windows: use normalized path as path to subrepo
path to subrepo is used to identify or check location of subrepo.
it should be normalized (in "/" delimiter form), because it is also
used with narrowmatcher which uses only normalized path even on
Windows environment.
this patch applies "util.pconvert()" on path to subrepo (called
"subpath") to normalize it.
for this patch, referers of below were checked.
- subrepo.state()
- subrepo.itersubrepos()
- subrepo.subrepo()
- context.sub()
- context.substate()
typical usecase is:
for subpath in ctx.substate:
sub = ctx.sub(subpath)
... ctx.substate[subpath] ....
in this case, normalization has no side effect, because keys given
from substate are used as key itself.
other cases shown below also seem to require subpath to be normalized.
- path components are joined by "/", in "commands.forget()":
for subpath in ctx.substate:
subforget[subpath + '/' + fsub] = (fsub, sub)
- normalized "file" is used to check below condition, in
"commands.revert()", "localrepository.commit()", and
"localrepository._checknested()"
file in ctx.substate
- substate.keys() is passed to dirstate.walk()/status() which use
only normalized pathes
# changelog.py - changelog class for mercurial
#
# Copyright 2005-2007 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from node import bin, hex, nullid
from i18n import _
import util, error, revlog, encoding
def _string_escape(text):
"""
>>> d = {'nl': chr(10), 'bs': chr(92), 'cr': chr(13), 'nul': chr(0)}
>>> s = "ab%(nl)scd%(bs)s%(bs)sn%(nul)sab%(cr)scd%(bs)s%(nl)s" % d
>>> s
'ab\\ncd\\\\\\\\n\\x00ab\\rcd\\\\\\n'
>>> res = _string_escape(s)
>>> s == res.decode('string_escape')
True
"""
# subset of the string_escape codec
text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r')
return text.replace('\0', '\\0')
def decodeextra(text):
"""
>>> decodeextra(encodeextra({'foo': 'bar', 'baz': chr(0) + '2'}))
{'foo': 'bar', 'baz': '\\x002'}
>>> decodeextra(encodeextra({'foo': 'bar', 'baz': chr(92) + chr(0) + '2'}))
{'foo': 'bar', 'baz': '\\\\\\x002'}
"""
extra = {}
for l in text.split('\0'):
if l:
if '\\0' in l:
# fix up \0 without getting into trouble with \\0
l = l.replace('\\\\', '\\\\\n')
l = l.replace('\\0', '\0')
l = l.replace('\n', '')
k, v = l.decode('string_escape').split(':', 1)
extra[k] = v
return extra
def encodeextra(d):
# keys must be sorted to produce a deterministic changelog entry
items = [_string_escape('%s:%s' % (k, d[k])) for k in sorted(d)]
return "\0".join(items)
class appender(object):
'''the changelog index must be updated last on disk, so we use this class
to delay writes to it'''
def __init__(self, fp, buf):
self.data = buf
self.fp = fp
self.offset = fp.tell()
self.size = util.fstat(fp).st_size
def end(self):
return self.size + len("".join(self.data))
def tell(self):
return self.offset
def flush(self):
pass
def close(self):
self.fp.close()
def seek(self, offset, whence=0):
'''virtual file offset spans real file and data'''
if whence == 0:
self.offset = offset
elif whence == 1:
self.offset += offset
elif whence == 2:
self.offset = self.end() + offset
if self.offset < self.size:
self.fp.seek(self.offset)
def read(self, count=-1):
'''only trick here is reads that span real file and data'''
ret = ""
if self.offset < self.size:
s = self.fp.read(count)
ret = s
self.offset += len(s)
if count > 0:
count -= len(s)
if count != 0:
doff = self.offset - self.size
self.data.insert(0, "".join(self.data))
del self.data[1:]
s = self.data[0][doff:doff + count]
self.offset += len(s)
ret += s
return ret
def write(self, s):
self.data.append(str(s))
self.offset += len(s)
def delayopener(opener, target, divert, buf):
def o(name, mode='r'):
if name != target:
return opener(name, mode)
if divert:
return opener(name + ".a", mode.replace('a', 'w'))
# otherwise, divert to memory
return appender(opener(name, mode), buf)
return o
class changelog(revlog.revlog):
def __init__(self, opener):
revlog.revlog.__init__(self, opener, "00changelog.i")
if self._initempty:
# changelogs don't benefit from generaldelta
self.version &= ~revlog.REVLOGGENERALDELTA
self._generaldelta = False
self._realopener = opener
self._delayed = False
self._divert = False
# hiddenrevs: revs that should be hidden by command and tools
self.hiddenrevs = set()
def delayupdate(self):
"delay visibility of index updates to other readers"
self._delayed = True
self._divert = (len(self) == 0)
self._delaybuf = []
self.opener = delayopener(self._realopener, self.indexfile,
self._divert, self._delaybuf)
def finalize(self, tr):
"finalize index updates"
self._delayed = False
self.opener = self._realopener
# move redirected index data back into place
if self._divert:
nfile = self.opener(self.indexfile + ".a")
n = nfile.name
nfile.close()
util.rename(n, n[:-2])
elif self._delaybuf:
fp = self.opener(self.indexfile, 'a')
fp.write("".join(self._delaybuf))
fp.close()
self._delaybuf = []
# split when we're done
self.checkinlinesize(tr)
def readpending(self, file):
r = revlog.revlog(self.opener, file)
self.index = r.index
self.nodemap = r.nodemap
self._chunkcache = r._chunkcache
def writepending(self):
"create a file containing the unfinalized state for pretxnchangegroup"
if self._delaybuf:
# make a temporary copy of the index
fp1 = self._realopener(self.indexfile)
fp2 = self._realopener(self.indexfile + ".a", "w")
fp2.write(fp1.read())
# add pending data
fp2.write("".join(self._delaybuf))
fp2.close()
# switch modes so finalize can simply rename
self._delaybuf = []
self._divert = True
if self._divert:
return True
return False
def checkinlinesize(self, tr, fp=None):
if not self._delayed:
revlog.revlog.checkinlinesize(self, tr, fp)
def read(self, node):
"""
format used:
nodeid\n : manifest node in ascii
user\n : user, no \n or \r allowed
time tz extra\n : date (time is int or float, timezone is int)
: extra is metadatas, encoded and separated by '\0'
: older versions ignore it
files\n\n : files modified by the cset, no \n or \r allowed
(.*) : comment (free text, ideally utf-8)
changelog v0 doesn't use extra
"""
text = self.revision(node)
if not text:
return (nullid, "", (0, 0), [], "", {'branch': 'default'})
last = text.index("\n\n")
desc = encoding.tolocal(text[last + 2:])
l = text[:last].split('\n')
manifest = bin(l[0])
user = encoding.tolocal(l[1])
extra_data = l[2].split(' ', 2)
if len(extra_data) != 3:
time = float(extra_data.pop(0))
try:
# various tools did silly things with the time zone field.
timezone = int(extra_data[0])
except ValueError:
timezone = 0
extra = {}
else:
time, timezone, extra = extra_data
time, timezone = float(time), int(timezone)
extra = decodeextra(extra)
if not extra.get('branch'):
extra['branch'] = 'default'
files = l[3:]
return (manifest, user, (time, timezone), files, desc, extra)
def add(self, manifest, files, desc, transaction, p1, p2,
user, date=None, extra=None):
# Convert to UTF-8 encoded bytestrings as the very first
# thing: calling any method on a localstr object will turn it
# into a str object and the cached UTF-8 string is thus lost.
user, desc = encoding.fromlocal(user), encoding.fromlocal(desc)
user = user.strip()
# An empty username or a username with a "\n" will make the
# revision text contain two "\n\n" sequences -> corrupt
# repository since read cannot unpack the revision.
if not user:
raise error.RevlogError(_("empty username"))
if "\n" in user:
raise error.RevlogError(_("username %s contains a newline")
% repr(user))
# strip trailing whitespace and leading and trailing empty lines
desc = '\n'.join([l.rstrip() for l in desc.splitlines()]).strip('\n')
if date:
parseddate = "%d %d" % util.parsedate(date)
else:
parseddate = "%d %d" % util.makedate()
if extra:
branch = extra.get("branch")
if branch in ("default", ""):
del extra["branch"]
elif branch in (".", "null", "tip"):
raise error.RevlogError(_('the name \'%s\' is reserved')
% branch)
if extra:
extra = encodeextra(extra)
parseddate = "%s %s" % (parseddate, extra)
l = [hex(manifest), user, parseddate] + sorted(files) + ["", desc]
text = "\n".join(l)
return self.addrevision(text, transaction, len(self), p1, p2)