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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
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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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# 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)
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def get_revision(self, revision_id):
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"""Return the Revision object for a named revision"""
709
return self.get_revision_reconcile(revision_id)
712
def get_revision_graph_with_ghosts(self, revision_ids=None):
713
"""Return a graph of the revisions with ghosts marked as applicable.
715
:param revision_ids: an iterable of revisions to graph or None for all.
716
:return: a Graph object with the graph reachable from revision_ids.
719
vf = self._revision_store.get_revision_file(self.get_transaction())
720
versions = vf.versions()
722
pending = set(self.all_revision_ids())
725
pending = set(revision_ids)
726
required = set(revision_ids)
729
revision_id = pending.pop()
730
if not revision_id in versions:
731
if revision_id in required:
732
raise errors.NoSuchRevision(self, revision_id)
734
result.add_ghost(revision_id)
736
parent_ids = vf.get_parents_with_ghosts(revision_id)
737
for parent_id in parent_ids:
738
# is this queued or done ?
739
if (parent_id not in pending and
740
parent_id not in done):
742
pending.add(parent_id)
743
result.add_node(revision_id, parent_ids)
749
"""Reconcile this repository."""
750
from bzrlib.reconcile import KnitReconciler
751
reconciler = KnitReconciler(self)
752
reconciler.reconcile()
756
class RepositoryFormat(object):
757
"""A repository format.
759
Formats provide three things:
760
* An initialization routine to construct repository data on disk.
761
* a format string which is used when the BzrDir supports versioned
763
* an open routine which returns a Repository instance.
765
Formats are placed in an dict by their format string for reference
766
during opening. These should be subclasses of RepositoryFormat
769
Once a format is deprecated, just deprecate the initialize and open
770
methods on the format class. Do not deprecate the object, as the
771
object will be created every system load.
773
Common instance attributes:
774
_matchingbzrdir - the bzrdir format that the repository format was
775
originally written to work with. This can be used if manually
776
constructing a bzrdir and repository, or more commonly for test suite
780
_default_format = None
781
"""The default format used for new repositories."""
784
"""The known formats."""
787
def find_format(klass, a_bzrdir):
788
"""Return the format for the repository object in a_bzrdir."""
790
transport = a_bzrdir.get_repository_transport(None)
791
format_string = transport.get("format").read()
792
return klass._formats[format_string]
793
except errors.NoSuchFile:
794
raise errors.NoRepositoryPresent(a_bzrdir)
796
raise errors.UnknownFormatError(format_string)
798
def _get_control_store(self, repo_transport, control_files):
799
"""Return the control store for this repository."""
800
raise NotImplementedError(self._get_control_store)
803
def get_default_format(klass):
804
"""Return the current default format."""
805
return klass._default_format
807
def get_format_string(self):
808
"""Return the ASCII format string that identifies this format.
810
Note that in pre format ?? repositories the format string is
811
not permitted nor written to disk.
813
raise NotImplementedError(self.get_format_string)
815
def _get_revision_store(self, repo_transport, control_files):
816
"""Return the revision store object for this a_bzrdir."""
817
raise NotImplementedError(self._get_revision_store)
819
def _get_text_rev_store(self,
826
"""Common logic for getting a revision store for a repository.
828
see self._get_revision_store for the subclass-overridable method to
829
get the store for a repository.
831
from bzrlib.store.revision.text import TextRevisionStore
832
dir_mode = control_files._dir_mode
833
file_mode = control_files._file_mode
834
text_store =TextStore(transport.clone(name),
836
compressed=compressed,
839
_revision_store = TextRevisionStore(text_store, serializer)
840
return _revision_store
842
def _get_versioned_file_store(self,
847
versionedfile_class=WeaveFile):
848
weave_transport = control_files._transport.clone(name)
849
dir_mode = control_files._dir_mode
850
file_mode = control_files._file_mode
851
return VersionedFileStore(weave_transport, prefixed=prefixed,
854
versionedfile_class=versionedfile_class)
856
def initialize(self, a_bzrdir, shared=False):
857
"""Initialize a repository of this format in a_bzrdir.
859
:param a_bzrdir: The bzrdir to put the new repository in it.
860
:param shared: The repository should be initialized as a sharable one.
862
This may raise UninitializableFormat if shared repository are not
863
compatible the a_bzrdir.
866
def is_supported(self):
867
"""Is this format supported?
869
Supported formats must be initializable and openable.
870
Unsupported formats may not support initialization or committing or
871
some other features depending on the reason for not being supported.
875
def open(self, a_bzrdir, _found=False):
876
"""Return an instance of this format for the bzrdir a_bzrdir.
878
_found is a private parameter, do not use it.
880
raise NotImplementedError(self.open)
883
def register_format(klass, format):
884
klass._formats[format.get_format_string()] = format
887
def set_default_format(klass, format):
888
klass._default_format = format
891
def unregister_format(klass, format):
892
assert klass._formats[format.get_format_string()] is format
893
del klass._formats[format.get_format_string()]
896
class PreSplitOutRepositoryFormat(RepositoryFormat):
897
"""Base class for the pre split out repository formats."""
899
def initialize(self, a_bzrdir, shared=False, _internal=False):
900
"""Create a weave repository.
902
TODO: when creating split out bzr branch formats, move this to a common
903
base for Format5, Format6. or something like that.
905
from bzrlib.weavefile import write_weave_v5
906
from bzrlib.weave import Weave
909
raise errors.IncompatibleFormat(self, a_bzrdir._format)
912
# always initialized when the bzrdir is.
913
return self.open(a_bzrdir, _found=True)
915
# Create an empty weave
917
bzrlib.weavefile.write_weave_v5(Weave(), sio)
918
empty_weave = sio.getvalue()
920
mutter('creating repository in %s.', a_bzrdir.transport.base)
921
dirs = ['revision-store', 'weaves']
922
files = [('inventory.weave', StringIO(empty_weave)),
925
# FIXME: RBC 20060125 dont peek under the covers
926
# NB: no need to escape relative paths that are url safe.
927
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
929
control_files.create_lock()
930
control_files.lock_write()
931
control_files._transport.mkdir_multi(dirs,
932
mode=control_files._dir_mode)
934
for file, content in files:
935
control_files.put(file, content)
937
control_files.unlock()
938
return self.open(a_bzrdir, _found=True)
940
def _get_control_store(self, repo_transport, control_files):
941
"""Return the control store for this repository."""
942
return self._get_versioned_file_store('',
947
def _get_text_store(self, transport, control_files):
948
"""Get a store for file texts for this format."""
949
raise NotImplementedError(self._get_text_store)
951
def open(self, a_bzrdir, _found=False):
952
"""See RepositoryFormat.open()."""
954
# we are being called directly and must probe.
955
raise NotImplementedError
957
repo_transport = a_bzrdir.get_repository_transport(None)
958
control_files = a_bzrdir._control_files
959
text_store = self._get_text_store(repo_transport, control_files)
960
control_store = self._get_control_store(repo_transport, control_files)
961
_revision_store = self._get_revision_store(repo_transport, control_files)
962
return AllInOneRepository(_format=self,
964
_revision_store=_revision_store,
965
control_store=control_store,
966
text_store=text_store)
969
class RepositoryFormat4(PreSplitOutRepositoryFormat):
970
"""Bzr repository format 4.
972
This repository format has:
974
- TextStores for texts, inventories,revisions.
976
This format is deprecated: it indexes texts using a text id which is
977
removed in format 5; initializationa and write support for this format
982
super(RepositoryFormat4, self).__init__()
983
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
985
def initialize(self, url, shared=False, _internal=False):
986
"""Format 4 branches cannot be created."""
987
raise errors.UninitializableFormat(self)
989
def is_supported(self):
990
"""Format 4 is not supported.
992
It is not supported because the model changed from 4 to 5 and the
993
conversion logic is expensive - so doing it on the fly was not
998
def _get_control_store(self, repo_transport, control_files):
999
"""Format 4 repositories have no formal control store at this point.
1001
This will cause any control-file-needing apis to fail - this is desired.
1005
def _get_revision_store(self, repo_transport, control_files):
1006
"""See RepositoryFormat._get_revision_store()."""
1007
from bzrlib.xml4 import serializer_v4
1008
return self._get_text_rev_store(repo_transport,
1011
serializer=serializer_v4)
1013
def _get_text_store(self, transport, control_files):
1014
"""See RepositoryFormat._get_text_store()."""
1017
class RepositoryFormat5(PreSplitOutRepositoryFormat):
1018
"""Bzr control format 5.
1020
This repository format has:
1021
- weaves for file texts and inventory
1023
- TextStores for revisions and signatures.
1027
super(RepositoryFormat5, self).__init__()
1028
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
1030
def _get_revision_store(self, repo_transport, control_files):
1031
"""See RepositoryFormat._get_revision_store()."""
1032
"""Return the revision store object for this a_bzrdir."""
1033
return self._get_text_rev_store(repo_transport,
1038
def _get_text_store(self, transport, control_files):
1039
"""See RepositoryFormat._get_text_store()."""
1040
return self._get_versioned_file_store('weaves', transport, control_files, prefixed=False)
1043
class RepositoryFormat6(PreSplitOutRepositoryFormat):
1044
"""Bzr control format 6.
1046
This repository format has:
1047
- weaves for file texts and inventory
1048
- hash subdirectory based stores.
1049
- TextStores for revisions and signatures.
1053
super(RepositoryFormat6, self).__init__()
1054
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
1056
def _get_revision_store(self, repo_transport, control_files):
1057
"""See RepositoryFormat._get_revision_store()."""
1058
return self._get_text_rev_store(repo_transport,
1064
def _get_text_store(self, transport, control_files):
1065
"""See RepositoryFormat._get_text_store()."""
1066
return self._get_versioned_file_store('weaves', transport, control_files)
1069
class MetaDirRepositoryFormat(RepositoryFormat):
1070
"""Common base class for the new repositories using the metadir layour."""
1073
super(MetaDirRepositoryFormat, self).__init__()
1074
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
1076
def _create_control_files(self, a_bzrdir):
1077
"""Create the required files and the initial control_files object."""
1078
# FIXME: RBC 20060125 dont peek under the covers
1079
# NB: no need to escape relative paths that are url safe.
1080
repository_transport = a_bzrdir.get_repository_transport(self)
1081
control_files = LockableFiles(repository_transport, 'lock', LockDir)
1082
control_files.create_lock()
1083
return control_files
1085
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
1086
"""Upload the initial blank content."""
1087
control_files = self._create_control_files(a_bzrdir)
1088
control_files.lock_write()
1090
control_files._transport.mkdir_multi(dirs,
1091
mode=control_files._dir_mode)
1092
for file, content in files:
1093
control_files.put(file, content)
1094
for file, content in utf8_files:
1095
control_files.put_utf8(file, content)
1097
control_files.put_utf8('shared-storage', '')
1099
control_files.unlock()
1102
class RepositoryFormat7(MetaDirRepositoryFormat):
1103
"""Bzr repository 7.
1105
This repository format has:
1106
- weaves for file texts and inventory
1107
- hash subdirectory based stores.
1108
- TextStores for revisions and signatures.
1109
- a format marker of its own
1110
- an optional 'shared-storage' flag
1111
- an optional 'no-working-trees' flag
1114
def _get_control_store(self, repo_transport, control_files):
1115
"""Return the control store for this repository."""
1116
return self._get_versioned_file_store('',
1121
def get_format_string(self):
1122
"""See RepositoryFormat.get_format_string()."""
1123
return "Bazaar-NG Repository format 7"
1125
def _get_revision_store(self, repo_transport, control_files):
1126
"""See RepositoryFormat._get_revision_store()."""
1127
return self._get_text_rev_store(repo_transport,
1134
def _get_text_store(self, transport, control_files):
1135
"""See RepositoryFormat._get_text_store()."""
1136
return self._get_versioned_file_store('weaves',
1140
def initialize(self, a_bzrdir, shared=False):
1141
"""Create a weave repository.
1143
:param shared: If true the repository will be initialized as a shared
1146
from bzrlib.weavefile import write_weave_v5
1147
from bzrlib.weave import Weave
1149
# Create an empty weave
1151
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1152
empty_weave = sio.getvalue()
1154
mutter('creating repository in %s.', a_bzrdir.transport.base)
1155
dirs = ['revision-store', 'weaves']
1156
files = [('inventory.weave', StringIO(empty_weave)),
1158
utf8_files = [('format', self.get_format_string())]
1160
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1161
return self.open(a_bzrdir=a_bzrdir, _found=True)
1163
def open(self, a_bzrdir, _found=False, _override_transport=None):
1164
"""See RepositoryFormat.open().
1166
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1167
repository at a slightly different url
1168
than normal. I.e. during 'upgrade'.
1171
format = RepositoryFormat.find_format(a_bzrdir)
1172
assert format.__class__ == self.__class__
1173
if _override_transport is not None:
1174
repo_transport = _override_transport
1176
repo_transport = a_bzrdir.get_repository_transport(None)
1177
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1178
text_store = self._get_text_store(repo_transport, control_files)
1179
control_store = self._get_control_store(repo_transport, control_files)
1180
_revision_store = self._get_revision_store(repo_transport, control_files)
1181
return MetaDirRepository(_format=self,
1183
control_files=control_files,
1184
_revision_store=_revision_store,
1185
control_store=control_store,
1186
text_store=text_store)
1189
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1190
"""Bzr repository knit format 1.
1192
This repository format has:
1193
- knits for file texts and inventory
1194
- hash subdirectory based stores.
1195
- knits for revisions and signatures
1196
- TextStores for revisions and signatures.
1197
- a format marker of its own
1198
- an optional 'shared-storage' flag
1199
- an optional 'no-working-trees' flag
1203
def _get_control_store(self, repo_transport, control_files):
1204
"""Return the control store for this repository."""
1205
return self._get_versioned_file_store('',
1209
versionedfile_class=KnitVersionedFile)
1211
def get_format_string(self):
1212
"""See RepositoryFormat.get_format_string()."""
1213
return "Bazaar-NG Knit Repository Format 1"
1215
def _get_revision_store(self, repo_transport, control_files):
1216
"""See RepositoryFormat._get_revision_store()."""
1217
from bzrlib.store.revision.knit import KnitRevisionStore
1218
versioned_file_store = VersionedFileStore(
1220
file_mode = control_files._file_mode,
1223
versionedfile_class=KnitVersionedFile)
1224
return KnitRevisionStore(versioned_file_store)
1226
def _get_text_store(self, transport, control_files):
1227
"""See RepositoryFormat._get_text_store()."""
1228
return self._get_versioned_file_store('knits',
1231
versionedfile_class=KnitVersionedFile)
1233
def initialize(self, a_bzrdir, shared=False):
1234
"""Create a knit format 1 repository.
1236
:param shared: If true the repository will be initialized as a shared
1238
XXX NOTE that this current uses a Weave for testing and will become
1239
A Knit in due course.
1241
from bzrlib.weavefile import write_weave_v5
1242
from bzrlib.weave import Weave
1244
# Create an empty weave
1246
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1247
empty_weave = sio.getvalue()
1249
mutter('creating repository in %s.', a_bzrdir.transport.base)
1250
dirs = ['revision-store', 'knits', 'control']
1251
files = [('control/inventory.weave', StringIO(empty_weave)),
1253
utf8_files = [('format', self.get_format_string())]
1255
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1256
repo_transport = a_bzrdir.get_repository_transport(None)
1257
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1258
control_store = self._get_control_store(repo_transport, control_files)
1259
transaction = bzrlib.transactions.WriteTransaction()
1260
# trigger a write of the inventory store.
1261
control_store.get_weave_or_empty('inventory', transaction)
1262
_revision_store = self._get_revision_store(repo_transport, control_files)
1263
_revision_store.has_revision_id('A', transaction)
1264
_revision_store.get_signature_file(transaction)
1265
return self.open(a_bzrdir=a_bzrdir, _found=True)
1267
def open(self, a_bzrdir, _found=False, _override_transport=None):
1268
"""See RepositoryFormat.open().
1270
:param _override_transport: INTERNAL USE ONLY. Allows opening the
1271
repository at a slightly different url
1272
than normal. I.e. during 'upgrade'.
1275
format = RepositoryFormat.find_format(a_bzrdir)
1276
assert format.__class__ == self.__class__
1277
if _override_transport is not None:
1278
repo_transport = _override_transport
1280
repo_transport = a_bzrdir.get_repository_transport(None)
1281
control_files = LockableFiles(repo_transport, 'lock', LockDir)
1282
text_store = self._get_text_store(repo_transport, control_files)
1283
control_store = self._get_control_store(repo_transport, control_files)
1284
_revision_store = self._get_revision_store(repo_transport, control_files)
1285
return KnitRepository(_format=self,
1287
control_files=control_files,
1288
_revision_store=_revision_store,
1289
control_store=control_store,
1290
text_store=text_store)
1293
# formats which have no format string are not discoverable
1294
# and not independently creatable, so are not registered.
1295
_default_format = RepositoryFormat7()
1296
RepositoryFormat.register_format(_default_format)
1297
RepositoryFormat.register_format(RepositoryFormatKnit1())
1298
RepositoryFormat.set_default_format(_default_format)
1299
_legacy_formats = [RepositoryFormat4(),
1300
RepositoryFormat5(),
1301
RepositoryFormat6()]
1304
class InterRepository(InterObject):
1305
"""This class represents operations taking place between two repositories.
1307
Its instances have methods like copy_content and fetch, and contain
1308
references to the source and target repositories these operations can be
1311
Often we will provide convenience methods on 'repository' which carry out
1312
operations with another repository - they will always forward to
1313
InterRepository.get(other).method_name(parameters).
1317
"""The available optimised InterRepository types."""
1320
def copy_content(self, revision_id=None, basis=None):
1321
"""Make a complete copy of the content in self into destination.
1323
This is a destructive operation! Do not use it on existing
1326
:param revision_id: Only copy the content needed to construct
1327
revision_id and its parents.
1328
:param basis: Copy the needed data preferentially from basis.
1331
self.target.set_make_working_trees(self.source.make_working_trees())
1332
except NotImplementedError:
1334
# grab the basis available data
1335
if basis is not None:
1336
self.target.fetch(basis, revision_id=revision_id)
1337
# but dont bother fetching if we have the needed data now.
1338
if (revision_id not in (None, NULL_REVISION) and
1339
self.target.has_revision(revision_id)):
1341
self.target.fetch(self.source, revision_id=revision_id)
1343
def _double_lock(self, lock_source, lock_target):
1344
"""Take out too locks, rolling back the first if the second throws."""
1349
# we want to ensure that we don't leave source locked by mistake.
1350
# and any error on target should not confuse source.
1351
self.source.unlock()
1355
def fetch(self, revision_id=None, pb=None):
1356
"""Fetch the content required to construct revision_id.
1358
The content is copied from source to target.
1360
:param revision_id: if None all content is copied, if NULL_REVISION no
1362
:param pb: optional progress bar to use for progress reports. If not
1363
provided a default one will be created.
1365
Returns the copied revision count and the failed revisions in a tuple:
1368
from bzrlib.fetch import GenericRepoFetcher
1369
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1370
self.source, self.source._format, self.target, self.target._format)
1371
f = GenericRepoFetcher(to_repository=self.target,
1372
from_repository=self.source,
1373
last_revision=revision_id,
1375
return f.count_copied, f.failed_revisions
1377
def lock_read(self):
1378
"""Take out a logical read lock.
1380
This will lock the source branch and the target branch. The source gets
1381
a read lock and the target a read lock.
1383
self._double_lock(self.source.lock_read, self.target.lock_read)
1385
def lock_write(self):
1386
"""Take out a logical write lock.
1388
This will lock the source branch and the target branch. The source gets
1389
a read lock and the target a write lock.
1391
self._double_lock(self.source.lock_read, self.target.lock_write)
1394
def missing_revision_ids(self, revision_id=None):
1395
"""Return the revision ids that source has that target does not.
1397
These are returned in topological order.
1399
:param revision_id: only return revision ids included by this
1402
# generic, possibly worst case, slow code path.
1403
target_ids = set(self.target.all_revision_ids())
1404
if revision_id is not None:
1405
source_ids = self.source.get_ancestry(revision_id)
1406
assert source_ids.pop(0) == None
1408
source_ids = self.source.all_revision_ids()
1409
result_set = set(source_ids).difference(target_ids)
1410
# this may look like a no-op: its not. It preserves the ordering
1411
# other_ids had while only returning the members from other_ids
1412
# that we've decided we need.
1413
return [rev_id for rev_id in source_ids if rev_id in result_set]
1416
"""Release the locks on source and target."""
1418
self.target.unlock()
1420
self.source.unlock()
1423
class InterWeaveRepo(InterRepository):
1424
"""Optimised code paths between Weave based repositories."""
1426
_matching_repo_format = _default_format
1427
"""Repository format for testing with."""
1430
def is_compatible(source, target):
1431
"""Be compatible with known Weave formats.
1433
We dont test for the stores being of specific types becase that
1434
could lead to confusing results, and there is no need to be
1438
return (isinstance(source._format, (RepositoryFormat5,
1440
RepositoryFormat7)) and
1441
isinstance(target._format, (RepositoryFormat5,
1443
RepositoryFormat7)))
1444
except AttributeError:
1448
def copy_content(self, revision_id=None, basis=None):
1449
"""See InterRepository.copy_content()."""
1450
# weave specific optimised path:
1451
if basis is not None:
1452
# copy the basis in, then fetch remaining data.
1453
basis.copy_content_into(self.target, revision_id)
1454
# the basis copy_content_into could misset this.
1456
self.target.set_make_working_trees(self.source.make_working_trees())
1457
except NotImplementedError:
1459
self.target.fetch(self.source, revision_id=revision_id)
1462
self.target.set_make_working_trees(self.source.make_working_trees())
1463
except NotImplementedError:
1465
# FIXME do not peek!
1466
if self.source.control_files._transport.listable():
1467
pb = bzrlib.ui.ui_factory.nested_progress_bar()
1469
self.target.weave_store.copy_all_ids(
1470
self.source.weave_store,
1472
from_transaction=self.source.get_transaction(),
1473
to_transaction=self.target.get_transaction())
1474
pb.update('copying inventory', 0, 1)
1475
self.target.control_weaves.copy_multi(
1476
self.source.control_weaves, ['inventory'],
1477
from_transaction=self.source.get_transaction(),
1478
to_transaction=self.target.get_transaction())
1479
self.target._revision_store.text_store.copy_all_ids(
1480
self.source._revision_store.text_store,
1485
self.target.fetch(self.source, revision_id=revision_id)
1488
def fetch(self, revision_id=None, pb=None):
1489
"""See InterRepository.fetch()."""
1490
from bzrlib.fetch import GenericRepoFetcher
1491
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1492
self.source, self.source._format, self.target, self.target._format)
1493
f = GenericRepoFetcher(to_repository=self.target,
1494
from_repository=self.source,
1495
last_revision=revision_id,
1497
return f.count_copied, f.failed_revisions
1500
def missing_revision_ids(self, revision_id=None):
1501
"""See InterRepository.missing_revision_ids()."""
1502
# we want all revisions to satisfy revision_id in source.
1503
# but we dont want to stat every file here and there.
1504
# we want then, all revisions other needs to satisfy revision_id
1505
# checked, but not those that we have locally.
1506
# so the first thing is to get a subset of the revisions to
1507
# satisfy revision_id in source, and then eliminate those that
1508
# we do already have.
1509
# this is slow on high latency connection to self, but as as this
1510
# disk format scales terribly for push anyway due to rewriting
1511
# inventory.weave, this is considered acceptable.
1513
if revision_id is not None:
1514
source_ids = self.source.get_ancestry(revision_id)
1515
assert source_ids.pop(0) == None
1517
source_ids = self.source._all_possible_ids()
1518
source_ids_set = set(source_ids)
1519
# source_ids is the worst possible case we may need to pull.
1520
# now we want to filter source_ids against what we actually
1521
# have in target, but dont try to check for existence where we know
1522
# we do not have a revision as that would be pointless.
1523
target_ids = set(self.target._all_possible_ids())
1524
possibly_present_revisions = target_ids.intersection(source_ids_set)
1525
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1526
required_revisions = source_ids_set.difference(actually_present_revisions)
1527
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1528
if revision_id is not None:
1529
# we used get_ancestry to determine source_ids then we are assured all
1530
# revisions referenced are present as they are installed in topological order.
1531
# and the tip revision was validated by get_ancestry.
1532
return required_topo_revisions
1534
# if we just grabbed the possibly available ids, then
1535
# we only have an estimate of whats available and need to validate
1536
# that against the revision records.
1537
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1540
class InterKnitRepo(InterRepository):
1541
"""Optimised code paths between Knit based repositories."""
1543
_matching_repo_format = RepositoryFormatKnit1()
1544
"""Repository format for testing with."""
1547
def is_compatible(source, target):
1548
"""Be compatible with known Knit formats.
1550
We dont test for the stores being of specific types becase that
1551
could lead to confusing results, and there is no need to be
1555
return (isinstance(source._format, (RepositoryFormatKnit1)) and
1556
isinstance(target._format, (RepositoryFormatKnit1)))
1557
except AttributeError:
1561
def fetch(self, revision_id=None, pb=None):
1562
"""See InterRepository.fetch()."""
1563
from bzrlib.fetch import KnitRepoFetcher
1564
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1565
self.source, self.source._format, self.target, self.target._format)
1566
f = KnitRepoFetcher(to_repository=self.target,
1567
from_repository=self.source,
1568
last_revision=revision_id,
1570
return f.count_copied, f.failed_revisions
1573
def missing_revision_ids(self, revision_id=None):
1574
"""See InterRepository.missing_revision_ids()."""
1575
if revision_id is not None:
1576
source_ids = self.source.get_ancestry(revision_id)
1577
assert source_ids.pop(0) == None
1579
source_ids = self.source._all_possible_ids()
1580
source_ids_set = set(source_ids)
1581
# source_ids is the worst possible case we may need to pull.
1582
# now we want to filter source_ids against what we actually
1583
# have in target, but dont try to check for existence where we know
1584
# we do not have a revision as that would be pointless.
1585
target_ids = set(self.target._all_possible_ids())
1586
possibly_present_revisions = target_ids.intersection(source_ids_set)
1587
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1588
required_revisions = source_ids_set.difference(actually_present_revisions)
1589
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1590
if revision_id is not None:
1591
# we used get_ancestry to determine source_ids then we are assured all
1592
# revisions referenced are present as they are installed in topological order.
1593
# and the tip revision was validated by get_ancestry.
1594
return required_topo_revisions
1596
# if we just grabbed the possibly available ids, then
1597
# we only have an estimate of whats available and need to validate
1598
# that against the revision records.
1599
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1601
InterRepository.register_optimiser(InterWeaveRepo)
1602
InterRepository.register_optimiser(InterKnitRepo)
1605
class RepositoryTestProviderAdapter(object):
1606
"""A tool to generate a suite testing multiple repository formats at once.
1608
This is done by copying the test once for each transport and injecting
1609
the transport_server, transport_readonly_server, and bzrdir_format and
1610
repository_format classes into each copy. Each copy is also given a new id()
1611
to make it easy to identify.
1614
def __init__(self, transport_server, transport_readonly_server, formats):
1615
self._transport_server = transport_server
1616
self._transport_readonly_server = transport_readonly_server
1617
self._formats = formats
1619
def adapt(self, test):
1620
result = TestSuite()
1621
for repository_format, bzrdir_format in self._formats:
1622
new_test = deepcopy(test)
1623
new_test.transport_server = self._transport_server
1624
new_test.transport_readonly_server = self._transport_readonly_server
1625
new_test.bzrdir_format = bzrdir_format
1626
new_test.repository_format = repository_format
1627
def make_new_test_id():
1628
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1629
return lambda: new_id
1630
new_test.id = make_new_test_id()
1631
result.addTest(new_test)
1635
class InterRepositoryTestProviderAdapter(object):
1636
"""A tool to generate a suite testing multiple inter repository formats.
1638
This is done by copying the test once for each interrepo provider and injecting
1639
the transport_server, transport_readonly_server, repository_format and
1640
repository_to_format classes into each copy.
1641
Each copy is also given a new id() to make it easy to identify.
1644
def __init__(self, transport_server, transport_readonly_server, formats):
1645
self._transport_server = transport_server
1646
self._transport_readonly_server = transport_readonly_server
1647
self._formats = formats
1649
def adapt(self, test):
1650
result = TestSuite()
1651
for interrepo_class, repository_format, repository_format_to in self._formats:
1652
new_test = deepcopy(test)
1653
new_test.transport_server = self._transport_server
1654
new_test.transport_readonly_server = self._transport_readonly_server
1655
new_test.interrepo_class = interrepo_class
1656
new_test.repository_format = repository_format
1657
new_test.repository_format_to = repository_format_to
1658
def make_new_test_id():
1659
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1660
return lambda: new_id
1661
new_test.id = make_new_test_id()
1662
result.addTest(new_test)
1666
def default_test_list():
1667
"""Generate the default list of interrepo permutations to test."""
1669
# test the default InterRepository between format 6 and the current
1671
# XXX: robertc 20060220 reinstate this when there are two supported
1672
# formats which do not have an optimal code path between them.
1673
result.append((InterRepository,
1674
RepositoryFormat6(),
1675
RepositoryFormatKnit1()))
1676
for optimiser in InterRepository._optimisers:
1677
result.append((optimiser,
1678
optimiser._matching_repo_format,
1679
optimiser._matching_repo_format
1681
# if there are specific combinations we want to use, we can add them
1686
class CopyConverter(object):
1687
"""A repository conversion tool which just performs a copy of the content.
1689
This is slow but quite reliable.
1692
def __init__(self, target_format):
1693
"""Create a CopyConverter.
1695
:param target_format: The format the resulting repository should be.
1697
self.target_format = target_format
1699
def convert(self, repo, pb):
1700
"""Perform the conversion of to_convert, giving feedback via pb.
1702
:param to_convert: The disk object to convert.
1703
:param pb: a progress bar to use for progress information.
1708
# this is only useful with metadir layouts - separated repo content.
1709
# trigger an assertion if not such
1710
repo._format.get_format_string()
1711
self.repo_dir = repo.bzrdir
1712
self.step('Moving repository to repository.backup')
1713
self.repo_dir.transport.move('repository', 'repository.backup')
1714
backup_transport = self.repo_dir.transport.clone('repository.backup')
1715
self.source_repo = repo._format.open(self.repo_dir,
1717
_override_transport=backup_transport)
1718
self.step('Creating new repository')
1719
converted = self.target_format.initialize(self.repo_dir,
1720
self.source_repo.is_shared())
1721
converted.lock_write()
1723
self.step('Copying content into repository.')
1724
self.source_repo.copy_content_into(converted)
1727
self.step('Deleting old repository content.')
1728
self.repo_dir.transport.delete_tree('repository.backup')
1729
self.pb.note('repository converted')
1731
def step(self, message):
1732
"""Update the pb by a step."""
1734
self.pb.update(message, self.count, self.total)
1737
# Copied from xml.sax.saxutils
1738
def _unescape_xml(data):
1739
"""Unescape &, <, and > in a string of data.
1741
data = data.replace("<", "<")
1742
data = data.replace(">", ">")
1743
# must do ampersand last
1744
return data.replace("&", "&")