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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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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# TODO: At some point, handle upgrades by just passing the whole request
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# across to run on the server.
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from cStringIO import StringIO
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from bzrlib import (
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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.branch import BranchReferenceFormat
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from bzrlib.bzrdir import BzrDir, RemoteBzrDirFormat
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from bzrlib.decorators import needs_read_lock, needs_write_lock, only_raises
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from bzrlib.errors import (
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from bzrlib.config import BranchConfig, TreeConfig
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.errors import NoSuchRevision
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from bzrlib.lockable_files import LockableFiles
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from bzrlib.pack import ContainerPushParser
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from bzrlib.smart import client, vfs
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from bzrlib.symbol_versioning 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.revision import ensure_null, NULL_REVISION
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from bzrlib.repository import RepositoryWriteLockResult
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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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from bzrlib.revision import NULL_REVISION
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from bzrlib.trace import mutter, note
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# Note: RemoteBzrDirFormat is in bzrdir.py
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class RemoteBzrDir(BzrDir, _RpcHelper):
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class RemoteBzrDir(BzrDir):
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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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def __init__(self, transport, _client=None):
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"""Construct a RemoteBzrDir.
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:param _client: Private parameter for testing. Disables probing and the
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use of a real bzrdir.
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BzrDir.__init__(self, transport, format)
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BzrDir.__init__(self, transport, RemoteBzrDirFormat())
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# this object holds a delegated bzrdir that uses file-level operations
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# to talk to the other side
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self._real_bzrdir = None
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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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if _client is None:
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medium = transport.get_smart_medium()
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self._client = client._SmartClient(medium)
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self._shared_medium = transport.get_shared_medium()
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self._client = client._SmartClient(self._shared_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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self._shared_medium = None
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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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response = self._client.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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raise errors.NotBranchError(path=transport.base)
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def _ensure_real(self):
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"""Ensure that there is a _real_bzrdir set.
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Used before calls to self._real_bzrdir.
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if not self._real_bzrdir:
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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 = 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 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 = bzrdir.network_format_registry.get(control_name)
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format.repository_format = 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 = 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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self._real_bzrdir.create_repository(shared=shared)
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return self.open_repository()
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def destroy_repository(self):
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"""See BzrDir.destroy_repository"""
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self._ensure_real()
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self._real_bzrdir.destroy_repository()
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def create_branch(self, name=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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if not isinstance(real_branch, RemoteBranch):
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result = RemoteBranch(self, self.find_repository(), real_branch,
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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 create_branch(self):
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real_branch = self._real_bzrdir.create_branch()
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return RemoteBranch(self, self.find_repository(), real_branch)
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def destroy_branch(self, name=None):
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def destroy_branch(self):
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"""See BzrDir.destroy_branch"""
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self._ensure_real()
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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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self._real_bzrdir.destroy_branch()
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def create_workingtree(self, revision_id=None, from_branch=None):
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raise errors.NotLocalUrl(self.transport.base)
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def find_branch_format(self, name=None):
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def find_branch_format(self):
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"""Find the branch 'format' for this bzrdir.
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This might be a synthetic object for e.g. RemoteBranch and SVN.
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b = self.open_branch(name=name)
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b = self.open_branch()
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def get_branch_reference(self, name=None):
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def get_branch_reference(self):
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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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response = self._client.call('BzrDir.open_branch', path)
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if response[0] == 'ok':
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if response[1] == '':
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# branch at this location.
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# a branch reference, use the existing BranchReference logic.
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elif response == ('nobranch',):
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raise errors.NotBranchError(path=self.root_transport.base)
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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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def open_branch(self, _unsupported=False):
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assert _unsupported == False, 'unsupported flag support not implemented yet.'
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reference_url = self.get_branch_reference()
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if reference_url is None:
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# branch at this location.
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return RemoteBranch(self, self.find_repository())
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# a branch reference, use the existing BranchReference logic.
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format = BranchReferenceFormat()
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return format.open(self, 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)
366
if response[0] != 'ok':
367
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):
374
verb = 'BzrDir.find_repositoryV3'
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medium = self._client._medium
376
if medium._is_remote_before((1, 13)):
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raise errors.UnknownSmartMethod(verb)
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response = self._call(verb, path)
380
except errors.UnknownSmartMethod:
381
medium._remember_remote_is_before((1, 13))
383
if response[0] != 'ok':
384
raise errors.UnexpectedSmartServerResponse(response)
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return response, None
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return format.open(self, _found=True, location=reference_url)
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def open_repository(self):
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path = self._path_for_remote_call(self._client)
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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:
398
raise errors.UnknownSmartMethod('BzrDir.find_repository{3,2,}')
399
if response[0] != 'ok':
400
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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response = self._client.call('BzrDir.find_repository', path)
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assert response[0] in ('ok', 'norepository'), \
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'unexpected response code %s' % (response,)
149
if response[0] == 'norepository':
150
raise errors.NoRepositoryPresent(self)
151
assert len(response) == 4, 'incorrect response length %s' % (response,)
403
152
if response[1] == '':
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# repo is at this dir.
405
format = response_tuple_to_repo_format(response[2:])
406
# Used to support creating a real format instance when needed.
407
format._creating_bzrdir = self
408
remote_repo = RemoteRepository(self, format)
409
format._creating_repo = remote_repo
410
if real_repo is not None:
411
remote_repo._set_real_repository(real_repo)
153
format = RemoteRepositoryFormat()
154
format.rich_root_data = (response[2] == 'yes')
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format.supports_tree_reference = (response[3] == 'yes')
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return RemoteRepository(self, format)
414
158
raise errors.NoRepositoryPresent(self)
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def has_workingtree(self):
417
if self._has_working_tree is None:
419
self._has_working_tree = self._real_bzrdir.has_workingtree()
420
return self._has_working_tree
422
160
def open_workingtree(self, recommend_upgrade=True):
423
if self.has_workingtree():
162
if self._real_bzrdir.has_workingtree():
424
163
raise errors.NotLocalUrl(self.root_transport)
426
165
raise errors.NoWorkingTree(self.root_transport.base)
473
205
the attributes rich_root_data and supports_tree_reference are set
474
206
on a per instance basis, and are not set (and should not be) at
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:ivar _custom_format: If set, a specific concrete repository format that
478
will be used when initializing a repository with this
479
RemoteRepositoryFormat.
480
:ivar _creating_repo: If set, the repository object that this
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RemoteRepositoryFormat was created for: it can be called into
482
to obtain data like the network name.
485
_matchingbzrdir = RemoteBzrDirFormat()
488
repository.RepositoryFormat.__init__(self)
489
self._custom_format = None
490
self._network_name = None
491
self._creating_bzrdir = None
492
self._supports_chks = None
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self._supports_external_lookups = None
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self._supports_tree_reference = None
495
self._rich_root_data = None
498
return "%s(_network_name=%r)" % (self.__class__.__name__,
502
def fast_deltas(self):
504
return self._custom_format.fast_deltas
507
def rich_root_data(self):
508
if self._rich_root_data is None:
510
self._rich_root_data = self._custom_format.rich_root_data
511
return self._rich_root_data
514
def supports_chks(self):
515
if self._supports_chks is None:
517
self._supports_chks = self._custom_format.supports_chks
518
return self._supports_chks
521
def supports_external_lookups(self):
522
if self._supports_external_lookups is None:
524
self._supports_external_lookups = \
525
self._custom_format.supports_external_lookups
526
return self._supports_external_lookups
529
def supports_tree_reference(self):
530
if self._supports_tree_reference is None:
532
self._supports_tree_reference = \
533
self._custom_format.supports_tree_reference
534
return self._supports_tree_reference
536
def _vfs_initialize(self, a_bzrdir, shared):
537
"""Helper for common code in initialize."""
538
if self._custom_format:
539
# Custom format requested
540
result = self._custom_format.initialize(a_bzrdir, shared=shared)
541
elif self._creating_bzrdir is not None:
542
# Use the format that the repository we were created to back
544
prior_repo = self._creating_bzrdir.open_repository()
545
prior_repo._ensure_real()
546
result = prior_repo._real_repository._format.initialize(
547
a_bzrdir, shared=shared)
549
# assume that a_bzr is a RemoteBzrDir but the smart server didn't
550
# support remote initialization.
551
# We delegate to a real object at this point (as RemoteBzrDir
552
# delegate to the repository format which would lead to infinite
553
# recursion if we just called a_bzrdir.create_repository.
554
a_bzrdir._ensure_real()
555
result = a_bzrdir._real_bzrdir.create_repository(shared=shared)
556
if not isinstance(result, RemoteRepository):
557
return self.open(a_bzrdir)
210
_matchingbzrdir = RemoteBzrDirFormat
561
212
def initialize(self, a_bzrdir, shared=False):
562
# Being asked to create on a non RemoteBzrDir:
563
if not isinstance(a_bzrdir, RemoteBzrDir):
564
return self._vfs_initialize(a_bzrdir, shared)
565
medium = a_bzrdir._client._medium
566
if medium._is_remote_before((1, 13)):
567
return self._vfs_initialize(a_bzrdir, shared)
568
# Creating on a remote bzr dir.
569
# 1) get the network name to use.
570
if self._custom_format:
571
network_name = self._custom_format.network_name()
572
elif self._network_name:
573
network_name = self._network_name
575
# Select the current bzrlib default and ask for that.
576
reference_bzrdir_format = bzrdir.format_registry.get('default')()
577
reference_format = reference_bzrdir_format.repository_format
578
network_name = reference_format.network_name()
579
# 2) try direct creation via RPC
580
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
581
verb = 'BzrDir.create_repository'
587
response = a_bzrdir._call(verb, path, network_name, shared_str)
588
except errors.UnknownSmartMethod:
589
# Fallback - use vfs methods
590
medium._remember_remote_is_before((1, 13))
591
return self._vfs_initialize(a_bzrdir, shared)
593
# Turn the response into a RemoteRepository object.
594
format = response_tuple_to_repo_format(response[1:])
595
# Used to support creating a real format instance when needed.
596
format._creating_bzrdir = a_bzrdir
597
remote_repo = RemoteRepository(a_bzrdir, format)
598
format._creating_repo = remote_repo
213
assert isinstance(a_bzrdir, RemoteBzrDir), \
214
'%r is not a RemoteBzrDir' % (a_bzrdir,)
215
return a_bzrdir.create_repository(shared=shared)
601
217
def open(self, a_bzrdir):
602
if not isinstance(a_bzrdir, RemoteBzrDir):
603
raise AssertionError('%r is not a RemoteBzrDir' % (a_bzrdir,))
218
assert isinstance(a_bzrdir, RemoteBzrDir)
604
219
return a_bzrdir.open_repository()
606
def _ensure_real(self):
607
if self._custom_format is None:
608
self._custom_format = repository.network_format_registry.get(
612
def _fetch_order(self):
614
return self._custom_format._fetch_order
617
def _fetch_uses_deltas(self):
619
return self._custom_format._fetch_uses_deltas
622
def _fetch_reconcile(self):
624
return self._custom_format._fetch_reconcile
626
221
def get_format_description(self):
628
return 'Remote: ' + self._custom_format.get_format_description()
222
return 'bzr remote repository'
630
224
def __eq__(self, other):
631
return self.__class__ is other.__class__
633
def network_name(self):
634
if self._network_name:
635
return self._network_name
636
self._creating_repo._ensure_real()
637
return self._creating_repo._real_repository._format.network_name()
640
def pack_compresses(self):
642
return self._custom_format.pack_compresses
645
def _serializer(self):
647
return self._custom_format._serializer
650
class RemoteRepository(_RpcHelper, lock._RelockDebugMixin,
651
bzrdir.ControlComponent):
225
return self.__class__ == other.__class__
227
def check_conversion_target(self, target_format):
228
if self.rich_root_data and not target_format.rich_root_data:
229
raise errors.BadConversionTarget(
230
'Does not support rich root data.', target_format)
231
if (self.supports_tree_reference and
232
not getattr(target_format, 'supports_tree_reference', False)):
233
raise errors.BadConversionTarget(
234
'Does not support nested trees', target_format)
237
class RemoteRepository(object):
652
238
"""Repository accessed over rpc.
654
240
For the moment most operations are performed using local transport-backed
748
305
self._ensure_real()
749
306
return self._real_repository.commit_write_group()
751
def resume_write_group(self, tokens):
753
return self._real_repository.resume_write_group(tokens)
755
def suspend_write_group(self):
757
return self._real_repository.suspend_write_group()
759
def get_missing_parent_inventories(self, check_for_missing_texts=True):
761
return self._real_repository.get_missing_parent_inventories(
762
check_for_missing_texts=check_for_missing_texts)
764
def _get_rev_id_for_revno_vfs(self, revno, known_pair):
766
return self._real_repository.get_rev_id_for_revno(
769
def get_rev_id_for_revno(self, revno, known_pair):
770
"""See Repository.get_rev_id_for_revno."""
771
path = self.bzrdir._path_for_remote_call(self._client)
773
if self._client._medium._is_remote_before((1, 17)):
774
return self._get_rev_id_for_revno_vfs(revno, known_pair)
775
response = self._call(
776
'Repository.get_rev_id_for_revno', path, revno, known_pair)
777
except errors.UnknownSmartMethod:
778
self._client._medium._remember_remote_is_before((1, 17))
779
return self._get_rev_id_for_revno_vfs(revno, known_pair)
780
if response[0] == 'ok':
781
return True, response[1]
782
elif response[0] == 'history-incomplete':
783
known_pair = response[1:3]
784
for fallback in self._fallback_repositories:
785
found, result = fallback.get_rev_id_for_revno(revno, known_pair)
790
# Not found in any fallbacks
791
return False, known_pair
793
raise errors.UnexpectedSmartServerResponse(response)
795
308
def _ensure_real(self):
796
309
"""Ensure that there is a _real_repository set.
798
311
Used before calls to self._real_repository.
800
Note that _ensure_real causes many roundtrips to the server which are
801
not desirable, and prevents the use of smart one-roundtrip RPC's to
802
perform complex operations (such as accessing parent data, streaming
803
revisions etc). Adding calls to _ensure_real should only be done when
804
bringing up new functionality, adding fallbacks for smart methods that
805
require a fallback path, and never to replace an existing smart method
806
invocation. If in doubt chat to the bzr network team.
808
if self._real_repository is None:
809
if 'hpssvfs' in debug.debug_flags:
811
warning('VFS Repository access triggered\n%s',
812
''.join(traceback.format_stack()))
813
self._unstacked_provider.missing_keys.clear()
313
if not self._real_repository:
814
314
self.bzrdir._ensure_real()
815
self._set_real_repository(
816
self.bzrdir._real_bzrdir.open_repository())
818
def _translate_error(self, err, **context):
819
self.bzrdir._translate_error(err, repository=self, **context)
315
#self._real_repository = self.bzrdir._real_bzrdir.open_repository()
316
self._set_real_repository(self.bzrdir._real_bzrdir.open_repository())
821
318
def find_text_key_references(self):
822
319
"""Find the text key references within the repository.
843
340
self._ensure_real()
844
341
return self._real_repository._generate_text_key_index()
846
def _get_revision_graph(self, revision_id):
847
"""Private method for using with old (< 1.2) servers to fallback."""
343
def get_revision_graph(self, revision_id=None):
344
"""See Repository.get_revision_graph()."""
848
345
if revision_id is None:
850
347
elif revision.is_null(revision_id):
853
350
path = self.bzrdir._path_for_remote_call(self._client)
854
response = self._call_expecting_body(
351
assert type(revision_id) is str
352
response = self._client.call_expecting_body(
855
353
'Repository.get_revision_graph', path, revision_id)
856
response_tuple, response_handler = response
857
if response_tuple[0] != 'ok':
858
raise errors.UnexpectedSmartServerResponse(response_tuple)
859
coded = response_handler.read_body_bytes()
861
# no revisions in this repository!
863
lines = coded.split('\n')
866
d = tuple(line.split())
867
revision_graph[d[0]] = d[1:]
869
return revision_graph
872
"""See Repository._get_sink()."""
873
return RemoteStreamSink(self)
875
def _get_source(self, to_format):
876
"""Return a source for streaming from this repository."""
877
return RemoteStreamSource(self, to_format)
354
if response[0][0] not in ['ok', 'nosuchrevision']:
355
raise errors.UnexpectedSmartServerResponse(response[0])
356
if response[0][0] == 'ok':
357
coded = response[1].read_body_bytes()
359
# no revisions in this repository!
361
lines = coded.split('\n')
364
d = tuple(line.split())
365
revision_graph[d[0]] = d[1:]
367
return revision_graph
369
response_body = response[1].read_body_bytes()
370
assert response_body == ''
371
raise NoSuchRevision(self, revision_id)
880
373
def has_revision(self, revision_id):
881
"""True if this repository has a copy of the revision."""
882
# Copy of bzrlib.repository.Repository.has_revision
883
return revision_id in self.has_revisions((revision_id,))
374
"""See Repository.has_revision()."""
375
if revision_id == NULL_REVISION:
376
# The null revision is always present.
378
path = self.bzrdir._path_for_remote_call(self._client)
379
response = self._client.call('Repository.has_revision', path, revision_id)
380
assert response[0] in ('yes', 'no'), 'unexpected response code %s' % (response,)
381
return response[0] == 'yes'
886
383
def has_revisions(self, revision_ids):
887
"""Probe to find out the presence of multiple revisions.
889
:param revision_ids: An iterable of revision_ids.
890
:return: A set of the revision_ids that were present.
892
# Copy of bzrlib.repository.Repository.has_revisions
893
parent_map = self.get_parent_map(revision_ids)
894
result = set(parent_map)
895
if _mod_revision.NULL_REVISION in revision_ids:
896
result.add(_mod_revision.NULL_REVISION)
384
"""See Repository.has_revisions()."""
386
for revision_id in revision_ids:
387
if self.has_revision(revision_id):
388
result.add(revision_id)
899
def _has_same_fallbacks(self, other_repo):
900
"""Returns true if the repositories have the same fallbacks."""
901
# XXX: copied from Repository; it should be unified into a base class
902
# <https://bugs.edge.launchpad.net/bzr/+bug/401622>
903
my_fb = self._fallback_repositories
904
other_fb = other_repo._fallback_repositories
905
if len(my_fb) != len(other_fb):
907
for f, g in zip(my_fb, other_fb):
908
if not f.has_same_location(g):
912
391
def has_same_location(self, other):
913
# TODO: Move to RepositoryBase and unify with the regular Repository
914
# one; unfortunately the tests rely on slightly different behaviour at
915
# present -- mbp 20090710
916
return (self.__class__ is other.__class__ and
392
return (self.__class__ == other.__class__ and
917
393
self.bzrdir.transport.base == other.bzrdir.transport.base)
919
395
def get_graph(self, other_repository=None):
920
396
"""Return the graph for this repository format"""
921
parents_provider = self._make_parents_provider(other_repository)
397
parents_provider = self
398
if (other_repository is not None and
399
other_repository.bzrdir.transport.base !=
400
self.bzrdir.transport.base):
401
parents_provider = graph._StackedParentsProvider(
402
[parents_provider, other_repository._make_parents_provider()])
922
403
return graph.Graph(parents_provider)
925
def get_known_graph_ancestry(self, revision_ids):
926
"""Return the known graph for a set of revision ids and their ancestors.
928
st = static_tuple.StaticTuple
929
revision_keys = [st(r_id).intern() for r_id in revision_ids]
930
known_graph = self.revisions.get_known_graph_ancestry(revision_keys)
931
return graph.GraphThunkIdsToKeys(known_graph)
933
405
def gather_stats(self, revid=None, committers=None):
934
406
"""See Repository.gather_stats()."""
935
407
path = self.bzrdir._path_for_remote_call(self._client)
987
459
def is_shared(self):
988
460
"""See Repository.is_shared()."""
989
461
path = self.bzrdir._path_for_remote_call(self._client)
990
response = self._call('Repository.is_shared', path)
991
if response[0] not in ('yes', 'no'):
992
raise SmartProtocolError('unexpected response code %s' % (response,))
462
response = self._client.call('Repository.is_shared', path)
463
assert response[0] in ('yes', 'no'), 'unexpected response code %s' % (response,)
993
464
return response[0] == 'yes'
995
466
def is_write_locked(self):
996
467
return self._lock_mode == 'w'
998
def _warn_if_deprecated(self, branch=None):
999
# If we have a real repository, the check will be done there, if we
1000
# don't the check will be done remotely.
1003
469
def lock_read(self):
1004
"""Lock the repository for read operations.
1006
:return: A bzrlib.lock.LogicalLockResult.
1008
470
# wrong eventually - want a local lock cache context
1009
471
if not self._lock_mode:
1010
self._note_lock('r')
1011
472
self._lock_mode = 'r'
1012
473
self._lock_count = 1
1013
self._unstacked_provider.enable_cache(cache_misses=True)
474
self._parents_map = {}
1014
475
if self._real_repository is not None:
1015
476
self._real_repository.lock_read()
1016
for repo in self._fallback_repositories:
1019
478
self._lock_count += 1
1020
return lock.LogicalLockResult(self.unlock)
1022
480
def _remote_lock_write(self, token):
1023
481
path = self.bzrdir._path_for_remote_call(self._client)
1024
482
if token is None:
1026
err_context = {'token': token}
1027
response = self._call('Repository.lock_write', path, token,
484
response = self._client.call('Repository.lock_write', path, token)
1029
485
if response[0] == 'ok':
1030
486
ok, token = response
488
elif response[0] == 'LockContention':
489
raise errors.LockContention('(remote lock)')
490
elif response[0] == 'UnlockableTransport':
491
raise errors.UnlockableTransport(self.bzrdir.root_transport)
492
elif response[0] == 'LockFailed':
493
raise errors.LockFailed(response[1], response[2])
1033
495
raise errors.UnexpectedSmartServerResponse(response)
1035
def lock_write(self, token=None, _skip_rpc=False):
497
def lock_write(self, token=None):
1036
498
if not self._lock_mode:
1037
self._note_lock('w')
1039
if self._lock_token is not None:
1040
if token != self._lock_token:
1041
raise errors.TokenMismatch(token, self._lock_token)
1042
self._lock_token = token
1044
self._lock_token = self._remote_lock_write(token)
499
self._lock_token = self._remote_lock_write(token)
1045
500
# if self._lock_token is None, then this is something like packs or
1046
501
# svn where we don't get to lock the repo, or a weave style repository
1047
502
# where we cannot lock it over the wire and attempts to do so will
1227
644
# FIXME: It ought to be possible to call this without immediately
1228
645
# triggering _ensure_real. For now it's the easiest thing to do.
1229
646
self._ensure_real()
1230
real_repo = self._real_repository
1231
builder = real_repo.get_commit_builder(branch, parents,
647
builder = self._real_repository.get_commit_builder(branch, parents,
1232
648
config, timestamp=timestamp, timezone=timezone,
1233
649
committer=committer, revprops=revprops, revision_id=revision_id)
1236
def add_fallback_repository(self, repository):
1237
"""Add a repository to use for looking up data not held locally.
1239
:param repository: A repository.
1241
if not self._format.supports_external_lookups:
1242
raise errors.UnstackableRepositoryFormat(
1243
self._format.network_name(), self.base)
1244
# We need to accumulate additional repositories here, to pass them in
1247
if self.is_locked():
1248
# We will call fallback.unlock() when we transition to the unlocked
1249
# state, so always add a lock here. If a caller passes us a locked
1250
# repository, they are responsible for unlocking it later.
1251
repository.lock_read()
1252
self._check_fallback_repository(repository)
1253
self._fallback_repositories.append(repository)
1254
# If self._real_repository was parameterised already (e.g. because a
1255
# _real_branch had its get_stacked_on_url method called), then the
1256
# repository to be added may already be in the _real_repositories list.
1257
if self._real_repository is not None:
1258
fallback_locations = [repo.user_url for repo in
1259
self._real_repository._fallback_repositories]
1260
if repository.user_url not in fallback_locations:
1261
self._real_repository.add_fallback_repository(repository)
1263
def _check_fallback_repository(self, repository):
1264
"""Check that this repository can fallback to repository safely.
1266
Raise an error if not.
1268
:param repository: A repository to fallback to.
1270
return _mod_repository.InterRepository._assert_same_model(
1273
653
def add_inventory(self, revid, inv, parents):
1274
654
self._ensure_real()
1275
655
return self._real_repository.add_inventory(revid, inv, parents)
1277
def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
1278
parents, basis_inv=None, propagate_caches=False):
1280
return self._real_repository.add_inventory_by_delta(basis_revision_id,
1281
delta, new_revision_id, parents, basis_inv=basis_inv,
1282
propagate_caches=propagate_caches)
1284
658
def add_revision(self, rev_id, rev, inv=None, config=None):
1285
659
self._ensure_real()
1286
660
return self._real_repository.add_revision(
1352
716
return repository.InterRepository.get(
1353
717
other, self).search_missing_revision_ids(revision_id, find_ghosts)
1355
def fetch(self, source, revision_id=None, pb=None, find_ghosts=False,
1357
# No base implementation to use as RemoteRepository is not a subclass
1358
# of Repository; so this is a copy of Repository.fetch().
1359
if fetch_spec is not None and revision_id is not None:
1360
raise AssertionError(
1361
"fetch_spec and revision_id are mutually exclusive.")
1362
if self.is_in_write_group():
1363
raise errors.InternalBzrError(
1364
"May not fetch while in a write group.")
1365
# fast path same-url fetch operations
1366
if (self.has_same_location(source)
1367
and fetch_spec is None
1368
and self._has_same_fallbacks(source)):
719
def fetch(self, source, revision_id=None, pb=None):
720
if self.has_same_location(source):
1369
721
# check that last_revision is in 'from' and then return a
1371
723
if (revision_id is not None and
1372
724
not revision.is_null(revision_id)):
1373
725
self.get_revision(revision_id)
1375
# if there is no specific appropriate InterRepository, this will get
1376
# the InterRepository base class, which raises an
1377
# IncompatibleRepositories when asked to fetch.
1378
inter = repository.InterRepository.get(source, self)
1379
return inter.fetch(revision_id=revision_id, pb=pb,
1380
find_ghosts=find_ghosts, fetch_spec=fetch_spec)
728
return self._real_repository.fetch(
729
source, revision_id=revision_id, pb=pb)
1382
731
def create_bundle(self, target, base, fileobj, format=None):
1383
732
self._ensure_real()
1384
733
self._real_repository.create_bundle(target, base, fileobj, format)
736
def control_weaves(self):
738
return self._real_repository.control_weaves
1386
740
@needs_read_lock
1387
741
def get_ancestry(self, revision_id, topo_sorted=True):
1388
742
self._ensure_real()
1389
743
return self._real_repository.get_ancestry(revision_id, topo_sorted)
746
def get_inventory_weave(self):
748
return self._real_repository.get_inventory_weave()
1391
750
def fileids_altered_by_revision_ids(self, revision_ids):
1392
751
self._ensure_real()
1393
752
return self._real_repository.fileids_altered_by_revision_ids(revision_ids)
1396
755
self._ensure_real()
1397
756
return self._real_repository._get_versioned_file_checker(
1398
757
revisions, revision_versions_cache)
1400
759
def iter_files_bytes(self, desired_files):
1401
760
"""See Repository.iter_file_bytes.
1403
762
self._ensure_real()
1404
763
return self._real_repository.iter_files_bytes(desired_files)
1406
def get_parent_map(self, revision_ids):
765
def get_parent_map(self, keys):
1407
766
"""See bzrlib.Graph.get_parent_map()."""
1408
return self._make_parents_provider().get_parent_map(revision_ids)
1410
def _get_parent_map_rpc(self, keys):
767
# Hack to build up the caching logic.
768
ancestry = self._parents_map
769
missing_revisions = set(key for key in keys if key not in ancestry)
770
if missing_revisions:
771
parent_map = self._get_parent_map(missing_revisions)
772
if 'hpss' in debug.debug_flags:
773
mutter('retransmitted revisions: %d of %d',
774
len(set(self._parents_map).intersection(parent_map)),
776
self._parents_map.update(parent_map)
777
return dict((k, ancestry[k]) for k in keys if k in ancestry)
779
def _response_is_unknown_method(self, response, verb):
780
"""Return True if response is an unknonwn method response to verb.
782
:param response: The response from a smart client call_expecting_body
784
:param verb: The verb used in that call.
785
:return: True if an unknown method was encountered.
787
# This might live better on
788
# bzrlib.smart.protocol.SmartClientRequestProtocolOne
789
if (response[0] == ('error', "Generic bzr smart protocol error: "
790
"bad request '%s'" % verb) or
791
response[0] == ('error', "Generic bzr smart protocol error: "
792
"bad request u'%s'" % verb)):
793
response[1].cancel_read_body()
797
def _get_parent_map(self, keys):
1411
798
"""Helper for get_parent_map that performs the RPC."""
1412
medium = self._client._medium
1413
if medium._is_remote_before((1, 2)):
1414
# We already found out that the server can't understand
1415
# Repository.get_parent_map requests, so just fetch the whole
1418
# Note that this reads the whole graph, when only some keys are
1419
# wanted. On this old server there's no way (?) to get them all
1420
# in one go, and the user probably will have seen a warning about
1421
# the server being old anyhow.
1422
rg = self._get_revision_graph(None)
1423
# There is an API discrepancy between get_parent_map and
1424
# get_revision_graph. Specifically, a "key:()" pair in
1425
# get_revision_graph just means a node has no parents. For
1426
# "get_parent_map" it means the node is a ghost. So fix up the
1427
# graph to correct this.
1428
# https://bugs.launchpad.net/bzr/+bug/214894
1429
# There is one other "bug" which is that ghosts in
1430
# get_revision_graph() are not returned at all. But we won't worry
1431
# about that for now.
1432
for node_id, parent_ids in rg.iteritems():
1433
if parent_ids == ():
1434
rg[node_id] = (NULL_REVISION,)
1435
rg[NULL_REVISION] = ()
1438
799
keys = set(keys)
1440
raise ValueError('get_parent_map(None) is not valid')
1441
800
if NULL_REVISION in keys:
1442
801
keys.discard(NULL_REVISION)
1443
802
found_parents = {NULL_REVISION:()}
1445
804
return found_parents
1447
806
found_parents = {}
1448
# TODO(Needs analysis): We could assume that the keys being requested
1449
# from get_parent_map are in a breadth first search, so typically they
1450
# will all be depth N from some common parent, and we don't have to
1451
# have the server iterate from the root parent, but rather from the
1452
# keys we're searching; and just tell the server the keyspace we
1453
# already have; but this may be more traffic again.
1455
# Transform self._parents_map into a search request recipe.
1456
# TODO: Manage this incrementally to avoid covering the same path
1457
# repeatedly. (The server will have to on each request, but the less
1458
# work done the better).
1460
# Negative caching notes:
1461
# new server sends missing when a request including the revid
1462
# 'include-missing:' is present in the request.
1463
# missing keys are serialised as missing:X, and we then call
1464
# provider.note_missing(X) for-all X
1465
parents_map = self._unstacked_provider.get_cached_map()
1466
if parents_map is None:
1467
# Repository is not locked, so there's no cache.
1469
# start_set is all the keys in the cache
1470
start_set = set(parents_map)
1471
# result set is all the references to keys in the cache
1472
result_parents = set()
1473
for parents in parents_map.itervalues():
1474
result_parents.update(parents)
1475
stop_keys = result_parents.difference(start_set)
1476
# We don't need to send ghosts back to the server as a position to
1478
stop_keys.difference_update(self._unstacked_provider.missing_keys)
1479
key_count = len(parents_map)
1480
if (NULL_REVISION in result_parents
1481
and NULL_REVISION in self._unstacked_provider.missing_keys):
1482
# If we pruned NULL_REVISION from the stop_keys because it's also
1483
# in our cache of "missing" keys we need to increment our key count
1484
# by 1, because the reconsitituted SearchResult on the server will
1485
# still consider NULL_REVISION to be an included key.
1487
included_keys = start_set.intersection(result_parents)
1488
start_set.difference_update(included_keys)
1489
recipe = ('manual', start_set, stop_keys, key_count)
1490
body = self._serialise_search_recipe(recipe)
1491
807
path = self.bzrdir._path_for_remote_call(self._client)
1492
808
for key in keys:
1493
if type(key) is not str:
1495
"key %r not a plain string" % (key,))
809
assert type(key) is str
1496
810
verb = 'Repository.get_parent_map'
1497
args = (path, 'include-missing:') + tuple(keys)
1499
response = self._call_with_body_bytes_expecting_body(
1501
except errors.UnknownSmartMethod:
1502
# Server does not support this method, so get the whole graph.
1503
# Worse, we have to force a disconnection, because the server now
1504
# doesn't realise it has a body on the wire to consume, so the
1505
# only way to recover is to abandon the connection.
1507
'Server is too old for fast get_parent_map, reconnecting. '
1508
'(Upgrade the server to Bazaar 1.2 to avoid this)')
1510
# To avoid having to disconnect repeatedly, we keep track of the
1511
# fact the server doesn't understand remote methods added in 1.2.
1512
medium._remember_remote_is_before((1, 2))
1513
# Recurse just once and we should use the fallback code.
1514
return self._get_parent_map_rpc(keys)
1515
response_tuple, response_handler = response
1516
if response_tuple[0] not in ['ok']:
1517
response_handler.cancel_read_body()
1518
raise errors.UnexpectedSmartServerResponse(response_tuple)
1519
if response_tuple[0] == 'ok':
1520
coded = bz2.decompress(response_handler.read_body_bytes())
811
response = self._client.call_expecting_body(
813
if self._response_is_unknown_method(response, verb):
814
# Server that does not support this method, get the whole graph.
815
response = self._client.call_expecting_body(
816
'Repository.get_revision_graph', path, '')
817
if response[0][0] not in ['ok', 'nosuchrevision']:
818
reponse[1].cancel_read_body()
819
raise errors.UnexpectedSmartServerResponse(response[0])
820
elif response[0][0] not in ['ok']:
821
reponse[1].cancel_read_body()
822
raise errors.UnexpectedSmartServerResponse(response[0])
823
if response[0][0] == 'ok':
824
coded = response[1].read_body_bytes()
1522
826
# no revisions found
1718
971
self._ensure_real()
1719
972
return self._real_repository.has_signature_for_revision_id(revision_id)
974
def get_data_stream_for_search(self, search):
975
REQUEST_NAME = 'Repository.stream_revisions_chunked'
976
path = self.bzrdir._path_for_remote_call(self._client)
977
recipe = search.get_recipe()
978
start_keys = ' '.join(recipe[0])
979
stop_keys = ' '.join(recipe[1])
980
count = str(recipe[2])
981
body = '\n'.join((start_keys, stop_keys, count))
982
response, protocol = self._client.call_with_body_bytes_expecting_body(
983
REQUEST_NAME, (path,), body)
985
if response == ('ok',):
986
return self._deserialise_stream(protocol)
987
if response == ('NoSuchRevision', ):
988
# We cannot easily identify the revision that is missing in this
989
# situation without doing much more network IO. For now, bail.
990
raise NoSuchRevision(self, "unknown")
991
elif (response == ('error', "Generic bzr smart protocol error: "
992
"bad request '%s'" % REQUEST_NAME) or
993
response == ('error', "Generic bzr smart protocol error: "
994
"bad request u'%s'" % REQUEST_NAME)):
995
protocol.cancel_read_body()
997
return self._real_repository.get_data_stream_for_search(search)
999
raise errors.UnexpectedSmartServerResponse(response)
1001
def _deserialise_stream(self, protocol):
1002
stream = protocol.read_streamed_body()
1003
container_parser = ContainerPushParser()
1004
for bytes in stream:
1005
container_parser.accept_bytes(bytes)
1006
records = container_parser.read_pending_records()
1007
for record_names, record_bytes in records:
1008
if len(record_names) != 1:
1009
# These records should have only one name, and that name
1010
# should be a one-element tuple.
1011
raise errors.SmartProtocolError(
1012
'Repository data stream had invalid record name %r'
1014
name_tuple = record_names[0]
1015
yield name_tuple, record_bytes
1017
def insert_data_stream(self, stream):
1019
self._real_repository.insert_data_stream(stream)
1721
1021
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1722
1022
self._ensure_real()
1723
1023
return self._real_repository.item_keys_introduced_by(revision_ids,
1728
1028
self._ensure_real()
1729
1029
return self._real_repository.revision_graph_can_have_wrong_parents()
1731
def _find_inconsistent_revision_parents(self, revisions_iterator=None):
1031
def _find_inconsistent_revision_parents(self):
1732
1032
self._ensure_real()
1733
return self._real_repository._find_inconsistent_revision_parents(
1033
return self._real_repository._find_inconsistent_revision_parents()
1736
1035
def _check_for_inconsistent_revision_parents(self):
1737
1036
self._ensure_real()
1738
1037
return self._real_repository._check_for_inconsistent_revision_parents()
1740
def _make_parents_provider(self, other=None):
1741
providers = [self._unstacked_provider]
1742
if other is not None:
1743
providers.insert(0, other)
1744
providers.extend(r._make_parents_provider() for r in
1745
self._fallback_repositories)
1746
return graph.StackedParentsProvider(providers)
1748
def _serialise_search_recipe(self, recipe):
1749
"""Serialise a graph search recipe.
1751
:param recipe: A search recipe (start, stop, count).
1752
:return: Serialised bytes.
1754
start_keys = ' '.join(recipe[1])
1755
stop_keys = ' '.join(recipe[2])
1756
count = str(recipe[3])
1757
return '\n'.join((start_keys, stop_keys, count))
1759
def _serialise_search_result(self, search_result):
1760
if isinstance(search_result, graph.PendingAncestryResult):
1761
parts = ['ancestry-of']
1762
parts.extend(search_result.heads)
1764
recipe = search_result.get_recipe()
1765
parts = [recipe[0], self._serialise_search_recipe(recipe)]
1766
return '\n'.join(parts)
1769
path = self.bzrdir._path_for_remote_call(self._client)
1771
response = self._call('PackRepository.autopack', path)
1772
except errors.UnknownSmartMethod:
1774
self._real_repository._pack_collection.autopack()
1777
if response[0] != 'ok':
1778
raise errors.UnexpectedSmartServerResponse(response)
1781
class RemoteStreamSink(repository.StreamSink):
1783
def _insert_real(self, stream, src_format, resume_tokens):
1784
self.target_repo._ensure_real()
1785
sink = self.target_repo._real_repository._get_sink()
1786
result = sink.insert_stream(stream, src_format, resume_tokens)
1788
self.target_repo.autopack()
1791
def insert_stream(self, stream, src_format, resume_tokens):
1792
target = self.target_repo
1793
target._unstacked_provider.missing_keys.clear()
1794
candidate_calls = [('Repository.insert_stream_1.19', (1, 19))]
1795
if target._lock_token:
1796
candidate_calls.append(('Repository.insert_stream_locked', (1, 14)))
1797
lock_args = (target._lock_token or '',)
1799
candidate_calls.append(('Repository.insert_stream', (1, 13)))
1801
client = target._client
1802
medium = client._medium
1803
path = target.bzrdir._path_for_remote_call(client)
1804
# Probe for the verb to use with an empty stream before sending the
1805
# real stream to it. We do this both to avoid the risk of sending a
1806
# large request that is then rejected, and because we don't want to
1807
# implement a way to buffer, rewind, or restart the stream.
1809
for verb, required_version in candidate_calls:
1810
if medium._is_remote_before(required_version):
1813
# We've already done the probing (and set _is_remote_before) on
1814
# a previous insert.
1817
byte_stream = smart_repo._stream_to_byte_stream([], src_format)
1819
response = client.call_with_body_stream(
1820
(verb, path, '') + lock_args, byte_stream)
1821
except errors.UnknownSmartMethod:
1822
medium._remember_remote_is_before(required_version)
1828
return self._insert_real(stream, src_format, resume_tokens)
1829
self._last_inv_record = None
1830
self._last_substream = None
1831
if required_version < (1, 19):
1832
# Remote side doesn't support inventory deltas. Wrap the stream to
1833
# make sure we don't send any. If the stream contains inventory
1834
# deltas we'll interrupt the smart insert_stream request and
1836
stream = self._stop_stream_if_inventory_delta(stream)
1837
byte_stream = smart_repo._stream_to_byte_stream(
1839
resume_tokens = ' '.join(resume_tokens)
1840
response = client.call_with_body_stream(
1841
(verb, path, resume_tokens) + lock_args, byte_stream)
1842
if response[0][0] not in ('ok', 'missing-basis'):
1843
raise errors.UnexpectedSmartServerResponse(response)
1844
if self._last_substream is not None:
1845
# The stream included an inventory-delta record, but the remote
1846
# side isn't new enough to support them. So we need to send the
1847
# rest of the stream via VFS.
1848
self.target_repo.refresh_data()
1849
return self._resume_stream_with_vfs(response, src_format)
1850
if response[0][0] == 'missing-basis':
1851
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1852
resume_tokens = tokens
1853
return resume_tokens, set(missing_keys)
1855
self.target_repo.refresh_data()
1858
def _resume_stream_with_vfs(self, response, src_format):
1859
"""Resume sending a stream via VFS, first resending the record and
1860
substream that couldn't be sent via an insert_stream verb.
1862
if response[0][0] == 'missing-basis':
1863
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1864
# Ignore missing_keys, we haven't finished inserting yet
1867
def resume_substream():
1868
# Yield the substream that was interrupted.
1869
for record in self._last_substream:
1871
self._last_substream = None
1872
def resume_stream():
1873
# Finish sending the interrupted substream
1874
yield ('inventory-deltas', resume_substream())
1875
# Then simply continue sending the rest of the stream.
1876
for substream_kind, substream in self._last_stream:
1877
yield substream_kind, substream
1878
return self._insert_real(resume_stream(), src_format, tokens)
1880
def _stop_stream_if_inventory_delta(self, stream):
1881
"""Normally this just lets the original stream pass-through unchanged.
1883
However if any 'inventory-deltas' substream occurs it will stop
1884
streaming, and store the interrupted substream and stream in
1885
self._last_substream and self._last_stream so that the stream can be
1886
resumed by _resume_stream_with_vfs.
1889
stream_iter = iter(stream)
1890
for substream_kind, substream in stream_iter:
1891
if substream_kind == 'inventory-deltas':
1892
self._last_substream = substream
1893
self._last_stream = stream_iter
1896
yield substream_kind, substream
1899
class RemoteStreamSource(repository.StreamSource):
1900
"""Stream data from a remote server."""
1902
def get_stream(self, search):
1903
if (self.from_repository._fallback_repositories and
1904
self.to_format._fetch_order == 'topological'):
1905
return self._real_stream(self.from_repository, search)
1908
repos = [self.from_repository]
1914
repos.extend(repo._fallback_repositories)
1915
sources.append(repo)
1916
return self.missing_parents_chain(search, sources)
1918
def get_stream_for_missing_keys(self, missing_keys):
1919
self.from_repository._ensure_real()
1920
real_repo = self.from_repository._real_repository
1921
real_source = real_repo._get_source(self.to_format)
1922
return real_source.get_stream_for_missing_keys(missing_keys)
1924
def _real_stream(self, repo, search):
1925
"""Get a stream for search from repo.
1927
This never called RemoteStreamSource.get_stream, and is a heler
1928
for RemoteStreamSource._get_stream to allow getting a stream
1929
reliably whether fallback back because of old servers or trying
1930
to stream from a non-RemoteRepository (which the stacked support
1933
source = repo._get_source(self.to_format)
1934
if isinstance(source, RemoteStreamSource):
1936
source = repo._real_repository._get_source(self.to_format)
1937
return source.get_stream(search)
1939
def _get_stream(self, repo, search):
1940
"""Core worker to get a stream from repo for search.
1942
This is used by both get_stream and the stacking support logic. It
1943
deliberately gets a stream for repo which does not need to be
1944
self.from_repository. In the event that repo is not Remote, or
1945
cannot do a smart stream, a fallback is made to the generic
1946
repository._get_stream() interface, via self._real_stream.
1948
In the event of stacking, streams from _get_stream will not
1949
contain all the data for search - this is normal (see get_stream).
1951
:param repo: A repository.
1952
:param search: A search.
1954
# Fallbacks may be non-smart
1955
if not isinstance(repo, RemoteRepository):
1956
return self._real_stream(repo, search)
1957
client = repo._client
1958
medium = client._medium
1959
path = repo.bzrdir._path_for_remote_call(client)
1960
search_bytes = repo._serialise_search_result(search)
1961
args = (path, self.to_format.network_name())
1963
('Repository.get_stream_1.19', (1, 19)),
1964
('Repository.get_stream', (1, 13))]
1966
for verb, version in candidate_verbs:
1967
if medium._is_remote_before(version):
1970
response = repo._call_with_body_bytes_expecting_body(
1971
verb, args, search_bytes)
1972
except errors.UnknownSmartMethod:
1973
medium._remember_remote_is_before(version)
1975
response_tuple, response_handler = response
1979
return self._real_stream(repo, search)
1980
if response_tuple[0] != 'ok':
1981
raise errors.UnexpectedSmartServerResponse(response_tuple)
1982
byte_stream = response_handler.read_streamed_body()
1983
src_format, stream = smart_repo._byte_stream_to_stream(byte_stream)
1984
if src_format.network_name() != repo._format.network_name():
1985
raise AssertionError(
1986
"Mismatched RemoteRepository and stream src %r, %r" % (
1987
src_format.network_name(), repo._format.network_name()))
1990
def missing_parents_chain(self, search, sources):
1991
"""Chain multiple streams together to handle stacking.
1993
:param search: The overall search to satisfy with streams.
1994
:param sources: A list of Repository objects to query.
1996
self.from_serialiser = self.from_repository._format._serializer
1997
self.seen_revs = set()
1998
self.referenced_revs = set()
1999
# If there are heads in the search, or the key count is > 0, we are not
2001
while not search.is_empty() and len(sources) > 1:
2002
source = sources.pop(0)
2003
stream = self._get_stream(source, search)
2004
for kind, substream in stream:
2005
if kind != 'revisions':
2006
yield kind, substream
2008
yield kind, self.missing_parents_rev_handler(substream)
2009
search = search.refine(self.seen_revs, self.referenced_revs)
2010
self.seen_revs = set()
2011
self.referenced_revs = set()
2012
if not search.is_empty():
2013
for kind, stream in self._get_stream(sources[0], search):
2016
def missing_parents_rev_handler(self, substream):
2017
for content in substream:
2018
revision_bytes = content.get_bytes_as('fulltext')
2019
revision = self.from_serialiser.read_revision_from_string(
2021
self.seen_revs.add(content.key[-1])
2022
self.referenced_revs.update(revision.parent_ids)
1039
def _make_parents_provider(self):
2026
1043
class RemoteBranchLockableFiles(LockableFiles):
2027
1044
"""A 'LockableFiles' implementation that talks to a smart server.
2029
1046
This is not a public interface class.
2042
1059
self._dir_mode = None
2043
1060
self._file_mode = None
1062
def get(self, path):
1063
"""'get' a remote path as per the LockableFiles interface.
1065
:param path: the file to 'get'. If this is 'branch.conf', we do not
1066
just retrieve a file, instead we ask the smart server to generate
1067
a configuration for us - which is retrieved as an INI file.
1069
if path == 'branch.conf':
1070
path = self.bzrdir._path_for_remote_call(self._client)
1071
response = self._client.call_expecting_body(
1072
'Branch.get_config_file', path)
1073
assert response[0][0] == 'ok', \
1074
'unexpected response code %s' % (response[0],)
1075
return StringIO(response[1].read_body_bytes())
1078
return LockableFiles.get(self, path)
2046
1081
class RemoteBranchFormat(branch.BranchFormat):
2048
def __init__(self, network_name=None):
2049
super(RemoteBranchFormat, self).__init__()
2050
self._matchingbzrdir = RemoteBzrDirFormat()
2051
self._matchingbzrdir.set_branch_format(self)
2052
self._custom_format = None
2053
self._network_name = network_name
2055
1083
def __eq__(self, other):
2056
return (isinstance(other, RemoteBranchFormat) and
1084
return (isinstance(other, RemoteBranchFormat) and
2057
1085
self.__dict__ == other.__dict__)
2059
def _ensure_real(self):
2060
if self._custom_format is None:
2061
self._custom_format = branch.network_format_registry.get(
2064
1087
def get_format_description(self):
2066
return 'Remote: ' + self._custom_format.get_format_description()
2068
def network_name(self):
2069
return self._network_name
2071
def open(self, a_bzrdir, name=None, ignore_fallbacks=False):
2072
return a_bzrdir.open_branch(name=name,
2073
ignore_fallbacks=ignore_fallbacks)
2075
def _vfs_initialize(self, a_bzrdir, name):
2076
# Initialisation when using a local bzrdir object, or a non-vfs init
2077
# method is not available on the server.
2078
# self._custom_format is always set - the start of initialize ensures
2080
if isinstance(a_bzrdir, RemoteBzrDir):
2081
a_bzrdir._ensure_real()
2082
result = self._custom_format.initialize(a_bzrdir._real_bzrdir,
2085
# We assume the bzrdir is parameterised; it may not be.
2086
result = self._custom_format.initialize(a_bzrdir, name)
2087
if (isinstance(a_bzrdir, RemoteBzrDir) and
2088
not isinstance(result, RemoteBranch)):
2089
result = RemoteBranch(a_bzrdir, a_bzrdir.find_repository(), result,
2093
def initialize(self, a_bzrdir, name=None):
2094
# 1) get the network name to use.
2095
if self._custom_format:
2096
network_name = self._custom_format.network_name()
2098
# Select the current bzrlib default and ask for that.
2099
reference_bzrdir_format = bzrdir.format_registry.get('default')()
2100
reference_format = reference_bzrdir_format.get_branch_format()
2101
self._custom_format = reference_format
2102
network_name = reference_format.network_name()
2103
# Being asked to create on a non RemoteBzrDir:
2104
if not isinstance(a_bzrdir, RemoteBzrDir):
2105
return self._vfs_initialize(a_bzrdir, name=name)
2106
medium = a_bzrdir._client._medium
2107
if medium._is_remote_before((1, 13)):
2108
return self._vfs_initialize(a_bzrdir, name=name)
2109
# Creating on a remote bzr dir.
2110
# 2) try direct creation via RPC
2111
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
2112
if name is not None:
2113
# XXX JRV20100304: Support creating colocated branches
2114
raise errors.NoColocatedBranchSupport(self)
2115
verb = 'BzrDir.create_branch'
2117
response = a_bzrdir._call(verb, path, network_name)
2118
except errors.UnknownSmartMethod:
2119
# Fallback - use vfs methods
2120
medium._remember_remote_is_before((1, 13))
2121
return self._vfs_initialize(a_bzrdir, name=name)
2122
if response[0] != 'ok':
2123
raise errors.UnexpectedSmartServerResponse(response)
2124
# Turn the response into a RemoteRepository object.
2125
format = RemoteBranchFormat(network_name=response[1])
2126
repo_format = response_tuple_to_repo_format(response[3:])
2127
if response[2] == '':
2128
repo_bzrdir = a_bzrdir
2130
repo_bzrdir = RemoteBzrDir(
2131
a_bzrdir.root_transport.clone(response[2]), a_bzrdir._format,
2133
remote_repo = RemoteRepository(repo_bzrdir, repo_format)
2134
remote_branch = RemoteBranch(a_bzrdir, remote_repo,
2135
format=format, setup_stacking=False, name=name)
2136
# XXX: We know this is a new branch, so it must have revno 0, revid
2137
# NULL_REVISION. Creating the branch locked would make this be unable
2138
# to be wrong; here its simply very unlikely to be wrong. RBC 20090225
2139
remote_branch._last_revision_info_cache = 0, NULL_REVISION
2140
return remote_branch
2142
def make_tags(self, branch):
2144
return self._custom_format.make_tags(branch)
1088
return 'Remote BZR Branch'
1090
def get_format_string(self):
1091
return 'Remote BZR Branch'
1093
def open(self, a_bzrdir):
1094
assert isinstance(a_bzrdir, RemoteBzrDir)
1095
return a_bzrdir.open_branch()
1097
def initialize(self, a_bzrdir):
1098
assert isinstance(a_bzrdir, RemoteBzrDir)
1099
return a_bzrdir.create_branch()
2146
1101
def supports_tags(self):
2147
1102
# Remote branches might support tags, but we won't know until we
2148
1103
# access the real remote branch.
2150
return self._custom_format.supports_tags()
2152
def supports_stacking(self):
2154
return self._custom_format.supports_stacking()
2156
def supports_set_append_revisions_only(self):
2158
return self._custom_format.supports_set_append_revisions_only()
2161
class RemoteBranch(branch.Branch, _RpcHelper, lock._RelockDebugMixin):
1107
class RemoteBranch(branch.Branch):
2162
1108
"""Branch stored on a server accessed by HPSS RPC.
2164
1110
At the moment most operations are mapped down to simple file operations.
2167
1113
def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
2168
_client=None, format=None, setup_stacking=True, name=None):
2169
1115
"""Create a RemoteBranch instance.
2171
1117
:param real_branch: An optional local implementation of the branch
2172
1118
format, usually accessing the data via the VFS.
2173
1119
:param _client: Private parameter for testing.
2174
:param format: A RemoteBranchFormat object, None to create one
2175
automatically. If supplied it should have a network_name already
2177
:param setup_stacking: If True make an RPC call to determine the
2178
stacked (or not) status of the branch. If False assume the branch
2180
:param name: Colocated branch name
2182
1121
# We intentionally don't call the parent class's __init__, because it
2183
1122
# will try to assign to self.tags, which is a property in this subclass.
2184
1123
# And the parent's __init__ doesn't do much anyway.
1124
self._revision_id_to_revno_cache = None
1125
self._revision_history_cache = None
2185
1126
self.bzrdir = remote_bzrdir
2186
1127
if _client is not None:
2187
1128
self._client = _client
2189
self._client = remote_bzrdir._client
1130
self._client = client._SmartClient(self.bzrdir._shared_medium)
2190
1131
self.repository = remote_repository
2191
1132
if real_branch is not None:
2192
1133
self._real_branch = real_branch
2270
1161
Used before calls to self._real_branch.
2272
if self._real_branch is None:
2273
if not vfs.vfs_enabled():
2274
raise AssertionError('smart server vfs must be enabled '
2275
'to use vfs implementation')
1163
if not self._real_branch:
1164
assert vfs.vfs_enabled()
2276
1165
self.bzrdir._ensure_real()
2277
self._real_branch = self.bzrdir._real_bzrdir.open_branch(
2278
ignore_fallbacks=self._real_ignore_fallbacks, name=self._name)
2279
if self.repository._real_repository is None:
2280
# Give the remote repository the matching real repo.
2281
real_repo = self._real_branch.repository
2282
if isinstance(real_repo, RemoteRepository):
2283
real_repo._ensure_real()
2284
real_repo = real_repo._real_repository
2285
self.repository._set_real_repository(real_repo)
2286
# Give the real branch the remote repository to let fast-pathing
1166
self._real_branch = self.bzrdir._real_bzrdir.open_branch()
1167
# Give the remote repository the matching real repo.
1168
real_repo = self._real_branch.repository
1169
if isinstance(real_repo, RemoteRepository):
1170
real_repo._ensure_real()
1171
real_repo = real_repo._real_repository
1172
self.repository._set_real_repository(real_repo)
1173
# Give the branch the remote repository to let fast-pathing happen.
2288
1174
self._real_branch.repository = self.repository
1175
# XXX: deal with _lock_mode == 'w'
2289
1176
if self._lock_mode == 'r':
2290
1177
self._real_branch.lock_read()
2291
elif self._lock_mode == 'w':
2292
self._real_branch.lock_write(token=self._lock_token)
2294
def _translate_error(self, err, **context):
2295
self.repository._translate_error(err, branch=self, **context)
2297
def _clear_cached_state(self):
2298
super(RemoteBranch, self)._clear_cached_state()
2299
if self._real_branch is not None:
2300
self._real_branch._clear_cached_state()
2302
def _clear_cached_state_of_remote_branch_only(self):
2303
"""Like _clear_cached_state, but doesn't clear the cache of
2306
This is useful when falling back to calling a method of
2307
self._real_branch that changes state. In that case the underlying
2308
branch changes, so we need to invalidate this RemoteBranch's cache of
2309
it. However, there's no need to invalidate the _real_branch's cache
2310
too, in fact doing so might harm performance.
2312
super(RemoteBranch, self)._clear_cached_state()
2315
1180
def control_files(self):
2330
1195
self._ensure_real()
2331
1196
return self._real_branch.get_physical_lock_status()
2333
def get_stacked_on_url(self):
2334
"""Get the URL this branch is stacked against.
2336
:raises NotStacked: If the branch is not stacked.
2337
:raises UnstackableBranchFormat: If the branch does not support
2339
:raises UnstackableRepositoryFormat: If the repository does not support
2343
# there may not be a repository yet, so we can't use
2344
# self._translate_error, so we can't use self._call either.
2345
response = self._client.call('Branch.get_stacked_on_url',
2346
self._remote_path())
2347
except errors.ErrorFromSmartServer, err:
2348
# there may not be a repository yet, so we can't call through
2349
# its _translate_error
2350
_translate_error(err, branch=self)
2351
except errors.UnknownSmartMethod, err:
2353
return self._real_branch.get_stacked_on_url()
2354
if response[0] != 'ok':
2355
raise errors.UnexpectedSmartServerResponse(response)
2358
def set_stacked_on_url(self, url):
2359
branch.Branch.set_stacked_on_url(self, url)
2361
self._is_stacked = False
2363
self._is_stacked = True
2365
def _vfs_get_tags_bytes(self):
2367
return self._real_branch._get_tags_bytes()
2369
def _get_tags_bytes(self):
2370
medium = self._client._medium
2371
if medium._is_remote_before((1, 13)):
2372
return self._vfs_get_tags_bytes()
2374
response = self._call('Branch.get_tags_bytes', self._remote_path())
2375
except errors.UnknownSmartMethod:
2376
medium._remember_remote_is_before((1, 13))
2377
return self._vfs_get_tags_bytes()
2380
def _vfs_set_tags_bytes(self, bytes):
2382
return self._real_branch._set_tags_bytes(bytes)
2384
def _set_tags_bytes(self, bytes):
2385
medium = self._client._medium
2386
if medium._is_remote_before((1, 18)):
2387
self._vfs_set_tags_bytes(bytes)
2391
self._remote_path(), self._lock_token, self._repo_lock_token)
2392
response = self._call_with_body_bytes(
2393
'Branch.set_tags_bytes', args, bytes)
2394
except errors.UnknownSmartMethod:
2395
medium._remember_remote_is_before((1, 18))
2396
self._vfs_set_tags_bytes(bytes)
2398
1198
def lock_read(self):
2399
"""Lock the branch for read operations.
2401
:return: A bzrlib.lock.LogicalLockResult.
2403
self.repository.lock_read()
2404
1199
if not self._lock_mode:
2405
self._note_lock('r')
2406
1200
self._lock_mode = 'r'
2407
1201
self._lock_count = 1
2408
1202
if self._real_branch is not None:
2409
1203
self._real_branch.lock_read()
2411
1205
self._lock_count += 1
2412
return lock.LogicalLockResult(self.unlock)
2414
1207
def _remote_lock_write(self, token):
2415
1208
if token is None:
2416
1209
branch_token = repo_token = ''
2418
1211
branch_token = token
2419
repo_token = self.repository.lock_write().repository_token
1212
repo_token = self.repository.lock_write()
2420
1213
self.repository.unlock()
2421
err_context = {'token': token}
2422
response = self._call(
2423
'Branch.lock_write', self._remote_path(), branch_token,
2424
repo_token or '', **err_context)
2425
if response[0] != 'ok':
1214
path = self.bzrdir._path_for_remote_call(self._client)
1215
response = self._client.call('Branch.lock_write', path, branch_token,
1217
if response[0] == 'ok':
1218
ok, branch_token, repo_token = response
1219
return branch_token, repo_token
1220
elif response[0] == 'LockContention':
1221
raise errors.LockContention('(remote lock)')
1222
elif response[0] == 'TokenMismatch':
1223
raise errors.TokenMismatch(token, '(remote token)')
1224
elif response[0] == 'UnlockableTransport':
1225
raise errors.UnlockableTransport(self.bzrdir.root_transport)
1226
elif response[0] == 'ReadOnlyError':
1227
raise errors.ReadOnlyError(self)
1228
elif response[0] == 'LockFailed':
1229
raise errors.LockFailed(response[1], response[2])
2426
1231
raise errors.UnexpectedSmartServerResponse(response)
2427
ok, branch_token, repo_token = response
2428
return branch_token, repo_token
2430
1233
def lock_write(self, token=None):
2431
1234
if not self._lock_mode:
2432
self._note_lock('w')
2433
# Lock the branch and repo in one remote call.
2434
1235
remote_tokens = self._remote_lock_write(token)
2435
1236
self._lock_token, self._repo_lock_token = remote_tokens
2436
if not self._lock_token:
2437
raise SmartProtocolError('Remote server did not return a token!')
2438
# Tell the self.repository object that it is locked.
2439
self.repository.lock_write(
2440
self._repo_lock_token, _skip_rpc=True)
1237
assert self._lock_token, 'Remote server did not return a token!'
1238
# TODO: We really, really, really don't want to call _ensure_real
1239
# here, but it's the easiest way to ensure coherency between the
1240
# state of the RemoteBranch and RemoteRepository objects and the
1241
# physical locks. If we don't materialise the real objects here,
1242
# then getting everything in the right state later is complex, so
1243
# for now we just do it the lazy way.
1244
# -- Andrew Bennetts, 2007-02-22.
2442
1246
if self._real_branch is not None:
2443
self._real_branch.lock_write(token=self._lock_token)
1247
self._real_branch.repository.lock_write(
1248
token=self._repo_lock_token)
1250
self._real_branch.lock_write(token=self._lock_token)
1252
self._real_branch.repository.unlock()
2444
1253
if token is not None:
2445
1254
self._leave_lock = True
1256
# XXX: this case seems to be unreachable; token cannot be None.
2447
1257
self._leave_lock = False
2448
1258
self._lock_mode = 'w'
2449
1259
self._lock_count = 1
2451
1261
raise errors.ReadOnlyTransaction
2453
1263
if token is not None:
2454
# A token was given to lock_write, and we're relocking, so
2455
# check that the given token actually matches the one we
1264
# A token was given to lock_write, and we're relocking, so check
1265
# that the given token actually matches the one we already have.
2457
1266
if token != self._lock_token:
2458
1267
raise errors.TokenMismatch(token, self._lock_token)
2459
1268
self._lock_count += 1
2460
# Re-lock the repository too.
2461
self.repository.lock_write(self._repo_lock_token)
2462
return BranchWriteLockResult(self.unlock, self._lock_token or None)
1269
return self._lock_token or None
2464
1271
def _unlock(self, branch_token, repo_token):
2465
err_context = {'token': str((branch_token, repo_token))}
2466
response = self._call(
2467
'Branch.unlock', self._remote_path(), branch_token,
2468
repo_token or '', **err_context)
1272
path = self.bzrdir._path_for_remote_call(self._client)
1273
response = self._client.call('Branch.unlock', path, branch_token,
2469
1275
if response == ('ok',):
2471
raise errors.UnexpectedSmartServerResponse(response)
1277
elif response[0] == 'TokenMismatch':
1278
raise errors.TokenMismatch(
1279
str((branch_token, repo_token)), '(remote tokens)')
1281
raise errors.UnexpectedSmartServerResponse(response)
2473
@only_raises(errors.LockNotHeld, errors.LockBroken)
2474
1283
def unlock(self):
2476
self._lock_count -= 1
2477
if not self._lock_count:
2478
self._clear_cached_state()
2479
mode = self._lock_mode
2480
self._lock_mode = None
2481
if self._real_branch is not None:
2482
if (not self._leave_lock and mode == 'w' and
2483
self._repo_lock_token):
2484
# If this RemoteBranch will remove the physical lock
2485
# for the repository, make sure the _real_branch
2486
# doesn't do it first. (Because the _real_branch's
2487
# repository is set to be the RemoteRepository.)
2488
self._real_branch.repository.leave_lock_in_place()
2489
self._real_branch.unlock()
2491
# Only write-locked branched need to make a remote method
2492
# call to perform the unlock.
2494
if not self._lock_token:
2495
raise AssertionError('Locked, but no token!')
2496
branch_token = self._lock_token
2497
repo_token = self._repo_lock_token
2498
self._lock_token = None
2499
self._repo_lock_token = None
2500
if not self._leave_lock:
2501
self._unlock(branch_token, repo_token)
2503
self.repository.unlock()
1284
self._lock_count -= 1
1285
if not self._lock_count:
1286
self._clear_cached_state()
1287
mode = self._lock_mode
1288
self._lock_mode = None
1289
if self._real_branch is not None:
1290
if (not self._leave_lock and mode == 'w' and
1291
self._repo_lock_token):
1292
# If this RemoteBranch will remove the physical lock for the
1293
# repository, make sure the _real_branch doesn't do it
1294
# first. (Because the _real_branch's repository is set to
1295
# be the RemoteRepository.)
1296
self._real_branch.repository.leave_lock_in_place()
1297
self._real_branch.unlock()
1299
# Only write-locked branched need to make a remote method call
1300
# to perfom the unlock.
1302
assert self._lock_token, 'Locked, but no token!'
1303
branch_token = self._lock_token
1304
repo_token = self._repo_lock_token
1305
self._lock_token = None
1306
self._repo_lock_token = None
1307
if not self._leave_lock:
1308
self._unlock(branch_token, repo_token)
2505
1310
def break_lock(self):
2506
1311
self._ensure_real()
2516
1321
raise NotImplementedError(self.dont_leave_lock_in_place)
2517
1322
self._leave_lock = False
2520
def get_rev_id(self, revno, history=None):
2522
return _mod_revision.NULL_REVISION
2523
last_revision_info = self.last_revision_info()
2524
ok, result = self.repository.get_rev_id_for_revno(
2525
revno, last_revision_info)
2528
missing_parent = result[1]
2529
# Either the revision named by the server is missing, or its parent
2530
# is. Call get_parent_map to determine which, so that we report a
2532
parent_map = self.repository.get_parent_map([missing_parent])
2533
if missing_parent in parent_map:
2534
missing_parent = parent_map[missing_parent]
2535
raise errors.RevisionNotPresent(missing_parent, self.repository)
2537
def _last_revision_info(self):
2538
response = self._call('Branch.last_revision_info', self._remote_path())
2539
if response[0] != 'ok':
2540
raise SmartProtocolError('unexpected response code %s' % (response,))
1324
def last_revision_info(self):
1325
"""See Branch.last_revision_info()."""
1326
path = self.bzrdir._path_for_remote_call(self._client)
1327
response = self._client.call('Branch.last_revision_info', path)
1328
assert response[0] == 'ok', 'unexpected response code %s' % (response,)
2541
1329
revno = int(response[1])
2542
1330
last_revision = response[2]
2543
1331
return (revno, last_revision)
2545
1333
def _gen_revision_history(self):
2546
1334
"""See Branch._gen_revision_history()."""
2547
if self._is_stacked:
2549
return self._real_branch._gen_revision_history()
2550
response_tuple, response_handler = self._call_expecting_body(
2551
'Branch.revision_history', self._remote_path())
2552
if response_tuple[0] != 'ok':
2553
raise errors.UnexpectedSmartServerResponse(response_tuple)
2554
result = response_handler.read_body_bytes().split('\x00')
1335
path = self.bzrdir._path_for_remote_call(self._client)
1336
response = self._client.call_expecting_body(
1337
'Branch.revision_history', path)
1338
assert response[0][0] == 'ok', ('unexpected response code %s'
1340
result = response[1].read_body_bytes().split('\x00')
2555
1341
if result == ['']:
2559
def _remote_path(self):
2560
return self.bzrdir._path_for_remote_call(self._client)
2562
def _set_last_revision_descendant(self, revision_id, other_branch,
2563
allow_diverged=False, allow_overwrite_descendant=False):
2564
# This performs additional work to meet the hook contract; while its
2565
# undesirable, we have to synthesise the revno to call the hook, and
2566
# not calling the hook is worse as it means changes can't be prevented.
2567
# Having calculated this though, we can't just call into
2568
# set_last_revision_info as a simple call, because there is a set_rh
2569
# hook that some folk may still be using.
2570
old_revno, old_revid = self.last_revision_info()
2571
history = self._lefthand_history(revision_id)
2572
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2573
err_context = {'other_branch': other_branch}
2574
response = self._call('Branch.set_last_revision_ex',
2575
self._remote_path(), self._lock_token, self._repo_lock_token,
2576
revision_id, int(allow_diverged), int(allow_overwrite_descendant),
2578
self._clear_cached_state()
2579
if len(response) != 3 and response[0] != 'ok':
2580
raise errors.UnexpectedSmartServerResponse(response)
2581
new_revno, new_revision_id = response[1:]
2582
self._last_revision_info_cache = new_revno, new_revision_id
2583
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2584
if self._real_branch is not None:
2585
cache = new_revno, new_revision_id
2586
self._real_branch._last_revision_info_cache = cache
2588
def _set_last_revision(self, revision_id):
2589
old_revno, old_revid = self.last_revision_info()
2590
# This performs additional work to meet the hook contract; while its
2591
# undesirable, we have to synthesise the revno to call the hook, and
2592
# not calling the hook is worse as it means changes can't be prevented.
2593
# Having calculated this though, we can't just call into
2594
# set_last_revision_info as a simple call, because there is a set_rh
2595
# hook that some folk may still be using.
2596
history = self._lefthand_history(revision_id)
2597
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2598
self._clear_cached_state()
2599
response = self._call('Branch.set_last_revision',
2600
self._remote_path(), self._lock_token, self._repo_lock_token,
2602
if response != ('ok',):
2603
raise errors.UnexpectedSmartServerResponse(response)
2604
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2606
1345
@needs_write_lock
2607
1346
def set_revision_history(self, rev_history):
2608
1347
# Send just the tip revision of the history; the server will generate
2609
1348
# the full history from that. If the revision doesn't exist in this
2610
1349
# branch, NoSuchRevision will be raised.
1350
path = self.bzrdir._path_for_remote_call(self._client)
2611
1351
if rev_history == []:
2612
1352
rev_id = 'null:'
2614
1354
rev_id = rev_history[-1]
2615
self._set_last_revision(rev_id)
2616
for hook in branch.Branch.hooks['set_rh']:
2617
hook(self, rev_history)
1355
self._clear_cached_state()
1356
response = self._client.call('Branch.set_last_revision',
1357
path, self._lock_token, self._repo_lock_token, rev_id)
1358
if response[0] == 'NoSuchRevision':
1359
raise NoSuchRevision(self, rev_id)
1361
assert response == ('ok',), (
1362
'unexpected response code %r' % (response,))
2618
1363
self._cache_revision_history(rev_history)
2620
def _get_parent_location(self):
2621
medium = self._client._medium
2622
if medium._is_remote_before((1, 13)):
2623
return self._vfs_get_parent_location()
2625
response = self._call('Branch.get_parent', self._remote_path())
2626
except errors.UnknownSmartMethod:
2627
medium._remember_remote_is_before((1, 13))
2628
return self._vfs_get_parent_location()
2629
if len(response) != 1:
2630
raise errors.UnexpectedSmartServerResponse(response)
2631
parent_location = response[0]
2632
if parent_location == '':
2634
return parent_location
2636
def _vfs_get_parent_location(self):
2638
return self._real_branch._get_parent_location()
2640
def _set_parent_location(self, url):
2641
medium = self._client._medium
2642
if medium._is_remote_before((1, 15)):
2643
return self._vfs_set_parent_location(url)
2645
call_url = url or ''
2646
if type(call_url) is not str:
2647
raise AssertionError('url must be a str or None (%s)' % url)
2648
response = self._call('Branch.set_parent_location',
2649
self._remote_path(), self._lock_token, self._repo_lock_token,
2651
except errors.UnknownSmartMethod:
2652
medium._remember_remote_is_before((1, 15))
2653
return self._vfs_set_parent_location(url)
2655
raise errors.UnexpectedSmartServerResponse(response)
2657
def _vfs_set_parent_location(self, url):
2659
return self._real_branch._set_parent_location(url)
1365
def get_parent(self):
1367
return self._real_branch.get_parent()
1369
def set_parent(self, url):
1371
return self._real_branch.set_parent(url)
1373
def get_config(self):
1374
return RemoteBranchConfig(self)
1376
def sprout(self, to_bzrdir, revision_id=None):
1377
# Like Branch.sprout, except that it sprouts a branch in the default
1378
# format, because RemoteBranches can't be created at arbitrary URLs.
1379
# XXX: if to_bzrdir is a RemoteBranch, this should perhaps do
1380
# to_bzrdir.create_branch...
1382
result = self._real_branch._format.initialize(to_bzrdir)
1383
self.copy_content_into(result, revision_id=revision_id)
1384
result.set_parent(self.bzrdir.root_transport.base)
2661
1387
@needs_write_lock
2662
1388
def pull(self, source, overwrite=False, stop_revision=None,
2664
self._clear_cached_state_of_remote_branch_only()
1390
# FIXME: This asks the real branch to run the hooks, which means
1391
# they're called with the wrong target branch parameter.
1392
# The test suite specifically allows this at present but it should be
1393
# fixed. It should get a _override_hook_target branch,
1394
# as push does. -- mbp 20070405
2665
1395
self._ensure_real()
2666
return self._real_branch.pull(
1396
self._real_branch.pull(
2667
1397
source, overwrite=overwrite, stop_revision=stop_revision,
2668
_override_hook_target=self, **kwargs)
2670
1400
@needs_read_lock
2671
1401
def push(self, target, overwrite=False, stop_revision=None):
2677
1407
def is_locked(self):
2678
1408
return self._lock_count >= 1
2681
def revision_id_to_revno(self, revision_id):
2683
return self._real_branch.revision_id_to_revno(revision_id)
2686
1410
def set_last_revision_info(self, revno, revision_id):
2687
# XXX: These should be returned by the set_last_revision_info verb
2688
old_revno, old_revid = self.last_revision_info()
2689
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2690
revision_id = ensure_null(revision_id)
2692
response = self._call('Branch.set_last_revision_info',
2693
self._remote_path(), self._lock_token, self._repo_lock_token,
2694
str(revno), revision_id)
2695
except errors.UnknownSmartMethod:
2697
self._clear_cached_state_of_remote_branch_only()
2698
self._real_branch.set_last_revision_info(revno, revision_id)
2699
self._last_revision_info_cache = revno, revision_id
2701
if response == ('ok',):
2702
self._clear_cached_state()
2703
self._last_revision_info_cache = revno, revision_id
2704
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2705
# Update the _real_branch's cache too.
2706
if self._real_branch is not None:
2707
cache = self._last_revision_info_cache
2708
self._real_branch._last_revision_info_cache = cache
2710
raise errors.UnexpectedSmartServerResponse(response)
1412
self._clear_cached_state()
1413
return self._real_branch.set_last_revision_info(revno, revision_id)
2713
1415
def generate_revision_history(self, revision_id, last_rev=None,
2714
1416
other_branch=None):
2715
medium = self._client._medium
2716
if not medium._is_remote_before((1, 6)):
2717
# Use a smart method for 1.6 and above servers
2719
self._set_last_revision_descendant(revision_id, other_branch,
2720
allow_diverged=True, allow_overwrite_descendant=True)
2722
except errors.UnknownSmartMethod:
2723
medium._remember_remote_is_before((1, 6))
2724
self._clear_cached_state_of_remote_branch_only()
2725
self.set_revision_history(self._lefthand_history(revision_id,
2726
last_rev=last_rev,other_branch=other_branch))
1418
return self._real_branch.generate_revision_history(
1419
revision_id, last_rev=last_rev, other_branch=other_branch)
1424
return self._real_branch.tags
2728
1426
def set_push_location(self, location):
2729
1427
self._ensure_real()
2730
1428
return self._real_branch.set_push_location(location)
2733
class RemoteConfig(object):
2734
"""A Config that reads and writes from smart verbs.
2736
It is a low-level object that considers config data to be name/value pairs
2737
that may be associated with a section. Assigning meaning to the these
2738
values is done at higher levels like bzrlib.config.TreeConfig.
2741
def get_option(self, name, section=None, default=None):
2742
"""Return the value associated with a named option.
2744
:param name: The name of the value
2745
:param section: The section the option is in (if any)
2746
:param default: The value to return if the value is not set
2747
:return: The value or default value
2750
configobj = self._get_configobj()
2752
section_obj = configobj
2755
section_obj = configobj[section]
2758
return section_obj.get(name, default)
2759
except errors.UnknownSmartMethod:
2760
return self._vfs_get_option(name, section, default)
2762
def _response_to_configobj(self, response):
2763
if len(response[0]) and response[0][0] != 'ok':
2764
raise errors.UnexpectedSmartServerResponse(response)
2765
lines = response[1].read_body_bytes().splitlines()
2766
return config.ConfigObj(lines, encoding='utf-8')
2769
class RemoteBranchConfig(RemoteConfig):
2770
"""A RemoteConfig for Branches."""
2772
def __init__(self, branch):
2773
self._branch = branch
2775
def _get_configobj(self):
2776
path = self._branch._remote_path()
2777
response = self._branch._client.call_expecting_body(
2778
'Branch.get_config_file', path)
2779
return self._response_to_configobj(response)
2781
def set_option(self, value, name, section=None):
2782
"""Set the value associated with a named option.
2784
:param value: The value to set
2785
:param name: The name of the value to set
2786
:param section: The section the option is in (if any)
2788
medium = self._branch._client._medium
2789
if medium._is_remote_before((1, 14)):
2790
return self._vfs_set_option(value, name, section)
2792
path = self._branch._remote_path()
2793
response = self._branch._client.call('Branch.set_config_option',
2794
path, self._branch._lock_token, self._branch._repo_lock_token,
2795
value.encode('utf8'), name, section or '')
2796
except errors.UnknownSmartMethod:
2797
medium._remember_remote_is_before((1, 14))
2798
return self._vfs_set_option(value, name, section)
2800
raise errors.UnexpectedSmartServerResponse(response)
2802
def _real_object(self):
2803
self._branch._ensure_real()
2804
return self._branch._real_branch
2806
def _vfs_set_option(self, value, name, section=None):
2807
return self._real_object()._get_config().set_option(
2808
value, name, section)
2811
class RemoteBzrDirConfig(RemoteConfig):
2812
"""A RemoteConfig for BzrDirs."""
2814
def __init__(self, bzrdir):
2815
self._bzrdir = bzrdir
2817
def _get_configobj(self):
2818
medium = self._bzrdir._client._medium
2819
verb = 'BzrDir.get_config_file'
2820
if medium._is_remote_before((1, 15)):
2821
raise errors.UnknownSmartMethod(verb)
2822
path = self._bzrdir._path_for_remote_call(self._bzrdir._client)
2823
response = self._bzrdir._call_expecting_body(
2825
return self._response_to_configobj(response)
2827
def _vfs_get_option(self, name, section, default):
2828
return self._real_object()._get_config().get_option(
2829
name, section, default)
2831
def set_option(self, value, name, section=None):
2832
"""Set the value associated with a named option.
2834
:param value: The value to set
2835
:param name: The name of the value to set
2836
:param section: The section the option is in (if any)
2838
return self._real_object()._get_config().set_option(
2839
value, name, section)
2841
def _real_object(self):
2842
self._bzrdir._ensure_real()
2843
return self._bzrdir._real_bzrdir
1430
def update_revisions(self, other, stop_revision=None, overwrite=False):
1432
return self._real_branch.update_revisions(
1433
other, stop_revision=stop_revision, overwrite=overwrite)
1436
class RemoteBranchConfig(BranchConfig):
1439
self.branch._ensure_real()
1440
return self.branch._real_branch.get_config().username()
1442
def _get_branch_data_config(self):
1443
self.branch._ensure_real()
1444
if self._branch_data_config is None:
1445
self._branch_data_config = TreeConfig(self.branch._real_branch)
1446
return self._branch_data_config
2847
1449
def _extract_tar(tar, to_dir):
2852
1454
for tarinfo in tar:
2853
1455
tar.extract(tarinfo, to_dir)
2856
def _translate_error(err, **context):
2857
"""Translate an ErrorFromSmartServer into a more useful error.
2859
Possible context keys:
2867
If the error from the server doesn't match a known pattern, then
2868
UnknownErrorFromSmartServer is raised.
2872
return context[name]
2873
except KeyError, key_err:
2874
mutter('Missing key %r in context %r', key_err.args[0], context)
2877
"""Get the path from the context if present, otherwise use first error
2881
return context['path']
2882
except KeyError, key_err:
2884
return err.error_args[0]
2885
except IndexError, idx_err:
2887
'Missing key %r in context %r', key_err.args[0], context)
2890
if err.error_verb == 'IncompatibleRepositories':
2891
raise errors.IncompatibleRepositories(err.error_args[0],
2892
err.error_args[1], err.error_args[2])
2893
elif err.error_verb == 'NoSuchRevision':
2894
raise NoSuchRevision(find('branch'), err.error_args[0])
2895
elif err.error_verb == 'nosuchrevision':
2896
raise NoSuchRevision(find('repository'), err.error_args[0])
2897
elif err.error_verb == 'nobranch':
2898
if len(err.error_args) >= 1:
2899
extra = err.error_args[0]
2902
raise errors.NotBranchError(path=find('bzrdir').root_transport.base,
2904
elif err.error_verb == 'norepository':
2905
raise errors.NoRepositoryPresent(find('bzrdir'))
2906
elif err.error_verb == 'LockContention':
2907
raise errors.LockContention('(remote lock)')
2908
elif err.error_verb == 'UnlockableTransport':
2909
raise errors.UnlockableTransport(find('bzrdir').root_transport)
2910
elif err.error_verb == 'LockFailed':
2911
raise errors.LockFailed(err.error_args[0], err.error_args[1])
2912
elif err.error_verb == 'TokenMismatch':
2913
raise errors.TokenMismatch(find('token'), '(remote token)')
2914
elif err.error_verb == 'Diverged':
2915
raise errors.DivergedBranches(find('branch'), find('other_branch'))
2916
elif err.error_verb == 'TipChangeRejected':
2917
raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
2918
elif err.error_verb == 'UnstackableBranchFormat':
2919
raise errors.UnstackableBranchFormat(*err.error_args)
2920
elif err.error_verb == 'UnstackableRepositoryFormat':
2921
raise errors.UnstackableRepositoryFormat(*err.error_args)
2922
elif err.error_verb == 'NotStacked':
2923
raise errors.NotStacked(branch=find('branch'))
2924
elif err.error_verb == 'PermissionDenied':
2926
if len(err.error_args) >= 2:
2927
extra = err.error_args[1]
2930
raise errors.PermissionDenied(path, extra=extra)
2931
elif err.error_verb == 'ReadError':
2933
raise errors.ReadError(path)
2934
elif err.error_verb == 'NoSuchFile':
2936
raise errors.NoSuchFile(path)
2937
elif err.error_verb == 'FileExists':
2938
raise errors.FileExists(err.error_args[0])
2939
elif err.error_verb == 'DirectoryNotEmpty':
2940
raise errors.DirectoryNotEmpty(err.error_args[0])
2941
elif err.error_verb == 'ShortReadvError':
2942
args = err.error_args
2943
raise errors.ShortReadvError(
2944
args[0], int(args[1]), int(args[2]), int(args[3]))
2945
elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
2946
encoding = str(err.error_args[0]) # encoding must always be a string
2947
val = err.error_args[1]
2948
start = int(err.error_args[2])
2949
end = int(err.error_args[3])
2950
reason = str(err.error_args[4]) # reason must always be a string
2951
if val.startswith('u:'):
2952
val = val[2:].decode('utf-8')
2953
elif val.startswith('s:'):
2954
val = val[2:].decode('base64')
2955
if err.error_verb == 'UnicodeDecodeError':
2956
raise UnicodeDecodeError(encoding, val, start, end, reason)
2957
elif err.error_verb == 'UnicodeEncodeError':
2958
raise UnicodeEncodeError(encoding, val, start, end, reason)
2959
elif err.error_verb == 'ReadOnlyError':
2960
raise errors.TransportNotPossible('readonly transport')
2961
raise errors.UnknownErrorFromSmartServer(err)
added
removed
bzrlib/remote.py
