Add import --exact.
When this option is set, import will apply the patch (which must
be generated by export) to the parents specified in the patch,
and check that the node produced by the patch matches the node
ID in the patch.
# changelog.py - changelog class 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 revlog import *
from i18n import _
import os, time, util
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 == _string_unescape(res)
True
"""
# subset of the string_escape codec
text = text.replace('\\', '\\\\').replace('\n', '\\n').replace('\r', '\\r')
return text.replace('\0', '\\0')
def _string_unescape(text):
return text.decode('string_escape')
class changelog(revlog):
def __init__(self, opener, defversion=REVLOGV0):
revlog.__init__(self, opener, "00changelog.i", "00changelog.d",
defversion)
def decode_extra(self, text):
extra = {}
for l in text.split('\0'):
if not l:
continue
k, v = _string_unescape(l).split(':', 1)
extra[k] = v
return extra
def encode_extra(self, d):
items = [_string_escape(":".join(t)) for t in d.iteritems()]
return "\0".join(items)
def extract(self, text):
"""
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
"""
if not text:
return (nullid, "", (0, 0), [], "", {'branch': 'default'})
last = text.index("\n\n")
desc = util.tolocal(text[last + 2:])
l = text[:last].split('\n')
manifest = bin(l[0])
user = util.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:
timezone = 0
extra = {}
else:
time, timezone, extra = extra_data
time, timezone = float(time), int(timezone)
extra = self.decode_extra(extra)
if not extra.get('branch'):
extra['branch'] = 'default'
files = l[3:]
return (manifest, user, (time, timezone), files, desc, extra)
def read(self, node):
return self.extract(self.revision(node))
def add(self, manifest, list, desc, transaction, p1=None, p2=None,
user=None, date=None, extra={}):
user, desc = util.fromlocal(user), util.fromlocal(desc)
if date:
parseddate = "%d %d" % util.parsedate(date)
else:
parseddate = "%d %d" % util.makedate()
if extra and extra.get("branch") in ("default", ""):
del extra["branch"]
if extra:
extra = self.encode_extra(extra)
parseddate = "%s %s" % (parseddate, extra)
list.sort()
l = [hex(manifest), user, parseddate] + list + ["", desc]
text = "\n".join(l)
return self.addrevision(text, transaction, self.count(), p1, p2)