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#!/usr/bin/env python
# Copyright (C) 2009 Canonical Ltd
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""A script that converts a bzr merge .plan file into a .BASE file."""
import sys
def plan_lines_to_base_lines(plan_lines):
_ghost_warning = False
base_lines = []
for line in plan_lines:
action, content = line.split('|', 1)
action = action.strip()
if action in ('killed-a', 'killed-b', 'killed-both', 'unchanged'):
# If lines were removed by a or b or both, then they must have been
# in the base. if unchanged, then they are copied from the base
base_lines.append(content)
elif action in ('killed-base', 'irrelevant', 'ghost-a', 'ghost-b',
'new-a', 'new-b'):
# The first 4 are ones that are always suppressed
# the last 2 are lines that are in A or B, but *not* in BASE, so we
# ignore them
continue
else:
sys.stderr.write('Unknown action: %s\n' % (action,))
return base_lines
def plan_file_to_base_file(plan_filename):
if not plan_filename.endswith('.plan'):
sys.stderr.write('"%s" does not look like a .plan file\n'
% (plan_filename,))
return
plan_file = open(plan_filename, 'rb')
try:
plan_lines = plan_file.readlines()
finally:
plan_file.close()
base_filename = plan_filename[:-4] + 'BASE'
base_lines = plan_lines_to_base_lines(plan_lines)
f = open(base_filename, 'wb')
try:
f.writelines(base_lines)
finally:
f.close()
def main(args):
import optparse
p = optparse.OptionParser('%prog foo.plan*')
opts, args = p.parse_args(args)
if len(args) < 1:
sys.stderr.write('You must supply exactly a .plan file.\n')
return 1
for arg in args:
plan_file_to_base_file(arg)
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))
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