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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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"""Reconcile this repository."""
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from bzrlib.reconcile import RepoReconciler
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reconciler = RepoReconciler(self)
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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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# 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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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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vf = self._revision_store.get_revision_file(self.get_transaction())
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return [None] + vf.get_ancestry(revision_id)
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except errors.RevisionNotPresent:
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raise errors.NoSuchRevision(self, revision_id)
709
def get_revision_graph_with_ghosts(self, revision_ids=None):
710
"""Return a graph of the revisions with ghosts marked as applicable.
712
:param revision_ids: an iterable of revisions to graph or None for all.
713
:return: a Graph object with the graph reachable from revision_ids.
716
vf = self._revision_store.get_revision_file(self.get_transaction())
717
versions = vf.versions()
719
pending = set(self.all_revision_ids())
722
pending = set(revision_ids)
723
required = set(revision_ids)
726
revision_id = pending.pop()
727
if not revision_id in versions:
728
if revision_id in required:
729
raise errors.NoSuchRevision(self, revision_id)
731
result.add_ghost(revision_id)
733
parent_ids = vf.get_parents_with_ghosts(revision_id)
734
for parent_id in parent_ids:
735
# is this queued or done ?
736
if (parent_id not in pending and
737
parent_id not in done):
739
pending.add(parent_id)
740
result.add_node(revision_id, parent_ids)
746
"""Reconcile this repository."""
747
from bzrlib.reconcile import KnitReconciler
748
reconciler = KnitReconciler(self)
749
reconciler.reconcile()
753
class RepositoryFormat(object):
754
"""A repository format.
756
Formats provide three things:
757
* An initialization routine to construct repository data on disk.
758
* a format string which is used when the BzrDir supports versioned
760
* an open routine which returns a Repository instance.
762
Formats are placed in an dict by their format string for reference
763
during opening. These should be subclasses of RepositoryFormat
766
Once a format is deprecated, just deprecate the initialize and open
767
methods on the format class. Do not deprecate the object, as the
768
object will be created every system load.
770
Common instance attributes:
771
_matchingbzrdir - the bzrdir format that the repository format was
772
originally written to work with. This can be used if manually
773
constructing a bzrdir and repository, or more commonly for test suite
777
_default_format = None
778
"""The default format used for new repositories."""
781
"""The known formats."""
784
def find_format(klass, a_bzrdir):
785
"""Return the format for the repository object in a_bzrdir."""
787
transport = a_bzrdir.get_repository_transport(None)
788
format_string = transport.get("format").read()
789
return klass._formats[format_string]
790
except errors.NoSuchFile:
791
raise errors.NoRepositoryPresent(a_bzrdir)
793
raise errors.UnknownFormatError(format_string)
795
def _get_control_store(self, repo_transport, control_files):
796
"""Return the control store for this repository."""
797
raise NotImplementedError(self._get_control_store)
800
def get_default_format(klass):
801
"""Return the current default format."""
802
return klass._default_format
804
def get_format_string(self):
805
"""Return the ASCII format string that identifies this format.
807
Note that in pre format ?? repositories the format string is
808
not permitted nor written to disk.
810
raise NotImplementedError(self.get_format_string)
812
def _get_revision_store(self, repo_transport, control_files):
813
"""Return the revision store object for this a_bzrdir."""
814
raise NotImplementedError(self._get_revision_store)
816
def _get_text_rev_store(self,
823
"""Common logic for getting a revision store for a repository.
825
see self._get_revision_store for the subclass-overridable method to
826
get the store for a repository.
828
from bzrlib.store.revision.text import TextRevisionStore
829
dir_mode = control_files._dir_mode
830
file_mode = control_files._file_mode
831
text_store =TextStore(transport.clone(name),
833
compressed=compressed,
836
_revision_store = TextRevisionStore(text_store, serializer)
837
return _revision_store
839
def _get_versioned_file_store(self,
844
versionedfile_class=WeaveFile):
845
weave_transport = control_files._transport.clone(name)
846
dir_mode = control_files._dir_mode
847
file_mode = control_files._file_mode
848
return VersionedFileStore(weave_transport, prefixed=prefixed,
851
versionedfile_class=versionedfile_class)
853
def initialize(self, a_bzrdir, shared=False):
854
"""Initialize a repository of this format in a_bzrdir.
856
:param a_bzrdir: The bzrdir to put the new repository in it.
857
:param shared: The repository should be initialized as a sharable one.
859
This may raise UninitializableFormat if shared repository are not
860
compatible the a_bzrdir.
863
def is_supported(self):
864
"""Is this format supported?
866
Supported formats must be initializable and openable.
867
Unsupported formats may not support initialization or committing or
868
some other features depending on the reason for not being supported.
872
def open(self, a_bzrdir, _found=False):
873
"""Return an instance of this format for the bzrdir a_bzrdir.
875
_found is a private parameter, do not use it.
877
raise NotImplementedError(self.open)
880
def register_format(klass, format):
881
klass._formats[format.get_format_string()] = format
884
def set_default_format(klass, format):
885
klass._default_format = format
888
def unregister_format(klass, format):
889
assert klass._formats[format.get_format_string()] is format
890
del klass._formats[format.get_format_string()]
893
class PreSplitOutRepositoryFormat(RepositoryFormat):
894
"""Base class for the pre split out repository formats."""
896
def initialize(self, a_bzrdir, shared=False, _internal=False):
897
"""Create a weave repository.
899
TODO: when creating split out bzr branch formats, move this to a common
900
base for Format5, Format6. or something like that.
902
from bzrlib.weavefile import write_weave_v5
903
from bzrlib.weave import Weave
906
raise errors.IncompatibleFormat(self, a_bzrdir._format)
909
# always initialized when the bzrdir is.
910
return self.open(a_bzrdir, _found=True)
912
# Create an empty weave
914
bzrlib.weavefile.write_weave_v5(Weave(), sio)
915
empty_weave = sio.getvalue()
917
mutter('creating repository in %s.', a_bzrdir.transport.base)
918
dirs = ['revision-store', 'weaves']
919
files = [('inventory.weave', StringIO(empty_weave)),
922
# FIXME: RBC 20060125 dont peek under the covers
923
# NB: no need to escape relative paths that are url safe.
924
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
926
control_files.create_lock()
927
control_files.lock_write()
928
control_files._transport.mkdir_multi(dirs,
929
mode=control_files._dir_mode)
931
for file, content in files:
932
control_files.put(file, content)
934
control_files.unlock()
935
return self.open(a_bzrdir, _found=True)
937
def _get_control_store(self, repo_transport, control_files):
938
"""Return the control store for this repository."""
939
return self._get_versioned_file_store('',
944
def _get_text_store(self, transport, control_files):
945
"""Get a store for file texts for this format."""
946
raise NotImplementedError(self._get_text_store)
948
def open(self, a_bzrdir, _found=False):
949
"""See RepositoryFormat.open()."""
951
# we are being called directly and must probe.
952
raise NotImplementedError
954
repo_transport = a_bzrdir.get_repository_transport(None)
955
control_files = a_bzrdir._control_files
956
text_store = self._get_text_store(repo_transport, control_files)
957
control_store = self._get_control_store(repo_transport, control_files)
958
_revision_store = self._get_revision_store(repo_transport, control_files)
959
return AllInOneRepository(_format=self,
961
_revision_store=_revision_store,
962
control_store=control_store,
963
text_store=text_store)
966
class RepositoryFormat4(PreSplitOutRepositoryFormat):
967
"""Bzr repository format 4.
969
This repository format has:
971
- TextStores for texts, inventories,revisions.
973
This format is deprecated: it indexes texts using a text id which is
974
removed in format 5; initializationa and write support for this format
979
super(RepositoryFormat4, self).__init__()
980
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
982
def initialize(self, url, shared=False, _internal=False):
983
"""Format 4 branches cannot be created."""
984
raise errors.UninitializableFormat(self)
986
def is_supported(self):
987
"""Format 4 is not supported.
989
It is not supported because the model changed from 4 to 5 and the
990
conversion logic is expensive - so doing it on the fly was not
995
def _get_control_store(self, repo_transport, control_files):
996
"""Format 4 repositories have no formal control store at this point.
998
This will cause any control-file-needing apis to fail - this is desired.
1002
def _get_revision_store(self, repo_transport, control_files):
1003
"""See RepositoryFormat._get_revision_store()."""
1004
from bzrlib.xml4 import serializer_v4
1005
return self._get_text_rev_store(repo_transport,
1008
serializer=serializer_v4)
1010
def _get_text_store(self, transport, control_files):
1011
"""See RepositoryFormat._get_text_store()."""
1014
class RepositoryFormat5(PreSplitOutRepositoryFormat):
1015
"""Bzr control format 5.
1017
This repository format has:
1018
- weaves for file texts and inventory
1020
- TextStores for revisions and signatures.
1024
super(RepositoryFormat5, self).__init__()
1025
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
1027
def _get_revision_store(self, repo_transport, control_files):
1028
"""See RepositoryFormat._get_revision_store()."""
1029
"""Return the revision store object for this a_bzrdir."""
1030
return self._get_text_rev_store(repo_transport,
1035
def _get_text_store(self, transport, control_files):
1036
"""See RepositoryFormat._get_text_store()."""
1037
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
1040
class RepositoryFormat6(PreSplitOutRepositoryFormat):
1041
"""Bzr control format 6.
1043
This repository format has:
1044
- weaves for file texts and inventory
1045
- hash subdirectory based stores.
1046
- TextStores for revisions and signatures.
1050
super(RepositoryFormat6, self).__init__()
1051
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
1053
def _get_revision_store(self, repo_transport, control_files):
1054
"""See RepositoryFormat._get_revision_store()."""
1055
return self._get_text_rev_store(repo_transport,
1061
def _get_text_store(self, transport, control_files):
1062
"""See RepositoryFormat._get_text_store()."""
1063
return self._get_versioned_file_store('weaves', transport, control_files)
1066
class MetaDirRepositoryFormat(RepositoryFormat):
1067
"""Common base class for the new repositories using the metadir layour."""
1070
super(MetaDirRepositoryFormat, self).__init__()
1071
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1073
def _create_control_files(self, a_bzrdir):
1074
"""Create the required files and the initial control_files object."""
1075
# FIXME: RBC 20060125 dont peek under the covers
1076
# NB: no need to escape relative paths that are url safe.
1077
repository_transport = a_bzrdir.get_repository_transport(self)
1078
control_files = LockableFiles(repository_transport, 'lock', LockDir)
1079
control_files.create_lock()
1080
return control_files
1082
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1083
"""Upload the initial blank content."""
1084
control_files = self._create_control_files(a_bzrdir)
1085
control_files.lock_write()
1087
control_files._transport.mkdir_multi(dirs,
1088
mode=control_files._dir_mode)
1089
for file, content in files:
1090
control_files.put(file, content)
1091
for file, content in utf8_files:
1092
control_files.put_utf8(file, content)
1094
control_files.put_utf8('shared-storage', '')
1096
control_files.unlock()
1099
class RepositoryFormat7(MetaDirRepositoryFormat):
1100
"""Bzr repository 7.
1102
This repository format has:
1103
- weaves for file texts and inventory
1104
- hash subdirectory based stores.
1105
- TextStores for revisions and signatures.
1106
- a format marker of its own
1107
- an optional 'shared-storage' flag
1108
- an optional 'no-working-trees' flag
1111
def _get_control_store(self, repo_transport, control_files):
1112
"""Return the control store for this repository."""
1113
return self._get_versioned_file_store('',
1118
def get_format_string(self):
1119
"""See RepositoryFormat.get_format_string()."""
1120
return "Bazaar-NG Repository format 7"
1122
def _get_revision_store(self, repo_transport, control_files):
1123
"""See RepositoryFormat._get_revision_store()."""
1124
return self._get_text_rev_store(repo_transport,
1131
def _get_text_store(self, transport, control_files):
1132
"""See RepositoryFormat._get_text_store()."""
1133
return self._get_versioned_file_store('weaves',
1137
def initialize(self, a_bzrdir, shared=False):
1138
"""Create a weave repository.
1140
:param shared: If true the repository will be initialized as a shared
1143
from bzrlib.weavefile import write_weave_v5
1144
from bzrlib.weave import Weave
1146
# Create an empty weave
1148
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1149
empty_weave = sio.getvalue()
1151
mutter('creating repository in %s.', a_bzrdir.transport.base)
1152
dirs = ['revision-store', 'weaves']
1153
files = [('inventory.weave', StringIO(empty_weave)),
1155
utf8_files = [('format', self.get_format_string())]
1157
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1158
return self.open(a_bzrdir=a_bzrdir, _found=True)
1160
def open(self, a_bzrdir, _found=False, _override_transport=None):
1161
"""See RepositoryFormat.open().
1163
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1164
repository at a slightly different url
1165
than normal. I.e. during 'upgrade'.
1168
format = RepositoryFormat.find_format(a_bzrdir)
1169
assert format.__class__ == self.__class__
1170
if _override_transport is not None:
1171
repo_transport = _override_transport
1173
repo_transport = a_bzrdir.get_repository_transport(None)
1174
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1175
text_store = self._get_text_store(repo_transport, control_files)
1176
control_store = self._get_control_store(repo_transport, control_files)
1177
_revision_store = self._get_revision_store(repo_transport, control_files)
1178
return MetaDirRepository(_format=self,
1180
control_files=control_files,
1181
_revision_store=_revision_store,
1182
control_store=control_store,
1183
text_store=text_store)
1186
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1187
"""Bzr repository knit format 1.
1189
This repository format has:
1190
- knits for file texts and inventory
1191
- hash subdirectory based stores.
1192
- knits for revisions and signatures
1193
- TextStores for revisions and signatures.
1194
- a format marker of its own
1195
- an optional 'shared-storage' flag
1196
- an optional 'no-working-trees' flag
1200
def _get_control_store(self, repo_transport, control_files):
1201
"""Return the control store for this repository."""
1202
return self._get_versioned_file_store('',
1206
versionedfile_class=KnitVersionedFile)
1208
def get_format_string(self):
1209
"""See RepositoryFormat.get_format_string()."""
1210
return "Bazaar-NG Knit Repository Format 1"
1212
def _get_revision_store(self, repo_transport, control_files):
1213
"""See RepositoryFormat._get_revision_store()."""
1214
from bzrlib.store.revision.knit import KnitRevisionStore
1215
versioned_file_store = VersionedFileStore(
1217
file_mode = control_files._file_mode,
1220
versionedfile_class=KnitVersionedFile)
1221
return KnitRevisionStore(versioned_file_store)
1223
def _get_text_store(self, transport, control_files):
1224
"""See RepositoryFormat._get_text_store()."""
1225
return self._get_versioned_file_store('knits',
1228
versionedfile_class=KnitVersionedFile)
1230
def initialize(self, a_bzrdir, shared=False):
1231
"""Create a knit format 1 repository.
1233
:param shared: If true the repository will be initialized as a shared
1235
XXX NOTE that this current uses a Weave for testing and will become
1236
A Knit in due course.
1238
from bzrlib.weavefile import write_weave_v5
1239
from bzrlib.weave import Weave
1241
# Create an empty weave
1243
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1244
empty_weave = sio.getvalue()
1246
mutter('creating repository in %s.', a_bzrdir.transport.base)
1247
dirs = ['revision-store', 'knits', 'control']
1248
files = [('control/inventory.weave', StringIO(empty_weave)),
1250
utf8_files = [('format', self.get_format_string())]
1252
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1253
repo_transport = a_bzrdir.get_repository_transport(None)
1254
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1255
control_store = self._get_control_store(repo_transport, control_files)
1256
transaction = bzrlib.transactions.PassThroughTransaction()
1257
# trigger a write of the inventory store.
1258
control_store.get_weave_or_empty('inventory', transaction)
1259
_revision_store = self._get_revision_store(repo_transport, control_files)
1260
_revision_store.has_revision_id('A', transaction)
1261
_revision_store.get_signature_file(transaction)
1262
return self.open(a_bzrdir=a_bzrdir, _found=True)
1264
def open(self, a_bzrdir, _found=False, _override_transport=None):
1265
"""See RepositoryFormat.open().
1267
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1268
repository at a slightly different url
1269
than normal. I.e. during 'upgrade'.
1272
format = RepositoryFormat.find_format(a_bzrdir)
1273
assert format.__class__ == self.__class__
1274
if _override_transport is not None:
1275
repo_transport = _override_transport
1277
repo_transport = a_bzrdir.get_repository_transport(None)
1278
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1279
text_store = self._get_text_store(repo_transport, control_files)
1280
control_store = self._get_control_store(repo_transport, control_files)
1281
_revision_store = self._get_revision_store(repo_transport, control_files)
1282
return KnitRepository(_format=self,
1284
control_files=control_files,
1285
_revision_store=_revision_store,
1286
control_store=control_store,
1287
text_store=text_store)
1290
# formats which have no format string are not discoverable
1291
# and not independently creatable, so are not registered.
1292
_default_format = RepositoryFormat7()
1293
RepositoryFormat.register_format(_default_format)
1294
RepositoryFormat.register_format(RepositoryFormatKnit1())
1295
RepositoryFormat.set_default_format(_default_format)
1296
_legacy_formats = [RepositoryFormat4(),
1297
RepositoryFormat5(),
1298
RepositoryFormat6()]
1301
class InterRepository(InterObject):
1302
"""This class represents operations taking place between two repositories.
1304
Its instances have methods like copy_content and fetch, and contain
1305
references to the source and target repositories these operations can be
1308
Often we will provide convenience methods on 'repository' which carry out
1309
operations with another repository - they will always forward to
1310
InterRepository.get(other).method_name(parameters).
1314
"""The available optimised InterRepository types."""
1317
def copy_content(self, revision_id=None, basis=None):
1318
"""Make a complete copy of the content in self into destination.
1320
This is a destructive operation! Do not use it on existing
1323
:param revision_id: Only copy the content needed to construct
1324
revision_id and its parents.
1325
:param basis: Copy the needed data preferentially from basis.
1328
self.target.set_make_working_trees(self.source.make_working_trees())
1329
except NotImplementedError:
1331
# grab the basis available data
1332
if basis is not None:
1333
self.target.fetch(basis, revision_id=revision_id)
1334
# but dont bother fetching if we have the needed data now.
1335
if (revision_id not in (None, NULL_REVISION) and
1336
self.target.has_revision(revision_id)):
1338
self.target.fetch(self.source, revision_id=revision_id)
1340
def _double_lock(self, lock_source, lock_target):
1341
"""Take out too locks, rolling back the first if the second throws."""
1346
# we want to ensure that we don't leave source locked by mistake.
1347
# and any error on target should not confuse source.
1348
self.source.unlock()
1352
def fetch(self, revision_id=None, pb=None):
1353
"""Fetch the content required to construct revision_id.
1355
The content is copied from source to target.
1357
:param revision_id: if None all content is copied, if NULL_REVISION no
1359
:param pb: optional progress bar to use for progress reports. If not
1360
provided a default one will be created.
1362
Returns the copied revision count and the failed revisions in a tuple:
1365
from bzrlib.fetch import GenericRepoFetcher
1366
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1367
self.source, self.source._format, self.target, self.target._format)
1368
f = GenericRepoFetcher(to_repository=self.target,
1369
from_repository=self.source,
1370
last_revision=revision_id,
1372
return f.count_copied, f.failed_revisions
1374
def lock_read(self):
1375
"""Take out a logical read lock.
1377
This will lock the source branch and the target branch. The source gets
1378
a read lock and the target a read lock.
1380
self._double_lock(self.source.lock_read, self.target.lock_read)
1382
def lock_write(self):
1383
"""Take out a logical write lock.
1385
This will lock the source branch and the target branch. The source gets
1386
a read lock and the target a write lock.
1388
self._double_lock(self.source.lock_read, self.target.lock_write)
1391
def missing_revision_ids(self, revision_id=None):
1392
"""Return the revision ids that source has that target does not.
1394
These are returned in topological order.
1396
:param revision_id: only return revision ids included by this
1399
# generic, possibly worst case, slow code path.
1400
target_ids = set(self.target.all_revision_ids())
1401
if revision_id is not None:
1402
source_ids = self.source.get_ancestry(revision_id)
1403
assert source_ids.pop(0) == None
1405
source_ids = self.source.all_revision_ids()
1406
result_set = set(source_ids).difference(target_ids)
1407
# this may look like a no-op: its not. It preserves the ordering
1408
# other_ids had while only returning the members from other_ids
1409
# that we've decided we need.
1410
return [rev_id for rev_id in source_ids if rev_id in result_set]
1413
"""Release the locks on source and target."""
1415
self.target.unlock()
1417
self.source.unlock()
1420
class InterWeaveRepo(InterRepository):
1421
"""Optimised code paths between Weave based repositories."""
1423
_matching_repo_format = _default_format
1424
"""Repository format for testing with."""
1427
def is_compatible(source, target):
1428
"""Be compatible with known Weave formats.
1430
We dont test for the stores being of specific types becase that
1431
could lead to confusing results, and there is no need to be
1435
return (isinstance(source._format, (RepositoryFormat5,
1437
RepositoryFormat7)) and
1438
isinstance(target._format, (RepositoryFormat5,
1440
RepositoryFormat7)))
1441
except AttributeError:
1445
def copy_content(self, revision_id=None, basis=None):
1446
"""See InterRepository.copy_content()."""
1447
# weave specific optimised path:
1448
if basis is not None:
1449
# copy the basis in, then fetch remaining data.
1450
basis.copy_content_into(self.target, revision_id)
1451
# the basis copy_content_into could misset this.
1453
self.target.set_make_working_trees(self.source.make_working_trees())
1454
except NotImplementedError:
1456
self.target.fetch(self.source, revision_id=revision_id)
1459
self.target.set_make_working_trees(self.source.make_working_trees())
1460
except NotImplementedError:
1462
# FIXME do not peek!
1463
if self.source.control_files._transport.listable():
1464
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1466
self.target.weave_store.copy_all_ids(
1467
self.source.weave_store,
1469
from_transaction=self.source.get_transaction(),
1470
to_transaction=self.target.get_transaction())
1471
pb.update('copying inventory', 0, 1)
1472
self.target.control_weaves.copy_multi(
1473
self.source.control_weaves, ['inventory'],
1474
from_transaction=self.source.get_transaction(),
1475
to_transaction=self.target.get_transaction())
1476
self.target._revision_store.text_store.copy_all_ids(
1477
self.source._revision_store.text_store,
1482
self.target.fetch(self.source, revision_id=revision_id)
1485
def fetch(self, revision_id=None, pb=None):
1486
"""See InterRepository.fetch()."""
1487
from bzrlib.fetch import GenericRepoFetcher
1488
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1489
self.source, self.source._format, self.target, self.target._format)
1490
f = GenericRepoFetcher(to_repository=self.target,
1491
from_repository=self.source,
1492
last_revision=revision_id,
1494
return f.count_copied, f.failed_revisions
1497
def missing_revision_ids(self, revision_id=None):
1498
"""See InterRepository.missing_revision_ids()."""
1499
# we want all revisions to satisfy revision_id in source.
1500
# but we dont want to stat every file here and there.
1501
# we want then, all revisions other needs to satisfy revision_id
1502
# checked, but not those that we have locally.
1503
# so the first thing is to get a subset of the revisions to
1504
# satisfy revision_id in source, and then eliminate those that
1505
# we do already have.
1506
# this is slow on high latency connection to self, but as as this
1507
# disk format scales terribly for push anyway due to rewriting
1508
# inventory.weave, this is considered acceptable.
1510
if revision_id is not None:
1511
source_ids = self.source.get_ancestry(revision_id)
1512
assert source_ids.pop(0) == None
1514
source_ids = self.source._all_possible_ids()
1515
source_ids_set = set(source_ids)
1516
# source_ids is the worst possible case we may need to pull.
1517
# now we want to filter source_ids against what we actually
1518
# have in target, but dont try to check for existence where we know
1519
# we do not have a revision as that would be pointless.
1520
target_ids = set(self.target._all_possible_ids())
1521
possibly_present_revisions = target_ids.intersection(source_ids_set)
1522
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1523
required_revisions = source_ids_set.difference(actually_present_revisions)
1524
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1525
if revision_id is not None:
1526
# we used get_ancestry to determine source_ids then we are assured all
1527
# revisions referenced are present as they are installed in topological order.
1528
# and the tip revision was validated by get_ancestry.
1529
return required_topo_revisions
1531
# if we just grabbed the possibly available ids, then
1532
# we only have an estimate of whats available and need to validate
1533
# that against the revision records.
1534
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1537
class InterKnitRepo(InterRepository):
1538
"""Optimised code paths between Knit based repositories."""
1540
_matching_repo_format = RepositoryFormatKnit1()
1541
"""Repository format for testing with."""
1544
def is_compatible(source, target):
1545
"""Be compatible with known Knit formats.
1547
We dont test for the stores being of specific types becase that
1548
could lead to confusing results, and there is no need to be
1552
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1553
isinstance(target._format, (RepositoryFormatKnit1)))
1554
except AttributeError:
1558
def fetch(self, revision_id=None, pb=None):
1559
"""See InterRepository.fetch()."""
1560
from bzrlib.fetch import KnitRepoFetcher
1561
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1562
self.source, self.source._format, self.target, self.target._format)
1563
f = KnitRepoFetcher(to_repository=self.target,
1564
from_repository=self.source,
1565
last_revision=revision_id,
1567
return f.count_copied, f.failed_revisions
1570
def missing_revision_ids(self, revision_id=None):
1571
"""See InterRepository.missing_revision_ids()."""
1572
if revision_id is not None:
1573
source_ids = self.source.get_ancestry(revision_id)
1574
assert source_ids.pop(0) == None
1576
source_ids = self.source._all_possible_ids()
1577
source_ids_set = set(source_ids)
1578
# source_ids is the worst possible case we may need to pull.
1579
# now we want to filter source_ids against what we actually
1580
# have in target, but dont try to check for existence where we know
1581
# we do not have a revision as that would be pointless.
1582
target_ids = set(self.target._all_possible_ids())
1583
possibly_present_revisions = target_ids.intersection(source_ids_set)
1584
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1585
required_revisions = source_ids_set.difference(actually_present_revisions)
1586
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1587
if revision_id is not None:
1588
# we used get_ancestry to determine source_ids then we are assured all
1589
# revisions referenced are present as they are installed in topological order.
1590
# and the tip revision was validated by get_ancestry.
1591
return required_topo_revisions
1593
# if we just grabbed the possibly available ids, then
1594
# we only have an estimate of whats available and need to validate
1595
# that against the revision records.
1596
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1598
InterRepository.register_optimiser(InterWeaveRepo)
1599
InterRepository.register_optimiser(InterKnitRepo)
1602
class RepositoryTestProviderAdapter(object):
1603
"""A tool to generate a suite testing multiple repository formats at once.
1605
This is done by copying the test once for each transport and injecting
1606
the transport_server, transport_readonly_server, and bzrdir_format and
1607
repository_format classes into each copy. Each copy is also given a new id()
1608
to make it easy to identify.
1611
def __init__(self, transport_server, transport_readonly_server, formats):
1612
self._transport_server = transport_server
1613
self._transport_readonly_server = transport_readonly_server
1614
self._formats = formats
1616
def adapt(self, test):
1617
result = TestSuite()
1618
for repository_format, bzrdir_format in self._formats:
1619
new_test = deepcopy(test)
1620
new_test.transport_server = self._transport_server
1621
new_test.transport_readonly_server = self._transport_readonly_server
1622
new_test.bzrdir_format = bzrdir_format
1623
new_test.repository_format = repository_format
1624
def make_new_test_id():
1625
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1626
return lambda: new_id
1627
new_test.id = make_new_test_id()
1628
result.addTest(new_test)
1632
class InterRepositoryTestProviderAdapter(object):
1633
"""A tool to generate a suite testing multiple inter repository formats.
1635
This is done by copying the test once for each interrepo provider and injecting
1636
the transport_server, transport_readonly_server, repository_format and
1637
repository_to_format classes into each copy.
1638
Each copy is also given a new id() to make it easy to identify.
1641
def __init__(self, transport_server, transport_readonly_server, formats):
1642
self._transport_server = transport_server
1643
self._transport_readonly_server = transport_readonly_server
1644
self._formats = formats
1646
def adapt(self, test):
1647
result = TestSuite()
1648
for interrepo_class, repository_format, repository_format_to in self._formats:
1649
new_test = deepcopy(test)
1650
new_test.transport_server = self._transport_server
1651
new_test.transport_readonly_server = self._transport_readonly_server
1652
new_test.interrepo_class = interrepo_class
1653
new_test.repository_format = repository_format
1654
new_test.repository_format_to = repository_format_to
1655
def make_new_test_id():
1656
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1657
return lambda: new_id
1658
new_test.id = make_new_test_id()
1659
result.addTest(new_test)
1663
def default_test_list():
1664
"""Generate the default list of interrepo permutations to test."""
1666
# test the default InterRepository between format 6 and the current
1668
# XXX: robertc 20060220 reinstate this when there are two supported
1669
# formats which do not have an optimal code path between them.
1670
result.append((InterRepository,
1671
RepositoryFormat6(),
1672
RepositoryFormatKnit1()))
1673
for optimiser in InterRepository._optimisers:
1674
result.append((optimiser,
1675
optimiser._matching_repo_format,
1676
optimiser._matching_repo_format
1678
# if there are specific combinations we want to use, we can add them
1683
class CopyConverter(object):
1684
"""A repository conversion tool which just performs a copy of the content.
1686
This is slow but quite reliable.
1689
def __init__(self, target_format):
1690
"""Create a CopyConverter.
1692
:param target_format: The format the resulting repository should be.
1694
self.target_format = target_format
1696
def convert(self, repo, pb):
1697
"""Perform the conversion of to_convert, giving feedback via pb.
1699
:param to_convert: The disk object to convert.
1700
:param pb: a progress bar to use for progress information.
1705
# this is only useful with metadir layouts - separated repo content.
1706
# trigger an assertion if not such
1707
repo._format.get_format_string()
1708
self.repo_dir = repo.bzrdir
1709
self.step('Moving repository to repository.backup')
1710
self.repo_dir.transport.move('repository', 'repository.backup')
1711
backup_transport = self.repo_dir.transport.clone('repository.backup')
1712
self.source_repo = repo._format.open(self.repo_dir,
1714
_override_transport=backup_transport)
1715
self.step('Creating new repository')
1716
converted = self.target_format.initialize(self.repo_dir,
1717
self.source_repo.is_shared())
1718
converted.lock_write()
1720
self.step('Copying content into repository.')
1721
self.source_repo.copy_content_into(converted)
1724
self.step('Deleting old repository content.')
1725
self.repo_dir.transport.delete_tree('repository.backup')
1726
self.pb.note('repository converted')
1728
def step(self, message):
1729
"""Update the pb by a step."""
1731
self.pb.update(message, self.count, self.total)