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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 xml.sax.saxutils
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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
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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
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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 _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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object.__init__(self)
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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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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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return self.control_files.is_locked()
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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 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.
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This determines the set of revisions which are involved, and then
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finds all file ids affected by those revisions.
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w = self.get_inventory_weave()
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from_set = set(w.get_ancestry(from_revid))
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to_set = set(w.get_ancestry(to_revid))
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changed = to_set.difference(from_set)
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return self._fileid_involved_by_set(changed)
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def fileid_involved(self, last_revid=None):
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"""Find all file_ids modified in the ancestry of last_revid.
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:param last_revid: If None, last_revision() will be used.
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w = self.get_inventory_weave()
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changed = set(w.versions())
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changed = set(w.get_ancestry(last_revid))
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return self._fileid_involved_by_set(changed)
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def fileid_involved_by_set(self, changes):
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"""Find all file_ids modified by the set of revisions passed in.
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:param changes: A set() of revision ids
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# TODO: jam 20060119 This line does *nothing*, remove it.
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# or better yet, change _fileid_involved_by_set so
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# that it takes the inventory weave, rather than
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# pulling it out by itself.
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return self._fileid_involved_by_set(changes)
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def _fileid_involved_by_set(self, changes):
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"""Find the set of file-ids affected by the set of revisions.
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:param changes: A set() of revision ids.
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:return: A set() of file ids.
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This peaks at the Weave, interpreting each line, looking to
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see if it mentions one of the revisions. And if so, includes
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the file id mentioned.
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This expects both the Weave format, and the serialization
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to have a single line per file/directory, and to have
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fileid="" and revision="" on that line.
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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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w = self.get_inventory_weave()
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# this code needs to read every line in every inventory for the
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# inventories [changes]. Seeing a line twice is ok. Seeing a line
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# not pesent in one of those inventories is unnecessary and not
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# harmful because we are filtering by the revision id marker in the
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# inventory lines to 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(changes):
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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 = xml.sax.saxutils.unescape(line[start:end])
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# check if file_id is already present
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if file_id in file_ids: continue
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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 = xml.sax.saxutils.unescape(line[start:end])
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if revision_id in changes:
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file_ids.add(file_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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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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# FIXME format 4-6 cannot be shared, this is technically faulty.
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return self.control_files._transport.has('shared-storage')
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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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return [None] + w.get_ancestry(revision_id)
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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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# FIXME: split out into a new class/strategy ?
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if isinstance(self._format, (RepositoryFormat4,
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raise NotImplementedError(self.set_make_working_trees)
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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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# FIXME: split out into a new class/strategy ?
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if isinstance(self._format, (RepositoryFormat4,
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return not self.control_files._transport.has('no-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_weave(name, prefixed=False):
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name = safe_unicode(name)
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relpath = a_bzrdir._control_files._escape(name)
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weave_transport = a_bzrdir._control_files._transport.clone(relpath)
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ws = WeaveStore(weave_transport, prefixed=prefixed,
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if a_bzrdir._control_files._transport.should_cache():
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ws.enable_cache = True
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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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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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def get_weave(name, prefixed=False):
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name = safe_unicode(name)
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relpath = self.control_files._escape(name)
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weave_transport = self.control_files._transport.clone(relpath)
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ws = WeaveStore(weave_transport, prefixed=prefixed,
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if self.control_files._transport.should_cache():
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ws.enable_cache = True
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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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class RepositoryFormat(object):
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"""A repository format.
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Formats provide three things:
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* An initialization routine to construct repository data on disk.
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* a format string which is used when the BzrDir supports versioned
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* an open routine which returns a Repository instance.
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Formats are placed in an dict by their format string for reference
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during opening. These should be subclasses of RepositoryFormat
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Once a format is deprecated, just deprecate the initialize and open
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methods on the format class. Do not deprecate the object, as the
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object will be created every system load.
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Common instance attributes:
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_matchingbzrdir - the bzrdir format that the repository format was
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originally written to work with. This can be used if manually
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constructing a bzrdir and repository, or more commonly for test suite
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_default_format = None
711
"""The default format used for new repositories."""
714
"""The known formats."""
717
def find_format(klass, a_bzrdir):
718
"""Return the format for the repository object in a_bzrdir."""
720
transport = a_bzrdir.get_repository_transport(None)
721
format_string = transport.get("format").read()
722
return klass._formats[format_string]
723
except errors.NoSuchFile:
724
raise errors.NoRepositoryPresent(a_bzrdir)
726
raise errors.UnknownFormatError(format_string)
728
def _get_control_store(self, repo_transport, control_files):
729
"""Return the control store for this repository."""
730
raise NotImplementedError(self._get_control_store)
733
def get_default_format(klass):
734
"""Return the current default format."""
735
return klass._default_format
737
def get_format_string(self):
738
"""Return the ASCII format string that identifies this format.
740
Note that in pre format ?? repositories the format string is
741
not permitted nor written to disk.
743
raise NotImplementedError(self.get_format_string)
745
def _get_revision_store(self, repo_transport, control_files):
746
"""Return the revision store object for this a_bzrdir."""
747
raise NotImplementedError(self._get_revision_store)
749
def _get_text_rev_store(self,
756
"""Common logic for getting a revision store for a repository.
758
see self._get_revision_store for the subclass-overridable method to
759
get the store for a repository.
761
from bzrlib.store.revision.text import TextRevisionStore
762
dir_mode = control_files._dir_mode
763
file_mode = control_files._file_mode
764
text_store =TextStore(transport.clone(name),
766
compressed=compressed,
769
_revision_store = TextRevisionStore(text_store, serializer)
770
return _revision_store
772
def _get_versioned_file_store(self,
777
versionedfile_class=WeaveFile):
778
weave_transport = control_files._transport.clone(name)
779
dir_mode = control_files._dir_mode
780
file_mode = control_files._file_mode
781
return VersionedFileStore(weave_transport, prefixed=prefixed,
784
versionedfile_class=versionedfile_class)
786
def initialize(self, a_bzrdir, shared=False):
787
"""Initialize a repository of this format in a_bzrdir.
789
:param a_bzrdir: The bzrdir to put the new repository in it.
790
:param shared: The repository should be initialized as a sharable one.
792
This may raise UninitializableFormat if shared repository are not
793
compatible the a_bzrdir.
796
def is_supported(self):
797
"""Is this format supported?
799
Supported formats must be initializable and openable.
800
Unsupported formats may not support initialization or committing or
801
some other features depending on the reason for not being supported.
805
def open(self, a_bzrdir, _found=False):
806
"""Return an instance of this format for the bzrdir a_bzrdir.
808
_found is a private parameter, do not use it.
810
raise NotImplementedError(self.open)
813
def register_format(klass, format):
814
klass._formats[format.get_format_string()] = format
817
def set_default_format(klass, format):
818
klass._default_format = format
821
def unregister_format(klass, format):
822
assert klass._formats[format.get_format_string()] is format
823
del klass._formats[format.get_format_string()]
826
class PreSplitOutRepositoryFormat(RepositoryFormat):
827
"""Base class for the pre split out repository formats."""
829
def initialize(self, a_bzrdir, shared=False, _internal=False):
830
"""Create a weave repository.
832
TODO: when creating split out bzr branch formats, move this to a common
833
base for Format5, Format6. or something like that.
835
from bzrlib.weavefile import write_weave_v5
836
from bzrlib.weave import Weave
839
raise errors.IncompatibleFormat(self, a_bzrdir._format)
842
# always initialized when the bzrdir is.
843
return self.open(a_bzrdir, _found=True)
845
# Create an empty weave
847
bzrlib.weavefile.write_weave_v5(Weave(), sio)
848
empty_weave = sio.getvalue()
850
mutter('creating repository in %s.', a_bzrdir.transport.base)
851
dirs = ['revision-store', 'weaves']
852
files = [('inventory.weave', StringIO(empty_weave)),
855
# FIXME: RBC 20060125 dont peek under the covers
856
# NB: no need to escape relative paths that are url safe.
857
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
859
control_files.create_lock()
860
control_files.lock_write()
861
control_files._transport.mkdir_multi(dirs,
862
mode=control_files._dir_mode)
864
for file, content in files:
865
control_files.put(file, content)
867
control_files.unlock()
868
return self.open(a_bzrdir, _found=True)
870
def _get_control_store(self, repo_transport, control_files):
871
"""Return the control store for this repository."""
872
return self._get_versioned_file_store('',
877
def _get_text_store(self, transport, control_files):
878
"""Get a store for file texts for this format."""
879
raise NotImplementedError(self._get_text_store)
881
def open(self, a_bzrdir, _found=False):
882
"""See RepositoryFormat.open()."""
884
# we are being called directly and must probe.
885
raise NotImplementedError
887
repo_transport = a_bzrdir.get_repository_transport(None)
888
control_files = a_bzrdir._control_files
889
text_store = self._get_text_store(repo_transport, control_files)
890
control_store = self._get_control_store(repo_transport, control_files)
891
_revision_store = self._get_revision_store(repo_transport, control_files)
892
return AllInOneRepository(_format=self,
894
_revision_store=_revision_store,
895
control_store=control_store,
896
text_store=text_store)
899
class RepositoryFormat4(PreSplitOutRepositoryFormat):
900
"""Bzr repository format 4.
902
This repository format has:
904
- TextStores for texts, inventories,revisions.
906
This format is deprecated: it indexes texts using a text id which is
907
removed in format 5; initializationa and write support for this format
912
super(RepositoryFormat4, self).__init__()
913
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
915
def initialize(self, url, shared=False, _internal=False):
916
"""Format 4 branches cannot be created."""
917
raise errors.UninitializableFormat(self)
919
def is_supported(self):
920
"""Format 4 is not supported.
922
It is not supported because the model changed from 4 to 5 and the
923
conversion logic is expensive - so doing it on the fly was not
928
def _get_control_store(self, repo_transport, control_files):
929
"""Format 4 repositories have no formal control store at this point.
931
This will cause any control-file-needing apis to fail - this is desired.
935
def _get_revision_store(self, repo_transport, control_files):
936
"""See RepositoryFormat._get_revision_store()."""
937
from bzrlib.xml4 import serializer_v4
938
return self._get_text_rev_store(repo_transport,
941
serializer=serializer_v4)
943
def _get_text_store(self, transport, control_files):
944
"""See RepositoryFormat._get_text_store()."""
947
class RepositoryFormat5(PreSplitOutRepositoryFormat):
948
"""Bzr control format 5.
950
This repository format has:
951
- weaves for file texts and inventory
953
- TextStores for revisions and signatures.
957
super(RepositoryFormat5, self).__init__()
958
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
960
def _get_revision_store(self, repo_transport, control_files):
961
"""See RepositoryFormat._get_revision_store()."""
962
"""Return the revision store object for this a_bzrdir."""
963
return self._get_text_rev_store(repo_transport,
968
def _get_text_store(self, transport, control_files):
969
"""See RepositoryFormat._get_text_store()."""
970
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
973
class RepositoryFormat6(PreSplitOutRepositoryFormat):
974
"""Bzr control format 6.
976
This repository format has:
977
- weaves for file texts and inventory
978
- hash subdirectory based stores.
979
- TextStores for revisions and signatures.
983
super(RepositoryFormat6, self).__init__()
984
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
986
def _get_revision_store(self, repo_transport, control_files):
987
"""See RepositoryFormat._get_revision_store()."""
988
return self._get_text_rev_store(repo_transport,
994
def _get_text_store(self, transport, control_files):
995
"""See RepositoryFormat._get_text_store()."""
996
return self._get_versioned_file_store('weaves', transport, control_files)
999
class MetaDirRepositoryFormat(RepositoryFormat):
1000
"""Common base class for the new repositories using the metadir layour."""
1003
super(MetaDirRepositoryFormat, self).__init__()
1004
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1006
def _create_control_files(self, a_bzrdir):
1007
"""Create the required files and the initial control_files object."""
1008
# FIXME: RBC 20060125 dont peek under the covers
1009
# NB: no need to escape relative paths that are url safe.
1010
repository_transport = a_bzrdir.get_repository_transport(self)
1011
control_files = LockableFiles(repository_transport, 'lock', LockDir)
1012
control_files.create_lock()
1013
return control_files
1015
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1016
"""Upload the initial blank content."""
1017
control_files = self._create_control_files(a_bzrdir)
1018
control_files.lock_write()
1020
control_files._transport.mkdir_multi(dirs,
1021
mode=control_files._dir_mode)
1022
for file, content in files:
1023
control_files.put(file, content)
1024
for file, content in utf8_files:
1025
control_files.put_utf8(file, content)
1027
control_files.put_utf8('shared-storage', '')
1029
control_files.unlock()
1032
class RepositoryFormat7(MetaDirRepositoryFormat):
1033
"""Bzr repository 7.
1035
This repository format has:
1036
- weaves for file texts and inventory
1037
- hash subdirectory based stores.
1038
- TextStores for revisions and signatures.
1039
- a format marker of its own
1040
- an optional 'shared-storage' flag
1041
- an optional 'no-working-trees' flag
1044
def _get_control_store(self, repo_transport, control_files):
1045
"""Return the control store for this repository."""
1046
return self._get_versioned_file_store('',
1051
def get_format_string(self):
1052
"""See RepositoryFormat.get_format_string()."""
1053
return "Bazaar-NG Repository format 7"
1055
def _get_revision_store(self, repo_transport, control_files):
1056
"""See RepositoryFormat._get_revision_store()."""
1057
return self._get_text_rev_store(repo_transport,
1064
def _get_text_store(self, transport, control_files):
1065
"""See RepositoryFormat._get_text_store()."""
1066
return self._get_versioned_file_store('weaves',
1070
def initialize(self, a_bzrdir, shared=False):
1071
"""Create a weave repository.
1073
:param shared: If true the repository will be initialized as a shared
1076
from bzrlib.weavefile import write_weave_v5
1077
from bzrlib.weave import Weave
1079
# Create an empty weave
1081
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1082
empty_weave = sio.getvalue()
1084
mutter('creating repository in %s.', a_bzrdir.transport.base)
1085
dirs = ['revision-store', 'weaves']
1086
files = [('inventory.weave', StringIO(empty_weave)),
1088
utf8_files = [('format', self.get_format_string())]
1090
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1091
return self.open(a_bzrdir=a_bzrdir, _found=True)
1093
def open(self, a_bzrdir, _found=False, _override_transport=None):
1094
"""See RepositoryFormat.open().
1096
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1097
repository at a slightly different url
1098
than normal. I.e. during 'upgrade'.
1101
format = RepositoryFormat.find_format(a_bzrdir)
1102
assert format.__class__ == self.__class__
1103
if _override_transport is not None:
1104
repo_transport = _override_transport
1106
repo_transport = a_bzrdir.get_repository_transport(None)
1107
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1108
text_store = self._get_text_store(repo_transport, control_files)
1109
control_store = self._get_control_store(repo_transport, control_files)
1110
_revision_store = self._get_revision_store(repo_transport, control_files)
1111
return MetaDirRepository(_format=self,
1113
control_files=control_files,
1114
_revision_store=_revision_store,
1115
control_store=control_store,
1116
text_store=text_store)
1119
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1120
"""Bzr repository knit format 1.
1122
This repository format has:
1123
- knits for file texts and inventory
1124
- hash subdirectory based stores.
1125
- knits for revisions and signatures
1126
- TextStores for revisions and signatures.
1127
- a format marker of its own
1128
- an optional 'shared-storage' flag
1129
- an optional 'no-working-trees' flag
1133
def _get_control_store(self, repo_transport, control_files):
1134
"""Return the control store for this repository."""
1135
return self._get_versioned_file_store('',
1139
versionedfile_class=KnitVersionedFile)
1141
def get_format_string(self):
1142
"""See RepositoryFormat.get_format_string()."""
1143
return "Bazaar-NG Knit Repository Format 1"
1145
def _get_revision_store(self, repo_transport, control_files):
1146
"""See RepositoryFormat._get_revision_store()."""
1147
from bzrlib.store.revision.knit import KnitRevisionStore
1148
versioned_file_store = VersionedFileStore(
1150
file_mode = control_files._file_mode,
1153
versionedfile_class=KnitVersionedFile)
1154
return KnitRevisionStore(versioned_file_store)
1156
def _get_text_store(self, transport, control_files):
1157
"""See RepositoryFormat._get_text_store()."""
1158
return self._get_versioned_file_store('knits',
1161
versionedfile_class=KnitVersionedFile)
1163
def initialize(self, a_bzrdir, shared=False):
1164
"""Create a knit format 1 repository.
1166
:param shared: If true the repository will be initialized as a shared
1168
XXX NOTE that this current uses a Weave for testing and will become
1169
A Knit in due course.
1171
from bzrlib.weavefile import write_weave_v5
1172
from bzrlib.weave import Weave
1174
# Create an empty weave
1176
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1177
empty_weave = sio.getvalue()
1179
mutter('creating repository in %s.', a_bzrdir.transport.base)
1180
dirs = ['revision-store', 'knits', 'control']
1181
files = [('control/inventory.weave', StringIO(empty_weave)),
1183
utf8_files = [('format', self.get_format_string())]
1185
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1186
repo_transport = a_bzrdir.get_repository_transport(None)
1187
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1188
control_store = self._get_control_store(repo_transport, control_files)
1189
transaction = bzrlib.transactions.PassThroughTransaction()
1190
# trigger a write of the inventory store.
1191
control_store.get_weave_or_empty('inventory', transaction)
1192
_revision_store = self._get_revision_store(repo_transport, control_files)
1193
_revision_store.has_revision_id('A', transaction)
1194
_revision_store.get_signature_file(transaction)
1195
return self.open(a_bzrdir=a_bzrdir, _found=True)
1197
def open(self, a_bzrdir, _found=False, _override_transport=None):
1198
"""See RepositoryFormat.open().
1200
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1201
repository at a slightly different url
1202
than normal. I.e. during 'upgrade'.
1205
format = RepositoryFormat.find_format(a_bzrdir)
1206
assert format.__class__ == self.__class__
1207
if _override_transport is not None:
1208
repo_transport = _override_transport
1210
repo_transport = a_bzrdir.get_repository_transport(None)
1211
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1212
text_store = self._get_text_store(repo_transport, control_files)
1213
control_store = self._get_control_store(repo_transport, control_files)
1214
_revision_store = self._get_revision_store(repo_transport, control_files)
1215
return KnitRepository(_format=self,
1217
control_files=control_files,
1218
_revision_store=_revision_store,
1219
control_store=control_store,
1220
text_store=text_store)
1223
# formats which have no format string are not discoverable
1224
# and not independently creatable, so are not registered.
1225
_default_format = RepositoryFormat7()
1226
RepositoryFormat.register_format(_default_format)
1227
RepositoryFormat.register_format(RepositoryFormatKnit1())
1228
RepositoryFormat.set_default_format(_default_format)
1229
_legacy_formats = [RepositoryFormat4(),
1230
RepositoryFormat5(),
1231
RepositoryFormat6()]
1234
class InterRepository(InterObject):
1235
"""This class represents operations taking place between two repositories.
1237
Its instances have methods like copy_content and fetch, and contain
1238
references to the source and target repositories these operations can be
1241
Often we will provide convenience methods on 'repository' which carry out
1242
operations with another repository - they will always forward to
1243
InterRepository.get(other).method_name(parameters).
1247
"""The available optimised InterRepository types."""
1250
def copy_content(self, revision_id=None, basis=None):
1251
"""Make a complete copy of the content in self into destination.
1253
This is a destructive operation! Do not use it on existing
1256
:param revision_id: Only copy the content needed to construct
1257
revision_id and its parents.
1258
:param basis: Copy the needed data preferentially from basis.
1261
self.target.set_make_working_trees(self.source.make_working_trees())
1262
except NotImplementedError:
1264
# grab the basis available data
1265
if basis is not None:
1266
self.target.fetch(basis, revision_id=revision_id)
1267
# but dont bother fetching if we have the needed data now.
1268
if (revision_id not in (None, NULL_REVISION) and
1269
self.target.has_revision(revision_id)):
1271
self.target.fetch(self.source, revision_id=revision_id)
1273
def _double_lock(self, lock_source, lock_target):
1274
"""Take out too locks, rolling back the first if the second throws."""
1279
# we want to ensure that we don't leave source locked by mistake.
1280
# and any error on target should not confuse source.
1281
self.source.unlock()
1285
def fetch(self, revision_id=None, pb=None):
1286
"""Fetch the content required to construct revision_id.
1288
The content is copied from source to target.
1290
:param revision_id: if None all content is copied, if NULL_REVISION no
1292
:param pb: optional progress bar to use for progress reports. If not
1293
provided a default one will be created.
1295
Returns the copied revision count and the failed revisions in a tuple:
1298
from bzrlib.fetch import GenericRepoFetcher
1299
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1300
self.source, self.source._format, self.target, self.target._format)
1301
f = GenericRepoFetcher(to_repository=self.target,
1302
from_repository=self.source,
1303
last_revision=revision_id,
1305
return f.count_copied, f.failed_revisions
1307
def lock_read(self):
1308
"""Take out a logical read lock.
1310
This will lock the source branch and the target branch. The source gets
1311
a read lock and the target a read lock.
1313
self._double_lock(self.source.lock_read, self.target.lock_read)
1315
def lock_write(self):
1316
"""Take out a logical write lock.
1318
This will lock the source branch and the target branch. The source gets
1319
a read lock and the target a write lock.
1321
self._double_lock(self.source.lock_read, self.target.lock_write)
1324
def missing_revision_ids(self, revision_id=None):
1325
"""Return the revision ids that source has that target does not.
1327
These are returned in topological order.
1329
:param revision_id: only return revision ids included by this
1332
# generic, possibly worst case, slow code path.
1333
target_ids = set(self.target.all_revision_ids())
1334
if revision_id is not None:
1335
source_ids = self.source.get_ancestry(revision_id)
1336
assert source_ids.pop(0) == None
1338
source_ids = self.source.all_revision_ids()
1339
result_set = set(source_ids).difference(target_ids)
1340
# this may look like a no-op: its not. It preserves the ordering
1341
# other_ids had while only returning the members from other_ids
1342
# that we've decided we need.
1343
return [rev_id for rev_id in source_ids if rev_id in result_set]
1346
"""Release the locks on source and target."""
1348
self.target.unlock()
1350
self.source.unlock()
1353
class InterWeaveRepo(InterRepository):
1354
"""Optimised code paths between Weave based repositories."""
1356
_matching_repo_format = _default_format
1357
"""Repository format for testing with."""
1360
def is_compatible(source, target):
1361
"""Be compatible with known Weave formats.
1363
We dont test for the stores being of specific types becase that
1364
could lead to confusing results, and there is no need to be
1368
return (isinstance(source._format, (RepositoryFormat5,
1370
RepositoryFormat7)) and
1371
isinstance(target._format, (RepositoryFormat5,
1373
RepositoryFormat7)))
1374
except AttributeError:
1378
def copy_content(self, revision_id=None, basis=None):
1379
"""See InterRepository.copy_content()."""
1380
# weave specific optimised path:
1381
if basis is not None:
1382
# copy the basis in, then fetch remaining data.
1383
basis.copy_content_into(self.target, revision_id)
1384
# the basis copy_content_into could misset this.
1386
self.target.set_make_working_trees(self.source.make_working_trees())
1387
except NotImplementedError:
1389
self.target.fetch(self.source, revision_id=revision_id)
1392
self.target.set_make_working_trees(self.source.make_working_trees())
1393
except NotImplementedError:
1395
# FIXME do not peek!
1396
if self.source.control_files._transport.listable():
1397
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1399
self.target.weave_store.copy_all_ids(
1400
self.source.weave_store,
1402
from_transaction=self.source.get_transaction(),
1403
to_transaction=self.target.get_transaction())
1404
pb.update('copying inventory', 0, 1)
1405
self.target.control_weaves.copy_multi(
1406
self.source.control_weaves, ['inventory'],
1407
from_transaction=self.source.get_transaction(),
1408
to_transaction=self.target.get_transaction())
1409
self.target._revision_store.text_store.copy_all_ids(
1410
self.source._revision_store.text_store,
1415
self.target.fetch(self.source, revision_id=revision_id)
1418
def fetch(self, revision_id=None, pb=None):
1419
"""See InterRepository.fetch()."""
1420
from bzrlib.fetch import GenericRepoFetcher
1421
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1422
self.source, self.source._format, self.target, self.target._format)
1423
f = GenericRepoFetcher(to_repository=self.target,
1424
from_repository=self.source,
1425
last_revision=revision_id,
1427
return f.count_copied, f.failed_revisions
1430
def missing_revision_ids(self, revision_id=None):
1431
"""See InterRepository.missing_revision_ids()."""
1432
# we want all revisions to satisfy revision_id in source.
1433
# but we dont want to stat every file here and there.
1434
# we want then, all revisions other needs to satisfy revision_id
1435
# checked, but not those that we have locally.
1436
# so the first thing is to get a subset of the revisions to
1437
# satisfy revision_id in source, and then eliminate those that
1438
# we do already have.
1439
# this is slow on high latency connection to self, but as as this
1440
# disk format scales terribly for push anyway due to rewriting
1441
# inventory.weave, this is considered acceptable.
1443
if revision_id is not None:
1444
source_ids = self.source.get_ancestry(revision_id)
1445
assert source_ids.pop(0) == None
1447
source_ids = self.source._all_possible_ids()
1448
source_ids_set = set(source_ids)
1449
# source_ids is the worst possible case we may need to pull.
1450
# now we want to filter source_ids against what we actually
1451
# have in target, but dont try to check for existence where we know
1452
# we do not have a revision as that would be pointless.
1453
target_ids = set(self.target._all_possible_ids())
1454
possibly_present_revisions = target_ids.intersection(source_ids_set)
1455
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1456
required_revisions = source_ids_set.difference(actually_present_revisions)
1457
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1458
if revision_id is not None:
1459
# we used get_ancestry to determine source_ids then we are assured all
1460
# revisions referenced are present as they are installed in topological order.
1461
# and the tip revision was validated by get_ancestry.
1462
return required_topo_revisions
1464
# if we just grabbed the possibly available ids, then
1465
# we only have an estimate of whats available and need to validate
1466
# that against the revision records.
1467
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1470
class InterKnitRepo(InterRepository):
1471
"""Optimised code paths between Knit based repositories."""
1473
_matching_repo_format = RepositoryFormatKnit1()
1474
"""Repository format for testing with."""
1477
def is_compatible(source, target):
1478
"""Be compatible with known Knit formats.
1480
We dont test for the stores being of specific types becase that
1481
could lead to confusing results, and there is no need to be
1485
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1486
isinstance(target._format, (RepositoryFormatKnit1)))
1487
except AttributeError:
1491
def fetch(self, revision_id=None, pb=None):
1492
"""See InterRepository.fetch()."""
1493
from bzrlib.fetch import KnitRepoFetcher
1494
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1495
self.source, self.source._format, self.target, self.target._format)
1496
f = KnitRepoFetcher(to_repository=self.target,
1497
from_repository=self.source,
1498
last_revision=revision_id,
1500
return f.count_copied, f.failed_revisions
1503
def missing_revision_ids(self, revision_id=None):
1504
"""See InterRepository.missing_revision_ids()."""
1505
if revision_id is not None:
1506
source_ids = self.source.get_ancestry(revision_id)
1507
assert source_ids.pop(0) == None
1509
source_ids = self.source._all_possible_ids()
1510
source_ids_set = set(source_ids)
1511
# source_ids is the worst possible case we may need to pull.
1512
# now we want to filter source_ids against what we actually
1513
# have in target, but dont try to check for existence where we know
1514
# we do not have a revision as that would be pointless.
1515
target_ids = set(self.target._all_possible_ids())
1516
possibly_present_revisions = target_ids.intersection(source_ids_set)
1517
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1518
required_revisions = source_ids_set.difference(actually_present_revisions)
1519
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1520
if revision_id is not None:
1521
# we used get_ancestry to determine source_ids then we are assured all
1522
# revisions referenced are present as they are installed in topological order.
1523
# and the tip revision was validated by get_ancestry.
1524
return required_topo_revisions
1526
# if we just grabbed the possibly available ids, then
1527
# we only have an estimate of whats available and need to validate
1528
# that against the revision records.
1529
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1531
InterRepository.register_optimiser(InterWeaveRepo)
1532
InterRepository.register_optimiser(InterKnitRepo)
1535
class RepositoryTestProviderAdapter(object):
1536
"""A tool to generate a suite testing multiple repository formats at once.
1538
This is done by copying the test once for each transport and injecting
1539
the transport_server, transport_readonly_server, and bzrdir_format and
1540
repository_format classes into each copy. Each copy is also given a new id()
1541
to make it easy to identify.
1544
def __init__(self, transport_server, transport_readonly_server, formats):
1545
self._transport_server = transport_server
1546
self._transport_readonly_server = transport_readonly_server
1547
self._formats = formats
1549
def adapt(self, test):
1550
result = TestSuite()
1551
for repository_format, bzrdir_format in self._formats:
1552
new_test = deepcopy(test)
1553
new_test.transport_server = self._transport_server
1554
new_test.transport_readonly_server = self._transport_readonly_server
1555
new_test.bzrdir_format = bzrdir_format
1556
new_test.repository_format = repository_format
1557
def make_new_test_id():
1558
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1559
return lambda: new_id
1560
new_test.id = make_new_test_id()
1561
result.addTest(new_test)
1565
class InterRepositoryTestProviderAdapter(object):
1566
"""A tool to generate a suite testing multiple inter repository formats.
1568
This is done by copying the test once for each interrepo provider and injecting
1569
the transport_server, transport_readonly_server, repository_format and
1570
repository_to_format classes into each copy.
1571
Each copy is also given a new id() to make it easy to identify.
1574
def __init__(self, transport_server, transport_readonly_server, formats):
1575
self._transport_server = transport_server
1576
self._transport_readonly_server = transport_readonly_server
1577
self._formats = formats
1579
def adapt(self, test):
1580
result = TestSuite()
1581
for interrepo_class, repository_format, repository_format_to in self._formats:
1582
new_test = deepcopy(test)
1583
new_test.transport_server = self._transport_server
1584
new_test.transport_readonly_server = self._transport_readonly_server
1585
new_test.interrepo_class = interrepo_class
1586
new_test.repository_format = repository_format
1587
new_test.repository_format_to = repository_format_to
1588
def make_new_test_id():
1589
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1590
return lambda: new_id
1591
new_test.id = make_new_test_id()
1592
result.addTest(new_test)
1596
def default_test_list():
1597
"""Generate the default list of interrepo permutations to test."""
1599
# test the default InterRepository between format 6 and the current
1601
# XXX: robertc 20060220 reinstate this when there are two supported
1602
# formats which do not have an optimal code path between them.
1603
result.append((InterRepository,
1604
RepositoryFormat6(),
1605
RepositoryFormatKnit1()))
1606
for optimiser in InterRepository._optimisers:
1607
result.append((optimiser,
1608
optimiser._matching_repo_format,
1609
optimiser._matching_repo_format
1611
# if there are specific combinations we want to use, we can add them
1616
class CopyConverter(object):
1617
"""A repository conversion tool which just performs a copy of the content.
1619
This is slow but quite reliable.
1622
def __init__(self, target_format):
1623
"""Create a CopyConverter.
1625
:param target_format: The format the resulting repository should be.
1627
self.target_format = target_format
1629
def convert(self, repo, pb):
1630
"""Perform the conversion of to_convert, giving feedback via pb.
1632
:param to_convert: The disk object to convert.
1633
:param pb: a progress bar to use for progress information.
1638
# this is only useful with metadir layouts - separated repo content.
1639
# trigger an assertion if not such
1640
repo._format.get_format_string()
1641
self.repo_dir = repo.bzrdir
1642
self.step('Moving repository to repository.backup')
1643
self.repo_dir.transport.move('repository', 'repository.backup')
1644
backup_transport = self.repo_dir.transport.clone('repository.backup')
1645
self.source_repo = repo._format.open(self.repo_dir,
1647
_override_transport=backup_transport)
1648
self.step('Creating new repository')
1649
converted = self.target_format.initialize(self.repo_dir,
1650
self.source_repo.is_shared())
1651
converted.lock_write()
1653
self.step('Copying content into repository.')
1654
self.source_repo.copy_content_into(converted)
1657
self.step('Deleting old repository content.')
1658
self.repo_dir.transport.delete_tree('repository.backup')
1659
self.pb.note('repository converted')
1661
def step(self, message):
1662
"""Update the pb by a step."""
1664
self.pb.update(message, self.count, self.total)