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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from copy import deepcopy
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from cStringIO import StringIO
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from unittest import TestSuite
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import bzrlib.bzrdir as bzrdir
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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import bzrlib.errors as errors
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from bzrlib.errors import InvalidRevisionId
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import bzrlib.gpg as gpg
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from bzrlib.graph import Graph
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from bzrlib.inter import InterObject
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from bzrlib.knit import KnitVersionedFile, KnitPlainFactory
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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from bzrlib.osutils import safe_unicode
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from bzrlib.revision import NULL_REVISION
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from bzrlib.store.versioned import VersionedFileStore, WeaveStore
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from bzrlib.store.text import TextStore
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from bzrlib.symbol_versioning import *
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from bzrlib.trace import mutter, note
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from bzrlib.tree import RevisionTree
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from bzrlib.tsort import topo_sort
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from bzrlib.testament import Testament
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from bzrlib.tree import EmptyTree
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from bzrlib.weave import WeaveFile
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class Repository(object):
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"""Repository holding history for one or more branches.
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The repository holds and retrieves historical information including
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revisions and file history. It's normally accessed only by the Branch,
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which views a particular line of development through that history.
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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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def add_inventory(self, revid, inv, parents):
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"""Add the inventory inv to the repository as revid.
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:param parents: The revision ids of the parents that revid
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is known to have and are in the repository already.
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returns the sha1 of the serialized inventory.
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inv_text = bzrlib.xml5.serializer_v5.write_inventory_to_string(inv)
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inv_sha1 = bzrlib.osutils.sha_string(inv_text)
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inv_vf = self.control_weaves.get_weave('inventory',
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self.get_transaction())
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inv_vf.add_lines(revid, parents, bzrlib.osutils.split_lines(inv_text))
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def add_revision(self, rev_id, rev, inv=None, config=None):
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"""Add rev to the revision store as rev_id.
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:param rev_id: the revision id to use.
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:param rev: The revision object.
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:param inv: The inventory for the revision. if None, it will be looked
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up in the inventory storer
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:param config: If None no digital signature will be created.
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If supplied its signature_needed method will be used
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to determine if a signature should be made.
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if config is not None and config.signature_needed():
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inv = self.get_inventory(rev_id)
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plaintext = Testament(rev, inv).as_short_text()
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self.store_revision_signature(
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gpg.GPGStrategy(config), plaintext, rev_id)
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if not rev_id in self.get_inventory_weave():
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raise errors.WeaveRevisionNotPresent(rev_id,
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self.get_inventory_weave())
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# yes, this is not suitable for adding with ghosts.
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self.add_inventory(rev_id, inv, rev.parent_ids)
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self._revision_store.add_revision(rev, self.get_transaction())
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def _all_possible_ids(self):
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"""Return all the possible revisions that we could find."""
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return self.get_inventory_weave().versions()
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def all_revision_ids(self):
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"""Returns a list of all the revision ids in the repository.
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These are in as much topological order as the underlying store can
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present: for weaves ghosts may lead to a lack of correctness until
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the reweave updates the parents list.
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if self._revision_store.text_store.listable():
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return self._revision_store.all_revision_ids(self.get_transaction())
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result = self._all_possible_ids()
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return self._eliminate_revisions_not_present(result)
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def 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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for id in revision_ids:
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if self.has_revision(id):
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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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self.text_store = text_store
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# backwards compatability
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self.weave_store = text_store
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# not right yet - should be more semantically clear ?
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self.control_store = control_store
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self.control_weaves = control_store
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# TODO: make sure to construct the right store classes, etc, depending
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# on whether escaping is required.
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return '%s(%r)' % (self.__class__.__name__,
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self.bzrdir.transport.base)
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return self.control_files.is_locked()
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def lock_write(self):
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self.control_files.lock_write()
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self.control_files.lock_read()
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def get_physical_lock_status(self):
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return self.control_files.get_physical_lock_status()
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def missing_revision_ids(self, other, revision_id=None):
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"""Return the revision ids that other has that this does not.
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These are returned in topological order.
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revision_id: only return revision ids included by revision_id.
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return InterRepository.get(other, self).missing_revision_ids(revision_id)
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"""Open the repository rooted at base.
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For instance, if the repository is at URL/.bzr/repository,
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Repository.open(URL) -> a Repository instance.
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control = bzrlib.bzrdir.BzrDir.open(base)
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return control.open_repository()
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def copy_content_into(self, destination, revision_id=None, basis=None):
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"""Make a complete copy of the content in self into destination.
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This is a destructive operation! Do not use it on existing
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return InterRepository.get(self, destination).copy_content(revision_id, basis)
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def fetch(self, source, revision_id=None, pb=None):
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"""Fetch the content required to construct revision_id from source.
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If revision_id is None all content is copied.
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return InterRepository.get(source, self).fetch(revision_id=revision_id,
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self.control_files.unlock()
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def clone(self, a_bzrdir, revision_id=None, basis=None):
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"""Clone this repository into a_bzrdir using the current format.
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Currently no check is made that the format of this repository and
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the bzrdir format are compatible. FIXME RBC 20060201.
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if not isinstance(a_bzrdir._format, self.bzrdir._format.__class__):
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# use target default format.
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result = a_bzrdir.create_repository()
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# FIXME RBC 20060209 split out the repository type to avoid this check ?
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elif isinstance(a_bzrdir._format,
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(bzrlib.bzrdir.BzrDirFormat4,
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bzrlib.bzrdir.BzrDirFormat5,
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bzrlib.bzrdir.BzrDirFormat6)):
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result = a_bzrdir.open_repository()
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result = self._format.initialize(a_bzrdir, shared=self.is_shared())
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self.copy_content_into(result, revision_id, basis)
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def has_revision(self, revision_id):
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"""True if this repository has a copy of the revision."""
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return self._revision_store.has_revision_id(revision_id,
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self.get_transaction())
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def get_revision_reconcile(self, revision_id):
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"""'reconcile' helper routine that allows access to a revision always.
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This variant of get_revision does not cross check the weave graph
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against the revision one as get_revision does: but it should only
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be used by reconcile, or reconcile-alike commands that are correcting
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or testing the revision graph.
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if not revision_id or not isinstance(revision_id, basestring):
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raise InvalidRevisionId(revision_id=revision_id, branch=self)
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return self._revision_store.get_revision(revision_id,
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self.get_transaction())
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def get_revision_xml(self, revision_id):
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rev = self.get_revision(revision_id)
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# the current serializer..
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self._revision_store._serializer.write_revision(rev, rev_tmp)
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return rev_tmp.getvalue()
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def get_revision(self, revision_id):
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"""Return the Revision object for a named revision"""
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r = self.get_revision_reconcile(revision_id)
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# weave corruption can lead to absent revision markers that should be
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# the following test is reasonably cheap (it needs a single weave read)
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# and the weave is cached in read transactions. In write transactions
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# it is not cached but typically we only read a small number of
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# revisions. For knits when they are introduced we will probably want
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# to ensure that caching write transactions are in use.
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inv = self.get_inventory_weave()
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self._check_revision_parents(r, inv)
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def _check_revision_parents(self, revision, inventory):
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"""Private to Repository and Fetch.
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This checks the parentage of revision in an inventory weave for
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consistency and is only applicable to inventory-weave-for-ancestry
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using repository formats & fetchers.
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weave_parents = inventory.get_parents(revision.revision_id)
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weave_names = inventory.versions()
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for parent_id in revision.parent_ids:
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if parent_id in weave_names:
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# this parent must not be a ghost.
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if not parent_id in weave_parents:
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raise errors.CorruptRepository(self)
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def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
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signature = gpg_strategy.sign(plaintext)
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self._revision_store.add_revision_signature_text(revision_id,
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self.get_transaction())
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def fileids_altered_by_revision_ids(self, revision_ids):
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"""Find the file ids and versions affected by revisions.
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:param revisions: an iterable containing revision ids.
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:return: a dictionary mapping altered file-ids to an iterable of
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revision_ids. Each altered file-ids has the exact revision_ids that
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altered it listed explicitly.
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assert isinstance(self._format, (RepositoryFormat5,
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RepositoryFormatKnit1)), \
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"fileid_involved only supported for branches which store inventory as unnested xml"
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selected_revision_ids = set(revision_ids)
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w = self.get_inventory_weave()
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# this code needs to read every new line in every inventory for the
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# inventories [revision_ids]. Seeing a line twice is ok. Seeing a line
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# not pesent in one of those inventories is unnecessary but not
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# harmful because we are filtering by the revision id marker in the
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# inventory lines : we only select file ids altered in one of those
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# revisions. We dont need to see all lines in the inventory because
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# only those added in an inventory in rev X can contain a revision=X
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for line in w.iter_lines_added_or_present_in_versions(selected_revision_ids):
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start = line.find('file_id="')+9
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if start < 9: continue
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end = line.find('"', start)
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file_id = _unescape_xml(line[start:end])
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start = line.find('revision="')+10
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if start < 10: continue
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end = line.find('"', start)
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revision_id = _unescape_xml(line[start:end])
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if revision_id in selected_revision_ids:
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result.setdefault(file_id, set()).add(revision_id)
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def get_inventory_weave(self):
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return self.control_weaves.get_weave('inventory',
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self.get_transaction())
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def get_inventory(self, revision_id):
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"""Get Inventory object by hash."""
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xml = self.get_inventory_xml(revision_id)
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return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
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def get_inventory_xml(self, revision_id):
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"""Get inventory XML as a file object."""
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assert isinstance(revision_id, basestring), type(revision_id)
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iw = self.get_inventory_weave()
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return iw.get_text(revision_id)
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raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
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def get_inventory_sha1(self, revision_id):
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"""Return the sha1 hash of the inventory entry
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return self.get_revision(revision_id).inventory_sha1
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def get_revision_graph(self, revision_id=None):
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"""Return a dictionary containing the revision graph.
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:return: a dictionary of revision_id->revision_parents_list.
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weave = self.get_inventory_weave()
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all_revisions = self._eliminate_revisions_not_present(weave.versions())
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entire_graph = dict([(node, weave.get_parents(node)) for
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node in all_revisions])
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if revision_id is None:
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elif revision_id not in entire_graph:
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raise errors.NoSuchRevision(self, revision_id)
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# add what can be reached from revision_id
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pending = set([revision_id])
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while len(pending) > 0:
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result[node] = entire_graph[node]
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for revision_id in result[node]:
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if revision_id not in result:
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pending.add(revision_id)
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def get_revision_graph_with_ghosts(self, revision_ids=None):
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"""Return a graph of the revisions with ghosts marked as applicable.
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:param revision_ids: an iterable of revisions to graph or None for all.
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:return: a Graph object with the graph reachable from revision_ids.
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pending = set(self.all_revision_ids())
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pending = set(revision_ids)
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required = set(revision_ids)
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revision_id = pending.pop()
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rev = self.get_revision(revision_id)
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except errors.NoSuchRevision:
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if revision_id in required:
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result.add_ghost(revision_id)
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for parent_id in rev.parent_ids:
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# is this queued or done ?
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if (parent_id not in pending and
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parent_id not in done):
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pending.add(parent_id)
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result.add_node(revision_id, rev.parent_ids)
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done.add(revision_id)
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def get_revision_inventory(self, revision_id):
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"""Return inventory of a past revision."""
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# TODO: Unify this with get_inventory()
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# bzr 0.0.6 and later imposes the constraint that the inventory_id
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# must be the same as its revision, so this is trivial.
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if revision_id is None:
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# This does not make sense: if there is no revision,
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# then it is the current tree inventory surely ?!
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# and thus get_root_id() is something that looks at the last
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# commit on the branch, and the get_root_id is an inventory check.
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raise NotImplementedError
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# return Inventory(self.get_root_id())
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return self.get_inventory(revision_id)
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"""Return True if this repository is flagged as a shared repository."""
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raise NotImplementedError(self.is_shared)
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def reconcile(self, other=None, thorough=False):
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"""Reconcile this repository."""
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from bzrlib.reconcile import RepoReconciler
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reconciler = RepoReconciler(self, thorough=thorough)
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reconciler.reconcile()
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def revision_tree(self, revision_id):
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"""Return Tree for a revision on this branch.
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`revision_id` may be None for the null revision, in which case
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an `EmptyTree` is returned."""
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# TODO: refactor this to use an existing revision object
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# so we don't need to read it in twice.
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if revision_id is None or revision_id == NULL_REVISION:
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inv = self.get_revision_inventory(revision_id)
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return RevisionTree(self, inv, revision_id)
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def get_ancestry(self, revision_id):
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"""Return a list of revision-ids integrated by a revision.
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This is topologically sorted.
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if revision_id is None:
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if not self.has_revision(revision_id):
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raise errors.NoSuchRevision(self, revision_id)
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w = self.get_inventory_weave()
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candidates = w.get_ancestry(revision_id)
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return [None] + candidates # self._eliminate_revisions_not_present(candidates)
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def print_file(self, file, revision_id):
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"""Print `file` to stdout.
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FIXME RBC 20060125 as John Meinel points out this is a bad api
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- it writes to stdout, it assumes that that is valid etc. Fix
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by creating a new more flexible convenience function.
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tree = self.revision_tree(revision_id)
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# use inventory as it was in that revision
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file_id = tree.inventory.path2id(file)
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raise BzrError("%r is not present in revision %s" % (file, revno))
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revno = self.revision_id_to_revno(revision_id)
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except errors.NoSuchRevision:
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# TODO: This should not be BzrError,
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# but NoSuchFile doesn't fit either
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raise BzrError('%r is not present in revision %s'
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% (file, revision_id))
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raise BzrError('%r is not present in revision %s'
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tree.print_file(file_id)
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def get_transaction(self):
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return self.control_files.get_transaction()
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def revision_parents(self, revid):
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return self.get_inventory_weave().parent_names(revid)
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def set_make_working_trees(self, new_value):
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"""Set the policy flag for making working trees when creating branches.
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This only applies to branches that use this repository.
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The default is 'True'.
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:param new_value: True to restore the default, False to disable making
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raise NotImplementedError(self.set_make_working_trees)
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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raise NotImplementedError(self.make_working_trees)
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def sign_revision(self, revision_id, gpg_strategy):
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plaintext = Testament.from_revision(self, revision_id).as_short_text()
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self.store_revision_signature(gpg_strategy, plaintext, revision_id)
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def has_signature_for_revision_id(self, revision_id):
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"""Query for a revision signature for revision_id in the repository."""
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return self._revision_store.has_signature(revision_id,
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self.get_transaction())
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def get_signature_text(self, revision_id):
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"""Return the text for a signature."""
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return self._revision_store.get_signature_text(revision_id,
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self.get_transaction())
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class AllInOneRepository(Repository):
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"""Legacy support - the repository behaviour for all-in-one branches."""
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def __init__(self, _format, a_bzrdir, _revision_store, control_store, text_store):
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# we reuse one control files instance.
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dir_mode = a_bzrdir._control_files._dir_mode
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file_mode = a_bzrdir._control_files._file_mode
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def get_store(name, compressed=True, prefixed=False):
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# FIXME: This approach of assuming stores are all entirely compressed
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# or entirely uncompressed is tidy, but breaks upgrade from
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# some existing branches where there's a mixture; we probably
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# still want the option to look for both.
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relpath = a_bzrdir._control_files._escape(name)
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store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
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prefixed=prefixed, compressed=compressed,
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#if self._transport.should_cache():
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# cache_path = os.path.join(self.cache_root, name)
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# os.mkdir(cache_path)
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# store = bzrlib.store.CachedStore(store, cache_path)
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# not broken out yet because the controlweaves|inventory_store
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# and text_store | weave_store bits are still different.
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if isinstance(_format, RepositoryFormat4):
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# cannot remove these - there is still no consistent api
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# which allows access to this old info.
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self.inventory_store = get_store('inventory-store')
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text_store = get_store('text-store')
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super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, _revision_store, control_store, text_store)
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"""AllInOne repositories cannot be shared."""
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def set_make_working_trees(self, new_value):
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"""Set the policy flag for making working trees when creating branches.
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This only applies to branches that use this repository.
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The default is 'True'.
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:param new_value: True to restore the default, False to disable making
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raise NotImplementedError(self.set_make_working_trees)
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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def install_revision(repository, rev, revision_tree):
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"""Install all revision data into a repository."""
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for p_id in rev.parent_ids:
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if repository.has_revision(p_id):
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present_parents.append(p_id)
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parent_trees[p_id] = repository.revision_tree(p_id)
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parent_trees[p_id] = EmptyTree()
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inv = revision_tree.inventory
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# Add the texts that are not already present
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for path, ie in inv.iter_entries():
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w = repository.weave_store.get_weave_or_empty(ie.file_id,
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repository.get_transaction())
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if ie.revision not in w:
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for revision, tree in parent_trees.iteritems():
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if ie.file_id not in tree:
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parent_id = tree.inventory[ie.file_id].revision
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if parent_id in text_parents:
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text_parents.append(parent_id)
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vfile = repository.weave_store.get_weave_or_empty(ie.file_id,
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repository.get_transaction())
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lines = revision_tree.get_file(ie.file_id).readlines()
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vfile.add_lines(rev.revision_id, text_parents, lines)
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# install the inventory
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repository.add_inventory(rev.revision_id, inv, present_parents)
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except errors.RevisionAlreadyPresent:
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repository.add_revision(rev.revision_id, rev, inv)
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class MetaDirRepository(Repository):
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"""Repositories in the new meta-dir layout."""
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def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
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super(MetaDirRepository, self).__init__(_format,
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dir_mode = self.control_files._dir_mode
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file_mode = self.control_files._file_mode
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"""Return True if this repository is flagged as a shared repository."""
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return self.control_files._transport.has('shared-storage')
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def set_make_working_trees(self, new_value):
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"""Set the policy flag for making working trees when creating branches.
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This only applies to branches that use this repository.
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The default is 'True'.
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:param new_value: True to restore the default, False to disable making
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self.control_files._transport.delete('no-working-trees')
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except errors.NoSuchFile:
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self.control_files.put_utf8('no-working-trees', '')
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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return not self.control_files._transport.has('no-working-trees')
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class KnitRepository(MetaDirRepository):
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"""Knit format repository."""
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def all_revision_ids(self):
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"""See Repository.all_revision_ids()."""
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return self._revision_store.all_revision_ids(self.get_transaction())
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def fileid_involved_between_revs(self, from_revid, to_revid):
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"""Find file_id(s) which are involved in the changes between revisions.
711
This determines the set of revisions which are involved, and then
712
finds all file ids affected by those revisions.
714
vf = self._get_revision_vf()
715
from_set = set(vf.get_ancestry(from_revid))
716
to_set = set(vf.get_ancestry(to_revid))
717
changed = to_set.difference(from_set)
718
return self._fileid_involved_by_set(changed)
720
def fileid_involved(self, last_revid=None):
721
"""Find all file_ids modified in the ancestry of last_revid.
723
:param last_revid: If None, last_revision() will be used.
726
changed = set(self.all_revision_ids())
728
changed = set(self.get_ancestry(last_revid))
731
return self._fileid_involved_by_set(changed)
734
def get_ancestry(self, revision_id):
735
"""Return a list of revision-ids integrated by a revision.
737
This is topologically sorted.
739
if revision_id is None:
741
vf = self._get_revision_vf()
743
return [None] + vf.get_ancestry(revision_id)
744
except errors.RevisionNotPresent:
745
raise errors.NoSuchRevision(self, revision_id)
748
def get_revision(self, revision_id):
749
"""Return the Revision object for a named revision"""
750
return self.get_revision_reconcile(revision_id)
753
def get_revision_graph(self, revision_id=None):
754
"""Return a dictionary containing the revision graph.
756
:return: a dictionary of revision_id->revision_parents_list.
758
weave = self._get_revision_vf()
759
entire_graph = weave.get_graph()
760
if revision_id is None:
761
return weave.get_graph()
762
elif revision_id not in weave:
763
raise errors.NoSuchRevision(self, revision_id)
765
# add what can be reached from revision_id
767
pending = set([revision_id])
768
while len(pending) > 0:
770
result[node] = weave.get_parents(node)
771
for revision_id in result[node]:
772
if revision_id not in result:
773
pending.add(revision_id)
777
def get_revision_graph_with_ghosts(self, revision_ids=None):
778
"""Return a graph of the revisions with ghosts marked as applicable.
780
:param revision_ids: an iterable of revisions to graph or None for all.
781
:return: a Graph object with the graph reachable from revision_ids.
784
vf = self._get_revision_vf()
785
versions = set(vf.versions())
787
pending = set(self.all_revision_ids())
790
pending = set(revision_ids)
791
required = set(revision_ids)
794
revision_id = pending.pop()
795
if not revision_id in versions:
796
if revision_id in required:
797
raise errors.NoSuchRevision(self, revision_id)
799
result.add_ghost(revision_id)
800
# mark it as done so we dont try for it again.
801
done.add(revision_id)
803
parent_ids = vf.get_parents_with_ghosts(revision_id)
804
for parent_id in parent_ids:
805
# is this queued or done ?
806
if (parent_id not in pending and
807
parent_id not in done):
809
pending.add(parent_id)
810
result.add_node(revision_id, parent_ids)
811
done.add(revision_id)
814
def _get_revision_vf(self):
815
""":return: a versioned file containing the revisions."""
816
vf = self._revision_store.get_revision_file(self.get_transaction())
820
def reconcile(self, other=None, thorough=False):
821
"""Reconcile this repository."""
822
from bzrlib.reconcile import KnitReconciler
823
reconciler = KnitReconciler(self, thorough=thorough)
824
reconciler.reconcile()
827
def revision_parents(self, revid):
828
return self._get_revision_vf().get_parents(rev_id)
830
class RepositoryFormat(object):
831
"""A repository format.
833
Formats provide three things:
834
* An initialization routine to construct repository data on disk.
835
* a format string which is used when the BzrDir supports versioned
837
* an open routine which returns a Repository instance.
839
Formats are placed in an dict by their format string for reference
840
during opening. These should be subclasses of RepositoryFormat
843
Once a format is deprecated, just deprecate the initialize and open
844
methods on the format class. Do not deprecate the object, as the
845
object will be created every system load.
847
Common instance attributes:
848
_matchingbzrdir - the bzrdir format that the repository format was
849
originally written to work with. This can be used if manually
850
constructing a bzrdir and repository, or more commonly for test suite
854
_default_format = None
855
"""The default format used for new repositories."""
858
"""The known formats."""
861
def find_format(klass, a_bzrdir):
862
"""Return the format for the repository object in a_bzrdir."""
864
transport = a_bzrdir.get_repository_transport(None)
865
format_string = transport.get("format").read()
866
return klass._formats[format_string]
867
except errors.NoSuchFile:
868
raise errors.NoRepositoryPresent(a_bzrdir)
870
raise errors.UnknownFormatError(format=format_string)
872
def _get_control_store(self, repo_transport, control_files):
873
"""Return the control store for this repository."""
874
raise NotImplementedError(self._get_control_store)
877
def get_default_format(klass):
878
"""Return the current default format."""
879
return klass._default_format
881
def get_format_string(self):
882
"""Return the ASCII format string that identifies this format.
884
Note that in pre format ?? repositories the format string is
885
not permitted nor written to disk.
887
raise NotImplementedError(self.get_format_string)
889
def get_format_description(self):
890
"""Return the short desciption for this format."""
891
raise NotImplementedError(self.get_format_description)
893
def _get_revision_store(self, repo_transport, control_files):
894
"""Return the revision store object for this a_bzrdir."""
895
raise NotImplementedError(self._get_revision_store)
897
def _get_text_rev_store(self,
904
"""Common logic for getting a revision store for a repository.
906
see self._get_revision_store for the subclass-overridable method to
907
get the store for a repository.
909
from bzrlib.store.revision.text import TextRevisionStore
910
dir_mode = control_files._dir_mode
911
file_mode = control_files._file_mode
912
text_store =TextStore(transport.clone(name),
914
compressed=compressed,
917
_revision_store = TextRevisionStore(text_store, serializer)
918
return _revision_store
920
def _get_versioned_file_store(self,
925
versionedfile_class=WeaveFile,
927
weave_transport = control_files._transport.clone(name)
928
dir_mode = control_files._dir_mode
929
file_mode = control_files._file_mode
930
return VersionedFileStore(weave_transport, prefixed=prefixed,
933
versionedfile_class=versionedfile_class,
936
def initialize(self, a_bzrdir, shared=False):
937
"""Initialize a repository of this format in a_bzrdir.
939
:param a_bzrdir: The bzrdir to put the new repository in it.
940
:param shared: The repository should be initialized as a sharable one.
942
This may raise UninitializableFormat if shared repository are not
943
compatible the a_bzrdir.
946
def is_supported(self):
947
"""Is this format supported?
949
Supported formats must be initializable and openable.
950
Unsupported formats may not support initialization or committing or
951
some other features depending on the reason for not being supported.
955
def open(self, a_bzrdir, _found=False):
956
"""Return an instance of this format for the bzrdir a_bzrdir.
958
_found is a private parameter, do not use it.
960
raise NotImplementedError(self.open)
963
def register_format(klass, format):
964
klass._formats[format.get_format_string()] = format
967
def set_default_format(klass, format):
968
klass._default_format = format
971
def unregister_format(klass, format):
972
assert klass._formats[format.get_format_string()] is format
973
del klass._formats[format.get_format_string()]
976
class PreSplitOutRepositoryFormat(RepositoryFormat):
977
"""Base class for the pre split out repository formats."""
979
def initialize(self, a_bzrdir, shared=False, _internal=False):
980
"""Create a weave repository.
982
TODO: when creating split out bzr branch formats, move this to a common
983
base for Format5, Format6. or something like that.
985
from bzrlib.weavefile import write_weave_v5
986
from bzrlib.weave import Weave
989
raise errors.IncompatibleFormat(self, a_bzrdir._format)
992
# always initialized when the bzrdir is.
993
return self.open(a_bzrdir, _found=True)
995
# Create an empty weave
997
bzrlib.weavefile.write_weave_v5(Weave(), sio)
998
empty_weave = sio.getvalue()
1000
mutter('creating repository in %s.', a_bzrdir.transport.base)
1001
dirs = ['revision-store', 'weaves']
1002
files = [('inventory.weave', StringIO(empty_weave)),
1005
# FIXME: RBC 20060125 dont peek under the covers
1006
# NB: no need to escape relative paths that are url safe.
1007
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
1009
control_files.create_lock()
1010
control_files.lock_write()
1011
control_files._transport.mkdir_multi(dirs,
1012
mode=control_files._dir_mode)
1014
for file, content in files:
1015
control_files.put(file, content)
1017
control_files.unlock()
1018
return self.open(a_bzrdir, _found=True)
1020
def _get_control_store(self, repo_transport, control_files):
1021
"""Return the control store for this repository."""
1022
return self._get_versioned_file_store('',
1027
def _get_text_store(self, transport, control_files):
1028
"""Get a store for file texts for this format."""
1029
raise NotImplementedError(self._get_text_store)
1031
def open(self, a_bzrdir, _found=False):
1032
"""See RepositoryFormat.open()."""
1034
# we are being called directly and must probe.
1035
raise NotImplementedError
1037
repo_transport = a_bzrdir.get_repository_transport(None)
1038
control_files = a_bzrdir._control_files
1039
text_store = self._get_text_store(repo_transport, control_files)
1040
control_store = self._get_control_store(repo_transport, control_files)
1041
_revision_store = self._get_revision_store(repo_transport, control_files)
1042
return AllInOneRepository(_format=self,
1044
_revision_store=_revision_store,
1045
control_store=control_store,
1046
text_store=text_store)
1049
class RepositoryFormat4(PreSplitOutRepositoryFormat):
1050
"""Bzr repository format 4.
1052
This repository format has:
1054
- TextStores for texts, inventories,revisions.
1056
This format is deprecated: it indexes texts using a text id which is
1057
removed in format 5; initializationa and write support for this format
1062
super(RepositoryFormat4, self).__init__()
1063
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
1065
def get_format_description(self):
1066
"""See RepositoryFormat.get_format_description()."""
1067
return "Repository format 4"
1069
def initialize(self, url, shared=False, _internal=False):
1070
"""Format 4 branches cannot be created."""
1071
raise errors.UninitializableFormat(self)
1073
def is_supported(self):
1074
"""Format 4 is not supported.
1076
It is not supported because the model changed from 4 to 5 and the
1077
conversion logic is expensive - so doing it on the fly was not
1082
def _get_control_store(self, repo_transport, control_files):
1083
"""Format 4 repositories have no formal control store at this point.
1085
This will cause any control-file-needing apis to fail - this is desired.
1089
def _get_revision_store(self, repo_transport, control_files):
1090
"""See RepositoryFormat._get_revision_store()."""
1091
from bzrlib.xml4 import serializer_v4
1092
return self._get_text_rev_store(repo_transport,
1095
serializer=serializer_v4)
1097
def _get_text_store(self, transport, control_files):
1098
"""See RepositoryFormat._get_text_store()."""
1101
class RepositoryFormat5(PreSplitOutRepositoryFormat):
1102
"""Bzr control format 5.
1104
This repository format has:
1105
- weaves for file texts and inventory
1107
- TextStores for revisions and signatures.
1111
super(RepositoryFormat5, self).__init__()
1112
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
1114
def get_format_description(self):
1115
"""See RepositoryFormat.get_format_description()."""
1116
return "Weave repository format 5"
1118
def _get_revision_store(self, repo_transport, control_files):
1119
"""See RepositoryFormat._get_revision_store()."""
1120
"""Return the revision store object for this a_bzrdir."""
1121
return self._get_text_rev_store(repo_transport,
1126
def _get_text_store(self, transport, control_files):
1127
"""See RepositoryFormat._get_text_store()."""
1128
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
1131
class RepositoryFormat6(PreSplitOutRepositoryFormat):
1132
"""Bzr control format 6.
1134
This repository format has:
1135
- weaves for file texts and inventory
1136
- hash subdirectory based stores.
1137
- TextStores for revisions and signatures.
1141
super(RepositoryFormat6, self).__init__()
1142
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
1144
def get_format_description(self):
1145
"""See RepositoryFormat.get_format_description()."""
1146
return "Weave repository format 6"
1148
def _get_revision_store(self, repo_transport, control_files):
1149
"""See RepositoryFormat._get_revision_store()."""
1150
return self._get_text_rev_store(repo_transport,
1156
def _get_text_store(self, transport, control_files):
1157
"""See RepositoryFormat._get_text_store()."""
1158
return self._get_versioned_file_store('weaves', transport, control_files)
1161
class MetaDirRepositoryFormat(RepositoryFormat):
1162
"""Common base class for the new repositories using the metadir layour."""
1165
super(MetaDirRepositoryFormat, self).__init__()
1166
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1168
def _create_control_files(self, a_bzrdir):
1169
"""Create the required files and the initial control_files object."""
1170
# FIXME: RBC 20060125 dont peek under the covers
1171
# NB: no need to escape relative paths that are url safe.
1172
repository_transport = a_bzrdir.get_repository_transport(self)
1173
control_files = LockableFiles(repository_transport, 'lock', LockDir)
1174
control_files.create_lock()
1175
return control_files
1177
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1178
"""Upload the initial blank content."""
1179
control_files = self._create_control_files(a_bzrdir)
1180
control_files.lock_write()
1182
control_files._transport.mkdir_multi(dirs,
1183
mode=control_files._dir_mode)
1184
for file, content in files:
1185
control_files.put(file, content)
1186
for file, content in utf8_files:
1187
control_files.put_utf8(file, content)
1189
control_files.put_utf8('shared-storage', '')
1191
control_files.unlock()
1194
class RepositoryFormat7(MetaDirRepositoryFormat):
1195
"""Bzr repository 7.
1197
This repository format has:
1198
- weaves for file texts and inventory
1199
- hash subdirectory based stores.
1200
- TextStores for revisions and signatures.
1201
- a format marker of its own
1202
- an optional 'shared-storage' flag
1203
- an optional 'no-working-trees' flag
1206
def _get_control_store(self, repo_transport, control_files):
1207
"""Return the control store for this repository."""
1208
return self._get_versioned_file_store('',
1213
def get_format_string(self):
1214
"""See RepositoryFormat.get_format_string()."""
1215
return "Bazaar-NG Repository format 7"
1217
def get_format_description(self):
1218
"""See RepositoryFormat.get_format_description()."""
1219
return "Weave repository format 7"
1221
def _get_revision_store(self, repo_transport, control_files):
1222
"""See RepositoryFormat._get_revision_store()."""
1223
return self._get_text_rev_store(repo_transport,
1230
def _get_text_store(self, transport, control_files):
1231
"""See RepositoryFormat._get_text_store()."""
1232
return self._get_versioned_file_store('weaves',
1236
def initialize(self, a_bzrdir, shared=False):
1237
"""Create a weave repository.
1239
:param shared: If true the repository will be initialized as a shared
1242
from bzrlib.weavefile import write_weave_v5
1243
from bzrlib.weave import Weave
1245
# Create an empty weave
1247
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1248
empty_weave = sio.getvalue()
1250
mutter('creating repository in %s.', a_bzrdir.transport.base)
1251
dirs = ['revision-store', 'weaves']
1252
files = [('inventory.weave', StringIO(empty_weave)),
1254
utf8_files = [('format', self.get_format_string())]
1256
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1257
return self.open(a_bzrdir=a_bzrdir, _found=True)
1259
def open(self, a_bzrdir, _found=False, _override_transport=None):
1260
"""See RepositoryFormat.open().
1262
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1263
repository at a slightly different url
1264
than normal. I.e. during 'upgrade'.
1267
format = RepositoryFormat.find_format(a_bzrdir)
1268
assert format.__class__ == self.__class__
1269
if _override_transport is not None:
1270
repo_transport = _override_transport
1272
repo_transport = a_bzrdir.get_repository_transport(None)
1273
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1274
text_store = self._get_text_store(repo_transport, control_files)
1275
control_store = self._get_control_store(repo_transport, control_files)
1276
_revision_store = self._get_revision_store(repo_transport, control_files)
1277
return MetaDirRepository(_format=self,
1279
control_files=control_files,
1280
_revision_store=_revision_store,
1281
control_store=control_store,
1282
text_store=text_store)
1285
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1286
"""Bzr repository knit format 1.
1288
This repository format has:
1289
- knits for file texts and inventory
1290
- hash subdirectory based stores.
1291
- knits for revisions and signatures
1292
- TextStores for revisions and signatures.
1293
- a format marker of its own
1294
- an optional 'shared-storage' flag
1295
- an optional 'no-working-trees' flag
1298
This format was introduced in bzr 0.8.
1301
def _get_control_store(self, repo_transport, control_files):
1302
"""Return the control store for this repository."""
1303
return VersionedFileStore(
1306
file_mode=control_files._file_mode,
1307
versionedfile_class=KnitVersionedFile,
1308
versionedfile_kwargs={'factory':KnitPlainFactory()},
1311
def get_format_string(self):
1312
"""See RepositoryFormat.get_format_string()."""
1313
return "Bazaar-NG Knit Repository Format 1"
1315
def get_format_description(self):
1316
"""See RepositoryFormat.get_format_description()."""
1317
return "Knit repository format 1"
1319
def _get_revision_store(self, repo_transport, control_files):
1320
"""See RepositoryFormat._get_revision_store()."""
1321
from bzrlib.store.revision.knit import KnitRevisionStore
1322
versioned_file_store = VersionedFileStore(
1324
file_mode=control_files._file_mode,
1327
versionedfile_class=KnitVersionedFile,
1328
versionedfile_kwargs={'delta':False, 'factory':KnitPlainFactory()},
1331
return KnitRevisionStore(versioned_file_store)
1333
def _get_text_store(self, transport, control_files):
1334
"""See RepositoryFormat._get_text_store()."""
1335
return self._get_versioned_file_store('knits',
1338
versionedfile_class=KnitVersionedFile,
1341
def initialize(self, a_bzrdir, shared=False):
1342
"""Create a knit format 1 repository.
1344
:param a_bzrdir: bzrdir to contain the new repository; must already
1346
:param shared: If true the repository will be initialized as a shared
1349
mutter('creating repository in %s.', a_bzrdir.transport.base)
1350
dirs = ['revision-store', 'knits']
1352
utf8_files = [('format', self.get_format_string())]
1354
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1355
repo_transport = a_bzrdir.get_repository_transport(None)
1356
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1357
control_store = self._get_control_store(repo_transport, control_files)
1358
transaction = bzrlib.transactions.WriteTransaction()
1359
# trigger a write of the inventory store.
1360
control_store.get_weave_or_empty('inventory', transaction)
1361
_revision_store = self._get_revision_store(repo_transport, control_files)
1362
_revision_store.has_revision_id('A', transaction)
1363
_revision_store.get_signature_file(transaction)
1364
return self.open(a_bzrdir=a_bzrdir, _found=True)
1366
def open(self, a_bzrdir, _found=False, _override_transport=None):
1367
"""See RepositoryFormat.open().
1369
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1370
repository at a slightly different url
1371
than normal. I.e. during 'upgrade'.
1374
format = RepositoryFormat.find_format(a_bzrdir)
1375
assert format.__class__ == self.__class__
1376
if _override_transport is not None:
1377
repo_transport = _override_transport
1379
repo_transport = a_bzrdir.get_repository_transport(None)
1380
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1381
text_store = self._get_text_store(repo_transport, control_files)
1382
control_store = self._get_control_store(repo_transport, control_files)
1383
_revision_store = self._get_revision_store(repo_transport, control_files)
1384
return KnitRepository(_format=self,
1386
control_files=control_files,
1387
_revision_store=_revision_store,
1388
control_store=control_store,
1389
text_store=text_store)
1392
# formats which have no format string are not discoverable
1393
# and not independently creatable, so are not registered.
1394
RepositoryFormat.register_format(RepositoryFormat7())
1395
_default_format = RepositoryFormatKnit1()
1396
RepositoryFormat.register_format(_default_format)
1397
RepositoryFormat.set_default_format(_default_format)
1398
_legacy_formats = [RepositoryFormat4(),
1399
RepositoryFormat5(),
1400
RepositoryFormat6()]
1403
class InterRepository(InterObject):
1404
"""This class represents operations taking place between two repositories.
1406
Its instances have methods like copy_content and fetch, and contain
1407
references to the source and target repositories these operations can be
1410
Often we will provide convenience methods on 'repository' which carry out
1411
operations with another repository - they will always forward to
1412
InterRepository.get(other).method_name(parameters).
1416
"""The available optimised InterRepository types."""
1419
def copy_content(self, revision_id=None, basis=None):
1420
"""Make a complete copy of the content in self into destination.
1422
This is a destructive operation! Do not use it on existing
1425
:param revision_id: Only copy the content needed to construct
1426
revision_id and its parents.
1427
:param basis: Copy the needed data preferentially from basis.
1430
self.target.set_make_working_trees(self.source.make_working_trees())
1431
except NotImplementedError:
1433
# grab the basis available data
1434
if basis is not None:
1435
self.target.fetch(basis, revision_id=revision_id)
1436
# but dont bother fetching if we have the needed data now.
1437
if (revision_id not in (None, NULL_REVISION) and
1438
self.target.has_revision(revision_id)):
1440
self.target.fetch(self.source, revision_id=revision_id)
1442
def _double_lock(self, lock_source, lock_target):
1443
"""Take out too locks, rolling back the first if the second throws."""
1448
# we want to ensure that we don't leave source locked by mistake.
1449
# and any error on target should not confuse source.
1450
self.source.unlock()
1454
def fetch(self, revision_id=None, pb=None):
1455
"""Fetch the content required to construct revision_id.
1457
The content is copied from source to target.
1459
:param revision_id: if None all content is copied, if NULL_REVISION no
1461
:param pb: optional progress bar to use for progress reports. If not
1462
provided a default one will be created.
1464
Returns the copied revision count and the failed revisions in a tuple:
1467
from bzrlib.fetch import GenericRepoFetcher
1468
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1469
self.source, self.source._format, self.target, self.target._format)
1470
f = GenericRepoFetcher(to_repository=self.target,
1471
from_repository=self.source,
1472
last_revision=revision_id,
1474
return f.count_copied, f.failed_revisions
1476
def lock_read(self):
1477
"""Take out a logical read lock.
1479
This will lock the source branch and the target branch. The source gets
1480
a read lock and the target a read lock.
1482
self._double_lock(self.source.lock_read, self.target.lock_read)
1484
def lock_write(self):
1485
"""Take out a logical write lock.
1487
This will lock the source branch and the target branch. The source gets
1488
a read lock and the target a write lock.
1490
self._double_lock(self.source.lock_read, self.target.lock_write)
1493
def missing_revision_ids(self, revision_id=None):
1494
"""Return the revision ids that source has that target does not.
1496
These are returned in topological order.
1498
:param revision_id: only return revision ids included by this
1501
# generic, possibly worst case, slow code path.
1502
target_ids = set(self.target.all_revision_ids())
1503
if revision_id is not None:
1504
source_ids = self.source.get_ancestry(revision_id)
1505
assert source_ids[0] == None
1508
source_ids = self.source.all_revision_ids()
1509
result_set = set(source_ids).difference(target_ids)
1510
# this may look like a no-op: its not. It preserves the ordering
1511
# other_ids had while only returning the members from other_ids
1512
# that we've decided we need.
1513
return [rev_id for rev_id in source_ids if rev_id in result_set]
1516
"""Release the locks on source and target."""
1518
self.target.unlock()
1520
self.source.unlock()
1523
class InterWeaveRepo(InterRepository):
1524
"""Optimised code paths between Weave based repositories."""
1526
_matching_repo_format = RepositoryFormat7()
1527
"""Repository format for testing with."""
1530
def is_compatible(source, target):
1531
"""Be compatible with known Weave formats.
1533
We dont test for the stores being of specific types becase that
1534
could lead to confusing results, and there is no need to be
1538
return (isinstance(source._format, (RepositoryFormat5,
1540
RepositoryFormat7)) and
1541
isinstance(target._format, (RepositoryFormat5,
1543
RepositoryFormat7)))
1544
except AttributeError:
1548
def copy_content(self, revision_id=None, basis=None):
1549
"""See InterRepository.copy_content()."""
1550
# weave specific optimised path:
1551
if basis is not None:
1552
# copy the basis in, then fetch remaining data.
1553
basis.copy_content_into(self.target, revision_id)
1554
# the basis copy_content_into could misset this.
1556
self.target.set_make_working_trees(self.source.make_working_trees())
1557
except NotImplementedError:
1559
self.target.fetch(self.source, revision_id=revision_id)
1562
self.target.set_make_working_trees(self.source.make_working_trees())
1563
except NotImplementedError:
1565
# FIXME do not peek!
1566
if self.source.control_files._transport.listable():
1567
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1569
self.target.weave_store.copy_all_ids(
1570
self.source.weave_store,
1572
from_transaction=self.source.get_transaction(),
1573
to_transaction=self.target.get_transaction())
1574
pb.update('copying inventory', 0, 1)
1575
self.target.control_weaves.copy_multi(
1576
self.source.control_weaves, ['inventory'],
1577
from_transaction=self.source.get_transaction(),
1578
to_transaction=self.target.get_transaction())
1579
self.target._revision_store.text_store.copy_all_ids(
1580
self.source._revision_store.text_store,
1585
self.target.fetch(self.source, revision_id=revision_id)
1588
def fetch(self, revision_id=None, pb=None):
1589
"""See InterRepository.fetch()."""
1590
from bzrlib.fetch import GenericRepoFetcher
1591
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1592
self.source, self.source._format, self.target, self.target._format)
1593
f = GenericRepoFetcher(to_repository=self.target,
1594
from_repository=self.source,
1595
last_revision=revision_id,
1597
return f.count_copied, f.failed_revisions
1600
def missing_revision_ids(self, revision_id=None):
1601
"""See InterRepository.missing_revision_ids()."""
1602
# we want all revisions to satisfy revision_id in source.
1603
# but we dont want to stat every file here and there.
1604
# we want then, all revisions other needs to satisfy revision_id
1605
# checked, but not those that we have locally.
1606
# so the first thing is to get a subset of the revisions to
1607
# satisfy revision_id in source, and then eliminate those that
1608
# we do already have.
1609
# this is slow on high latency connection to self, but as as this
1610
# disk format scales terribly for push anyway due to rewriting
1611
# inventory.weave, this is considered acceptable.
1613
if revision_id is not None:
1614
source_ids = self.source.get_ancestry(revision_id)
1615
assert source_ids[0] == None
1618
source_ids = self.source._all_possible_ids()
1619
source_ids_set = set(source_ids)
1620
# source_ids is the worst possible case we may need to pull.
1621
# now we want to filter source_ids against what we actually
1622
# have in target, but dont try to check for existence where we know
1623
# we do not have a revision as that would be pointless.
1624
target_ids = set(self.target._all_possible_ids())
1625
possibly_present_revisions = target_ids.intersection(source_ids_set)
1626
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1627
required_revisions = source_ids_set.difference(actually_present_revisions)
1628
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1629
if revision_id is not None:
1630
# we used get_ancestry to determine source_ids then we are assured all
1631
# revisions referenced are present as they are installed in topological order.
1632
# and the tip revision was validated by get_ancestry.
1633
return required_topo_revisions
1635
# if we just grabbed the possibly available ids, then
1636
# we only have an estimate of whats available and need to validate
1637
# that against the revision records.
1638
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1641
class InterKnitRepo(InterRepository):
1642
"""Optimised code paths between Knit based repositories."""
1644
_matching_repo_format = RepositoryFormatKnit1()
1645
"""Repository format for testing with."""
1648
def is_compatible(source, target):
1649
"""Be compatible with known Knit formats.
1651
We dont test for the stores being of specific types becase that
1652
could lead to confusing results, and there is no need to be
1656
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1657
isinstance(target._format, (RepositoryFormatKnit1)))
1658
except AttributeError:
1662
def fetch(self, revision_id=None, pb=None):
1663
"""See InterRepository.fetch()."""
1664
from bzrlib.fetch import KnitRepoFetcher
1665
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1666
self.source, self.source._format, self.target, self.target._format)
1667
f = KnitRepoFetcher(to_repository=self.target,
1668
from_repository=self.source,
1669
last_revision=revision_id,
1671
return f.count_copied, f.failed_revisions
1674
def missing_revision_ids(self, revision_id=None):
1675
"""See InterRepository.missing_revision_ids()."""
1676
if revision_id is not None:
1677
source_ids = self.source.get_ancestry(revision_id)
1678
assert source_ids[0] == None
1681
source_ids = self.source._all_possible_ids()
1682
source_ids_set = set(source_ids)
1683
# source_ids is the worst possible case we may need to pull.
1684
# now we want to filter source_ids against what we actually
1685
# have in target, but dont try to check for existence where we know
1686
# we do not have a revision as that would be pointless.
1687
target_ids = set(self.target._all_possible_ids())
1688
possibly_present_revisions = target_ids.intersection(source_ids_set)
1689
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1690
required_revisions = source_ids_set.difference(actually_present_revisions)
1691
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1692
if revision_id is not None:
1693
# we used get_ancestry to determine source_ids then we are assured all
1694
# revisions referenced are present as they are installed in topological order.
1695
# and the tip revision was validated by get_ancestry.
1696
return required_topo_revisions
1698
# if we just grabbed the possibly available ids, then
1699
# we only have an estimate of whats available and need to validate
1700
# that against the revision records.
1701
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1703
InterRepository.register_optimiser(InterWeaveRepo)
1704
InterRepository.register_optimiser(InterKnitRepo)
1707
class RepositoryTestProviderAdapter(object):
1708
"""A tool to generate a suite testing multiple repository formats at once.
1710
This is done by copying the test once for each transport and injecting
1711
the transport_server, transport_readonly_server, and bzrdir_format and
1712
repository_format classes into each copy. Each copy is also given a new id()
1713
to make it easy to identify.
1716
def __init__(self, transport_server, transport_readonly_server, formats):
1717
self._transport_server = transport_server
1718
self._transport_readonly_server = transport_readonly_server
1719
self._formats = formats
1721
def adapt(self, test):
1722
result = TestSuite()
1723
for repository_format, bzrdir_format in self._formats:
1724
new_test = deepcopy(test)
1725
new_test.transport_server = self._transport_server
1726
new_test.transport_readonly_server = self._transport_readonly_server
1727
new_test.bzrdir_format = bzrdir_format
1728
new_test.repository_format = repository_format
1729
def make_new_test_id():
1730
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1731
return lambda: new_id
1732
new_test.id = make_new_test_id()
1733
result.addTest(new_test)
1737
class InterRepositoryTestProviderAdapter(object):
1738
"""A tool to generate a suite testing multiple inter repository formats.
1740
This is done by copying the test once for each interrepo provider and injecting
1741
the transport_server, transport_readonly_server, repository_format and
1742
repository_to_format classes into each copy.
1743
Each copy is also given a new id() to make it easy to identify.
1746
def __init__(self, transport_server, transport_readonly_server, formats):
1747
self._transport_server = transport_server
1748
self._transport_readonly_server = transport_readonly_server
1749
self._formats = formats
1751
def adapt(self, test):
1752
result = TestSuite()
1753
for interrepo_class, repository_format, repository_format_to in self._formats:
1754
new_test = deepcopy(test)
1755
new_test.transport_server = self._transport_server
1756
new_test.transport_readonly_server = self._transport_readonly_server
1757
new_test.interrepo_class = interrepo_class
1758
new_test.repository_format = repository_format
1759
new_test.repository_format_to = repository_format_to
1760
def make_new_test_id():
1761
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1762
return lambda: new_id
1763
new_test.id = make_new_test_id()
1764
result.addTest(new_test)
1768
def default_test_list():
1769
"""Generate the default list of interrepo permutations to test."""
1771
# test the default InterRepository between format 6 and the current
1773
# XXX: robertc 20060220 reinstate this when there are two supported
1774
# formats which do not have an optimal code path between them.
1775
result.append((InterRepository,
1776
RepositoryFormat6(),
1777
RepositoryFormatKnit1()))
1778
for optimiser in InterRepository._optimisers:
1779
result.append((optimiser,
1780
optimiser._matching_repo_format,
1781
optimiser._matching_repo_format
1783
# if there are specific combinations we want to use, we can add them
1788
class CopyConverter(object):
1789
"""A repository conversion tool which just performs a copy of the content.
1791
This is slow but quite reliable.
1794
def __init__(self, target_format):
1795
"""Create a CopyConverter.
1797
:param target_format: The format the resulting repository should be.
1799
self.target_format = target_format
1801
def convert(self, repo, pb):
1802
"""Perform the conversion of to_convert, giving feedback via pb.
1804
:param to_convert: The disk object to convert.
1805
:param pb: a progress bar to use for progress information.
1810
# this is only useful with metadir layouts - separated repo content.
1811
# trigger an assertion if not such
1812
repo._format.get_format_string()
1813
self.repo_dir = repo.bzrdir
1814
self.step('Moving repository to repository.backup')
1815
self.repo_dir.transport.move('repository', 'repository.backup')
1816
backup_transport = self.repo_dir.transport.clone('repository.backup')
1817
self.source_repo = repo._format.open(self.repo_dir,
1819
_override_transport=backup_transport)
1820
self.step('Creating new repository')
1821
converted = self.target_format.initialize(self.repo_dir,
1822
self.source_repo.is_shared())
1823
converted.lock_write()
1825
self.step('Copying content into repository.')
1826
self.source_repo.copy_content_into(converted)
1829
self.step('Deleting old repository content.')
1830
self.repo_dir.transport.delete_tree('repository.backup')
1831
self.pb.note('repository converted')
1833
def step(self, message):
1834
"""Update the pb by a step."""
1836
self.pb.update(message, self.count, self.total)
1839
# Copied from xml.sax.saxutils
1840
def _unescape_xml(data):
1841
"""Unescape &, <, and > in a string of data.
1843
data = data.replace("<", "<")
1844
data = data.replace(">", ">")
1845
# must do ampersand last
1846
return data.replace("&", "&")
added
removed
bzrlib/repository.py
