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# Copyright (C) 2005 Aaron Bentley
# <aaron.bentley@utoronto.ca>
#
# 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
import sys
from subprocess import Popen, PIPE
from bzrlib.transport import get_transport
from urlparse import urlsplit, urlunsplit
def patch(branch, location, strip):
"""Apply a patch to a branch, using patch(1). URLs may be used."""
my_file = None
if location is None:
my_file = sys.stdin
else:
for prefix in ('http://', 'sftp://', 'file://'):
if not location.startswith(prefix):
continue
(scheme, loc, path, query, fragment) = urlsplit(location)
loc_start = urlunsplit((scheme, loc, '/', '', ''))
my_file = get_transport(loc_start).get(path[1:])
if my_file is None:
my_file = file(location, 'rb')
cmd = ['patch', '--directory', branch.base, '--strip', str(strip)]
child_proc = Popen(cmd, stdin=PIPE)
for line in my_file:
child_proc.stdin.write(line)
child_proc.stdin.close()
return child_proc.wait()
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