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# Copyright (C) 2006-2011 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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bzrdir as _mod_bzrdir,
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repository as _mod_repository,
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revision as _mod_revision,
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from bzrlib.branch import BranchReferenceFormat, BranchWriteLockResult
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from bzrlib.decorators import needs_read_lock, needs_write_lock, only_raises
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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, repository as smart_repo
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from bzrlib.smart.client import _SmartClient
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from bzrlib.revision import NULL_REVISION
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from bzrlib.repository import RepositoryWriteLockResult, _LazyListJoin
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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(self, method, args, body_bytes, **err_context):
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return self._client.call_with_body_bytes(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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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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def response_tuple_to_repo_format(response):
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"""Convert a response tuple describing a repository format to a format."""
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format = RemoteRepositoryFormat()
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format._rich_root_data = (response[0] == 'yes')
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format._supports_tree_reference = (response[1] == 'yes')
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format._supports_external_lookups = (response[2] == 'yes')
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format._network_name = response[3]
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# Note that RemoteBzrDirProber lives in bzrlib.bzrdir so bzrlib.remote
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# does not have to be imported unless a remote format is involved.
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class RemoteBzrDirFormat(_mod_bzrdir.BzrDirMetaFormat1):
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"""Format representing bzrdirs accessed via a smart server"""
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supports_workingtrees = False
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_mod_bzrdir.BzrDirMetaFormat1.__init__(self)
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# XXX: It's a bit ugly that the network name is here, because we'd
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# like to believe that format objects are stateless or at least
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# immutable, However, we do at least avoid mutating the name after
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# it's returned. See <https://bugs.launchpad.net/bzr/+bug/504102>
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self._network_name = None
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return "%s(_network_name=%r)" % (self.__class__.__name__,
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def get_format_description(self):
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if self._network_name:
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real_format = controldir.network_format_registry.get(self._network_name)
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return 'Remote: ' + real_format.get_format_description()
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return 'bzr remote bzrdir'
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def get_format_string(self):
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raise NotImplementedError(self.get_format_string)
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def network_name(self):
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if self._network_name:
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return self._network_name
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raise AssertionError("No network name set.")
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def initialize_on_transport(self, transport):
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# hand off the request to the smart server
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client_medium = transport.get_smart_medium()
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except errors.NoSmartMedium:
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# TODO: lookup the local format from a server hint.
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local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
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return local_dir_format.initialize_on_transport(transport)
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client = _SmartClient(client_medium)
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path = client.remote_path_from_transport(transport)
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response = client.call('BzrDirFormat.initialize', path)
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except errors.ErrorFromSmartServer, err:
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_translate_error(err, path=path)
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if response[0] != 'ok':
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raise errors.SmartProtocolError('unexpected response code %s' % (response,))
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format = RemoteBzrDirFormat()
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self._supply_sub_formats_to(format)
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return RemoteBzrDir(transport, format)
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def parse_NoneTrueFalse(self, arg):
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raise AssertionError("invalid arg %r" % arg)
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def _serialize_NoneTrueFalse(self, arg):
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def _serialize_NoneString(self, arg):
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def initialize_on_transport_ex(self, transport, use_existing_dir=False,
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create_prefix=False, force_new_repo=False, stacked_on=None,
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stack_on_pwd=None, repo_format_name=None, make_working_trees=None,
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# hand off the request to the smart server
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client_medium = transport.get_smart_medium()
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except errors.NoSmartMedium:
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# Decline to open it if the server doesn't support our required
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# version (3) so that the VFS-based transport will do it.
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if client_medium.should_probe():
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server_version = client_medium.protocol_version()
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if server_version != '2':
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except errors.SmartProtocolError:
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# Apparently there's no usable smart server there, even though
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# the medium supports the smart protocol.
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client = _SmartClient(client_medium)
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path = client.remote_path_from_transport(transport)
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if client_medium._is_remote_before((1, 16)):
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# TODO: lookup the local format from a server hint.
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local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
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self._supply_sub_formats_to(local_dir_format)
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return local_dir_format.initialize_on_transport_ex(transport,
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use_existing_dir=use_existing_dir, create_prefix=create_prefix,
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force_new_repo=force_new_repo, stacked_on=stacked_on,
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stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
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make_working_trees=make_working_trees, shared_repo=shared_repo,
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return self._initialize_on_transport_ex_rpc(client, path, transport,
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use_existing_dir, create_prefix, force_new_repo, stacked_on,
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stack_on_pwd, repo_format_name, make_working_trees, shared_repo)
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def _initialize_on_transport_ex_rpc(self, client, path, transport,
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use_existing_dir, create_prefix, force_new_repo, stacked_on,
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stack_on_pwd, repo_format_name, make_working_trees, shared_repo):
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args.append(self._serialize_NoneTrueFalse(use_existing_dir))
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args.append(self._serialize_NoneTrueFalse(create_prefix))
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args.append(self._serialize_NoneTrueFalse(force_new_repo))
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args.append(self._serialize_NoneString(stacked_on))
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# stack_on_pwd is often/usually our transport
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stack_on_pwd = transport.relpath(stack_on_pwd)
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except errors.PathNotChild:
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args.append(self._serialize_NoneString(stack_on_pwd))
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args.append(self._serialize_NoneString(repo_format_name))
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args.append(self._serialize_NoneTrueFalse(make_working_trees))
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args.append(self._serialize_NoneTrueFalse(shared_repo))
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request_network_name = self._network_name or \
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_mod_bzrdir.BzrDirFormat.get_default_format().network_name()
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response = client.call('BzrDirFormat.initialize_ex_1.16',
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request_network_name, path, *args)
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except errors.UnknownSmartMethod:
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client._medium._remember_remote_is_before((1,16))
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local_dir_format = _mod_bzrdir.BzrDirMetaFormat1()
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self._supply_sub_formats_to(local_dir_format)
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return local_dir_format.initialize_on_transport_ex(transport,
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use_existing_dir=use_existing_dir, create_prefix=create_prefix,
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force_new_repo=force_new_repo, stacked_on=stacked_on,
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stack_on_pwd=stack_on_pwd, repo_format_name=repo_format_name,
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make_working_trees=make_working_trees, shared_repo=shared_repo,
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except errors.ErrorFromSmartServer, err:
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_translate_error(err, path=path)
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repo_path = response[0]
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bzrdir_name = response[6]
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require_stacking = response[7]
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require_stacking = self.parse_NoneTrueFalse(require_stacking)
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format = RemoteBzrDirFormat()
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format._network_name = bzrdir_name
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self._supply_sub_formats_to(format)
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bzrdir = RemoteBzrDir(transport, format, _client=client)
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repo_format = response_tuple_to_repo_format(response[1:])
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repo_bzrdir_format = RemoteBzrDirFormat()
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repo_bzrdir_format._network_name = response[5]
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repo_bzr = RemoteBzrDir(transport.clone(repo_path),
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final_stack = response[8] or None
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final_stack_pwd = response[9] or None
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final_stack_pwd = urlutils.join(
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transport.base, final_stack_pwd)
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remote_repo = RemoteRepository(repo_bzr, repo_format)
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if len(response) > 10:
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# Updated server verb that locks remotely.
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repo_lock_token = response[10] or None
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remote_repo.lock_write(repo_lock_token, _skip_rpc=True)
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remote_repo.dont_leave_lock_in_place()
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remote_repo.lock_write()
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policy = _mod_bzrdir.UseExistingRepository(remote_repo, final_stack,
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final_stack_pwd, require_stacking)
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policy.acquire_repository()
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bzrdir._format.set_branch_format(self.get_branch_format())
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# The repo has already been created, but we need to make sure that
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# we'll make a stackable branch.
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bzrdir._format.require_stacking(_skip_repo=True)
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return remote_repo, bzrdir, require_stacking, policy
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def _open(self, transport):
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return RemoteBzrDir(transport, self)
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def __eq__(self, other):
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if not isinstance(other, RemoteBzrDirFormat):
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return self.get_format_description() == other.get_format_description()
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def __return_repository_format(self):
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# Always return a RemoteRepositoryFormat object, but if a specific bzr
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# repository format has been asked for, tell the RemoteRepositoryFormat
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# that it should use that for init() etc.
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result = RemoteRepositoryFormat()
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custom_format = getattr(self, '_repository_format', None)
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if isinstance(custom_format, RemoteRepositoryFormat):
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# We will use the custom format to create repositories over the
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# wire; expose its details like rich_root_data for code to
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result._custom_format = custom_format
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def get_branch_format(self):
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result = _mod_bzrdir.BzrDirMetaFormat1.get_branch_format(self)
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if not isinstance(result, RemoteBranchFormat):
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new_result = RemoteBranchFormat()
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new_result._custom_format = result
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self.set_branch_format(new_result)
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repository_format = property(__return_repository_format,
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_mod_bzrdir.BzrDirMetaFormat1._set_repository_format) #.im_func)
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class RemoteBzrDir(_mod_bzrdir.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, format, _client=None, _force_probe=False):
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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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use of a real bzrdir.
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_mod_bzrdir.BzrDir.__init__(self, transport, format)
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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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self._has_working_tree = None
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# 1-shot cache for the call pattern 'create_branch; open_branch' - see
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# create_branch for details.
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self._next_open_branch_result = 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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return '%s(%r)' % (self.__class__.__name__, self._client)
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def _probe_bzrdir(self):
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medium = self._client._medium
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path = self._path_for_remote_call(self._client)
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if medium._is_remote_before((2, 1)):
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self._rpc_open_2_1(path)
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except errors.UnknownSmartMethod:
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medium._remember_remote_is_before((2, 1))
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def _rpc_open_2_1(self, path):
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response = self._call('BzrDir.open_2.1', path)
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if response == ('no',):
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raise errors.NotBranchError(path=self.root_transport.base)
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elif response[0] == 'yes':
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if response[1] == 'yes':
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self._has_working_tree = True
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elif response[1] == 'no':
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self._has_working_tree = False
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raise errors.UnexpectedSmartServerResponse(response)
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raise errors.UnexpectedSmartServerResponse(response)
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def _rpc_open(self, path):
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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=self.root_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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if 'hpssvfs' in debug.debug_flags:
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warning('VFS BzrDir access triggered\n%s',
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''.join(traceback.format_stack()))
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self._real_bzrdir = _mod_bzrdir.BzrDir.open_from_transport(
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self.root_transport, _server_formats=False)
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self._format._network_name = \
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self._real_bzrdir._format.network_name()
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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 break_lock(self):
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# Prevent aliasing problems in the next_open_branch_result cache.
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# See create_branch for rationale.
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self._next_open_branch_result = None
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return _mod_bzrdir.BzrDir.break_lock(self)
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def _vfs_cloning_metadir(self, require_stacking=False):
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return self._real_bzrdir.cloning_metadir(
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require_stacking=require_stacking)
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def cloning_metadir(self, require_stacking=False):
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medium = self._client._medium
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if medium._is_remote_before((1, 13)):
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return self._vfs_cloning_metadir(require_stacking=require_stacking)
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verb = 'BzrDir.cloning_metadir'
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path = self._path_for_remote_call(self._client)
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response = self._call(verb, path, stacking)
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except errors.UnknownSmartMethod:
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medium._remember_remote_is_before((1, 13))
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return self._vfs_cloning_metadir(require_stacking=require_stacking)
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except errors.UnknownErrorFromSmartServer, err:
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if err.error_tuple != ('BranchReference',):
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# We need to resolve the branch reference to determine the
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# cloning_metadir. This causes unnecessary RPCs to open the
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# referenced branch (and bzrdir, etc) but only when the caller
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# didn't already resolve the branch reference.
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referenced_branch = self.open_branch()
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return referenced_branch.bzrdir.cloning_metadir()
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if len(response) != 3:
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raise errors.UnexpectedSmartServerResponse(response)
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control_name, repo_name, branch_info = response
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if len(branch_info) != 2:
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raise errors.UnexpectedSmartServerResponse(response)
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branch_ref, branch_name = branch_info
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format = controldir.network_format_registry.get(control_name)
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format.repository_format = _mod_repository.network_format_registry.get(
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if branch_ref == 'ref':
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# XXX: we need possible_transports here to avoid reopening the
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# connection to the referenced location
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ref_bzrdir = _mod_bzrdir.BzrDir.open(branch_name)
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branch_format = ref_bzrdir.cloning_metadir().get_branch_format()
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format.set_branch_format(branch_format)
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elif branch_ref == 'branch':
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format.set_branch_format(
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branch.network_format_registry.get(branch_name))
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raise errors.UnexpectedSmartServerResponse(response)
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def create_repository(self, shared=False):
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# as per meta1 formats - just delegate to the format object which may
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result = self._format.repository_format.initialize(self, shared)
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if not isinstance(result, RemoteRepository):
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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, name=None, repository=None):
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# as per meta1 formats - just delegate to the format object which may
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real_branch = self._format.get_branch_format().initialize(self,
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name=name, repository=repository)
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if not isinstance(real_branch, RemoteBranch):
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if not isinstance(repository, RemoteRepository):
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raise AssertionError(
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'need a RemoteRepository to use with RemoteBranch, got %r'
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result = RemoteBranch(self, repository, real_branch, name=name)
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# BzrDir.clone_on_transport() uses the result of create_branch but does
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# not return it to its callers; we save approximately 8% of our round
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# trips by handing the branch we created back to the first caller to
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# open_branch rather than probing anew. Long term we need a API in
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# bzrdir that doesn't discard result objects (like result_branch).
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self._next_open_branch_result = result
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def destroy_branch(self, name=None):
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"""See BzrDir.destroy_branch"""
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self._real_bzrdir.destroy_branch(name=name)
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self._next_open_branch_result = None
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def create_workingtree(self, revision_id=None, from_branch=None,
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accelerator_tree=None, hardlink=False):
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raise errors.NotLocalUrl(self.transport.base)
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def find_branch_format(self, name=None):
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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(name=name)
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def get_branch_reference(self, name=None):
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"""See BzrDir.get_branch_reference()."""
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# XXX JRV20100304: Support opening colocated branches
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raise errors.NoColocatedBranchSupport(self)
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response = self._get_branch_reference()
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if response[0] == 'ref':
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def _get_branch_reference(self):
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path = self._path_for_remote_call(self._client)
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medium = self._client._medium
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('BzrDir.open_branchV3', (2, 1)),
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('BzrDir.open_branchV2', (1, 13)),
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('BzrDir.open_branch', None),
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for verb, required_version in candidate_calls:
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if required_version and medium._is_remote_before(required_version):
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response = self._call(verb, path)
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except errors.UnknownSmartMethod:
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if required_version is None:
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medium._remember_remote_is_before(required_version)
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if verb == 'BzrDir.open_branch':
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if response[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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if response[1] != '':
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return ('ref', response[1])
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return ('branch', '')
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if response[0] not in ('ref', 'branch'):
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raise errors.UnexpectedSmartServerResponse(response)
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def _get_tree_branch(self, name=None):
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"""See BzrDir._get_tree_branch()."""
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return None, self.open_branch(name=name)
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def open_branch(self, name=None, unsupported=False,
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ignore_fallbacks=False):
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raise NotImplementedError('unsupported flag support not implemented yet.')
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if self._next_open_branch_result is not None:
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# See create_branch for details.
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result = self._next_open_branch_result
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self._next_open_branch_result = None
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response = self._get_branch_reference()
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if response[0] == 'ref':
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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, name=name, _found=True,
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location=response[1], ignore_fallbacks=ignore_fallbacks)
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branch_format_name = response[1]
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if not branch_format_name:
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branch_format_name = None
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format = RemoteBranchFormat(network_name=branch_format_name)
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return RemoteBranch(self, self.find_repository(), format=format,
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setup_stacking=not ignore_fallbacks, name=name)
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def _open_repo_v1(self, path):
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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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# servers that only support the v1 method don't support external
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repo = self._real_bzrdir.open_repository()
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response = response + ('no', repo._format.network_name())
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return response, repo
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def _open_repo_v2(self, path):
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verb = 'BzrDir.find_repositoryV2'
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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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repo = self._real_bzrdir.open_repository()
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response = response + (repo._format.network_name(),)
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return response, repo
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def _open_repo_v3(self, path):
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verb = 'BzrDir.find_repositoryV3'
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medium = self._client._medium
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if medium._is_remote_before((1, 13)):
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raise errors.UnknownSmartMethod(verb)
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response = self._call(verb, path)
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except errors.UnknownSmartMethod:
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medium._remember_remote_is_before((1, 13))
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if response[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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return response, None
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def open_repository(self):
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path = self._path_for_remote_call(self._client)
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for probe in [self._open_repo_v3, self._open_repo_v2,
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response, real_repo = probe(path)
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except errors.UnknownSmartMethod:
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raise errors.UnknownSmartMethod('BzrDir.find_repository{3,2,}')
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if response[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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if len(response) != 6:
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raise SmartProtocolError('incorrect response length %s' % (response,))
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if response[1] == '':
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# repo is at this dir.
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format = response_tuple_to_repo_format(response[2:])
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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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remote_repo = RemoteRepository(self, format)
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format._creating_repo = remote_repo
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if real_repo is not None:
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remote_repo._set_real_repository(real_repo)
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raise errors.NoRepositoryPresent(self)
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def has_workingtree(self):
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if self._has_working_tree is None:
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self._has_working_tree = self._real_bzrdir.has_workingtree()
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return self._has_working_tree
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def open_workingtree(self, recommend_upgrade=True):
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if self.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)
675
def get_branch_transport(self, branch_format, name=None):
677
return self._real_bzrdir.get_branch_transport(branch_format, name=name)
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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):
685
return self._real_bzrdir.get_workingtree_transport(workingtree_format)
687
def can_convert_format(self):
688
"""Upgrading of remote bzrdirs is not supported yet."""
691
def needs_format_conversion(self, format):
692
"""Upgrading of remote bzrdirs is not supported yet."""
695
def clone(self, url, revision_id=None, force_new_repo=False,
696
preserve_stacking=False):
698
return self._real_bzrdir.clone(url, revision_id=revision_id,
699
force_new_repo=force_new_repo, preserve_stacking=preserve_stacking)
701
def _get_config(self):
702
return RemoteBzrDirConfig(self)
705
class RemoteRepositoryFormat(vf_repository.VersionedFileRepositoryFormat):
706
"""Format for repositories accessed over a _SmartClient.
708
Instances of this repository are represented by RemoteRepository
711
The RemoteRepositoryFormat is parameterized during construction
712
to reflect the capabilities of the real, remote format. Specifically
713
the attributes rich_root_data and supports_tree_reference are set
714
on a per instance basis, and are not set (and should not be) at
717
:ivar _custom_format: If set, a specific concrete repository format that
718
will be used when initializing a repository with this
719
RemoteRepositoryFormat.
720
:ivar _creating_repo: If set, the repository object that this
721
RemoteRepositoryFormat was created for: it can be called into
722
to obtain data like the network name.
725
_matchingbzrdir = RemoteBzrDirFormat()
726
supports_full_versioned_files = True
727
supports_leaving_lock = True
730
_mod_repository.RepositoryFormat.__init__(self)
731
self._custom_format = None
732
self._network_name = None
733
self._creating_bzrdir = None
734
self._revision_graph_can_have_wrong_parents = None
735
self._supports_chks = None
736
self._supports_external_lookups = None
737
self._supports_tree_reference = None
738
self._supports_funky_characters = None
739
self._rich_root_data = None
742
return "%s(_network_name=%r)" % (self.__class__.__name__,
746
def fast_deltas(self):
748
return self._custom_format.fast_deltas
751
def rich_root_data(self):
752
if self._rich_root_data is None:
754
self._rich_root_data = self._custom_format.rich_root_data
755
return self._rich_root_data
758
def supports_chks(self):
759
if self._supports_chks is None:
761
self._supports_chks = self._custom_format.supports_chks
762
return self._supports_chks
765
def supports_external_lookups(self):
766
if self._supports_external_lookups is None:
768
self._supports_external_lookups = \
769
self._custom_format.supports_external_lookups
770
return self._supports_external_lookups
773
def supports_funky_characters(self):
774
if self._supports_funky_characters is None:
776
self._supports_funky_characters = \
777
self._custom_format.supports_funky_characters
778
return self._supports_funky_characters
781
def supports_tree_reference(self):
782
if self._supports_tree_reference is None:
784
self._supports_tree_reference = \
785
self._custom_format.supports_tree_reference
786
return self._supports_tree_reference
789
def revision_graph_can_have_wrong_parents(self):
790
if self._revision_graph_can_have_wrong_parents is None:
792
self._revision_graph_can_have_wrong_parents = \
793
self._custom_format.revision_graph_can_have_wrong_parents
794
return self._revision_graph_can_have_wrong_parents
796
def _vfs_initialize(self, a_bzrdir, shared):
797
"""Helper for common code in initialize."""
798
if self._custom_format:
799
# Custom format requested
800
result = self._custom_format.initialize(a_bzrdir, shared=shared)
801
elif self._creating_bzrdir is not None:
802
# Use the format that the repository we were created to back
804
prior_repo = self._creating_bzrdir.open_repository()
805
prior_repo._ensure_real()
806
result = prior_repo._real_repository._format.initialize(
807
a_bzrdir, shared=shared)
809
# assume that a_bzr is a RemoteBzrDir but the smart server didn't
810
# support remote initialization.
811
# We delegate to a real object at this point (as RemoteBzrDir
812
# delegate to the repository format which would lead to infinite
813
# recursion if we just called a_bzrdir.create_repository.
814
a_bzrdir._ensure_real()
815
result = a_bzrdir._real_bzrdir.create_repository(shared=shared)
816
if not isinstance(result, RemoteRepository):
817
return self.open(a_bzrdir)
821
def initialize(self, a_bzrdir, shared=False):
822
# Being asked to create on a non RemoteBzrDir:
823
if not isinstance(a_bzrdir, RemoteBzrDir):
824
return self._vfs_initialize(a_bzrdir, shared)
825
medium = a_bzrdir._client._medium
826
if medium._is_remote_before((1, 13)):
827
return self._vfs_initialize(a_bzrdir, shared)
828
# Creating on a remote bzr dir.
829
# 1) get the network name to use.
830
if self._custom_format:
831
network_name = self._custom_format.network_name()
832
elif self._network_name:
833
network_name = self._network_name
835
# Select the current bzrlib default and ask for that.
836
reference_bzrdir_format = _mod_bzrdir.format_registry.get('default')()
837
reference_format = reference_bzrdir_format.repository_format
838
network_name = reference_format.network_name()
839
# 2) try direct creation via RPC
840
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
841
verb = 'BzrDir.create_repository'
847
response = a_bzrdir._call(verb, path, network_name, shared_str)
848
except errors.UnknownSmartMethod:
849
# Fallback - use vfs methods
850
medium._remember_remote_is_before((1, 13))
851
return self._vfs_initialize(a_bzrdir, shared)
853
# Turn the response into a RemoteRepository object.
854
format = response_tuple_to_repo_format(response[1:])
855
# Used to support creating a real format instance when needed.
856
format._creating_bzrdir = a_bzrdir
857
remote_repo = RemoteRepository(a_bzrdir, format)
858
format._creating_repo = remote_repo
861
def open(self, a_bzrdir):
862
if not isinstance(a_bzrdir, RemoteBzrDir):
863
raise AssertionError('%r is not a RemoteBzrDir' % (a_bzrdir,))
864
return a_bzrdir.open_repository()
866
def _ensure_real(self):
867
if self._custom_format is None:
868
self._custom_format = _mod_repository.network_format_registry.get(
872
def _fetch_order(self):
874
return self._custom_format._fetch_order
877
def _fetch_uses_deltas(self):
879
return self._custom_format._fetch_uses_deltas
882
def _fetch_reconcile(self):
884
return self._custom_format._fetch_reconcile
886
def get_format_description(self):
888
return 'Remote: ' + self._custom_format.get_format_description()
890
def __eq__(self, other):
891
return self.__class__ is other.__class__
893
def network_name(self):
894
if self._network_name:
895
return self._network_name
896
self._creating_repo._ensure_real()
897
return self._creating_repo._real_repository._format.network_name()
900
def pack_compresses(self):
902
return self._custom_format.pack_compresses
905
def _serializer(self):
907
return self._custom_format._serializer
910
class RemoteRepository(_RpcHelper, lock._RelockDebugMixin,
911
controldir.ControlComponent):
912
"""Repository accessed over rpc.
914
For the moment most operations are performed using local transport-backed
918
def __init__(self, remote_bzrdir, format, real_repository=None, _client=None):
919
"""Create a RemoteRepository instance.
921
:param remote_bzrdir: The bzrdir hosting this repository.
922
:param format: The RemoteFormat object to use.
923
:param real_repository: If not None, a local implementation of the
924
repository logic for the repository, usually accessing the data
926
:param _client: Private testing parameter - override the smart client
927
to be used by the repository.
930
self._real_repository = real_repository
932
self._real_repository = None
933
self.bzrdir = remote_bzrdir
935
self._client = remote_bzrdir._client
937
self._client = _client
938
self._format = format
939
self._lock_mode = None
940
self._lock_token = None
942
self._leave_lock = False
943
# Cache of revision parents; misses are cached during read locks, and
944
# write locks when no _real_repository has been set.
945
self._unstacked_provider = graph.CachingParentsProvider(
946
get_parent_map=self._get_parent_map_rpc)
947
self._unstacked_provider.disable_cache()
949
# These depend on the actual remote format, so force them off for
950
# maximum compatibility. XXX: In future these should depend on the
951
# remote repository instance, but this is irrelevant until we perform
952
# reconcile via an RPC call.
953
self._reconcile_does_inventory_gc = False
954
self._reconcile_fixes_text_parents = False
955
self._reconcile_backsup_inventory = False
956
self.base = self.bzrdir.transport.base
957
# Additional places to query for data.
958
self._fallback_repositories = []
961
def user_transport(self):
962
return self.bzrdir.user_transport
965
def control_transport(self):
966
# XXX: Normally you shouldn't directly get at the remote repository
967
# transport, but I'm not sure it's worth making this method
968
# optional -- mbp 2010-04-21
969
return self.bzrdir.get_repository_transport(None)
972
return "%s(%s)" % (self.__class__.__name__, self.base)
976
def abort_write_group(self, suppress_errors=False):
977
"""Complete a write group on the decorated repository.
979
Smart methods perform operations in a single step so this API
980
is not really applicable except as a compatibility thunk
981
for older plugins that don't use e.g. the CommitBuilder
984
:param suppress_errors: see Repository.abort_write_group.
987
return self._real_repository.abort_write_group(
988
suppress_errors=suppress_errors)
992
"""Decorate the real repository for now.
994
In the long term a full blown network facility is needed to avoid
995
creating a real repository object locally.
998
return self._real_repository.chk_bytes
1000
def commit_write_group(self):
1001
"""Complete a write group on the decorated repository.
1003
Smart methods perform operations in a single step so this API
1004
is not really applicable except as a compatibility thunk
1005
for older plugins that don't use e.g. the CommitBuilder
1009
return self._real_repository.commit_write_group()
1011
def resume_write_group(self, tokens):
1013
return self._real_repository.resume_write_group(tokens)
1015
def suspend_write_group(self):
1017
return self._real_repository.suspend_write_group()
1019
def get_missing_parent_inventories(self, check_for_missing_texts=True):
1021
return self._real_repository.get_missing_parent_inventories(
1022
check_for_missing_texts=check_for_missing_texts)
1024
def _get_rev_id_for_revno_vfs(self, revno, known_pair):
1026
return self._real_repository.get_rev_id_for_revno(
1029
def get_rev_id_for_revno(self, revno, known_pair):
1030
"""See Repository.get_rev_id_for_revno."""
1031
path = self.bzrdir._path_for_remote_call(self._client)
1033
if self._client._medium._is_remote_before((1, 17)):
1034
return self._get_rev_id_for_revno_vfs(revno, known_pair)
1035
response = self._call(
1036
'Repository.get_rev_id_for_revno', path, revno, known_pair)
1037
except errors.UnknownSmartMethod:
1038
self._client._medium._remember_remote_is_before((1, 17))
1039
return self._get_rev_id_for_revno_vfs(revno, known_pair)
1040
if response[0] == 'ok':
1041
return True, response[1]
1042
elif response[0] == 'history-incomplete':
1043
known_pair = response[1:3]
1044
for fallback in self._fallback_repositories:
1045
found, result = fallback.get_rev_id_for_revno(revno, known_pair)
1050
# Not found in any fallbacks
1051
return False, known_pair
1053
raise errors.UnexpectedSmartServerResponse(response)
1055
def _ensure_real(self):
1056
"""Ensure that there is a _real_repository set.
1058
Used before calls to self._real_repository.
1060
Note that _ensure_real causes many roundtrips to the server which are
1061
not desirable, and prevents the use of smart one-roundtrip RPC's to
1062
perform complex operations (such as accessing parent data, streaming
1063
revisions etc). Adding calls to _ensure_real should only be done when
1064
bringing up new functionality, adding fallbacks for smart methods that
1065
require a fallback path, and never to replace an existing smart method
1066
invocation. If in doubt chat to the bzr network team.
1068
if self._real_repository is None:
1069
if 'hpssvfs' in debug.debug_flags:
1071
warning('VFS Repository access triggered\n%s',
1072
''.join(traceback.format_stack()))
1073
self._unstacked_provider.missing_keys.clear()
1074
self.bzrdir._ensure_real()
1075
self._set_real_repository(
1076
self.bzrdir._real_bzrdir.open_repository())
1078
def _translate_error(self, err, **context):
1079
self.bzrdir._translate_error(err, repository=self, **context)
1081
def find_text_key_references(self):
1082
"""Find the text key references within the repository.
1084
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
1085
to whether they were referred to by the inventory of the
1086
revision_id that they contain. The inventory texts from all present
1087
revision ids are assessed to generate this report.
1090
return self._real_repository.find_text_key_references()
1092
def _generate_text_key_index(self):
1093
"""Generate a new text key index for the repository.
1095
This is an expensive function that will take considerable time to run.
1097
:return: A dict mapping (file_id, revision_id) tuples to a list of
1098
parents, also (file_id, revision_id) tuples.
1101
return self._real_repository._generate_text_key_index()
1103
def _get_revision_graph(self, revision_id):
1104
"""Private method for using with old (< 1.2) servers to fallback."""
1105
if revision_id is None:
1107
elif _mod_revision.is_null(revision_id):
1110
path = self.bzrdir._path_for_remote_call(self._client)
1111
response = self._call_expecting_body(
1112
'Repository.get_revision_graph', path, revision_id)
1113
response_tuple, response_handler = response
1114
if response_tuple[0] != 'ok':
1115
raise errors.UnexpectedSmartServerResponse(response_tuple)
1116
coded = response_handler.read_body_bytes()
1118
# no revisions in this repository!
1120
lines = coded.split('\n')
1123
d = tuple(line.split())
1124
revision_graph[d[0]] = d[1:]
1126
return revision_graph
1128
def _get_sink(self):
1129
"""See Repository._get_sink()."""
1130
return RemoteStreamSink(self)
1132
def _get_source(self, to_format):
1133
"""Return a source for streaming from this repository."""
1134
return RemoteStreamSource(self, to_format)
1137
def get_file_graph(self):
1138
return graph.Graph(self.texts)
1141
def has_revision(self, revision_id):
1142
"""True if this repository has a copy of the revision."""
1143
# Copy of bzrlib.repository.Repository.has_revision
1144
return revision_id in self.has_revisions((revision_id,))
1147
def has_revisions(self, revision_ids):
1148
"""Probe to find out the presence of multiple revisions.
1150
:param revision_ids: An iterable of revision_ids.
1151
:return: A set of the revision_ids that were present.
1153
# Copy of bzrlib.repository.Repository.has_revisions
1154
parent_map = self.get_parent_map(revision_ids)
1155
result = set(parent_map)
1156
if _mod_revision.NULL_REVISION in revision_ids:
1157
result.add(_mod_revision.NULL_REVISION)
1160
def _has_same_fallbacks(self, other_repo):
1161
"""Returns true if the repositories have the same fallbacks."""
1162
# XXX: copied from Repository; it should be unified into a base class
1163
# <https://bugs.launchpad.net/bzr/+bug/401622>
1164
my_fb = self._fallback_repositories
1165
other_fb = other_repo._fallback_repositories
1166
if len(my_fb) != len(other_fb):
1168
for f, g in zip(my_fb, other_fb):
1169
if not f.has_same_location(g):
1173
def has_same_location(self, other):
1174
# TODO: Move to RepositoryBase and unify with the regular Repository
1175
# one; unfortunately the tests rely on slightly different behaviour at
1176
# present -- mbp 20090710
1177
return (self.__class__ is other.__class__ and
1178
self.bzrdir.transport.base == other.bzrdir.transport.base)
1180
def get_graph(self, other_repository=None):
1181
"""Return the graph for this repository format"""
1182
parents_provider = self._make_parents_provider(other_repository)
1183
return graph.Graph(parents_provider)
1186
def get_known_graph_ancestry(self, revision_ids):
1187
"""Return the known graph for a set of revision ids and their ancestors.
1189
st = static_tuple.StaticTuple
1190
revision_keys = [st(r_id).intern() for r_id in revision_ids]
1191
known_graph = self.revisions.get_known_graph_ancestry(revision_keys)
1192
return graph.GraphThunkIdsToKeys(known_graph)
1194
def gather_stats(self, revid=None, committers=None):
1195
"""See Repository.gather_stats()."""
1196
path = self.bzrdir._path_for_remote_call(self._client)
1197
# revid can be None to indicate no revisions, not just NULL_REVISION
1198
if revid is None or _mod_revision.is_null(revid):
1202
if committers is None or not committers:
1203
fmt_committers = 'no'
1205
fmt_committers = 'yes'
1206
response_tuple, response_handler = self._call_expecting_body(
1207
'Repository.gather_stats', path, fmt_revid, fmt_committers)
1208
if response_tuple[0] != 'ok':
1209
raise errors.UnexpectedSmartServerResponse(response_tuple)
1211
body = response_handler.read_body_bytes()
1213
for line in body.split('\n'):
1216
key, val_text = line.split(':')
1217
if key in ('revisions', 'size', 'committers'):
1218
result[key] = int(val_text)
1219
elif key in ('firstrev', 'latestrev'):
1220
values = val_text.split(' ')[1:]
1221
result[key] = (float(values[0]), long(values[1]))
1225
def find_branches(self, using=False):
1226
"""See Repository.find_branches()."""
1227
# should be an API call to the server.
1229
return self._real_repository.find_branches(using=using)
1231
def get_physical_lock_status(self):
1232
"""See Repository.get_physical_lock_status()."""
1233
# should be an API call to the server.
1235
return self._real_repository.get_physical_lock_status()
1237
def is_in_write_group(self):
1238
"""Return True if there is an open write group.
1240
write groups are only applicable locally for the smart server..
1242
if self._real_repository:
1243
return self._real_repository.is_in_write_group()
1245
def is_locked(self):
1246
return self._lock_count >= 1
1248
def is_shared(self):
1249
"""See Repository.is_shared()."""
1250
path = self.bzrdir._path_for_remote_call(self._client)
1251
response = self._call('Repository.is_shared', path)
1252
if response[0] not in ('yes', 'no'):
1253
raise SmartProtocolError('unexpected response code %s' % (response,))
1254
return response[0] == 'yes'
1256
def is_write_locked(self):
1257
return self._lock_mode == 'w'
1259
def _warn_if_deprecated(self, branch=None):
1260
# If we have a real repository, the check will be done there, if we
1261
# don't the check will be done remotely.
1264
def lock_read(self):
1265
"""Lock the repository for read operations.
1267
:return: A bzrlib.lock.LogicalLockResult.
1269
# wrong eventually - want a local lock cache context
1270
if not self._lock_mode:
1271
self._note_lock('r')
1272
self._lock_mode = 'r'
1273
self._lock_count = 1
1274
self._unstacked_provider.enable_cache(cache_misses=True)
1275
if self._real_repository is not None:
1276
self._real_repository.lock_read()
1277
for repo in self._fallback_repositories:
1280
self._lock_count += 1
1281
return lock.LogicalLockResult(self.unlock)
1283
def _remote_lock_write(self, token):
1284
path = self.bzrdir._path_for_remote_call(self._client)
1287
err_context = {'token': token}
1288
response = self._call('Repository.lock_write', path, token,
1290
if response[0] == 'ok':
1291
ok, token = response
1294
raise errors.UnexpectedSmartServerResponse(response)
1296
def lock_write(self, token=None, _skip_rpc=False):
1297
if not self._lock_mode:
1298
self._note_lock('w')
1300
if self._lock_token is not None:
1301
if token != self._lock_token:
1302
raise errors.TokenMismatch(token, self._lock_token)
1303
self._lock_token = token
1305
self._lock_token = self._remote_lock_write(token)
1306
# if self._lock_token is None, then this is something like packs or
1307
# svn where we don't get to lock the repo, or a weave style repository
1308
# where we cannot lock it over the wire and attempts to do so will
1310
if self._real_repository is not None:
1311
self._real_repository.lock_write(token=self._lock_token)
1312
if token is not None:
1313
self._leave_lock = True
1315
self._leave_lock = False
1316
self._lock_mode = 'w'
1317
self._lock_count = 1
1318
cache_misses = self._real_repository is None
1319
self._unstacked_provider.enable_cache(cache_misses=cache_misses)
1320
for repo in self._fallback_repositories:
1321
# Writes don't affect fallback repos
1323
elif self._lock_mode == 'r':
1324
raise errors.ReadOnlyError(self)
1326
self._lock_count += 1
1327
return RepositoryWriteLockResult(self.unlock, self._lock_token or None)
1329
def leave_lock_in_place(self):
1330
if not self._lock_token:
1331
raise NotImplementedError(self.leave_lock_in_place)
1332
self._leave_lock = True
1334
def dont_leave_lock_in_place(self):
1335
if not self._lock_token:
1336
raise NotImplementedError(self.dont_leave_lock_in_place)
1337
self._leave_lock = False
1339
def _set_real_repository(self, repository):
1340
"""Set the _real_repository for this repository.
1342
:param repository: The repository to fallback to for non-hpss
1343
implemented operations.
1345
if self._real_repository is not None:
1346
# Replacing an already set real repository.
1347
# We cannot do this [currently] if the repository is locked -
1348
# synchronised state might be lost.
1349
if self.is_locked():
1350
raise AssertionError('_real_repository is already set')
1351
if isinstance(repository, RemoteRepository):
1352
raise AssertionError()
1353
self._real_repository = repository
1354
# three code paths happen here:
1355
# 1) old servers, RemoteBranch.open() calls _ensure_real before setting
1356
# up stacking. In this case self._fallback_repositories is [], and the
1357
# real repo is already setup. Preserve the real repo and
1358
# RemoteRepository.add_fallback_repository will avoid adding
1360
# 2) new servers, RemoteBranch.open() sets up stacking, and when
1361
# ensure_real is triggered from a branch, the real repository to
1362
# set already has a matching list with separate instances, but
1363
# as they are also RemoteRepositories we don't worry about making the
1364
# lists be identical.
1365
# 3) new servers, RemoteRepository.ensure_real is triggered before
1366
# RemoteBranch.ensure real, in this case we get a repo with no fallbacks
1367
# and need to populate it.
1368
if (self._fallback_repositories and
1369
len(self._real_repository._fallback_repositories) !=
1370
len(self._fallback_repositories)):
1371
if len(self._real_repository._fallback_repositories):
1372
raise AssertionError(
1373
"cannot cleanly remove existing _fallback_repositories")
1374
for fb in self._fallback_repositories:
1375
self._real_repository.add_fallback_repository(fb)
1376
if self._lock_mode == 'w':
1377
# if we are already locked, the real repository must be able to
1378
# acquire the lock with our token.
1379
self._real_repository.lock_write(self._lock_token)
1380
elif self._lock_mode == 'r':
1381
self._real_repository.lock_read()
1383
def start_write_group(self):
1384
"""Start a write group on the decorated repository.
1386
Smart methods perform operations in a single step so this API
1387
is not really applicable except as a compatibility thunk
1388
for older plugins that don't use e.g. the CommitBuilder
1392
return self._real_repository.start_write_group()
1394
def _unlock(self, token):
1395
path = self.bzrdir._path_for_remote_call(self._client)
1397
# with no token the remote repository is not persistently locked.
1399
err_context = {'token': token}
1400
response = self._call('Repository.unlock', path, token,
1402
if response == ('ok',):
1405
raise errors.UnexpectedSmartServerResponse(response)
1407
@only_raises(errors.LockNotHeld, errors.LockBroken)
1409
if not self._lock_count:
1410
return lock.cant_unlock_not_held(self)
1411
self._lock_count -= 1
1412
if self._lock_count > 0:
1414
self._unstacked_provider.disable_cache()
1415
old_mode = self._lock_mode
1416
self._lock_mode = None
1418
# The real repository is responsible at present for raising an
1419
# exception if it's in an unfinished write group. However, it
1420
# normally will *not* actually remove the lock from disk - that's
1421
# done by the server on receiving the Repository.unlock call.
1422
# This is just to let the _real_repository stay up to date.
1423
if self._real_repository is not None:
1424
self._real_repository.unlock()
1426
# The rpc-level lock should be released even if there was a
1427
# problem releasing the vfs-based lock.
1429
# Only write-locked repositories need to make a remote method
1430
# call to perform the unlock.
1431
old_token = self._lock_token
1432
self._lock_token = None
1433
if not self._leave_lock:
1434
self._unlock(old_token)
1435
# Fallbacks are always 'lock_read()' so we don't pay attention to
1437
for repo in self._fallback_repositories:
1440
def break_lock(self):
1441
# should hand off to the network
1443
return self._real_repository.break_lock()
1445
def _get_tarball(self, compression):
1446
"""Return a TemporaryFile containing a repository tarball.
1448
Returns None if the server does not support sending tarballs.
1451
path = self.bzrdir._path_for_remote_call(self._client)
1453
response, protocol = self._call_expecting_body(
1454
'Repository.tarball', path, compression)
1455
except errors.UnknownSmartMethod:
1456
protocol.cancel_read_body()
1458
if response[0] == 'ok':
1459
# Extract the tarball and return it
1460
t = tempfile.NamedTemporaryFile()
1461
# TODO: rpc layer should read directly into it...
1462
t.write(protocol.read_body_bytes())
1465
raise errors.UnexpectedSmartServerResponse(response)
1467
def sprout(self, to_bzrdir, revision_id=None):
1468
# TODO: Option to control what format is created?
1470
dest_repo = self._real_repository._format.initialize(to_bzrdir,
1472
dest_repo.fetch(self, revision_id=revision_id)
1475
### These methods are just thin shims to the VFS object for now.
1477
def revision_tree(self, revision_id):
1479
return self._real_repository.revision_tree(revision_id)
1481
def get_serializer_format(self):
1483
return self._real_repository.get_serializer_format()
1485
def get_commit_builder(self, branch, parents, config, timestamp=None,
1486
timezone=None, committer=None, revprops=None,
1487
revision_id=None, lossy=False):
1488
# FIXME: It ought to be possible to call this without immediately
1489
# triggering _ensure_real. For now it's the easiest thing to do.
1491
real_repo = self._real_repository
1492
builder = real_repo.get_commit_builder(branch, parents,
1493
config, timestamp=timestamp, timezone=timezone,
1494
committer=committer, revprops=revprops,
1495
revision_id=revision_id, lossy=lossy)
1498
def add_fallback_repository(self, repository):
1499
"""Add a repository to use for looking up data not held locally.
1501
:param repository: A repository.
1503
if not self._format.supports_external_lookups:
1504
raise errors.UnstackableRepositoryFormat(
1505
self._format.network_name(), self.base)
1506
# We need to accumulate additional repositories here, to pass them in
1509
if self.is_locked():
1510
# We will call fallback.unlock() when we transition to the unlocked
1511
# state, so always add a lock here. If a caller passes us a locked
1512
# repository, they are responsible for unlocking it later.
1513
repository.lock_read()
1514
self._check_fallback_repository(repository)
1515
self._fallback_repositories.append(repository)
1516
# If self._real_repository was parameterised already (e.g. because a
1517
# _real_branch had its get_stacked_on_url method called), then the
1518
# repository to be added may already be in the _real_repositories list.
1519
if self._real_repository is not None:
1520
fallback_locations = [repo.user_url for repo in
1521
self._real_repository._fallback_repositories]
1522
if repository.user_url not in fallback_locations:
1523
self._real_repository.add_fallback_repository(repository)
1525
def _check_fallback_repository(self, repository):
1526
"""Check that this repository can fallback to repository safely.
1528
Raise an error if not.
1530
:param repository: A repository to fallback to.
1532
return _mod_repository.InterRepository._assert_same_model(
1535
def add_inventory(self, revid, inv, parents):
1537
return self._real_repository.add_inventory(revid, inv, parents)
1539
def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
1540
parents, basis_inv=None, propagate_caches=False):
1542
return self._real_repository.add_inventory_by_delta(basis_revision_id,
1543
delta, new_revision_id, parents, basis_inv=basis_inv,
1544
propagate_caches=propagate_caches)
1546
def add_revision(self, rev_id, rev, inv=None, config=None):
1548
return self._real_repository.add_revision(
1549
rev_id, rev, inv=inv, config=config)
1552
def get_inventory(self, revision_id):
1554
return self._real_repository.get_inventory(revision_id)
1556
def iter_inventories(self, revision_ids, ordering=None):
1558
return self._real_repository.iter_inventories(revision_ids, ordering)
1561
def get_revision(self, revision_id):
1563
return self._real_repository.get_revision(revision_id)
1565
def get_transaction(self):
1567
return self._real_repository.get_transaction()
1570
def clone(self, a_bzrdir, revision_id=None):
1572
return self._real_repository.clone(a_bzrdir, revision_id=revision_id)
1574
def make_working_trees(self):
1575
"""See Repository.make_working_trees"""
1577
return self._real_repository.make_working_trees()
1579
def refresh_data(self):
1580
"""Re-read any data needed to synchronise with disk.
1582
This method is intended to be called after another repository instance
1583
(such as one used by a smart server) has inserted data into the
1584
repository. On all repositories this will work outside of write groups.
1585
Some repository formats (pack and newer for bzrlib native formats)
1586
support refresh_data inside write groups. If called inside a write
1587
group on a repository that does not support refreshing in a write group
1588
IsInWriteGroupError will be raised.
1590
if self._real_repository is not None:
1591
self._real_repository.refresh_data()
1593
def revision_ids_to_search_result(self, result_set):
1594
"""Convert a set of revision ids to a graph SearchResult."""
1595
result_parents = set()
1596
for parents in self.get_graph().get_parent_map(
1597
result_set).itervalues():
1598
result_parents.update(parents)
1599
included_keys = result_set.intersection(result_parents)
1600
start_keys = result_set.difference(included_keys)
1601
exclude_keys = result_parents.difference(result_set)
1602
result = graph.SearchResult(start_keys, exclude_keys,
1603
len(result_set), result_set)
1607
def search_missing_revision_ids(self, other,
1608
revision_id=symbol_versioning.DEPRECATED_PARAMETER,
1609
find_ghosts=True, revision_ids=None, if_present_ids=None,
1611
"""Return the revision ids that other has that this does not.
1613
These are returned in topological order.
1615
revision_id: only return revision ids included by revision_id.
1617
if symbol_versioning.deprecated_passed(revision_id):
1618
symbol_versioning.warn(
1619
'search_missing_revision_ids(revision_id=...) was '
1620
'deprecated in 2.4. Use revision_ids=[...] instead.',
1621
DeprecationWarning, stacklevel=2)
1622
if revision_ids is not None:
1623
raise AssertionError(
1624
'revision_ids is mutually exclusive with revision_id')
1625
if revision_id is not None:
1626
revision_ids = [revision_id]
1627
inter_repo = _mod_repository.InterRepository.get(other, self)
1628
return inter_repo.search_missing_revision_ids(
1629
find_ghosts=find_ghosts, revision_ids=revision_ids,
1630
if_present_ids=if_present_ids, limit=limit)
1632
def fetch(self, source, revision_id=None, find_ghosts=False,
1634
# No base implementation to use as RemoteRepository is not a subclass
1635
# of Repository; so this is a copy of Repository.fetch().
1636
if fetch_spec is not None and revision_id is not None:
1637
raise AssertionError(
1638
"fetch_spec and revision_id are mutually exclusive.")
1639
if self.is_in_write_group():
1640
raise errors.InternalBzrError(
1641
"May not fetch while in a write group.")
1642
# fast path same-url fetch operations
1643
if (self.has_same_location(source)
1644
and fetch_spec is None
1645
and self._has_same_fallbacks(source)):
1646
# check that last_revision is in 'from' and then return a
1648
if (revision_id is not None and
1649
not _mod_revision.is_null(revision_id)):
1650
self.get_revision(revision_id)
1652
# if there is no specific appropriate InterRepository, this will get
1653
# the InterRepository base class, which raises an
1654
# IncompatibleRepositories when asked to fetch.
1655
inter = _mod_repository.InterRepository.get(source, self)
1656
return inter.fetch(revision_id=revision_id,
1657
find_ghosts=find_ghosts, fetch_spec=fetch_spec)
1659
def create_bundle(self, target, base, fileobj, format=None):
1661
self._real_repository.create_bundle(target, base, fileobj, format)
1664
def get_ancestry(self, revision_id, topo_sorted=True):
1666
return self._real_repository.get_ancestry(revision_id, topo_sorted)
1668
def fileids_altered_by_revision_ids(self, revision_ids):
1670
return self._real_repository.fileids_altered_by_revision_ids(revision_ids)
1672
def _get_versioned_file_checker(self, revisions, revision_versions_cache):
1674
return self._real_repository._get_versioned_file_checker(
1675
revisions, revision_versions_cache)
1677
def iter_files_bytes(self, desired_files):
1678
"""See Repository.iter_file_bytes.
1681
return self._real_repository.iter_files_bytes(desired_files)
1683
def get_parent_map(self, revision_ids):
1684
"""See bzrlib.Graph.get_parent_map()."""
1685
return self._make_parents_provider().get_parent_map(revision_ids)
1687
def _get_parent_map_rpc(self, keys):
1688
"""Helper for get_parent_map that performs the RPC."""
1689
medium = self._client._medium
1690
if medium._is_remote_before((1, 2)):
1691
# We already found out that the server can't understand
1692
# Repository.get_parent_map requests, so just fetch the whole
1695
# Note that this reads the whole graph, when only some keys are
1696
# wanted. On this old server there's no way (?) to get them all
1697
# in one go, and the user probably will have seen a warning about
1698
# the server being old anyhow.
1699
rg = self._get_revision_graph(None)
1700
# There is an API discrepancy between get_parent_map and
1701
# get_revision_graph. Specifically, a "key:()" pair in
1702
# get_revision_graph just means a node has no parents. For
1703
# "get_parent_map" it means the node is a ghost. So fix up the
1704
# graph to correct this.
1705
# https://bugs.launchpad.net/bzr/+bug/214894
1706
# There is one other "bug" which is that ghosts in
1707
# get_revision_graph() are not returned at all. But we won't worry
1708
# about that for now.
1709
for node_id, parent_ids in rg.iteritems():
1710
if parent_ids == ():
1711
rg[node_id] = (NULL_REVISION,)
1712
rg[NULL_REVISION] = ()
1717
raise ValueError('get_parent_map(None) is not valid')
1718
if NULL_REVISION in keys:
1719
keys.discard(NULL_REVISION)
1720
found_parents = {NULL_REVISION:()}
1722
return found_parents
1725
# TODO(Needs analysis): We could assume that the keys being requested
1726
# from get_parent_map are in a breadth first search, so typically they
1727
# will all be depth N from some common parent, and we don't have to
1728
# have the server iterate from the root parent, but rather from the
1729
# keys we're searching; and just tell the server the keyspace we
1730
# already have; but this may be more traffic again.
1732
# Transform self._parents_map into a search request recipe.
1733
# TODO: Manage this incrementally to avoid covering the same path
1734
# repeatedly. (The server will have to on each request, but the less
1735
# work done the better).
1737
# Negative caching notes:
1738
# new server sends missing when a request including the revid
1739
# 'include-missing:' is present in the request.
1740
# missing keys are serialised as missing:X, and we then call
1741
# provider.note_missing(X) for-all X
1742
parents_map = self._unstacked_provider.get_cached_map()
1743
if parents_map is None:
1744
# Repository is not locked, so there's no cache.
1746
# start_set is all the keys in the cache
1747
start_set = set(parents_map)
1748
# result set is all the references to keys in the cache
1749
result_parents = set()
1750
for parents in parents_map.itervalues():
1751
result_parents.update(parents)
1752
stop_keys = result_parents.difference(start_set)
1753
# We don't need to send ghosts back to the server as a position to
1755
stop_keys.difference_update(self._unstacked_provider.missing_keys)
1756
key_count = len(parents_map)
1757
if (NULL_REVISION in result_parents
1758
and NULL_REVISION in self._unstacked_provider.missing_keys):
1759
# If we pruned NULL_REVISION from the stop_keys because it's also
1760
# in our cache of "missing" keys we need to increment our key count
1761
# by 1, because the reconsitituted SearchResult on the server will
1762
# still consider NULL_REVISION to be an included key.
1764
included_keys = start_set.intersection(result_parents)
1765
start_set.difference_update(included_keys)
1766
recipe = ('manual', start_set, stop_keys, key_count)
1767
body = self._serialise_search_recipe(recipe)
1768
path = self.bzrdir._path_for_remote_call(self._client)
1770
if type(key) is not str:
1772
"key %r not a plain string" % (key,))
1773
verb = 'Repository.get_parent_map'
1774
args = (path, 'include-missing:') + tuple(keys)
1776
response = self._call_with_body_bytes_expecting_body(
1778
except errors.UnknownSmartMethod:
1779
# Server does not support this method, so get the whole graph.
1780
# Worse, we have to force a disconnection, because the server now
1781
# doesn't realise it has a body on the wire to consume, so the
1782
# only way to recover is to abandon the connection.
1784
'Server is too old for fast get_parent_map, reconnecting. '
1785
'(Upgrade the server to Bazaar 1.2 to avoid this)')
1787
# To avoid having to disconnect repeatedly, we keep track of the
1788
# fact the server doesn't understand remote methods added in 1.2.
1789
medium._remember_remote_is_before((1, 2))
1790
# Recurse just once and we should use the fallback code.
1791
return self._get_parent_map_rpc(keys)
1792
response_tuple, response_handler = response
1793
if response_tuple[0] not in ['ok']:
1794
response_handler.cancel_read_body()
1795
raise errors.UnexpectedSmartServerResponse(response_tuple)
1796
if response_tuple[0] == 'ok':
1797
coded = bz2.decompress(response_handler.read_body_bytes())
1799
# no revisions found
1801
lines = coded.split('\n')
1804
d = tuple(line.split())
1806
revision_graph[d[0]] = d[1:]
1809
if d[0].startswith('missing:'):
1811
self._unstacked_provider.note_missing_key(revid)
1813
# no parents - so give the Graph result
1815
revision_graph[d[0]] = (NULL_REVISION,)
1816
return revision_graph
1819
def get_signature_text(self, revision_id):
1821
return self._real_repository.get_signature_text(revision_id)
1824
def _get_inventory_xml(self, revision_id):
1826
return self._real_repository._get_inventory_xml(revision_id)
1828
def reconcile(self, other=None, thorough=False):
1830
return self._real_repository.reconcile(other=other, thorough=thorough)
1832
def all_revision_ids(self):
1834
return self._real_repository.all_revision_ids()
1837
def get_deltas_for_revisions(self, revisions, specific_fileids=None):
1839
return self._real_repository.get_deltas_for_revisions(revisions,
1840
specific_fileids=specific_fileids)
1843
def get_revision_delta(self, revision_id, specific_fileids=None):
1845
return self._real_repository.get_revision_delta(revision_id,
1846
specific_fileids=specific_fileids)
1849
def revision_trees(self, revision_ids):
1851
return self._real_repository.revision_trees(revision_ids)
1854
def get_revision_reconcile(self, revision_id):
1856
return self._real_repository.get_revision_reconcile(revision_id)
1859
def check(self, revision_ids=None, callback_refs=None, check_repo=True):
1861
return self._real_repository.check(revision_ids=revision_ids,
1862
callback_refs=callback_refs, check_repo=check_repo)
1864
def copy_content_into(self, destination, revision_id=None):
1866
return self._real_repository.copy_content_into(
1867
destination, revision_id=revision_id)
1869
def _copy_repository_tarball(self, to_bzrdir, revision_id=None):
1870
# get a tarball of the remote repository, and copy from that into the
1872
from bzrlib import osutils
1874
# TODO: Maybe a progress bar while streaming the tarball?
1875
note("Copying repository content as tarball...")
1876
tar_file = self._get_tarball('bz2')
1877
if tar_file is None:
1879
destination = to_bzrdir.create_repository()
1881
tar = tarfile.open('repository', fileobj=tar_file,
1883
tmpdir = osutils.mkdtemp()
1885
_extract_tar(tar, tmpdir)
1886
tmp_bzrdir = _mod_bzrdir.BzrDir.open(tmpdir)
1887
tmp_repo = tmp_bzrdir.open_repository()
1888
tmp_repo.copy_content_into(destination, revision_id)
1890
osutils.rmtree(tmpdir)
1894
# TODO: Suggestion from john: using external tar is much faster than
1895
# python's tarfile library, but it may not work on windows.
1898
def inventories(self):
1899
"""Decorate the real repository for now.
1901
In the long term a full blown network facility is needed to
1902
avoid creating a real repository object locally.
1905
return self._real_repository.inventories
1908
def pack(self, hint=None, clean_obsolete_packs=False):
1909
"""Compress the data within the repository.
1911
This is not currently implemented within the smart server.
1914
return self._real_repository.pack(hint=hint, clean_obsolete_packs=clean_obsolete_packs)
1917
def revisions(self):
1918
"""Decorate the real repository for now.
1920
In the short term this should become a real object to intercept graph
1923
In the long term a full blown network facility is needed.
1926
return self._real_repository.revisions
1928
def set_make_working_trees(self, new_value):
1930
new_value_str = "True"
1932
new_value_str = "False"
1933
path = self.bzrdir._path_for_remote_call(self._client)
1935
response = self._call(
1936
'Repository.set_make_working_trees', path, new_value_str)
1937
except errors.UnknownSmartMethod:
1939
self._real_repository.set_make_working_trees(new_value)
1941
if response[0] != 'ok':
1942
raise errors.UnexpectedSmartServerResponse(response)
1945
def signatures(self):
1946
"""Decorate the real repository for now.
1948
In the long term a full blown network facility is needed to avoid
1949
creating a real repository object locally.
1952
return self._real_repository.signatures
1955
def sign_revision(self, revision_id, gpg_strategy):
1957
return self._real_repository.sign_revision(revision_id, gpg_strategy)
1961
"""Decorate the real repository for now.
1963
In the long term a full blown network facility is needed to avoid
1964
creating a real repository object locally.
1967
return self._real_repository.texts
1970
def get_revisions(self, revision_ids):
1972
return self._real_repository.get_revisions(revision_ids)
1974
def supports_rich_root(self):
1975
return self._format.rich_root_data
1977
def iter_reverse_revision_history(self, revision_id):
1979
return self._real_repository.iter_reverse_revision_history(revision_id)
1982
def _serializer(self):
1983
return self._format._serializer
1985
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1987
return self._real_repository.store_revision_signature(
1988
gpg_strategy, plaintext, revision_id)
1990
def add_signature_text(self, revision_id, signature):
1992
return self._real_repository.add_signature_text(revision_id, signature)
1994
def has_signature_for_revision_id(self, revision_id):
1996
return self._real_repository.has_signature_for_revision_id(revision_id)
1998
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
2000
return self._real_repository.item_keys_introduced_by(revision_ids,
2001
_files_pb=_files_pb)
2003
def _find_inconsistent_revision_parents(self, revisions_iterator=None):
2005
return self._real_repository._find_inconsistent_revision_parents(
2008
def _check_for_inconsistent_revision_parents(self):
2010
return self._real_repository._check_for_inconsistent_revision_parents()
2012
def _make_parents_provider(self, other=None):
2013
providers = [self._unstacked_provider]
2014
if other is not None:
2015
providers.insert(0, other)
2016
return graph.StackedParentsProvider(_LazyListJoin(
2017
providers, self._fallback_repositories))
2019
def _serialise_search_recipe(self, recipe):
2020
"""Serialise a graph search recipe.
2022
:param recipe: A search recipe (start, stop, count).
2023
:return: Serialised bytes.
2025
start_keys = ' '.join(recipe[1])
2026
stop_keys = ' '.join(recipe[2])
2027
count = str(recipe[3])
2028
return '\n'.join((start_keys, stop_keys, count))
2030
def _serialise_search_result(self, search_result):
2031
parts = search_result.get_network_struct()
2032
return '\n'.join(parts)
2035
path = self.bzrdir._path_for_remote_call(self._client)
2037
response = self._call('PackRepository.autopack', path)
2038
except errors.UnknownSmartMethod:
2040
self._real_repository._pack_collection.autopack()
2043
if response[0] != 'ok':
2044
raise errors.UnexpectedSmartServerResponse(response)
2047
class RemoteStreamSink(vf_repository.StreamSink):
2049
def _insert_real(self, stream, src_format, resume_tokens):
2050
self.target_repo._ensure_real()
2051
sink = self.target_repo._real_repository._get_sink()
2052
result = sink.insert_stream(stream, src_format, resume_tokens)
2054
self.target_repo.autopack()
2057
def insert_stream(self, stream, src_format, resume_tokens):
2058
target = self.target_repo
2059
target._unstacked_provider.missing_keys.clear()
2060
candidate_calls = [('Repository.insert_stream_1.19', (1, 19))]
2061
if target._lock_token:
2062
candidate_calls.append(('Repository.insert_stream_locked', (1, 14)))
2063
lock_args = (target._lock_token or '',)
2065
candidate_calls.append(('Repository.insert_stream', (1, 13)))
2067
client = target._client
2068
medium = client._medium
2069
path = target.bzrdir._path_for_remote_call(client)
2070
# Probe for the verb to use with an empty stream before sending the
2071
# real stream to it. We do this both to avoid the risk of sending a
2072
# large request that is then rejected, and because we don't want to
2073
# implement a way to buffer, rewind, or restart the stream.
2075
for verb, required_version in candidate_calls:
2076
if medium._is_remote_before(required_version):
2079
# We've already done the probing (and set _is_remote_before) on
2080
# a previous insert.
2083
byte_stream = smart_repo._stream_to_byte_stream([], src_format)
2085
response = client.call_with_body_stream(
2086
(verb, path, '') + lock_args, byte_stream)
2087
except errors.UnknownSmartMethod:
2088
medium._remember_remote_is_before(required_version)
2094
return self._insert_real(stream, src_format, resume_tokens)
2095
self._last_inv_record = None
2096
self._last_substream = None
2097
if required_version < (1, 19):
2098
# Remote side doesn't support inventory deltas. Wrap the stream to
2099
# make sure we don't send any. If the stream contains inventory
2100
# deltas we'll interrupt the smart insert_stream request and
2102
stream = self._stop_stream_if_inventory_delta(stream)
2103
byte_stream = smart_repo._stream_to_byte_stream(
2105
resume_tokens = ' '.join(resume_tokens)
2106
response = client.call_with_body_stream(
2107
(verb, path, resume_tokens) + lock_args, byte_stream)
2108
if response[0][0] not in ('ok', 'missing-basis'):
2109
raise errors.UnexpectedSmartServerResponse(response)
2110
if self._last_substream is not None:
2111
# The stream included an inventory-delta record, but the remote
2112
# side isn't new enough to support them. So we need to send the
2113
# rest of the stream via VFS.
2114
self.target_repo.refresh_data()
2115
return self._resume_stream_with_vfs(response, src_format)
2116
if response[0][0] == 'missing-basis':
2117
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
2118
resume_tokens = tokens
2119
return resume_tokens, set(missing_keys)
2121
self.target_repo.refresh_data()
2124
def _resume_stream_with_vfs(self, response, src_format):
2125
"""Resume sending a stream via VFS, first resending the record and
2126
substream that couldn't be sent via an insert_stream verb.
2128
if response[0][0] == 'missing-basis':
2129
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
2130
# Ignore missing_keys, we haven't finished inserting yet
2133
def resume_substream():
2134
# Yield the substream that was interrupted.
2135
for record in self._last_substream:
2137
self._last_substream = None
2138
def resume_stream():
2139
# Finish sending the interrupted substream
2140
yield ('inventory-deltas', resume_substream())
2141
# Then simply continue sending the rest of the stream.
2142
for substream_kind, substream in self._last_stream:
2143
yield substream_kind, substream
2144
return self._insert_real(resume_stream(), src_format, tokens)
2146
def _stop_stream_if_inventory_delta(self, stream):
2147
"""Normally this just lets the original stream pass-through unchanged.
2149
However if any 'inventory-deltas' substream occurs it will stop
2150
streaming, and store the interrupted substream and stream in
2151
self._last_substream and self._last_stream so that the stream can be
2152
resumed by _resume_stream_with_vfs.
2155
stream_iter = iter(stream)
2156
for substream_kind, substream in stream_iter:
2157
if substream_kind == 'inventory-deltas':
2158
self._last_substream = substream
2159
self._last_stream = stream_iter
2162
yield substream_kind, substream
2165
class RemoteStreamSource(vf_repository.StreamSource):
2166
"""Stream data from a remote server."""
2168
def get_stream(self, search):
2169
if (self.from_repository._fallback_repositories and
2170
self.to_format._fetch_order == 'topological'):
2171
return self._real_stream(self.from_repository, search)
2174
repos = [self.from_repository]
2180
repos.extend(repo._fallback_repositories)
2181
sources.append(repo)
2182
return self.missing_parents_chain(search, sources)
2184
def get_stream_for_missing_keys(self, missing_keys):
2185
self.from_repository._ensure_real()
2186
real_repo = self.from_repository._real_repository
2187
real_source = real_repo._get_source(self.to_format)
2188
return real_source.get_stream_for_missing_keys(missing_keys)
2190
def _real_stream(self, repo, search):
2191
"""Get a stream for search from repo.
2193
This never called RemoteStreamSource.get_stream, and is a heler
2194
for RemoteStreamSource._get_stream to allow getting a stream
2195
reliably whether fallback back because of old servers or trying
2196
to stream from a non-RemoteRepository (which the stacked support
2199
source = repo._get_source(self.to_format)
2200
if isinstance(source, RemoteStreamSource):
2202
source = repo._real_repository._get_source(self.to_format)
2203
return source.get_stream(search)
2205
def _get_stream(self, repo, search):
2206
"""Core worker to get a stream from repo for search.
2208
This is used by both get_stream and the stacking support logic. It
2209
deliberately gets a stream for repo which does not need to be
2210
self.from_repository. In the event that repo is not Remote, or
2211
cannot do a smart stream, a fallback is made to the generic
2212
repository._get_stream() interface, via self._real_stream.
2214
In the event of stacking, streams from _get_stream will not
2215
contain all the data for search - this is normal (see get_stream).
2217
:param repo: A repository.
2218
:param search: A search.
2220
# Fallbacks may be non-smart
2221
if not isinstance(repo, RemoteRepository):
2222
return self._real_stream(repo, search)
2223
client = repo._client
2224
medium = client._medium
2225
path = repo.bzrdir._path_for_remote_call(client)
2226
search_bytes = repo._serialise_search_result(search)
2227
args = (path, self.to_format.network_name())
2229
('Repository.get_stream_1.19', (1, 19)),
2230
('Repository.get_stream', (1, 13))]
2233
for verb, version in candidate_verbs:
2234
if medium._is_remote_before(version):
2237
response = repo._call_with_body_bytes_expecting_body(
2238
verb, args, search_bytes)
2239
except errors.UnknownSmartMethod:
2240
medium._remember_remote_is_before(version)
2241
except errors.UnknownErrorFromSmartServer, e:
2242
if isinstance(search, graph.EverythingResult):
2243
error_verb = e.error_from_smart_server.error_verb
2244
if error_verb == 'BadSearch':
2245
# Pre-2.4 servers don't support this sort of search.
2246
# XXX: perhaps falling back to VFS on BadSearch is a
2247
# good idea in general? It might provide a little bit
2248
# of protection against client-side bugs.
2249
medium._remember_remote_is_before((2, 4))
2253
response_tuple, response_handler = response
2257
return self._real_stream(repo, search)
2258
if response_tuple[0] != 'ok':
2259
raise errors.UnexpectedSmartServerResponse(response_tuple)
2260
byte_stream = response_handler.read_streamed_body()
2261
src_format, stream = smart_repo._byte_stream_to_stream(byte_stream,
2262
self._record_counter)
2263
if src_format.network_name() != repo._format.network_name():
2264
raise AssertionError(
2265
"Mismatched RemoteRepository and stream src %r, %r" % (
2266
src_format.network_name(), repo._format.network_name()))
2269
def missing_parents_chain(self, search, sources):
2270
"""Chain multiple streams together to handle stacking.
2272
:param search: The overall search to satisfy with streams.
2273
:param sources: A list of Repository objects to query.
2275
self.from_serialiser = self.from_repository._format._serializer
2276
self.seen_revs = set()
2277
self.referenced_revs = set()
2278
# If there are heads in the search, or the key count is > 0, we are not
2280
while not search.is_empty() and len(sources) > 1:
2281
source = sources.pop(0)
2282
stream = self._get_stream(source, search)
2283
for kind, substream in stream:
2284
if kind != 'revisions':
2285
yield kind, substream
2287
yield kind, self.missing_parents_rev_handler(substream)
2288
search = search.refine(self.seen_revs, self.referenced_revs)
2289
self.seen_revs = set()
2290
self.referenced_revs = set()
2291
if not search.is_empty():
2292
for kind, stream in self._get_stream(sources[0], search):
2295
def missing_parents_rev_handler(self, substream):
2296
for content in substream:
2297
revision_bytes = content.get_bytes_as('fulltext')
2298
revision = self.from_serialiser.read_revision_from_string(
2300
self.seen_revs.add(content.key[-1])
2301
self.referenced_revs.update(revision.parent_ids)
2305
class RemoteBranchLockableFiles(LockableFiles):
2306
"""A 'LockableFiles' implementation that talks to a smart server.
2308
This is not a public interface class.
2311
def __init__(self, bzrdir, _client):
2312
self.bzrdir = bzrdir
2313
self._client = _client
2314
self._need_find_modes = True
2315
LockableFiles.__init__(
2316
self, bzrdir.get_branch_transport(None),
2317
'lock', lockdir.LockDir)
2319
def _find_modes(self):
2320
# RemoteBranches don't let the client set the mode of control files.
2321
self._dir_mode = None
2322
self._file_mode = None
2325
class RemoteBranchFormat(branch.BranchFormat):
2327
def __init__(self, network_name=None):
2328
super(RemoteBranchFormat, self).__init__()
2329
self._matchingbzrdir = RemoteBzrDirFormat()
2330
self._matchingbzrdir.set_branch_format(self)
2331
self._custom_format = None
2332
self._network_name = network_name
2334
def __eq__(self, other):
2335
return (isinstance(other, RemoteBranchFormat) and
2336
self.__dict__ == other.__dict__)
2338
def _ensure_real(self):
2339
if self._custom_format is None:
2340
self._custom_format = branch.network_format_registry.get(
2343
def get_format_description(self):
2345
return 'Remote: ' + self._custom_format.get_format_description()
2347
def network_name(self):
2348
return self._network_name
2350
def open(self, a_bzrdir, name=None, ignore_fallbacks=False):
2351
return a_bzrdir.open_branch(name=name,
2352
ignore_fallbacks=ignore_fallbacks)
2354
def _vfs_initialize(self, a_bzrdir, name):
2355
# Initialisation when using a local bzrdir object, or a non-vfs init
2356
# method is not available on the server.
2357
# self._custom_format is always set - the start of initialize ensures
2359
if isinstance(a_bzrdir, RemoteBzrDir):
2360
a_bzrdir._ensure_real()
2361
result = self._custom_format.initialize(a_bzrdir._real_bzrdir,
2364
# We assume the bzrdir is parameterised; it may not be.
2365
result = self._custom_format.initialize(a_bzrdir, name)
2366
if (isinstance(a_bzrdir, RemoteBzrDir) and
2367
not isinstance(result, RemoteBranch)):
2368
result = RemoteBranch(a_bzrdir, a_bzrdir.find_repository(), result,
2372
def initialize(self, a_bzrdir, name=None, repository=None):
2373
# 1) get the network name to use.
2374
if self._custom_format:
2375
network_name = self._custom_format.network_name()
2377
# Select the current bzrlib default and ask for that.
2378
reference_bzrdir_format = _mod_bzrdir.format_registry.get('default')()
2379
reference_format = reference_bzrdir_format.get_branch_format()
2380
self._custom_format = reference_format
2381
network_name = reference_format.network_name()
2382
# Being asked to create on a non RemoteBzrDir:
2383
if not isinstance(a_bzrdir, RemoteBzrDir):
2384
return self._vfs_initialize(a_bzrdir, name=name)
2385
medium = a_bzrdir._client._medium
2386
if medium._is_remote_before((1, 13)):
2387
return self._vfs_initialize(a_bzrdir, name=name)
2388
# Creating on a remote bzr dir.
2389
# 2) try direct creation via RPC
2390
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
2391
if name is not None:
2392
# XXX JRV20100304: Support creating colocated branches
2393
raise errors.NoColocatedBranchSupport(self)
2394
verb = 'BzrDir.create_branch'
2396
response = a_bzrdir._call(verb, path, network_name)
2397
except errors.UnknownSmartMethod:
2398
# Fallback - use vfs methods
2399
medium._remember_remote_is_before((1, 13))
2400
return self._vfs_initialize(a_bzrdir, name=name)
2401
if response[0] != 'ok':
2402
raise errors.UnexpectedSmartServerResponse(response)
2403
# Turn the response into a RemoteRepository object.
2404
format = RemoteBranchFormat(network_name=response[1])
2405
repo_format = response_tuple_to_repo_format(response[3:])
2406
repo_path = response[2]
2407
if repository is not None:
2408
remote_repo_url = urlutils.join(a_bzrdir.user_url, repo_path)
2409
url_diff = urlutils.relative_url(repository.user_url,
2412
raise AssertionError(
2413
'repository.user_url %r does not match URL from server '
2414
'response (%r + %r)'
2415
% (repository.user_url, a_bzrdir.user_url, repo_path))
2416
remote_repo = repository
2419
repo_bzrdir = a_bzrdir
2421
repo_bzrdir = RemoteBzrDir(
2422
a_bzrdir.root_transport.clone(repo_path), a_bzrdir._format,
2424
remote_repo = RemoteRepository(repo_bzrdir, repo_format)
2425
remote_branch = RemoteBranch(a_bzrdir, remote_repo,
2426
format=format, setup_stacking=False, name=name)
2427
# XXX: We know this is a new branch, so it must have revno 0, revid
2428
# NULL_REVISION. Creating the branch locked would make this be unable
2429
# to be wrong; here its simply very unlikely to be wrong. RBC 20090225
2430
remote_branch._last_revision_info_cache = 0, NULL_REVISION
2431
return remote_branch
2433
def make_tags(self, branch):
2435
return self._custom_format.make_tags(branch)
2437
def supports_tags(self):
2438
# Remote branches might support tags, but we won't know until we
2439
# access the real remote branch.
2441
return self._custom_format.supports_tags()
2443
def supports_stacking(self):
2445
return self._custom_format.supports_stacking()
2447
def supports_set_append_revisions_only(self):
2449
return self._custom_format.supports_set_append_revisions_only()
2451
def _use_default_local_heads_to_fetch(self):
2452
# If the branch format is a metadir format *and* its heads_to_fetch
2453
# implementation is not overridden vs the base class, we can use the
2454
# base class logic rather than use the heads_to_fetch RPC. This is
2455
# usually cheaper in terms of net round trips, as the last-revision and
2456
# tags info fetched is cached and would be fetched anyway.
2458
if isinstance(self._custom_format, branch.BranchFormatMetadir):
2459
branch_class = self._custom_format._branch_class()
2460
heads_to_fetch_impl = branch_class.heads_to_fetch.im_func
2461
if heads_to_fetch_impl is branch.Branch.heads_to_fetch.im_func:
2465
class RemoteBranch(branch.Branch, _RpcHelper, lock._RelockDebugMixin):
2466
"""Branch stored on a server accessed by HPSS RPC.
2468
At the moment most operations are mapped down to simple file operations.
2471
def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
2472
_client=None, format=None, setup_stacking=True, name=None):
2473
"""Create a RemoteBranch instance.
2475
:param real_branch: An optional local implementation of the branch
2476
format, usually accessing the data via the VFS.
2477
:param _client: Private parameter for testing.
2478
:param format: A RemoteBranchFormat object, None to create one
2479
automatically. If supplied it should have a network_name already
2481
:param setup_stacking: If True make an RPC call to determine the
2482
stacked (or not) status of the branch. If False assume the branch
2484
:param name: Colocated branch name
2486
# We intentionally don't call the parent class's __init__, because it
2487
# will try to assign to self.tags, which is a property in this subclass.
2488
# And the parent's __init__ doesn't do much anyway.
2489
self.bzrdir = remote_bzrdir
2490
if _client is not None:
2491
self._client = _client
2493
self._client = remote_bzrdir._client
2494
self.repository = remote_repository
2495
if real_branch is not None:
2496
self._real_branch = real_branch
2497
# Give the remote repository the matching real repo.
2498
real_repo = self._real_branch.repository
2499
if isinstance(real_repo, RemoteRepository):
2500
real_repo._ensure_real()
2501
real_repo = real_repo._real_repository
2502
self.repository._set_real_repository(real_repo)
2503
# Give the branch the remote repository to let fast-pathing happen.
2504
self._real_branch.repository = self.repository
2506
self._real_branch = None
2507
# Fill out expected attributes of branch for bzrlib API users.
2508
self._clear_cached_state()
2509
# TODO: deprecate self.base in favor of user_url
2510
self.base = self.bzrdir.user_url
2512
self._control_files = None
2513
self._lock_mode = None
2514
self._lock_token = None
2515
self._repo_lock_token = None
2516
self._lock_count = 0
2517
self._leave_lock = False
2518
# Setup a format: note that we cannot call _ensure_real until all the
2519
# attributes above are set: This code cannot be moved higher up in this
2522
self._format = RemoteBranchFormat()
2523
if real_branch is not None:
2524
self._format._network_name = \
2525
self._real_branch._format.network_name()
2527
self._format = format
2528
# when we do _ensure_real we may need to pass ignore_fallbacks to the
2529
# branch.open_branch method.
2530
self._real_ignore_fallbacks = not setup_stacking
2531
if not self._format._network_name:
2532
# Did not get from open_branchV2 - old server.
2534
self._format._network_name = \
2535
self._real_branch._format.network_name()
2536
self.tags = self._format.make_tags(self)
2537
# The base class init is not called, so we duplicate this:
2538
hooks = branch.Branch.hooks['open']
2541
self._is_stacked = False
2543
self._setup_stacking()
2545
def _setup_stacking(self):
2546
# configure stacking into the remote repository, by reading it from
2549
fallback_url = self.get_stacked_on_url()
2550
except (errors.NotStacked, errors.UnstackableBranchFormat,
2551
errors.UnstackableRepositoryFormat), e:
2553
self._is_stacked = True
2554
self._activate_fallback_location(fallback_url)
2556
def _get_config(self):
2557
return RemoteBranchConfig(self)
2559
def _get_real_transport(self):
2560
# if we try vfs access, return the real branch's vfs transport
2562
return self._real_branch._transport
2564
_transport = property(_get_real_transport)
2567
return "%s(%s)" % (self.__class__.__name__, self.base)
2571
def _ensure_real(self):
2572
"""Ensure that there is a _real_branch set.
2574
Used before calls to self._real_branch.
2576
if self._real_branch is None:
2577
if not vfs.vfs_enabled():
2578
raise AssertionError('smart server vfs must be enabled '
2579
'to use vfs implementation')
2580
self.bzrdir._ensure_real()
2581
self._real_branch = self.bzrdir._real_bzrdir.open_branch(
2582
ignore_fallbacks=self._real_ignore_fallbacks, name=self._name)
2583
if self.repository._real_repository is None:
2584
# Give the remote repository the matching real repo.
2585
real_repo = self._real_branch.repository
2586
if isinstance(real_repo, RemoteRepository):
2587
real_repo._ensure_real()
2588
real_repo = real_repo._real_repository
2589
self.repository._set_real_repository(real_repo)
2590
# Give the real branch the remote repository to let fast-pathing
2592
self._real_branch.repository = self.repository
2593
if self._lock_mode == 'r':
2594
self._real_branch.lock_read()
2595
elif self._lock_mode == 'w':
2596
self._real_branch.lock_write(token=self._lock_token)
2598
def _translate_error(self, err, **context):
2599
self.repository._translate_error(err, branch=self, **context)
2601
def _clear_cached_state(self):
2602
super(RemoteBranch, self)._clear_cached_state()
2603
if self._real_branch is not None:
2604
self._real_branch._clear_cached_state()
2606
def _clear_cached_state_of_remote_branch_only(self):
2607
"""Like _clear_cached_state, but doesn't clear the cache of
2610
This is useful when falling back to calling a method of
2611
self._real_branch that changes state. In that case the underlying
2612
branch changes, so we need to invalidate this RemoteBranch's cache of
2613
it. However, there's no need to invalidate the _real_branch's cache
2614
too, in fact doing so might harm performance.
2616
super(RemoteBranch, self)._clear_cached_state()
2619
def control_files(self):
2620
# Defer actually creating RemoteBranchLockableFiles until its needed,
2621
# because it triggers an _ensure_real that we otherwise might not need.
2622
if self._control_files is None:
2623
self._control_files = RemoteBranchLockableFiles(
2624
self.bzrdir, self._client)
2625
return self._control_files
2627
def _get_checkout_format(self):
2629
return self._real_branch._get_checkout_format()
2631
def get_physical_lock_status(self):
2632
"""See Branch.get_physical_lock_status()."""
2633
# should be an API call to the server, as branches must be lockable.
2635
return self._real_branch.get_physical_lock_status()
2637
def get_stacked_on_url(self):
2638
"""Get the URL this branch is stacked against.
2640
:raises NotStacked: If the branch is not stacked.
2641
:raises UnstackableBranchFormat: If the branch does not support
2643
:raises UnstackableRepositoryFormat: If the repository does not support
2647
# there may not be a repository yet, so we can't use
2648
# self._translate_error, so we can't use self._call either.
2649
response = self._client.call('Branch.get_stacked_on_url',
2650
self._remote_path())
2651
except errors.ErrorFromSmartServer, err:
2652
# there may not be a repository yet, so we can't call through
2653
# its _translate_error
2654
_translate_error(err, branch=self)
2655
except errors.UnknownSmartMethod, err:
2657
return self._real_branch.get_stacked_on_url()
2658
if response[0] != 'ok':
2659
raise errors.UnexpectedSmartServerResponse(response)
2662
def set_stacked_on_url(self, url):
2663
branch.Branch.set_stacked_on_url(self, url)
2665
self._is_stacked = False
2667
self._is_stacked = True
2669
def _vfs_get_tags_bytes(self):
2671
return self._real_branch._get_tags_bytes()
2674
def _get_tags_bytes(self):
2675
if self._tags_bytes is None:
2676
self._tags_bytes = self._get_tags_bytes_via_hpss()
2677
return self._tags_bytes
2679
def _get_tags_bytes_via_hpss(self):
2680
medium = self._client._medium
2681
if medium._is_remote_before((1, 13)):
2682
return self._vfs_get_tags_bytes()
2684
response = self._call('Branch.get_tags_bytes', self._remote_path())
2685
except errors.UnknownSmartMethod:
2686
medium._remember_remote_is_before((1, 13))
2687
return self._vfs_get_tags_bytes()
2690
def _vfs_set_tags_bytes(self, bytes):
2692
return self._real_branch._set_tags_bytes(bytes)
2694
def _set_tags_bytes(self, bytes):
2695
if self.is_locked():
2696
self._tags_bytes = bytes
2697
medium = self._client._medium
2698
if medium._is_remote_before((1, 18)):
2699
self._vfs_set_tags_bytes(bytes)
2703
self._remote_path(), self._lock_token, self._repo_lock_token)
2704
response = self._call_with_body_bytes(
2705
'Branch.set_tags_bytes', args, bytes)
2706
except errors.UnknownSmartMethod:
2707
medium._remember_remote_is_before((1, 18))
2708
self._vfs_set_tags_bytes(bytes)
2710
def lock_read(self):
2711
"""Lock the branch for read operations.
2713
:return: A bzrlib.lock.LogicalLockResult.
2715
self.repository.lock_read()
2716
if not self._lock_mode:
2717
self._note_lock('r')
2718
self._lock_mode = 'r'
2719
self._lock_count = 1
2720
if self._real_branch is not None:
2721
self._real_branch.lock_read()
2723
self._lock_count += 1
2724
return lock.LogicalLockResult(self.unlock)
2726
def _remote_lock_write(self, token):
2728
branch_token = repo_token = ''
2730
branch_token = token
2731
repo_token = self.repository.lock_write().repository_token
2732
self.repository.unlock()
2733
err_context = {'token': token}
2735
response = self._call(
2736
'Branch.lock_write', self._remote_path(), branch_token,
2737
repo_token or '', **err_context)
2738
except errors.LockContention, e:
2739
# The LockContention from the server doesn't have any
2740
# information about the lock_url. We re-raise LockContention
2741
# with valid lock_url.
2742
raise errors.LockContention('(remote lock)',
2743
self.repository.base.split('.bzr/')[0])
2744
if response[0] != 'ok':
2745
raise errors.UnexpectedSmartServerResponse(response)
2746
ok, branch_token, repo_token = response
2747
return branch_token, repo_token
2749
def lock_write(self, token=None):
2750
if not self._lock_mode:
2751
self._note_lock('w')
2752
# Lock the branch and repo in one remote call.
2753
remote_tokens = self._remote_lock_write(token)
2754
self._lock_token, self._repo_lock_token = remote_tokens
2755
if not self._lock_token:
2756
raise SmartProtocolError('Remote server did not return a token!')
2757
# Tell the self.repository object that it is locked.
2758
self.repository.lock_write(
2759
self._repo_lock_token, _skip_rpc=True)
2761
if self._real_branch is not None:
2762
self._real_branch.lock_write(token=self._lock_token)
2763
if token is not None:
2764
self._leave_lock = True
2766
self._leave_lock = False
2767
self._lock_mode = 'w'
2768
self._lock_count = 1
2769
elif self._lock_mode == 'r':
2770
raise errors.ReadOnlyError(self)
2772
if token is not None:
2773
# A token was given to lock_write, and we're relocking, so
2774
# check that the given token actually matches the one we
2776
if token != self._lock_token:
2777
raise errors.TokenMismatch(token, self._lock_token)
2778
self._lock_count += 1
2779
# Re-lock the repository too.
2780
self.repository.lock_write(self._repo_lock_token)
2781
return BranchWriteLockResult(self.unlock, self._lock_token or None)
2783
def _unlock(self, branch_token, repo_token):
2784
err_context = {'token': str((branch_token, repo_token))}
2785
response = self._call(
2786
'Branch.unlock', self._remote_path(), branch_token,
2787
repo_token or '', **err_context)
2788
if response == ('ok',):
2790
raise errors.UnexpectedSmartServerResponse(response)
2792
@only_raises(errors.LockNotHeld, errors.LockBroken)
2795
self._lock_count -= 1
2796
if not self._lock_count:
2797
self._clear_cached_state()
2798
mode = self._lock_mode
2799
self._lock_mode = None
2800
if self._real_branch is not None:
2801
if (not self._leave_lock and mode == 'w' and
2802
self._repo_lock_token):
2803
# If this RemoteBranch will remove the physical lock
2804
# for the repository, make sure the _real_branch
2805
# doesn't do it first. (Because the _real_branch's
2806
# repository is set to be the RemoteRepository.)
2807
self._real_branch.repository.leave_lock_in_place()
2808
self._real_branch.unlock()
2810
# Only write-locked branched need to make a remote method
2811
# call to perform the unlock.
2813
if not self._lock_token:
2814
raise AssertionError('Locked, but no token!')
2815
branch_token = self._lock_token
2816
repo_token = self._repo_lock_token
2817
self._lock_token = None
2818
self._repo_lock_token = None
2819
if not self._leave_lock:
2820
self._unlock(branch_token, repo_token)
2822
self.repository.unlock()
2824
def break_lock(self):
2826
return self._real_branch.break_lock()
2828
def leave_lock_in_place(self):
2829
if not self._lock_token:
2830
raise NotImplementedError(self.leave_lock_in_place)
2831
self._leave_lock = True
2833
def dont_leave_lock_in_place(self):
2834
if not self._lock_token:
2835
raise NotImplementedError(self.dont_leave_lock_in_place)
2836
self._leave_lock = False
2839
def get_rev_id(self, revno, history=None):
2841
return _mod_revision.NULL_REVISION
2842
last_revision_info = self.last_revision_info()
2843
ok, result = self.repository.get_rev_id_for_revno(
2844
revno, last_revision_info)
2847
missing_parent = result[1]
2848
# Either the revision named by the server is missing, or its parent
2849
# is. Call get_parent_map to determine which, so that we report a
2851
parent_map = self.repository.get_parent_map([missing_parent])
2852
if missing_parent in parent_map:
2853
missing_parent = parent_map[missing_parent]
2854
raise errors.RevisionNotPresent(missing_parent, self.repository)
2856
def _read_last_revision_info(self):
2857
response = self._call('Branch.last_revision_info', self._remote_path())
2858
if response[0] != 'ok':
2859
raise SmartProtocolError('unexpected response code %s' % (response,))
2860
revno = int(response[1])
2861
last_revision = response[2]
2862
return (revno, last_revision)
2864
def _gen_revision_history(self):
2865
"""See Branch._gen_revision_history()."""
2866
if self._is_stacked:
2868
return self._real_branch._gen_revision_history()
2869
response_tuple, response_handler = self._call_expecting_body(
2870
'Branch.revision_history', self._remote_path())
2871
if response_tuple[0] != 'ok':
2872
raise errors.UnexpectedSmartServerResponse(response_tuple)
2873
result = response_handler.read_body_bytes().split('\x00')
2878
def _remote_path(self):
2879
return self.bzrdir._path_for_remote_call(self._client)
2881
def _set_last_revision_descendant(self, revision_id, other_branch,
2882
allow_diverged=False, allow_overwrite_descendant=False):
2883
# This performs additional work to meet the hook contract; while its
2884
# undesirable, we have to synthesise the revno to call the hook, and
2885
# not calling the hook is worse as it means changes can't be prevented.
2886
# Having calculated this though, we can't just call into
2887
# set_last_revision_info as a simple call, because there is a set_rh
2888
# hook that some folk may still be using.
2889
old_revno, old_revid = self.last_revision_info()
2890
history = self._lefthand_history(revision_id)
2891
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2892
err_context = {'other_branch': other_branch}
2893
response = self._call('Branch.set_last_revision_ex',
2894
self._remote_path(), self._lock_token, self._repo_lock_token,
2895
revision_id, int(allow_diverged), int(allow_overwrite_descendant),
2897
self._clear_cached_state()
2898
if len(response) != 3 and response[0] != 'ok':
2899
raise errors.UnexpectedSmartServerResponse(response)
2900
new_revno, new_revision_id = response[1:]
2901
self._last_revision_info_cache = new_revno, new_revision_id
2902
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2903
if self._real_branch is not None:
2904
cache = new_revno, new_revision_id
2905
self._real_branch._last_revision_info_cache = cache
2907
def _set_last_revision(self, revision_id):
2908
old_revno, old_revid = self.last_revision_info()
2909
# This performs additional work to meet the hook contract; while its
2910
# undesirable, we have to synthesise the revno to call the hook, and
2911
# not calling the hook is worse as it means changes can't be prevented.
2912
# Having calculated this though, we can't just call into
2913
# set_last_revision_info as a simple call, because there is a set_rh
2914
# hook that some folk may still be using.
2915
history = self._lefthand_history(revision_id)
2916
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2917
self._clear_cached_state()
2918
response = self._call('Branch.set_last_revision',
2919
self._remote_path(), self._lock_token, self._repo_lock_token,
2921
if response != ('ok',):
2922
raise errors.UnexpectedSmartServerResponse(response)
2923
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2925
@symbol_versioning.deprecated_method(symbol_versioning.deprecated_in((2, 4, 0)))
2927
def set_revision_history(self, rev_history):
2928
"""See Branch.set_revision_history."""
2929
self._set_revision_history(rev_history)
2932
def _set_revision_history(self, rev_history):
2933
# Send just the tip revision of the history; the server will generate
2934
# the full history from that. If the revision doesn't exist in this
2935
# branch, NoSuchRevision will be raised.
2936
if rev_history == []:
2939
rev_id = rev_history[-1]
2940
self._set_last_revision(rev_id)
2941
for hook in branch.Branch.hooks['set_rh']:
2942
hook(self, rev_history)
2943
self._cache_revision_history(rev_history)
2945
def _get_parent_location(self):
2946
medium = self._client._medium
2947
if medium._is_remote_before((1, 13)):
2948
return self._vfs_get_parent_location()
2950
response = self._call('Branch.get_parent', self._remote_path())
2951
except errors.UnknownSmartMethod:
2952
medium._remember_remote_is_before((1, 13))
2953
return self._vfs_get_parent_location()
2954
if len(response) != 1:
2955
raise errors.UnexpectedSmartServerResponse(response)
2956
parent_location = response[0]
2957
if parent_location == '':
2959
return parent_location
2961
def _vfs_get_parent_location(self):
2963
return self._real_branch._get_parent_location()
2965
def _set_parent_location(self, url):
2966
medium = self._client._medium
2967
if medium._is_remote_before((1, 15)):
2968
return self._vfs_set_parent_location(url)
2970
call_url = url or ''
2971
if type(call_url) is not str:
2972
raise AssertionError('url must be a str or None (%s)' % url)
2973
response = self._call('Branch.set_parent_location',
2974
self._remote_path(), self._lock_token, self._repo_lock_token,
2976
except errors.UnknownSmartMethod:
2977
medium._remember_remote_is_before((1, 15))
2978
return self._vfs_set_parent_location(url)
2980
raise errors.UnexpectedSmartServerResponse(response)
2982
def _vfs_set_parent_location(self, url):
2984
return self._real_branch._set_parent_location(url)
2987
def pull(self, source, overwrite=False, stop_revision=None,
2989
self._clear_cached_state_of_remote_branch_only()
2991
return self._real_branch.pull(
2992
source, overwrite=overwrite, stop_revision=stop_revision,
2993
_override_hook_target=self, **kwargs)
2996
def push(self, target, overwrite=False, stop_revision=None, lossy=False):
2998
return self._real_branch.push(
2999
target, overwrite=overwrite, stop_revision=stop_revision, lossy=lossy,
3000
_override_hook_source_branch=self)
3002
def is_locked(self):
3003
return self._lock_count >= 1
3006
def revision_id_to_revno(self, revision_id):
3008
return self._real_branch.revision_id_to_revno(revision_id)
3011
def set_last_revision_info(self, revno, revision_id):
3012
# XXX: These should be returned by the set_last_revision_info verb
3013
old_revno, old_revid = self.last_revision_info()
3014
self._run_pre_change_branch_tip_hooks(revno, revision_id)
3015
if not revision_id or not isinstance(revision_id, basestring):
3016
raise errors.InvalidRevisionId(revision_id=revision_id, branch=self)
3018
response = self._call('Branch.set_last_revision_info',
3019
self._remote_path(), self._lock_token, self._repo_lock_token,
3020
str(revno), revision_id)
3021
except errors.UnknownSmartMethod:
3023
self._clear_cached_state_of_remote_branch_only()
3024
self._real_branch.set_last_revision_info(revno, revision_id)
3025
self._last_revision_info_cache = revno, revision_id
3027
if response == ('ok',):
3028
self._clear_cached_state()
3029
self._last_revision_info_cache = revno, revision_id
3030
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
3031
# Update the _real_branch's cache too.
3032
if self._real_branch is not None:
3033
cache = self._last_revision_info_cache
3034
self._real_branch._last_revision_info_cache = cache
3036
raise errors.UnexpectedSmartServerResponse(response)
3039
def generate_revision_history(self, revision_id, last_rev=None,
3041
medium = self._client._medium
3042
if not medium._is_remote_before((1, 6)):
3043
# Use a smart method for 1.6 and above servers
3045
self._set_last_revision_descendant(revision_id, other_branch,
3046
allow_diverged=True, allow_overwrite_descendant=True)
3048
except errors.UnknownSmartMethod:
3049
medium._remember_remote_is_before((1, 6))
3050
self._clear_cached_state_of_remote_branch_only()
3051
self._set_revision_history(self._lefthand_history(revision_id,
3052
last_rev=last_rev,other_branch=other_branch))
3054
def set_push_location(self, location):
3056
return self._real_branch.set_push_location(location)
3058
def heads_to_fetch(self):
3059
if self._format._use_default_local_heads_to_fetch():
3060
# We recognise this format, and its heads-to-fetch implementation
3061
# is the default one (tip + tags). In this case it's cheaper to
3062
# just use the default implementation rather than a special RPC as
3063
# the tip and tags data is cached.
3064
return branch.Branch.heads_to_fetch(self)
3065
medium = self._client._medium
3066
if medium._is_remote_before((2, 4)):
3067
return self._vfs_heads_to_fetch()
3069
return self._rpc_heads_to_fetch()
3070
except errors.UnknownSmartMethod:
3071
medium._remember_remote_is_before((2, 4))
3072
return self._vfs_heads_to_fetch()
3074
def _rpc_heads_to_fetch(self):
3075
response = self._call('Branch.heads_to_fetch', self._remote_path())
3076
if len(response) != 2:
3077
raise errors.UnexpectedSmartServerResponse(response)
3078
must_fetch, if_present_fetch = response
3079
return set(must_fetch), set(if_present_fetch)
3081
def _vfs_heads_to_fetch(self):
3083
return self._real_branch.heads_to_fetch()
3086
class RemoteConfig(object):
3087
"""A Config that reads and writes from smart verbs.
3089
It is a low-level object that considers config data to be name/value pairs
3090
that may be associated with a section. Assigning meaning to the these
3091
values is done at higher levels like bzrlib.config.TreeConfig.
3094
def get_option(self, name, section=None, default=None):
3095
"""Return the value associated with a named option.
3097
:param name: The name of the value
3098
:param section: The section the option is in (if any)
3099
:param default: The value to return if the value is not set
3100
:return: The value or default value
3103
configobj = self._get_configobj()
3105
section_obj = configobj
3108
section_obj = configobj[section]
3111
return section_obj.get(name, default)
3112
except errors.UnknownSmartMethod:
3113
return self._vfs_get_option(name, section, default)
3115
def _response_to_configobj(self, response):
3116
if len(response[0]) and response[0][0] != 'ok':
3117
raise errors.UnexpectedSmartServerResponse(response)
3118
lines = response[1].read_body_bytes().splitlines()
3119
return config.ConfigObj(lines, encoding='utf-8')
3122
class RemoteBranchConfig(RemoteConfig):
3123
"""A RemoteConfig for Branches."""
3125
def __init__(self, branch):
3126
self._branch = branch
3128
def _get_configobj(self):
3129
path = self._branch._remote_path()
3130
response = self._branch._client.call_expecting_body(
3131
'Branch.get_config_file', path)
3132
return self._response_to_configobj(response)
3134
def set_option(self, value, name, section=None):
3135
"""Set the value associated with a named option.
3137
:param value: The value to set
3138
:param name: The name of the value to set
3139
:param section: The section the option is in (if any)
3141
medium = self._branch._client._medium
3142
if medium._is_remote_before((1, 14)):
3143
return self._vfs_set_option(value, name, section)
3144
if isinstance(value, dict):
3145
if medium._is_remote_before((2, 2)):
3146
return self._vfs_set_option(value, name, section)
3147
return self._set_config_option_dict(value, name, section)
3149
return self._set_config_option(value, name, section)
3151
def _set_config_option(self, value, name, section):
3153
path = self._branch._remote_path()
3154
response = self._branch._client.call('Branch.set_config_option',
3155
path, self._branch._lock_token, self._branch._repo_lock_token,
3156
value.encode('utf8'), name, section or '')
3157
except errors.UnknownSmartMethod:
3158
medium = self._branch._client._medium
3159
medium._remember_remote_is_before((1, 14))
3160
return self._vfs_set_option(value, name, section)
3162
raise errors.UnexpectedSmartServerResponse(response)
3164
def _serialize_option_dict(self, option_dict):
3166
for key, value in option_dict.items():
3167
if isinstance(key, unicode):
3168
key = key.encode('utf8')
3169
if isinstance(value, unicode):
3170
value = value.encode('utf8')
3171
utf8_dict[key] = value
3172
return bencode.bencode(utf8_dict)
3174
def _set_config_option_dict(self, value, name, section):
3176
path = self._branch._remote_path()
3177
serialised_dict = self._serialize_option_dict(value)
3178
response = self._branch._client.call(
3179
'Branch.set_config_option_dict',
3180
path, self._branch._lock_token, self._branch._repo_lock_token,
3181
serialised_dict, name, section or '')
3182
except errors.UnknownSmartMethod:
3183
medium = self._branch._client._medium
3184
medium._remember_remote_is_before((2, 2))
3185
return self._vfs_set_option(value, name, section)
3187
raise errors.UnexpectedSmartServerResponse(response)
3189
def _real_object(self):
3190
self._branch._ensure_real()
3191
return self._branch._real_branch
3193
def _vfs_set_option(self, value, name, section=None):
3194
return self._real_object()._get_config().set_option(
3195
value, name, section)
3198
class RemoteBzrDirConfig(RemoteConfig):
3199
"""A RemoteConfig for BzrDirs."""
3201
def __init__(self, bzrdir):
3202
self._bzrdir = bzrdir
3204
def _get_configobj(self):
3205
medium = self._bzrdir._client._medium
3206
verb = 'BzrDir.get_config_file'
3207
if medium._is_remote_before((1, 15)):
3208
raise errors.UnknownSmartMethod(verb)
3209
path = self._bzrdir._path_for_remote_call(self._bzrdir._client)
3210
response = self._bzrdir._call_expecting_body(
3212
return self._response_to_configobj(response)
3214
def _vfs_get_option(self, name, section, default):
3215
return self._real_object()._get_config().get_option(
3216
name, section, default)
3218
def set_option(self, value, name, section=None):
3219
"""Set the value associated with a named option.
3221
:param value: The value to set
3222
:param name: The name of the value to set
3223
:param section: The section the option is in (if any)
3225
return self._real_object()._get_config().set_option(
3226
value, name, section)
3228
def _real_object(self):
3229
self._bzrdir._ensure_real()
3230
return self._bzrdir._real_bzrdir
3234
def _extract_tar(tar, to_dir):
3235
"""Extract all the contents of a tarfile object.
3237
A replacement for extractall, which is not present in python2.4
3240
tar.extract(tarinfo, to_dir)
3243
def _translate_error(err, **context):
3244
"""Translate an ErrorFromSmartServer into a more useful error.
3246
Possible context keys:
3254
If the error from the server doesn't match a known pattern, then
3255
UnknownErrorFromSmartServer is raised.
3259
return context[name]
3260
except KeyError, key_err:
3261
mutter('Missing key %r in context %r', key_err.args[0], context)
3264
"""Get the path from the context if present, otherwise use first error
3268
return context['path']
3269
except KeyError, key_err:
3271
return err.error_args[0]
3272
except IndexError, idx_err:
3274
'Missing key %r in context %r', key_err.args[0], context)
3277
if err.error_verb == 'NoSuchRevision':
3278
raise NoSuchRevision(find('branch'), err.error_args[0])
3279
elif err.error_verb == 'nosuchrevision':
3280
raise NoSuchRevision(find('repository'), err.error_args[0])
3281
elif err.error_verb == 'nobranch':
3282
if len(err.error_args) >= 1:
3283
extra = err.error_args[0]
3286
raise errors.NotBranchError(path=find('bzrdir').root_transport.base,
3288
elif err.error_verb == 'norepository':
3289
raise errors.NoRepositoryPresent(find('bzrdir'))
3290
elif err.error_verb == 'UnlockableTransport':
3291
raise errors.UnlockableTransport(find('bzrdir').root_transport)
3292
elif err.error_verb == 'TokenMismatch':
3293
raise errors.TokenMismatch(find('token'), '(remote token)')
3294
elif err.error_verb == 'Diverged':
3295
raise errors.DivergedBranches(find('branch'), find('other_branch'))
3296
elif err.error_verb == 'NotStacked':
3297
raise errors.NotStacked(branch=find('branch'))
3298
elif err.error_verb == 'PermissionDenied':
3300
if len(err.error_args) >= 2:
3301
extra = err.error_args[1]
3304
raise errors.PermissionDenied(path, extra=extra)
3305
elif err.error_verb == 'ReadError':
3307
raise errors.ReadError(path)
3308
elif err.error_verb == 'NoSuchFile':
3310
raise errors.NoSuchFile(path)
3311
_translate_error_without_context(err)
3314
def _translate_error_without_context(err):
3315
"""Translate any ErrorFromSmartServer values that don't require context"""
3316
if err.error_verb == 'IncompatibleRepositories':
3317
raise errors.IncompatibleRepositories(err.error_args[0],
3318
err.error_args[1], err.error_args[2])
3319
elif err.error_verb == 'LockContention':
3320
raise errors.LockContention('(remote lock)')
3321
elif err.error_verb == 'LockFailed':
3322
raise errors.LockFailed(err.error_args[0], err.error_args[1])
3323
elif err.error_verb == 'TipChangeRejected':
3324
raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
3325
elif err.error_verb == 'UnstackableBranchFormat':
3326
raise errors.UnstackableBranchFormat(*err.error_args)
3327
elif err.error_verb == 'UnstackableRepositoryFormat':
3328
raise errors.UnstackableRepositoryFormat(*err.error_args)
3329
elif err.error_verb == 'FileExists':
3330
raise errors.FileExists(err.error_args[0])
3331
elif err.error_verb == 'DirectoryNotEmpty':
3332
raise errors.DirectoryNotEmpty(err.error_args[0])
3333
elif err.error_verb == 'ShortReadvError':
3334
args = err.error_args
3335
raise errors.ShortReadvError(
3336
args[0], int(args[1]), int(args[2]), int(args[3]))
3337
elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
3338
encoding = str(err.error_args[0]) # encoding must always be a string
3339
val = err.error_args[1]
3340
start = int(err.error_args[2])
3341
end = int(err.error_args[3])
3342
reason = str(err.error_args[4]) # reason must always be a string
3343
if val.startswith('u:'):
3344
val = val[2:].decode('utf-8')
3345
elif val.startswith('s:'):
3346
val = val[2:].decode('base64')
3347
if err.error_verb == 'UnicodeDecodeError':
3348
raise UnicodeDecodeError(encoding, val, start, end, reason)
3349
elif err.error_verb == 'UnicodeEncodeError':
3350
raise UnicodeEncodeError(encoding, val, start, end, reason)
3351
elif err.error_verb == 'ReadOnlyError':
3352
raise errors.TransportNotPossible('readonly transport')
3353
elif err.error_verb == 'MemoryError':
3354
raise errors.BzrError("remote server out of memory\n"
3355
"Retry non-remotely, or contact the server admin for details.")
3356
raise errors.UnknownErrorFromSmartServer(err)
added
removed
bzrlib/remote.py
