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# Copyright (C) 2005-2011 Canonical Ltd
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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from __future__ import absolute_import
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from .lazy_import import lazy_import
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lazy_import(globals(), """
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revision as _mod_revision,
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from breezy.i18n import gettext
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from .decorators import only_raises
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from .inter import InterObject
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from .lock import _RelockDebugMixin, LogicalLockResult
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log_exception_quietly, note, mutter, mutter_callsite, warning)
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# Old formats display a warning, but only once
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_deprecation_warning_done = False
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class IsInWriteGroupError(errors.InternalBzrError):
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_fmt = "May not refresh_data of repo %(repo)s while in a write group."
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def __init__(self, repo):
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errors.InternalBzrError.__init__(self, repo=repo)
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class CannotSetRevisionId(errors.BzrError):
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_fmt = "Repository format does not support setting revision ids."
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class FetchResult(object):
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"""Result of a fetch operation.
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:ivar revidmap: For lossy fetches, map from source revid to target revid.
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:ivar total_fetched: Number of revisions fetched
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def __init__(self, total_fetched=None, revidmap=None):
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self.total_fetched = total_fetched
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self.revidmap = revidmap
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class CommitBuilder(object):
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"""Provides an interface to build up a commit.
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This allows describing a tree to be committed without needing to
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know the internals of the format of the repository.
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# all clients should supply tree roots.
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record_root_entry = True
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# whether this commit builder will automatically update the branch that is
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updates_branch = False
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def __init__(self, repository, parents, config_stack, timestamp=None,
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timezone=None, committer=None, revprops=None,
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revision_id=None, lossy=False):
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"""Initiate a CommitBuilder.
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:param repository: Repository to commit to.
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:param parents: Revision ids of the parents of the new revision.
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:param timestamp: Optional timestamp recorded for commit.
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:param timezone: Optional timezone for timestamp.
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:param committer: Optional committer to set for commit.
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:param revprops: Optional dictionary of revision properties.
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:param revision_id: Optional revision id.
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:param lossy: Whether to discard data that can not be natively
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represented, when pushing to a foreign VCS
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self._config_stack = config_stack
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if committer is None:
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self._committer = self._config_stack.get('email')
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elif not isinstance(committer, text_type):
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self._committer = committer.decode() # throw if non-ascii
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self._committer = committer
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self.parents = parents
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self.repository = repository
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if revprops is not None:
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self._validate_revprops(revprops)
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self._revprops.update(revprops)
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if timestamp is None:
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timestamp = time.time()
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# Restrict resolution to 1ms
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self._timestamp = round(timestamp, 3)
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self._timezone = osutils.local_time_offset()
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self._timezone = int(timezone)
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self._generate_revision_if_needed(revision_id)
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def any_changes(self):
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"""Return True if any entries were changed.
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This includes merge-only changes. It is the core for the --unchanged
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:return: True if any changes have occured.
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raise NotImplementedError(self.any_changes)
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def _validate_unicode_text(self, text, context):
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"""Verify things like commit messages don't have bogus characters."""
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# TODO(jelmer): Make this repository-format specific
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raise ValueError('Invalid value for %s: %r' % (context, text))
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def _validate_revprops(self, revprops):
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for key, value in viewitems(revprops):
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# We know that the XML serializers do not round trip '\r'
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# correctly, so refuse to accept them
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if not isinstance(value, (text_type, str)):
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raise ValueError('revision property (%s) is not a valid'
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' (unicode) string: %r' % (key, value))
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# TODO(jelmer): Make this repository-format specific
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self._validate_unicode_text(value,
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'revision property (%s)' % (key,))
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def commit(self, message):
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"""Make the actual commit.
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:return: The revision id of the recorded revision.
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raise NotImplementedError(self.commit)
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"""Abort the commit that is being built.
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raise NotImplementedError(self.abort)
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def revision_tree(self):
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"""Return the tree that was just committed.
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After calling commit() this can be called to get a
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RevisionTree representing the newly committed tree. This is
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preferred to calling Repository.revision_tree() because that may
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require deserializing the inventory, while we already have a copy in
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raise NotImplementedError(self.revision_tree)
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def finish_inventory(self):
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"""Tell the builder that the inventory is finished.
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:return: The inventory id in the repository, which can be used with
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repository.get_inventory.
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raise NotImplementedError(self.finish_inventory)
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def _generate_revision_if_needed(self, revision_id):
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"""Create a revision id if None was supplied.
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If the repository can not support user-specified revision ids
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they should override this function and raise CannotSetRevisionId
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if _new_revision_id is not None.
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:raises: CannotSetRevisionId
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if not self.repository._format.supports_setting_revision_ids:
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if revision_id is not None:
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raise CannotSetRevisionId()
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if revision_id is None:
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self._new_revision_id = self._gen_revision_id()
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self.random_revid = True
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self._new_revision_id = revision_id
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self.random_revid = False
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def record_iter_changes(self, tree, basis_revision_id, iter_changes):
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"""Record a new tree via iter_changes.
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:param tree: The tree to obtain text contents from for changed objects.
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:param basis_revision_id: The revision id of the tree the iter_changes
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has been generated against. Currently assumed to be the same
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as self.parents[0] - if it is not, errors may occur.
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:param iter_changes: An iter_changes iterator with the changes to apply
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to basis_revision_id. The iterator must not include any items with
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a current kind of None - missing items must be either filtered out
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or errored-on beefore record_iter_changes sees the item.
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:return: A generator of (relpath, fs_hash) tuples for use with
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raise NotImplementedError(self.record_iter_changes)
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class RepositoryWriteLockResult(LogicalLockResult):
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"""The result of write locking a repository.
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:ivar repository_token: The token obtained from the underlying lock, or
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:ivar unlock: A callable which will unlock the lock.
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def __init__(self, unlock, repository_token):
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LogicalLockResult.__init__(self, unlock)
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self.repository_token = repository_token
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return "RepositoryWriteLockResult(%s, %s)" % (self.repository_token,
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class WriteGroup(object):
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"""Context manager that manages a write group.
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Raising an exception will result in the write group being aborted.
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def __init__(self, repository, suppress_errors=False):
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self.repository = repository
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self._suppress_errors = suppress_errors
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self.repository.start_write_group()
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def __exit__(self, exc_type, exc_val, exc_tb):
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self.repository.abort_write_group(self._suppress_errors)
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self.repository.commit_write_group()
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######################################################################
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class Repository(controldir.ControlComponent, _RelockDebugMixin):
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from copy import deepcopy
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from cStringIO import StringIO
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from unittest import TestSuite
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import bzrlib.bzrdir as bzrdir
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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import bzrlib.errors as errors
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from bzrlib.errors import InvalidRevisionId
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import bzrlib.gpg as gpg
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from bzrlib.graph import Graph
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from bzrlib.inter import InterObject
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from bzrlib.knit import KnitVersionedFile, KnitPlainFactory
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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from bzrlib.osutils import safe_unicode
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from bzrlib.revision import NULL_REVISION
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from bzrlib.store.versioned import VersionedFileStore, WeaveStore
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from bzrlib.store.text import TextStore
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from bzrlib.symbol_versioning import *
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from bzrlib.trace import mutter, note
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from bzrlib.tree import RevisionTree
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from bzrlib.tsort import topo_sort
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from bzrlib.testament import Testament
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from bzrlib.tree import EmptyTree
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from bzrlib.weave import WeaveFile
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class Repository(object):
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"""Repository holding history for one or more branches.
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The repository holds and retrieves historical information including
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revisions and file history. It's normally accessed only by the Branch,
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which views a particular line of development through that history.
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See VersionedFileRepository in breezy.vf_repository for the
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base class for most Bazaar repositories.
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The Repository builds on top of Stores and a Transport, which respectively
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describe the disk data format and the way of accessing the (possibly
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# Does this repository implementation support random access to
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# items in the tree, or just bulk fetching/pushing of data?
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supports_random_access = True
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def abort_write_group(self, suppress_errors=False):
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"""Commit the contents accrued within the current write group.
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:param suppress_errors: if true, abort_write_group will catch and log
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unexpected errors that happen during the abort, rather than
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allowing them to propagate. Defaults to False.
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:seealso: start_write_group.
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if self._write_group is not self.get_transaction():
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# has an unlock or relock occured ?
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'(suppressed) mismatched lock context and write group. %r, %r',
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self._write_group, self.get_transaction())
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raise errors.BzrError(
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'mismatched lock context and write group. %r, %r' %
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(self._write_group, self.get_transaction()))
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self._abort_write_group()
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except Exception as exc:
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self._write_group = None
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if not suppress_errors:
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mutter('abort_write_group failed')
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log_exception_quietly()
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note(gettext('brz: ERROR (ignored): %s'), exc)
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self._write_group = None
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def _abort_write_group(self):
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"""Template method for per-repository write group cleanup.
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This is called during abort before the write group is considered to be
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finished and should cleanup any internal state accrued during the write
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group. There is no requirement that data handed to the repository be
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*not* made available - this is not a rollback - but neither should any
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attempt be made to ensure that data added is fully commited. Abort is
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invoked when an error has occured so futher disk or network operations
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may not be possible or may error and if possible should not be
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def add_fallback_repository(self, repository):
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"""Add a repository to use for looking up data not held locally.
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:param repository: A repository.
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raise NotImplementedError(self.add_fallback_repository)
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def _check_fallback_repository(self, repository):
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"""Check that this repository can fallback to repository safely.
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Raise an error if not.
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:param repository: A repository to fallback to.
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return InterRepository._assert_same_model(self, repository)
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def add_inventory(self, revid, inv, parents):
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"""Add the inventory inv to the repository as revid.
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:param parents: The revision ids of the parents that revid
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is known to have and are in the repository already.
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returns the sha1 of the serialized inventory.
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inv_text = bzrlib.xml5.serializer_v5.write_inventory_to_string(inv)
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inv_sha1 = bzrlib.osutils.sha_string(inv_text)
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inv_vf = self.control_weaves.get_weave('inventory',
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self.get_transaction())
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inv_vf.add_lines(revid, parents, bzrlib.osutils.split_lines(inv_text))
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def add_revision(self, rev_id, rev, inv=None, config=None):
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"""Add rev to the revision store as rev_id.
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:param rev_id: the revision id to use.
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:param rev: The revision object.
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:param inv: The inventory for the revision. if None, it will be looked
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up in the inventory storer
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:param config: If None no digital signature will be created.
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If supplied its signature_needed method will be used
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to determine if a signature should be made.
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if config is not None and config.signature_needed():
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inv = self.get_inventory(rev_id)
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plaintext = Testament(rev, inv).as_short_text()
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self.store_revision_signature(
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gpg.GPGStrategy(config), plaintext, rev_id)
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if not rev_id in self.get_inventory_weave():
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raise errors.WeaveRevisionNotPresent(rev_id,
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self.get_inventory_weave())
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# yes, this is not suitable for adding with ghosts.
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self.add_inventory(rev_id, inv, rev.parent_ids)
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self._revision_store.add_revision(rev, self.get_transaction())
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def _all_possible_ids(self):
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"""Return all the possible revisions that we could find."""
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return self.get_inventory_weave().versions()
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def all_revision_ids(self):
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"""Returns a list of all the revision ids in the repository.
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This is conceptually deprecated because code should generally work on
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the graph reachable from a particular revision, and ignore any other
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revisions that might be present. There is no direct replacement
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if 'evil' in debug.debug_flags:
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mutter_callsite(2, "all_revision_ids is linear with history.")
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return self._all_revision_ids()
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def _all_revision_ids(self):
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"""Returns a list of all the revision ids in the repository.
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These are in as much topological order as the underlying store can
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raise NotImplementedError(self._all_revision_ids)
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def break_lock(self):
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"""Break a lock if one is present from another instance.
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Uses the ui factory to ask for confirmation if the lock may be from
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self.control_files.break_lock()
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"""Returns a list of all the revision ids in the repository.
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These are in as much topological order as the underlying store can
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present: for weaves ghosts may lead to a lack of correctness until
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the reweave updates the parents list.
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if self._revision_store.text_store.listable():
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return self._revision_store.all_revision_ids(self.get_transaction())
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result = self._all_possible_ids()
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return self._eliminate_revisions_not_present(result)
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def _eliminate_revisions_not_present(self, revision_ids):
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"""Check every revision id in revision_ids to see if we have it.
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Returns a set of the present revisions.
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for id in revision_ids:
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if self.has_revision(id):
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def create(controldir):
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"""Construct the current default format repository in controldir."""
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return RepositoryFormat.get_default_format().initialize(controldir)
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def create(a_bzrdir):
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"""Construct the current default format repository in a_bzrdir."""
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return RepositoryFormat.get_default_format().initialize(a_bzrdir)
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def __init__(self, _format, controldir, control_files):
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def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
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"""instantiate a Repository.
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:param _format: The format of the repository on disk.
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:param controldir: The ControlDir of the repository.
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:param control_files: Control files to use for locking, etc.
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:param a_bzrdir: The BzrDir of the repository.
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In the future we will have a single api for all stores for
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getting file texts, inventories and revisions, then
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this construct will accept instances of those things.
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# In the future we will have a single api for all stores for
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# getting file texts, inventories and revisions, then
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# this construct will accept instances of those things.
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super(Repository, self).__init__()
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self._format = _format
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# the following are part of the public API for Repository:
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self.controldir = controldir
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self.bzrdir = a_bzrdir
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self.control_files = control_files
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self._write_group = None
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# Additional places to query for data.
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self._fallback_repositories = []
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def user_transport(self):
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return self.controldir.user_transport
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def control_transport(self):
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return self._transport
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if self._fallback_repositories:
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return '%s(%r, fallback_repositories=%r)' % (
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self.__class__.__name__,
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self._fallback_repositories)
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return '%s(%r)' % (self.__class__.__name__,
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def _has_same_fallbacks(self, other_repo):
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"""Returns true if the repositories have the same fallbacks."""
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my_fb = self._fallback_repositories
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other_fb = other_repo._fallback_repositories
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if len(my_fb) != len(other_fb):
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for f, g in zip(my_fb, other_fb):
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if not f.has_same_location(g):
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def has_same_location(self, other):
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"""Returns a boolean indicating if this repository is at the same
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location as another repository.
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This might return False even when two repository objects are accessing
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the same physical repository via different URLs.
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if self.__class__ is not other.__class__:
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return (self.control_url == other.control_url)
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def is_in_write_group(self):
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"""Return True if there is an open write group.
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:seealso: start_write_group.
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return self._write_group is not None
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self._revision_store = _revision_store
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self.text_store = text_store
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# backwards compatability
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self.weave_store = text_store
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# not right yet - should be more semantically clear ?
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self.control_store = control_store
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self.control_weaves = control_store
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# TODO: make sure to construct the right store classes, etc, depending
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# on whether escaping is required.
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def lock_write(self):
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self.control_files.lock_write()
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self.control_files.lock_read()
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def is_locked(self):
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return self.control_files.is_locked()
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def is_write_locked(self):
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"""Return True if this object is write locked."""
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return self.is_locked() and self.control_files._lock_mode == 'w'
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def lock_write(self, token=None):
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"""Lock this repository for writing.
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This causes caching within the repository obejct to start accumlating
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data during reads, and allows a 'write_group' to be obtained. Write
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groups must be used for actual data insertion.
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A token should be passed in if you know that you have locked the object
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some other way, and need to synchronise this object's state with that
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XXX: this docstring is duplicated in many places, e.g. lockable_files.py
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:param token: if this is already locked, then lock_write will fail
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unless the token matches the existing lock.
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:returns: a token if this instance supports tokens, otherwise None.
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:raises TokenLockingNotSupported: when a token is given but this
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instance doesn't support using token locks.
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:raises MismatchedToken: if the specified token doesn't match the token
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of the existing lock.
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:seealso: start_write_group.
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:return: A RepositoryWriteLockResult.
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locked = self.is_locked()
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token = self.control_files.lock_write(token=token)
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self._warn_if_deprecated()
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for repo in self._fallback_repositories:
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# Writes don't affect fallback repos
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return RepositoryWriteLockResult(self.unlock, token)
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"""Lock the repository for read operations.
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:return: An object with an unlock method which will release the lock
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locked = self.is_locked()
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self.control_files.lock_read()
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self._warn_if_deprecated()
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for repo in self._fallback_repositories:
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return LogicalLockResult(self.unlock)
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def get_physical_lock_status(self):
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return self.control_files.get_physical_lock_status()
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def leave_lock_in_place(self):
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"""Tell this repository not to release the physical lock when this
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If lock_write doesn't return a token, then this method is not supported.
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self.control_files.leave_in_place()
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def dont_leave_lock_in_place(self):
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"""Tell this repository to release the physical lock when this
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object is unlocked, even if it didn't originally acquire it.
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If lock_write doesn't return a token, then this method is not supported.
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self.control_files.dont_leave_in_place()
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def gather_stats(self, revid=None, committers=None):
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"""Gather statistics from a revision id.
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:param revid: The revision id to gather statistics from, if None, then
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no revision specific statistics are gathered.
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:param committers: Optional parameter controlling whether to grab
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a count of committers from the revision specific statistics.
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:return: A dictionary of statistics. Currently this contains:
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committers: The number of committers if requested.
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firstrev: A tuple with timestamp, timezone for the penultimate left
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most ancestor of revid, if revid is not the NULL_REVISION.
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latestrev: A tuple with timestamp, timezone for revid, if revid is
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not the NULL_REVISION.
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revisions: The total revision count in the repository.
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size: An estimate disk size of the repository in bytes.
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with self.lock_read():
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if revid and committers:
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result['committers'] = 0
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if revid and revid != _mod_revision.NULL_REVISION:
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graph = self.get_graph()
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all_committers = set()
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revisions = [r for (r, p) in graph.iter_ancestry([revid])
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if r != _mod_revision.NULL_REVISION]
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# ignore the revisions in the middle - just grab first and last
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revisions = revisions[0], revisions[-1]
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for revision in self.get_revisions(revisions):
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if not last_revision:
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last_revision = revision
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all_committers.add(revision.committer)
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first_revision = revision
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result['committers'] = len(all_committers)
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result['firstrev'] = (first_revision.timestamp,
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first_revision.timezone)
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result['latestrev'] = (last_revision.timestamp,
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last_revision.timezone)
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def find_branches(self, using=False):
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"""Find branches underneath this repository.
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This will include branches inside other branches.
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:param using: If True, list only branches using this repository.
577
if using and not self.is_shared():
578
for branch in self.controldir.list_branches():
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class Evaluator(object):
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self.first_call = True
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def __call__(self, controldir):
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# On the first call, the parameter is always the controldir
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# containing the current repo.
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if not self.first_call:
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repository = controldir.open_repository()
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except errors.NoRepositoryPresent:
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return False, ([], repository)
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self.first_call = False
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value = (controldir.list_branches(), None)
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for branches, repository in controldir.ControlDir.find_controldirs(
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self.user_transport, evaluate=Evaluator()):
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if branches is not None:
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for branch in branches:
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if not using and repository is not None:
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for branch in repository.find_branches():
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def search_missing_revision_ids(self, other,
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find_ghosts=True, revision_ids=None, if_present_ids=None,
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def missing_revision_ids(self, other, revision_id=None):
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"""Return the revision ids that other has that this does not.
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These are returned in topological order.
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revision_ids: only return revision ids included by revision_id.
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revision_id: only return revision ids included by revision_id.
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with self.lock_read():
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return InterRepository.get(other, self).search_missing_revision_ids(
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find_ghosts=find_ghosts, revision_ids=revision_ids,
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if_present_ids=if_present_ids, limit=limit)
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return InterRepository.get(other, self).missing_revision_ids(revision_id)
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185
For instance, if the repository is at URL/.bzr/repository,
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186
Repository.open(URL) -> a Repository instance.
631
control = controldir.ControlDir.open(base)
188
control = bzrlib.bzrdir.BzrDir.open(base)
632
189
return control.open_repository()
634
def copy_content_into(self, destination, revision_id=None):
191
def copy_content_into(self, destination, revision_id=None, basis=None):
635
192
"""Make a complete copy of the content in self into destination.
637
This is a destructive operation! Do not use it on existing
194
This is a destructive operation! Do not use it on existing
640
return InterRepository.get(self, destination).copy_content(revision_id)
642
def commit_write_group(self):
643
"""Commit the contents accrued within the current write group.
645
:seealso: start_write_group.
647
:return: it may return an opaque hint that can be passed to 'pack'.
649
if self._write_group is not self.get_transaction():
650
# has an unlock or relock occured ?
651
raise errors.BzrError('mismatched lock context %r and '
653
(self.get_transaction(), self._write_group))
654
result = self._commit_write_group()
655
self._write_group = None
658
def _commit_write_group(self):
659
"""Template method for per-repository write group cleanup.
661
This is called before the write group is considered to be
662
finished and should ensure that all data handed to the repository
663
for writing during the write group is safely committed (to the
664
extent possible considering file system caching etc).
667
def suspend_write_group(self):
668
"""Suspend a write group.
670
:raise UnsuspendableWriteGroup: If the write group can not be
672
:return: List of tokens
674
raise errors.UnsuspendableWriteGroup(self)
676
def refresh_data(self):
677
"""Re-read any data needed to synchronise with disk.
679
This method is intended to be called after another repository instance
680
(such as one used by a smart server) has inserted data into the
681
repository. On all repositories this will work outside of write groups.
682
Some repository formats (pack and newer for breezy native formats)
683
support refresh_data inside write groups. If called inside a write
684
group on a repository that does not support refreshing in a write group
685
IsInWriteGroupError will be raised.
689
def resume_write_group(self, tokens):
690
if not self.is_write_locked():
691
raise errors.NotWriteLocked(self)
692
if self._write_group:
693
raise errors.BzrError('already in a write group')
694
self._resume_write_group(tokens)
695
# so we can detect unlock/relock - the write group is now entered.
696
self._write_group = self.get_transaction()
698
def _resume_write_group(self, tokens):
699
raise errors.UnsuspendableWriteGroup(self)
701
def fetch(self, source, revision_id=None, find_ghosts=False, lossy=False):
197
return InterRepository.get(self, destination).copy_content(revision_id, basis)
199
def fetch(self, source, revision_id=None, pb=None):
702
200
"""Fetch the content required to construct revision_id from source.
704
If revision_id is None, then all content is copied.
706
fetch() may not be used when the repository is in a write group -
707
either finish the current write group before using fetch, or use
708
fetch before starting the write group.
710
:param find_ghosts: Find and copy revisions in the source that are
711
ghosts in the target (and not reachable directly by walking out to
712
the first-present revision in target from revision_id).
713
:param revision_id: If specified, all the content needed for this
714
revision ID will be copied to the target. Fetch will determine for
715
itself which content needs to be copied.
716
:return: A FetchResult object
718
if self.is_in_write_group():
719
raise errors.InternalBzrError(
720
"May not fetch while in a write group.")
721
# fast path same-url fetch operations
722
# TODO: lift out to somewhere common with RemoteRepository
723
# <https://bugs.launchpad.net/bzr/+bug/401646>
724
if (self.has_same_location(source)
725
and self._has_same_fallbacks(source)):
726
# check that last_revision is in 'from' and then return a
728
if (revision_id is not None and
729
not _mod_revision.is_null(revision_id)):
730
self.get_revision(revision_id)
732
inter = InterRepository.get(source, self)
734
revision_id=revision_id, find_ghosts=find_ghosts, lossy=lossy)
736
def get_commit_builder(self, branch, parents, config_stack, timestamp=None,
737
timezone=None, committer=None, revprops=None,
738
revision_id=None, lossy=False):
739
"""Obtain a CommitBuilder for this repository.
741
:param branch: Branch to commit to.
742
:param parents: Revision ids of the parents of the new revision.
743
:param config_stack: Configuration stack to use.
744
:param timestamp: Optional timestamp recorded for commit.
745
:param timezone: Optional timezone for timestamp.
746
:param committer: Optional committer to set for commit.
747
:param revprops: Optional dictionary of revision properties.
748
:param revision_id: Optional revision id.
749
:param lossy: Whether to discard data that can not be natively
750
represented, when pushing to a foreign VCS
752
raise NotImplementedError(self.get_commit_builder)
754
@only_raises(errors.LockNotHeld, errors.LockBroken)
202
If revision_id is None all content is copied.
204
return InterRepository.get(source, self).fetch(revision_id=revision_id,
755
207
def unlock(self):
756
if (self.control_files._lock_count == 1 and
757
self.control_files._lock_mode == 'w'):
758
if self._write_group is not None:
759
self.abort_write_group()
760
self.control_files.unlock()
761
raise errors.BzrError(
762
'Must end write groups before releasing write locks.')
763
208
self.control_files.unlock()
764
if self.control_files._lock_count == 0:
765
for repo in self._fallback_repositories:
768
def clone(self, controldir, revision_id=None):
769
"""Clone this repository into controldir using the current format.
211
def clone(self, a_bzrdir, revision_id=None, basis=None):
212
"""Clone this repository into a_bzrdir using the current format.
771
214
Currently no check is made that the format of this repository and
772
215
the bzrdir format are compatible. FIXME RBC 20060201.
774
:return: The newly created destination repository.
776
with self.lock_read():
777
# TODO: deprecate after 0.16; cloning this with all its settings is
778
# probably not very useful -- mbp 20070423
779
dest_repo = self._create_sprouting_repo(
780
controldir, shared=self.is_shared())
781
self.copy_content_into(dest_repo, revision_id)
784
def start_write_group(self):
785
"""Start a write group in the repository.
787
Write groups are used by repositories which do not have a 1:1 mapping
788
between file ids and backend store to manage the insertion of data from
789
both fetch and commit operations.
791
A write lock is required around the
792
start_write_group/commit_write_group for the support of lock-requiring
795
One can only insert data into a repository inside a write group.
799
if not self.is_write_locked():
800
raise errors.NotWriteLocked(self)
801
if self._write_group:
802
raise errors.BzrError('already in a write group')
803
self._start_write_group()
804
# so we can detect unlock/relock - the write group is now entered.
805
self._write_group = self.get_transaction()
807
def _start_write_group(self):
808
"""Template method for per-repository write group startup.
810
This is called before the write group is considered to be
814
def sprout(self, to_bzrdir, revision_id=None):
815
"""Create a descendent repository for new development.
817
Unlike clone, this does not copy the settings of the repository.
819
with self.lock_read():
820
dest_repo = self._create_sprouting_repo(to_bzrdir, shared=False)
821
dest_repo.fetch(self, revision_id=revision_id)
824
def _create_sprouting_repo(self, a_controldir, shared):
826
a_controldir._format, self.controldir._format.__class__):
217
if not isinstance(a_bzrdir._format, self.bzrdir._format.__class__):
827
218
# use target default format.
828
dest_repo = a_controldir.create_repository()
219
result = a_bzrdir.create_repository()
220
# FIXME RBC 20060209 split out the repository type to avoid this check ?
221
elif isinstance(a_bzrdir._format,
222
(bzrlib.bzrdir.BzrDirFormat4,
223
bzrlib.bzrdir.BzrDirFormat5,
224
bzrlib.bzrdir.BzrDirFormat6)):
225
result = a_bzrdir.open_repository()
830
# Most control formats need the repository to be specifically
831
# created, but on some old all-in-one formats it's not needed
833
dest_repo = self._format.initialize(
834
a_controldir, shared=shared)
835
except errors.UninitializableFormat:
836
dest_repo = a_controldir.open_repository()
227
result = self._format.initialize(a_bzrdir, shared=self.is_shared())
228
self.copy_content_into(result, revision_id, basis)
839
232
def has_revision(self, revision_id):
840
233
"""True if this repository has a copy of the revision."""
841
with self.lock_read():
842
return revision_id in self.has_revisions((revision_id,))
844
def has_revisions(self, revision_ids):
845
"""Probe to find out the presence of multiple revisions.
847
:param revision_ids: An iterable of revision_ids.
848
:return: A set of the revision_ids that were present.
850
raise NotImplementedError(self.has_revisions)
852
def get_revision(self, revision_id):
853
"""Return the Revision object for a named revision."""
854
with self.lock_read():
855
return self.get_revisions([revision_id])[0]
234
return self._revision_store.has_revision_id(revision_id,
235
self.get_transaction())
857
238
def get_revision_reconcile(self, revision_id):
858
239
"""'reconcile' helper routine that allows access to a revision always.
860
241
This variant of get_revision does not cross check the weave graph
861
242
against the revision one as get_revision does: but it should only
862
243
be used by reconcile, or reconcile-alike commands that are correcting
863
244
or testing the revision graph.
865
raise NotImplementedError(self.get_revision_reconcile)
867
def get_revisions(self, revision_ids):
868
"""Get many revisions at once.
870
Repositories that need to check data on every revision read should
871
subclass this method.
874
for revid, rev in self.iter_revisions(revision_ids):
876
raise errors.NoSuchRevision(self, revid)
878
return [revs[revid] for revid in revision_ids]
880
def iter_revisions(self, revision_ids):
881
"""Iterate over revision objects.
883
:param revision_ids: An iterable of revisions to examine. None may be
884
passed to request all revisions known to the repository. Note that
885
not all repositories can find unreferenced revisions; for those
886
repositories only referenced ones will be returned.
887
:return: An iterator of (revid, revision) tuples. Absent revisions (
888
those asked for but not available) are returned as (revid, None).
889
N.B.: Revisions are not necessarily yielded in order.
891
raise NotImplementedError(self.iter_revisions)
893
def get_deltas_for_revisions(self, revisions, specific_fileids=None):
894
"""Produce a generator of revision deltas.
896
Note that the input is a sequence of REVISIONS, not revision_ids.
897
Trees will be held in memory until the generator exits.
898
Each delta is relative to the revision's lefthand predecessor.
900
:param specific_fileids: if not None, the result is filtered
901
so that only those file-ids, their parents and their
902
children are included.
904
raise NotImplementedError(self.get_deltas_for_revisions)
906
def get_revision_delta(self, revision_id):
907
"""Return the delta for one revision.
909
The delta is relative to the left-hand predecessor of the
912
with self.lock_read():
913
r = self.get_revision(revision_id)
914
return list(self.get_deltas_for_revisions([r]))[0]
246
if not revision_id or not isinstance(revision_id, basestring):
247
raise InvalidRevisionId(revision_id=revision_id, branch=self)
248
return self._revision_store.get_revision(revision_id,
249
self.get_transaction())
252
def get_revision_xml(self, revision_id):
253
rev = self.get_revision(revision_id)
255
# the current serializer..
256
self._revision_store._serializer.write_revision(rev, rev_tmp)
258
return rev_tmp.getvalue()
261
def get_revision(self, revision_id):
262
"""Return the Revision object for a named revision"""
263
r = self.get_revision_reconcile(revision_id)
264
# weave corruption can lead to absent revision markers that should be
266
# the following test is reasonably cheap (it needs a single weave read)
267
# and the weave is cached in read transactions. In write transactions
268
# it is not cached but typically we only read a small number of
269
# revisions. For knits when they are introduced we will probably want
270
# to ensure that caching write transactions are in use.
271
inv = self.get_inventory_weave()
272
self._check_revision_parents(r, inv)
275
def _check_revision_parents(self, revision, inventory):
276
"""Private to Repository and Fetch.
278
This checks the parentage of revision in an inventory weave for
279
consistency and is only applicable to inventory-weave-for-ancestry
280
using repository formats & fetchers.
282
weave_parents = inventory.get_parents(revision.revision_id)
283
weave_names = inventory.versions()
284
for parent_id in revision.parent_ids:
285
if parent_id in weave_names:
286
# this parent must not be a ghost.
287
if not parent_id in weave_parents:
289
raise errors.CorruptRepository(self)
916
292
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
917
raise NotImplementedError(self.store_revision_signature)
919
def add_signature_text(self, revision_id, signature):
920
"""Store a signature text for a revision.
922
:param revision_id: Revision id of the revision
923
:param signature: Signature text.
925
raise NotImplementedError(self.add_signature_text)
927
def iter_files_bytes(self, desired_files):
928
"""Iterate through file versions.
930
Files will not necessarily be returned in the order they occur in
931
desired_files. No specific order is guaranteed.
933
Yields pairs of identifier, bytes_iterator. identifier is an opaque
934
value supplied by the caller as part of desired_files. It should
935
uniquely identify the file version in the caller's context. (Examples:
936
an index number or a TreeTransform trans_id.)
938
:param desired_files: a list of (file_id, revision_id, identifier)
941
raise NotImplementedError(self.iter_files_bytes)
943
def get_rev_id_for_revno(self, revno, known_pair):
944
"""Return the revision id of a revno, given a later (revno, revid)
945
pair in the same history.
947
:return: if found (True, revid). If the available history ran out
948
before reaching the revno, then this returns
949
(False, (closest_revno, closest_revid)).
951
known_revno, known_revid = known_pair
952
partial_history = [known_revid]
953
distance_from_known = known_revno - revno
954
if distance_from_known < 0:
955
raise errors.RevnoOutOfBounds(revno, (0, known_revno))
293
signature = gpg_strategy.sign(plaintext)
294
self._revision_store.add_revision_signature_text(revision_id,
296
self.get_transaction())
298
def fileid_involved_between_revs(self, from_revid, to_revid):
299
"""Find file_id(s) which are involved in the changes between revisions.
301
This determines the set of revisions which are involved, and then
302
finds all file ids affected by those revisions.
304
w = self.get_inventory_weave()
305
from_set = set(w.get_ancestry(from_revid))
306
to_set = set(w.get_ancestry(to_revid))
307
changed = to_set.difference(from_set)
308
return self._fileid_involved_by_set(changed)
310
def fileid_involved(self, last_revid=None):
311
"""Find all file_ids modified in the ancestry of last_revid.
313
:param last_revid: If None, last_revision() will be used.
315
w = self.get_inventory_weave()
317
changed = set(w.versions())
319
changed = set(w.get_ancestry(last_revid))
320
return self._fileid_involved_by_set(changed)
322
def fileid_involved_by_set(self, changes):
323
"""Find all file_ids modified by the set of revisions passed in.
325
:param changes: A set() of revision ids
327
# TODO: jam 20060119 This line does *nothing*, remove it.
328
# or better yet, change _fileid_involved_by_set so
329
# that it takes the inventory weave, rather than
330
# pulling it out by itself.
331
return self._fileid_involved_by_set(changes)
333
def _fileid_involved_by_set(self, changes):
334
"""Find the set of file-ids affected by the set of revisions.
336
:param changes: A set() of revision ids.
337
:return: A set() of file ids.
339
This peaks at the Weave, interpreting each line, looking to
340
see if it mentions one of the revisions. And if so, includes
341
the file id mentioned.
342
This expects both the Weave format, and the serialization
343
to have a single line per file/directory, and to have
344
fileid="" and revision="" on that line.
346
assert isinstance(self._format, (RepositoryFormat5,
349
RepositoryFormatKnit1)), \
350
"fileid_involved only supported for branches which store inventory as unnested xml"
352
w = self.get_inventory_weave()
355
# this code needs to read every line in every inventory for the
356
# inventories [changes]. Seeing a line twice is ok. Seeing a line
357
# not pesent in one of those inventories is unnecessary and not
358
# harmful because we are filtering by the revision id marker in the
359
# inventory lines to only select file ids altered in one of those
360
# revisions. We dont need to see all lines in the inventory because
361
# only those added in an inventory in rev X can contain a revision=X
363
for line in w.iter_lines_added_or_present_in_versions(changes):
364
start = line.find('file_id="')+9
365
if start < 9: continue
366
end = line.find('"', start)
368
file_id = _unescape_xml(line[start:end])
370
# check if file_id is already present
371
if file_id in file_ids: continue
373
start = line.find('revision="')+10
374
if start < 10: continue
375
end = line.find('"', start)
377
revision_id = _unescape_xml(line[start:end])
378
if revision_id in changes:
379
file_ids.add(file_id)
383
def get_inventory_weave(self):
384
return self.control_weaves.get_weave('inventory',
385
self.get_transaction())
388
def get_inventory(self, revision_id):
389
"""Get Inventory object by hash."""
390
xml = self.get_inventory_xml(revision_id)
391
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
394
def get_inventory_xml(self, revision_id):
395
"""Get inventory XML as a file object."""
958
self, partial_history, stop_index=distance_from_known)
959
except errors.RevisionNotPresent as err:
960
if err.revision_id == known_revid:
961
# The start revision (known_revid) wasn't found.
962
raise errors.NoSuchRevision(self, known_revid)
963
# This is a stacked repository with no fallbacks, or a there's a
964
# left-hand ghost. Either way, even though the revision named in
965
# the error isn't in this repo, we know it's the next step in this
967
partial_history.append(err.revision_id)
968
if len(partial_history) <= distance_from_known:
969
# Didn't find enough history to get a revid for the revno.
970
earliest_revno = known_revno - len(partial_history) + 1
971
return (False, (earliest_revno, partial_history[-1]))
972
if len(partial_history) - 1 > distance_from_known:
973
raise AssertionError('_iter_for_revno returned too much history')
974
return (True, partial_history[-1])
397
assert isinstance(revision_id, basestring), type(revision_id)
398
iw = self.get_inventory_weave()
399
return iw.get_text(revision_id)
401
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
404
def get_inventory_sha1(self, revision_id):
405
"""Return the sha1 hash of the inventory entry
407
return self.get_revision(revision_id).inventory_sha1
410
def get_revision_graph(self, revision_id=None):
411
"""Return a dictionary containing the revision graph.
413
:return: a dictionary of revision_id->revision_parents_list.
415
weave = self.get_inventory_weave()
416
all_revisions = self._eliminate_revisions_not_present(weave.versions())
417
entire_graph = dict([(node, weave.get_parents(node)) for
418
node in all_revisions])
419
if revision_id is None:
421
elif revision_id not in entire_graph:
422
raise errors.NoSuchRevision(self, revision_id)
424
# add what can be reached from revision_id
426
pending = set([revision_id])
427
while len(pending) > 0:
429
result[node] = entire_graph[node]
430
for revision_id in result[node]:
431
if revision_id not in result:
432
pending.add(revision_id)
436
def get_revision_graph_with_ghosts(self, revision_ids=None):
437
"""Return a graph of the revisions with ghosts marked as applicable.
439
:param revision_ids: an iterable of revisions to graph or None for all.
440
:return: a Graph object with the graph reachable from revision_ids.
444
pending = set(self.all_revision_ids())
447
pending = set(revision_ids)
448
required = set(revision_ids)
451
revision_id = pending.pop()
453
rev = self.get_revision(revision_id)
454
except errors.NoSuchRevision:
455
if revision_id in required:
458
result.add_ghost(revision_id)
460
for parent_id in rev.parent_ids:
461
# is this queued or done ?
462
if (parent_id not in pending and
463
parent_id not in done):
465
pending.add(parent_id)
466
result.add_node(revision_id, rev.parent_ids)
467
done.add(revision_id)
471
def get_revision_inventory(self, revision_id):
472
"""Return inventory of a past revision."""
473
# TODO: Unify this with get_inventory()
474
# bzr 0.0.6 and later imposes the constraint that the inventory_id
475
# must be the same as its revision, so this is trivial.
476
if revision_id is None:
477
# This does not make sense: if there is no revision,
478
# then it is the current tree inventory surely ?!
479
# and thus get_root_id() is something that looks at the last
480
# commit on the branch, and the get_root_id is an inventory check.
481
raise NotImplementedError
482
# return Inventory(self.get_root_id())
484
return self.get_inventory(revision_id)
976
487
def is_shared(self):
977
488
"""Return True if this repository is flagged as a shared repository."""
978
489
raise NotImplementedError(self.is_shared)
980
def reconcile(self, other=None, thorough=False):
981
493
"""Reconcile this repository."""
982
raise NotImplementedError(self.reconcile)
984
def _refresh_data(self):
985
"""Helper called from lock_* to ensure coherency with disk.
987
The default implementation does nothing; it is however possible
988
for repositories to maintain loaded indices across multiple locks
989
by checking inside their implementation of this method to see
990
whether their indices are still valid. This depends of course on
991
the disk format being validatable in this manner. This method is
992
also called by the refresh_data() public interface to cause a refresh
993
to occur while in a write lock so that data inserted by a smart server
994
push operation is visible on the client's instance of the physical
494
from bzrlib.reconcile import RepoReconciler
495
reconciler = RepoReconciler(self)
496
reconciler.reconcile()
998
500
def revision_tree(self, revision_id):
999
501
"""Return Tree for a revision on this branch.
1001
`revision_id` may be NULL_REVISION for the empty tree revision.
1003
raise NotImplementedError(self.revision_tree)
1005
def revision_trees(self, revision_ids):
1006
"""Return Trees for revisions in this repository.
1008
:param revision_ids: a sequence of revision-ids;
1009
a revision-id may not be None or b'null:'
1011
raise NotImplementedError(self.revision_trees)
1013
def pack(self, hint=None, clean_obsolete_packs=False):
1014
"""Compress the data within the repository.
1016
This operation only makes sense for some repository types. For other
1017
types it should be a no-op that just returns.
1019
This stub method does not require a lock, but subclasses should use
1020
self.write_lock as this is a long running call it's reasonable to
1021
implicitly lock for the user.
1023
:param hint: If not supplied, the whole repository is packed.
1024
If supplied, the repository may use the hint parameter as a
1025
hint for the parts of the repository to pack. A hint can be
1026
obtained from the result of commit_write_group(). Out of
1027
date hints are simply ignored, because concurrent operations
1028
can obsolete them rapidly.
1030
:param clean_obsolete_packs: Clean obsolete packs immediately after
503
`revision_id` may be None for the null revision, in which case
504
an `EmptyTree` is returned."""
505
# TODO: refactor this to use an existing revision object
506
# so we don't need to read it in twice.
507
if revision_id is None or revision_id == NULL_REVISION:
510
inv = self.get_revision_inventory(revision_id)
511
return RevisionTree(self, inv, revision_id)
514
def get_ancestry(self, revision_id):
515
"""Return a list of revision-ids integrated by a revision.
517
This is topologically sorted.
519
if revision_id is None:
521
if not self.has_revision(revision_id):
522
raise errors.NoSuchRevision(self, revision_id)
523
w = self.get_inventory_weave()
524
candidates = w.get_ancestry(revision_id)
525
return [None] + candidates # self._eliminate_revisions_not_present(candidates)
528
def print_file(self, file, revision_id):
529
"""Print `file` to stdout.
531
FIXME RBC 20060125 as John Meinel points out this is a bad api
532
- it writes to stdout, it assumes that that is valid etc. Fix
533
by creating a new more flexible convenience function.
535
tree = self.revision_tree(revision_id)
536
# use inventory as it was in that revision
537
file_id = tree.inventory.path2id(file)
539
raise BzrError("%r is not present in revision %s" % (file, revno))
541
revno = self.revision_id_to_revno(revision_id)
542
except errors.NoSuchRevision:
543
# TODO: This should not be BzrError,
544
# but NoSuchFile doesn't fit either
545
raise BzrError('%r is not present in revision %s'
546
% (file, revision_id))
548
raise BzrError('%r is not present in revision %s'
550
tree.print_file(file_id)
1034
552
def get_transaction(self):
1035
553
return self.control_files.get_transaction()
1037
def get_parent_map(self, revision_ids):
1038
"""See graph.StackedParentsProvider.get_parent_map"""
1039
raise NotImplementedError(self.get_parent_map)
1041
def _get_parent_map_no_fallbacks(self, revision_ids):
1042
"""Same as Repository.get_parent_map except doesn't query fallbacks."""
1043
# revisions index works in keys; this just works in revisions
1044
# therefore wrap and unwrap
1047
for revision_id in revision_ids:
1048
if revision_id == _mod_revision.NULL_REVISION:
1049
result[revision_id] = ()
1050
elif revision_id is None:
1051
raise ValueError('get_parent_map(None) is not valid')
1053
query_keys.append((revision_id,))
1054
vf = self.revisions.without_fallbacks()
1055
for (revision_id,), parent_keys in viewitems(
1056
vf.get_parent_map(query_keys)):
1058
result[revision_id] = tuple([parent_revid
1059
for (parent_revid,) in parent_keys])
1061
result[revision_id] = (_mod_revision.NULL_REVISION,)
1064
def _make_parents_provider(self):
1065
if not self._format.supports_external_lookups:
1067
return graph.StackedParentsProvider(_LazyListJoin(
1068
[self._make_parents_provider_unstacked()],
1069
self._fallback_repositories))
1071
def _make_parents_provider_unstacked(self):
1072
return graph.CallableToParentsProviderAdapter(
1073
self._get_parent_map_no_fallbacks)
1075
def get_known_graph_ancestry(self, revision_ids):
1076
"""Return the known graph for a set of revision ids and their ancestors.
1078
raise NotImplementedError(self.get_known_graph_ancestry)
1080
def get_file_graph(self):
1081
"""Return the graph walker for files."""
1082
raise NotImplementedError(self.get_file_graph)
1084
def get_graph(self, other_repository=None):
1085
"""Return the graph walker for this repository format"""
1086
parents_provider = self._make_parents_provider()
1087
if (other_repository is not None and
1088
not self.has_same_location(other_repository)):
1089
parents_provider = graph.StackedParentsProvider(
1090
[parents_provider, other_repository._make_parents_provider()])
1091
return graph.Graph(parents_provider)
555
def revision_parents(self, revid):
556
return self.get_inventory_weave().parent_names(revid)
1093
559
def set_make_working_trees(self, new_value):
1094
560
"""Set the policy flag for making working trees when creating branches.
1102
568
raise NotImplementedError(self.set_make_working_trees)
1104
570
def make_working_trees(self):
1105
571
"""Returns the policy for making working trees on new branches."""
1106
572
raise NotImplementedError(self.make_working_trees)
1108
575
def sign_revision(self, revision_id, gpg_strategy):
1109
raise NotImplementedError(self.sign_revision)
1111
def verify_revision_signature(self, revision_id, gpg_strategy):
1112
"""Verify the signature on a revision.
1114
:param revision_id: the revision to verify
1115
:gpg_strategy: the GPGStrategy object to used
1117
:return: gpg.SIGNATURE_VALID or a failed SIGNATURE_ value
1119
raise NotImplementedError(self.verify_revision_signature)
1121
def verify_revision_signatures(self, revision_ids, gpg_strategy):
1122
"""Verify revision signatures for a number of revisions.
1124
:param revision_id: the revision to verify
1125
:gpg_strategy: the GPGStrategy object to used
1126
:return: Iterator over tuples with revision id, result and keys
1128
with self.lock_read():
1129
for revid in revision_ids:
1130
(result, key) = self.verify_revision_signature(revid, gpg_strategy)
1131
yield revid, result, key
576
plaintext = Testament.from_revision(self, revision_id).as_short_text()
577
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1133
580
def has_signature_for_revision_id(self, revision_id):
1134
581
"""Query for a revision signature for revision_id in the repository."""
1135
raise NotImplementedError(self.has_signature_for_revision_id)
582
return self._revision_store.has_signature(revision_id,
583
self.get_transaction())
1137
586
def get_signature_text(self, revision_id):
1138
587
"""Return the text for a signature."""
1139
raise NotImplementedError(self.get_signature_text)
1141
def check(self, revision_ids=None, callback_refs=None, check_repo=True):
1142
"""Check consistency of all history of given revision_ids.
1144
Different repository implementations should override _check().
1146
:param revision_ids: A non-empty list of revision_ids whose ancestry
1147
will be checked. Typically the last revision_id of a branch.
1148
:param callback_refs: A dict of check-refs to resolve and callback
1149
the check/_check method on the items listed as wanting the ref.
1151
:param check_repo: If False do not check the repository contents, just
1152
calculate the data callback_refs requires and call them back.
1154
return self._check(revision_ids=revision_ids, callback_refs=callback_refs,
1155
check_repo=check_repo)
1157
def _check(self, revision_ids=None, callback_refs=None, check_repo=True):
1158
raise NotImplementedError(self.check)
1160
def _warn_if_deprecated(self, branch=None):
1161
if not self._format.is_deprecated():
1163
global _deprecation_warning_done
1164
if _deprecation_warning_done:
588
return self._revision_store.get_signature_text(revision_id,
589
self.get_transaction())
592
class AllInOneRepository(Repository):
593
"""Legacy support - the repository behaviour for all-in-one branches."""
595
def __init__(self, _format, a_bzrdir, _revision_store, control_store, text_store):
596
# we reuse one control files instance.
597
dir_mode = a_bzrdir._control_files._dir_mode
598
file_mode = a_bzrdir._control_files._file_mode
600
def get_store(name, compressed=True, prefixed=False):
601
# FIXME: This approach of assuming stores are all entirely compressed
602
# or entirely uncompressed is tidy, but breaks upgrade from
603
# some existing branches where there's a mixture; we probably
604
# still want the option to look for both.
605
relpath = a_bzrdir._control_files._escape(name)
606
store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
607
prefixed=prefixed, compressed=compressed,
610
#if self._transport.should_cache():
611
# cache_path = os.path.join(self.cache_root, name)
612
# os.mkdir(cache_path)
613
# store = bzrlib.store.CachedStore(store, cache_path)
616
# not broken out yet because the controlweaves|inventory_store
617
# and text_store | weave_store bits are still different.
618
if isinstance(_format, RepositoryFormat4):
619
# cannot remove these - there is still no consistent api
620
# which allows access to this old info.
621
self.inventory_store = get_store('inventory-store')
622
text_store = get_store('text-store')
623
super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, _revision_store, control_store, text_store)
627
"""AllInOne repositories cannot be shared."""
631
def set_make_working_trees(self, new_value):
632
"""Set the policy flag for making working trees when creating branches.
634
This only applies to branches that use this repository.
636
The default is 'True'.
637
:param new_value: True to restore the default, False to disable making
640
raise NotImplementedError(self.set_make_working_trees)
642
def make_working_trees(self):
643
"""Returns the policy for making working trees on new branches."""
647
class MetaDirRepository(Repository):
648
"""Repositories in the new meta-dir layout."""
650
def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
651
super(MetaDirRepository, self).__init__(_format,
658
dir_mode = self.control_files._dir_mode
659
file_mode = self.control_files._file_mode
663
"""Return True if this repository is flagged as a shared repository."""
664
return self.control_files._transport.has('shared-storage')
667
def set_make_working_trees(self, new_value):
668
"""Set the policy flag for making working trees when creating branches.
670
This only applies to branches that use this repository.
672
The default is 'True'.
673
:param new_value: True to restore the default, False to disable making
678
self.control_files._transport.delete('no-working-trees')
679
except errors.NoSuchFile:
682
self.control_files.put_utf8('no-working-trees', '')
684
def make_working_trees(self):
685
"""Returns the policy for making working trees on new branches."""
686
return not self.control_files._transport.has('no-working-trees')
689
class KnitRepository(MetaDirRepository):
690
"""Knit format repository."""
693
def all_revision_ids(self):
694
"""See Repository.all_revision_ids()."""
695
return self._revision_store.all_revision_ids(self.get_transaction())
697
def fileid_involved_between_revs(self, from_revid, to_revid):
698
"""Find file_id(s) which are involved in the changes between revisions.
700
This determines the set of revisions which are involved, and then
701
finds all file ids affected by those revisions.
703
vf = self._get_revision_vf()
704
from_set = set(vf.get_ancestry(from_revid))
705
to_set = set(vf.get_ancestry(to_revid))
706
changed = to_set.difference(from_set)
707
return self._fileid_involved_by_set(changed)
709
def fileid_involved(self, last_revid=None):
710
"""Find all file_ids modified in the ancestry of last_revid.
712
:param last_revid: If None, last_revision() will be used.
715
changed = set(self.all_revision_ids())
717
changed = set(self.get_ancestry(last_revid))
720
return self._fileid_involved_by_set(changed)
723
def get_ancestry(self, revision_id):
724
"""Return a list of revision-ids integrated by a revision.
726
This is topologically sorted.
728
if revision_id is None:
730
vf = self._get_revision_vf()
1168
conf = config.GlobalStack()
1170
conf = branch.get_config_stack()
1171
if 'format_deprecation' in conf.get('suppress_warnings'):
1173
warning("Format %s for %s is deprecated -"
1174
" please use 'brz upgrade' to get better performance"
1175
% (self._format, self.controldir.transport.base))
1177
_deprecation_warning_done = True
1179
def supports_rich_root(self):
1180
return self._format.rich_root_data
1182
def _check_ascii_revisionid(self, revision_id, method):
1183
"""Private helper for ascii-only repositories."""
1184
# weave repositories refuse to store revisionids that are non-ascii.
1185
if revision_id is not None:
1186
# weaves require ascii revision ids.
1187
if isinstance(revision_id, text_type):
1189
revision_id.encode('ascii')
1190
except UnicodeEncodeError:
1191
raise errors.NonAsciiRevisionId(method, self)
1194
revision_id.decode('ascii')
1195
except UnicodeDecodeError:
1196
raise errors.NonAsciiRevisionId(method, self)
1199
class RepositoryFormatRegistry(controldir.ControlComponentFormatRegistry):
1200
"""Repository format registry."""
1202
def get_default(self):
1203
"""Return the current default format."""
1204
return controldir.format_registry.make_controldir('default').repository_format
1207
network_format_registry = registry.FormatRegistry()
1208
"""Registry of formats indexed by their network name.
1210
The network name for a repository format is an identifier that can be used when
1211
referring to formats with smart server operations. See
1212
RepositoryFormat.network_name() for more detail.
1216
format_registry = RepositoryFormatRegistry(network_format_registry)
1217
"""Registry of formats, indexed by their BzrDirMetaFormat format string.
1219
This can contain either format instances themselves, or classes/factories that
1220
can be called to obtain one.
1224
#####################################################################
1225
# Repository Formats
1227
class RepositoryFormat(controldir.ControlComponentFormat):
732
return [None] + vf.get_ancestry(revision_id)
733
except errors.RevisionNotPresent:
734
raise errors.NoSuchRevision(self, revision_id)
737
def get_revision(self, revision_id):
738
"""Return the Revision object for a named revision"""
739
return self.get_revision_reconcile(revision_id)
742
def get_revision_graph(self, revision_id=None):
743
"""Return a dictionary containing the revision graph.
745
:return: a dictionary of revision_id->revision_parents_list.
747
weave = self._get_revision_vf()
748
entire_graph = weave.get_graph()
749
if revision_id is None:
750
return weave.get_graph()
751
elif revision_id not in weave:
752
raise errors.NoSuchRevision(self, revision_id)
754
# add what can be reached from revision_id
756
pending = set([revision_id])
757
while len(pending) > 0:
759
result[node] = weave.get_parents(node)
760
for revision_id in result[node]:
761
if revision_id not in result:
762
pending.add(revision_id)
766
def get_revision_graph_with_ghosts(self, revision_ids=None):
767
"""Return a graph of the revisions with ghosts marked as applicable.
769
:param revision_ids: an iterable of revisions to graph or None for all.
770
:return: a Graph object with the graph reachable from revision_ids.
773
vf = self._get_revision_vf()
774
versions = set(vf.versions())
776
pending = set(self.all_revision_ids())
779
pending = set(revision_ids)
780
required = set(revision_ids)
783
revision_id = pending.pop()
784
if not revision_id in versions:
785
if revision_id in required:
786
raise errors.NoSuchRevision(self, revision_id)
788
result.add_ghost(revision_id)
789
# mark it as done so we dont try for it again.
790
done.add(revision_id)
792
parent_ids = vf.get_parents_with_ghosts(revision_id)
793
for parent_id in parent_ids:
794
# is this queued or done ?
795
if (parent_id not in pending and
796
parent_id not in done):
798
pending.add(parent_id)
799
result.add_node(revision_id, parent_ids)
800
done.add(revision_id)
803
def _get_revision_vf(self):
804
""":return: a versioned file containing the revisions."""
805
vf = self._revision_store.get_revision_file(self.get_transaction())
810
"""Reconcile this repository."""
811
from bzrlib.reconcile import KnitReconciler
812
reconciler = KnitReconciler(self)
813
reconciler.reconcile()
816
def revision_parents(self, revid):
817
return self._get_revision_vf().get_parents(rev_id)
819
class RepositoryFormat(object):
1228
820
"""A repository format.
1230
Formats provide four things:
822
Formats provide three things:
1231
823
* An initialization routine to construct repository data on disk.
1232
* a optional format string which is used when the BzrDir supports
824
* a format string which is used when the BzrDir supports versioned
1234
826
* an open routine which returns a Repository instance.
1235
* A network name for referring to the format in smart server RPC
1238
There is one and only one Format subclass for each on-disk format. But
1239
there can be one Repository subclass that is used for several different
1240
formats. The _format attribute on a Repository instance can be used to
1241
determine the disk format.
1243
Formats are placed in a registry by their format string for reference
1244
during opening. These should be subclasses of RepositoryFormat for
828
Formats are placed in an dict by their format string for reference
829
during opening. These should be subclasses of RepositoryFormat
1247
832
Once a format is deprecated, just deprecate the initialize and open
1248
methods on the format class. Do not deprecate the object, as the
1249
object may be created even when a repository instance hasn't been
833
methods on the format class. Do not deprecate the object, as the
834
object will be created every system load.
1252
836
Common instance attributes:
1253
_matchingcontroldir - the controldir format that the repository format was
837
_matchingbzrdir - the bzrdir format that the repository format was
1254
838
originally written to work with. This can be used if manually
1255
839
constructing a bzrdir and repository, or more commonly for test suite
1259
# Set to True or False in derived classes. True indicates that the format
1260
# supports ghosts gracefully.
1261
supports_ghosts = None
1262
# Can this repository be given external locations to lookup additional
1263
# data. Set to True or False in derived classes.
1264
supports_external_lookups = None
1265
# Does this format support CHK bytestring lookups. Set to True or False in
1267
supports_chks = None
1268
# Should fetch trigger a reconcile after the fetch? Only needed for
1269
# some repository formats that can suffer internal inconsistencies.
1270
_fetch_reconcile = False
1271
# Does this format have < O(tree_size) delta generation. Used to hint what
1272
# code path for commit, amongst other things.
1274
# Does doing a pack operation compress data? Useful for the pack UI command
1275
# (so if there is one pack, the operation can still proceed because it may
1276
# help), and for fetching when data won't have come from the same
1278
pack_compresses = False
1279
# Does the repository storage understand references to trees?
1280
supports_tree_reference = None
1281
# Is the format experimental ?
1282
experimental = False
1283
# Does this repository format escape funky characters, or does it create
1284
# files with similar names as the versioned files in its contents on disk
1286
supports_funky_characters = None
1287
# Does this repository format support leaving locks?
1288
supports_leaving_lock = None
1289
# Does this format support the full VersionedFiles interface?
1290
supports_full_versioned_files = None
1291
# Does this format support signing revision signatures?
1292
supports_revision_signatures = True
1293
# Can the revision graph have incorrect parents?
1294
revision_graph_can_have_wrong_parents = None
1295
# Does this format support setting revision ids?
1296
supports_setting_revision_ids = True
1297
# Does this format support rich root data?
1298
rich_root_data = None
1299
# Does this format support explicitly versioned directories?
1300
supports_versioned_directories = None
1301
# Can other repositories be nested into one of this format?
1302
supports_nesting_repositories = None
1303
# Is it possible for revisions to be present without being referenced
1305
supports_unreferenced_revisions = None
1306
# Does this format store the current Branch.nick in a revision when
1308
supports_storing_branch_nick = True
1309
# Does the format support overriding the transport to use
1310
supports_overriding_transport = True
1311
# Does the format support setting custom revision properties?
1312
supports_custom_revision_properties = True
1313
# Does the format record per-file revision metadata?
1314
records_per_file_revision = True
1317
return "%s()" % self.__class__.__name__
1319
def __eq__(self, other):
1320
# format objects are generally stateless
1321
return isinstance(other, self.__class__)
1323
def __ne__(self, other):
1324
return not self == other
843
_default_format = None
844
"""The default format used for new repositories."""
847
"""The known formats."""
850
def find_format(klass, a_bzrdir):
851
"""Return the format for the repository object in a_bzrdir."""
853
transport = a_bzrdir.get_repository_transport(None)
854
format_string = transport.get("format").read()
855
return klass._formats[format_string]
856
except errors.NoSuchFile:
857
raise errors.NoRepositoryPresent(a_bzrdir)
859
raise errors.UnknownFormatError(format_string)
861
def _get_control_store(self, repo_transport, control_files):
862
"""Return the control store for this repository."""
863
raise NotImplementedError(self._get_control_store)
866
def get_default_format(klass):
867
"""Return the current default format."""
868
return klass._default_format
870
def get_format_string(self):
871
"""Return the ASCII format string that identifies this format.
873
Note that in pre format ?? repositories the format string is
874
not permitted nor written to disk.
876
raise NotImplementedError(self.get_format_string)
1326
878
def get_format_description(self):
1327
"""Return the short description for this format."""
879
"""Return the short desciption for this format."""
1328
880
raise NotImplementedError(self.get_format_description)
1330
def initialize(self, controldir, shared=False):
1331
"""Initialize a repository of this format in controldir.
1333
:param controldir: The controldir to put the new repository in it.
882
def _get_revision_store(self, repo_transport, control_files):
883
"""Return the revision store object for this a_bzrdir."""
884
raise NotImplementedError(self._get_revision_store)
886
def _get_text_rev_store(self,
893
"""Common logic for getting a revision store for a repository.
895
see self._get_revision_store for the subclass-overridable method to
896
get the store for a repository.
898
from bzrlib.store.revision.text import TextRevisionStore
899
dir_mode = control_files._dir_mode
900
file_mode = control_files._file_mode
901
text_store =TextStore(transport.clone(name),
903
compressed=compressed,
906
_revision_store = TextRevisionStore(text_store, serializer)
907
return _revision_store
909
def _get_versioned_file_store(self,
914
versionedfile_class=WeaveFile,
916
weave_transport = control_files._transport.clone(name)
917
dir_mode = control_files._dir_mode
918
file_mode = control_files._file_mode
919
return VersionedFileStore(weave_transport, prefixed=prefixed,
922
versionedfile_class=versionedfile_class,
925
def initialize(self, a_bzrdir, shared=False):
926
"""Initialize a repository of this format in a_bzrdir.
928
:param a_bzrdir: The bzrdir to put the new repository in it.
1334
929
:param shared: The repository should be initialized as a sharable one.
1335
:returns: The new repository object.
1337
931
This may raise UninitializableFormat if shared repository are not
1338
compatible the controldir.
932
compatible the a_bzrdir.
1340
raise NotImplementedError(self.initialize)
1342
935
def is_supported(self):
1343
936
"""Is this format supported?
1345
938
Supported formats must be initializable and openable.
1346
Unsupported formats may not support initialization or committing or
939
Unsupported formats may not support initialization or committing or
1347
940
some other features depending on the reason for not being supported.
1351
def is_deprecated(self):
1352
"""Is this format deprecated?
1354
Deprecated formats may trigger a user-visible warning recommending
1355
the user to upgrade. They are still fully supported.
1359
def network_name(self):
1360
"""A simple byte string uniquely identifying this format for RPC calls.
1362
MetaDir repository formats use their disk format string to identify the
1363
repository over the wire. All in one formats such as bzr < 0.8, and
1364
foreign formats like svn/git and hg should use some marker which is
1365
unique and immutable.
1367
raise NotImplementedError(self.network_name)
1369
def check_conversion_target(self, target_format):
1370
if self.rich_root_data and not target_format.rich_root_data:
1371
raise errors.BadConversionTarget(
1372
'Does not support rich root data.', target_format,
1374
if (self.supports_tree_reference
1375
and not getattr(target_format, 'supports_tree_reference', False)):
1376
raise errors.BadConversionTarget(
1377
'Does not support nested trees', target_format,
1380
def open(self, controldir, _found=False):
1381
"""Return an instance of this format for a controldir.
944
def open(self, a_bzrdir, _found=False):
945
"""Return an instance of this format for the bzrdir a_bzrdir.
1383
947
_found is a private parameter, do not use it.
1385
949
raise NotImplementedError(self.open)
1387
def _run_post_repo_init_hooks(self, repository, controldir, shared):
1388
from .controldir import ControlDir, RepoInitHookParams
1389
hooks = ControlDir.hooks['post_repo_init']
1392
params = RepoInitHookParams(repository, self, controldir, shared)
1397
# formats which have no format string are not discoverable or independently
1398
# creatable on disk, so are not registered in format_registry. They're
1399
# all in breezy.bzr.knitreponow. When an instance of one of these is
1400
# needed, it's constructed directly by the ControlDir. Non-native formats where
1401
# the repository is not separately opened are similar.
1403
format_registry.register_lazy(
1404
b'Bazaar-NG Knit Repository Format 1',
1405
'breezy.bzr.knitrepo',
1406
'RepositoryFormatKnit1',
1409
format_registry.register_lazy(
1410
b'Bazaar Knit Repository Format 3 (bzr 0.15)\n',
1411
'breezy.bzr.knitrepo',
1412
'RepositoryFormatKnit3',
1415
format_registry.register_lazy(
1416
b'Bazaar Knit Repository Format 4 (bzr 1.0)\n',
1417
'breezy.bzr.knitrepo',
1418
'RepositoryFormatKnit4',
1421
# Pack-based formats. There is one format for pre-subtrees, and one for
1422
# post-subtrees to allow ease of testing.
1423
# NOTE: These are experimental in 0.92. Stable in 1.0 and above
1424
format_registry.register_lazy(
1425
b'Bazaar pack repository format 1 (needs bzr 0.92)\n',
1426
'breezy.bzr.knitpack_repo',
1427
'RepositoryFormatKnitPack1',
1429
format_registry.register_lazy(
1430
b'Bazaar pack repository format 1 with subtree support (needs bzr 0.92)\n',
1431
'breezy.bzr.knitpack_repo',
1432
'RepositoryFormatKnitPack3',
1434
format_registry.register_lazy(
1435
b'Bazaar pack repository format 1 with rich root (needs bzr 1.0)\n',
1436
'breezy.bzr.knitpack_repo',
1437
'RepositoryFormatKnitPack4',
1439
format_registry.register_lazy(
1440
b'Bazaar RepositoryFormatKnitPack5 (bzr 1.6)\n',
1441
'breezy.bzr.knitpack_repo',
1442
'RepositoryFormatKnitPack5',
1444
format_registry.register_lazy(
1445
b'Bazaar RepositoryFormatKnitPack5RichRoot (bzr 1.6.1)\n',
1446
'breezy.bzr.knitpack_repo',
1447
'RepositoryFormatKnitPack5RichRoot',
1449
format_registry.register_lazy(
1450
b'Bazaar RepositoryFormatKnitPack5RichRoot (bzr 1.6)\n',
1451
'breezy.bzr.knitpack_repo',
1452
'RepositoryFormatKnitPack5RichRootBroken',
1454
format_registry.register_lazy(
1455
b'Bazaar RepositoryFormatKnitPack6 (bzr 1.9)\n',
1456
'breezy.bzr.knitpack_repo',
1457
'RepositoryFormatKnitPack6',
1459
format_registry.register_lazy(
1460
b'Bazaar RepositoryFormatKnitPack6RichRoot (bzr 1.9)\n',
1461
'breezy.bzr.knitpack_repo',
1462
'RepositoryFormatKnitPack6RichRoot',
1464
format_registry.register_lazy(
1465
b'Bazaar repository format 2a (needs bzr 1.16 or later)\n',
1466
'breezy.bzr.groupcompress_repo',
1467
'RepositoryFormat2a',
1470
# Development formats.
1471
# Check their docstrings to see if/when they are obsolete.
1472
format_registry.register_lazy(
1473
(b"Bazaar development format 2 with subtree support "
1474
b"(needs bzr.dev from before 1.8)\n"),
1475
'breezy.bzr.knitpack_repo',
1476
'RepositoryFormatPackDevelopment2Subtree',
1478
format_registry.register_lazy(
1479
b'Bazaar development format 8\n',
1480
'breezy.bzr.groupcompress_repo',
1481
'RepositoryFormat2aSubtree',
952
def register_format(klass, format):
953
klass._formats[format.get_format_string()] = format
956
def set_default_format(klass, format):
957
klass._default_format = format
960
def unregister_format(klass, format):
961
assert klass._formats[format.get_format_string()] is format
962
del klass._formats[format.get_format_string()]
965
class PreSplitOutRepositoryFormat(RepositoryFormat):
966
"""Base class for the pre split out repository formats."""
968
def initialize(self, a_bzrdir, shared=False, _internal=False):
969
"""Create a weave repository.
971
TODO: when creating split out bzr branch formats, move this to a common
972
base for Format5, Format6. or something like that.
974
from bzrlib.weavefile import write_weave_v5
975
from bzrlib.weave import Weave
978
raise errors.IncompatibleFormat(self, a_bzrdir._format)
981
# always initialized when the bzrdir is.
982
return self.open(a_bzrdir, _found=True)
984
# Create an empty weave
986
bzrlib.weavefile.write_weave_v5(Weave(), sio)
987
empty_weave = sio.getvalue()
989
mutter('creating repository in %s.', a_bzrdir.transport.base)
990
dirs = ['revision-store', 'weaves']
991
files = [('inventory.weave', StringIO(empty_weave)),
994
# FIXME: RBC 20060125 dont peek under the covers
995
# NB: no need to escape relative paths that are url safe.
996
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
998
control_files.create_lock()
999
control_files.lock_write()
1000
control_files._transport.mkdir_multi(dirs,
1001
mode=control_files._dir_mode)
1003
for file, content in files:
1004
control_files.put(file, content)
1006
control_files.unlock()
1007
return self.open(a_bzrdir, _found=True)
1009
def _get_control_store(self, repo_transport, control_files):
1010
"""Return the control store for this repository."""
1011
return self._get_versioned_file_store('',
1016
def _get_text_store(self, transport, control_files):
1017
"""Get a store for file texts for this format."""
1018
raise NotImplementedError(self._get_text_store)
1020
def open(self, a_bzrdir, _found=False):
1021
"""See RepositoryFormat.open()."""
1023
# we are being called directly and must probe.
1024
raise NotImplementedError
1026
repo_transport = a_bzrdir.get_repository_transport(None)
1027
control_files = a_bzrdir._control_files
1028
text_store = self._get_text_store(repo_transport, control_files)
1029
control_store = self._get_control_store(repo_transport, control_files)
1030
_revision_store = self._get_revision_store(repo_transport, control_files)
1031
return AllInOneRepository(_format=self,
1033
_revision_store=_revision_store,
1034
control_store=control_store,
1035
text_store=text_store)
1038
class RepositoryFormat4(PreSplitOutRepositoryFormat):
1039
"""Bzr repository format 4.
1041
This repository format has:
1043
- TextStores for texts, inventories,revisions.
1045
This format is deprecated: it indexes texts using a text id which is
1046
removed in format 5; initializationa and write support for this format
1051
super(RepositoryFormat4, self).__init__()
1052
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
1054
def get_format_description(self):
1055
"""See RepositoryFormat.get_format_description()."""
1056
return "Repository format 4"
1058
def initialize(self, url, shared=False, _internal=False):
1059
"""Format 4 branches cannot be created."""
1060
raise errors.UninitializableFormat(self)
1062
def is_supported(self):
1063
"""Format 4 is not supported.
1065
It is not supported because the model changed from 4 to 5 and the
1066
conversion logic is expensive - so doing it on the fly was not
1071
def _get_control_store(self, repo_transport, control_files):
1072
"""Format 4 repositories have no formal control store at this point.
1074
This will cause any control-file-needing apis to fail - this is desired.
1078
def _get_revision_store(self, repo_transport, control_files):
1079
"""See RepositoryFormat._get_revision_store()."""
1080
from bzrlib.xml4 import serializer_v4
1081
return self._get_text_rev_store(repo_transport,
1084
serializer=serializer_v4)
1086
def _get_text_store(self, transport, control_files):
1087
"""See RepositoryFormat._get_text_store()."""
1090
class RepositoryFormat5(PreSplitOutRepositoryFormat):
1091
"""Bzr control format 5.
1093
This repository format has:
1094
- weaves for file texts and inventory
1096
- TextStores for revisions and signatures.
1100
super(RepositoryFormat5, self).__init__()
1101
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
1103
def get_format_description(self):
1104
"""See RepositoryFormat.get_format_description()."""
1105
return "Weave repository format 5"
1107
def _get_revision_store(self, repo_transport, control_files):
1108
"""See RepositoryFormat._get_revision_store()."""
1109
"""Return the revision store object for this a_bzrdir."""
1110
return self._get_text_rev_store(repo_transport,
1115
def _get_text_store(self, transport, control_files):
1116
"""See RepositoryFormat._get_text_store()."""
1117
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
1120
class RepositoryFormat6(PreSplitOutRepositoryFormat):
1121
"""Bzr control format 6.
1123
This repository format has:
1124
- weaves for file texts and inventory
1125
- hash subdirectory based stores.
1126
- TextStores for revisions and signatures.
1130
super(RepositoryFormat6, self).__init__()
1131
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
1133
def get_format_description(self):
1134
"""See RepositoryFormat.get_format_description()."""
1135
return "Weave repository format 6"
1137
def _get_revision_store(self, repo_transport, control_files):
1138
"""See RepositoryFormat._get_revision_store()."""
1139
return self._get_text_rev_store(repo_transport,
1145
def _get_text_store(self, transport, control_files):
1146
"""See RepositoryFormat._get_text_store()."""
1147
return self._get_versioned_file_store('weaves', transport, control_files)
1150
class MetaDirRepositoryFormat(RepositoryFormat):
1151
"""Common base class for the new repositories using the metadir layour."""
1154
super(MetaDirRepositoryFormat, self).__init__()
1155
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1157
def _create_control_files(self, a_bzrdir):
1158
"""Create the required files and the initial control_files object."""
1159
# FIXME: RBC 20060125 dont peek under the covers
1160
# NB: no need to escape relative paths that are url safe.
1161
repository_transport = a_bzrdir.get_repository_transport(self)
1162
control_files = LockableFiles(repository_transport, 'lock', LockDir)
1163
control_files.create_lock()
1164
return control_files
1166
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1167
"""Upload the initial blank content."""
1168
control_files = self._create_control_files(a_bzrdir)
1169
control_files.lock_write()
1171
control_files._transport.mkdir_multi(dirs,
1172
mode=control_files._dir_mode)
1173
for file, content in files:
1174
control_files.put(file, content)
1175
for file, content in utf8_files:
1176
control_files.put_utf8(file, content)
1178
control_files.put_utf8('shared-storage', '')
1180
control_files.unlock()
1183
class RepositoryFormat7(MetaDirRepositoryFormat):
1184
"""Bzr repository 7.
1186
This repository format has:
1187
- weaves for file texts and inventory
1188
- hash subdirectory based stores.
1189
- TextStores for revisions and signatures.
1190
- a format marker of its own
1191
- an optional 'shared-storage' flag
1192
- an optional 'no-working-trees' flag
1195
def _get_control_store(self, repo_transport, control_files):
1196
"""Return the control store for this repository."""
1197
return self._get_versioned_file_store('',
1202
def get_format_string(self):
1203
"""See RepositoryFormat.get_format_string()."""
1204
return "Bazaar-NG Repository format 7"
1206
def get_format_description(self):
1207
"""See RepositoryFormat.get_format_description()."""
1208
return "Weave repository format 7"
1210
def _get_revision_store(self, repo_transport, control_files):
1211
"""See RepositoryFormat._get_revision_store()."""
1212
return self._get_text_rev_store(repo_transport,
1219
def _get_text_store(self, transport, control_files):
1220
"""See RepositoryFormat._get_text_store()."""
1221
return self._get_versioned_file_store('weaves',
1225
def initialize(self, a_bzrdir, shared=False):
1226
"""Create a weave repository.
1228
:param shared: If true the repository will be initialized as a shared
1231
from bzrlib.weavefile import write_weave_v5
1232
from bzrlib.weave import Weave
1234
# Create an empty weave
1236
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1237
empty_weave = sio.getvalue()
1239
mutter('creating repository in %s.', a_bzrdir.transport.base)
1240
dirs = ['revision-store', 'weaves']
1241
files = [('inventory.weave', StringIO(empty_weave)),
1243
utf8_files = [('format', self.get_format_string())]
1245
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1246
return self.open(a_bzrdir=a_bzrdir, _found=True)
1248
def open(self, a_bzrdir, _found=False, _override_transport=None):
1249
"""See RepositoryFormat.open().
1251
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1252
repository at a slightly different url
1253
than normal. I.e. during 'upgrade'.
1256
format = RepositoryFormat.find_format(a_bzrdir)
1257
assert format.__class__ == self.__class__
1258
if _override_transport is not None:
1259
repo_transport = _override_transport
1261
repo_transport = a_bzrdir.get_repository_transport(None)
1262
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1263
text_store = self._get_text_store(repo_transport, control_files)
1264
control_store = self._get_control_store(repo_transport, control_files)
1265
_revision_store = self._get_revision_store(repo_transport, control_files)
1266
return MetaDirRepository(_format=self,
1268
control_files=control_files,
1269
_revision_store=_revision_store,
1270
control_store=control_store,
1271
text_store=text_store)
1274
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1275
"""Bzr repository knit format 1.
1277
This repository format has:
1278
- knits for file texts and inventory
1279
- hash subdirectory based stores.
1280
- knits for revisions and signatures
1281
- TextStores for revisions and signatures.
1282
- a format marker of its own
1283
- an optional 'shared-storage' flag
1284
- an optional 'no-working-trees' flag
1287
This format was introduced in bzr 0.8.
1290
def _get_control_store(self, repo_transport, control_files):
1291
"""Return the control store for this repository."""
1292
return VersionedFileStore(
1295
file_mode=control_files._file_mode,
1296
versionedfile_class=KnitVersionedFile,
1297
versionedfile_kwargs={'factory':KnitPlainFactory()},
1300
def get_format_string(self):
1301
"""See RepositoryFormat.get_format_string()."""
1302
return "Bazaar-NG Knit Repository Format 1"
1304
def get_format_description(self):
1305
"""See RepositoryFormat.get_format_description()."""
1306
return "Knit repository format 1"
1308
def _get_revision_store(self, repo_transport, control_files):
1309
"""See RepositoryFormat._get_revision_store()."""
1310
from bzrlib.store.revision.knit import KnitRevisionStore
1311
versioned_file_store = VersionedFileStore(
1313
file_mode=control_files._file_mode,
1316
versionedfile_class=KnitVersionedFile,
1317
versionedfile_kwargs={'delta':False, 'factory':KnitPlainFactory()},
1320
return KnitRevisionStore(versioned_file_store)
1322
def _get_text_store(self, transport, control_files):
1323
"""See RepositoryFormat._get_text_store()."""
1324
return self._get_versioned_file_store('knits',
1327
versionedfile_class=KnitVersionedFile,
1330
def initialize(self, a_bzrdir, shared=False):
1331
"""Create a knit format 1 repository.
1333
:param a_bzrdir: bzrdir to contain the new repository; must already
1335
:param shared: If true the repository will be initialized as a shared
1338
mutter('creating repository in %s.', a_bzrdir.transport.base)
1339
dirs = ['revision-store', 'knits']
1341
utf8_files = [('format', self.get_format_string())]
1343
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1344
repo_transport = a_bzrdir.get_repository_transport(None)
1345
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1346
control_store = self._get_control_store(repo_transport, control_files)
1347
transaction = bzrlib.transactions.WriteTransaction()
1348
# trigger a write of the inventory store.
1349
control_store.get_weave_or_empty('inventory', transaction)
1350
_revision_store = self._get_revision_store(repo_transport, control_files)
1351
_revision_store.has_revision_id('A', transaction)
1352
_revision_store.get_signature_file(transaction)
1353
return self.open(a_bzrdir=a_bzrdir, _found=True)
1355
def open(self, a_bzrdir, _found=False, _override_transport=None):
1356
"""See RepositoryFormat.open().
1358
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1359
repository at a slightly different url
1360
than normal. I.e. during 'upgrade'.
1363
format = RepositoryFormat.find_format(a_bzrdir)
1364
assert format.__class__ == self.__class__
1365
if _override_transport is not None:
1366
repo_transport = _override_transport
1368
repo_transport = a_bzrdir.get_repository_transport(None)
1369
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1370
text_store = self._get_text_store(repo_transport, control_files)
1371
control_store = self._get_control_store(repo_transport, control_files)
1372
_revision_store = self._get_revision_store(repo_transport, control_files)
1373
return KnitRepository(_format=self,
1375
control_files=control_files,
1376
_revision_store=_revision_store,
1377
control_store=control_store,
1378
text_store=text_store)
1381
# formats which have no format string are not discoverable
1382
# and not independently creatable, so are not registered.
1383
RepositoryFormat.register_format(RepositoryFormat7())
1384
_default_format = RepositoryFormatKnit1()
1385
RepositoryFormat.register_format(_default_format)
1386
RepositoryFormat.set_default_format(_default_format)
1387
_legacy_formats = [RepositoryFormat4(),
1388
RepositoryFormat5(),
1389
RepositoryFormat6()]
1485
1392
class InterRepository(InterObject):
1486
1393
"""This class represents operations taking place between two repositories.
1488
1395
Its instances have methods like copy_content and fetch, and contain
1489
references to the source and target repositories these operations can be
1396
references to the source and target repositories these operations can be
1490
1397
carried out on.
1492
1399
Often we will provide convenience methods on 'repository' which carry out
1494
1401
InterRepository.get(other).method_name(parameters).
1498
1405
"""The available optimised InterRepository types."""
1500
def copy_content(self, revision_id=None):
1408
def copy_content(self, revision_id=None, basis=None):
1501
1409
"""Make a complete copy of the content in self into destination.
1503
This is a destructive operation! Do not use it on existing
1411
This is a destructive operation! Do not use it on existing
1506
1414
:param revision_id: Only copy the content needed to construct
1507
1415
revision_id and its parents.
1416
:param basis: Copy the needed data preferentially from basis.
1509
with self.lock_write():
1511
self.target.set_make_working_trees(
1512
self.source.make_working_trees())
1513
except NotImplementedError:
1515
self.target.fetch(self.source, revision_id=revision_id)
1517
def fetch(self, revision_id=None, find_ghosts=False, lossy=False):
1419
self.target.set_make_working_trees(self.source.make_working_trees())
1420
except NotImplementedError:
1422
# grab the basis available data
1423
if basis is not None:
1424
self.target.fetch(basis, revision_id=revision_id)
1425
# but dont bother fetching if we have the needed data now.
1426
if (revision_id not in (None, NULL_REVISION) and
1427
self.target.has_revision(revision_id)):
1429
self.target.fetch(self.source, revision_id=revision_id)
1431
def _double_lock(self, lock_source, lock_target):
1432
"""Take out too locks, rolling back the first if the second throws."""
1437
# we want to ensure that we don't leave source locked by mistake.
1438
# and any error on target should not confuse source.
1439
self.source.unlock()
1443
def fetch(self, revision_id=None, pb=None):
1518
1444
"""Fetch the content required to construct revision_id.
1520
The content is copied from self.source to self.target.
1446
The content is copied from source to target.
1522
1448
:param revision_id: if None all content is copied, if NULL_REVISION no
1523
1449
content is copied.
1524
:return: FetchResult
1526
raise NotImplementedError(self.fetch)
1528
def search_missing_revision_ids(
1529
self, find_ghosts=True, revision_ids=None, if_present_ids=None,
1450
:param pb: optional progress bar to use for progress reports. If not
1451
provided a default one will be created.
1453
Returns the copied revision count and the failed revisions in a tuple:
1456
from bzrlib.fetch import GenericRepoFetcher
1457
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1458
self.source, self.source._format, self.target, self.target._format)
1459
f = GenericRepoFetcher(to_repository=self.target,
1460
from_repository=self.source,
1461
last_revision=revision_id,
1463
return f.count_copied, f.failed_revisions
1465
def lock_read(self):
1466
"""Take out a logical read lock.
1468
This will lock the source branch and the target branch. The source gets
1469
a read lock and the target a read lock.
1471
self._double_lock(self.source.lock_read, self.target.lock_read)
1473
def lock_write(self):
1474
"""Take out a logical write lock.
1476
This will lock the source branch and the target branch. The source gets
1477
a read lock and the target a write lock.
1479
self._double_lock(self.source.lock_read, self.target.lock_write)
1482
def missing_revision_ids(self, revision_id=None):
1531
1483
"""Return the revision ids that source has that target does not.
1533
:param revision_ids: return revision ids included by these
1534
revision_ids. NoSuchRevision will be raised if any of these
1535
revisions are not present.
1536
:param if_present_ids: like revision_ids, but will not cause
1537
NoSuchRevision if any of these are absent, instead they will simply
1538
not be in the result. This is useful for e.g. finding revisions
1539
to fetch for tags, which may reference absent revisions.
1540
:param find_ghosts: If True find missing revisions in deep history
1541
rather than just finding the surface difference.
1542
:param limit: Maximum number of revisions to return, topologically
1544
:return: A breezy.graph.SearchResult.
1546
raise NotImplementedError(self.search_missing_revision_ids)
1549
def _same_model(source, target):
1550
"""True if source and target have the same data representation.
1552
Note: this is always called on the base class; overriding it in a
1553
subclass will have no effect.
1556
InterRepository._assert_same_model(source, target)
1558
except errors.IncompatibleRepositories as e:
1562
def _assert_same_model(source, target):
1563
"""Raise an exception if two repositories do not use the same model.
1565
if source.supports_rich_root() != target.supports_rich_root():
1566
raise errors.IncompatibleRepositories(source, target,
1567
"different rich-root support")
1568
if source._serializer != target._serializer:
1569
raise errors.IncompatibleRepositories(source, target,
1570
"different serializers")
1485
These are returned in topological order.
1487
:param revision_id: only return revision ids included by this
1490
# generic, possibly worst case, slow code path.
1491
target_ids = set(self.target.all_revision_ids())
1492
if revision_id is not None:
1493
source_ids = self.source.get_ancestry(revision_id)
1494
assert source_ids.pop(0) == None
1496
source_ids = self.source.all_revision_ids()
1497
result_set = set(source_ids).difference(target_ids)
1498
# this may look like a no-op: its not. It preserves the ordering
1499
# other_ids had while only returning the members from other_ids
1500
# that we've decided we need.
1501
return [rev_id for rev_id in source_ids if rev_id in result_set]
1504
"""Release the locks on source and target."""
1506
self.target.unlock()
1508
self.source.unlock()
1511
class InterWeaveRepo(InterRepository):
1512
"""Optimised code paths between Weave based repositories."""
1514
_matching_repo_format = RepositoryFormat7()
1515
"""Repository format for testing with."""
1518
def is_compatible(source, target):
1519
"""Be compatible with known Weave formats.
1521
We dont test for the stores being of specific types becase that
1522
could lead to confusing results, and there is no need to be
1526
return (isinstance(source._format, (RepositoryFormat5,
1528
RepositoryFormat7)) and
1529
isinstance(target._format, (RepositoryFormat5,
1531
RepositoryFormat7)))
1532
except AttributeError:
1536
def copy_content(self, revision_id=None, basis=None):
1537
"""See InterRepository.copy_content()."""
1538
# weave specific optimised path:
1539
if basis is not None:
1540
# copy the basis in, then fetch remaining data.
1541
basis.copy_content_into(self.target, revision_id)
1542
# the basis copy_content_into could misset this.
1544
self.target.set_make_working_trees(self.source.make_working_trees())
1545
except NotImplementedError:
1547
self.target.fetch(self.source, revision_id=revision_id)
1550
self.target.set_make_working_trees(self.source.make_working_trees())
1551
except NotImplementedError:
1553
# FIXME do not peek!
1554
if self.source.control_files._transport.listable():
1555
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1557
self.target.weave_store.copy_all_ids(
1558
self.source.weave_store,
1560
from_transaction=self.source.get_transaction(),
1561
to_transaction=self.target.get_transaction())
1562
pb.update('copying inventory', 0, 1)
1563
self.target.control_weaves.copy_multi(
1564
self.source.control_weaves, ['inventory'],
1565
from_transaction=self.source.get_transaction(),
1566
to_transaction=self.target.get_transaction())
1567
self.target._revision_store.text_store.copy_all_ids(
1568
self.source._revision_store.text_store,
1573
self.target.fetch(self.source, revision_id=revision_id)
1576
def fetch(self, revision_id=None, pb=None):
1577
"""See InterRepository.fetch()."""
1578
from bzrlib.fetch import GenericRepoFetcher
1579
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1580
self.source, self.source._format, self.target, self.target._format)
1581
f = GenericRepoFetcher(to_repository=self.target,
1582
from_repository=self.source,
1583
last_revision=revision_id,
1585
return f.count_copied, f.failed_revisions
1588
def missing_revision_ids(self, revision_id=None):
1589
"""See InterRepository.missing_revision_ids()."""
1590
# we want all revisions to satisfy revision_id in source.
1591
# but we dont want to stat every file here and there.
1592
# we want then, all revisions other needs to satisfy revision_id
1593
# checked, but not those that we have locally.
1594
# so the first thing is to get a subset of the revisions to
1595
# satisfy revision_id in source, and then eliminate those that
1596
# we do already have.
1597
# this is slow on high latency connection to self, but as as this
1598
# disk format scales terribly for push anyway due to rewriting
1599
# inventory.weave, this is considered acceptable.
1601
if revision_id is not None:
1602
source_ids = self.source.get_ancestry(revision_id)
1603
assert source_ids.pop(0) == None
1605
source_ids = self.source._all_possible_ids()
1606
source_ids_set = set(source_ids)
1607
# source_ids is the worst possible case we may need to pull.
1608
# now we want to filter source_ids against what we actually
1609
# have in target, but dont try to check for existence where we know
1610
# we do not have a revision as that would be pointless.
1611
target_ids = set(self.target._all_possible_ids())
1612
possibly_present_revisions = target_ids.intersection(source_ids_set)
1613
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1614
required_revisions = source_ids_set.difference(actually_present_revisions)
1615
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1616
if revision_id is not None:
1617
# we used get_ancestry to determine source_ids then we are assured all
1618
# revisions referenced are present as they are installed in topological order.
1619
# and the tip revision was validated by get_ancestry.
1620
return required_topo_revisions
1622
# if we just grabbed the possibly available ids, then
1623
# we only have an estimate of whats available and need to validate
1624
# that against the revision records.
1625
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1628
class InterKnitRepo(InterRepository):
1629
"""Optimised code paths between Knit based repositories."""
1631
_matching_repo_format = RepositoryFormatKnit1()
1632
"""Repository format for testing with."""
1635
def is_compatible(source, target):
1636
"""Be compatible with known Knit formats.
1638
We dont test for the stores being of specific types becase that
1639
could lead to confusing results, and there is no need to be
1643
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1644
isinstance(target._format, (RepositoryFormatKnit1)))
1645
except AttributeError:
1649
def fetch(self, revision_id=None, pb=None):
1650
"""See InterRepository.fetch()."""
1651
from bzrlib.fetch import KnitRepoFetcher
1652
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1653
self.source, self.source._format, self.target, self.target._format)
1654
f = KnitRepoFetcher(to_repository=self.target,
1655
from_repository=self.source,
1656
last_revision=revision_id,
1658
return f.count_copied, f.failed_revisions
1661
def missing_revision_ids(self, revision_id=None):
1662
"""See InterRepository.missing_revision_ids()."""
1663
if revision_id is not None:
1664
source_ids = self.source.get_ancestry(revision_id)
1665
assert source_ids.pop(0) == None
1667
source_ids = self.source._all_possible_ids()
1668
source_ids_set = set(source_ids)
1669
# source_ids is the worst possible case we may need to pull.
1670
# now we want to filter source_ids against what we actually
1671
# have in target, but dont try to check for existence where we know
1672
# we do not have a revision as that would be pointless.
1673
target_ids = set(self.target._all_possible_ids())
1674
possibly_present_revisions = target_ids.intersection(source_ids_set)
1675
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1676
required_revisions = source_ids_set.difference(actually_present_revisions)
1677
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1678
if revision_id is not None:
1679
# we used get_ancestry to determine source_ids then we are assured all
1680
# revisions referenced are present as they are installed in topological order.
1681
# and the tip revision was validated by get_ancestry.
1682
return required_topo_revisions
1684
# if we just grabbed the possibly available ids, then
1685
# we only have an estimate of whats available and need to validate
1686
# that against the revision records.
1687
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1689
InterRepository.register_optimiser(InterWeaveRepo)
1690
InterRepository.register_optimiser(InterKnitRepo)
1693
class RepositoryTestProviderAdapter(object):
1694
"""A tool to generate a suite testing multiple repository formats at once.
1696
This is done by copying the test once for each transport and injecting
1697
the transport_server, transport_readonly_server, and bzrdir_format and
1698
repository_format classes into each copy. Each copy is also given a new id()
1699
to make it easy to identify.
1702
def __init__(self, transport_server, transport_readonly_server, formats):
1703
self._transport_server = transport_server
1704
self._transport_readonly_server = transport_readonly_server
1705
self._formats = formats
1707
def adapt(self, test):
1708
result = TestSuite()
1709
for repository_format, bzrdir_format in self._formats:
1710
new_test = deepcopy(test)
1711
new_test.transport_server = self._transport_server
1712
new_test.transport_readonly_server = self._transport_readonly_server
1713
new_test.bzrdir_format = bzrdir_format
1714
new_test.repository_format = repository_format
1715
def make_new_test_id():
1716
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1717
return lambda: new_id
1718
new_test.id = make_new_test_id()
1719
result.addTest(new_test)
1723
class InterRepositoryTestProviderAdapter(object):
1724
"""A tool to generate a suite testing multiple inter repository formats.
1726
This is done by copying the test once for each interrepo provider and injecting
1727
the transport_server, transport_readonly_server, repository_format and
1728
repository_to_format classes into each copy.
1729
Each copy is also given a new id() to make it easy to identify.
1732
def __init__(self, transport_server, transport_readonly_server, formats):
1733
self._transport_server = transport_server
1734
self._transport_readonly_server = transport_readonly_server
1735
self._formats = formats
1737
def adapt(self, test):
1738
result = TestSuite()
1739
for interrepo_class, repository_format, repository_format_to in self._formats:
1740
new_test = deepcopy(test)
1741
new_test.transport_server = self._transport_server
1742
new_test.transport_readonly_server = self._transport_readonly_server
1743
new_test.interrepo_class = interrepo_class
1744
new_test.repository_format = repository_format
1745
new_test.repository_format_to = repository_format_to
1746
def make_new_test_id():
1747
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1748
return lambda: new_id
1749
new_test.id = make_new_test_id()
1750
result.addTest(new_test)
1754
def default_test_list():
1755
"""Generate the default list of interrepo permutations to test."""
1757
# test the default InterRepository between format 6 and the current
1759
# XXX: robertc 20060220 reinstate this when there are two supported
1760
# formats which do not have an optimal code path between them.
1761
result.append((InterRepository,
1762
RepositoryFormat6(),
1763
RepositoryFormatKnit1()))
1764
for optimiser in InterRepository._optimisers:
1765
result.append((optimiser,
1766
optimiser._matching_repo_format,
1767
optimiser._matching_repo_format
1769
# if there are specific combinations we want to use, we can add them
1573
1774
class CopyConverter(object):
1574
1775
"""A repository conversion tool which just performs a copy of the content.
1576
1777
This is slow but quite reliable.
added
removed
bzrlib/repository.py
