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# Copyright (C) 2011 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
from ...controldir import ControlDir
from ...commands import Command
class cmd_repo_has_key(Command):
"""Does a repo have a key?
e.g.::
bzr repo-has-key texts FILE-ID REVISION-ID
bzr repo-has-key revisions REVISION-ID
It either prints "True" or "False", and terminates with exit code 0 or 1
respectively.
"""
hidden = True
takes_args = ['repo', 'key_parts*']
def run(self, repo, key_parts_list=None):
vf_name, key = key_parts_list[0], key_parts_list[1:]
bd = ControlDir.open(repo)
repo = bd.open_repository()
with repo.lock_read():
vf = getattr(repo, vf_name)
key = tuple(key)
if key in vf.get_parent_map([key]):
self.outf.write("True\n")
return 0
else:
self.outf.write("False\n")
return 1
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