0
  9   ˆl–Ðz¾”ËmJeAàq¶ÔÅ£Íƒx‹a–ß=¿J	µ2ÛR‚ œPB¸&n2ú˜´oË t    #!/usr/bin/env python

""" hg-to-git.py - A Mercurial to GIT converter

    Copyright (C)2007 Stelian Pop <stelian@popies.net>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2, or (at your option)
    any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
"""

import os, os.path, sys
import tempfile, pickle, getopt
import re

if sys.hexversion < 0x02030000:
   # The behavior of the pickle module changed significantly in 2.3
   sys.stderr.write("hg-to-git.py: requires Python 2.3 or later.\n")
   sys.exit(1)

# Maps hg version -> git version
hgvers = {}
# List of children for each hg revision
hgchildren = {}
# List of parents for each hg revision
hgparents = {}
# Current branch for each hg revision
hgbranch = {}
# Number of new changesets converted from hg
hgnewcsets = 0

#------------------------------------------------------------------------------

def usage():

        print """\
%s: [OPTIONS] <hgprj>

options:
    -s, --gitstate=FILE: name of the state to be saved/read
                         for incrementals
    -n, --nrepack=INT:   number of changesets that will trigger
                         a repack (default=0, -1 to deactivate)
    -v, --verbose:       be verbose

required:
    hgprj:  name of the HG project to import (directory)
""" % sys.argv[0]

#------------------------------------------------------------------------------

def getgitenv(user, date):
    env = ''
    elems = re.compile('(.*?)\s+<(.*)>').match(user)
    if elems:
        env += 'export GIT_AUTHOR_NAME="%s" ;' % elems.group(1)
        env += 'export GIT_COMMITTER_NAME="%s" ;' % elems.group(1)
        env += 'export GIT_AUTHOR_EMAIL="%s" ;' % elems.group(2)
        env += 'export GIT_COMMITTER_EMAIL="%s" ;' % elems.group(2)
    else:
        env += 'export GIT_AUTHOR_NAME="%s" ;' % user
        env += 'export GIT_COMMITTER_NAME="%s" ;' % user
        env += 'export GIT_AUTHOR_EMAIL= ;'
        env += 'export GIT_COMMITTER_EMAIL= ;'

    env += 'export GIT_AUTHOR_DATE="%s" ;' % date
    env += 'export GIT_COMMITTER_DATE="%s" ;' % date
    return env

#------------------------------------------------------------------------------

state = ''
opt_nrepack = 0
verbose = False

try:
    opts, args = getopt.getopt(sys.argv[1:], 's:t:n:v', ['gitstate=', 'tempdir=', 'nrepack=', 'verbose'])
    for o, a in opts:
        if o in ('-s', '--gitstate'):
            state = a
            state = os.path.abspath(state)
        if o in ('-n', '--nrepack'):
            opt_nrepack = int(a)
        if o in ('-v', '--verbose'):
            verbose = True
    if len(args) != 1:
        raise Exception('params')
except:
    usage()
    sys.exit(1)

hgprj = args[0]
os.chdir(hgprj)

if state:
    if os.path.exists(state):
        if verbose:
            print 'State does exist, reading'
        f = open(state, 'r')
        hgvers = pickle.load(f)
    else:
        print 'State does not exist, first run'

sock = os.popen('hg tip --template "{rev}"')
tip = sock.read()
if sock.close():
    sys.exit(1)
if verbose:
    print 'tip is', tip

# Calculate the branches
if verbose:
    print 'analysing the branches...'
hgchildren["0"] = ()
hgparents["0"] = (None, None)
hgbranch["0"] = "master"
for cset in range(1, int(tip) + 1):
    hgchildren[str(cset)] = ()
    prnts = os.popen('hg log -r %d --template "{parents}"' % cset).read().strip().split(' ')
    prnts = map(lambda x: x[:x.find(':')], prnts)
    if prnts[0] != '':
        parent = prnts[0].str