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# Copyright (C) 2005, 2006, 2007 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cStringIO import StringIO
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from bzrlib.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 bzrlib.bundle import serializer
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from bzrlib.revisiontree import RevisionTree
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from bzrlib.store.versioned import VersionedFileStore
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from bzrlib.store.text import TextStore
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from bzrlib.testament import Testament
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from bzrlib.util import bencode
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.inter import InterObject
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from bzrlib.inventory import Inventory, InventoryDirectory, ROOT_ID
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from bzrlib.symbol_versioning import (
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from bzrlib.trace import mutter, mutter_callsite, note, 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 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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# the default CommitBuilder does not manage trees whose root is versioned.
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_versioned_root = False
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def __init__(self, repository, parents, config, timestamp=None,
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timezone=None, committer=None, revprops=None,
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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 config: Configuration to use.
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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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self._committer = self._config.username()
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assert isinstance(committer, basestring), type(committer)
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self._committer = committer
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self.new_inventory = Inventory(None)
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self._new_revision_id = revision_id
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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._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()
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self.__heads = graph.HeadsCache(repository.get_graph()).heads
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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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rev = _mod_revision.Revision(
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timestamp=self._timestamp,
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timezone=self._timezone,
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committer=self._committer,
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inventory_sha1=self.inv_sha1,
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revision_id=self._new_revision_id,
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properties=self._revprops)
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rev.parent_ids = self.parents
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self.repository.add_revision(self._new_revision_id, rev,
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self.new_inventory, self._config)
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self.repository.commit_write_group()
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return self._new_revision_id
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"""Abort the commit that is being built.
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self.repository.abort_write_group()
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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 RevisionTree
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representing the newly committed tree. This is preferred to
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calling Repository.revision_tree() because that may require
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deserializing the inventory, while we already have a copy in
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return RevisionTree(self.repository, self.new_inventory,
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self._new_revision_id)
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def finish_inventory(self):
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"""Tell the builder that the inventory is finished."""
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if self.new_inventory.root is None:
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raise AssertionError('Root entry should be supplied to'
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' record_entry_contents, as of bzr 0.10.',
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DeprecationWarning, stacklevel=2)
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self.new_inventory.add(InventoryDirectory(ROOT_ID, '', None))
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self.new_inventory.revision_id = self._new_revision_id
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self.inv_sha1 = self.repository.add_inventory(
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self._new_revision_id,
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def _gen_revision_id(self):
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"""Return new revision-id."""
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return generate_ids.gen_revision_id(self._config.username(),
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def _generate_revision_if_needed(self):
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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 self._new_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.random_revid = False
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def _heads(self, file_id, revision_ids):
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"""Calculate the graph heads for revision_ids in the graph of file_id.
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This can use either a per-file graph or a global revision graph as we
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have an identity relationship between the two graphs.
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return self.__heads(revision_ids)
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def _check_root(self, ie, parent_invs, tree):
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"""Helper for record_entry_contents.
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:param ie: An entry being added.
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:param parent_invs: The inventories of the parent revisions of the
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:param tree: The tree that is being committed.
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# In this revision format, root entries have no knit or weave When
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# serializing out to disk and back in root.revision is always
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ie.revision = self._new_revision_id
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def _get_delta(self, ie, basis_inv, path):
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"""Get a delta against the basis inventory for ie."""
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if ie.file_id not in basis_inv:
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return (None, path, ie.file_id, ie)
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elif ie != basis_inv[ie.file_id]:
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# TODO: avoid tis id2path call.
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return (basis_inv.id2path(ie.file_id), path, ie.file_id, ie)
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def record_entry_contents(self, ie, parent_invs, path, tree,
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"""Record the content of ie from tree into the commit if needed.
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Side effect: sets ie.revision when unchanged
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:param ie: An inventory entry present in the commit.
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:param parent_invs: The inventories of the parent revisions of the
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:param path: The path the entry is at in the tree.
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:param tree: The tree which contains this entry and should be used to
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:param content_summary: Summary data from the tree about the paths
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content - stat, length, exec, sha/link target. This is only
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accessed when the entry has a revision of None - that is when it is
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a candidate to commit.
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:return: A tuple (change_delta, version_recorded). change_delta is
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an inventory_delta change for this entry against the basis tree of
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the commit, or None if no change occured against the basis tree.
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version_recorded is True if a new version of the entry has been
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recorded. For instance, committing a merge where a file was only
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changed on the other side will return (delta, False).
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if self.new_inventory.root is None:
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if ie.parent_id is not None:
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raise errors.RootMissing()
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self._check_root(ie, parent_invs, tree)
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if ie.revision is None:
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kind = content_summary[0]
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# ie is carried over from a prior commit
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# XXX: repository specific check for nested tree support goes here - if
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# the repo doesn't want nested trees we skip it ?
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if (kind == 'tree-reference' and
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not self.repository._format.supports_tree_reference):
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# mismatch between commit builder logic and repository:
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# this needs the entry creation pushed down into the builder.
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raise NotImplementedError('Missing repository subtree support.')
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self.new_inventory.add(ie)
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# TODO: slow, take it out of the inner loop.
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basis_inv = parent_invs[0]
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basis_inv = Inventory(root_id=None)
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# ie.revision is always None if the InventoryEntry is considered
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# for committing. We may record the previous parents revision if the
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# content is actually unchanged against a sole head.
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if ie.revision is not None:
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if not self._versioned_root and path == '':
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# repositories that do not version the root set the root's
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# revision to the new commit even when no change occurs, and
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# this masks when a change may have occurred against the basis,
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# so calculate if one happened.
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if ie.file_id in basis_inv:
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delta = (basis_inv.id2path(ie.file_id), path,
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delta = (None, path, ie.file_id, ie)
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# we don't need to commit this, because the caller already
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# determined that an existing revision of this file is
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return None, (ie.revision == self._new_revision_id)
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# XXX: Friction: parent_candidates should return a list not a dict
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# so that we don't have to walk the inventories again.
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parent_candiate_entries = ie.parent_candidates(parent_invs)
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head_set = self._heads(ie.file_id, parent_candiate_entries.keys())
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for inv in parent_invs:
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if ie.file_id in inv:
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old_rev = inv[ie.file_id].revision
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if old_rev in head_set:
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heads.append(inv[ie.file_id].revision)
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head_set.remove(inv[ie.file_id].revision)
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# now we check to see if we need to write a new record to the
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# We write a new entry unless there is one head to the ancestors, and
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# the kind-derived content is unchanged.
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# Cheapest check first: no ancestors, or more the one head in the
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# ancestors, we write a new node.
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# There is a single head, look it up for comparison
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parent_entry = parent_candiate_entries[heads[0]]
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# if the non-content specific data has changed, we'll be writing a
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if (parent_entry.parent_id != ie.parent_id or
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parent_entry.name != ie.name):
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# now we need to do content specific checks:
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# if the kind changed the content obviously has
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if kind != parent_entry.kind:
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assert content_summary[2] is not None, \
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"Files must not have executable = None"
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if (# if the file length changed we have to store:
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parent_entry.text_size != content_summary[1] or
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# if the exec bit has changed we have to store:
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parent_entry.executable != content_summary[2]):
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elif parent_entry.text_sha1 == content_summary[3]:
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# all meta and content is unchanged (using a hash cache
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# hit to check the sha)
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ie.revision = parent_entry.revision
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ie.text_size = parent_entry.text_size
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ie.text_sha1 = parent_entry.text_sha1
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ie.executable = parent_entry.executable
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return self._get_delta(ie, basis_inv, path), False
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# Either there is only a hash change(no hash cache entry,
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# or same size content change), or there is no change on
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# Provide the parent's hash to the store layer, so that the
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# content is unchanged we will not store a new node.
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nostore_sha = parent_entry.text_sha1
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# We want to record a new node regardless of the presence or
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# absence of a content change in the file.
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ie.executable = content_summary[2]
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lines = tree.get_file(ie.file_id, path).readlines()
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ie.text_sha1, ie.text_size = self._add_text_to_weave(
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ie.file_id, lines, heads, nostore_sha)
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except errors.ExistingContent:
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# Turns out that the file content was unchanged, and we were
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# only going to store a new node if it was changed. Carry over
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ie.revision = parent_entry.revision
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ie.text_size = parent_entry.text_size
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ie.text_sha1 = parent_entry.text_sha1
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ie.executable = parent_entry.executable
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return self._get_delta(ie, basis_inv, path), False
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elif kind == 'directory':
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# all data is meta here, nothing specific to directory, so
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ie.revision = parent_entry.revision
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return self._get_delta(ie, basis_inv, path), False
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self._add_text_to_weave(ie.file_id, lines, heads, None)
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elif kind == 'symlink':
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current_link_target = content_summary[3]
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# symlink target is not generic metadata, check if it has
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if current_link_target != parent_entry.symlink_target:
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# unchanged, carry over.
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ie.revision = parent_entry.revision
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ie.symlink_target = parent_entry.symlink_target
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return self._get_delta(ie, basis_inv, path), False
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ie.symlink_target = current_link_target
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self._add_text_to_weave(ie.file_id, lines, heads, None)
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elif kind == 'tree-reference':
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if content_summary[3] != parent_entry.reference_revision:
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# unchanged, carry over.
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ie.reference_revision = parent_entry.reference_revision
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ie.revision = parent_entry.revision
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return self._get_delta(ie, basis_inv, path), False
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ie.reference_revision = content_summary[3]
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self._add_text_to_weave(ie.file_id, lines, heads, None)
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raise NotImplementedError('unknown kind')
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ie.revision = self._new_revision_id
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return self._get_delta(ie, basis_inv, path), True
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def _add_text_to_weave(self, file_id, new_lines, parents, nostore_sha):
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versionedfile = self.repository.weave_store.get_weave_or_empty(
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file_id, self.repository.get_transaction())
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# Don't change this to add_lines - add_lines_with_ghosts is cheaper
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# than add_lines, and allows committing when a parent is ghosted for
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# Note: as we read the content directly from the tree, we know its not
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# been turned into unicode or badly split - but a broken tree
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# implementation could give us bad output from readlines() so this is
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# not a guarantee of safety. What would be better is always checking
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# the content during test suite execution. RBC 20070912
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return versionedfile.add_lines_with_ghosts(
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self._new_revision_id, parents, new_lines,
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nostore_sha=nostore_sha, random_id=self.random_revid,
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check_content=False)[0:2]
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class RootCommitBuilder(CommitBuilder):
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"""This commitbuilder actually records the root id"""
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# the root entry gets versioned properly by this builder.
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_versioned_root = True
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def _check_root(self, ie, parent_invs, tree):
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"""Helper for record_entry_contents.
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:param ie: An entry being added.
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:param parent_invs: The inventories of the parent revisions of the
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:param tree: The tree that is being committed.
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######################################################################
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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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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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# What class to use for a CommitBuilder. Often its simpler to change this
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# in a Repository class subclass rather than to override
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# get_commit_builder.
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_commit_builder_class = CommitBuilder
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# The search regex used by xml based repositories to determine what things
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# where changed in a single commit.
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_file_ids_altered_regex = lazy_regex.lazy_compile(
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r'file_id="(?P<file_id>[^"]+)"'
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r'.* revision="(?P<revision_id>[^"]+)"'
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def abort_write_group(self):
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"""Commit the contents accrued within the current write group.
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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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raise errors.BzrError('mismatched lock context and write group.')
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self._abort_write_group()
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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_inventory(self, revision_id, inv, parents):
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"""Add the inventory inv to the repository as revision_id.
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:param parents: The revision ids of the parents that revision_id
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is known to have and are in the repository already.
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:returns: The validator(which is a sha1 digest, though what is sha'd is
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repository format specific) of the serialized inventory.
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assert self.is_in_write_group()
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_mod_revision.check_not_reserved_id(revision_id)
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assert inv.revision_id is None or inv.revision_id == revision_id, \
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"Mismatch between inventory revision" \
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" id and insertion revid (%r, %r)" % (inv.revision_id, revision_id)
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assert inv.root is not None
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inv_lines = self._serialise_inventory_to_lines(inv)
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inv_vf = self.get_inventory_weave()
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return self._inventory_add_lines(inv_vf, revision_id, parents,
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inv_lines, check_content=False)
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def _inventory_add_lines(self, inv_vf, revision_id, parents, lines,
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"""Store lines in inv_vf and return the sha1 of the inventory."""
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for parent in parents:
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final_parents.append(parent)
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return inv_vf.add_lines(revision_id, final_parents, lines,
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check_content=check_content)[0]
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def add_revision(self, revision_id, rev, inv=None, config=None):
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"""Add rev to the revision store as revision_id.
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:param revision_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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# TODO: jam 20070210 Shouldn't we check rev.revision_id and
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_mod_revision.check_not_reserved_id(revision_id)
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if config is not None and config.signature_needed():
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inv = self.get_inventory(revision_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, revision_id)
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inventory_vf = self.get_inventory_weave()
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if not revision_id in inventory_vf:
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raise errors.WeaveRevisionNotPresent(revision_id,
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# yes, this is not suitable for adding with ghosts.
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rev.inventory_sha1 = self.add_inventory(revision_id, inv,
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rev.inventory_sha1 = inventory_vf.get_sha1s([revision_id])[0]
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self._revision_store.add_revision(rev, self.get_transaction())
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def _add_revision_text(self, revision_id, text):
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revision = self._revision_store._serializer.read_revision_from_string(
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self._revision_store._add_revision(revision, StringIO(text),
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self.get_transaction())
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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 deprecated because code should generally work on the graph
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reachable from a particular revision, and ignore any other revisions
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that might be present. There is no direct replacement method.
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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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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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graph = self.get_graph()
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parent_map = graph.get_parent_map(revision_ids)
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# The old API returned a list, should this actually be a set?
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return parent_map.keys()
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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, 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 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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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.bzrdir = a_bzrdir
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self.control_files = control_files
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self._revision_store = _revision_store
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# backwards compatibility
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self.weave_store = text_store
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self._reconcile_does_inventory_gc = True
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self._reconcile_fixes_text_parents = False
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self._reconcile_backsup_inventory = True
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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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self._warn_if_deprecated()
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self._write_group = None
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self.base = control_files._transport.base
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return '%s(%r)' % (self.__class__.__name__,
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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_files._transport.base ==
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other.control_files._transport.base)
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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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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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: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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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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result = self.control_files.lock_write(token=token)
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self.control_files.lock_read()
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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):
712
"""Tell this repository to release the physical lock when this
713
object is unlocked, even if it didn't originally acquire it.
715
If lock_write doesn't return a token, then this method is not supported.
717
self.control_files.dont_leave_in_place()
720
def gather_stats(self, revid=None, committers=None):
721
"""Gather statistics from a revision id.
723
:param revid: The revision id to gather statistics from, if None, then
724
no revision specific statistics are gathered.
725
:param committers: Optional parameter controlling whether to grab
726
a count of committers from the revision specific statistics.
727
:return: A dictionary of statistics. Currently this contains:
728
committers: The number of committers if requested.
729
firstrev: A tuple with timestamp, timezone for the penultimate left
730
most ancestor of revid, if revid is not the NULL_REVISION.
731
latestrev: A tuple with timestamp, timezone for revid, if revid is
732
not the NULL_REVISION.
733
revisions: The total revision count in the repository.
734
size: An estimate disk size of the repository in bytes.
737
if revid and committers:
738
result['committers'] = 0
739
if revid and revid != _mod_revision.NULL_REVISION:
741
all_committers = set()
742
revisions = self.get_ancestry(revid)
743
# pop the leading None
745
first_revision = None
747
# ignore the revisions in the middle - just grab first and last
748
revisions = revisions[0], revisions[-1]
749
for revision in self.get_revisions(revisions):
750
if not first_revision:
751
first_revision = revision
753
all_committers.add(revision.committer)
754
last_revision = revision
756
result['committers'] = len(all_committers)
757
result['firstrev'] = (first_revision.timestamp,
758
first_revision.timezone)
759
result['latestrev'] = (last_revision.timestamp,
760
last_revision.timezone)
762
# now gather global repository information
763
if self.bzrdir.root_transport.listable():
764
c, t = self._revision_store.total_size(self.get_transaction())
765
result['revisions'] = c
769
def find_branches(self, using=False):
770
"""Find branches underneath this repository.
772
This will include branches inside other branches.
774
:param using: If True, list only branches using this repository.
776
if using and not self.is_shared():
778
return [self.bzrdir.open_branch()]
779
except errors.NotBranchError:
781
class Evaluator(object):
784
self.first_call = True
786
def __call__(self, bzrdir):
787
# On the first call, the parameter is always the bzrdir
788
# containing the current repo.
789
if not self.first_call:
791
repository = bzrdir.open_repository()
792
except errors.NoRepositoryPresent:
795
return False, (None, repository)
796
self.first_call = False
798
value = (bzrdir.open_branch(), None)
799
except errors.NotBranchError:
804
for branch, repository in bzrdir.BzrDir.find_bzrdirs(
805
self.bzrdir.root_transport, evaluate=Evaluator()):
806
if branch is not None:
807
branches.append(branch)
808
if not using and repository is not None:
809
branches.extend(repository.find_branches())
812
def get_data_stream(self, revision_ids):
813
raise NotImplementedError(self.get_data_stream)
815
def get_data_stream_for_search(self, search_result):
816
"""Get a data stream that can be inserted to a repository.
818
:param search_result: A bzrlib.graph.SearchResult selecting the
820
:return: A data stream that can be inserted into a repository using
823
raise NotImplementedError(self.get_data_stream_for_search)
825
def insert_data_stream(self, stream):
826
"""XXX What does this really do?
828
Is it a substitute for fetch?
829
Should it manage its own write group ?
831
for item_key, bytes in stream:
832
if item_key[0] == 'file':
833
(file_id,) = item_key[1:]
834
knit = self.weave_store.get_weave_or_empty(
835
file_id, self.get_transaction())
836
elif item_key == ('inventory',):
837
knit = self.get_inventory_weave()
838
elif item_key == ('revisions',):
839
knit = self._revision_store.get_revision_file(
840
self.get_transaction())
841
elif item_key == ('signatures',):
842
knit = self._revision_store.get_signature_file(
843
self.get_transaction())
845
raise errors.RepositoryDataStreamError(
846
"Unrecognised data stream key '%s'" % (item_key,))
847
decoded_list = bencode.bdecode(bytes)
848
format = decoded_list.pop(0)
851
for version, options, parents, some_bytes in decoded_list:
852
data_list.append((version, options, len(some_bytes), parents))
853
knit_bytes += some_bytes
854
buffer = StringIO(knit_bytes)
855
def reader_func(count):
859
return buffer.read(count)
860
knit.insert_data_stream(
861
(format, data_list, reader_func))
864
def search_missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
865
"""Return the revision ids that other has that this does not.
867
These are returned in topological order.
869
revision_id: only return revision ids included by revision_id.
871
return InterRepository.get(other, self).search_missing_revision_ids(
872
revision_id, find_ghosts)
874
@deprecated_method(symbol_versioning.one_two)
876
def missing_revision_ids(self, other, revision_id=None, find_ghosts=True):
877
"""Return the revision ids that other has that this does not.
879
These are returned in topological order.
881
revision_id: only return revision ids included by revision_id.
883
keys = self.search_missing_revision_ids(
884
other, revision_id, find_ghosts).get_keys()
887
parents = other.get_graph().get_parent_map(keys)
890
return tsort.topo_sort(parents)
894
"""Open the repository rooted at base.
896
For instance, if the repository is at URL/.bzr/repository,
897
Repository.open(URL) -> a Repository instance.
899
control = bzrdir.BzrDir.open(base)
900
return control.open_repository()
902
def copy_content_into(self, destination, revision_id=None):
903
"""Make a complete copy of the content in self into destination.
905
This is a destructive operation! Do not use it on existing
908
return InterRepository.get(self, destination).copy_content(revision_id)
910
def commit_write_group(self):
911
"""Commit the contents accrued within the current write group.
913
:seealso: start_write_group.
915
if self._write_group is not self.get_transaction():
916
# has an unlock or relock occured ?
917
raise errors.BzrError('mismatched lock context %r and '
919
(self.get_transaction(), self._write_group))
920
self._commit_write_group()
921
self._write_group = None
923
def _commit_write_group(self):
924
"""Template method for per-repository write group cleanup.
926
This is called before the write group is considered to be
927
finished and should ensure that all data handed to the repository
928
for writing during the write group is safely committed (to the
929
extent possible considering file system caching etc).
932
def fetch(self, source, revision_id=None, pb=None, find_ghosts=False):
933
"""Fetch the content required to construct revision_id from source.
935
If revision_id is None all content is copied.
936
:param find_ghosts: Find and copy revisions in the source that are
937
ghosts in the target (and not reachable directly by walking out to
938
the first-present revision in target from revision_id).
940
# fast path same-url fetch operations
941
if self.has_same_location(source):
942
# check that last_revision is in 'from' and then return a
944
if (revision_id is not None and
945
not _mod_revision.is_null(revision_id)):
946
self.get_revision(revision_id)
948
inter = InterRepository.get(source, self)
950
return inter.fetch(revision_id=revision_id, pb=pb, find_ghosts=find_ghosts)
951
except NotImplementedError:
952
raise errors.IncompatibleRepositories(source, self)
954
def create_bundle(self, target, base, fileobj, format=None):
955
return serializer.write_bundle(self, target, base, fileobj, format)
957
def get_commit_builder(self, branch, parents, config, timestamp=None,
958
timezone=None, committer=None, revprops=None,
960
"""Obtain a CommitBuilder for this repository.
962
:param branch: Branch to commit to.
963
:param parents: Revision ids of the parents of the new revision.
964
:param config: Configuration to use.
965
:param timestamp: Optional timestamp recorded for commit.
966
:param timezone: Optional timezone for timestamp.
967
:param committer: Optional committer to set for commit.
968
:param revprops: Optional dictionary of revision properties.
969
:param revision_id: Optional revision id.
971
result = self._commit_builder_class(self, parents, config,
972
timestamp, timezone, committer, revprops, revision_id)
973
self.start_write_group()
977
if (self.control_files._lock_count == 1 and
978
self.control_files._lock_mode == 'w'):
979
if self._write_group is not None:
980
self.abort_write_group()
981
self.control_files.unlock()
982
raise errors.BzrError(
983
'Must end write groups before releasing write locks.')
984
self.control_files.unlock()
987
def clone(self, a_bzrdir, revision_id=None):
988
"""Clone this repository into a_bzrdir using the current format.
990
Currently no check is made that the format of this repository and
991
the bzrdir format are compatible. FIXME RBC 20060201.
993
:return: The newly created destination repository.
995
# TODO: deprecate after 0.16; cloning this with all its settings is
996
# probably not very useful -- mbp 20070423
997
dest_repo = self._create_sprouting_repo(a_bzrdir, shared=self.is_shared())
998
self.copy_content_into(dest_repo, revision_id)
1001
def start_write_group(self):
1002
"""Start a write group in the repository.
1004
Write groups are used by repositories which do not have a 1:1 mapping
1005
between file ids and backend store to manage the insertion of data from
1006
both fetch and commit operations.
1008
A write lock is required around the start_write_group/commit_write_group
1009
for the support of lock-requiring repository formats.
1011
One can only insert data into a repository inside a write group.
1015
if not self.is_write_locked():
1016
raise errors.NotWriteLocked(self)
1017
if self._write_group:
1018
raise errors.BzrError('already in a write group')
1019
self._start_write_group()
1020
# so we can detect unlock/relock - the write group is now entered.
1021
self._write_group = self.get_transaction()
1023
def _start_write_group(self):
1024
"""Template method for per-repository write group startup.
1026
This is called before the write group is considered to be
1031
def sprout(self, to_bzrdir, revision_id=None):
1032
"""Create a descendent repository for new development.
1034
Unlike clone, this does not copy the settings of the repository.
1036
dest_repo = self._create_sprouting_repo(to_bzrdir, shared=False)
1037
dest_repo.fetch(self, revision_id=revision_id)
1040
def _create_sprouting_repo(self, a_bzrdir, shared):
1041
if not isinstance(a_bzrdir._format, self.bzrdir._format.__class__):
1042
# use target default format.
1043
dest_repo = a_bzrdir.create_repository()
1045
# Most control formats need the repository to be specifically
1046
# created, but on some old all-in-one formats it's not needed
1048
dest_repo = self._format.initialize(a_bzrdir, shared=shared)
1049
except errors.UninitializableFormat:
1050
dest_repo = a_bzrdir.open_repository()
1054
def has_revision(self, revision_id):
1055
"""True if this repository has a copy of the revision."""
1056
return revision_id in self.has_revisions((revision_id,))
1058
def has_revisions(self, revision_ids):
1059
"""Probe to find out the presence of multiple revisions.
1061
:param revision_ids: An iterable of revision_ids.
1062
:return: A set of the revision_ids that were present.
1064
raise NotImplementedError(self.has_revisions)
1066
return self._revision_store.has_revision_id(revision_id,
1067
self.get_transaction())
1070
def get_revision(self, revision_id):
1071
"""Return the Revision object for a named revision."""
1072
return self.get_revisions([revision_id])[0]
1075
def get_revision_reconcile(self, revision_id):
1076
"""'reconcile' helper routine that allows access to a revision always.
1078
This variant of get_revision does not cross check the weave graph
1079
against the revision one as get_revision does: but it should only
1080
be used by reconcile, or reconcile-alike commands that are correcting
1081
or testing the revision graph.
1083
return self._get_revisions([revision_id])[0]
1086
def get_revisions(self, revision_ids):
1087
"""Get many revisions at once."""
1088
return self._get_revisions(revision_ids)
1091
def _get_revisions(self, revision_ids):
1092
"""Core work logic to get many revisions without sanity checks."""
1093
for rev_id in revision_ids:
1094
if not rev_id or not isinstance(rev_id, basestring):
1095
raise errors.InvalidRevisionId(revision_id=rev_id, branch=self)
1096
revs = self._revision_store.get_revisions(revision_ids,
1097
self.get_transaction())
1099
assert not isinstance(rev.revision_id, unicode)
1100
for parent_id in rev.parent_ids:
1101
assert not isinstance(parent_id, unicode)
1105
def get_revision_xml(self, revision_id):
1106
# TODO: jam 20070210 This shouldn't be necessary since get_revision
1107
# would have already do it.
1108
# TODO: jam 20070210 Just use _serializer.write_revision_to_string()
1109
rev = self.get_revision(revision_id)
1110
rev_tmp = StringIO()
1111
# the current serializer..
1112
self._revision_store._serializer.write_revision(rev, rev_tmp)
1114
return rev_tmp.getvalue()
1116
def get_deltas_for_revisions(self, revisions):
1117
"""Produce a generator of revision deltas.
1119
Note that the input is a sequence of REVISIONS, not revision_ids.
1120
Trees will be held in memory until the generator exits.
1121
Each delta is relative to the revision's lefthand predecessor.
1123
required_trees = set()
1124
for revision in revisions:
1125
required_trees.add(revision.revision_id)
1126
required_trees.update(revision.parent_ids[:1])
1127
trees = dict((t.get_revision_id(), t) for
1128
t in self.revision_trees(required_trees))
1129
for revision in revisions:
1130
if not revision.parent_ids:
1131
old_tree = self.revision_tree(None)
1133
old_tree = trees[revision.parent_ids[0]]
1134
yield trees[revision.revision_id].changes_from(old_tree)
1137
def get_revision_delta(self, revision_id):
1138
"""Return the delta for one revision.
1140
The delta is relative to the left-hand predecessor of the
1143
r = self.get_revision(revision_id)
1144
return list(self.get_deltas_for_revisions([r]))[0]
1147
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1148
signature = gpg_strategy.sign(plaintext)
1149
self.add_signature_text(revision_id, signature)
1152
def add_signature_text(self, revision_id, signature):
1153
self._revision_store.add_revision_signature_text(revision_id,
1155
self.get_transaction())
1157
def find_text_key_references(self):
1158
"""Find the text key references within the repository.
1160
:return: a dictionary mapping (file_id, revision_id) tuples to altered file-ids to an iterable of
1161
revision_ids. Each altered file-ids has the exact revision_ids that
1162
altered it listed explicitly.
1163
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
1164
to whether they were referred to by the inventory of the
1165
revision_id that they contain. The inventory texts from all present
1166
revision ids are assessed to generate this report.
1168
revision_ids = self.all_revision_ids()
1169
w = self.get_inventory_weave()
1170
pb = ui.ui_factory.nested_progress_bar()
1172
return self._find_text_key_references_from_xml_inventory_lines(
1173
w.iter_lines_added_or_present_in_versions(revision_ids, pb=pb))
1177
def _find_text_key_references_from_xml_inventory_lines(self,
1179
"""Core routine for extracting references to texts from inventories.
1181
This performs the translation of xml lines to revision ids.
1183
:param line_iterator: An iterator of lines, origin_version_id
1184
:return: A dictionary mapping text keys ((fileid, revision_id) tuples)
1185
to whether they were referred to by the inventory of the
1186
revision_id that they contain. Note that if that revision_id was
1187
not part of the line_iterator's output then False will be given -
1188
even though it may actually refer to that key.
1190
if not self._serializer.support_altered_by_hack:
1191
raise AssertionError(
1192
"_find_text_key_references_from_xml_inventory_lines only "
1193
"supported for branches which store inventory as unnested xml"
1194
", not on %r" % self)
1197
# this code needs to read every new line in every inventory for the
1198
# inventories [revision_ids]. Seeing a line twice is ok. Seeing a line
1199
# not present in one of those inventories is unnecessary but not
1200
# harmful because we are filtering by the revision id marker in the
1201
# inventory lines : we only select file ids altered in one of those
1202
# revisions. We don't need to see all lines in the inventory because
1203
# only those added in an inventory in rev X can contain a revision=X
1205
unescape_revid_cache = {}
1206
unescape_fileid_cache = {}
1208
# jam 20061218 In a big fetch, this handles hundreds of thousands
1209
# of lines, so it has had a lot of inlining and optimizing done.
1210
# Sorry that it is a little bit messy.
1211
# Move several functions to be local variables, since this is a long
1213
search = self._file_ids_altered_regex.search
1214
unescape = _unescape_xml
1215
setdefault = result.setdefault
1216
for line, version_id in line_iterator:
1217
match = search(line)
1220
# One call to match.group() returning multiple items is quite a
1221
# bit faster than 2 calls to match.group() each returning 1
1222
file_id, revision_id = match.group('file_id', 'revision_id')
1224
# Inlining the cache lookups helps a lot when you make 170,000
1225
# lines and 350k ids, versus 8.4 unique ids.
1226
# Using a cache helps in 2 ways:
1227
# 1) Avoids unnecessary decoding calls
1228
# 2) Re-uses cached strings, which helps in future set and
1230
# (2) is enough that removing encoding entirely along with
1231
# the cache (so we are using plain strings) results in no
1232
# performance improvement.
1234
revision_id = unescape_revid_cache[revision_id]
1236
unescaped = unescape(revision_id)
1237
unescape_revid_cache[revision_id] = unescaped
1238
revision_id = unescaped
1240
# Note that unconditionally unescaping means that we deserialise
1241
# every fileid, which for general 'pull' is not great, but we don't
1242
# really want to have some many fulltexts that this matters anyway.
1245
file_id = unescape_fileid_cache[file_id]
1247
unescaped = unescape(file_id)
1248
unescape_fileid_cache[file_id] = unescaped
1251
key = (file_id, revision_id)
1252
setdefault(key, False)
1253
if revision_id == version_id:
1257
def _find_file_ids_from_xml_inventory_lines(self, line_iterator,
1259
"""Helper routine for fileids_altered_by_revision_ids.
1261
This performs the translation of xml lines to revision ids.
1263
:param line_iterator: An iterator of lines, origin_version_id
1264
:param revision_ids: The revision ids to filter for. This should be a
1265
set or other type which supports efficient __contains__ lookups, as
1266
the revision id from each parsed line will be looked up in the
1267
revision_ids filter.
1268
:return: a dictionary mapping altered file-ids to an iterable of
1269
revision_ids. Each altered file-ids has the exact revision_ids that
1270
altered it listed explicitly.
1273
setdefault = result.setdefault
1274
for file_id, revision_id in \
1275
self._find_text_key_references_from_xml_inventory_lines(
1276
line_iterator).iterkeys():
1277
# once data is all ensured-consistent; then this is
1278
# if revision_id == version_id
1279
if revision_id in revision_ids:
1280
setdefault(file_id, set()).add(revision_id)
1283
def fileids_altered_by_revision_ids(self, revision_ids, _inv_weave=None):
1284
"""Find the file ids and versions affected by revisions.
1286
:param revisions: an iterable containing revision ids.
1287
:param _inv_weave: The inventory weave from this repository or None.
1288
If None, the inventory weave will be opened automatically.
1289
:return: a dictionary mapping altered file-ids to an iterable of
1290
revision_ids. Each altered file-ids has the exact revision_ids that
1291
altered it listed explicitly.
1293
selected_revision_ids = set(revision_ids)
1294
w = _inv_weave or self.get_inventory_weave()
1295
pb = ui.ui_factory.nested_progress_bar()
1297
return self._find_file_ids_from_xml_inventory_lines(
1298
w.iter_lines_added_or_present_in_versions(
1299
selected_revision_ids, pb=pb),
1300
selected_revision_ids)
1304
def iter_files_bytes(self, desired_files):
1305
"""Iterate through file versions.
1307
Files will not necessarily be returned in the order they occur in
1308
desired_files. No specific order is guaranteed.
1310
Yields pairs of identifier, bytes_iterator. identifier is an opaque
1311
value supplied by the caller as part of desired_files. It should
1312
uniquely identify the file version in the caller's context. (Examples:
1313
an index number or a TreeTransform trans_id.)
1315
bytes_iterator is an iterable of bytestrings for the file. The
1316
kind of iterable and length of the bytestrings are unspecified, but for
1317
this implementation, it is a list of lines produced by
1318
VersionedFile.get_lines().
1320
:param desired_files: a list of (file_id, revision_id, identifier)
1323
transaction = self.get_transaction()
1324
for file_id, revision_id, callable_data in desired_files:
1326
weave = self.weave_store.get_weave(file_id, transaction)
1327
except errors.NoSuchFile:
1328
raise errors.NoSuchIdInRepository(self, file_id)
1329
yield callable_data, weave.get_lines(revision_id)
1331
def _generate_text_key_index(self, text_key_references=None,
1333
"""Generate a new text key index for the repository.
1335
This is an expensive function that will take considerable time to run.
1337
:return: A dict mapping text keys ((file_id, revision_id) tuples) to a
1338
list of parents, also text keys. When a given key has no parents,
1339
the parents list will be [NULL_REVISION].
1341
# All revisions, to find inventory parents.
1342
if ancestors is None:
1343
graph = self.get_graph()
1344
ancestors = graph.get_parent_map(self.all_revision_ids())
1345
if text_key_references is None:
1346
text_key_references = self.find_text_key_references()
1347
pb = ui.ui_factory.nested_progress_bar()
1349
return self._do_generate_text_key_index(ancestors,
1350
text_key_references, pb)
1354
def _do_generate_text_key_index(self, ancestors, text_key_references, pb):
1355
"""Helper for _generate_text_key_index to avoid deep nesting."""
1356
revision_order = tsort.topo_sort(ancestors)
1357
invalid_keys = set()
1359
for revision_id in revision_order:
1360
revision_keys[revision_id] = set()
1361
text_count = len(text_key_references)
1362
# a cache of the text keys to allow reuse; costs a dict of all the
1363
# keys, but saves a 2-tuple for every child of a given key.
1365
for text_key, valid in text_key_references.iteritems():
1367
invalid_keys.add(text_key)
1369
revision_keys[text_key[1]].add(text_key)
1370
text_key_cache[text_key] = text_key
1371
del text_key_references
1373
text_graph = graph.Graph(graph.DictParentsProvider(text_index))
1374
NULL_REVISION = _mod_revision.NULL_REVISION
1375
# Set a cache with a size of 10 - this suffices for bzr.dev but may be
1376
# too small for large or very branchy trees. However, for 55K path
1377
# trees, it would be easy to use too much memory trivially. Ideally we
1378
# could gauge this by looking at available real memory etc, but this is
1379
# always a tricky proposition.
1380
inventory_cache = lru_cache.LRUCache(10)
1381
batch_size = 10 # should be ~150MB on a 55K path tree
1382
batch_count = len(revision_order) / batch_size + 1
1384
pb.update("Calculating text parents.", processed_texts, text_count)
1385
for offset in xrange(batch_count):
1386
to_query = revision_order[offset * batch_size:(offset + 1) *
1390
for rev_tree in self.revision_trees(to_query):
1391
revision_id = rev_tree.get_revision_id()
1392
parent_ids = ancestors[revision_id]
1393
for text_key in revision_keys[revision_id]:
1394
pb.update("Calculating text parents.", processed_texts)
1395
processed_texts += 1
1396
candidate_parents = []
1397
for parent_id in parent_ids:
1398
parent_text_key = (text_key[0], parent_id)
1400
check_parent = parent_text_key not in \
1401
revision_keys[parent_id]
1403
# the parent parent_id is a ghost:
1404
check_parent = False
1405
# truncate the derived graph against this ghost.
1406
parent_text_key = None
1408
# look at the parent commit details inventories to
1409
# determine possible candidates in the per file graph.
1412
inv = inventory_cache[parent_id]
1414
inv = self.revision_tree(parent_id).inventory
1415
inventory_cache[parent_id] = inv
1416
parent_entry = inv._byid.get(text_key[0], None)
1417
if parent_entry is not None:
1419
text_key[0], parent_entry.revision)
1421
parent_text_key = None
1422
if parent_text_key is not None:
1423
candidate_parents.append(
1424
text_key_cache[parent_text_key])
1425
parent_heads = text_graph.heads(candidate_parents)
1426
new_parents = list(parent_heads)
1427
new_parents.sort(key=lambda x:candidate_parents.index(x))
1428
if new_parents == []:
1429
new_parents = [NULL_REVISION]
1430
text_index[text_key] = new_parents
1432
for text_key in invalid_keys:
1433
text_index[text_key] = [NULL_REVISION]
1436
def item_keys_introduced_by(self, revision_ids, _files_pb=None):
1437
"""Get an iterable listing the keys of all the data introduced by a set
1440
The keys will be ordered so that the corresponding items can be safely
1441
fetched and inserted in that order.
1443
:returns: An iterable producing tuples of (knit-kind, file-id,
1444
versions). knit-kind is one of 'file', 'inventory', 'signatures',
1445
'revisions'. file-id is None unless knit-kind is 'file'.
1447
# XXX: it's a bit weird to control the inventory weave caching in this
1448
# generator. Ideally the caching would be done in fetch.py I think. Or
1449
# maybe this generator should explicitly have the contract that it
1450
# should not be iterated until the previously yielded item has been
1452
inv_w = self.get_inventory_weave()
1454
# file ids that changed
1455
file_ids = self.fileids_altered_by_revision_ids(revision_ids, inv_w)
1457
num_file_ids = len(file_ids)
1458
for file_id, altered_versions in file_ids.iteritems():
1459
if _files_pb is not None:
1460
_files_pb.update("fetch texts", count, num_file_ids)
1462
yield ("file", file_id, altered_versions)
1463
# We're done with the files_pb. Note that it finished by the caller,
1464
# just as it was created by the caller.
1468
yield ("inventory", None, revision_ids)
1471
revisions_with_signatures = set()
1472
for rev_id in revision_ids:
1474
self.get_signature_text(rev_id)
1475
except errors.NoSuchRevision:
1479
revisions_with_signatures.add(rev_id)
1480
yield ("signatures", None, revisions_with_signatures)
1483
yield ("revisions", None, revision_ids)
1486
def get_inventory_weave(self):
1487
return self.control_weaves.get_weave('inventory',
1488
self.get_transaction())
1491
def get_inventory(self, revision_id):
1492
"""Get Inventory object by revision id."""
1493
return self.iter_inventories([revision_id]).next()
1495
def iter_inventories(self, revision_ids):
1496
"""Get many inventories by revision_ids.
1498
This will buffer some or all of the texts used in constructing the
1499
inventories in memory, but will only parse a single inventory at a
1502
:return: An iterator of inventories.
1504
assert None not in revision_ids
1505
assert _mod_revision.NULL_REVISION not in revision_ids
1506
return self._iter_inventories(revision_ids)
1508
def _iter_inventories(self, revision_ids):
1509
"""single-document based inventory iteration."""
1510
texts = self.get_inventory_weave().get_texts(revision_ids)
1511
for text, revision_id in zip(texts, revision_ids):
1512
yield self.deserialise_inventory(revision_id, text)
1514
def deserialise_inventory(self, revision_id, xml):
1515
"""Transform the xml into an inventory object.
1517
:param revision_id: The expected revision id of the inventory.
1518
:param xml: A serialised inventory.
1520
result = self._serializer.read_inventory_from_string(xml, revision_id)
1521
if result.revision_id != revision_id:
1522
raise AssertionError('revision id mismatch %s != %s' % (
1523
result.revision_id, revision_id))
1526
def serialise_inventory(self, inv):
1527
return self._serializer.write_inventory_to_string(inv)
1529
def _serialise_inventory_to_lines(self, inv):
1530
return self._serializer.write_inventory_to_lines(inv)
1532
def get_serializer_format(self):
1533
return self._serializer.format_num
1536
def get_inventory_xml(self, revision_id):
1537
"""Get inventory XML as a file object."""
1539
assert isinstance(revision_id, str), type(revision_id)
1540
iw = self.get_inventory_weave()
1541
return iw.get_text(revision_id)
1543
raise errors.HistoryMissing(self, 'inventory', revision_id)
1546
def get_inventory_sha1(self, revision_id):
1547
"""Return the sha1 hash of the inventory entry
1549
return self.get_revision(revision_id).inventory_sha1
1552
@deprecated_method(symbol_versioning.one_four)
1553
def get_revision_graph(self, revision_id=None):
1554
"""Return a dictionary containing the revision graph.
1556
NB: This method should not be used as it accesses the entire graph all
1557
at once, which is much more data than most operations should require.
1559
:param revision_id: The revision_id to get a graph from. If None, then
1560
the entire revision graph is returned. This is a deprecated mode of
1561
operation and will be removed in the future.
1562
:return: a dictionary of revision_id->revision_parents_list.
1564
raise NotImplementedError(self.get_revision_graph)
1567
@deprecated_method(symbol_versioning.one_three)
1568
def get_revision_graph_with_ghosts(self, revision_ids=None):
1569
"""Return a graph of the revisions with ghosts marked as applicable.
1571
:param revision_ids: an iterable of revisions to graph or None for all.
1572
:return: a Graph object with the graph reachable from revision_ids.
1574
if 'evil' in debug.debug_flags:
1576
"get_revision_graph_with_ghosts scales with size of history.")
1577
result = deprecated_graph.Graph()
1578
if not revision_ids:
1579
pending = set(self.all_revision_ids())
1582
pending = set(revision_ids)
1583
# special case NULL_REVISION
1584
if _mod_revision.NULL_REVISION in pending:
1585
pending.remove(_mod_revision.NULL_REVISION)
1586
required = set(pending)
1589
revision_id = pending.pop()
1591
rev = self.get_revision(revision_id)
1592
except errors.NoSuchRevision:
1593
if revision_id in required:
1596
result.add_ghost(revision_id)
1598
for parent_id in rev.parent_ids:
1599
# is this queued or done ?
1600
if (parent_id not in pending and
1601
parent_id not in done):
1603
pending.add(parent_id)
1604
result.add_node(revision_id, rev.parent_ids)
1605
done.add(revision_id)
1608
def iter_reverse_revision_history(self, revision_id):
1609
"""Iterate backwards through revision ids in the lefthand history
1611
:param revision_id: The revision id to start with. All its lefthand
1612
ancestors will be traversed.
1614
graph = self.get_graph()
1615
next_id = revision_id
1617
if next_id in (None, _mod_revision.NULL_REVISION):
1620
# Note: The following line may raise KeyError in the event of
1621
# truncated history. We decided not to have a try:except:raise
1622
# RevisionNotPresent here until we see a use for it, because of the
1623
# cost in an inner loop that is by its very nature O(history).
1624
# Robert Collins 20080326
1625
parents = graph.get_parent_map([next_id])[next_id]
1626
if len(parents) == 0:
1629
next_id = parents[0]
1632
def get_revision_inventory(self, revision_id):
1633
"""Return inventory of a past revision."""
1634
# TODO: Unify this with get_inventory()
1635
# bzr 0.0.6 and later imposes the constraint that the inventory_id
1636
# must be the same as its revision, so this is trivial.
1637
if revision_id is None:
1638
# This does not make sense: if there is no revision,
1639
# then it is the current tree inventory surely ?!
1640
# and thus get_root_id() is something that looks at the last
1641
# commit on the branch, and the get_root_id is an inventory check.
1642
raise NotImplementedError
1643
# return Inventory(self.get_root_id())
1645
return self.get_inventory(revision_id)
1648
def is_shared(self):
1649
"""Return True if this repository is flagged as a shared repository."""
1650
raise NotImplementedError(self.is_shared)
1653
def reconcile(self, other=None, thorough=False):
1654
"""Reconcile this repository."""
1655
from bzrlib.reconcile import RepoReconciler
1656
reconciler = RepoReconciler(self, thorough=thorough)
1657
reconciler.reconcile()
1660
def _refresh_data(self):
1661
"""Helper called from lock_* to ensure coherency with disk.
1663
The default implementation does nothing; it is however possible
1664
for repositories to maintain loaded indices across multiple locks
1665
by checking inside their implementation of this method to see
1666
whether their indices are still valid. This depends of course on
1667
the disk format being validatable in this manner.
1671
def revision_tree(self, revision_id):
1672
"""Return Tree for a revision on this branch.
1674
`revision_id` may be None for the empty tree revision.
1676
# TODO: refactor this to use an existing revision object
1677
# so we don't need to read it in twice.
1678
if revision_id is None or revision_id == _mod_revision.NULL_REVISION:
1679
return RevisionTree(self, Inventory(root_id=None),
1680
_mod_revision.NULL_REVISION)
1682
inv = self.get_revision_inventory(revision_id)
1683
return RevisionTree(self, inv, revision_id)
1685
def revision_trees(self, revision_ids):
1686
"""Return Tree for a revision on this branch.
1688
`revision_id` may not be None or 'null:'"""
1689
inventories = self.iter_inventories(revision_ids)
1690
for inv in inventories:
1691
yield RevisionTree(self, inv, inv.revision_id)
1694
def get_ancestry(self, revision_id, topo_sorted=True):
1695
"""Return a list of revision-ids integrated by a revision.
1697
The first element of the list is always None, indicating the origin
1698
revision. This might change when we have history horizons, or
1699
perhaps we should have a new API.
1701
This is topologically sorted.
1703
if _mod_revision.is_null(revision_id):
1705
if not self.has_revision(revision_id):
1706
raise errors.NoSuchRevision(self, revision_id)
1707
w = self.get_inventory_weave()
1708
candidates = w.get_ancestry(revision_id, topo_sorted)
1709
return [None] + candidates # self._eliminate_revisions_not_present(candidates)
1712
"""Compress the data within the repository.
1714
This operation only makes sense for some repository types. For other
1715
types it should be a no-op that just returns.
1717
This stub method does not require a lock, but subclasses should use
1718
@needs_write_lock as this is a long running call its reasonable to
1719
implicitly lock for the user.
1723
def print_file(self, file, revision_id):
1724
"""Print `file` to stdout.
1726
FIXME RBC 20060125 as John Meinel points out this is a bad api
1727
- it writes to stdout, it assumes that that is valid etc. Fix
1728
by creating a new more flexible convenience function.
1730
tree = self.revision_tree(revision_id)
1731
# use inventory as it was in that revision
1732
file_id = tree.inventory.path2id(file)
1734
# TODO: jam 20060427 Write a test for this code path
1735
# it had a bug in it, and was raising the wrong
1737
raise errors.BzrError("%r is not present in revision %s" % (file, revision_id))
1738
tree.print_file(file_id)
1740
def get_transaction(self):
1741
return self.control_files.get_transaction()
1743
@deprecated_method(symbol_versioning.one_five)
1744
def revision_parents(self, revision_id):
1745
return self.get_inventory_weave().parent_names(revision_id)
1747
@deprecated_method(symbol_versioning.one_one)
1748
def get_parents(self, revision_ids):
1749
"""See StackedParentsProvider.get_parents"""
1750
parent_map = self.get_parent_map(revision_ids)
1751
return [parent_map.get(r, None) for r in revision_ids]
1753
def get_parent_map(self, keys):
1754
"""See graph._StackedParentsProvider.get_parent_map"""
1756
for revision_id in keys:
1757
if revision_id == _mod_revision.NULL_REVISION:
1758
parent_map[revision_id] = ()
1761
parent_id_list = self.get_revision(revision_id).parent_ids
1762
except errors.NoSuchRevision:
1765
if len(parent_id_list) == 0:
1766
parent_ids = (_mod_revision.NULL_REVISION,)
1768
parent_ids = tuple(parent_id_list)
1769
parent_map[revision_id] = parent_ids
1772
def _make_parents_provider(self):
1775
def get_graph(self, other_repository=None):
1776
"""Return the graph walker for this repository format"""
1777
parents_provider = self._make_parents_provider()
1778
if (other_repository is not None and
1779
not self.has_same_location(other_repository)):
1780
parents_provider = graph._StackedParentsProvider(
1781
[parents_provider, other_repository._make_parents_provider()])
1782
return graph.Graph(parents_provider)
1784
def _get_versioned_file_checker(self):
1785
"""Return an object suitable for checking versioned files."""
1786
return _VersionedFileChecker(self)
1788
def revision_ids_to_search_result(self, result_set):
1789
"""Convert a set of revision ids to a graph SearchResult."""
1790
result_parents = set()
1791
for parents in self.get_graph().get_parent_map(
1792
result_set).itervalues():
1793
result_parents.update(parents)
1794
included_keys = result_set.intersection(result_parents)
1795
start_keys = result_set.difference(included_keys)
1796
exclude_keys = result_parents.difference(result_set)
1797
result = graph.SearchResult(start_keys, exclude_keys,
1798
len(result_set), result_set)
1802
def set_make_working_trees(self, new_value):
1803
"""Set the policy flag for making working trees when creating branches.
1805
This only applies to branches that use this repository.
1807
The default is 'True'.
1808
:param new_value: True to restore the default, False to disable making
1811
raise NotImplementedError(self.set_make_working_trees)
1813
def make_working_trees(self):
1814
"""Returns the policy for making working trees on new branches."""
1815
raise NotImplementedError(self.make_working_trees)
1818
def sign_revision(self, revision_id, gpg_strategy):
1819
plaintext = Testament.from_revision(self, revision_id).as_short_text()
1820
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1823
def has_signature_for_revision_id(self, revision_id):
1824
"""Query for a revision signature for revision_id in the repository."""
1825
return self._revision_store.has_signature(revision_id,
1826
self.get_transaction())
1829
def get_signature_text(self, revision_id):
1830
"""Return the text for a signature."""
1831
return self._revision_store.get_signature_text(revision_id,
1832
self.get_transaction())
1835
def check(self, revision_ids=None):
1836
"""Check consistency of all history of given revision_ids.
1838
Different repository implementations should override _check().
1840
:param revision_ids: A non-empty list of revision_ids whose ancestry
1841
will be checked. Typically the last revision_id of a branch.
1843
return self._check(revision_ids)
1845
def _check(self, revision_ids):
1846
result = check.Check(self)
1850
def _warn_if_deprecated(self):
1851
global _deprecation_warning_done
1852
if _deprecation_warning_done:
1854
_deprecation_warning_done = True
1855
warning("Format %s for %s is deprecated - please use 'bzr upgrade' to get better performance"
1856
% (self._format, self.bzrdir.transport.base))
1858
def supports_rich_root(self):
1859
return self._format.rich_root_data
1861
def _check_ascii_revisionid(self, revision_id, method):
1862
"""Private helper for ascii-only repositories."""
1863
# weave repositories refuse to store revisionids that are non-ascii.
1864
if revision_id is not None:
1865
# weaves require ascii revision ids.
1866
if isinstance(revision_id, unicode):
1868
revision_id.encode('ascii')
1869
except UnicodeEncodeError:
1870
raise errors.NonAsciiRevisionId(method, self)
1873
revision_id.decode('ascii')
1874
except UnicodeDecodeError:
1875
raise errors.NonAsciiRevisionId(method, self)
1877
def revision_graph_can_have_wrong_parents(self):
1878
"""Is it possible for this repository to have a revision graph with
1881
If True, then this repository must also implement
1882
_find_inconsistent_revision_parents so that check and reconcile can
1883
check for inconsistencies before proceeding with other checks that may
1884
depend on the revision index being consistent.
1886
raise NotImplementedError(self.revision_graph_can_have_wrong_parents)
1889
# remove these delegates a while after bzr 0.15
1890
def __make_delegated(name, from_module):
1891
def _deprecated_repository_forwarder():
1892
symbol_versioning.warn('%s moved to %s in bzr 0.15'
1893
% (name, from_module),
1896
m = __import__(from_module, globals(), locals(), [name])
1898
return getattr(m, name)
1899
except AttributeError:
1900
raise AttributeError('module %s has no name %s'
1902
globals()[name] = _deprecated_repository_forwarder
1905
'AllInOneRepository',
1906
'WeaveMetaDirRepository',
1907
'PreSplitOutRepositoryFormat',
1908
'RepositoryFormat4',
1909
'RepositoryFormat5',
1910
'RepositoryFormat6',
1911
'RepositoryFormat7',
1913
__make_delegated(_name, 'bzrlib.repofmt.weaverepo')
1917
'RepositoryFormatKnit',
1918
'RepositoryFormatKnit1',
1920
__make_delegated(_name, 'bzrlib.repofmt.knitrepo')
1923
def install_revision(repository, rev, revision_tree):
1924
"""Install all revision data into a repository."""
1925
install_revisions(repository, [(rev, revision_tree, None)])
1928
def install_revisions(repository, iterable, num_revisions=None, pb=None):
1929
"""Install all revision data into a repository.
1931
Accepts an iterable of revision, tree, signature tuples. The signature
1934
repository.start_write_group()
1936
for n, (revision, revision_tree, signature) in enumerate(iterable):
1937
_install_revision(repository, revision, revision_tree, signature)
1939
pb.update('Transferring revisions', n + 1, num_revisions)
1941
repository.abort_write_group()
1944
repository.commit_write_group()
1947
def _install_revision(repository, rev, revision_tree, signature):
1948
"""Install all revision data into a repository."""
1949
present_parents = []
1951
for p_id in rev.parent_ids:
1952
if repository.has_revision(p_id):
1953
present_parents.append(p_id)
1954
parent_trees[p_id] = repository.revision_tree(p_id)
1956
parent_trees[p_id] = repository.revision_tree(None)
1958
inv = revision_tree.inventory
1959
entries = inv.iter_entries()
1960
# backwards compatibility hack: skip the root id.
1961
if not repository.supports_rich_root():
1962
path, root = entries.next()
1963
if root.revision != rev.revision_id:
1964
raise errors.IncompatibleRevision(repr(repository))
1965
# Add the texts that are not already present
1966
for path, ie in entries:
1967
w = repository.weave_store.get_weave_or_empty(ie.file_id,
1968
repository.get_transaction())
1969
if ie.revision not in w:
1971
# FIXME: TODO: The following loop *may* be overlapping/duplicate
1972
# with InventoryEntry.find_previous_heads(). if it is, then there
1973
# is a latent bug here where the parents may have ancestors of each
1975
for revision, tree in parent_trees.iteritems():
1976
if ie.file_id not in tree:
1978
parent_id = tree.inventory[ie.file_id].revision
1979
if parent_id in text_parents:
1981
text_parents.append(parent_id)
1983
vfile = repository.weave_store.get_weave_or_empty(ie.file_id,
1984
repository.get_transaction())
1985
lines = revision_tree.get_file(ie.file_id).readlines()
1986
vfile.add_lines(rev.revision_id, text_parents, lines)
1988
# install the inventory
1989
repository.add_inventory(rev.revision_id, inv, present_parents)
1990
except errors.RevisionAlreadyPresent:
1992
if signature is not None:
1993
repository.add_signature_text(rev.revision_id, signature)
1994
repository.add_revision(rev.revision_id, rev, inv)
1997
class MetaDirRepository(Repository):
1998
"""Repositories in the new meta-dir layout."""
2000
def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
2001
super(MetaDirRepository, self).__init__(_format,
2007
dir_mode = self.control_files._dir_mode
2008
file_mode = self.control_files._file_mode
2011
def is_shared(self):
2012
"""Return True if this repository is flagged as a shared repository."""
2013
return self.control_files._transport.has('shared-storage')
2016
def set_make_working_trees(self, new_value):
2017
"""Set the policy flag for making working trees when creating branches.
2019
This only applies to branches that use this repository.
2021
The default is 'True'.
2022
:param new_value: True to restore the default, False to disable making
2027
self.control_files._transport.delete('no-working-trees')
2028
except errors.NoSuchFile:
2031
self.control_files.put_utf8('no-working-trees', '')
2033
def make_working_trees(self):
2034
"""Returns the policy for making working trees on new branches."""
2035
return not self.control_files._transport.has('no-working-trees')
2038
class MetaDirVersionedFileRepository(MetaDirRepository):
2039
"""Repositories in a meta-dir, that work via versioned file objects."""
2041
def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
2042
super(MetaDirVersionedFileRepository, self).__init__(_format, a_bzrdir,
2043
control_files, _revision_store, control_store, text_store)
2044
_revision_store.get_scope = self.get_transaction
2045
control_store.get_scope = self.get_transaction
2046
text_store.get_scope = self.get_transaction
2049
class RepositoryFormatRegistry(registry.Registry):
2050
"""Registry of RepositoryFormats."""
2052
def get(self, format_string):
2053
r = registry.Registry.get(self, format_string)
2059
format_registry = RepositoryFormatRegistry()
2060
"""Registry of formats, indexed by their identifying format string.
2062
This can contain either format instances themselves, or classes/factories that
2063
can be called to obtain one.
2067
#####################################################################
2068
# Repository Formats
2070
class RepositoryFormat(object):
2071
"""A repository format.
2073
Formats provide three things:
2074
* An initialization routine to construct repository data on disk.
2075
* a format string which is used when the BzrDir supports versioned
2077
* an open routine which returns a Repository instance.
2079
There is one and only one Format subclass for each on-disk format. But
2080
there can be one Repository subclass that is used for several different
2081
formats. The _format attribute on a Repository instance can be used to
2082
determine the disk format.
2084
Formats are placed in an dict by their format string for reference
2085
during opening. These should be subclasses of RepositoryFormat
2088
Once a format is deprecated, just deprecate the initialize and open
2089
methods on the format class. Do not deprecate the object, as the
2090
object will be created every system load.
2092
Common instance attributes:
2093
_matchingbzrdir - the bzrdir format that the repository format was
2094
originally written to work with. This can be used if manually
2095
constructing a bzrdir and repository, or more commonly for test suite
2099
# Set to True or False in derived classes. True indicates that the format
2100
# supports ghosts gracefully.
2101
supports_ghosts = None
2102
# Can this repository be given external locations to lookup additional
2103
# data. Set to True or False in derived classes.
2104
supports_external_lookups = None
2107
return "<%s>" % self.__class__.__name__
2109
def __eq__(self, other):
2110
# format objects are generally stateless
2111
return isinstance(other, self.__class__)
2113
def __ne__(self, other):
2114
return not self == other
2117
def find_format(klass, a_bzrdir):
2118
"""Return the format for the repository object in a_bzrdir.
2120
This is used by bzr native formats that have a "format" file in
2121
the repository. Other methods may be used by different types of
2125
transport = a_bzrdir.get_repository_transport(None)
2126
format_string = transport.get("format").read()
2127
return format_registry.get(format_string)
2128
except errors.NoSuchFile:
2129
raise errors.NoRepositoryPresent(a_bzrdir)
2131
raise errors.UnknownFormatError(format=format_string,
2135
def register_format(klass, format):
2136
format_registry.register(format.get_format_string(), format)
2139
def unregister_format(klass, format):
2140
format_registry.remove(format.get_format_string())
2143
def get_default_format(klass):
2144
"""Return the current default format."""
2145
from bzrlib import bzrdir
2146
return bzrdir.format_registry.make_bzrdir('default').repository_format
2148
def _get_control_store(self, repo_transport, control_files):
2149
"""Return the control store for this repository."""
2150
raise NotImplementedError(self._get_control_store)
2152
def get_format_string(self):
2153
"""Return the ASCII format string that identifies this format.
2155
Note that in pre format ?? repositories the format string is
2156
not permitted nor written to disk.
2158
raise NotImplementedError(self.get_format_string)
2160
def get_format_description(self):
2161
"""Return the short description for this format."""
2162
raise NotImplementedError(self.get_format_description)
2164
def _get_revision_store(self, repo_transport, control_files):
2165
"""Return the revision store object for this a_bzrdir."""
2166
raise NotImplementedError(self._get_revision_store)
2168
def _get_text_rev_store(self,
2175
"""Common logic for getting a revision store for a repository.
2177
see self._get_revision_store for the subclass-overridable method to
2178
get the store for a repository.
2180
from bzrlib.store.revision.text import TextRevisionStore
2181
dir_mode = control_files._dir_mode
2182
file_mode = control_files._file_mode
2183
text_store = TextStore(transport.clone(name),
2185
compressed=compressed,
2187
file_mode=file_mode)
2188
_revision_store = TextRevisionStore(text_store, serializer)
2189
return _revision_store
2191
# TODO: this shouldn't be in the base class, it's specific to things that
2192
# use weaves or knits -- mbp 20070207
2193
def _get_versioned_file_store(self,
2198
versionedfile_class=None,
2199
versionedfile_kwargs={},
2201
if versionedfile_class is None:
2202
versionedfile_class = self._versionedfile_class
2203
weave_transport = control_files._transport.clone(name)
2204
dir_mode = control_files._dir_mode
2205
file_mode = control_files._file_mode
2206
return VersionedFileStore(weave_transport, prefixed=prefixed,
2208
file_mode=file_mode,
2209
versionedfile_class=versionedfile_class,
2210
versionedfile_kwargs=versionedfile_kwargs,
2213
def initialize(self, a_bzrdir, shared=False):
2214
"""Initialize a repository of this format in a_bzrdir.
2216
:param a_bzrdir: The bzrdir to put the new repository in it.
2217
:param shared: The repository should be initialized as a sharable one.
2218
:returns: The new repository object.
2220
This may raise UninitializableFormat if shared repository are not
2221
compatible the a_bzrdir.
2223
raise NotImplementedError(self.initialize)
2225
def is_supported(self):
2226
"""Is this format supported?
2228
Supported formats must be initializable and openable.
2229
Unsupported formats may not support initialization or committing or
2230
some other features depending on the reason for not being supported.
2234
def check_conversion_target(self, target_format):
2235
raise NotImplementedError(self.check_conversion_target)
2237
def open(self, a_bzrdir, _found=False):
2238
"""Return an instance of this format for the bzrdir a_bzrdir.
2240
_found is a private parameter, do not use it.
2242
raise NotImplementedError(self.open)
2245
class MetaDirRepositoryFormat(RepositoryFormat):
2246
"""Common base class for the new repositories using the metadir layout."""
2248
rich_root_data = False
2249
supports_tree_reference = False
2250
supports_external_lookups = False
2251
_matchingbzrdir = bzrdir.BzrDirMetaFormat1()
2254
super(MetaDirRepositoryFormat, self).__init__()
2256
def _create_control_files(self, a_bzrdir):
2257
"""Create the required files and the initial control_files object."""
2258
# FIXME: RBC 20060125 don't peek under the covers
2259
# NB: no need to escape relative paths that are url safe.
2260
repository_transport = a_bzrdir.get_repository_transport(self)
2261
control_files = lockable_files.LockableFiles(repository_transport,
2262
'lock', lockdir.LockDir)
2263
control_files.create_lock()
2264
return control_files
2266
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
2267
"""Upload the initial blank content."""
2268
control_files = self._create_control_files(a_bzrdir)
2269
control_files.lock_write()
2271
control_files._transport.mkdir_multi(dirs,
2272
mode=control_files._dir_mode)
2273
for file, content in files:
2274
control_files.put(file, content)
2275
for file, content in utf8_files:
2276
control_files.put_utf8(file, content)
2278
control_files.put_utf8('shared-storage', '')
2280
control_files.unlock()
2283
# formats which have no format string are not discoverable
2284
# and not independently creatable, so are not registered. They're
2285
# all in bzrlib.repofmt.weaverepo now. When an instance of one of these is
2286
# needed, it's constructed directly by the BzrDir. Non-native formats where
2287
# the repository is not separately opened are similar.
2289
format_registry.register_lazy(
2290
'Bazaar-NG Repository format 7',
2291
'bzrlib.repofmt.weaverepo',
2295
format_registry.register_lazy(
2296
'Bazaar-NG Knit Repository Format 1',
2297
'bzrlib.repofmt.knitrepo',
2298
'RepositoryFormatKnit1',
2301
format_registry.register_lazy(
2302
'Bazaar Knit Repository Format 3 (bzr 0.15)\n',
2303
'bzrlib.repofmt.knitrepo',
2304
'RepositoryFormatKnit3',
2307
format_registry.register_lazy(
2308
'Bazaar Knit Repository Format 4 (bzr 1.0)\n',
2309
'bzrlib.repofmt.knitrepo',
2310
'RepositoryFormatKnit4',
2313
# Pack-based formats. There is one format for pre-subtrees, and one for
2314
# post-subtrees to allow ease of testing.
2315
# NOTE: These are experimental in 0.92. Stable in 1.0 and above
2316
format_registry.register_lazy(
2317
'Bazaar pack repository format 1 (needs bzr 0.92)\n',
2318
'bzrlib.repofmt.pack_repo',
2319
'RepositoryFormatKnitPack1',
2321
format_registry.register_lazy(
2322
'Bazaar pack repository format 1 with subtree support (needs bzr 0.92)\n',
2323
'bzrlib.repofmt.pack_repo',
2324
'RepositoryFormatKnitPack3',
2326
format_registry.register_lazy(
2327
'Bazaar pack repository format 1 with rich root (needs bzr 1.0)\n',
2328
'bzrlib.repofmt.pack_repo',
2329
'RepositoryFormatKnitPack4',
2331
# Development formats.
2333
# development 0 - stub to introduce development versioning scheme.
2334
format_registry.register_lazy(
2335
"Bazaar development format 0 (needs bzr.dev from before 1.3)\n",
2336
'bzrlib.repofmt.pack_repo',
2337
'RepositoryFormatPackDevelopment0',
2339
format_registry.register_lazy(
2340
("Bazaar development format 0 with subtree support "
2341
"(needs bzr.dev from before 1.3)\n"),
2342
'bzrlib.repofmt.pack_repo',
2343
'RepositoryFormatPackDevelopment0Subtree',
2345
# 1.3->1.4 go below here
2348
class InterRepository(InterObject):
2349
"""This class represents operations taking place between two repositories.
2351
Its instances have methods like copy_content and fetch, and contain
2352
references to the source and target repositories these operations can be
2355
Often we will provide convenience methods on 'repository' which carry out
2356
operations with another repository - they will always forward to
2357
InterRepository.get(other).method_name(parameters).
2361
"""The available optimised InterRepository types."""
2363
def copy_content(self, revision_id=None):
2364
raise NotImplementedError(self.copy_content)
2366
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2367
"""Fetch the content required to construct revision_id.
2369
The content is copied from self.source to self.target.
2371
:param revision_id: if None all content is copied, if NULL_REVISION no
2373
:param pb: optional progress bar to use for progress reports. If not
2374
provided a default one will be created.
2376
Returns the copied revision count and the failed revisions in a tuple:
2379
raise NotImplementedError(self.fetch)
2381
def _walk_to_common_revisions(self, revision_ids):
2382
"""Walk out from revision_ids in source to revisions target has.
2384
:param revision_ids: The start point for the search.
2385
:return: A set of revision ids.
2387
target_graph = self.target.get_graph()
2388
revision_ids = frozenset(revision_ids)
2389
if set(target_graph.get_parent_map(revision_ids)) == revision_ids:
2390
return graph.SearchResult(revision_ids, set(), 0, set())
2391
missing_revs = set()
2392
source_graph = self.source.get_graph()
2393
# ensure we don't pay silly lookup costs.
2394
searcher = source_graph._make_breadth_first_searcher(revision_ids)
2395
null_set = frozenset([_mod_revision.NULL_REVISION])
2398
next_revs, ghosts = searcher.next_with_ghosts()
2399
except StopIteration:
2401
if revision_ids.intersection(ghosts):
2402
absent_ids = set(revision_ids.intersection(ghosts))
2403
# If all absent_ids are present in target, no error is needed.
2404
absent_ids.difference_update(
2405
set(target_graph.get_parent_map(absent_ids)))
2407
raise errors.NoSuchRevision(self.source, absent_ids.pop())
2408
# we don't care about other ghosts as we can't fetch them and
2409
# haven't been asked to.
2410
next_revs = set(next_revs)
2411
# we always have NULL_REVISION present.
2412
have_revs = set(target_graph.get_parent_map(next_revs)).union(null_set)
2413
missing_revs.update(next_revs - have_revs)
2414
searcher.stop_searching_any(have_revs)
2415
return searcher.get_result()
2417
@deprecated_method(symbol_versioning.one_two)
2419
def missing_revision_ids(self, revision_id=None, find_ghosts=True):
2420
"""Return the revision ids that source has that target does not.
2422
These are returned in topological order.
2424
:param revision_id: only return revision ids included by this
2426
:param find_ghosts: If True find missing revisions in deep history
2427
rather than just finding the surface difference.
2429
return list(self.search_missing_revision_ids(
2430
revision_id, find_ghosts).get_keys())
2433
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
2434
"""Return the revision ids that source has that target does not.
2436
:param revision_id: only return revision ids included by this
2438
:param find_ghosts: If True find missing revisions in deep history
2439
rather than just finding the surface difference.
2440
:return: A bzrlib.graph.SearchResult.
2442
# stop searching at found target revisions.
2443
if not find_ghosts and revision_id is not None:
2444
return self._walk_to_common_revisions([revision_id])
2445
# generic, possibly worst case, slow code path.
2446
target_ids = set(self.target.all_revision_ids())
2447
if revision_id is not None:
2448
source_ids = self.source.get_ancestry(revision_id)
2449
assert source_ids[0] is None
2452
source_ids = self.source.all_revision_ids()
2453
result_set = set(source_ids).difference(target_ids)
2454
return self.source.revision_ids_to_search_result(result_set)
2457
def _same_model(source, target):
2458
"""True if source and target have the same data representation."""
2459
if source.supports_rich_root() != target.supports_rich_root():
2461
if source._serializer != target._serializer:
2466
class InterSameDataRepository(InterRepository):
2467
"""Code for converting between repositories that represent the same data.
2469
Data format and model must match for this to work.
2473
def _get_repo_format_to_test(self):
2474
"""Repository format for testing with.
2476
InterSameData can pull from subtree to subtree and from non-subtree to
2477
non-subtree, so we test this with the richest repository format.
2479
from bzrlib.repofmt import knitrepo
2480
return knitrepo.RepositoryFormatKnit3()
2483
def is_compatible(source, target):
2484
return InterRepository._same_model(source, target)
2487
def copy_content(self, revision_id=None):
2488
"""Make a complete copy of the content in self into destination.
2490
This copies both the repository's revision data, and configuration information
2491
such as the make_working_trees setting.
2493
This is a destructive operation! Do not use it on existing
2496
:param revision_id: Only copy the content needed to construct
2497
revision_id and its parents.
2500
self.target.set_make_working_trees(self.source.make_working_trees())
2501
except NotImplementedError:
2503
# but don't bother fetching if we have the needed data now.
2504
if (revision_id not in (None, _mod_revision.NULL_REVISION) and
2505
self.target.has_revision(revision_id)):
2507
self.target.fetch(self.source, revision_id=revision_id)
2510
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2511
"""See InterRepository.fetch()."""
2512
from bzrlib.fetch import GenericRepoFetcher
2513
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2514
self.source, self.source._format, self.target,
2515
self.target._format)
2516
f = GenericRepoFetcher(to_repository=self.target,
2517
from_repository=self.source,
2518
last_revision=revision_id,
2519
pb=pb, find_ghosts=find_ghosts)
2520
return f.count_copied, f.failed_revisions
2523
class InterWeaveRepo(InterSameDataRepository):
2524
"""Optimised code paths between Weave based repositories.
2526
This should be in bzrlib/repofmt/weaverepo.py but we have not yet
2527
implemented lazy inter-object optimisation.
2531
def _get_repo_format_to_test(self):
2532
from bzrlib.repofmt import weaverepo
2533
return weaverepo.RepositoryFormat7()
2536
def is_compatible(source, target):
2537
"""Be compatible with known Weave formats.
2539
We don't test for the stores being of specific types because that
2540
could lead to confusing results, and there is no need to be
2543
from bzrlib.repofmt.weaverepo import (
2549
return (isinstance(source._format, (RepositoryFormat5,
2551
RepositoryFormat7)) and
2552
isinstance(target._format, (RepositoryFormat5,
2554
RepositoryFormat7)))
2555
except AttributeError:
2559
def copy_content(self, revision_id=None):
2560
"""See InterRepository.copy_content()."""
2561
# weave specific optimised path:
2563
self.target.set_make_working_trees(self.source.make_working_trees())
2564
except (errors.RepositoryUpgradeRequired, NotImplemented):
2566
# FIXME do not peek!
2567
if self.source.control_files._transport.listable():
2568
pb = ui.ui_factory.nested_progress_bar()
2570
self.target.weave_store.copy_all_ids(
2571
self.source.weave_store,
2573
from_transaction=self.source.get_transaction(),
2574
to_transaction=self.target.get_transaction())
2575
pb.update('copying inventory', 0, 1)
2576
self.target.control_weaves.copy_multi(
2577
self.source.control_weaves, ['inventory'],
2578
from_transaction=self.source.get_transaction(),
2579
to_transaction=self.target.get_transaction())
2580
self.target._revision_store.text_store.copy_all_ids(
2581
self.source._revision_store.text_store,
2586
self.target.fetch(self.source, revision_id=revision_id)
2589
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2590
"""See InterRepository.fetch()."""
2591
from bzrlib.fetch import GenericRepoFetcher
2592
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2593
self.source, self.source._format, self.target, self.target._format)
2594
f = GenericRepoFetcher(to_repository=self.target,
2595
from_repository=self.source,
2596
last_revision=revision_id,
2597
pb=pb, find_ghosts=find_ghosts)
2598
return f.count_copied, f.failed_revisions
2601
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
2602
"""See InterRepository.missing_revision_ids()."""
2603
# we want all revisions to satisfy revision_id in source.
2604
# but we don't want to stat every file here and there.
2605
# we want then, all revisions other needs to satisfy revision_id
2606
# checked, but not those that we have locally.
2607
# so the first thing is to get a subset of the revisions to
2608
# satisfy revision_id in source, and then eliminate those that
2609
# we do already have.
2610
# this is slow on high latency connection to self, but as as this
2611
# disk format scales terribly for push anyway due to rewriting
2612
# inventory.weave, this is considered acceptable.
2614
if revision_id is not None:
2615
source_ids = self.source.get_ancestry(revision_id)
2616
assert source_ids[0] is None
2619
source_ids = self.source._all_possible_ids()
2620
source_ids_set = set(source_ids)
2621
# source_ids is the worst possible case we may need to pull.
2622
# now we want to filter source_ids against what we actually
2623
# have in target, but don't try to check for existence where we know
2624
# we do not have a revision as that would be pointless.
2625
target_ids = set(self.target._all_possible_ids())
2626
possibly_present_revisions = target_ids.intersection(source_ids_set)
2627
actually_present_revisions = set(
2628
self.target._eliminate_revisions_not_present(possibly_present_revisions))
2629
required_revisions = source_ids_set.difference(actually_present_revisions)
2630
if revision_id is not None:
2631
# we used get_ancestry to determine source_ids then we are assured all
2632
# revisions referenced are present as they are installed in topological order.
2633
# and the tip revision was validated by get_ancestry.
2634
result_set = required_revisions
2636
# if we just grabbed the possibly available ids, then
2637
# we only have an estimate of whats available and need to validate
2638
# that against the revision records.
2640
self.source._eliminate_revisions_not_present(required_revisions))
2641
return self.source.revision_ids_to_search_result(result_set)
2644
class InterKnitRepo(InterSameDataRepository):
2645
"""Optimised code paths between Knit based repositories."""
2648
def _get_repo_format_to_test(self):
2649
from bzrlib.repofmt import knitrepo
2650
return knitrepo.RepositoryFormatKnit1()
2653
def is_compatible(source, target):
2654
"""Be compatible with known Knit formats.
2656
We don't test for the stores being of specific types because that
2657
could lead to confusing results, and there is no need to be
2660
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit
2662
are_knits = (isinstance(source._format, RepositoryFormatKnit) and
2663
isinstance(target._format, RepositoryFormatKnit))
2664
except AttributeError:
2666
return are_knits and InterRepository._same_model(source, target)
2669
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2670
"""See InterRepository.fetch()."""
2671
from bzrlib.fetch import KnitRepoFetcher
2672
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2673
self.source, self.source._format, self.target, self.target._format)
2674
f = KnitRepoFetcher(to_repository=self.target,
2675
from_repository=self.source,
2676
last_revision=revision_id,
2677
pb=pb, find_ghosts=find_ghosts)
2678
return f.count_copied, f.failed_revisions
2681
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
2682
"""See InterRepository.missing_revision_ids()."""
2683
if revision_id is not None:
2684
source_ids = self.source.get_ancestry(revision_id)
2685
assert source_ids[0] is None
2688
source_ids = self.source.all_revision_ids()
2689
source_ids_set = set(source_ids)
2690
# source_ids is the worst possible case we may need to pull.
2691
# now we want to filter source_ids against what we actually
2692
# have in target, but don't try to check for existence where we know
2693
# we do not have a revision as that would be pointless.
2694
target_ids = set(self.target.all_revision_ids())
2695
possibly_present_revisions = target_ids.intersection(source_ids_set)
2696
actually_present_revisions = set(
2697
self.target._eliminate_revisions_not_present(possibly_present_revisions))
2698
required_revisions = source_ids_set.difference(actually_present_revisions)
2699
if revision_id is not None:
2700
# we used get_ancestry to determine source_ids then we are assured all
2701
# revisions referenced are present as they are installed in topological order.
2702
# and the tip revision was validated by get_ancestry.
2703
result_set = required_revisions
2705
# if we just grabbed the possibly available ids, then
2706
# we only have an estimate of whats available and need to validate
2707
# that against the revision records.
2709
self.source._eliminate_revisions_not_present(required_revisions))
2710
return self.source.revision_ids_to_search_result(result_set)
2713
class InterPackRepo(InterSameDataRepository):
2714
"""Optimised code paths between Pack based repositories."""
2717
def _get_repo_format_to_test(self):
2718
from bzrlib.repofmt import pack_repo
2719
return pack_repo.RepositoryFormatKnitPack1()
2722
def is_compatible(source, target):
2723
"""Be compatible with known Pack formats.
2725
We don't test for the stores being of specific types because that
2726
could lead to confusing results, and there is no need to be
2729
from bzrlib.repofmt.pack_repo import RepositoryFormatPack
2731
are_packs = (isinstance(source._format, RepositoryFormatPack) and
2732
isinstance(target._format, RepositoryFormatPack))
2733
except AttributeError:
2735
return are_packs and InterRepository._same_model(source, target)
2738
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2739
"""See InterRepository.fetch()."""
2740
from bzrlib.repofmt.pack_repo import Packer
2741
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2742
self.source, self.source._format, self.target, self.target._format)
2743
self.count_copied = 0
2744
if revision_id is None:
2746
# everything to do - use pack logic
2747
# to fetch from all packs to one without
2748
# inventory parsing etc, IFF nothing to be copied is in the target.
2750
revision_ids = self.source.all_revision_ids()
2751
revision_keys = [(revid,) for revid in revision_ids]
2752
index = self.target._pack_collection.revision_index.combined_index
2753
present_revision_ids = set(item[1][0] for item in
2754
index.iter_entries(revision_keys))
2755
revision_ids = set(revision_ids) - present_revision_ids
2756
# implementing the TODO will involve:
2757
# - detecting when all of a pack is selected
2758
# - avoiding as much as possible pre-selection, so the
2759
# more-core routines such as create_pack_from_packs can filter in
2760
# a just-in-time fashion. (though having a HEADS list on a
2761
# repository might make this a lot easier, because we could
2762
# sensibly detect 'new revisions' without doing a full index scan.
2763
elif _mod_revision.is_null(revision_id):
2768
revision_ids = self.search_missing_revision_ids(revision_id,
2769
find_ghosts=find_ghosts).get_keys()
2770
except errors.NoSuchRevision:
2771
raise errors.InstallFailed([revision_id])
2772
if len(revision_ids) == 0:
2774
packs = self.source._pack_collection.all_packs()
2775
pack = Packer(self.target._pack_collection, packs, '.fetch',
2776
revision_ids).pack()
2777
if pack is not None:
2778
self.target._pack_collection._save_pack_names()
2779
# Trigger an autopack. This may duplicate effort as we've just done
2780
# a pack creation, but for now it is simpler to think about as
2781
# 'upload data, then repack if needed'.
2782
self.target._pack_collection.autopack()
2783
return (pack.get_revision_count(), [])
2788
def search_missing_revision_ids(self, revision_id=None, find_ghosts=True):
2789
"""See InterRepository.missing_revision_ids().
2791
:param find_ghosts: Find ghosts throughout the ancestry of
2794
if not find_ghosts and revision_id is not None:
2795
return self._walk_to_common_revisions([revision_id])
2796
elif revision_id is not None:
2797
source_ids = self.source.get_ancestry(revision_id)
2798
assert source_ids[0] is None
2801
source_ids = self.source.all_revision_ids()
2802
# source_ids is the worst possible case we may need to pull.
2803
# now we want to filter source_ids against what we actually
2804
# have in target, but don't try to check for existence where we know
2805
# we do not have a revision as that would be pointless.
2806
target_ids = set(self.target.all_revision_ids())
2807
result_set = set(source_ids).difference(target_ids)
2808
return self.source.revision_ids_to_search_result(result_set)
2811
class InterModel1and2(InterRepository):
2814
def _get_repo_format_to_test(self):
2818
def is_compatible(source, target):
2819
if not source.supports_rich_root() and target.supports_rich_root():
2825
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2826
"""See InterRepository.fetch()."""
2827
from bzrlib.fetch import Model1toKnit2Fetcher
2828
f = Model1toKnit2Fetcher(to_repository=self.target,
2829
from_repository=self.source,
2830
last_revision=revision_id,
2831
pb=pb, find_ghosts=find_ghosts)
2832
return f.count_copied, f.failed_revisions
2835
def copy_content(self, revision_id=None):
2836
"""Make a complete copy of the content in self into destination.
2838
This is a destructive operation! Do not use it on existing
2841
:param revision_id: Only copy the content needed to construct
2842
revision_id and its parents.
2845
self.target.set_make_working_trees(self.source.make_working_trees())
2846
except NotImplementedError:
2848
# but don't bother fetching if we have the needed data now.
2849
if (revision_id not in (None, _mod_revision.NULL_REVISION) and
2850
self.target.has_revision(revision_id)):
2852
self.target.fetch(self.source, revision_id=revision_id)
2855
class InterKnit1and2(InterKnitRepo):
2858
def _get_repo_format_to_test(self):
2862
def is_compatible(source, target):
2863
"""Be compatible with Knit1 source and Knit3 target"""
2864
from bzrlib.repofmt.knitrepo import RepositoryFormatKnit3
2866
from bzrlib.repofmt.knitrepo import (RepositoryFormatKnit1,
2867
RepositoryFormatKnit3)
2868
from bzrlib.repofmt.pack_repo import (
2869
RepositoryFormatKnitPack1,
2870
RepositoryFormatKnitPack3,
2871
RepositoryFormatPackDevelopment0,
2872
RepositoryFormatPackDevelopment0Subtree,
2875
RepositoryFormatKnit1,
2876
RepositoryFormatKnitPack1,
2877
RepositoryFormatPackDevelopment0,
2880
RepositoryFormatKnit3,
2881
RepositoryFormatKnitPack3,
2882
RepositoryFormatPackDevelopment0Subtree,
2884
return (isinstance(source._format, nosubtrees) and
2885
isinstance(target._format, subtrees))
2886
except AttributeError:
2890
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2891
"""See InterRepository.fetch()."""
2892
from bzrlib.fetch import Knit1to2Fetcher
2893
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
2894
self.source, self.source._format, self.target,
2895
self.target._format)
2896
f = Knit1to2Fetcher(to_repository=self.target,
2897
from_repository=self.source,
2898
last_revision=revision_id,
2899
pb=pb, find_ghosts=find_ghosts)
2900
return f.count_copied, f.failed_revisions
2903
class InterDifferingSerializer(InterKnitRepo):
2906
def _get_repo_format_to_test(self):
2910
def is_compatible(source, target):
2911
"""Be compatible with Knit2 source and Knit3 target"""
2912
if source.supports_rich_root() != target.supports_rich_root():
2914
# Ideally, we'd support fetching if the source had no tree references
2915
# even if it supported them...
2916
if (getattr(source, '_format.supports_tree_reference', False) and
2917
not getattr(target, '_format.supports_tree_reference', False)):
2922
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2923
"""See InterRepository.fetch()."""
2924
revision_ids = self.target.search_missing_revision_ids(self.source,
2925
revision_id, find_ghosts=find_ghosts).get_keys()
2926
revision_ids = tsort.topo_sort(
2927
self.source.get_graph().get_parent_map(revision_ids))
2928
def revisions_iterator():
2929
for current_revision_id in revision_ids:
2930
revision = self.source.get_revision(current_revision_id)
2931
tree = self.source.revision_tree(current_revision_id)
2933
signature = self.source.get_signature_text(
2934
current_revision_id)
2935
except errors.NoSuchRevision:
2937
yield revision, tree, signature
2939
my_pb = ui.ui_factory.nested_progress_bar()
2944
install_revisions(self.target, revisions_iterator(),
2945
len(revision_ids), pb)
2947
if my_pb is not None:
2949
return len(revision_ids), 0
2952
class InterRemoteToOther(InterRepository):
2954
def __init__(self, source, target):
2955
InterRepository.__init__(self, source, target)
2956
self._real_inter = None
2959
def is_compatible(source, target):
2960
if not isinstance(source, remote.RemoteRepository):
2962
# Is source's model compatible with target's model?
2963
source._ensure_real()
2964
real_source = source._real_repository
2965
assert not isinstance(real_source, remote.RemoteRepository), (
2966
"We don't support remote repos backed by remote repos yet.")
2967
return InterRepository._same_model(real_source, target)
2970
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
2971
"""See InterRepository.fetch()."""
2972
from bzrlib.fetch import RemoteToOtherFetcher
2973
mutter("Using fetch logic to copy between %s(remote) and %s(%s)",
2974
self.source, self.target, self.target._format)
2975
# TODO: jam 20070210 This should be an assert, not a translate
2976
revision_id = osutils.safe_revision_id(revision_id)
2977
f = RemoteToOtherFetcher(to_repository=self.target,
2978
from_repository=self.source,
2979
last_revision=revision_id,
2980
pb=pb, find_ghosts=find_ghosts)
2981
return f.count_copied, f.failed_revisions
2984
def _get_repo_format_to_test(self):
2988
class InterOtherToRemote(InterRepository):
2990
def __init__(self, source, target):
2991
InterRepository.__init__(self, source, target)
2992
self._real_inter = None
2995
def is_compatible(source, target):
2996
if isinstance(target, remote.RemoteRepository):
3000
def _ensure_real_inter(self):
3001
if self._real_inter is None:
3002
self.target._ensure_real()
3003
real_target = self.target._real_repository
3004
self._real_inter = InterRepository.get(self.source, real_target)
3006
def copy_content(self, revision_id=None):
3007
self._ensure_real_inter()
3008
self._real_inter.copy_content(revision_id=revision_id)
3010
def fetch(self, revision_id=None, pb=None, find_ghosts=False):
3011
self._ensure_real_inter()
3012
self._real_inter.fetch(revision_id=revision_id, pb=pb,
3013
find_ghosts=find_ghosts)
3016
def _get_repo_format_to_test(self):
3020
InterRepository.register_optimiser(InterDifferingSerializer)
3021
InterRepository.register_optimiser(InterSameDataRepository)
3022
InterRepository.register_optimiser(InterWeaveRepo)
3023
InterRepository.register_optimiser(InterKnitRepo)
3024
InterRepository.register_optimiser(InterModel1and2)
3025
InterRepository.register_optimiser(InterKnit1and2)
3026
InterRepository.register_optimiser(InterPackRepo)
3027
InterRepository.register_optimiser(InterRemoteToOther)
3028
InterRepository.register_optimiser(InterOtherToRemote)
3031
class CopyConverter(object):
3032
"""A repository conversion tool which just performs a copy of the content.
3034
This is slow but quite reliable.
3037
def __init__(self, target_format):
3038
"""Create a CopyConverter.
3040
:param target_format: The format the resulting repository should be.
3042
self.target_format = target_format
3044
def convert(self, repo, pb):
3045
"""Perform the conversion of to_convert, giving feedback via pb.
3047
:param to_convert: The disk object to convert.
3048
:param pb: a progress bar to use for progress information.
3053
# this is only useful with metadir layouts - separated repo content.
3054
# trigger an assertion if not such
3055
repo._format.get_format_string()
3056
self.repo_dir = repo.bzrdir
3057
self.step('Moving repository to repository.backup')
3058
self.repo_dir.transport.move('repository', 'repository.backup')
3059
backup_transport = self.repo_dir.transport.clone('repository.backup')
3060
repo._format.check_conversion_target(self.target_format)
3061
self.source_repo = repo._format.open(self.repo_dir,
3063
_override_transport=backup_transport)
3064
self.step('Creating new repository')
3065
converted = self.target_format.initialize(self.repo_dir,
3066
self.source_repo.is_shared())
3067
converted.lock_write()
3069
self.step('Copying content into repository.')
3070
self.source_repo.copy_content_into(converted)
3073
self.step('Deleting old repository content.')
3074
self.repo_dir.transport.delete_tree('repository.backup')
3075
self.pb.note('repository converted')
3077
def step(self, message):
3078
"""Update the pb by a step."""
3080
self.pb.update(message, self.count, self.total)
3092
def _unescaper(match, _map=_unescape_map):
3093
code = match.group(1)
3097
if not code.startswith('#'):
3099
return unichr(int(code[1:])).encode('utf8')
3105
def _unescape_xml(data):
3106
"""Unescape predefined XML entities in a string of data."""
3108
if _unescape_re is None:
3109
_unescape_re = re.compile('\&([^;]*);')
3110
return _unescape_re.sub(_unescaper, data)
3113
class _VersionedFileChecker(object):
3115
def __init__(self, repository):
3116
self.repository = repository
3117
self.text_index = self.repository._generate_text_key_index()
3119
def calculate_file_version_parents(self, revision_id, file_id):
3120
"""Calculate the correct parents for a file version according to
3123
parent_keys = self.text_index[(file_id, revision_id)]
3124
if parent_keys == [_mod_revision.NULL_REVISION]:
3126
# strip the file_id, for the weave api
3127
return tuple([revision_id for file_id, revision_id in parent_keys])
3129
def check_file_version_parents(self, weave, file_id):
3130
"""Check the parents stored in a versioned file are correct.
3132
It also detects file versions that are not referenced by their
3133
corresponding revision's inventory.
3135
:returns: A tuple of (wrong_parents, dangling_file_versions).
3136
wrong_parents is a dict mapping {revision_id: (stored_parents,
3137
correct_parents)} for each revision_id where the stored parents
3138
are not correct. dangling_file_versions is a set of (file_id,
3139
revision_id) tuples for versions that are present in this versioned
3140
file, but not used by the corresponding inventory.
3143
unused_versions = set()
3144
versions = weave.versions()
3145
parent_map = weave.get_parent_map(versions)
3146
for num, revision_id in enumerate(versions):
3148
correct_parents = self.calculate_file_version_parents(
3149
revision_id, file_id)
3151
# The version is not part of the used keys.
3152
unused_versions.add(revision_id)
3155
knit_parents = tuple(parent_map[revision_id])
3156
except errors.RevisionNotPresent:
3158
if correct_parents != knit_parents:
3159
wrong_parents[revision_id] = (knit_parents, correct_parents)
3160
return wrong_parents, unused_versions
3163
def _old_get_graph(repository, revision_id):
3164
"""DO NOT USE. That is all. I'm serious."""
3165
graph = repository.get_graph()
3166
revision_graph = dict(((key, value) for key, value in
3167
graph.iter_ancestry([revision_id]) if value is not None))
3168
return _strip_NULL_ghosts(revision_graph)
3171
def _strip_NULL_ghosts(revision_graph):
3172
"""Also don't use this. more compatibility code for unmigrated clients."""
3173
# Filter ghosts, and null:
3174
if _mod_revision.NULL_REVISION in revision_graph:
3175
del revision_graph[_mod_revision.NULL_REVISION]
3176
for key, parents in revision_graph.items():
3177
revision_graph[key] = tuple(parent for parent in parents if parent
3179
return revision_graph
added
removed
bzrlib/repository.py
