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# Copyright (C) 2006, 2007, 2008 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# TODO: At some point, handle upgrades by just passing the whole request
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# across to run on the server.
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from bzrlib.branch import BranchReferenceFormat
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from bzrlib.bzrdir import BzrDir, RemoteBzrDirFormat
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.errors import (
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from bzrlib.lockable_files import LockableFiles
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from bzrlib.smart import client, vfs
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from bzrlib.revision import ensure_null, NULL_REVISION
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from bzrlib.trace import mutter, note, warning
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class _RpcHelper(object):
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"""Mixin class that helps with issuing RPCs."""
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def _call(self, method, *args, **err_context):
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return self._client.call(method, *args)
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except errors.ErrorFromSmartServer, err:
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self._translate_error(err, **err_context)
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def _call_expecting_body(self, method, *args, **err_context):
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return self._client.call_expecting_body(method, *args)
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except errors.ErrorFromSmartServer, err:
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self._translate_error(err, **err_context)
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def _call_with_body_bytes_expecting_body(self, method, args, body_bytes,
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return self._client.call_with_body_bytes_expecting_body(
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method, args, body_bytes)
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except errors.ErrorFromSmartServer, err:
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self._translate_error(err, **err_context)
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# Note: RemoteBzrDirFormat is in bzrdir.py
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class RemoteBzrDir(BzrDir, _RpcHelper):
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"""Control directory on a remote server, accessed via bzr:// or similar."""
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def __init__(self, transport, _client=None):
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"""Construct a RemoteBzrDir.
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:param _client: Private parameter for testing. Disables probing and the
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BzrDir.__init__(self, transport, RemoteBzrDirFormat())
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# this object holds a delegated bzrdir that uses file-level operations
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# to talk to the other side
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self._real_bzrdir = None
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medium = transport.get_smart_medium()
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self._client = client._SmartClient(medium)
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self._client = _client
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path = self._path_for_remote_call(self._client)
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response = self._call('BzrDir.open', path)
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if response not in [('yes',), ('no',)]:
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raise errors.UnexpectedSmartServerResponse(response)
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if response == ('no',):
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raise errors.NotBranchError(path=transport.base)
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def _ensure_real(self):
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"""Ensure that there is a _real_bzrdir set.
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Used before calls to self._real_bzrdir.
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if not self._real_bzrdir:
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self._real_bzrdir = BzrDir.open_from_transport(
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self.root_transport, _server_formats=False)
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def _translate_error(self, err, **context):
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_translate_error(err, bzrdir=self, **context)
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def cloning_metadir(self, stacked=False):
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return self._real_bzrdir.cloning_metadir(stacked)
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def create_repository(self, shared=False):
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self._real_bzrdir.create_repository(shared=shared)
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return self.open_repository()
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def destroy_repository(self):
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"""See BzrDir.destroy_repository"""
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self._real_bzrdir.destroy_repository()
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def create_branch(self):
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real_branch = self._real_bzrdir.create_branch()
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return RemoteBranch(self, self.find_repository(), real_branch)
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def destroy_branch(self):
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"""See BzrDir.destroy_branch"""
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self._real_bzrdir.destroy_branch()
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def create_workingtree(self, revision_id=None, from_branch=None):
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raise errors.NotLocalUrl(self.transport.base)
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def find_branch_format(self):
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"""Find the branch 'format' for this bzrdir.
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This might be a synthetic object for e.g. RemoteBranch and SVN.
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b = self.open_branch()
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def get_branch_reference(self):
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"""See BzrDir.get_branch_reference()."""
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path = self._path_for_remote_call(self._client)
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response = self._call('BzrDir.open_branch', path)
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if response[0] == 'ok':
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if response[1] == '':
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# branch at this location.
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# a branch reference, use the existing BranchReference logic.
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raise errors.UnexpectedSmartServerResponse(response)
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def _get_tree_branch(self):
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"""See BzrDir._get_tree_branch()."""
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return None, self.open_branch()
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def open_branch(self, _unsupported=False):
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raise NotImplementedError('unsupported flag support not implemented yet.')
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reference_url = self.get_branch_reference()
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if reference_url is None:
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# branch at this location.
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return RemoteBranch(self, self.find_repository())
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# a branch reference, use the existing BranchReference logic.
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format = BranchReferenceFormat()
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return format.open(self, _found=True, location=reference_url)
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def open_repository(self):
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path = self._path_for_remote_call(self._client)
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verb = 'BzrDir.find_repositoryV2'
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response = self._call(verb, path)
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except errors.UnknownSmartMethod:
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verb = 'BzrDir.find_repository'
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response = self._call(verb, path)
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if response[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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if verb == 'BzrDir.find_repository':
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# servers that don't support the V2 method don't support external
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response = response + ('no', )
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if not (len(response) == 5):
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raise SmartProtocolError('incorrect response length %s' % (response,))
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if response[1] == '':
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format = RemoteRepositoryFormat()
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format.rich_root_data = (response[2] == 'yes')
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format.supports_tree_reference = (response[3] == 'yes')
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# No wire format to check this yet.
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format.supports_external_lookups = (response[4] == 'yes')
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# Used to support creating a real format instance when needed.
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format._creating_bzrdir = self
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return RemoteRepository(self, format)
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raise errors.NoRepositoryPresent(self)
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def open_workingtree(self, recommend_upgrade=True):
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if self._real_bzrdir.has_workingtree():
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raise errors.NotLocalUrl(self.root_transport)
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raise errors.NoWorkingTree(self.root_transport.base)
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def _path_for_remote_call(self, client):
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"""Return the path to be used for this bzrdir in a remote call."""
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return client.remote_path_from_transport(self.root_transport)
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def get_branch_transport(self, branch_format):
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return self._real_bzrdir.get_branch_transport(branch_format)
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def get_repository_transport(self, repository_format):
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return self._real_bzrdir.get_repository_transport(repository_format)
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def get_workingtree_transport(self, workingtree_format):
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return self._real_bzrdir.get_workingtree_transport(workingtree_format)
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def can_convert_format(self):
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"""Upgrading of remote bzrdirs is not supported yet."""
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def needs_format_conversion(self, format=None):
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"""Upgrading of remote bzrdirs is not supported yet."""
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symbol_versioning.warn(symbol_versioning.deprecated_in((1, 13, 0))
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% 'needs_format_conversion(format=None)')
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def clone(self, url, revision_id=None, force_new_repo=False,
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preserve_stacking=False):
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return self._real_bzrdir.clone(url, revision_id=revision_id,
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force_new_repo=force_new_repo, preserve_stacking=preserve_stacking)
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def get_config(self):
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return self._real_bzrdir.get_config()
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class RemoteRepositoryFormat(repository.RepositoryFormat):
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"""Format for repositories accessed over a _SmartClient.
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Instances of this repository are represented by RemoteRepository
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The RemoteRepositoryFormat is parameterized during construction
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to reflect the capabilities of the real, remote format. Specifically
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the attributes rich_root_data and supports_tree_reference are set
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on a per instance basis, and are not set (and should not be) at
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_matchingbzrdir = RemoteBzrDirFormat()
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def initialize(self, a_bzrdir, shared=False):
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if not isinstance(a_bzrdir, RemoteBzrDir):
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prior_repo = self._creating_bzrdir.open_repository()
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prior_repo._ensure_real()
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return prior_repo._real_repository._format.initialize(
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a_bzrdir, shared=shared)
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return a_bzrdir.create_repository(shared=shared)
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def open(self, a_bzrdir):
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if not isinstance(a_bzrdir, RemoteBzrDir):
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raise AssertionError('%r is not a RemoteBzrDir' % (a_bzrdir,))
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return a_bzrdir.open_repository()
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def get_format_description(self):
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return 'bzr remote repository'
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def __eq__(self, other):
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return self.__class__ == other.__class__
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def check_conversion_target(self, target_format):
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if self.rich_root_data and not target_format.rich_root_data:
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raise errors.BadConversionTarget(
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'Does not support rich root data.', target_format)
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if (self.supports_tree_reference and
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not getattr(target_format, 'supports_tree_reference', False)):
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raise errors.BadConversionTarget(
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'Does not support nested trees', target_format)
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class RemoteRepository(_RpcHelper):
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"""Repository accessed over rpc.
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For the moment most operations are performed using local transport-backed
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def __init__(self, remote_bzrdir, format, real_repository=None, _client=None):
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"""Create a RemoteRepository instance.
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:param remote_bzrdir: The bzrdir hosting this repository.
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:param format: The RemoteFormat object to use.
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:param real_repository: If not None, a local implementation of the
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repository logic for the repository, usually accessing the data
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:param _client: Private testing parameter - override the smart client
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to be used by the repository.
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self._real_repository = real_repository
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self._real_repository = None
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self.bzrdir = remote_bzrdir
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self._client = remote_bzrdir._client
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self._client = _client
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self._format = format
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self._lock_mode = None
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self._lock_token = None
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self._leave_lock = False
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self._unstacked_provider = graph.CachingParentsProvider(
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get_parent_map=self._get_parent_map_rpc)
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self._unstacked_provider.disable_cache()
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# These depend on the actual remote format, so force them off for
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# maximum compatibility. XXX: In future these should depend on the
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# remote repository instance, but this is irrelevant until we perform
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# reconcile via an RPC call.
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self._reconcile_does_inventory_gc = False
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self._reconcile_fixes_text_parents = False
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self._reconcile_backsup_inventory = False
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self.base = self.bzrdir.transport.base
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# Additional places to query for data.
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self._fallback_repositories = []
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return "%s(%s)" % (self.__class__.__name__, self.base)
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def abort_write_group(self, suppress_errors=False):
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"""Complete a write group on the decorated repository.
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Smart methods peform operations in a single step so this api
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is not really applicable except as a compatibility thunk
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for older plugins that don't use e.g. the CommitBuilder
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:param suppress_errors: see Repository.abort_write_group.
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return self._real_repository.abort_write_group(
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suppress_errors=suppress_errors)
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def commit_write_group(self):
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"""Complete a write group on the decorated repository.
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Smart methods peform operations in a single step so this api
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is not really applicable except as a compatibility thunk
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for older plugins that don't use e.g. the CommitBuilder
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return self._real_repository.commit_write_group()
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def _ensure_real(self):
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"""Ensure that there is a _real_repository set.
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Used before calls to self._real_repository.
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if self._real_repository is None:
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self.bzrdir._ensure_real()
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self._set_real_repository(
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self.bzrdir._real_bzrdir.open_repository())
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def _translate_error(self, err, **context):
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self.bzrdir._translate_error(err, repository=self, **context)
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def find_text_key_references(self):
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"""Find the text key references within the repository.
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:return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
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revision_ids. Each altered file-ids has the exact revision_ids that
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altered it listed explicitly.
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:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
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to whether they were referred to by the inventory of the
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revision_id that they contain. The inventory texts from all present
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revision ids are assessed to generate this report.
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return self._real_repository.find_text_key_references()
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def _generate_text_key_index(self):
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"""Generate a new text key index for the repository.
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This is an expensive function that will take considerable time to run.
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:return: A dict mapping (file_id, revision_id) tuples to a list of
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parents, also (file_id, revision_id) tuples.
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return self._real_repository._generate_text_key_index()
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@symbol_versioning.deprecated_method(symbol_versioning.one_four)
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def get_revision_graph(self, revision_id=None):
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"""See Repository.get_revision_graph()."""
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return self._get_revision_graph(revision_id)
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def _get_revision_graph(self, revision_id):
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"""Private method for using with old (< 1.2) servers to fallback."""
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if revision_id is None:
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elif revision.is_null(revision_id):
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path = self.bzrdir._path_for_remote_call(self._client)
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response = self._call_expecting_body(
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'Repository.get_revision_graph', path, revision_id)
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response_tuple, response_handler = response
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if response_tuple[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response_tuple)
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coded = response_handler.read_body_bytes()
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# no revisions in this repository!
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lines = coded.split('\n')
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d = tuple(line.split())
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revision_graph[d[0]] = d[1:]
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return revision_graph
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def has_revision(self, revision_id):
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"""See Repository.has_revision()."""
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if revision_id == NULL_REVISION:
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# The null revision is always present.
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path = self.bzrdir._path_for_remote_call(self._client)
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response = self._call('Repository.has_revision', path, revision_id)
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if response[0] not in ('yes', 'no'):
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raise errors.UnexpectedSmartServerResponse(response)
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if response[0] == 'yes':
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for fallback_repo in self._fallback_repositories:
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if fallback_repo.has_revision(revision_id):
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def has_revisions(self, revision_ids):
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"""See Repository.has_revisions()."""
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# FIXME: This does many roundtrips, particularly when there are
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# fallback repositories. -- mbp 20080905
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for revision_id in revision_ids:
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if self.has_revision(revision_id):
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result.add(revision_id)
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def has_same_location(self, other):
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return (self.__class__ == other.__class__ and
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self.bzrdir.transport.base == other.bzrdir.transport.base)
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def get_graph(self, other_repository=None):
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"""Return the graph for this repository format"""
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parents_provider = self._make_parents_provider(other_repository)
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return graph.Graph(parents_provider)
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def gather_stats(self, revid=None, committers=None):
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"""See Repository.gather_stats()."""
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path = self.bzrdir._path_for_remote_call(self._client)
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# revid can be None to indicate no revisions, not just NULL_REVISION
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if revid is None or revision.is_null(revid):
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if committers is None or not committers:
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fmt_committers = 'no'
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fmt_committers = 'yes'
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response_tuple, response_handler = self._call_expecting_body(
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'Repository.gather_stats', path, fmt_revid, fmt_committers)
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if response_tuple[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response_tuple)
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body = response_handler.read_body_bytes()
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for line in body.split('\n'):
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key, val_text = line.split(':')
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if key in ('revisions', 'size', 'committers'):
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result[key] = int(val_text)
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elif key in ('firstrev', 'latestrev'):
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values = val_text.split(' ')[1:]
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result[key] = (float(values[0]), long(values[1]))
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def find_branches(self, using=False):
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"""See Repository.find_branches()."""
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# should be an API call to the server.
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return self._real_repository.find_branches(using=using)
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def get_physical_lock_status(self):
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"""See Repository.get_physical_lock_status()."""
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# should be an API call to the server.
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return self._real_repository.get_physical_lock_status()
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def is_in_write_group(self):
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"""Return True if there is an open write group.
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write groups are only applicable locally for the smart server..
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if self._real_repository:
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return self._real_repository.is_in_write_group()
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return self._lock_count >= 1
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"""See Repository.is_shared()."""
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path = self.bzrdir._path_for_remote_call(self._client)
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response = self._call('Repository.is_shared', path)
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if response[0] not in ('yes', 'no'):
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raise SmartProtocolError('unexpected response code %s' % (response,))
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return response[0] == 'yes'
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def is_write_locked(self):
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return self._lock_mode == 'w'
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# wrong eventually - want a local lock cache context
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if not self._lock_mode:
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self._lock_mode = 'r'
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self._unstacked_provider.enable_cache(cache_misses=False)
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if self._real_repository is not None:
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self._real_repository.lock_read()
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self._lock_count += 1
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def _remote_lock_write(self, token):
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path = self.bzrdir._path_for_remote_call(self._client)
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err_context = {'token': token}
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response = self._call('Repository.lock_write', path, token,
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if response[0] == 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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def lock_write(self, token=None, _skip_rpc=False):
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if not self._lock_mode:
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if self._lock_token is not None:
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if token != self._lock_token:
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raise errors.TokenMismatch(token, self._lock_token)
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self._lock_token = token
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self._lock_token = self._remote_lock_write(token)
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# if self._lock_token is None, then this is something like packs or
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# svn where we don't get to lock the repo, or a weave style repository
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# where we cannot lock it over the wire and attempts to do so will
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if self._real_repository is not None:
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self._real_repository.lock_write(token=self._lock_token)
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if token is not None:
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self._leave_lock = True
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self._leave_lock = False
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self._lock_mode = 'w'
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self._unstacked_provider.enable_cache(cache_misses=False)
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elif self._lock_mode == 'r':
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raise errors.ReadOnlyError(self)
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self._lock_count += 1
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return self._lock_token or None
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def leave_lock_in_place(self):
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if not self._lock_token:
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raise NotImplementedError(self.leave_lock_in_place)
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self._leave_lock = True
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def dont_leave_lock_in_place(self):
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if not self._lock_token:
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raise NotImplementedError(self.dont_leave_lock_in_place)
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self._leave_lock = False
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def _set_real_repository(self, repository):
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"""Set the _real_repository for this repository.
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:param repository: The repository to fallback to for non-hpss
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implemented operations.
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if self._real_repository is not None:
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raise AssertionError('_real_repository is already set')
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if isinstance(repository, RemoteRepository):
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raise AssertionError()
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self._real_repository = repository
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for fb in self._fallback_repositories:
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self._real_repository.add_fallback_repository(fb)
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if self._lock_mode == 'w':
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# if we are already locked, the real repository must be able to
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# acquire the lock with our token.
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self._real_repository.lock_write(self._lock_token)
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elif self._lock_mode == 'r':
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self._real_repository.lock_read()
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def start_write_group(self):
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"""Start a write group on the decorated repository.
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Smart methods peform operations in a single step so this api
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is not really applicable except as a compatibility thunk
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for older plugins that don't use e.g. the CommitBuilder
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return self._real_repository.start_write_group()
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def _unlock(self, token):
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path = self.bzrdir._path_for_remote_call(self._client)
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# with no token the remote repository is not persistently locked.
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err_context = {'token': token}
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response = self._call('Repository.unlock', path, token,
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if response == ('ok',):
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raise errors.UnexpectedSmartServerResponse(response)
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self._lock_count -= 1
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if self._lock_count > 0:
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self._unstacked_provider.disable_cache()
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old_mode = self._lock_mode
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self._lock_mode = None
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# The real repository is responsible at present for raising an
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# exception if it's in an unfinished write group. However, it
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# normally will *not* actually remove the lock from disk - that's
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# done by the server on receiving the Repository.unlock call.
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# This is just to let the _real_repository stay up to date.
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if self._real_repository is not None:
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self._real_repository.unlock()
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# The rpc-level lock should be released even if there was a
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# problem releasing the vfs-based lock.
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# Only write-locked repositories need to make a remote method
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# call to perfom the unlock.
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old_token = self._lock_token
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self._lock_token = None
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if not self._leave_lock:
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self._unlock(old_token)
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def break_lock(self):
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# should hand off to the network
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return self._real_repository.break_lock()
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def _get_tarball(self, compression):
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"""Return a TemporaryFile containing a repository tarball.
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Returns None if the server does not support sending tarballs.
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path = self.bzrdir._path_for_remote_call(self._client)
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response, protocol = self._call_expecting_body(
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'Repository.tarball', path, compression)
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except errors.UnknownSmartMethod:
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protocol.cancel_read_body()
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if response[0] == 'ok':
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# Extract the tarball and return it
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t = tempfile.NamedTemporaryFile()
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# TODO: rpc layer should read directly into it...
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t.write(protocol.read_body_bytes())
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raise errors.UnexpectedSmartServerResponse(response)
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def sprout(self, to_bzrdir, revision_id=None):
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# TODO: Option to control what format is created?
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dest_repo = self._real_repository._format.initialize(to_bzrdir,
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dest_repo.fetch(self, revision_id=revision_id)
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### These methods are just thin shims to the VFS object for now.
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def revision_tree(self, revision_id):
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return self._real_repository.revision_tree(revision_id)
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def get_serializer_format(self):
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return self._real_repository.get_serializer_format()
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def get_commit_builder(self, branch, parents, config, timestamp=None,
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timezone=None, committer=None, revprops=None,
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# FIXME: It ought to be possible to call this without immediately
719
# triggering _ensure_real. For now it's the easiest thing to do.
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real_repo = self._real_repository
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builder = real_repo.get_commit_builder(branch, parents,
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config, timestamp=timestamp, timezone=timezone,
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committer=committer, revprops=revprops, revision_id=revision_id)
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def add_fallback_repository(self, repository):
728
"""Add a repository to use for looking up data not held locally.
730
:param repository: A repository.
732
# XXX: At the moment the RemoteRepository will allow fallbacks
733
# unconditionally - however, a _real_repository will usually exist,
734
# and may raise an error if it's not accommodated by the underlying
735
# format. Eventually we should check when opening the repository
736
# whether it's willing to allow them or not.
738
# We need to accumulate additional repositories here, to pass them in
740
self._fallback_repositories.append(repository)
741
# They are also seen by the fallback repository. If it doesn't exist
742
# yet they'll be added then. This implicitly copies them.
745
def add_inventory(self, revid, inv, parents):
747
return self._real_repository.add_inventory(revid, inv, parents)
749
def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
752
return self._real_repository.add_inventory_by_delta(basis_revision_id,
753
delta, new_revision_id, parents)
755
def add_revision(self, rev_id, rev, inv=None, config=None):
757
return self._real_repository.add_revision(
758
rev_id, rev, inv=inv, config=config)
761
def get_inventory(self, revision_id):
763
return self._real_repository.get_inventory(revision_id)
765
def iter_inventories(self, revision_ids):
767
return self._real_repository.iter_inventories(revision_ids)
770
def get_revision(self, revision_id):
772
return self._real_repository.get_revision(revision_id)
774
def get_transaction(self):
776
return self._real_repository.get_transaction()
779
def clone(self, a_bzrdir, revision_id=None):
781
return self._real_repository.clone(a_bzrdir, revision_id=revision_id)
783
def make_working_trees(self):
784
"""See Repository.make_working_trees"""
786
return self._real_repository.make_working_trees()
788
def revision_ids_to_search_result(self, result_set):
789
"""Convert a set of revision ids to a graph SearchResult."""
790
result_parents = set()
791
for parents in self.get_graph().get_parent_map(
792
result_set).itervalues():
793
result_parents.update(parents)
794
included_keys = result_set.intersection(result_parents)
795
start_keys = result_set.difference(included_keys)
796
exclude_keys = result_parents.difference(result_set)
797
result = graph.SearchResult(start_keys, exclude_keys,
798
len(result_set), result_set)
802
def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
803
"""Return the revision ids that other has that this does not.
805
These are returned in topological order.
807
revision_id: only return revision ids included by revision_id.
809
return repository.InterRepository.get(
810
other, self).search_missing_revision_ids(revision_id, find_ghosts)
812
def fetch(self, source, revision_id=None, pb=None, find_ghosts=False):
813
# Not delegated to _real_repository so that InterRepository.get has a
814
# chance to find an InterRepository specialised for RemoteRepository.
815
if self.has_same_location(source):
816
# check that last_revision is in 'from' and then return a
818
if (revision_id is not None and
819
not revision.is_null(revision_id)):
820
self.get_revision(revision_id)
822
inter = repository.InterRepository.get(source, self)
824
return inter.fetch(revision_id=revision_id, pb=pb, find_ghosts=find_ghosts)
825
except NotImplementedError:
826
raise errors.IncompatibleRepositories(source, self)
828
def create_bundle(self, target, base, fileobj, format=None):
830
self._real_repository.create_bundle(target, base, fileobj, format)
833
def get_ancestry(self, revision_id, topo_sorted=True):
835
return self._real_repository.get_ancestry(revision_id, topo_sorted)
837
def fileids_altered_by_revision_ids(self, revision_ids):
839
return self._real_repository.fileids_altered_by_revision_ids(revision_ids)
841
def _get_versioned_file_checker(self, revisions, revision_versions_cache):
843
return self._real_repository._get_versioned_file_checker(
844
revisions, revision_versions_cache)
846
def iter_files_bytes(self, desired_files):
847
"""See Repository.iter_file_bytes.
850
return self._real_repository.iter_files_bytes(desired_files)
853
def _fetch_order(self):
854
"""Decorate the real repository for now.
856
In the long term getting this back from the remote repository as part
857
of open would be more efficient.
860
return self._real_repository._fetch_order
863
def _fetch_uses_deltas(self):
864
"""Decorate the real repository for now.
866
In the long term getting this back from the remote repository as part
867
of open would be more efficient.
870
return self._real_repository._fetch_uses_deltas
873
def _fetch_reconcile(self):
874
"""Decorate the real repository for now.
876
In the long term getting this back from the remote repository as part
877
of open would be more efficient.
880
return self._real_repository._fetch_reconcile
882
def get_parent_map(self, revision_ids):
883
"""See bzrlib.Graph.get_parent_map()."""
884
return self._make_parents_provider().get_parent_map(revision_ids)
886
def _get_parent_map_rpc(self, keys):
887
"""Helper for get_parent_map that performs the RPC."""
888
medium = self._client._medium
889
if medium._is_remote_before((1, 2)):
890
# We already found out that the server can't understand
891
# Repository.get_parent_map requests, so just fetch the whole
893
# XXX: Note that this will issue a deprecation warning. This is ok
894
# :- its because we're working with a deprecated server anyway, and
895
# the user will almost certainly have seen a warning about the
896
# server version already.
897
rg = self.get_revision_graph()
898
# There is an api discrepency between get_parent_map and
899
# get_revision_graph. Specifically, a "key:()" pair in
900
# get_revision_graph just means a node has no parents. For
901
# "get_parent_map" it means the node is a ghost. So fix up the
902
# graph to correct this.
903
# https://bugs.launchpad.net/bzr/+bug/214894
904
# There is one other "bug" which is that ghosts in
905
# get_revision_graph() are not returned at all. But we won't worry
906
# about that for now.
907
for node_id, parent_ids in rg.iteritems():
909
rg[node_id] = (NULL_REVISION,)
910
rg[NULL_REVISION] = ()
915
raise ValueError('get_parent_map(None) is not valid')
916
if NULL_REVISION in keys:
917
keys.discard(NULL_REVISION)
918
found_parents = {NULL_REVISION:()}
923
# TODO(Needs analysis): We could assume that the keys being requested
924
# from get_parent_map are in a breadth first search, so typically they
925
# will all be depth N from some common parent, and we don't have to
926
# have the server iterate from the root parent, but rather from the
927
# keys we're searching; and just tell the server the keyspace we
928
# already have; but this may be more traffic again.
930
# Transform self._parents_map into a search request recipe.
931
# TODO: Manage this incrementally to avoid covering the same path
932
# repeatedly. (The server will have to on each request, but the less
933
# work done the better).
934
parents_map = self._unstacked_provider.get_cached_map()
935
if parents_map is None:
936
# Repository is not locked, so there's no cache.
938
start_set = set(parents_map)
939
result_parents = set()
940
for parents in parents_map.itervalues():
941
result_parents.update(parents)
942
stop_keys = result_parents.difference(start_set)
943
included_keys = start_set.intersection(result_parents)
944
start_set.difference_update(included_keys)
945
recipe = (start_set, stop_keys, len(parents_map))
946
body = self._serialise_search_recipe(recipe)
947
path = self.bzrdir._path_for_remote_call(self._client)
949
if type(key) is not str:
951
"key %r not a plain string" % (key,))
952
verb = 'Repository.get_parent_map'
953
args = (path,) + tuple(keys)
955
response = self._call_with_body_bytes_expecting_body(
957
except errors.UnknownSmartMethod:
958
# Server does not support this method, so get the whole graph.
959
# Worse, we have to force a disconnection, because the server now
960
# doesn't realise it has a body on the wire to consume, so the
961
# only way to recover is to abandon the connection.
963
'Server is too old for fast get_parent_map, reconnecting. '
964
'(Upgrade the server to Bazaar 1.2 to avoid this)')
966
# To avoid having to disconnect repeatedly, we keep track of the
967
# fact the server doesn't understand remote methods added in 1.2.
968
medium._remember_remote_is_before((1, 2))
969
return self.get_revision_graph(None)
970
response_tuple, response_handler = response
971
if response_tuple[0] not in ['ok']:
972
response_handler.cancel_read_body()
973
raise errors.UnexpectedSmartServerResponse(response_tuple)
974
if response_tuple[0] == 'ok':
975
coded = bz2.decompress(response_handler.read_body_bytes())
979
lines = coded.split('\n')
982
d = tuple(line.split())
984
revision_graph[d[0]] = d[1:]
986
# No parents - so give the Graph result (NULL_REVISION,).
987
revision_graph[d[0]] = (NULL_REVISION,)
988
return revision_graph
991
def get_signature_text(self, revision_id):
993
return self._real_repository.get_signature_text(revision_id)
996
@symbol_versioning.deprecated_method(symbol_versioning.one_three)
997
def get_revision_graph_with_ghosts(self, revision_ids=None):
999
return self._real_repository.get_revision_graph_with_ghosts(
1000
revision_ids=revision_ids)
1003
def get_inventory_xml(self, revision_id):
1005
return self._real_repository.get_inventory_xml(revision_id)
1007
def deserialise_inventory(self, revision_id, xml):
1009
return self._real_repository.deserialise_inventory(revision_id, xml)
1011
def reconcile(self, other=None, thorough=False):
1013
return self._real_repository.reconcile(other=other, thorough=thorough)
1015
def all_revision_ids(self):
1017
return self._real_repository.all_revision_ids()
1020
def get_deltas_for_revisions(self, revisions):
1022
return self._real_repository.get_deltas_for_revisions(revisions)
1025
def get_revision_delta(self, revision_id):
1027
return self._real_repository.get_revision_delta(revision_id)
1030
def revision_trees(self, revision_ids):
1032
return self._real_repository.revision_trees(revision_ids)
1035
def get_revision_reconcile(self, revision_id):
1037
return self._real_repository.get_revision_reconcile(revision_id)
1040
def check(self, revision_ids=None):
1042
return self._real_repository.check(revision_ids=revision_ids)
1044
def copy_content_into(self, destination, revision_id=None):
1046
return self._real_repository.copy_content_into(
1047
destination, revision_id=revision_id)
1049
def _copy_repository_tarball(self, to_bzrdir, revision_id=None):
1050
# get a tarball of the remote repository, and copy from that into the
1052
from bzrlib import osutils
1054
# TODO: Maybe a progress bar while streaming the tarball?
1055
note("Copying repository content as tarball...")
1056
tar_file = self._get_tarball('bz2')
1057
if tar_file is None:
1059
destination = to_bzrdir.create_repository()
1061
tar = tarfile.open('repository', fileobj=tar_file,
1063
tmpdir = osutils.mkdtemp()
1065
_extract_tar(tar, tmpdir)
1066
tmp_bzrdir = BzrDir.open(tmpdir)
1067
tmp_repo = tmp_bzrdir.open_repository()
1068
tmp_repo.copy_content_into(destination, revision_id)
1070
osutils.rmtree(tmpdir)
1074
# TODO: Suggestion from john: using external tar is much faster than
1075
# python's tarfile library, but it may not work on windows.
1078
def inventories(self):
1079
"""Decorate the real repository for now.
1081
In the long term a full blown network facility is needed to
1082
avoid creating a real repository object locally.
1085
return self._real_repository.inventories
1089
"""Compress the data within the repository.
1091
This is not currently implemented within the smart server.
1094
return self._real_repository.pack()
1097
def revisions(self):
1098
"""Decorate the real repository for now.
1100
In the short term this should become a real object to intercept graph
1103
In the long term a full blown network facility is needed.
1106
return self._real_repository.revisions
1108
def set_make_working_trees(self, new_value):
1110
self._real_repository.set_make_working_trees(new_value)
1113
def signatures(self):
1114
"""Decorate the real repository for now.
1116
In the long term a full blown network facility is needed to avoid
1117
creating a real repository object locally.
1120
return self._real_repository.signatures
1123
def sign_revision(self, revision_id, gpg_strategy):
1125
return self._real_repository.sign_revision(revision_id, gpg_strategy)
1129
"""Decorate the real repository for now.
1131
In the long term a full blown network facility is needed to avoid
1132
creating a real repository object locally.
1135
return self._real_repository.texts
1138
def get_revisions(self, revision_ids):
1140
return self._real_repository.get_revisions(revision_ids)
1142
def supports_rich_root(self):
1144
return self._real_repository.supports_rich_root()
1146
def iter_reverse_revision_history(self, revision_id):
1148
return self._real_repository.iter_reverse_revision_history(revision_id)
1151
def _serializer(self):
1153
return self._real_repository._serializer
1155
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1157
return self._real_repository.store_revision_signature(
1158
gpg_strategy, plaintext, revision_id)
1160
def add_signature_text(self, revision_id, signature):
1162
return self._real_repository.add_signature_text(revision_id, signature)
1164
def has_signature_for_revision_id(self, revision_id):
1166
return self._real_repository.has_signature_for_revision_id(revision_id)
1168
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1170
return self._real_repository.item_keys_introduced_by(revision_ids,
1171
_files_pb=_files_pb)
1173
def revision_graph_can_have_wrong_parents(self):
1174
# The answer depends on the remote repo format.
1176
return self._real_repository.revision_graph_can_have_wrong_parents()
1178
def _find_inconsistent_revision_parents(self):
1180
return self._real_repository._find_inconsistent_revision_parents()
1182
def _check_for_inconsistent_revision_parents(self):
1184
return self._real_repository._check_for_inconsistent_revision_parents()
1186
def _make_parents_provider(self, other=None):
1187
providers = [self._unstacked_provider]
1188
if other is not None:
1189
providers.insert(0, other)
1190
providers.extend(r._make_parents_provider() for r in
1191
self._fallback_repositories)
1192
return graph._StackedParentsProvider(providers)
1194
def _serialise_search_recipe(self, recipe):
1195
"""Serialise a graph search recipe.
1197
:param recipe: A search recipe (start, stop, count).
1198
:return: Serialised bytes.
1200
start_keys = ' '.join(recipe[0])
1201
stop_keys = ' '.join(recipe[1])
1202
count = str(recipe[2])
1203
return '\n'.join((start_keys, stop_keys, count))
1206
path = self.bzrdir._path_for_remote_call(self._client)
1208
response = self._call('PackRepository.autopack', path)
1209
except errors.UnknownSmartMethod:
1211
self._real_repository._pack_collection.autopack()
1213
if self._real_repository is not None:
1214
# Reset the real repository's cache of pack names.
1215
# XXX: At some point we may be able to skip this and just rely on
1216
# the automatic retry logic to do the right thing, but for now we
1217
# err on the side of being correct rather than being optimal.
1218
self._real_repository._pack_collection.reload_pack_names()
1219
if response[0] != 'ok':
1220
raise errors.UnexpectedSmartServerResponse(response)
1223
class RemoteBranchLockableFiles(LockableFiles):
1224
"""A 'LockableFiles' implementation that talks to a smart server.
1226
This is not a public interface class.
1229
def __init__(self, bzrdir, _client):
1230
self.bzrdir = bzrdir
1231
self._client = _client
1232
self._need_find_modes = True
1233
LockableFiles.__init__(
1234
self, bzrdir.get_branch_transport(None),
1235
'lock', lockdir.LockDir)
1237
def _find_modes(self):
1238
# RemoteBranches don't let the client set the mode of control files.
1239
self._dir_mode = None
1240
self._file_mode = None
1243
class RemoteBranchFormat(branch.BranchFormat):
1246
super(RemoteBranchFormat, self).__init__()
1247
self._matchingbzrdir = RemoteBzrDirFormat()
1248
self._matchingbzrdir.set_branch_format(self)
1250
def __eq__(self, other):
1251
return (isinstance(other, RemoteBranchFormat) and
1252
self.__dict__ == other.__dict__)
1254
def get_format_description(self):
1255
return 'Remote BZR Branch'
1257
def get_format_string(self):
1258
return 'Remote BZR Branch'
1260
def open(self, a_bzrdir):
1261
return a_bzrdir.open_branch()
1263
def initialize(self, a_bzrdir):
1264
return a_bzrdir.create_branch()
1266
def supports_tags(self):
1267
# Remote branches might support tags, but we won't know until we
1268
# access the real remote branch.
1272
class RemoteBranch(branch.Branch, _RpcHelper):
1273
"""Branch stored on a server accessed by HPSS RPC.
1275
At the moment most operations are mapped down to simple file operations.
1278
def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
1280
"""Create a RemoteBranch instance.
1282
:param real_branch: An optional local implementation of the branch
1283
format, usually accessing the data via the VFS.
1284
:param _client: Private parameter for testing.
1286
# We intentionally don't call the parent class's __init__, because it
1287
# will try to assign to self.tags, which is a property in this subclass.
1288
# And the parent's __init__ doesn't do much anyway.
1289
self._revision_id_to_revno_cache = None
1290
self._revision_history_cache = None
1291
self._last_revision_info_cache = None
1292
self.bzrdir = remote_bzrdir
1293
if _client is not None:
1294
self._client = _client
1296
self._client = remote_bzrdir._client
1297
self.repository = remote_repository
1298
if real_branch is not None:
1299
self._real_branch = real_branch
1300
# Give the remote repository the matching real repo.
1301
real_repo = self._real_branch.repository
1302
if isinstance(real_repo, RemoteRepository):
1303
real_repo._ensure_real()
1304
real_repo = real_repo._real_repository
1305
self.repository._set_real_repository(real_repo)
1306
# Give the branch the remote repository to let fast-pathing happen.
1307
self._real_branch.repository = self.repository
1309
self._real_branch = None
1310
# Fill out expected attributes of branch for bzrlib api users.
1311
self._format = RemoteBranchFormat()
1312
self.base = self.bzrdir.root_transport.base
1313
self._control_files = None
1314
self._lock_mode = None
1315
self._lock_token = None
1316
self._repo_lock_token = None
1317
self._lock_count = 0
1318
self._leave_lock = False
1319
# The base class init is not called, so we duplicate this:
1320
hooks = branch.Branch.hooks['open']
1323
self._setup_stacking()
1325
def _setup_stacking(self):
1326
# configure stacking into the remote repository, by reading it from
1329
fallback_url = self.get_stacked_on_url()
1330
except (errors.NotStacked, errors.UnstackableBranchFormat,
1331
errors.UnstackableRepositoryFormat), e:
1333
# it's relative to this branch...
1334
fallback_url = urlutils.join(self.base, fallback_url)
1335
transports = [self.bzrdir.root_transport]
1336
if self._real_branch is not None:
1337
transports.append(self._real_branch._transport)
1338
stacked_on = branch.Branch.open(fallback_url,
1339
possible_transports=transports)
1340
self.repository.add_fallback_repository(stacked_on.repository)
1342
def _get_real_transport(self):
1343
# if we try vfs access, return the real branch's vfs transport
1345
return self._real_branch._transport
1347
_transport = property(_get_real_transport)
1350
return "%s(%s)" % (self.__class__.__name__, self.base)
1354
def _ensure_real(self):
1355
"""Ensure that there is a _real_branch set.
1357
Used before calls to self._real_branch.
1359
if self._real_branch is None:
1360
if not vfs.vfs_enabled():
1361
raise AssertionError('smart server vfs must be enabled '
1362
'to use vfs implementation')
1363
self.bzrdir._ensure_real()
1364
self._real_branch = self.bzrdir._real_bzrdir.open_branch()
1365
if self.repository._real_repository is None:
1366
# Give the remote repository the matching real repo.
1367
real_repo = self._real_branch.repository
1368
if isinstance(real_repo, RemoteRepository):
1369
real_repo._ensure_real()
1370
real_repo = real_repo._real_repository
1371
self.repository._set_real_repository(real_repo)
1372
# Give the real branch the remote repository to let fast-pathing
1374
self._real_branch.repository = self.repository
1375
if self._lock_mode == 'r':
1376
self._real_branch.lock_read()
1377
elif self._lock_mode == 'w':
1378
self._real_branch.lock_write(token=self._lock_token)
1380
def _translate_error(self, err, **context):
1381
self.repository._translate_error(err, branch=self, **context)
1383
def _clear_cached_state(self):
1384
super(RemoteBranch, self)._clear_cached_state()
1385
if self._real_branch is not None:
1386
self._real_branch._clear_cached_state()
1388
def _clear_cached_state_of_remote_branch_only(self):
1389
"""Like _clear_cached_state, but doesn't clear the cache of
1392
This is useful when falling back to calling a method of
1393
self._real_branch that changes state. In that case the underlying
1394
branch changes, so we need to invalidate this RemoteBranch's cache of
1395
it. However, there's no need to invalidate the _real_branch's cache
1396
too, in fact doing so might harm performance.
1398
super(RemoteBranch, self)._clear_cached_state()
1401
def control_files(self):
1402
# Defer actually creating RemoteBranchLockableFiles until its needed,
1403
# because it triggers an _ensure_real that we otherwise might not need.
1404
if self._control_files is None:
1405
self._control_files = RemoteBranchLockableFiles(
1406
self.bzrdir, self._client)
1407
return self._control_files
1409
def _get_checkout_format(self):
1411
return self._real_branch._get_checkout_format()
1413
def get_physical_lock_status(self):
1414
"""See Branch.get_physical_lock_status()."""
1415
# should be an API call to the server, as branches must be lockable.
1417
return self._real_branch.get_physical_lock_status()
1419
def get_stacked_on_url(self):
1420
"""Get the URL this branch is stacked against.
1422
:raises NotStacked: If the branch is not stacked.
1423
:raises UnstackableBranchFormat: If the branch does not support
1425
:raises UnstackableRepositoryFormat: If the repository does not support
1429
# there may not be a repository yet, so we can't use
1430
# self._translate_error, so we can't use self._call either.
1431
response = self._client.call('Branch.get_stacked_on_url',
1432
self._remote_path())
1433
except errors.ErrorFromSmartServer, err:
1434
# there may not be a repository yet, so we can't call through
1435
# its _translate_error
1436
_translate_error(err, branch=self)
1437
except errors.UnknownSmartMethod, err:
1439
return self._real_branch.get_stacked_on_url()
1440
if response[0] != 'ok':
1441
raise errors.UnexpectedSmartServerResponse(response)
1444
def lock_read(self):
1445
self.repository.lock_read()
1446
if not self._lock_mode:
1447
self._lock_mode = 'r'
1448
self._lock_count = 1
1449
if self._real_branch is not None:
1450
self._real_branch.lock_read()
1452
self._lock_count += 1
1454
def _remote_lock_write(self, token):
1456
branch_token = repo_token = ''
1458
branch_token = token
1459
repo_token = self.repository.lock_write()
1460
self.repository.unlock()
1461
err_context = {'token': token}
1462
response = self._call(
1463
'Branch.lock_write', self._remote_path(), branch_token,
1464
repo_token or '', **err_context)
1465
if response[0] != 'ok':
1466
raise errors.UnexpectedSmartServerResponse(response)
1467
ok, branch_token, repo_token = response
1468
return branch_token, repo_token
1470
def lock_write(self, token=None):
1471
if not self._lock_mode:
1472
# Lock the branch and repo in one remote call.
1473
remote_tokens = self._remote_lock_write(token)
1474
self._lock_token, self._repo_lock_token = remote_tokens
1475
if not self._lock_token:
1476
raise SmartProtocolError('Remote server did not return a token!')
1477
# Tell the self.repository object that it is locked.
1478
self.repository.lock_write(
1479
self._repo_lock_token, _skip_rpc=True)
1481
if self._real_branch is not None:
1482
self._real_branch.lock_write(token=self._lock_token)
1483
if token is not None:
1484
self._leave_lock = True
1486
self._leave_lock = False
1487
self._lock_mode = 'w'
1488
self._lock_count = 1
1489
elif self._lock_mode == 'r':
1490
raise errors.ReadOnlyTransaction
1492
if token is not None:
1493
# A token was given to lock_write, and we're relocking, so
1494
# check that the given token actually matches the one we
1496
if token != self._lock_token:
1497
raise errors.TokenMismatch(token, self._lock_token)
1498
self._lock_count += 1
1499
# Re-lock the repository too.
1500
self.repository.lock_write(self._repo_lock_token)
1501
return self._lock_token or None
1503
def _unlock(self, branch_token, repo_token):
1504
err_context = {'token': str((branch_token, repo_token))}
1505
response = self._call(
1506
'Branch.unlock', self._remote_path(), branch_token,
1507
repo_token or '', **err_context)
1508
if response == ('ok',):
1510
raise errors.UnexpectedSmartServerResponse(response)
1514
self._lock_count -= 1
1515
if not self._lock_count:
1516
self._clear_cached_state()
1517
mode = self._lock_mode
1518
self._lock_mode = None
1519
if self._real_branch is not None:
1520
if (not self._leave_lock and mode == 'w' and
1521
self._repo_lock_token):
1522
# If this RemoteBranch will remove the physical lock
1523
# for the repository, make sure the _real_branch
1524
# doesn't do it first. (Because the _real_branch's
1525
# repository is set to be the RemoteRepository.)
1526
self._real_branch.repository.leave_lock_in_place()
1527
self._real_branch.unlock()
1529
# Only write-locked branched need to make a remote method
1530
# call to perfom the unlock.
1532
if not self._lock_token:
1533
raise AssertionError('Locked, but no token!')
1534
branch_token = self._lock_token
1535
repo_token = self._repo_lock_token
1536
self._lock_token = None
1537
self._repo_lock_token = None
1538
if not self._leave_lock:
1539
self._unlock(branch_token, repo_token)
1541
self.repository.unlock()
1543
def break_lock(self):
1545
return self._real_branch.break_lock()
1547
def leave_lock_in_place(self):
1548
if not self._lock_token:
1549
raise NotImplementedError(self.leave_lock_in_place)
1550
self._leave_lock = True
1552
def dont_leave_lock_in_place(self):
1553
if not self._lock_token:
1554
raise NotImplementedError(self.dont_leave_lock_in_place)
1555
self._leave_lock = False
1557
def _last_revision_info(self):
1558
response = self._call('Branch.last_revision_info', self._remote_path())
1559
if response[0] != 'ok':
1560
raise SmartProtocolError('unexpected response code %s' % (response,))
1561
revno = int(response[1])
1562
last_revision = response[2]
1563
return (revno, last_revision)
1565
def _gen_revision_history(self):
1566
"""See Branch._gen_revision_history()."""
1567
response_tuple, response_handler = self._call_expecting_body(
1568
'Branch.revision_history', self._remote_path())
1569
if response_tuple[0] != 'ok':
1570
raise errors.UnexpectedSmartServerResponse(response_tuple)
1571
result = response_handler.read_body_bytes().split('\x00')
1576
def _remote_path(self):
1577
return self.bzrdir._path_for_remote_call(self._client)
1579
def _set_last_revision_descendant(self, revision_id, other_branch,
1580
allow_diverged=False, allow_overwrite_descendant=False):
1581
err_context = {'other_branch': other_branch}
1582
response = self._call('Branch.set_last_revision_ex',
1583
self._remote_path(), self._lock_token, self._repo_lock_token,
1584
revision_id, int(allow_diverged), int(allow_overwrite_descendant),
1586
self._clear_cached_state()
1587
if len(response) != 3 and response[0] != 'ok':
1588
raise errors.UnexpectedSmartServerResponse(response)
1589
new_revno, new_revision_id = response[1:]
1590
self._last_revision_info_cache = new_revno, new_revision_id
1591
if self._real_branch is not None:
1592
cache = new_revno, new_revision_id
1593
self._real_branch._last_revision_info_cache = cache
1595
def _set_last_revision(self, revision_id):
1596
self._clear_cached_state()
1597
response = self._call('Branch.set_last_revision',
1598
self._remote_path(), self._lock_token, self._repo_lock_token,
1600
if response != ('ok',):
1601
raise errors.UnexpectedSmartServerResponse(response)
1604
def set_revision_history(self, rev_history):
1605
# Send just the tip revision of the history; the server will generate
1606
# the full history from that. If the revision doesn't exist in this
1607
# branch, NoSuchRevision will be raised.
1608
if rev_history == []:
1611
rev_id = rev_history[-1]
1612
self._set_last_revision(rev_id)
1613
self._cache_revision_history(rev_history)
1615
def get_parent(self):
1617
return self._real_branch.get_parent()
1619
def set_parent(self, url):
1621
return self._real_branch.set_parent(url)
1623
def set_stacked_on_url(self, stacked_location):
1624
"""Set the URL this branch is stacked against.
1626
:raises UnstackableBranchFormat: If the branch does not support
1628
:raises UnstackableRepositoryFormat: If the repository does not support
1632
return self._real_branch.set_stacked_on_url(stacked_location)
1634
def sprout(self, to_bzrdir, revision_id=None):
1635
branch_format = to_bzrdir._format._branch_format
1636
if (branch_format is None or
1637
isinstance(branch_format, RemoteBranchFormat)):
1638
# The to_bzrdir specifies RemoteBranchFormat (or no format, which
1639
# implies the same thing), but RemoteBranches can't be created at
1640
# arbitrary URLs. So create a branch in the same format as
1641
# _real_branch instead.
1642
# XXX: if to_bzrdir is a RemoteBzrDir, this should perhaps do
1643
# to_bzrdir.create_branch to create a RemoteBranch after all...
1645
result = self._real_branch._format.initialize(to_bzrdir)
1646
self.copy_content_into(result, revision_id=revision_id)
1647
result.set_parent(self.bzrdir.root_transport.base)
1649
result = branch.Branch.sprout(
1650
self, to_bzrdir, revision_id=revision_id)
1654
def pull(self, source, overwrite=False, stop_revision=None,
1656
self._clear_cached_state_of_remote_branch_only()
1658
return self._real_branch.pull(
1659
source, overwrite=overwrite, stop_revision=stop_revision,
1660
_override_hook_target=self, **kwargs)
1663
def push(self, target, overwrite=False, stop_revision=None):
1665
return self._real_branch.push(
1666
target, overwrite=overwrite, stop_revision=stop_revision,
1667
_override_hook_source_branch=self)
1669
def is_locked(self):
1670
return self._lock_count >= 1
1673
def revision_id_to_revno(self, revision_id):
1675
return self._real_branch.revision_id_to_revno(revision_id)
1678
def set_last_revision_info(self, revno, revision_id):
1679
revision_id = ensure_null(revision_id)
1681
response = self._call('Branch.set_last_revision_info',
1682
self._remote_path(), self._lock_token, self._repo_lock_token,
1683
str(revno), revision_id)
1684
except errors.UnknownSmartMethod:
1686
self._clear_cached_state_of_remote_branch_only()
1687
self._real_branch.set_last_revision_info(revno, revision_id)
1688
self._last_revision_info_cache = revno, revision_id
1690
if response == ('ok',):
1691
self._clear_cached_state()
1692
self._last_revision_info_cache = revno, revision_id
1693
# Update the _real_branch's cache too.
1694
if self._real_branch is not None:
1695
cache = self._last_revision_info_cache
1696
self._real_branch._last_revision_info_cache = cache
1698
raise errors.UnexpectedSmartServerResponse(response)
1701
def generate_revision_history(self, revision_id, last_rev=None,
1703
medium = self._client._medium
1704
if not medium._is_remote_before((1, 6)):
1706
self._set_last_revision_descendant(revision_id, other_branch,
1707
allow_diverged=True, allow_overwrite_descendant=True)
1709
except errors.UnknownSmartMethod:
1710
medium._remember_remote_is_before((1, 6))
1711
self._clear_cached_state_of_remote_branch_only()
1713
self._real_branch.generate_revision_history(
1714
revision_id, last_rev=last_rev, other_branch=other_branch)
1719
return self._real_branch.tags
1721
def set_push_location(self, location):
1723
return self._real_branch.set_push_location(location)
1726
def update_revisions(self, other, stop_revision=None, overwrite=False,
1728
"""See Branch.update_revisions."""
1731
if stop_revision is None:
1732
stop_revision = other.last_revision()
1733
if revision.is_null(stop_revision):
1734
# if there are no commits, we're done.
1736
self.fetch(other, stop_revision)
1739
# Just unconditionally set the new revision. We don't care if
1740
# the branches have diverged.
1741
self._set_last_revision(stop_revision)
1743
medium = self._client._medium
1744
if not medium._is_remote_before((1, 6)):
1746
self._set_last_revision_descendant(stop_revision, other)
1748
except errors.UnknownSmartMethod:
1749
medium._remember_remote_is_before((1, 6))
1750
# Fallback for pre-1.6 servers: check for divergence
1751
# client-side, then do _set_last_revision.
1752
last_rev = revision.ensure_null(self.last_revision())
1754
graph = self.repository.get_graph()
1755
if self._check_if_descendant_or_diverged(
1756
stop_revision, last_rev, graph, other):
1757
# stop_revision is a descendant of last_rev, but we aren't
1758
# overwriting, so we're done.
1760
self._set_last_revision(stop_revision)
1765
def _extract_tar(tar, to_dir):
1766
"""Extract all the contents of a tarfile object.
1768
A replacement for extractall, which is not present in python2.4
1771
tar.extract(tarinfo, to_dir)
1774
def _translate_error(err, **context):
1775
"""Translate an ErrorFromSmartServer into a more useful error.
1777
Possible context keys:
1785
If the error from the server doesn't match a known pattern, then
1786
UnknownErrorFromSmartServer is raised.
1790
return context[name]
1791
except KeyError, key_err:
1792
mutter('Missing key %r in context %r', key_err.args[0], context)
1795
"""Get the path from the context if present, otherwise use first error
1799
return context['path']
1800
except KeyError, key_err:
1802
return err.error_args[0]
1803
except IndexError, idx_err:
1805
'Missing key %r in context %r', key_err.args[0], context)
1808
if err.error_verb == 'NoSuchRevision':
1809
raise NoSuchRevision(find('branch'), err.error_args[0])
1810
elif err.error_verb == 'nosuchrevision':
1811
raise NoSuchRevision(find('repository'), err.error_args[0])
1812
elif err.error_tuple == ('nobranch',):
1813
raise errors.NotBranchError(path=find('bzrdir').root_transport.base)
1814
elif err.error_verb == 'norepository':
1815
raise errors.NoRepositoryPresent(find('bzrdir'))
1816
elif err.error_verb == 'LockContention':
1817
raise errors.LockContention('(remote lock)')
1818
elif err.error_verb == 'UnlockableTransport':
1819
raise errors.UnlockableTransport(find('bzrdir').root_transport)
1820
elif err.error_verb == 'LockFailed':
1821
raise errors.LockFailed(err.error_args[0], err.error_args[1])
1822
elif err.error_verb == 'TokenMismatch':
1823
raise errors.TokenMismatch(find('token'), '(remote token)')
1824
elif err.error_verb == 'Diverged':
1825
raise errors.DivergedBranches(find('branch'), find('other_branch'))
1826
elif err.error_verb == 'TipChangeRejected':
1827
raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
1828
elif err.error_verb == 'UnstackableBranchFormat':
1829
raise errors.UnstackableBranchFormat(*err.error_args)
1830
elif err.error_verb == 'UnstackableRepositoryFormat':
1831
raise errors.UnstackableRepositoryFormat(*err.error_args)
1832
elif err.error_verb == 'NotStacked':
1833
raise errors.NotStacked(branch=find('branch'))
1834
elif err.error_verb == 'PermissionDenied':
1836
if len(err.error_args) >= 2:
1837
extra = err.error_args[1]
1840
raise errors.PermissionDenied(path, extra=extra)
1841
elif err.error_verb == 'ReadError':
1843
raise errors.ReadError(path)
1844
elif err.error_verb == 'NoSuchFile':
1846
raise errors.NoSuchFile(path)
1847
elif err.error_verb == 'FileExists':
1848
raise errors.FileExists(err.error_args[0])
1849
elif err.error_verb == 'DirectoryNotEmpty':
1850
raise errors.DirectoryNotEmpty(err.error_args[0])
1851
elif err.error_verb == 'ShortReadvError':
1852
args = err.error_args
1853
raise errors.ShortReadvError(
1854
args[0], int(args[1]), int(args[2]), int(args[3]))
1855
elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
1856
encoding = str(err.error_args[0]) # encoding must always be a string
1857
val = err.error_args[1]
1858
start = int(err.error_args[2])
1859
end = int(err.error_args[3])
1860
reason = str(err.error_args[4]) # reason must always be a string
1861
if val.startswith('u:'):
1862
val = val[2:].decode('utf-8')
1863
elif val.startswith('s:'):
1864
val = val[2:].decode('base64')
1865
if err.error_verb == 'UnicodeDecodeError':
1866
raise UnicodeDecodeError(encoding, val, start, end, reason)
1867
elif err.error_verb == 'UnicodeEncodeError':
1868
raise UnicodeEncodeError(encoding, val, start, end, reason)
1869
elif err.error_verb == 'ReadOnlyError':
1870
raise errors.TransportNotPossible('readonly transport')
1871
raise errors.UnknownErrorFromSmartServer(err)
added
removed
bzrlib/remote.py
