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# Copyright (C) 2009 Scott Chacon <schacon@gmail.com>
# Copyright (C) 2009 Jelmer Vernooij <jelmer@samba.org>
# 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Compatibility for hg-git."""
import urllib
def format_hg_metadata(renames, branch, extra):
"""Construct a tail with hg-git metadata.
:param renames: List of (oldpath, newpath) tuples with file renames
:param branch: Branch name
:param extra: Dictionary with extra data
:return: Tail for commit message
"""
extra_message = ''
if branch != 'default':
extra_message += "branch : " + branch + "\n"
if renames:
for oldfile, newfile in renames:
extra_message += "rename : " + oldfile + " => " + newfile + "\n"
for key, value in extra.iteritems():
if key in ('author', 'committer', 'encoding', 'message', 'branch',
'hg-git'):
continue
else:
extra_message += "extra : " + key + " : " + urllib.quote(value) + "\n"
if extra_message:
return "\n--HG--\n" + extra_message
else:
return ""
def extract_hg_metadata(message):
"""Extract Mercurial metadata from a commit message.
:param message: Commit message to extract from
:return: Tuple with original commit message, renames, branch and
extra data.
"""
split = message.split("\n--HG--\n", 1)
renames = {}
extra = {}
branch = None
if len(split) == 2:
message, meta = split
lines = meta.split("\n")
for line in lines:
if line == '':
continue
command, data = line.split(" : ", 1)
if command == 'rename':
before, after = data.split(" => ", 1)
renames[after] = before
elif command == 'branch':
branch = data
elif command == 'extra':
before, after = data.split(" : ", 1)
extra[before] = urllib.unquote(after)
else:
raise KeyError("unknown hg-git metadata command %s" % command)
return (message, renames, branch, extra)
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