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# Copyright (C) 2005, 2006, 2007, 2008 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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"""Deprecated weave-based repository formats.
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Weave based formats scaled linearly with history size and could not represent
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from cStringIO import StringIO
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revision as _mod_revision,
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.repository import (
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MetaDirVersionedFileRepository,
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MetaDirRepositoryFormat,
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from bzrlib.store.text import TextStore
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from bzrlib.trace import mutter
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from bzrlib.tuned_gzip import GzipFile, bytes_to_gzip
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from bzrlib.versionedfile import (
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FulltextContentFactory,
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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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_serializer = xml5.serializer_v5
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def __init__(self, _format, a_bzrdir):
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# we reuse one control files instance.
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dir_mode = a_bzrdir._get_dir_mode()
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file_mode = a_bzrdir._get_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.transport.clone(relpath),
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prefixed=prefixed, compressed=compressed,
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# not broken out yet because the controlweaves|inventory_store
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# and texts 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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self._text_store = get_store('text-store')
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super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files)
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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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if 'evil' in debug.debug_flags:
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mutter_callsite(3, "_all_possible_ids scales with size of history.")
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return [key[-1] for key in self.inventories.keys()]
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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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return [key[-1] for key in self.revisions.keys()]
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def _activate_new_inventory(self):
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"""Put a replacement inventory.new into use as inventories."""
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# Copy the content across
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t = self.bzrdir._control_files._transport
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t.copy('inventory.new.weave', 'inventory.weave')
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# delete the temp inventory
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t.delete('inventory.new.weave')
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# Check we can parse the new weave properly as a sanity check
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self.inventories.keys()
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def _backup_inventory(self):
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t = self.bzrdir._control_files._transport
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t.copy('inventory.weave', 'inventory.backup.weave')
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def _temp_inventories(self):
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t = self.bzrdir._control_files._transport
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return self._format._get_inventories(t, self, 'inventory.new')
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def get_commit_builder(self, branch, parents, config, timestamp=None,
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timezone=None, committer=None, revprops=None,
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self._check_ascii_revisionid(revision_id, self.get_commit_builder)
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result = CommitBuilder(self, parents, config, timestamp, timezone,
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committer, revprops, revision_id)
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self.start_write_group()
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def get_revisions(self, revision_ids):
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revs = self._get_revisions(revision_ids)
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def _inventory_add_lines(self, revision_id, parents, lines,
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"""Store lines in inv_vf and return the sha1 of the inventory."""
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present_parents = self.get_graph().get_parent_map(parents)
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for parent in parents:
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if parent in present_parents:
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final_parents.append((parent,))
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return self.inventories.add_lines((revision_id,), final_parents, lines,
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check_content=check_content)[0]
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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 errors.RepositoryUpgradeRequired(self.bzrdir.root_transport.base)
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def make_working_trees(self):
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"""Returns the policy for making working trees on new branches."""
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def revision_graph_can_have_wrong_parents(self):
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# XXX: This is an old format that we don't support full checking on, so
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# just claim that checking for this inconsistency is not required.
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class WeaveMetaDirRepository(MetaDirVersionedFileRepository):
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"""A subclass of MetaDirRepository to set weave specific policy."""
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_serializer = xml5.serializer_v5
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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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if 'evil' in debug.debug_flags:
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mutter_callsite(3, "_all_possible_ids scales with size of history.")
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return [key[-1] for key in self.inventories.keys()]
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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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return [key[-1] for key in self.revisions.keys()]
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def _activate_new_inventory(self):
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"""Put a replacement inventory.new into use as inventories."""
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# Copy the content across
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t.copy('inventory.new.weave', 'inventory.weave')
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# delete the temp inventory
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t.delete('inventory.new.weave')
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# Check we can parse the new weave properly as a sanity check
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self.inventories.keys()
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def _backup_inventory(self):
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t.copy('inventory.weave', 'inventory.backup.weave')
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def _temp_inventories(self):
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return self._format._get_inventories(t, self, 'inventory.new')
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def get_commit_builder(self, branch, parents, config, timestamp=None,
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timezone=None, committer=None, revprops=None,
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self._check_ascii_revisionid(revision_id, self.get_commit_builder)
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result = CommitBuilder(self, parents, config, timestamp, timezone,
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committer, revprops, revision_id)
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self.start_write_group()
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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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def _inventory_add_lines(self, revision_id, parents, lines,
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"""Store lines in inv_vf and return the sha1 of the inventory."""
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present_parents = self.get_graph().get_parent_map(parents)
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for parent in parents:
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if parent in present_parents:
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final_parents.append((parent,))
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return self.inventories.add_lines((revision_id,), final_parents, lines,
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check_content=check_content)[0]
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def revision_graph_can_have_wrong_parents(self):
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class PreSplitOutRepositoryFormat(RepositoryFormat):
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"""Base class for the pre split out repository formats."""
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rich_root_data = False
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supports_tree_reference = False
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supports_ghosts = False
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supports_external_lookups = False
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def initialize(self, a_bzrdir, shared=False, _internal=False):
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"""Create a weave repository."""
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raise errors.IncompatibleFormat(self, a_bzrdir._format)
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# always initialized when the bzrdir is.
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return self.open(a_bzrdir, _found=True)
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# Create an empty weave
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weavefile.write_weave_v5(weave.Weave(), sio)
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empty_weave = sio.getvalue()
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mutter('creating repository in %s.', a_bzrdir.transport.base)
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# FIXME: RBC 20060125 don't peek under the covers
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# NB: no need to escape relative paths that are url safe.
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control_files = lockable_files.LockableFiles(a_bzrdir.transport,
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'branch-lock', lockable_files.TransportLock)
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control_files.create_lock()
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control_files.lock_write()
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transport = a_bzrdir.transport
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transport.mkdir_multi(['revision-store', 'weaves'],
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mode=a_bzrdir._get_dir_mode())
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transport.put_bytes_non_atomic('inventory.weave', empty_weave)
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control_files.unlock()
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return self.open(a_bzrdir, _found=True)
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def open(self, a_bzrdir, _found=False):
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"""See RepositoryFormat.open()."""
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# we are being called directly and must probe.
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raise NotImplementedError
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repo_transport = a_bzrdir.get_repository_transport(None)
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control_files = a_bzrdir._control_files
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result = AllInOneRepository(_format=self, a_bzrdir=a_bzrdir)
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result.revisions = self._get_revisions(repo_transport, result)
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result.signatures = self._get_signatures(repo_transport, result)
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result.inventories = self._get_inventories(repo_transport, result)
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result.texts = self._get_texts(repo_transport, result)
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def check_conversion_target(self, target_format):
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class RepositoryFormat4(PreSplitOutRepositoryFormat):
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"""Bzr repository format 4.
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This repository format has:
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- TextStores for texts, inventories,revisions.
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This format is deprecated: it indexes texts using a text id which is
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removed in format 5; initialization and write support for this format
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_matchingbzrdir = bzrdir.BzrDirFormat4()
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super(RepositoryFormat4, self).__init__()
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def get_format_description(self):
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"""See RepositoryFormat.get_format_description()."""
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return "Repository format 4"
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def initialize(self, url, shared=False, _internal=False):
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"""Format 4 branches cannot be created."""
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raise errors.UninitializableFormat(self)
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def is_supported(self):
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"""Format 4 is not supported.
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It is not supported because the model changed from 4 to 5 and the
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conversion logic is expensive - so doing it on the fly was not
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def _get_inventories(self, repo_transport, repo, name='inventory'):
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# No inventories store written so far.
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def _get_revisions(self, repo_transport, repo):
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from bzrlib.xml4 import serializer_v4
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return RevisionTextStore(repo_transport.clone('revision-store'),
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serializer_v4, True, versionedfile.PrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_signatures(self, repo_transport, repo):
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return SignatureTextStore(repo_transport.clone('revision-store'),
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False, versionedfile.PrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_texts(self, repo_transport, repo):
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class RepositoryFormat5(PreSplitOutRepositoryFormat):
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"""Bzr control format 5.
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This repository format has:
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- weaves for file texts and inventory
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- TextStores for revisions and signatures.
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_versionedfile_class = weave.WeaveFile
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_matchingbzrdir = bzrdir.BzrDirFormat5()
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super(RepositoryFormat5, self).__init__()
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def get_format_description(self):
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"""See RepositoryFormat.get_format_description()."""
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return "Weave repository format 5"
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def _get_inventories(self, repo_transport, repo, name='inventory'):
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mapper = versionedfile.ConstantMapper(name)
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return versionedfile.ThunkedVersionedFiles(repo_transport,
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weave.WeaveFile, mapper, repo.is_locked)
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def _get_revisions(self, repo_transport, repo):
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from bzrlib.xml5 import serializer_v5
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return RevisionTextStore(repo_transport.clone('revision-store'),
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serializer_v5, False, versionedfile.PrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_signatures(self, repo_transport, repo):
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return SignatureTextStore(repo_transport.clone('revision-store'),
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False, versionedfile.PrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_texts(self, repo_transport, repo):
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mapper = versionedfile.PrefixMapper()
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base_transport = repo_transport.clone('weaves')
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return versionedfile.ThunkedVersionedFiles(base_transport,
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weave.WeaveFile, mapper, repo.is_locked)
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class RepositoryFormat6(PreSplitOutRepositoryFormat):
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"""Bzr control format 6.
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This repository format has:
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- weaves for file texts and inventory
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- hash subdirectory based stores.
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- TextStores for revisions and signatures.
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_versionedfile_class = weave.WeaveFile
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_matchingbzrdir = bzrdir.BzrDirFormat6()
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super(RepositoryFormat6, self).__init__()
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def get_format_description(self):
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"""See RepositoryFormat.get_format_description()."""
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return "Weave repository format 6"
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def _get_inventories(self, repo_transport, repo, name='inventory'):
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mapper = versionedfile.ConstantMapper(name)
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return versionedfile.ThunkedVersionedFiles(repo_transport,
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weave.WeaveFile, mapper, repo.is_locked)
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def _get_revisions(self, repo_transport, repo):
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from bzrlib.xml5 import serializer_v5
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return RevisionTextStore(repo_transport.clone('revision-store'),
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serializer_v5, False, versionedfile.HashPrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_signatures(self, repo_transport, repo):
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return SignatureTextStore(repo_transport.clone('revision-store'),
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False, versionedfile.HashPrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_texts(self, repo_transport, repo):
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mapper = versionedfile.HashPrefixMapper()
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base_transport = repo_transport.clone('weaves')
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return versionedfile.ThunkedVersionedFiles(base_transport,
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weave.WeaveFile, mapper, repo.is_locked)
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class RepositoryFormat7(MetaDirRepositoryFormat):
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This repository format has:
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- weaves for file texts and inventory
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- hash subdirectory based stores.
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- TextStores for revisions and signatures.
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- a format marker of its own
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- an optional 'shared-storage' flag
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- an optional 'no-working-trees' flag
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_versionedfile_class = weave.WeaveFile
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supports_ghosts = False
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def get_format_string(self):
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"""See RepositoryFormat.get_format_string()."""
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return "Bazaar-NG Repository format 7"
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def get_format_description(self):
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"""See RepositoryFormat.get_format_description()."""
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return "Weave repository format 7"
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def check_conversion_target(self, target_format):
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def _get_inventories(self, repo_transport, repo, name='inventory'):
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mapper = versionedfile.ConstantMapper(name)
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return versionedfile.ThunkedVersionedFiles(repo_transport,
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weave.WeaveFile, mapper, repo.is_locked)
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def _get_revisions(self, repo_transport, repo):
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from bzrlib.xml5 import serializer_v5
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return RevisionTextStore(repo_transport.clone('revision-store'),
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serializer_v5, True, versionedfile.HashPrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_signatures(self, repo_transport, repo):
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return SignatureTextStore(repo_transport.clone('revision-store'),
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True, versionedfile.HashPrefixMapper(),
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repo.is_locked, repo.is_write_locked)
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def _get_texts(self, repo_transport, repo):
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mapper = versionedfile.HashPrefixMapper()
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base_transport = repo_transport.clone('weaves')
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return versionedfile.ThunkedVersionedFiles(base_transport,
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weave.WeaveFile, mapper, repo.is_locked)
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def initialize(self, a_bzrdir, shared=False):
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"""Create a weave repository.
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:param shared: If true the repository will be initialized as a shared
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# Create an empty weave
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weavefile.write_weave_v5(weave.Weave(), sio)
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empty_weave = sio.getvalue()
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mutter('creating repository in %s.', a_bzrdir.transport.base)
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dirs = ['revision-store', 'weaves']
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files = [('inventory.weave', StringIO(empty_weave)),
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utf8_files = [('format', self.get_format_string())]
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self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
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return self.open(a_bzrdir=a_bzrdir, _found=True)
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def open(self, a_bzrdir, _found=False, _override_transport=None):
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"""See RepositoryFormat.open().
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:param _override_transport: INTERNAL USE ONLY. Allows opening the
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repository at a slightly different url
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than normal. I.e. during 'upgrade'.
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format = RepositoryFormat.find_format(a_bzrdir)
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if _override_transport is not None:
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repo_transport = _override_transport
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repo_transport = a_bzrdir.get_repository_transport(None)
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control_files = lockable_files.LockableFiles(repo_transport,
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'lock', lockdir.LockDir)
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result = WeaveMetaDirRepository(_format=self, a_bzrdir=a_bzrdir,
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control_files=control_files)
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result.revisions = self._get_revisions(repo_transport, result)
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result.signatures = self._get_signatures(repo_transport, result)
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result.inventories = self._get_inventories(repo_transport, result)
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result.texts = self._get_texts(repo_transport, result)
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result._transport = repo_transport
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class TextVersionedFiles(VersionedFiles):
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"""Just-a-bunch-of-files based VersionedFile stores."""
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def __init__(self, transport, compressed, mapper, is_locked, can_write):
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self._compressed = compressed
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self._transport = transport
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self._mapper = mapper
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self._is_locked = is_locked
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self._can_write = can_write
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def add_lines(self, key, parents, lines):
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"""Add a revision to the store."""
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if not self._is_locked():
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raise errors.ObjectNotLocked(self)
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if not self._can_write():
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raise errors.ReadOnlyError(self)
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raise ValueError('bad idea to put / in %r' % (key,))
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text = ''.join(lines)
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text = bytes_to_gzip(text)
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path = self._map(key)
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self._transport.put_bytes_non_atomic(path, text, create_parent_dir=True)
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def insert_record_stream(self, stream):
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for record in stream:
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# Raise an error when a record is missing.
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if record.storage_kind == 'absent':
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raise errors.RevisionNotPresent([record.key[0]], self)
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# adapt to non-tuple interface
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if record.storage_kind == 'fulltext':
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self.add_lines(record.key, None,
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osutils.split_lines(record.get_bytes_as('fulltext')))
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adapter_key = record.storage_kind, 'fulltext'
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adapter = adapters[adapter_key]
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adapter_factory = adapter_registry.get(adapter_key)
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adapter = adapter_factory(self)
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adapters[adapter_key] = adapter
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lines = osutils.split_lines(adapter.get_bytes(
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record, record.get_bytes_as(record.storage_kind)))
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self.add_lines(record.key, None, lines)
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except RevisionAlreadyPresent:
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def _load_text(self, key):
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if not self._is_locked():
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raise errors.ObjectNotLocked(self)
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path = self._map(key)
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text = self._transport.get_bytes(path)
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compressed = self._compressed
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except errors.NoSuchFile:
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# try without the .gz
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text = self._transport.get_bytes(path)
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except errors.NoSuchFile:
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text = GzipFile(mode='rb', fileobj=StringIO(text)).read()
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return self._mapper.map(key) + self._ext
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class RevisionTextStore(TextVersionedFiles):
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"""Legacy thunk for format 4 repositories."""
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def __init__(self, transport, serializer, compressed, mapper, is_locked,
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"""Create a RevisionTextStore at transport with serializer."""
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TextVersionedFiles.__init__(self, transport, compressed, mapper,
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is_locked, can_write)
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self._serializer = serializer
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def _load_text_parents(self, key):
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text = self._load_text(key)
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parents = self._serializer.read_revision_from_string(text).parent_ids
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return text, tuple((parent,) for parent in parents)
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def get_parent_map(self, keys):
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parents = self._load_text_parents(key)[1]
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result[key] = parents
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def get_record_stream(self, keys, sort_order, include_delta_closure):
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text, parents = self._load_text_parents(key)
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yield AbsentContentFactory(key)
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yield FulltextContentFactory(key, parents, None, text)
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if not self._is_locked():
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raise errors.ObjectNotLocked(self)
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for quoted_relpath in self._transport.iter_files_recursive():
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relpath = urllib.unquote(quoted_relpath)
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path, ext = os.path.splitext(relpath)
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if '.sig' not in relpath:
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relpaths.add(relpath)
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paths = list(relpaths)
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return set([self._mapper.unmap(path) for path in paths])
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class SignatureTextStore(TextVersionedFiles):
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"""Legacy thunk for format 4-7 repositories."""
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def __init__(self, transport, compressed, mapper, is_locked, can_write):
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TextVersionedFiles.__init__(self, transport, compressed, mapper,
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is_locked, can_write)
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self._ext = '.sig' + self._ext
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def get_parent_map(self, keys):
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text = self._load_text(key)
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def get_record_stream(self, keys, sort_order, include_delta_closure):
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text = self._load_text(key)
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yield AbsentContentFactory(key)
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yield FulltextContentFactory(key, None, None, text)
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if not self._is_locked():
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raise errors.ObjectNotLocked(self)
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for quoted_relpath in self._transport.iter_files_recursive():
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relpath = urllib.unquote(quoted_relpath)
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path, ext = os.path.splitext(relpath)
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if not relpath.endswith('.sig'):
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relpaths.add(relpath[:-4])
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paths = list(relpaths)
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return set([self._mapper.unmap(path) for path in paths])
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_legacy_formats = [RepositoryFormat4(),
added
removed
bzrlib/repofmt/weaverepo.py
