield 'm', np, st
elif imatch(np):
if self.supported_type(np, st):
yield 'f', np, st
elif np in dc:
yield 'm', np, st
known = {'.hg': 1}
def seen(fn):
if fn in known: return True
known[fn] = 1
# step one, find all files that match our criteria
files.sort()
for ff in files:
nf = util.normpath(ff)
f = self.wjoin(ff)
try:
st = os.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 or not badmatch:
self.ui.warn('%s: %s\n' % (
util.pathto(self.getcwd(), ff),
inst.strerror))
elif badmatch and badmatch(ff) and imatch(nf):
yield 'b', ff, None
continue
if stat.S_ISDIR(st.st_mode):
cmp1 = (lambda x, y: cmp(x[1], y[1]))
sorted_ = [ x for x in findfiles(f) ]
sorted_.sort(cmp1)
for e in sorted_:
yield e
else:
if not seen(nf) and match(nf):
if self.supported_type(ff, st, verbose=True):
yield 'f', nf, 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
ks = dc.keys()
ks.sort()
for k in ks:
if not seen(k) and imatch(k):
yield 'm', k, None
def status(self, files=None, match=util.always, list_ignored=False,
list_clean=False):
lookup, modified, added, unknown, ignored = [], [], [], [], []
removed, deleted, clean = [], [], []
for src, fn, st in self.statwalk(files, match, ignored=list_ignored):
try:
type_, mode, size, time = self[fn]
except KeyError:
if list_ignored and self.ignore(fn):
ignored.append(fn)
else:
unknown.append(fn)
continue
if src == 'm':
nonexistent = True
if not st:
try:
st = os.lstat(self.wjoin(fn))
except OSError, inst:
if inst.errno != errno.ENOENT:
raise
st = None
# We need to re-check that it is a valid file
if st and self.supported_type(fn, st):
nonexistent = False
# XXX: what to do with file no longer present in the fs
# who are not removed in the dirstate ?
if nonexistent and type_ in "nm":
deleted.append(fn)
continue
# check the common case first
if type_ == 'n':
if not st:
st = os.lstat(self.wjoin(fn))
if size >= 0 and (size != st.st_size
or (mode ^ st.st_mode) & 0100):
modified.append(fn)
elif time != int(st.st_mtime):
lookup.append(fn)
elif list_clean:
clean.append(fn)
elif type_ == 'm':
modified.append(fn)
elif type_ == 'a':
added.append(fn)
elif type_ == 'r':
removed.append(fn)
return (lookup, modified, added, removed, deleted, unknown, ignored,
clean)