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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from copy import deepcopy
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from cStringIO import StringIO
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from unittest import TestSuite
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import bzrlib.bzrdir as bzrdir
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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import bzrlib.errors as errors
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from bzrlib.errors import InvalidRevisionId
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import bzrlib.gpg as gpg
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from bzrlib.graph import Graph
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from bzrlib.inter import InterObject
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from bzrlib.knit import KnitVersionedFile, KnitPlainFactory
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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from bzrlib.osutils import safe_unicode
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from bzrlib.revision import NULL_REVISION
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from bzrlib.store.versioned import VersionedFileStore, WeaveStore
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from bzrlib.store.text import TextStore
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from bzrlib.symbol_versioning import *
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from bzrlib.trace import mutter
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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 = _unescape_xml(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 = _unescape_xml(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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done.add(revision_id)
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def get_revision_inventory(self, revision_id):
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"""Return inventory of a past revision."""
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# TODO: Unify this with get_inventory()
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# bzr 0.0.6 and later imposes the constraint that the inventory_id
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# must be the same as its revision, so this is trivial.
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if revision_id is None:
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# This does not make sense: if there is no revision,
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# then it is the current tree inventory surely ?!
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# and thus get_root_id() is something that looks at the last
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# commit on the branch, and the get_root_id is an inventory check.
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raise NotImplementedError
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# return Inventory(self.get_root_id())
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return self.get_inventory(revision_id)
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"""Return True if this repository is flagged as a shared repository."""
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raise NotImplementedError(self.is_shared)
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"""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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raise NotImplementedError(self.set_make_working_trees)
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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raise NotImplementedError(self.make_working_trees)
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def sign_revision(self, revision_id, gpg_strategy):
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plaintext = Testament.from_revision(self, revision_id).as_short_text()
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self.store_revision_signature(gpg_strategy, plaintext, revision_id)
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def has_signature_for_revision_id(self, revision_id):
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"""Query for a revision signature for revision_id in the repository."""
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return self._revision_store.has_signature(revision_id,
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self.get_transaction())
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def get_signature_text(self, revision_id):
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"""Return the text for a signature."""
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return self._revision_store.get_signature_text(revision_id,
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self.get_transaction())
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class AllInOneRepository(Repository):
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"""Legacy support - the repository behaviour for all-in-one branches."""
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def __init__(self, _format, a_bzrdir, _revision_store, control_store, text_store):
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# we reuse one control files instance.
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dir_mode = a_bzrdir._control_files._dir_mode
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file_mode = a_bzrdir._control_files._file_mode
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def get_store(name, compressed=True, prefixed=False):
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# FIXME: This approach of assuming stores are all entirely compressed
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# or entirely uncompressed is tidy, but breaks upgrade from
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# some existing branches where there's a mixture; we probably
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# still want the option to look for both.
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relpath = a_bzrdir._control_files._escape(name)
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store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
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prefixed=prefixed, compressed=compressed,
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#if self._transport.should_cache():
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# cache_path = os.path.join(self.cache_root, name)
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# os.mkdir(cache_path)
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# store = bzrlib.store.CachedStore(store, cache_path)
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# not broken out yet because the controlweaves|inventory_store
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# and text_store | weave_store bits are still different.
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if isinstance(_format, RepositoryFormat4):
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# cannot remove these - there is still no consistent api
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# which allows access to this old info.
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self.inventory_store = get_store('inventory-store')
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text_store = get_store('text-store')
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super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, _revision_store, control_store, text_store)
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"""AllInOne repositories cannot be shared."""
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def set_make_working_trees(self, new_value):
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"""Set the policy flag for making working trees when creating branches.
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This only applies to branches that use this repository.
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The default is 'True'.
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:param new_value: True to restore the default, False to disable making
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raise NotImplementedError(self.set_make_working_trees)
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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class MetaDirRepository(Repository):
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"""Repositories in the new meta-dir layout."""
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def __init__(self, _format, a_bzrdir, control_files, _revision_store, control_store, text_store):
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super(MetaDirRepository, self).__init__(_format,
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dir_mode = self.control_files._dir_mode
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file_mode = self.control_files._file_mode
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"""Return True if this repository is flagged as a shared repository."""
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return self.control_files._transport.has('shared-storage')
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def set_make_working_trees(self, new_value):
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"""Set the policy flag for making working trees when creating branches.
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This only applies to branches that use this repository.
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The default is 'True'.
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:param new_value: True to restore the default, False to disable making
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self.control_files._transport.delete('no-working-trees')
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except errors.NoSuchFile:
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self.control_files.put_utf8('no-working-trees', '')
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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return not self.control_files._transport.has('no-working-trees')
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class KnitRepository(MetaDirRepository):
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"""Knit format repository."""
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def all_revision_ids(self):
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"""See Repository.all_revision_ids()."""
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return self._revision_store.all_revision_ids(self.get_transaction())
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def fileid_involved_between_revs(self, from_revid, to_revid):
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"""Find file_id(s) which are involved in the changes between revisions.
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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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vf = self._get_revision_vf()
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from_set = set(vf.get_ancestry(from_revid))
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to_set = set(vf.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)
707
def fileid_involved(self, last_revid=None):
708
"""Find all file_ids modified in the ancestry of last_revid.
710
:param last_revid: If None, last_revision() will be used.
713
changed = set(self.all_revision_ids())
715
changed = set(self.get_ancestry(last_revid))
718
return self._fileid_involved_by_set(changed)
721
def get_ancestry(self, revision_id):
722
"""Return a list of revision-ids integrated by a revision.
724
This is topologically sorted.
726
if revision_id is None:
728
vf = self._get_revision_vf()
730
return [None] + vf.get_ancestry(revision_id)
731
except errors.RevisionNotPresent:
732
raise errors.NoSuchRevision(self, revision_id)
735
def get_revision(self, revision_id):
736
"""Return the Revision object for a named revision"""
737
return self.get_revision_reconcile(revision_id)
740
def get_revision_graph(self, revision_id=None):
741
"""Return a dictionary containing the revision graph.
743
:return: a dictionary of revision_id->revision_parents_list.
745
weave = self._get_revision_vf()
746
entire_graph = weave.get_graph()
747
if revision_id is None:
748
return weave.get_graph()
749
elif revision_id not in weave:
750
raise errors.NoSuchRevision(self, revision_id)
752
# add what can be reached from revision_id
754
pending = set([revision_id])
755
while len(pending) > 0:
757
result[node] = weave.get_parents(node)
758
for revision_id in result[node]:
759
if revision_id not in result:
760
pending.add(revision_id)
764
def get_revision_graph_with_ghosts(self, revision_ids=None):
765
"""Return a graph of the revisions with ghosts marked as applicable.
767
:param revision_ids: an iterable of revisions to graph or None for all.
768
:return: a Graph object with the graph reachable from revision_ids.
771
vf = self._get_revision_vf()
772
versions = vf.versions()
774
pending = set(self.all_revision_ids())
777
pending = set(revision_ids)
778
required = set(revision_ids)
781
revision_id = pending.pop()
782
if not revision_id in versions:
783
if revision_id in required:
784
raise errors.NoSuchRevision(self, revision_id)
786
result.add_ghost(revision_id)
788
parent_ids = vf.get_parents_with_ghosts(revision_id)
789
for parent_id in parent_ids:
790
# is this queued or done ?
791
if (parent_id not in pending and
792
parent_id not in done):
794
pending.add(parent_id)
795
result.add_node(revision_id, parent_ids)
799
def _get_revision_vf(self):
800
""":return: a versioned file containing the revisions."""
801
vf = self._revision_store.get_revision_file(self.get_transaction())
806
"""Reconcile this repository."""
807
from bzrlib.reconcile import KnitReconciler
808
reconciler = KnitReconciler(self)
809
reconciler.reconcile()
812
def revision_parents(self, revid):
813
return self._get_revision_vf().get_parents(rev_id)
815
class RepositoryFormat(object):
816
"""A repository format.
818
Formats provide three things:
819
* An initialization routine to construct repository data on disk.
820
* a format string which is used when the BzrDir supports versioned
822
* an open routine which returns a Repository instance.
824
Formats are placed in an dict by their format string for reference
825
during opening. These should be subclasses of RepositoryFormat
828
Once a format is deprecated, just deprecate the initialize and open
829
methods on the format class. Do not deprecate the object, as the
830
object will be created every system load.
832
Common instance attributes:
833
_matchingbzrdir - the bzrdir format that the repository format was
834
originally written to work with. This can be used if manually
835
constructing a bzrdir and repository, or more commonly for test suite
839
_default_format = None
840
"""The default format used for new repositories."""
843
"""The known formats."""
846
def find_format(klass, a_bzrdir):
847
"""Return the format for the repository object in a_bzrdir."""
849
transport = a_bzrdir.get_repository_transport(None)
850
format_string = transport.get("format").read()
851
return klass._formats[format_string]
852
except errors.NoSuchFile:
853
raise errors.NoRepositoryPresent(a_bzrdir)
855
raise errors.UnknownFormatError(format_string)
857
def _get_control_store(self, repo_transport, control_files):
858
"""Return the control store for this repository."""
859
raise NotImplementedError(self._get_control_store)
862
def get_default_format(klass):
863
"""Return the current default format."""
864
return klass._default_format
866
def get_format_string(self):
867
"""Return the ASCII format string that identifies this format.
869
Note that in pre format ?? repositories the format string is
870
not permitted nor written to disk.
872
raise NotImplementedError(self.get_format_string)
874
def _get_revision_store(self, repo_transport, control_files):
875
"""Return the revision store object for this a_bzrdir."""
876
raise NotImplementedError(self._get_revision_store)
878
def _get_text_rev_store(self,
885
"""Common logic for getting a revision store for a repository.
887
see self._get_revision_store for the subclass-overridable method to
888
get the store for a repository.
890
from bzrlib.store.revision.text import TextRevisionStore
891
dir_mode = control_files._dir_mode
892
file_mode = control_files._file_mode
893
text_store =TextStore(transport.clone(name),
895
compressed=compressed,
898
_revision_store = TextRevisionStore(text_store, serializer)
899
return _revision_store
901
def _get_versioned_file_store(self,
906
versionedfile_class=WeaveFile):
907
weave_transport = control_files._transport.clone(name)
908
dir_mode = control_files._dir_mode
909
file_mode = control_files._file_mode
910
return VersionedFileStore(weave_transport, prefixed=prefixed,
913
versionedfile_class=versionedfile_class)
915
def initialize(self, a_bzrdir, shared=False):
916
"""Initialize a repository of this format in a_bzrdir.
918
:param a_bzrdir: The bzrdir to put the new repository in it.
919
:param shared: The repository should be initialized as a sharable one.
921
This may raise UninitializableFormat if shared repository are not
922
compatible the a_bzrdir.
925
def is_supported(self):
926
"""Is this format supported?
928
Supported formats must be initializable and openable.
929
Unsupported formats may not support initialization or committing or
930
some other features depending on the reason for not being supported.
934
def open(self, a_bzrdir, _found=False):
935
"""Return an instance of this format for the bzrdir a_bzrdir.
937
_found is a private parameter, do not use it.
939
raise NotImplementedError(self.open)
942
def register_format(klass, format):
943
klass._formats[format.get_format_string()] = format
946
def set_default_format(klass, format):
947
klass._default_format = format
950
def unregister_format(klass, format):
951
assert klass._formats[format.get_format_string()] is format
952
del klass._formats[format.get_format_string()]
955
class PreSplitOutRepositoryFormat(RepositoryFormat):
956
"""Base class for the pre split out repository formats."""
958
def initialize(self, a_bzrdir, shared=False, _internal=False):
959
"""Create a weave repository.
961
TODO: when creating split out bzr branch formats, move this to a common
962
base for Format5, Format6. or something like that.
964
from bzrlib.weavefile import write_weave_v5
965
from bzrlib.weave import Weave
968
raise errors.IncompatibleFormat(self, a_bzrdir._format)
971
# always initialized when the bzrdir is.
972
return self.open(a_bzrdir, _found=True)
974
# Create an empty weave
976
bzrlib.weavefile.write_weave_v5(Weave(), sio)
977
empty_weave = sio.getvalue()
979
mutter('creating repository in %s.', a_bzrdir.transport.base)
980
dirs = ['revision-store', 'weaves']
981
files = [('inventory.weave', StringIO(empty_weave)),
984
# FIXME: RBC 20060125 dont peek under the covers
985
# NB: no need to escape relative paths that are url safe.
986
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
988
control_files.create_lock()
989
control_files.lock_write()
990
control_files._transport.mkdir_multi(dirs,
991
mode=control_files._dir_mode)
993
for file, content in files:
994
control_files.put(file, content)
996
control_files.unlock()
997
return self.open(a_bzrdir, _found=True)
999
def _get_control_store(self, repo_transport, control_files):
1000
"""Return the control store for this repository."""
1001
return self._get_versioned_file_store('',
1006
def _get_text_store(self, transport, control_files):
1007
"""Get a store for file texts for this format."""
1008
raise NotImplementedError(self._get_text_store)
1010
def open(self, a_bzrdir, _found=False):
1011
"""See RepositoryFormat.open()."""
1013
# we are being called directly and must probe.
1014
raise NotImplementedError
1016
repo_transport = a_bzrdir.get_repository_transport(None)
1017
control_files = a_bzrdir._control_files
1018
text_store = self._get_text_store(repo_transport, control_files)
1019
control_store = self._get_control_store(repo_transport, control_files)
1020
_revision_store = self._get_revision_store(repo_transport, control_files)
1021
return AllInOneRepository(_format=self,
1023
_revision_store=_revision_store,
1024
control_store=control_store,
1025
text_store=text_store)
1028
class RepositoryFormat4(PreSplitOutRepositoryFormat):
1029
"""Bzr repository format 4.
1031
This repository format has:
1033
- TextStores for texts, inventories,revisions.
1035
This format is deprecated: it indexes texts using a text id which is
1036
removed in format 5; initializationa and write support for this format
1041
super(RepositoryFormat4, self).__init__()
1042
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
1044
def initialize(self, url, shared=False, _internal=False):
1045
"""Format 4 branches cannot be created."""
1046
raise errors.UninitializableFormat(self)
1048
def is_supported(self):
1049
"""Format 4 is not supported.
1051
It is not supported because the model changed from 4 to 5 and the
1052
conversion logic is expensive - so doing it on the fly was not
1057
def _get_control_store(self, repo_transport, control_files):
1058
"""Format 4 repositories have no formal control store at this point.
1060
This will cause any control-file-needing apis to fail - this is desired.
1064
def _get_revision_store(self, repo_transport, control_files):
1065
"""See RepositoryFormat._get_revision_store()."""
1066
from bzrlib.xml4 import serializer_v4
1067
return self._get_text_rev_store(repo_transport,
1070
serializer=serializer_v4)
1072
def _get_text_store(self, transport, control_files):
1073
"""See RepositoryFormat._get_text_store()."""
1076
class RepositoryFormat5(PreSplitOutRepositoryFormat):
1077
"""Bzr control format 5.
1079
This repository format has:
1080
- weaves for file texts and inventory
1082
- TextStores for revisions and signatures.
1086
super(RepositoryFormat5, self).__init__()
1087
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
1089
def _get_revision_store(self, repo_transport, control_files):
1090
"""See RepositoryFormat._get_revision_store()."""
1091
"""Return the revision store object for this a_bzrdir."""
1092
return self._get_text_rev_store(repo_transport,
1097
def _get_text_store(self, transport, control_files):
1098
"""See RepositoryFormat._get_text_store()."""
1099
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
1102
class RepositoryFormat6(PreSplitOutRepositoryFormat):
1103
"""Bzr control format 6.
1105
This repository format has:
1106
- weaves for file texts and inventory
1107
- hash subdirectory based stores.
1108
- TextStores for revisions and signatures.
1112
super(RepositoryFormat6, self).__init__()
1113
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
1115
def _get_revision_store(self, repo_transport, control_files):
1116
"""See RepositoryFormat._get_revision_store()."""
1117
return self._get_text_rev_store(repo_transport,
1123
def _get_text_store(self, transport, control_files):
1124
"""See RepositoryFormat._get_text_store()."""
1125
return self._get_versioned_file_store('weaves', transport, control_files)
1128
class MetaDirRepositoryFormat(RepositoryFormat):
1129
"""Common base class for the new repositories using the metadir layour."""
1132
super(MetaDirRepositoryFormat, self).__init__()
1133
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1135
def _create_control_files(self, a_bzrdir):
1136
"""Create the required files and the initial control_files object."""
1137
# FIXME: RBC 20060125 dont peek under the covers
1138
# NB: no need to escape relative paths that are url safe.
1139
repository_transport = a_bzrdir.get_repository_transport(self)
1140
control_files = LockableFiles(repository_transport, 'lock', LockDir)
1141
control_files.create_lock()
1142
return control_files
1144
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1145
"""Upload the initial blank content."""
1146
control_files = self._create_control_files(a_bzrdir)
1147
control_files.lock_write()
1149
control_files._transport.mkdir_multi(dirs,
1150
mode=control_files._dir_mode)
1151
for file, content in files:
1152
control_files.put(file, content)
1153
for file, content in utf8_files:
1154
control_files.put_utf8(file, content)
1156
control_files.put_utf8('shared-storage', '')
1158
control_files.unlock()
1161
class RepositoryFormat7(MetaDirRepositoryFormat):
1162
"""Bzr repository 7.
1164
This repository format has:
1165
- weaves for file texts and inventory
1166
- hash subdirectory based stores.
1167
- TextStores for revisions and signatures.
1168
- a format marker of its own
1169
- an optional 'shared-storage' flag
1170
- an optional 'no-working-trees' flag
1173
def _get_control_store(self, repo_transport, control_files):
1174
"""Return the control store for this repository."""
1175
return self._get_versioned_file_store('',
1180
def get_format_string(self):
1181
"""See RepositoryFormat.get_format_string()."""
1182
return "Bazaar-NG Repository format 7"
1184
def _get_revision_store(self, repo_transport, control_files):
1185
"""See RepositoryFormat._get_revision_store()."""
1186
return self._get_text_rev_store(repo_transport,
1193
def _get_text_store(self, transport, control_files):
1194
"""See RepositoryFormat._get_text_store()."""
1195
return self._get_versioned_file_store('weaves',
1199
def initialize(self, a_bzrdir, shared=False):
1200
"""Create a weave repository.
1202
:param shared: If true the repository will be initialized as a shared
1205
from bzrlib.weavefile import write_weave_v5
1206
from bzrlib.weave import Weave
1208
# Create an empty weave
1210
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1211
empty_weave = sio.getvalue()
1213
mutter('creating repository in %s.', a_bzrdir.transport.base)
1214
dirs = ['revision-store', 'weaves']
1215
files = [('inventory.weave', StringIO(empty_weave)),
1217
utf8_files = [('format', self.get_format_string())]
1219
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1220
return self.open(a_bzrdir=a_bzrdir, _found=True)
1222
def open(self, a_bzrdir, _found=False, _override_transport=None):
1223
"""See RepositoryFormat.open().
1225
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1226
repository at a slightly different url
1227
than normal. I.e. during 'upgrade'.
1230
format = RepositoryFormat.find_format(a_bzrdir)
1231
assert format.__class__ == self.__class__
1232
if _override_transport is not None:
1233
repo_transport = _override_transport
1235
repo_transport = a_bzrdir.get_repository_transport(None)
1236
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1237
text_store = self._get_text_store(repo_transport, control_files)
1238
control_store = self._get_control_store(repo_transport, control_files)
1239
_revision_store = self._get_revision_store(repo_transport, control_files)
1240
return MetaDirRepository(_format=self,
1242
control_files=control_files,
1243
_revision_store=_revision_store,
1244
control_store=control_store,
1245
text_store=text_store)
1248
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1249
"""Bzr repository knit format 1.
1251
This repository format has:
1252
- knits for file texts and inventory
1253
- hash subdirectory based stores.
1254
- knits for revisions and signatures
1255
- TextStores for revisions and signatures.
1256
- a format marker of its own
1257
- an optional 'shared-storage' flag
1258
- an optional 'no-working-trees' flag
1262
def _get_control_store(self, repo_transport, control_files):
1263
"""Return the control store for this repository."""
1264
return self._get_versioned_file_store('',
1268
versionedfile_class=KnitVersionedFile)
1270
def get_format_string(self):
1271
"""See RepositoryFormat.get_format_string()."""
1272
return "Bazaar-NG Knit Repository Format 1"
1274
def _get_revision_store(self, repo_transport, control_files):
1275
"""See RepositoryFormat._get_revision_store()."""
1276
from bzrlib.store.revision.knit import KnitRevisionStore
1277
versioned_file_store = VersionedFileStore(
1279
file_mode = control_files._file_mode,
1282
versionedfile_class=KnitVersionedFile,
1283
versionedfile_kwargs={'delta':False, 'factory':KnitPlainFactory()})
1284
return KnitRevisionStore(versioned_file_store)
1286
def _get_text_store(self, transport, control_files):
1287
"""See RepositoryFormat._get_text_store()."""
1288
return self._get_versioned_file_store('knits',
1291
versionedfile_class=KnitVersionedFile)
1293
def initialize(self, a_bzrdir, shared=False):
1294
"""Create a knit format 1 repository.
1296
:param shared: If true the repository will be initialized as a shared
1298
XXX NOTE that this current uses a Weave for testing and will become
1299
A Knit in due course.
1301
from bzrlib.weavefile import write_weave_v5
1302
from bzrlib.weave import Weave
1304
# Create an empty weave
1306
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1307
empty_weave = sio.getvalue()
1309
mutter('creating repository in %s.', a_bzrdir.transport.base)
1310
dirs = ['revision-store', 'knits', 'control']
1311
files = [('control/inventory.weave', StringIO(empty_weave)),
1313
utf8_files = [('format', self.get_format_string())]
1315
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1316
repo_transport = a_bzrdir.get_repository_transport(None)
1317
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1318
control_store = self._get_control_store(repo_transport, control_files)
1319
transaction = bzrlib.transactions.WriteTransaction()
1320
# trigger a write of the inventory store.
1321
control_store.get_weave_or_empty('inventory', transaction)
1322
_revision_store = self._get_revision_store(repo_transport, control_files)
1323
_revision_store.has_revision_id('A', transaction)
1324
_revision_store.get_signature_file(transaction)
1325
return self.open(a_bzrdir=a_bzrdir, _found=True)
1327
def open(self, a_bzrdir, _found=False, _override_transport=None):
1328
"""See RepositoryFormat.open().
1330
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1331
repository at a slightly different url
1332
than normal. I.e. during 'upgrade'.
1335
format = RepositoryFormat.find_format(a_bzrdir)
1336
assert format.__class__ == self.__class__
1337
if _override_transport is not None:
1338
repo_transport = _override_transport
1340
repo_transport = a_bzrdir.get_repository_transport(None)
1341
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1342
text_store = self._get_text_store(repo_transport, control_files)
1343
control_store = self._get_control_store(repo_transport, control_files)
1344
_revision_store = self._get_revision_store(repo_transport, control_files)
1345
return KnitRepository(_format=self,
1347
control_files=control_files,
1348
_revision_store=_revision_store,
1349
control_store=control_store,
1350
text_store=text_store)
1353
# formats which have no format string are not discoverable
1354
# and not independently creatable, so are not registered.
1355
_default_format = RepositoryFormat7()
1356
RepositoryFormat.register_format(_default_format)
1357
RepositoryFormat.register_format(RepositoryFormatKnit1())
1358
RepositoryFormat.set_default_format(_default_format)
1359
_legacy_formats = [RepositoryFormat4(),
1360
RepositoryFormat5(),
1361
RepositoryFormat6()]
1364
class InterRepository(InterObject):
1365
"""This class represents operations taking place between two repositories.
1367
Its instances have methods like copy_content and fetch, and contain
1368
references to the source and target repositories these operations can be
1371
Often we will provide convenience methods on 'repository' which carry out
1372
operations with another repository - they will always forward to
1373
InterRepository.get(other).method_name(parameters).
1377
"""The available optimised InterRepository types."""
1380
def copy_content(self, revision_id=None, basis=None):
1381
"""Make a complete copy of the content in self into destination.
1383
This is a destructive operation! Do not use it on existing
1386
:param revision_id: Only copy the content needed to construct
1387
revision_id and its parents.
1388
:param basis: Copy the needed data preferentially from basis.
1391
self.target.set_make_working_trees(self.source.make_working_trees())
1392
except NotImplementedError:
1394
# grab the basis available data
1395
if basis is not None:
1396
self.target.fetch(basis, revision_id=revision_id)
1397
# but dont bother fetching if we have the needed data now.
1398
if (revision_id not in (None, NULL_REVISION) and
1399
self.target.has_revision(revision_id)):
1401
self.target.fetch(self.source, revision_id=revision_id)
1403
def _double_lock(self, lock_source, lock_target):
1404
"""Take out too locks, rolling back the first if the second throws."""
1409
# we want to ensure that we don't leave source locked by mistake.
1410
# and any error on target should not confuse source.
1411
self.source.unlock()
1415
def fetch(self, revision_id=None, pb=None):
1416
"""Fetch the content required to construct revision_id.
1418
The content is copied from source to target.
1420
:param revision_id: if None all content is copied, if NULL_REVISION no
1422
:param pb: optional progress bar to use for progress reports. If not
1423
provided a default one will be created.
1425
Returns the copied revision count and the failed revisions in a tuple:
1428
from bzrlib.fetch import GenericRepoFetcher
1429
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1430
self.source, self.source._format, self.target, self.target._format)
1431
f = GenericRepoFetcher(to_repository=self.target,
1432
from_repository=self.source,
1433
last_revision=revision_id,
1435
return f.count_copied, f.failed_revisions
1437
def lock_read(self):
1438
"""Take out a logical read lock.
1440
This will lock the source branch and the target branch. The source gets
1441
a read lock and the target a read lock.
1443
self._double_lock(self.source.lock_read, self.target.lock_read)
1445
def lock_write(self):
1446
"""Take out a logical write lock.
1448
This will lock the source branch and the target branch. The source gets
1449
a read lock and the target a write lock.
1451
self._double_lock(self.source.lock_read, self.target.lock_write)
1454
def missing_revision_ids(self, revision_id=None):
1455
"""Return the revision ids that source has that target does not.
1457
These are returned in topological order.
1459
:param revision_id: only return revision ids included by this
1462
# generic, possibly worst case, slow code path.
1463
target_ids = set(self.target.all_revision_ids())
1464
if revision_id is not None:
1465
source_ids = self.source.get_ancestry(revision_id)
1466
assert source_ids.pop(0) == None
1468
source_ids = self.source.all_revision_ids()
1469
result_set = set(source_ids).difference(target_ids)
1470
# this may look like a no-op: its not. It preserves the ordering
1471
# other_ids had while only returning the members from other_ids
1472
# that we've decided we need.
1473
return [rev_id for rev_id in source_ids if rev_id in result_set]
1476
"""Release the locks on source and target."""
1478
self.target.unlock()
1480
self.source.unlock()
1483
class InterWeaveRepo(InterRepository):
1484
"""Optimised code paths between Weave based repositories."""
1486
_matching_repo_format = _default_format
1487
"""Repository format for testing with."""
1490
def is_compatible(source, target):
1491
"""Be compatible with known Weave formats.
1493
We dont test for the stores being of specific types becase that
1494
could lead to confusing results, and there is no need to be
1498
return (isinstance(source._format, (RepositoryFormat5,
1500
RepositoryFormat7)) and
1501
isinstance(target._format, (RepositoryFormat5,
1503
RepositoryFormat7)))
1504
except AttributeError:
1508
def copy_content(self, revision_id=None, basis=None):
1509
"""See InterRepository.copy_content()."""
1510
# weave specific optimised path:
1511
if basis is not None:
1512
# copy the basis in, then fetch remaining data.
1513
basis.copy_content_into(self.target, revision_id)
1514
# the basis copy_content_into could misset this.
1516
self.target.set_make_working_trees(self.source.make_working_trees())
1517
except NotImplementedError:
1519
self.target.fetch(self.source, revision_id=revision_id)
1522
self.target.set_make_working_trees(self.source.make_working_trees())
1523
except NotImplementedError:
1525
# FIXME do not peek!
1526
if self.source.control_files._transport.listable():
1527
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1529
self.target.weave_store.copy_all_ids(
1530
self.source.weave_store,
1532
from_transaction=self.source.get_transaction(),
1533
to_transaction=self.target.get_transaction())
1534
pb.update('copying inventory', 0, 1)
1535
self.target.control_weaves.copy_multi(
1536
self.source.control_weaves, ['inventory'],
1537
from_transaction=self.source.get_transaction(),
1538
to_transaction=self.target.get_transaction())
1539
self.target._revision_store.text_store.copy_all_ids(
1540
self.source._revision_store.text_store,
1545
self.target.fetch(self.source, revision_id=revision_id)
1548
def fetch(self, revision_id=None, pb=None):
1549
"""See InterRepository.fetch()."""
1550
from bzrlib.fetch import GenericRepoFetcher
1551
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1552
self.source, self.source._format, self.target, self.target._format)
1553
f = GenericRepoFetcher(to_repository=self.target,
1554
from_repository=self.source,
1555
last_revision=revision_id,
1557
return f.count_copied, f.failed_revisions
1560
def missing_revision_ids(self, revision_id=None):
1561
"""See InterRepository.missing_revision_ids()."""
1562
# we want all revisions to satisfy revision_id in source.
1563
# but we dont want to stat every file here and there.
1564
# we want then, all revisions other needs to satisfy revision_id
1565
# checked, but not those that we have locally.
1566
# so the first thing is to get a subset of the revisions to
1567
# satisfy revision_id in source, and then eliminate those that
1568
# we do already have.
1569
# this is slow on high latency connection to self, but as as this
1570
# disk format scales terribly for push anyway due to rewriting
1571
# inventory.weave, this is considered acceptable.
1573
if revision_id is not None:
1574
source_ids = self.source.get_ancestry(revision_id)
1575
assert source_ids.pop(0) == None
1577
source_ids = self.source._all_possible_ids()
1578
source_ids_set = set(source_ids)
1579
# source_ids is the worst possible case we may need to pull.
1580
# now we want to filter source_ids against what we actually
1581
# have in target, but dont try to check for existence where we know
1582
# we do not have a revision as that would be pointless.
1583
target_ids = set(self.target._all_possible_ids())
1584
possibly_present_revisions = target_ids.intersection(source_ids_set)
1585
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1586
required_revisions = source_ids_set.difference(actually_present_revisions)
1587
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1588
if revision_id is not None:
1589
# we used get_ancestry to determine source_ids then we are assured all
1590
# revisions referenced are present as they are installed in topological order.
1591
# and the tip revision was validated by get_ancestry.
1592
return required_topo_revisions
1594
# if we just grabbed the possibly available ids, then
1595
# we only have an estimate of whats available and need to validate
1596
# that against the revision records.
1597
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1600
class InterKnitRepo(InterRepository):
1601
"""Optimised code paths between Knit based repositories."""
1603
_matching_repo_format = RepositoryFormatKnit1()
1604
"""Repository format for testing with."""
1607
def is_compatible(source, target):
1608
"""Be compatible with known Knit formats.
1610
We dont test for the stores being of specific types becase that
1611
could lead to confusing results, and there is no need to be
1615
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1616
isinstance(target._format, (RepositoryFormatKnit1)))
1617
except AttributeError:
1621
def fetch(self, revision_id=None, pb=None):
1622
"""See InterRepository.fetch()."""
1623
from bzrlib.fetch import KnitRepoFetcher
1624
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1625
self.source, self.source._format, self.target, self.target._format)
1626
f = KnitRepoFetcher(to_repository=self.target,
1627
from_repository=self.source,
1628
last_revision=revision_id,
1630
return f.count_copied, f.failed_revisions
1633
def missing_revision_ids(self, revision_id=None):
1634
"""See InterRepository.missing_revision_ids()."""
1635
if revision_id is not None:
1636
source_ids = self.source.get_ancestry(revision_id)
1637
assert source_ids.pop(0) == None
1639
source_ids = self.source._all_possible_ids()
1640
source_ids_set = set(source_ids)
1641
# source_ids is the worst possible case we may need to pull.
1642
# now we want to filter source_ids against what we actually
1643
# have in target, but dont try to check for existence where we know
1644
# we do not have a revision as that would be pointless.
1645
target_ids = set(self.target._all_possible_ids())
1646
possibly_present_revisions = target_ids.intersection(source_ids_set)
1647
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1648
required_revisions = source_ids_set.difference(actually_present_revisions)
1649
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1650
if revision_id is not None:
1651
# we used get_ancestry to determine source_ids then we are assured all
1652
# revisions referenced are present as they are installed in topological order.
1653
# and the tip revision was validated by get_ancestry.
1654
return required_topo_revisions
1656
# if we just grabbed the possibly available ids, then
1657
# we only have an estimate of whats available and need to validate
1658
# that against the revision records.
1659
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1661
InterRepository.register_optimiser(InterWeaveRepo)
1662
InterRepository.register_optimiser(InterKnitRepo)
1665
class RepositoryTestProviderAdapter(object):
1666
"""A tool to generate a suite testing multiple repository formats at once.
1668
This is done by copying the test once for each transport and injecting
1669
the transport_server, transport_readonly_server, and bzrdir_format and
1670
repository_format classes into each copy. Each copy is also given a new id()
1671
to make it easy to identify.
1674
def __init__(self, transport_server, transport_readonly_server, formats):
1675
self._transport_server = transport_server
1676
self._transport_readonly_server = transport_readonly_server
1677
self._formats = formats
1679
def adapt(self, test):
1680
result = TestSuite()
1681
for repository_format, bzrdir_format in self._formats:
1682
new_test = deepcopy(test)
1683
new_test.transport_server = self._transport_server
1684
new_test.transport_readonly_server = self._transport_readonly_server
1685
new_test.bzrdir_format = bzrdir_format
1686
new_test.repository_format = repository_format
1687
def make_new_test_id():
1688
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1689
return lambda: new_id
1690
new_test.id = make_new_test_id()
1691
result.addTest(new_test)
1695
class InterRepositoryTestProviderAdapter(object):
1696
"""A tool to generate a suite testing multiple inter repository formats.
1698
This is done by copying the test once for each interrepo provider and injecting
1699
the transport_server, transport_readonly_server, repository_format and
1700
repository_to_format classes into each copy.
1701
Each copy is also given a new id() to make it easy to identify.
1704
def __init__(self, transport_server, transport_readonly_server, formats):
1705
self._transport_server = transport_server
1706
self._transport_readonly_server = transport_readonly_server
1707
self._formats = formats
1709
def adapt(self, test):
1710
result = TestSuite()
1711
for interrepo_class, repository_format, repository_format_to in self._formats:
1712
new_test = deepcopy(test)
1713
new_test.transport_server = self._transport_server
1714
new_test.transport_readonly_server = self._transport_readonly_server
1715
new_test.interrepo_class = interrepo_class
1716
new_test.repository_format = repository_format
1717
new_test.repository_format_to = repository_format_to
1718
def make_new_test_id():
1719
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1720
return lambda: new_id
1721
new_test.id = make_new_test_id()
1722
result.addTest(new_test)
1726
def default_test_list():
1727
"""Generate the default list of interrepo permutations to test."""
1729
# test the default InterRepository between format 6 and the current
1731
# XXX: robertc 20060220 reinstate this when there are two supported
1732
# formats which do not have an optimal code path between them.
1733
result.append((InterRepository,
1734
RepositoryFormat6(),
1735
RepositoryFormatKnit1()))
1736
for optimiser in InterRepository._optimisers:
1737
result.append((optimiser,
1738
optimiser._matching_repo_format,
1739
optimiser._matching_repo_format
1741
# if there are specific combinations we want to use, we can add them
1746
class CopyConverter(object):
1747
"""A repository conversion tool which just performs a copy of the content.
1749
This is slow but quite reliable.
1752
def __init__(self, target_format):
1753
"""Create a CopyConverter.
1755
:param target_format: The format the resulting repository should be.
1757
self.target_format = target_format
1759
def convert(self, repo, pb):
1760
"""Perform the conversion of to_convert, giving feedback via pb.
1762
:param to_convert: The disk object to convert.
1763
:param pb: a progress bar to use for progress information.
1768
# this is only useful with metadir layouts - separated repo content.
1769
# trigger an assertion if not such
1770
repo._format.get_format_string()
1771
self.repo_dir = repo.bzrdir
1772
self.step('Moving repository to repository.backup')
1773
self.repo_dir.transport.move('repository', 'repository.backup')
1774
backup_transport = self.repo_dir.transport.clone('repository.backup')
1775
self.source_repo = repo._format.open(self.repo_dir,
1777
_override_transport=backup_transport)
1778
self.step('Creating new repository')
1779
converted = self.target_format.initialize(self.repo_dir,
1780
self.source_repo.is_shared())
1781
converted.lock_write()
1783
self.step('Copying content into repository.')
1784
self.source_repo.copy_content_into(converted)
1787
self.step('Deleting old repository content.')
1788
self.repo_dir.transport.delete_tree('repository.backup')
1789
self.pb.note('repository converted')
1791
def step(self, message):
1792
"""Update the pb by a step."""
1794
self.pb.update(message, self.count, self.total)
1797
# Copied from xml.sax.saxutils
1798
def _unescape_xml(data):
1799
"""Unescape &, <, and > in a string of data.
1801
data = data.replace("<", "<")
1802
data = data.replace(">", ">")
1803
# must do ampersand last
1804
return data.replace("&", "&")