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# Fedora Developer Shell
#
# 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; version 2 of the License.
#
# 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 Library 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.
#
# Authors: Yaakov M. Nemoy <ynemoy@redhat.com>
#
from __future__ import with_statement
import re
from contextlib import contextmanager
from os import getcwd
from subprocess import Popen, PIPE
from base.util import pwd, log, rm, log_file
from modules.revisioncontrol import RevisionControl
hash_re = re.compile(r'hash=\'(\w|-|.*?)\'', re.MULTILINE)
date_re = re.compile(r'date=\'(\d*?)\'', re.MULTILINE)
class Darcs(RevisionControl):
_type = 'darcs'
def load_dir(self, dir):
super(RevisionControl, self).load_dir(dir)
self.vc_url = self.cfg['vc_url']
def source_dir(self, *args):
return self.cfg['source']
@contextmanager
def src_dir(self, *args):
with src(*args):
with pwd(self.cfg['source']):
yield
@contextmanager
def src(self, *args):
if args:
old_src = self.cfg['source']
self.set_cur_to(*args)
yield
if args:
rm(self.cfg['source'])
self.cfg['source'] = old_src
self.set_current_head()
def get(self, src, tgt, *args):
with pwd(self.dir):
self.cfg['source'] = tgt
with log_file('darcs.log') as darcs_out:
p = Popen(['darcs', 'get'] + list(args) + [src, tgt],
stdout = darcs_out, stderr = darcs_out)
log.info('darcs get %s %s, please wait....' % (src, tgt))
p.wait()
self.set_current_head()
def checkout(self, tgt, url, *args):
self.cfg['vc_url'] = url
self.get(url, tgt, *args)
def set_current_head(self):
log.debug(getcwd())
with pwd(self.cfg['source']):
p = Popen(['darcs', 'changes', '--xml-output', '--last=1'],
stdout = PIPE, stderr = PIPE)
change = p.communicate()[0]
hash = hash_re.search(change).groups()[0]
date = date_re.search(change).groups()[0]
self.cfg['head'] = (hash, date)
def set_cur_to(self, *args):
cur_src_dir = self.cfg['source']
new_src_dir = cur_src_dir + '_tmp'
self.get(cur_src_dir, new_src_dir, *args)
def set_cur_to_patch(self, hash):
self.set_cur_to('--to-match', 'hash ' + hash)
def set_cur_to_tag(self, tag):
self.set_cur_to('--tag', tag)
@property
def date(self):
return self.cfg['head'][1]
@property
def hash(self):
return self.cfg['head'][0]
def set_cur_to_patch(self, hash):
self.set_cur_to('--to-match', 'hash ' + hash)
def set_cur_to_tag(self, tag):
self.set_cur_to('--tag', tag)
@contextmanager
def patch(self, hash):
with self.src('--to-match', 'hash ' + hash):
yield
@contextmanager
def tag(self, tag):
with self.src('--tag', tag):
yield
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