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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 Branch, 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.revision import NULL_REVISION
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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.trace import 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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def destroy_repository(self):
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"""See BzrDir.destroy_repository"""
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self._real_bzrdir.destroy_repository()
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def create_branch(self, name=None):
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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 destroy_branch(self, name=None):
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self._real_bzrdir.create_repository(shared=shared)
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return self.open_repository()
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def create_branch(self):
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real_branch = self._real_bzrdir.create_branch()
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return RemoteBranch(self, self.find_repository(), real_branch)
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def destroy_branch(self):
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"""See BzrDir.destroy_branch"""
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self._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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def create_workingtree(self, revision_id=None):
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raise errors.NotLocalUrl(self.transport.base)
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def find_branch_format(self):
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def get_branch_reference(self):
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"""See BzrDir.get_branch_reference()."""
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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):
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"""See BzrDir._get_tree_branch()."""
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return None, self.open_branch()
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def open_branch(self, 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)
363
if response[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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repo = self._real_bzrdir.open_repository()
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response = response + (repo._format.network_name(),)
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return response, repo
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def _open_repo_v3(self, path):
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verb = 'BzrDir.find_repositoryV3'
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medium = self._client._medium
373
if medium._is_remote_before((1, 13)):
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raise errors.UnknownSmartMethod(verb)
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response = self._call(verb, path)
377
except errors.UnknownSmartMethod:
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medium._remember_remote_is_before((1, 13))
380
if response[0] != 'ok':
381
raise errors.UnexpectedSmartServerResponse(response)
382
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,
390
response, real_repo = probe(path)
392
except errors.UnknownSmartMethod:
395
raise errors.UnknownSmartMethod('BzrDir.find_repository{3,2,}')
396
if response[0] != 'ok':
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raise errors.UnexpectedSmartServerResponse(response)
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if len(response) != 6:
399
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,)
140
if response[0] == 'norepository':
141
raise errors.NoRepositoryPresent(self)
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assert len(response) == 4, 'incorrect response length %s' % (response,)
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143
if response[1] == '':
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# repo is at this dir.
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format = response_tuple_to_repo_format(response[2:])
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# Used to support creating a real format instance when needed.
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format._creating_bzrdir = self
405
remote_repo = RemoteRepository(self, format)
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format._creating_repo = remote_repo
407
if real_repo is not None:
408
remote_repo._set_real_repository(real_repo)
144
format = RemoteRepositoryFormat()
145
format.rich_root_data = (response[2] == 'yes')
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format.supports_tree_reference = (response[3] == 'yes')
147
return RemoteRepository(self, format)
411
149
raise errors.NoRepositoryPresent(self)
413
def has_workingtree(self):
414
if self._has_working_tree is None:
416
self._has_working_tree = self._real_bzrdir.has_workingtree()
417
return self._has_working_tree
419
151
def open_workingtree(self, recommend_upgrade=True):
420
if self.has_workingtree():
153
if self._real_bzrdir.has_workingtree():
421
154
raise errors.NotLocalUrl(self.root_transport)
423
156
raise errors.NoWorkingTree(self.root_transport.base)
465
191
Instances of this repository are represented by RemoteRepository
468
The RemoteRepositoryFormat is parameterized during construction
194
The RemoteRepositoryFormat is parameterised during construction
469
195
to reflect the capabilities of the real, remote format. Specifically
470
196
the attributes rich_root_data and supports_tree_reference are set
471
197
on a per instance basis, and are not set (and should not be) at
474
:ivar _custom_format: If set, a specific concrete repository format that
475
will be used when initializing a repository with this
476
RemoteRepositoryFormat.
477
:ivar _creating_repo: If set, the repository object that this
478
RemoteRepositoryFormat was created for: it can be called into
479
to obtain data like the network name.
482
_matchingbzrdir = RemoteBzrDirFormat()
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repository.RepositoryFormat.__init__(self)
486
self._custom_format = None
487
self._network_name = None
488
self._creating_bzrdir = None
489
self._supports_chks = None
490
self._supports_external_lookups = None
491
self._supports_tree_reference = None
492
self._rich_root_data = None
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return "%s(_network_name=%r)" % (self.__class__.__name__,
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def fast_deltas(self):
501
return self._custom_format.fast_deltas
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def rich_root_data(self):
505
if self._rich_root_data is None:
507
self._rich_root_data = self._custom_format.rich_root_data
508
return self._rich_root_data
511
def supports_chks(self):
512
if self._supports_chks is None:
514
self._supports_chks = self._custom_format.supports_chks
515
return self._supports_chks
518
def supports_external_lookups(self):
519
if self._supports_external_lookups is None:
521
self._supports_external_lookups = \
522
self._custom_format.supports_external_lookups
523
return self._supports_external_lookups
526
def supports_tree_reference(self):
527
if self._supports_tree_reference is None:
529
self._supports_tree_reference = \
530
self._custom_format.supports_tree_reference
531
return self._supports_tree_reference
533
def _vfs_initialize(self, a_bzrdir, shared):
534
"""Helper for common code in initialize."""
535
if self._custom_format:
536
# Custom format requested
537
result = self._custom_format.initialize(a_bzrdir, shared=shared)
538
elif self._creating_bzrdir is not None:
539
# Use the format that the repository we were created to back
541
prior_repo = self._creating_bzrdir.open_repository()
542
prior_repo._ensure_real()
543
result = prior_repo._real_repository._format.initialize(
544
a_bzrdir, shared=shared)
546
# assume that a_bzr is a RemoteBzrDir but the smart server didn't
547
# support remote initialization.
548
# We delegate to a real object at this point (as RemoteBzrDir
549
# delegate to the repository format which would lead to infinite
550
# recursion if we just called a_bzrdir.create_repository.
551
a_bzrdir._ensure_real()
552
result = a_bzrdir._real_bzrdir.create_repository(shared=shared)
553
if not isinstance(result, RemoteRepository):
554
return self.open(a_bzrdir)
201
_matchingbzrdir = RemoteBzrDirFormat
558
203
def initialize(self, a_bzrdir, shared=False):
559
# Being asked to create on a non RemoteBzrDir:
560
if not isinstance(a_bzrdir, RemoteBzrDir):
561
return self._vfs_initialize(a_bzrdir, shared)
562
medium = a_bzrdir._client._medium
563
if medium._is_remote_before((1, 13)):
564
return self._vfs_initialize(a_bzrdir, shared)
565
# Creating on a remote bzr dir.
566
# 1) get the network name to use.
567
if self._custom_format:
568
network_name = self._custom_format.network_name()
569
elif self._network_name:
570
network_name = self._network_name
572
# Select the current bzrlib default and ask for that.
573
reference_bzrdir_format = bzrdir.format_registry.get('default')()
574
reference_format = reference_bzrdir_format.repository_format
575
network_name = reference_format.network_name()
576
# 2) try direct creation via RPC
577
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
578
verb = 'BzrDir.create_repository'
584
response = a_bzrdir._call(verb, path, network_name, shared_str)
585
except errors.UnknownSmartMethod:
586
# Fallback - use vfs methods
587
medium._remember_remote_is_before((1, 13))
588
return self._vfs_initialize(a_bzrdir, shared)
590
# Turn the response into a RemoteRepository object.
591
format = response_tuple_to_repo_format(response[1:])
592
# Used to support creating a real format instance when needed.
593
format._creating_bzrdir = a_bzrdir
594
remote_repo = RemoteRepository(a_bzrdir, format)
595
format._creating_repo = remote_repo
204
assert isinstance(a_bzrdir, RemoteBzrDir), \
205
'%r is not a RemoteBzrDir' % (a_bzrdir,)
206
return a_bzrdir.create_repository(shared=shared)
598
208
def open(self, a_bzrdir):
599
if not isinstance(a_bzrdir, RemoteBzrDir):
600
raise AssertionError('%r is not a RemoteBzrDir' % (a_bzrdir,))
209
assert isinstance(a_bzrdir, RemoteBzrDir)
601
210
return a_bzrdir.open_repository()
603
def _ensure_real(self):
604
if self._custom_format is None:
605
self._custom_format = repository.network_format_registry.get(
609
def _fetch_order(self):
611
return self._custom_format._fetch_order
614
def _fetch_uses_deltas(self):
616
return self._custom_format._fetch_uses_deltas
619
def _fetch_reconcile(self):
621
return self._custom_format._fetch_reconcile
623
212
def get_format_description(self):
625
return 'Remote: ' + self._custom_format.get_format_description()
213
return 'bzr remote repository'
627
215
def __eq__(self, other):
628
return self.__class__ is other.__class__
630
def network_name(self):
631
if self._network_name:
632
return self._network_name
633
self._creating_repo._ensure_real()
634
return self._creating_repo._real_repository._format.network_name()
637
def pack_compresses(self):
639
return self._custom_format.pack_compresses
642
def _serializer(self):
644
return self._custom_format._serializer
647
class RemoteRepository(_RpcHelper, lock._RelockDebugMixin,
648
bzrdir.ControlComponent):
216
return self.__class__ == other.__class__
218
def check_conversion_target(self, target_format):
219
if self.rich_root_data and not target_format.rich_root_data:
220
raise errors.BadConversionTarget(
221
'Does not support rich root data.', target_format)
222
if (self.supports_tree_reference and
223
not getattr(target_format, 'supports_tree_reference', False)):
224
raise errors.BadConversionTarget(
225
'Does not support nested trees', target_format)
228
class RemoteRepository(object):
649
229
"""Repository accessed over rpc.
651
231
For the moment most operations are performed using local transport-backed
677
257
self._lock_token = None
678
258
self._lock_count = 0
679
259
self._leave_lock = False
680
# Cache of revision parents; misses are cached during read locks, and
681
# write locks when no _real_repository has been set.
682
self._unstacked_provider = graph.CachingParentsProvider(
683
get_parent_map=self._get_parent_map_rpc)
684
self._unstacked_provider.disable_cache()
686
# These depend on the actual remote format, so force them off for
687
# maximum compatibility. XXX: In future these should depend on the
688
# remote repository instance, but this is irrelevant until we perform
689
# reconcile via an RPC call.
690
self._reconcile_does_inventory_gc = False
691
self._reconcile_fixes_text_parents = False
692
self._reconcile_backsup_inventory = False
261
self._reconcile_does_inventory_gc = True
693
262
self.base = self.bzrdir.transport.base
694
# Additional places to query for data.
695
self._fallback_repositories = []
698
def user_transport(self):
699
return self.bzrdir.user_transport
702
def control_transport(self):
703
# XXX: Normally you shouldn't directly get at the remote repository
704
# transport, but I'm not sure it's worth making this method
705
# optional -- mbp 2010-04-21
706
return self.bzrdir.get_repository_transport(None)
708
264
def __str__(self):
709
265
return "%s(%s)" % (self.__class__.__name__, self.base)
711
267
__repr__ = __str__
713
def abort_write_group(self, suppress_errors=False):
269
def abort_write_group(self):
714
270
"""Complete a write group on the decorated repository.
716
Smart methods perform operations in a single step so this API
272
Smart methods peform operations in a single step so this api
717
273
is not really applicable except as a compatibility thunk
718
274
for older plugins that don't use e.g. the CommitBuilder
721
:param suppress_errors: see Repository.abort_write_group.
724
return self._real_repository.abort_write_group(
725
suppress_errors=suppress_errors)
729
"""Decorate the real repository for now.
731
In the long term a full blown network facility is needed to avoid
732
creating a real repository object locally.
735
return self._real_repository.chk_bytes
278
return self._real_repository.abort_write_group()
737
280
def commit_write_group(self):
738
281
"""Complete a write group on the decorated repository.
740
Smart methods perform operations in a single step so this API
283
Smart methods peform operations in a single step so this api
741
284
is not really applicable except as a compatibility thunk
742
285
for older plugins that don't use e.g. the CommitBuilder
745
288
self._ensure_real()
746
289
return self._real_repository.commit_write_group()
748
def resume_write_group(self, tokens):
750
return self._real_repository.resume_write_group(tokens)
752
def suspend_write_group(self):
754
return self._real_repository.suspend_write_group()
756
def get_missing_parent_inventories(self, check_for_missing_texts=True):
758
return self._real_repository.get_missing_parent_inventories(
759
check_for_missing_texts=check_for_missing_texts)
761
def _get_rev_id_for_revno_vfs(self, revno, known_pair):
763
return self._real_repository.get_rev_id_for_revno(
766
def get_rev_id_for_revno(self, revno, known_pair):
767
"""See Repository.get_rev_id_for_revno."""
768
path = self.bzrdir._path_for_remote_call(self._client)
770
if self._client._medium._is_remote_before((1, 17)):
771
return self._get_rev_id_for_revno_vfs(revno, known_pair)
772
response = self._call(
773
'Repository.get_rev_id_for_revno', path, revno, known_pair)
774
except errors.UnknownSmartMethod:
775
self._client._medium._remember_remote_is_before((1, 17))
776
return self._get_rev_id_for_revno_vfs(revno, known_pair)
777
if response[0] == 'ok':
778
return True, response[1]
779
elif response[0] == 'history-incomplete':
780
known_pair = response[1:3]
781
for fallback in self._fallback_repositories:
782
found, result = fallback.get_rev_id_for_revno(revno, known_pair)
787
# Not found in any fallbacks
788
return False, known_pair
790
raise errors.UnexpectedSmartServerResponse(response)
792
291
def _ensure_real(self):
793
292
"""Ensure that there is a _real_repository set.
795
294
Used before calls to self._real_repository.
797
Note that _ensure_real causes many roundtrips to the server which are
798
not desirable, and prevents the use of smart one-roundtrip RPC's to
799
perform complex operations (such as accessing parent data, streaming
800
revisions etc). Adding calls to _ensure_real should only be done when
801
bringing up new functionality, adding fallbacks for smart methods that
802
require a fallback path, and never to replace an existing smart method
803
invocation. If in doubt chat to the bzr network team.
805
if self._real_repository is None:
806
if 'hpssvfs' in debug.debug_flags:
808
warning('VFS Repository access triggered\n%s',
809
''.join(traceback.format_stack()))
810
self._unstacked_provider.missing_keys.clear()
296
if not self._real_repository:
811
297
self.bzrdir._ensure_real()
812
self._set_real_repository(
813
self.bzrdir._real_bzrdir.open_repository())
815
def _translate_error(self, err, **context):
816
self.bzrdir._translate_error(err, repository=self, **context)
818
def find_text_key_references(self):
819
"""Find the text key references within the repository.
821
:return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
822
revision_ids. Each altered file-ids has the exact revision_ids that
823
altered it listed explicitly.
824
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
825
to whether they were referred to by the inventory of the
826
revision_id that they contain. The inventory texts from all present
827
revision ids are assessed to generate this report.
830
return self._real_repository.find_text_key_references()
832
def _generate_text_key_index(self):
833
"""Generate a new text key index for the repository.
835
This is an expensive function that will take considerable time to run.
837
:return: A dict mapping (file_id, revision_id) tuples to a list of
838
parents, also (file_id, revision_id) tuples.
841
return self._real_repository._generate_text_key_index()
843
def _get_revision_graph(self, revision_id):
844
"""Private method for using with old (< 1.2) servers to fallback."""
298
#self._real_repository = self.bzrdir._real_bzrdir.open_repository()
299
self._set_real_repository(self.bzrdir._real_bzrdir.open_repository())
301
def get_revision_graph(self, revision_id=None):
302
"""See Repository.get_revision_graph()."""
845
303
if revision_id is None:
847
elif revision.is_null(revision_id):
305
elif revision_id == NULL_REVISION:
850
308
path = self.bzrdir._path_for_remote_call(self._client)
851
response = self._call_expecting_body(
309
assert type(revision_id) is str
310
response = self._client.call_expecting_body(
852
311
'Repository.get_revision_graph', path, revision_id)
853
response_tuple, response_handler = response
854
if response_tuple[0] != 'ok':
855
raise errors.UnexpectedSmartServerResponse(response_tuple)
856
coded = response_handler.read_body_bytes()
858
# no revisions in this repository!
860
lines = coded.split('\n')
863
d = tuple(line.split())
864
revision_graph[d[0]] = d[1:]
866
return revision_graph
869
"""See Repository._get_sink()."""
870
return RemoteStreamSink(self)
872
def _get_source(self, to_format):
873
"""Return a source for streaming from this repository."""
874
return RemoteStreamSource(self, to_format)
312
if response[0][0] not in ['ok', 'nosuchrevision']:
313
raise errors.UnexpectedSmartServerResponse(response[0])
314
if response[0][0] == 'ok':
315
coded = response[1].read_body_bytes()
317
# no revisions in this repository!
319
lines = coded.split('\n')
322
d = tuple(line.split())
323
revision_graph[d[0]] = d[1:]
325
return revision_graph
327
response_body = response[1].read_body_bytes()
328
assert response_body == ''
329
raise NoSuchRevision(self, revision_id)
877
331
def has_revision(self, revision_id):
878
"""True if this repository has a copy of the revision."""
879
# Copy of bzrlib.repository.Repository.has_revision
880
return revision_id in self.has_revisions((revision_id,))
883
def has_revisions(self, revision_ids):
884
"""Probe to find out the presence of multiple revisions.
886
:param revision_ids: An iterable of revision_ids.
887
:return: A set of the revision_ids that were present.
889
# Copy of bzrlib.repository.Repository.has_revisions
890
parent_map = self.get_parent_map(revision_ids)
891
result = set(parent_map)
892
if _mod_revision.NULL_REVISION in revision_ids:
893
result.add(_mod_revision.NULL_REVISION)
896
def _has_same_fallbacks(self, other_repo):
897
"""Returns true if the repositories have the same fallbacks."""
898
# XXX: copied from Repository; it should be unified into a base class
899
# <https://bugs.edge.launchpad.net/bzr/+bug/401622>
900
my_fb = self._fallback_repositories
901
other_fb = other_repo._fallback_repositories
902
if len(my_fb) != len(other_fb):
904
for f, g in zip(my_fb, other_fb):
905
if not f.has_same_location(g):
332
"""See Repository.has_revision()."""
333
if revision_id is None:
334
# The null revision is always present.
336
path = self.bzrdir._path_for_remote_call(self._client)
337
response = self._client.call('Repository.has_revision', path, revision_id)
338
assert response[0] in ('yes', 'no'), 'unexpected response code %s' % (response,)
339
return response[0] == 'yes'
909
341
def has_same_location(self, other):
910
# TODO: Move to RepositoryBase and unify with the regular Repository
911
# one; unfortunately the tests rely on slightly different behaviour at
912
# present -- mbp 20090710
913
return (self.__class__ is other.__class__ and
342
return (self.__class__ == other.__class__ and
914
343
self.bzrdir.transport.base == other.bzrdir.transport.base)
916
345
def get_graph(self, other_repository=None):
917
346
"""Return the graph for this repository format"""
918
parents_provider = self._make_parents_provider(other_repository)
919
return graph.Graph(parents_provider)
922
def get_known_graph_ancestry(self, revision_ids):
923
"""Return the known graph for a set of revision ids and their ancestors.
925
st = static_tuple.StaticTuple
926
revision_keys = [st(r_id).intern() for r_id in revision_ids]
927
known_graph = self.revisions.get_known_graph_ancestry(revision_keys)
928
return graph.GraphThunkIdsToKeys(known_graph)
347
return self._real_repository.get_graph(other_repository)
930
349
def gather_stats(self, revid=None, committers=None):
931
350
"""See Repository.gather_stats()."""
932
351
path = self.bzrdir._path_for_remote_call(self._client)
933
# revid can be None to indicate no revisions, not just NULL_REVISION
934
if revid is None or revision.is_null(revid):
352
if revid in (None, NULL_REVISION):
937
355
fmt_revid = revid
984
394
def is_shared(self):
985
395
"""See Repository.is_shared()."""
986
396
path = self.bzrdir._path_for_remote_call(self._client)
987
response = self._call('Repository.is_shared', path)
988
if response[0] not in ('yes', 'no'):
989
raise SmartProtocolError('unexpected response code %s' % (response,))
397
response = self._client.call('Repository.is_shared', path)
398
assert response[0] in ('yes', 'no'), 'unexpected response code %s' % (response,)
990
399
return response[0] == 'yes'
992
def is_write_locked(self):
993
return self._lock_mode == 'w'
995
def _warn_if_deprecated(self, branch=None):
996
# If we have a real repository, the check will be done there, if we
997
# don't the check will be done remotely.
1000
401
def lock_read(self):
1001
"""Lock the repository for read operations.
1003
:return: An object with an unlock method which will release the lock
1006
402
# wrong eventually - want a local lock cache context
1007
403
if not self._lock_mode:
1008
self._note_lock('r')
1009
404
self._lock_mode = 'r'
1010
405
self._lock_count = 1
1011
self._unstacked_provider.enable_cache(cache_misses=True)
1012
406
if self._real_repository is not None:
1013
407
self._real_repository.lock_read()
1014
for repo in self._fallback_repositories:
1017
409
self._lock_count += 1
1020
411
def _remote_lock_write(self, token):
1021
412
path = self.bzrdir._path_for_remote_call(self._client)
1022
413
if token is None:
1024
err_context = {'token': token}
1025
response = self._call('Repository.lock_write', path, token,
415
response = self._client.call('Repository.lock_write', path, token)
1027
416
if response[0] == 'ok':
1028
417
ok, token = response
419
elif response[0] == 'LockContention':
420
raise errors.LockContention('(remote lock)')
421
elif response[0] == 'UnlockableTransport':
422
raise errors.UnlockableTransport(self.bzrdir.root_transport)
1031
424
raise errors.UnexpectedSmartServerResponse(response)
1033
def lock_write(self, token=None, _skip_rpc=False):
426
def lock_write(self, token=None):
1034
427
if not self._lock_mode:
1035
self._note_lock('w')
1037
if self._lock_token is not None:
1038
if token != self._lock_token:
1039
raise errors.TokenMismatch(token, self._lock_token)
1040
self._lock_token = token
1042
self._lock_token = self._remote_lock_write(token)
1043
# if self._lock_token is None, then this is something like packs or
1044
# svn where we don't get to lock the repo, or a weave style repository
1045
# where we cannot lock it over the wire and attempts to do so will
428
self._lock_token = self._remote_lock_write(token)
429
assert self._lock_token, 'Remote server did not return a token!'
1047
430
if self._real_repository is not None:
1048
431
self._real_repository.lock_write(token=self._lock_token)
1049
432
if token is not None:
1225
560
# FIXME: It ought to be possible to call this without immediately
1226
561
# triggering _ensure_real. For now it's the easiest thing to do.
1227
562
self._ensure_real()
1228
real_repo = self._real_repository
1229
builder = real_repo.get_commit_builder(branch, parents,
563
builder = self._real_repository.get_commit_builder(branch, parents,
1230
564
config, timestamp=timestamp, timezone=timezone,
1231
565
committer=committer, revprops=revprops, revision_id=revision_id)
566
# Make the builder use this RemoteRepository rather than the real one.
567
builder.repository = self
1234
def add_fallback_repository(self, repository):
1235
"""Add a repository to use for looking up data not held locally.
1237
:param repository: A repository.
1239
if not self._format.supports_external_lookups:
1240
raise errors.UnstackableRepositoryFormat(
1241
self._format.network_name(), self.base)
1242
# We need to accumulate additional repositories here, to pass them in
1245
if self.is_locked():
1246
# We will call fallback.unlock() when we transition to the unlocked
1247
# state, so always add a lock here. If a caller passes us a locked
1248
# repository, they are responsible for unlocking it later.
1249
repository.lock_read()
1250
self._check_fallback_repository(repository)
1251
self._fallback_repositories.append(repository)
1252
# If self._real_repository was parameterised already (e.g. because a
1253
# _real_branch had its get_stacked_on_url method called), then the
1254
# repository to be added may already be in the _real_repositories list.
1255
if self._real_repository is not None:
1256
fallback_locations = [repo.user_url for repo in
1257
self._real_repository._fallback_repositories]
1258
if repository.user_url not in fallback_locations:
1259
self._real_repository.add_fallback_repository(repository)
1261
def _check_fallback_repository(self, repository):
1262
"""Check that this repository can fallback to repository safely.
1264
Raise an error if not.
1266
:param repository: A repository to fallback to.
1268
return _mod_repository.InterRepository._assert_same_model(
1271
571
def add_inventory(self, revid, inv, parents):
1272
572
self._ensure_real()
1273
573
return self._real_repository.add_inventory(revid, inv, parents)
1275
def add_inventory_by_delta(self, basis_revision_id, delta, new_revision_id,
1276
parents, basis_inv=None, propagate_caches=False):
1278
return self._real_repository.add_inventory_by_delta(basis_revision_id,
1279
delta, new_revision_id, parents, basis_inv=basis_inv,
1280
propagate_caches=propagate_caches)
1282
576
def add_revision(self, rev_id, rev, inv=None, config=None):
1283
577
self._ensure_real()
1284
578
return self._real_repository.add_revision(
1308
603
return self._real_repository.clone(a_bzrdir, revision_id=revision_id)
1310
605
def make_working_trees(self):
1311
"""See Repository.make_working_trees"""
1313
return self._real_repository.make_working_trees()
1315
def refresh_data(self):
1316
"""Re-read any data needed to to synchronise with disk.
1318
This method is intended to be called after another repository instance
1319
(such as one used by a smart server) has inserted data into the
1320
repository. It may not be called during a write group, but may be
1321
called at any other time.
1323
if self.is_in_write_group():
1324
raise errors.InternalBzrError(
1325
"May not refresh_data while in a write group.")
1326
if self._real_repository is not None:
1327
self._real_repository.refresh_data()
1329
def revision_ids_to_search_result(self, result_set):
1330
"""Convert a set of revision ids to a graph SearchResult."""
1331
result_parents = set()
1332
for parents in self.get_graph().get_parent_map(
1333
result_set).itervalues():
1334
result_parents.update(parents)
1335
included_keys = result_set.intersection(result_parents)
1336
start_keys = result_set.difference(included_keys)
1337
exclude_keys = result_parents.difference(result_set)
1338
result = graph.SearchResult(start_keys, exclude_keys,
1339
len(result_set), result_set)
1343
def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
1344
"""Return the revision ids that other has that this does not.
1346
These are returned in topological order.
1348
revision_id: only return revision ids included by revision_id.
1350
return repository.InterRepository.get(
1351
other, self).search_missing_revision_ids(revision_id, find_ghosts)
1353
def fetch(self, source, revision_id=None, pb=None, find_ghosts=False,
1355
# No base implementation to use as RemoteRepository is not a subclass
1356
# of Repository; so this is a copy of Repository.fetch().
1357
if fetch_spec is not None and revision_id is not None:
1358
raise AssertionError(
1359
"fetch_spec and revision_id are mutually exclusive.")
1360
if self.is_in_write_group():
1361
raise errors.InternalBzrError(
1362
"May not fetch while in a write group.")
1363
# fast path same-url fetch operations
1364
if (self.has_same_location(source)
1365
and fetch_spec is None
1366
and self._has_same_fallbacks(source)):
606
"""RemoteRepositories never create working trees by default."""
609
def fetch(self, source, revision_id=None, pb=None):
610
if self.has_same_location(source):
1367
611
# check that last_revision is in 'from' and then return a
1369
613
if (revision_id is not None and
1370
not revision.is_null(revision_id)):
614
not _mod_revision.is_null(revision_id)):
1371
615
self.get_revision(revision_id)
1373
# if there is no specific appropriate InterRepository, this will get
1374
# the InterRepository base class, which raises an
1375
# IncompatibleRepositories when asked to fetch.
1376
inter = repository.InterRepository.get(source, self)
1377
return inter.fetch(revision_id=revision_id, pb=pb,
1378
find_ghosts=find_ghosts, fetch_spec=fetch_spec)
618
return self._real_repository.fetch(
619
source, revision_id=revision_id, pb=pb)
1380
621
def create_bundle(self, target, base, fileobj, format=None):
1381
622
self._ensure_real()
1382
623
self._real_repository.create_bundle(target, base, fileobj, format)
626
def control_weaves(self):
628
return self._real_repository.control_weaves
1384
630
@needs_read_lock
1385
631
def get_ancestry(self, revision_id, topo_sorted=True):
1386
632
self._ensure_real()
1387
633
return self._real_repository.get_ancestry(revision_id, topo_sorted)
636
def get_inventory_weave(self):
638
return self._real_repository.get_inventory_weave()
1389
640
def fileids_altered_by_revision_ids(self, revision_ids):
1390
641
self._ensure_real()
1391
642
return self._real_repository.fileids_altered_by_revision_ids(revision_ids)
1393
def _get_versioned_file_checker(self, revisions, revision_versions_cache):
1395
return self._real_repository._get_versioned_file_checker(
1396
revisions, revision_versions_cache)
1398
644
def iter_files_bytes(self, desired_files):
1399
645
"""See Repository.iter_file_bytes.
1401
647
self._ensure_real()
1402
648
return self._real_repository.iter_files_bytes(desired_files)
1404
def get_parent_map(self, revision_ids):
1405
"""See bzrlib.Graph.get_parent_map()."""
1406
return self._make_parents_provider().get_parent_map(revision_ids)
1408
def _get_parent_map_rpc(self, keys):
1409
"""Helper for get_parent_map that performs the RPC."""
1410
medium = self._client._medium
1411
if medium._is_remote_before((1, 2)):
1412
# We already found out that the server can't understand
1413
# Repository.get_parent_map requests, so just fetch the whole
1416
# Note that this reads the whole graph, when only some keys are
1417
# wanted. On this old server there's no way (?) to get them all
1418
# in one go, and the user probably will have seen a warning about
1419
# the server being old anyhow.
1420
rg = self._get_revision_graph(None)
1421
# There is an API discrepancy between get_parent_map and
1422
# get_revision_graph. Specifically, a "key:()" pair in
1423
# get_revision_graph just means a node has no parents. For
1424
# "get_parent_map" it means the node is a ghost. So fix up the
1425
# graph to correct this.
1426
# https://bugs.launchpad.net/bzr/+bug/214894
1427
# There is one other "bug" which is that ghosts in
1428
# get_revision_graph() are not returned at all. But we won't worry
1429
# about that for now.
1430
for node_id, parent_ids in rg.iteritems():
1431
if parent_ids == ():
1432
rg[node_id] = (NULL_REVISION,)
1433
rg[NULL_REVISION] = ()
1438
raise ValueError('get_parent_map(None) is not valid')
1439
if NULL_REVISION in keys:
1440
keys.discard(NULL_REVISION)
1441
found_parents = {NULL_REVISION:()}
1443
return found_parents
1446
# TODO(Needs analysis): We could assume that the keys being requested
1447
# from get_parent_map are in a breadth first search, so typically they
1448
# will all be depth N from some common parent, and we don't have to
1449
# have the server iterate from the root parent, but rather from the
1450
# keys we're searching; and just tell the server the keyspace we
1451
# already have; but this may be more traffic again.
1453
# Transform self._parents_map into a search request recipe.
1454
# TODO: Manage this incrementally to avoid covering the same path
1455
# repeatedly. (The server will have to on each request, but the less
1456
# work done the better).
1458
# Negative caching notes:
1459
# new server sends missing when a request including the revid
1460
# 'include-missing:' is present in the request.
1461
# missing keys are serialised as missing:X, and we then call
1462
# provider.note_missing(X) for-all X
1463
parents_map = self._unstacked_provider.get_cached_map()
1464
if parents_map is None:
1465
# Repository is not locked, so there's no cache.
1467
# start_set is all the keys in the cache
1468
start_set = set(parents_map)
1469
# result set is all the references to keys in the cache
1470
result_parents = set()
1471
for parents in parents_map.itervalues():
1472
result_parents.update(parents)
1473
stop_keys = result_parents.difference(start_set)
1474
# We don't need to send ghosts back to the server as a position to
1476
stop_keys.difference_update(self._unstacked_provider.missing_keys)
1477
key_count = len(parents_map)
1478
if (NULL_REVISION in result_parents
1479
and NULL_REVISION in self._unstacked_provider.missing_keys):
1480
# If we pruned NULL_REVISION from the stop_keys because it's also
1481
# in our cache of "missing" keys we need to increment our key count
1482
# by 1, because the reconsitituted SearchResult on the server will
1483
# still consider NULL_REVISION to be an included key.
1485
included_keys = start_set.intersection(result_parents)
1486
start_set.difference_update(included_keys)
1487
recipe = ('manual', start_set, stop_keys, key_count)
1488
body = self._serialise_search_recipe(recipe)
1489
path = self.bzrdir._path_for_remote_call(self._client)
1491
if type(key) is not str:
1493
"key %r not a plain string" % (key,))
1494
verb = 'Repository.get_parent_map'
1495
args = (path, 'include-missing:') + tuple(keys)
1497
response = self._call_with_body_bytes_expecting_body(
1499
except errors.UnknownSmartMethod:
1500
# Server does not support this method, so get the whole graph.
1501
# Worse, we have to force a disconnection, because the server now
1502
# doesn't realise it has a body on the wire to consume, so the
1503
# only way to recover is to abandon the connection.
1505
'Server is too old for fast get_parent_map, reconnecting. '
1506
'(Upgrade the server to Bazaar 1.2 to avoid this)')
1508
# To avoid having to disconnect repeatedly, we keep track of the
1509
# fact the server doesn't understand remote methods added in 1.2.
1510
medium._remember_remote_is_before((1, 2))
1511
# Recurse just once and we should use the fallback code.
1512
return self._get_parent_map_rpc(keys)
1513
response_tuple, response_handler = response
1514
if response_tuple[0] not in ['ok']:
1515
response_handler.cancel_read_body()
1516
raise errors.UnexpectedSmartServerResponse(response_tuple)
1517
if response_tuple[0] == 'ok':
1518
coded = bz2.decompress(response_handler.read_body_bytes())
1520
# no revisions found
1522
lines = coded.split('\n')
1525
d = tuple(line.split())
1527
revision_graph[d[0]] = d[1:]
1530
if d[0].startswith('missing:'):
1532
self._unstacked_provider.note_missing_key(revid)
1534
# no parents - so give the Graph result
1536
revision_graph[d[0]] = (NULL_REVISION,)
1537
return revision_graph
1539
650
@needs_read_lock
1540
651
def get_signature_text(self, revision_id):
1541
652
self._ensure_real()
1542
653
return self._real_repository.get_signature_text(revision_id)
1544
655
@needs_read_lock
1545
def _get_inventory_xml(self, revision_id):
1547
return self._real_repository._get_inventory_xml(revision_id)
656
def get_revision_graph_with_ghosts(self, revision_ids=None):
658
return self._real_repository.get_revision_graph_with_ghosts(
659
revision_ids=revision_ids)
662
def get_inventory_xml(self, revision_id):
664
return self._real_repository.get_inventory_xml(revision_id)
666
def deserialise_inventory(self, revision_id, xml):
668
return self._real_repository.deserialise_inventory(revision_id, xml)
1549
670
def reconcile(self, other=None, thorough=False):
1550
671
self._ensure_real()
1551
672
return self._real_repository.reconcile(other=other, thorough=thorough)
1553
674
def all_revision_ids(self):
1554
675
self._ensure_real()
1555
676
return self._real_repository.all_revision_ids()
1558
def get_deltas_for_revisions(self, revisions, specific_fileids=None):
1560
return self._real_repository.get_deltas_for_revisions(revisions,
1561
specific_fileids=specific_fileids)
1564
def get_revision_delta(self, revision_id, specific_fileids=None):
1566
return self._real_repository.get_revision_delta(revision_id,
1567
specific_fileids=specific_fileids)
679
def get_deltas_for_revisions(self, revisions):
681
return self._real_repository.get_deltas_for_revisions(revisions)
684
def get_revision_delta(self, revision_id):
686
return self._real_repository.get_revision_delta(revision_id)
1569
688
@needs_read_lock
1570
689
def revision_trees(self, revision_ids):
1703
769
def _serializer(self):
1704
return self._format._serializer
771
return self._real_repository._serializer
1706
773
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1707
774
self._ensure_real()
1708
775
return self._real_repository.store_revision_signature(
1709
776
gpg_strategy, plaintext, revision_id)
1711
def add_signature_text(self, revision_id, signature):
1713
return self._real_repository.add_signature_text(revision_id, signature)
1715
778
def has_signature_for_revision_id(self, revision_id):
1716
779
self._ensure_real()
1717
780
return self._real_repository.has_signature_for_revision_id(revision_id)
1719
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1721
return self._real_repository.item_keys_introduced_by(revision_ids,
1722
_files_pb=_files_pb)
1724
def revision_graph_can_have_wrong_parents(self):
1725
# The answer depends on the remote repo format.
1727
return self._real_repository.revision_graph_can_have_wrong_parents()
1729
def _find_inconsistent_revision_parents(self, revisions_iterator=None):
1731
return self._real_repository._find_inconsistent_revision_parents(
1734
def _check_for_inconsistent_revision_parents(self):
1736
return self._real_repository._check_for_inconsistent_revision_parents()
1738
def _make_parents_provider(self, other=None):
1739
providers = [self._unstacked_provider]
1740
if other is not None:
1741
providers.insert(0, other)
1742
providers.extend(r._make_parents_provider() for r in
1743
self._fallback_repositories)
1744
return graph.StackedParentsProvider(providers)
1746
def _serialise_search_recipe(self, recipe):
1747
"""Serialise a graph search recipe.
1749
:param recipe: A search recipe (start, stop, count).
1750
:return: Serialised bytes.
1752
start_keys = ' '.join(recipe[1])
1753
stop_keys = ' '.join(recipe[2])
1754
count = str(recipe[3])
1755
return '\n'.join((start_keys, stop_keys, count))
1757
def _serialise_search_result(self, search_result):
1758
if isinstance(search_result, graph.PendingAncestryResult):
1759
parts = ['ancestry-of']
1760
parts.extend(search_result.heads)
1762
recipe = search_result.get_recipe()
1763
parts = [recipe[0], self._serialise_search_recipe(recipe)]
1764
return '\n'.join(parts)
1767
path = self.bzrdir._path_for_remote_call(self._client)
1769
response = self._call('PackRepository.autopack', path)
1770
except errors.UnknownSmartMethod:
1772
self._real_repository._pack_collection.autopack()
1775
if response[0] != 'ok':
1776
raise errors.UnexpectedSmartServerResponse(response)
1779
class RemoteStreamSink(repository.StreamSink):
1781
def _insert_real(self, stream, src_format, resume_tokens):
1782
self.target_repo._ensure_real()
1783
sink = self.target_repo._real_repository._get_sink()
1784
result = sink.insert_stream(stream, src_format, resume_tokens)
1786
self.target_repo.autopack()
1789
def insert_stream(self, stream, src_format, resume_tokens):
1790
target = self.target_repo
1791
target._unstacked_provider.missing_keys.clear()
1792
candidate_calls = [('Repository.insert_stream_1.19', (1, 19))]
1793
if target._lock_token:
1794
candidate_calls.append(('Repository.insert_stream_locked', (1, 14)))
1795
lock_args = (target._lock_token or '',)
1797
candidate_calls.append(('Repository.insert_stream', (1, 13)))
1799
client = target._client
1800
medium = client._medium
1801
path = target.bzrdir._path_for_remote_call(client)
1802
# Probe for the verb to use with an empty stream before sending the
1803
# real stream to it. We do this both to avoid the risk of sending a
1804
# large request that is then rejected, and because we don't want to
1805
# implement a way to buffer, rewind, or restart the stream.
1807
for verb, required_version in candidate_calls:
1808
if medium._is_remote_before(required_version):
1811
# We've already done the probing (and set _is_remote_before) on
1812
# a previous insert.
1815
byte_stream = smart_repo._stream_to_byte_stream([], src_format)
1817
response = client.call_with_body_stream(
1818
(verb, path, '') + lock_args, byte_stream)
1819
except errors.UnknownSmartMethod:
1820
medium._remember_remote_is_before(required_version)
1826
return self._insert_real(stream, src_format, resume_tokens)
1827
self._last_inv_record = None
1828
self._last_substream = None
1829
if required_version < (1, 19):
1830
# Remote side doesn't support inventory deltas. Wrap the stream to
1831
# make sure we don't send any. If the stream contains inventory
1832
# deltas we'll interrupt the smart insert_stream request and
1834
stream = self._stop_stream_if_inventory_delta(stream)
1835
byte_stream = smart_repo._stream_to_byte_stream(
1837
resume_tokens = ' '.join(resume_tokens)
1838
response = client.call_with_body_stream(
1839
(verb, path, resume_tokens) + lock_args, byte_stream)
1840
if response[0][0] not in ('ok', 'missing-basis'):
1841
raise errors.UnexpectedSmartServerResponse(response)
1842
if self._last_substream is not None:
1843
# The stream included an inventory-delta record, but the remote
1844
# side isn't new enough to support them. So we need to send the
1845
# rest of the stream via VFS.
1846
self.target_repo.refresh_data()
1847
return self._resume_stream_with_vfs(response, src_format)
1848
if response[0][0] == 'missing-basis':
1849
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1850
resume_tokens = tokens
1851
return resume_tokens, set(missing_keys)
1853
self.target_repo.refresh_data()
1856
def _resume_stream_with_vfs(self, response, src_format):
1857
"""Resume sending a stream via VFS, first resending the record and
1858
substream that couldn't be sent via an insert_stream verb.
1860
if response[0][0] == 'missing-basis':
1861
tokens, missing_keys = bencode.bdecode_as_tuple(response[0][1])
1862
# Ignore missing_keys, we haven't finished inserting yet
1865
def resume_substream():
1866
# Yield the substream that was interrupted.
1867
for record in self._last_substream:
1869
self._last_substream = None
1870
def resume_stream():
1871
# Finish sending the interrupted substream
1872
yield ('inventory-deltas', resume_substream())
1873
# Then simply continue sending the rest of the stream.
1874
for substream_kind, substream in self._last_stream:
1875
yield substream_kind, substream
1876
return self._insert_real(resume_stream(), src_format, tokens)
1878
def _stop_stream_if_inventory_delta(self, stream):
1879
"""Normally this just lets the original stream pass-through unchanged.
1881
However if any 'inventory-deltas' substream occurs it will stop
1882
streaming, and store the interrupted substream and stream in
1883
self._last_substream and self._last_stream so that the stream can be
1884
resumed by _resume_stream_with_vfs.
1887
stream_iter = iter(stream)
1888
for substream_kind, substream in stream_iter:
1889
if substream_kind == 'inventory-deltas':
1890
self._last_substream = substream
1891
self._last_stream = stream_iter
1894
yield substream_kind, substream
1897
class RemoteStreamSource(repository.StreamSource):
1898
"""Stream data from a remote server."""
1900
def get_stream(self, search):
1901
if (self.from_repository._fallback_repositories and
1902
self.to_format._fetch_order == 'topological'):
1903
return self._real_stream(self.from_repository, search)
1906
repos = [self.from_repository]
1912
repos.extend(repo._fallback_repositories)
1913
sources.append(repo)
1914
return self.missing_parents_chain(search, sources)
1916
def get_stream_for_missing_keys(self, missing_keys):
1917
self.from_repository._ensure_real()
1918
real_repo = self.from_repository._real_repository
1919
real_source = real_repo._get_source(self.to_format)
1920
return real_source.get_stream_for_missing_keys(missing_keys)
1922
def _real_stream(self, repo, search):
1923
"""Get a stream for search from repo.
1925
This never called RemoteStreamSource.get_stream, and is a heler
1926
for RemoteStreamSource._get_stream to allow getting a stream
1927
reliably whether fallback back because of old servers or trying
1928
to stream from a non-RemoteRepository (which the stacked support
1931
source = repo._get_source(self.to_format)
1932
if isinstance(source, RemoteStreamSource):
1934
source = repo._real_repository._get_source(self.to_format)
1935
return source.get_stream(search)
1937
def _get_stream(self, repo, search):
1938
"""Core worker to get a stream from repo for search.
1940
This is used by both get_stream and the stacking support logic. It
1941
deliberately gets a stream for repo which does not need to be
1942
self.from_repository. In the event that repo is not Remote, or
1943
cannot do a smart stream, a fallback is made to the generic
1944
repository._get_stream() interface, via self._real_stream.
1946
In the event of stacking, streams from _get_stream will not
1947
contain all the data for search - this is normal (see get_stream).
1949
:param repo: A repository.
1950
:param search: A search.
1952
# Fallbacks may be non-smart
1953
if not isinstance(repo, RemoteRepository):
1954
return self._real_stream(repo, search)
1955
client = repo._client
1956
medium = client._medium
1957
path = repo.bzrdir._path_for_remote_call(client)
1958
search_bytes = repo._serialise_search_result(search)
1959
args = (path, self.to_format.network_name())
1961
('Repository.get_stream_1.19', (1, 19)),
1962
('Repository.get_stream', (1, 13))]
1964
for verb, version in candidate_verbs:
1965
if medium._is_remote_before(version):
1968
response = repo._call_with_body_bytes_expecting_body(
1969
verb, args, search_bytes)
1970
except errors.UnknownSmartMethod:
1971
medium._remember_remote_is_before(version)
1973
response_tuple, response_handler = response
1977
return self._real_stream(repo, search)
1978
if response_tuple[0] != 'ok':
1979
raise errors.UnexpectedSmartServerResponse(response_tuple)
1980
byte_stream = response_handler.read_streamed_body()
1981
src_format, stream = smart_repo._byte_stream_to_stream(byte_stream)
1982
if src_format.network_name() != repo._format.network_name():
1983
raise AssertionError(
1984
"Mismatched RemoteRepository and stream src %r, %r" % (
1985
src_format.network_name(), repo._format.network_name()))
1988
def missing_parents_chain(self, search, sources):
1989
"""Chain multiple streams together to handle stacking.
1991
:param search: The overall search to satisfy with streams.
1992
:param sources: A list of Repository objects to query.
1994
self.from_serialiser = self.from_repository._format._serializer
1995
self.seen_revs = set()
1996
self.referenced_revs = set()
1997
# If there are heads in the search, or the key count is > 0, we are not
1999
while not search.is_empty() and len(sources) > 1:
2000
source = sources.pop(0)
2001
stream = self._get_stream(source, search)
2002
for kind, substream in stream:
2003
if kind != 'revisions':
2004
yield kind, substream
2006
yield kind, self.missing_parents_rev_handler(substream)
2007
search = search.refine(self.seen_revs, self.referenced_revs)
2008
self.seen_revs = set()
2009
self.referenced_revs = set()
2010
if not search.is_empty():
2011
for kind, stream in self._get_stream(sources[0], search):
2014
def missing_parents_rev_handler(self, substream):
2015
for content in substream:
2016
revision_bytes = content.get_bytes_as('fulltext')
2017
revision = self.from_serialiser.read_revision_from_string(
2019
self.seen_revs.add(content.key[-1])
2020
self.referenced_revs.update(revision.parent_ids)
2024
783
class RemoteBranchLockableFiles(LockableFiles):
2025
784
"""A 'LockableFiles' implementation that talks to a smart server.
2027
786
This is not a public interface class.
2040
799
self._dir_mode = None
2041
800
self._file_mode = None
803
"""'get' a remote path as per the LockableFiles interface.
805
:param path: the file to 'get'. If this is 'branch.conf', we do not
806
just retrieve a file, instead we ask the smart server to generate
807
a configuration for us - which is retrieved as an INI file.
809
if path == 'branch.conf':
810
path = self.bzrdir._path_for_remote_call(self._client)
811
response = self._client.call_expecting_body(
812
'Branch.get_config_file', path)
813
assert response[0][0] == 'ok', \
814
'unexpected response code %s' % (response[0],)
815
return StringIO(response[1].read_body_bytes())
818
return LockableFiles.get(self, path)
2044
821
class RemoteBranchFormat(branch.BranchFormat):
2046
def __init__(self, network_name=None):
2047
super(RemoteBranchFormat, self).__init__()
2048
self._matchingbzrdir = RemoteBzrDirFormat()
2049
self._matchingbzrdir.set_branch_format(self)
2050
self._custom_format = None
2051
self._network_name = network_name
2053
823
def __eq__(self, other):
2054
return (isinstance(other, RemoteBranchFormat) and
824
return (isinstance(other, RemoteBranchFormat) and
2055
825
self.__dict__ == other.__dict__)
2057
def _ensure_real(self):
2058
if self._custom_format is None:
2059
self._custom_format = branch.network_format_registry.get(
2062
827
def get_format_description(self):
2064
return 'Remote: ' + self._custom_format.get_format_description()
2066
def network_name(self):
2067
return self._network_name
2069
def open(self, a_bzrdir, name=None, ignore_fallbacks=False):
2070
return a_bzrdir.open_branch(name=name,
2071
ignore_fallbacks=ignore_fallbacks)
2073
def _vfs_initialize(self, a_bzrdir, name):
2074
# Initialisation when using a local bzrdir object, or a non-vfs init
2075
# method is not available on the server.
2076
# self._custom_format is always set - the start of initialize ensures
2078
if isinstance(a_bzrdir, RemoteBzrDir):
2079
a_bzrdir._ensure_real()
2080
result = self._custom_format.initialize(a_bzrdir._real_bzrdir,
2083
# We assume the bzrdir is parameterised; it may not be.
2084
result = self._custom_format.initialize(a_bzrdir, name)
2085
if (isinstance(a_bzrdir, RemoteBzrDir) and
2086
not isinstance(result, RemoteBranch)):
2087
result = RemoteBranch(a_bzrdir, a_bzrdir.find_repository(), result,
2091
def initialize(self, a_bzrdir, name=None):
2092
# 1) get the network name to use.
2093
if self._custom_format:
2094
network_name = self._custom_format.network_name()
2096
# Select the current bzrlib default and ask for that.
2097
reference_bzrdir_format = bzrdir.format_registry.get('default')()
2098
reference_format = reference_bzrdir_format.get_branch_format()
2099
self._custom_format = reference_format
2100
network_name = reference_format.network_name()
2101
# Being asked to create on a non RemoteBzrDir:
2102
if not isinstance(a_bzrdir, RemoteBzrDir):
2103
return self._vfs_initialize(a_bzrdir, name=name)
2104
medium = a_bzrdir._client._medium
2105
if medium._is_remote_before((1, 13)):
2106
return self._vfs_initialize(a_bzrdir, name=name)
2107
# Creating on a remote bzr dir.
2108
# 2) try direct creation via RPC
2109
path = a_bzrdir._path_for_remote_call(a_bzrdir._client)
2110
if name is not None:
2111
# XXX JRV20100304: Support creating colocated branches
2112
raise errors.NoColocatedBranchSupport(self)
2113
verb = 'BzrDir.create_branch'
2115
response = a_bzrdir._call(verb, path, network_name)
2116
except errors.UnknownSmartMethod:
2117
# Fallback - use vfs methods
2118
medium._remember_remote_is_before((1, 13))
2119
return self._vfs_initialize(a_bzrdir, name=name)
2120
if response[0] != 'ok':
2121
raise errors.UnexpectedSmartServerResponse(response)
2122
# Turn the response into a RemoteRepository object.
2123
format = RemoteBranchFormat(network_name=response[1])
2124
repo_format = response_tuple_to_repo_format(response[3:])
2125
if response[2] == '':
2126
repo_bzrdir = a_bzrdir
2128
repo_bzrdir = RemoteBzrDir(
2129
a_bzrdir.root_transport.clone(response[2]), a_bzrdir._format,
2131
remote_repo = RemoteRepository(repo_bzrdir, repo_format)
2132
remote_branch = RemoteBranch(a_bzrdir, remote_repo,
2133
format=format, setup_stacking=False, name=name)
2134
# XXX: We know this is a new branch, so it must have revno 0, revid
2135
# NULL_REVISION. Creating the branch locked would make this be unable
2136
# to be wrong; here its simply very unlikely to be wrong. RBC 20090225
2137
remote_branch._last_revision_info_cache = 0, NULL_REVISION
2138
return remote_branch
2140
def make_tags(self, branch):
2142
return self._custom_format.make_tags(branch)
828
return 'Remote BZR Branch'
830
def get_format_string(self):
831
return 'Remote BZR Branch'
833
def open(self, a_bzrdir):
834
assert isinstance(a_bzrdir, RemoteBzrDir)
835
return a_bzrdir.open_branch()
837
def initialize(self, a_bzrdir):
838
assert isinstance(a_bzrdir, RemoteBzrDir)
839
return a_bzrdir.create_branch()
2144
841
def supports_tags(self):
2145
842
# Remote branches might support tags, but we won't know until we
2146
843
# access the real remote branch.
2148
return self._custom_format.supports_tags()
2150
def supports_stacking(self):
2152
return self._custom_format.supports_stacking()
2154
def supports_set_append_revisions_only(self):
2156
return self._custom_format.supports_set_append_revisions_only()
2159
class RemoteBranch(branch.Branch, _RpcHelper, lock._RelockDebugMixin):
847
class RemoteBranch(branch.Branch):
2160
848
"""Branch stored on a server accessed by HPSS RPC.
2162
850
At the moment most operations are mapped down to simple file operations.
2165
853
def __init__(self, remote_bzrdir, remote_repository, real_branch=None,
2166
_client=None, format=None, setup_stacking=True, name=None):
2167
855
"""Create a RemoteBranch instance.
2169
857
:param real_branch: An optional local implementation of the branch
2170
858
format, usually accessing the data via the VFS.
2171
859
:param _client: Private parameter for testing.
2172
:param format: A RemoteBranchFormat object, None to create one
2173
automatically. If supplied it should have a network_name already
2175
:param setup_stacking: If True make an RPC call to determine the
2176
stacked (or not) status of the branch. If False assume the branch
2178
:param name: Colocated branch name
2180
861
# We intentionally don't call the parent class's __init__, because it
2181
862
# will try to assign to self.tags, which is a property in this subclass.
2182
863
# And the parent's __init__ doesn't do much anyway.
864
self._revision_history_cache = None
2183
865
self.bzrdir = remote_bzrdir
2184
866
if _client is not None:
2185
867
self._client = _client
2187
self._client = remote_bzrdir._client
869
self._client = client._SmartClient(self.bzrdir._shared_medium)
2188
870
self.repository = remote_repository
2189
871
if real_branch is not None:
2190
872
self._real_branch = real_branch
2268
900
Used before calls to self._real_branch.
2270
if self._real_branch is None:
2271
if not vfs.vfs_enabled():
2272
raise AssertionError('smart server vfs must be enabled '
2273
'to use vfs implementation')
902
if not self._real_branch:
903
assert vfs.vfs_enabled()
2274
904
self.bzrdir._ensure_real()
2275
self._real_branch = self.bzrdir._real_bzrdir.open_branch(
2276
ignore_fallbacks=self._real_ignore_fallbacks, name=self._name)
2277
if self.repository._real_repository is None:
2278
# Give the remote repository the matching real repo.
2279
real_repo = self._real_branch.repository
2280
if isinstance(real_repo, RemoteRepository):
2281
real_repo._ensure_real()
2282
real_repo = real_repo._real_repository
2283
self.repository._set_real_repository(real_repo)
2284
# Give the real branch the remote repository to let fast-pathing
905
self._real_branch = self.bzrdir._real_bzrdir.open_branch()
906
# Give the remote repository the matching real repo.
907
real_repo = self._real_branch.repository
908
if isinstance(real_repo, RemoteRepository):
909
real_repo._ensure_real()
910
real_repo = real_repo._real_repository
911
self.repository._set_real_repository(real_repo)
912
# Give the branch the remote repository to let fast-pathing happen.
2286
913
self._real_branch.repository = self.repository
914
# XXX: deal with _lock_mode == 'w'
2287
915
if self._lock_mode == 'r':
2288
916
self._real_branch.lock_read()
2289
elif self._lock_mode == 'w':
2290
self._real_branch.lock_write(token=self._lock_token)
2292
def _translate_error(self, err, **context):
2293
self.repository._translate_error(err, branch=self, **context)
2295
def _clear_cached_state(self):
2296
super(RemoteBranch, self)._clear_cached_state()
2297
if self._real_branch is not None:
2298
self._real_branch._clear_cached_state()
2300
def _clear_cached_state_of_remote_branch_only(self):
2301
"""Like _clear_cached_state, but doesn't clear the cache of
2304
This is useful when falling back to calling a method of
2305
self._real_branch that changes state. In that case the underlying
2306
branch changes, so we need to invalidate this RemoteBranch's cache of
2307
it. However, there's no need to invalidate the _real_branch's cache
2308
too, in fact doing so might harm performance.
2310
super(RemoteBranch, self)._clear_cached_state()
2313
919
def control_files(self):
2328
934
self._ensure_real()
2329
935
return self._real_branch.get_physical_lock_status()
2331
def get_stacked_on_url(self):
2332
"""Get the URL this branch is stacked against.
2334
:raises NotStacked: If the branch is not stacked.
2335
:raises UnstackableBranchFormat: If the branch does not support
2337
:raises UnstackableRepositoryFormat: If the repository does not support
2341
# there may not be a repository yet, so we can't use
2342
# self._translate_error, so we can't use self._call either.
2343
response = self._client.call('Branch.get_stacked_on_url',
2344
self._remote_path())
2345
except errors.ErrorFromSmartServer, err:
2346
# there may not be a repository yet, so we can't call through
2347
# its _translate_error
2348
_translate_error(err, branch=self)
2349
except errors.UnknownSmartMethod, err:
2351
return self._real_branch.get_stacked_on_url()
2352
if response[0] != 'ok':
2353
raise errors.UnexpectedSmartServerResponse(response)
2356
def set_stacked_on_url(self, url):
2357
branch.Branch.set_stacked_on_url(self, url)
2359
self._is_stacked = False
2361
self._is_stacked = True
2363
def _vfs_get_tags_bytes(self):
2365
return self._real_branch._get_tags_bytes()
2367
def _get_tags_bytes(self):
2368
medium = self._client._medium
2369
if medium._is_remote_before((1, 13)):
2370
return self._vfs_get_tags_bytes()
2372
response = self._call('Branch.get_tags_bytes', self._remote_path())
2373
except errors.UnknownSmartMethod:
2374
medium._remember_remote_is_before((1, 13))
2375
return self._vfs_get_tags_bytes()
2378
def _vfs_set_tags_bytes(self, bytes):
2380
return self._real_branch._set_tags_bytes(bytes)
2382
def _set_tags_bytes(self, bytes):
2383
medium = self._client._medium
2384
if medium._is_remote_before((1, 18)):
2385
self._vfs_set_tags_bytes(bytes)
2389
self._remote_path(), self._lock_token, self._repo_lock_token)
2390
response = self._call_with_body_bytes(
2391
'Branch.set_tags_bytes', args, bytes)
2392
except errors.UnknownSmartMethod:
2393
medium._remember_remote_is_before((1, 18))
2394
self._vfs_set_tags_bytes(bytes)
2396
937
def lock_read(self):
2397
"""Lock the branch for read operations.
2399
:return: An object with an unlock method which will release the lock
2402
self.repository.lock_read()
2403
938
if not self._lock_mode:
2404
self._note_lock('r')
2405
939
self._lock_mode = 'r'
2406
940
self._lock_count = 1
2407
941
if self._real_branch is not None:
2408
942
self._real_branch.lock_read()
2410
944
self._lock_count += 1
2413
946
def _remote_lock_write(self, token):
2414
947
if token is None:
2415
948
branch_token = repo_token = ''
2417
950
branch_token = token
2418
repo_token = self.repository.lock_write().repository_token
951
repo_token = self.repository.lock_write()
2419
952
self.repository.unlock()
2420
err_context = {'token': token}
2421
response = self._call(
2422
'Branch.lock_write', self._remote_path(), branch_token,
2423
repo_token or '', **err_context)
2424
if response[0] != 'ok':
953
path = self.bzrdir._path_for_remote_call(self._client)
954
response = self._client.call('Branch.lock_write', path, branch_token,
956
if response[0] == 'ok':
957
ok, branch_token, repo_token = response
958
return branch_token, repo_token
959
elif response[0] == 'LockContention':
960
raise errors.LockContention('(remote lock)')
961
elif response[0] == 'TokenMismatch':
962
raise errors.TokenMismatch(token, '(remote token)')
963
elif response[0] == 'UnlockableTransport':
964
raise errors.UnlockableTransport(self.bzrdir.root_transport)
965
elif response[0] == 'ReadOnlyError':
966
raise errors.ReadOnlyError(self)
2425
968
raise errors.UnexpectedSmartServerResponse(response)
2426
ok, branch_token, repo_token = response
2427
return branch_token, repo_token
2429
970
def lock_write(self, token=None):
2430
971
if not self._lock_mode:
2431
self._note_lock('w')
2432
# Lock the branch and repo in one remote call.
2433
972
remote_tokens = self._remote_lock_write(token)
2434
973
self._lock_token, self._repo_lock_token = remote_tokens
2435
if not self._lock_token:
2436
raise SmartProtocolError('Remote server did not return a token!')
2437
# Tell the self.repository object that it is locked.
2438
self.repository.lock_write(
2439
self._repo_lock_token, _skip_rpc=True)
974
assert self._lock_token, 'Remote server did not return a token!'
975
# TODO: We really, really, really don't want to call _ensure_real
976
# here, but it's the easiest way to ensure coherency between the
977
# state of the RemoteBranch and RemoteRepository objects and the
978
# physical locks. If we don't materialise the real objects here,
979
# then getting everything in the right state later is complex, so
980
# for now we just do it the lazy way.
981
# -- Andrew Bennetts, 2007-02-22.
2441
983
if self._real_branch is not None:
2442
self._real_branch.lock_write(token=self._lock_token)
984
self._real_branch.repository.lock_write(
985
token=self._repo_lock_token)
987
self._real_branch.lock_write(token=self._lock_token)
989
self._real_branch.repository.unlock()
2443
990
if token is not None:
2444
991
self._leave_lock = True
993
# XXX: this case seems to be unreachable; token cannot be None.
2446
994
self._leave_lock = False
2447
995
self._lock_mode = 'w'
2448
996
self._lock_count = 1
2450
998
raise errors.ReadOnlyTransaction
2452
1000
if token is not None:
2453
# A token was given to lock_write, and we're relocking, so
2454
# check that the given token actually matches the one we
1001
# A token was given to lock_write, and we're relocking, so check
1002
# that the given token actually matches the one we already have.
2456
1003
if token != self._lock_token:
2457
1004
raise errors.TokenMismatch(token, self._lock_token)
2458
1005
self._lock_count += 1
2459
# Re-lock the repository too.
2460
self.repository.lock_write(self._repo_lock_token)
2461
return BranchWriteLockResult(self.unlock, self._lock_token or None)
1006
return self._lock_token
2463
1008
def _unlock(self, branch_token, repo_token):
2464
err_context = {'token': str((branch_token, repo_token))}
2465
response = self._call(
2466
'Branch.unlock', self._remote_path(), branch_token,
2467
repo_token or '', **err_context)
1009
path = self.bzrdir._path_for_remote_call(self._client)
1010
response = self._client.call('Branch.unlock', path, branch_token,
2468
1012
if response == ('ok',):
2470
raise errors.UnexpectedSmartServerResponse(response)
1014
elif response[0] == 'TokenMismatch':
1015
raise errors.TokenMismatch(
1016
str((branch_token, repo_token)), '(remote tokens)')
1018
raise errors.UnexpectedSmartServerResponse(response)
2472
@only_raises(errors.LockNotHeld, errors.LockBroken)
2473
1020
def unlock(self):
2475
self._lock_count -= 1
2476
if not self._lock_count:
2477
self._clear_cached_state()
2478
mode = self._lock_mode
2479
self._lock_mode = None
2480
if self._real_branch is not None:
2481
if (not self._leave_lock and mode == 'w' and
2482
self._repo_lock_token):
2483
# If this RemoteBranch will remove the physical lock
2484
# for the repository, make sure the _real_branch
2485
# doesn't do it first. (Because the _real_branch's
2486
# repository is set to be the RemoteRepository.)
2487
self._real_branch.repository.leave_lock_in_place()
2488
self._real_branch.unlock()
2490
# Only write-locked branched need to make a remote method
2491
# call to perform the unlock.
2493
if not self._lock_token:
2494
raise AssertionError('Locked, but no token!')
2495
branch_token = self._lock_token
2496
repo_token = self._repo_lock_token
2497
self._lock_token = None
2498
self._repo_lock_token = None
1021
self._lock_count -= 1
1022
if not self._lock_count:
1023
self._clear_cached_state()
1024
mode = self._lock_mode
1025
self._lock_mode = None
1026
if self._real_branch is not None:
2499
1027
if not self._leave_lock:
2500
self._unlock(branch_token, repo_token)
2502
self.repository.unlock()
1028
# If this RemoteBranch will remove the physical lock for the
1029
# repository, make sure the _real_branch doesn't do it
1030
# first. (Because the _real_branch's repository is set to
1031
# be the RemoteRepository.)
1032
self._real_branch.repository.leave_lock_in_place()
1033
self._real_branch.unlock()
1035
# Only write-locked branched need to make a remote method call
1036
# to perfom the unlock.
1038
assert self._lock_token, 'Locked, but no token!'
1039
branch_token = self._lock_token
1040
repo_token = self._repo_lock_token
1041
self._lock_token = None
1042
self._repo_lock_token = None
1043
if not self._leave_lock:
1044
self._unlock(branch_token, repo_token)
2504
1046
def break_lock(self):
2505
1047
self._ensure_real()
2506
1048
return self._real_branch.break_lock()
2508
1050
def leave_lock_in_place(self):
2509
if not self._lock_token:
2510
raise NotImplementedError(self.leave_lock_in_place)
2511
1051
self._leave_lock = True
2513
1053
def dont_leave_lock_in_place(self):
2514
if not self._lock_token:
2515
raise NotImplementedError(self.dont_leave_lock_in_place)
2516
1054
self._leave_lock = False
2519
def get_rev_id(self, revno, history=None):
2521
return _mod_revision.NULL_REVISION
2522
last_revision_info = self.last_revision_info()
2523
ok, result = self.repository.get_rev_id_for_revno(
2524
revno, last_revision_info)
2527
missing_parent = result[1]
2528
# Either the revision named by the server is missing, or its parent
2529
# is. Call get_parent_map to determine which, so that we report a
2531
parent_map = self.repository.get_parent_map([missing_parent])
2532
if missing_parent in parent_map:
2533
missing_parent = parent_map[missing_parent]
2534
raise errors.RevisionNotPresent(missing_parent, self.repository)
2536
def _last_revision_info(self):
2537
response = self._call('Branch.last_revision_info', self._remote_path())
2538
if response[0] != 'ok':
2539
raise SmartProtocolError('unexpected response code %s' % (response,))
1056
def last_revision_info(self):
1057
"""See Branch.last_revision_info()."""
1058
path = self.bzrdir._path_for_remote_call(self._client)
1059
response = self._client.call('Branch.last_revision_info', path)
1060
assert response[0] == 'ok', 'unexpected response code %s' % (response,)
2540
1061
revno = int(response[1])
2541
1062
last_revision = response[2]
2542
1063
return (revno, last_revision)
2544
1065
def _gen_revision_history(self):
2545
1066
"""See Branch._gen_revision_history()."""
2546
if self._is_stacked:
2548
return self._real_branch._gen_revision_history()
2549
response_tuple, response_handler = self._call_expecting_body(
2550
'Branch.revision_history', self._remote_path())
2551
if response_tuple[0] != 'ok':
2552
raise errors.UnexpectedSmartServerResponse(response_tuple)
2553
result = response_handler.read_body_bytes().split('\x00')
1067
path = self.bzrdir._path_for_remote_call(self._client)
1068
response = self._client.call_expecting_body(
1069
'Branch.revision_history', path)
1070
assert response[0][0] == 'ok', ('unexpected response code %s'
1072
result = response[1].read_body_bytes().split('\x00')
2554
1073
if result == ['']:
2558
def _remote_path(self):
2559
return self.bzrdir._path_for_remote_call(self._client)
2561
def _set_last_revision_descendant(self, revision_id, other_branch,
2562
allow_diverged=False, allow_overwrite_descendant=False):
2563
# This performs additional work to meet the hook contract; while its
2564
# undesirable, we have to synthesise the revno to call the hook, and
2565
# not calling the hook is worse as it means changes can't be prevented.
2566
# Having calculated this though, we can't just call into
2567
# set_last_revision_info as a simple call, because there is a set_rh
2568
# hook that some folk may still be using.
2569
old_revno, old_revid = self.last_revision_info()
2570
history = self._lefthand_history(revision_id)
2571
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2572
err_context = {'other_branch': other_branch}
2573
response = self._call('Branch.set_last_revision_ex',
2574
self._remote_path(), self._lock_token, self._repo_lock_token,
2575
revision_id, int(allow_diverged), int(allow_overwrite_descendant),
2577
self._clear_cached_state()
2578
if len(response) != 3 and response[0] != 'ok':
2579
raise errors.UnexpectedSmartServerResponse(response)
2580
new_revno, new_revision_id = response[1:]
2581
self._last_revision_info_cache = new_revno, new_revision_id
2582
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2583
if self._real_branch is not None:
2584
cache = new_revno, new_revision_id
2585
self._real_branch._last_revision_info_cache = cache
2587
def _set_last_revision(self, revision_id):
2588
old_revno, old_revid = self.last_revision_info()
2589
# This performs additional work to meet the hook contract; while its
2590
# undesirable, we have to synthesise the revno to call the hook, and
2591
# not calling the hook is worse as it means changes can't be prevented.
2592
# Having calculated this though, we can't just call into
2593
# set_last_revision_info as a simple call, because there is a set_rh
2594
# hook that some folk may still be using.
2595
history = self._lefthand_history(revision_id)
2596
self._run_pre_change_branch_tip_hooks(len(history), revision_id)
2597
self._clear_cached_state()
2598
response = self._call('Branch.set_last_revision',
2599
self._remote_path(), self._lock_token, self._repo_lock_token,
2601
if response != ('ok',):
2602
raise errors.UnexpectedSmartServerResponse(response)
2603
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2605
1077
@needs_write_lock
2606
1078
def set_revision_history(self, rev_history):
2607
1079
# Send just the tip revision of the history; the server will generate
2608
1080
# the full history from that. If the revision doesn't exist in this
2609
1081
# branch, NoSuchRevision will be raised.
1082
path = self.bzrdir._path_for_remote_call(self._client)
2610
1083
if rev_history == []:
2611
1084
rev_id = 'null:'
2613
1086
rev_id = rev_history[-1]
2614
self._set_last_revision(rev_id)
2615
for hook in branch.Branch.hooks['set_rh']:
2616
hook(self, rev_history)
1087
self._clear_cached_state()
1088
response = self._client.call('Branch.set_last_revision',
1089
path, self._lock_token, self._repo_lock_token, rev_id)
1090
if response[0] == 'NoSuchRevision':
1091
raise NoSuchRevision(self, rev_id)
1093
assert response == ('ok',), (
1094
'unexpected response code %r' % (response,))
2617
1095
self._cache_revision_history(rev_history)
2619
def _get_parent_location(self):
2620
medium = self._client._medium
2621
if medium._is_remote_before((1, 13)):
2622
return self._vfs_get_parent_location()
2624
response = self._call('Branch.get_parent', self._remote_path())
2625
except errors.UnknownSmartMethod:
2626
medium._remember_remote_is_before((1, 13))
2627
return self._vfs_get_parent_location()
2628
if len(response) != 1:
2629
raise errors.UnexpectedSmartServerResponse(response)
2630
parent_location = response[0]
2631
if parent_location == '':
2633
return parent_location
2635
def _vfs_get_parent_location(self):
2637
return self._real_branch._get_parent_location()
2639
def _set_parent_location(self, url):
2640
medium = self._client._medium
2641
if medium._is_remote_before((1, 15)):
2642
return self._vfs_set_parent_location(url)
2644
call_url = url or ''
2645
if type(call_url) is not str:
2646
raise AssertionError('url must be a str or None (%s)' % url)
2647
response = self._call('Branch.set_parent_location',
2648
self._remote_path(), self._lock_token, self._repo_lock_token,
2650
except errors.UnknownSmartMethod:
2651
medium._remember_remote_is_before((1, 15))
2652
return self._vfs_set_parent_location(url)
2654
raise errors.UnexpectedSmartServerResponse(response)
2656
def _vfs_set_parent_location(self, url):
2658
return self._real_branch._set_parent_location(url)
1097
def get_parent(self):
1099
return self._real_branch.get_parent()
1101
def set_parent(self, url):
1103
return self._real_branch.set_parent(url)
1105
def get_config(self):
1106
return RemoteBranchConfig(self)
1108
def sprout(self, to_bzrdir, revision_id=None):
1109
# Like Branch.sprout, except that it sprouts a branch in the default
1110
# format, because RemoteBranches can't be created at arbitrary URLs.
1111
# XXX: if to_bzrdir is a RemoteBranch, this should perhaps do
1112
# to_bzrdir.create_branch...
1113
result = branch.BranchFormat.get_default_format().initialize(to_bzrdir)
1114
self.copy_content_into(result, revision_id=revision_id)
1115
result.set_parent(self.bzrdir.root_transport.base)
2660
1118
@needs_write_lock
2661
1119
def pull(self, source, overwrite=False, stop_revision=None,
2663
self._clear_cached_state_of_remote_branch_only()
1121
# FIXME: This asks the real branch to run the hooks, which means
1122
# they're called with the wrong target branch parameter.
1123
# The test suite specifically allows this at present but it should be
1124
# fixed. It should get a _override_hook_target branch,
1125
# as push does. -- mbp 20070405
2664
1126
self._ensure_real()
2665
return self._real_branch.pull(
1127
self._real_branch.pull(
2666
1128
source, overwrite=overwrite, stop_revision=stop_revision,
2667
_override_hook_target=self, **kwargs)
2669
1131
@needs_read_lock
2670
1132
def push(self, target, overwrite=False, stop_revision=None):
2676
1138
def is_locked(self):
2677
1139
return self._lock_count >= 1
2680
def revision_id_to_revno(self, revision_id):
2682
return self._real_branch.revision_id_to_revno(revision_id)
2685
1141
def set_last_revision_info(self, revno, revision_id):
2686
# XXX: These should be returned by the set_last_revision_info verb
2687
old_revno, old_revid = self.last_revision_info()
2688
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2689
revision_id = ensure_null(revision_id)
2691
response = self._call('Branch.set_last_revision_info',
2692
self._remote_path(), self._lock_token, self._repo_lock_token,
2693
str(revno), revision_id)
2694
except errors.UnknownSmartMethod:
2696
self._clear_cached_state_of_remote_branch_only()
2697
self._real_branch.set_last_revision_info(revno, revision_id)
2698
self._last_revision_info_cache = revno, revision_id
2700
if response == ('ok',):
2701
self._clear_cached_state()
2702
self._last_revision_info_cache = revno, revision_id
2703
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2704
# Update the _real_branch's cache too.
2705
if self._real_branch is not None:
2706
cache = self._last_revision_info_cache
2707
self._real_branch._last_revision_info_cache = cache
2709
raise errors.UnexpectedSmartServerResponse(response)
1143
self._clear_cached_state()
1144
return self._real_branch.set_last_revision_info(revno, revision_id)
2712
1146
def generate_revision_history(self, revision_id, last_rev=None,
2713
1147
other_branch=None):
2714
medium = self._client._medium
2715
if not medium._is_remote_before((1, 6)):
2716
# Use a smart method for 1.6 and above servers
2718
self._set_last_revision_descendant(revision_id, other_branch,
2719
allow_diverged=True, allow_overwrite_descendant=True)
2721
except errors.UnknownSmartMethod:
2722
medium._remember_remote_is_before((1, 6))
2723
self._clear_cached_state_of_remote_branch_only()
2724
self.set_revision_history(self._lefthand_history(revision_id,
2725
last_rev=last_rev,other_branch=other_branch))
1149
return self._real_branch.generate_revision_history(
1150
revision_id, last_rev=last_rev, other_branch=other_branch)
1155
return self._real_branch.tags
2727
1157
def set_push_location(self, location):
2728
1158
self._ensure_real()
2729
1159
return self._real_branch.set_push_location(location)
2732
class RemoteConfig(object):
2733
"""A Config that reads and writes from smart verbs.
2735
It is a low-level object that considers config data to be name/value pairs
2736
that may be associated with a section. Assigning meaning to the these
2737
values is done at higher levels like bzrlib.config.TreeConfig.
2740
def get_option(self, name, section=None, default=None):
2741
"""Return the value associated with a named option.
2743
:param name: The name of the value
2744
:param section: The section the option is in (if any)
2745
:param default: The value to return if the value is not set
2746
:return: The value or default value
2749
configobj = self._get_configobj()
2751
section_obj = configobj
2754
section_obj = configobj[section]
2757
return section_obj.get(name, default)
2758
except errors.UnknownSmartMethod:
2759
return self._vfs_get_option(name, section, default)
2761
def _response_to_configobj(self, response):
2762
if len(response[0]) and response[0][0] != 'ok':
2763
raise errors.UnexpectedSmartServerResponse(response)
2764
lines = response[1].read_body_bytes().splitlines()
2765
return config.ConfigObj(lines, encoding='utf-8')
2768
class RemoteBranchConfig(RemoteConfig):
2769
"""A RemoteConfig for Branches."""
2771
def __init__(self, branch):
2772
self._branch = branch
2774
def _get_configobj(self):
2775
path = self._branch._remote_path()
2776
response = self._branch._client.call_expecting_body(
2777
'Branch.get_config_file', path)
2778
return self._response_to_configobj(response)
2780
def set_option(self, value, name, section=None):
2781
"""Set the value associated with a named option.
2783
:param value: The value to set
2784
:param name: The name of the value to set
2785
:param section: The section the option is in (if any)
2787
medium = self._branch._client._medium
2788
if medium._is_remote_before((1, 14)):
2789
return self._vfs_set_option(value, name, section)
2791
path = self._branch._remote_path()
2792
response = self._branch._client.call('Branch.set_config_option',
2793
path, self._branch._lock_token, self._branch._repo_lock_token,
2794
value.encode('utf8'), name, section or '')
2795
except errors.UnknownSmartMethod:
2796
medium._remember_remote_is_before((1, 14))
2797
return self._vfs_set_option(value, name, section)
2799
raise errors.UnexpectedSmartServerResponse(response)
2801
def _real_object(self):
2802
self._branch._ensure_real()
2803
return self._branch._real_branch
2805
def _vfs_set_option(self, value, name, section=None):
2806
return self._real_object()._get_config().set_option(
2807
value, name, section)
2810
class RemoteBzrDirConfig(RemoteConfig):
2811
"""A RemoteConfig for BzrDirs."""
2813
def __init__(self, bzrdir):
2814
self._bzrdir = bzrdir
2816
def _get_configobj(self):
2817
medium = self._bzrdir._client._medium
2818
verb = 'BzrDir.get_config_file'
2819
if medium._is_remote_before((1, 15)):
2820
raise errors.UnknownSmartMethod(verb)
2821
path = self._bzrdir._path_for_remote_call(self._bzrdir._client)
2822
response = self._bzrdir._call_expecting_body(
2824
return self._response_to_configobj(response)
2826
def _vfs_get_option(self, name, section, default):
2827
return self._real_object()._get_config().get_option(
2828
name, section, default)
2830
def set_option(self, value, name, section=None):
2831
"""Set the value associated with a named option.
2833
:param value: The value to set
2834
:param name: The name of the value to set
2835
:param section: The section the option is in (if any)
2837
return self._real_object()._get_config().set_option(
2838
value, name, section)
2840
def _real_object(self):
2841
self._bzrdir._ensure_real()
2842
return self._bzrdir._real_bzrdir
1161
def update_revisions(self, other, stop_revision=None):
1163
return self._real_branch.update_revisions(
1164
other, stop_revision=stop_revision)
1167
class RemoteBranchConfig(BranchConfig):
1170
self.branch._ensure_real()
1171
return self.branch._real_branch.get_config().username()
1173
def _get_branch_data_config(self):
1174
self.branch._ensure_real()
1175
if self._branch_data_config is None:
1176
self._branch_data_config = TreeConfig(self.branch._real_branch)
1177
return self._branch_data_config
2846
1180
def _extract_tar(tar, to_dir):
2851
1185
for tarinfo in tar:
2852
1186
tar.extract(tarinfo, to_dir)
2855
def _translate_error(err, **context):
2856
"""Translate an ErrorFromSmartServer into a more useful error.
2858
Possible context keys:
2866
If the error from the server doesn't match a known pattern, then
2867
UnknownErrorFromSmartServer is raised.
2871
return context[name]
2872
except KeyError, key_err:
2873
mutter('Missing key %r in context %r', key_err.args[0], context)
2876
"""Get the path from the context if present, otherwise use first error
2880
return context['path']
2881
except KeyError, key_err:
2883
return err.error_args[0]
2884
except IndexError, idx_err:
2886
'Missing key %r in context %r', key_err.args[0], context)
2889
if err.error_verb == 'IncompatibleRepositories':
2890
raise errors.IncompatibleRepositories(err.error_args[0],
2891
err.error_args[1], err.error_args[2])
2892
elif err.error_verb == 'NoSuchRevision':
2893
raise NoSuchRevision(find('branch'), err.error_args[0])
2894
elif err.error_verb == 'nosuchrevision':
2895
raise NoSuchRevision(find('repository'), err.error_args[0])
2896
elif err.error_verb == 'nobranch':
2897
if len(err.error_args) >= 1:
2898
extra = err.error_args[0]
2901
raise errors.NotBranchError(path=find('bzrdir').root_transport.base,
2903
elif err.error_verb == 'norepository':
2904
raise errors.NoRepositoryPresent(find('bzrdir'))
2905
elif err.error_verb == 'LockContention':
2906
raise errors.LockContention('(remote lock)')
2907
elif err.error_verb == 'UnlockableTransport':
2908
raise errors.UnlockableTransport(find('bzrdir').root_transport)
2909
elif err.error_verb == 'LockFailed':
2910
raise errors.LockFailed(err.error_args[0], err.error_args[1])
2911
elif err.error_verb == 'TokenMismatch':
2912
raise errors.TokenMismatch(find('token'), '(remote token)')
2913
elif err.error_verb == 'Diverged':
2914
raise errors.DivergedBranches(find('branch'), find('other_branch'))
2915
elif err.error_verb == 'TipChangeRejected':
2916
raise errors.TipChangeRejected(err.error_args[0].decode('utf8'))
2917
elif err.error_verb == 'UnstackableBranchFormat':
2918
raise errors.UnstackableBranchFormat(*err.error_args)
2919
elif err.error_verb == 'UnstackableRepositoryFormat':
2920
raise errors.UnstackableRepositoryFormat(*err.error_args)
2921
elif err.error_verb == 'NotStacked':
2922
raise errors.NotStacked(branch=find('branch'))
2923
elif err.error_verb == 'PermissionDenied':
2925
if len(err.error_args) >= 2:
2926
extra = err.error_args[1]
2929
raise errors.PermissionDenied(path, extra=extra)
2930
elif err.error_verb == 'ReadError':
2932
raise errors.ReadError(path)
2933
elif err.error_verb == 'NoSuchFile':
2935
raise errors.NoSuchFile(path)
2936
elif err.error_verb == 'FileExists':
2937
raise errors.FileExists(err.error_args[0])
2938
elif err.error_verb == 'DirectoryNotEmpty':
2939
raise errors.DirectoryNotEmpty(err.error_args[0])
2940
elif err.error_verb == 'ShortReadvError':
2941
args = err.error_args
2942
raise errors.ShortReadvError(
2943
args[0], int(args[1]), int(args[2]), int(args[3]))
2944
elif err.error_verb in ('UnicodeEncodeError', 'UnicodeDecodeError'):
2945
encoding = str(err.error_args[0]) # encoding must always be a string
2946
val = err.error_args[1]
2947
start = int(err.error_args[2])
2948
end = int(err.error_args[3])
2949
reason = str(err.error_args[4]) # reason must always be a string
2950
if val.startswith('u:'):
2951
val = val[2:].decode('utf-8')
2952
elif val.startswith('s:'):
2953
val = val[2:].decode('base64')
2954
if err.error_verb == 'UnicodeDecodeError':
2955
raise UnicodeDecodeError(encoding, val, start, end, reason)
2956
elif err.error_verb == 'UnicodeEncodeError':
2957
raise UnicodeEncodeError(encoding, val, start, end, reason)
2958
elif err.error_verb == 'ReadOnlyError':
2959
raise errors.TransportNotPossible('readonly transport')
2960
raise errors.UnknownErrorFromSmartServer(err)
added
removed
bzrlib/remote.py
