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# Copyright (C) 2006 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
"""Server-side branch related request implmentations."""
from bzrlib import errors
from bzrlib.bzrdir import BzrDir
from bzrlib.revision import NULL_REVISION
from bzrlib.smart.request import SmartServerRequest, SmartServerResponse
class SmartServerBranchRequest(SmartServerRequest):
"""Base class for handling common branch request logic."""
def do(self, path, *args):
"""Execute a request for a branch at path.
If the branch is a branch reference, NotBranchError is raised.
"""
transport = self._backing_transport.clone(path)
bzrdir = BzrDir.open_from_transport(transport)
if bzrdir.get_branch_reference() is not None:
raise errors.NotBranchError(transport.base)
branch = bzrdir.open_branch()
return self.do_with_branch(branch, *args)
class SmartServerBranchGetConfigFile(SmartServerBranchRequest):
def do_with_branch(self, branch):
"""Return the content of branch.control_files.get('branch.conf').
The body is not utf8 decoded - its the literal bytestream from disk.
"""
try:
content = branch.control_files.get('branch.conf').read()
except errors.NoSuchFile:
content = ''
return SmartServerResponse( ('ok', ), content)
class SmartServerRequestRevisionHistory(SmartServerBranchRequest):
def do_with_branch(self, branch):
"""Get the revision history for the branch.
The revision list is returned as the body content,
with each revision utf8 encoded and \x00 joined.
"""
return SmartServerResponse(('ok', ),
('\x00'.join(branch.revision_history())).encode('utf8'))
class SmartServerBranchRequestLastRevisionInfo(SmartServerBranchRequest):
def do_with_branch(self, branch):
"""Return branch.last_revision_info().
The revno is encoded in decimal, the revision_id is encoded as utf8.
"""
revno, last_revision = branch.last_revision_info()
if last_revision == NULL_REVISION:
last_revision = ''
return SmartServerResponse(
('ok', str(revno), last_revision.encode('utf8')))
class SmartServerBranchRequestSetLastRevision(SmartServerBranchRequest):
def do_with_branch(self, branch, new_last_revision_id):
unicode_new_last_revision_id = new_last_revision_id.decode('utf-8') # XXX test
if new_last_revision_id == '':
branch.set_revision_history([])
else:
if not branch.repository.has_revision(unicode_new_last_revision_id):
return SmartServerResponse(
('NoSuchRevision', new_last_revision_id))
branch.generate_revision_history(unicode_new_last_revision_id)
return SmartServerResponse(('ok',))
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