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- Committer: Martin Pool
- Date: 2006-03-08 03:53:30 UTC
- mto: This revision was merged to the branch mainline in revision 1602.
- Revision ID: mbp@sourcefrog.net-20060308035330-40065f85adc9652e
Add new TestCaseWithTransport.assertIsDirectory() and tests
- files added:
- .bzrignore
- bzrlib
- bzrlib/doc
- bzrlib/doc/api
- bzrlib/export
- bzrlib/plugins
- bzrlib/store
- bzrlib/tests
- bzrlib/tests/blackbox
- bzrlib/tests/branch_implementations
- bzrlib/tests/bzrdir_implementations
- bzrlib/tests/interrepository_implementations
- bzrlib/tests/repository_implementations
- bzrlib/tests/workingtree_implementations
- bzrlib/transport
- bzrlib/ui
- bzrlib/util
- bzrlib/util/configobj
- bzrlib/util/configobj/docs
- bzrlib/util/effbot
- bzrlib/util/effbot/org
- bzrlib/util/elementtree
- bzrlib/util/urlgrabber
- contrib
- contrib/bash
- contrib/emacs
- contrib/zsh
- doc
- notes
- tools
- tools/doc_generate
- files removed:
- .bzrignore
- foreign
- notes
- tests
added
removed
bzrlib/repository.py
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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from copy import deepcopy
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from cStringIO import StringIO
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from unittest import TestSuite
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import xml.sax.saxutils
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import bzrlib.bzrdir as bzrdir
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.errors import InvalidRevisionId
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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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import bzrlib.errors as errors
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import bzrlib.gpg as gpg
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from bzrlib.store import copy_all
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from bzrlib.store.weave import 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.testament import Testament
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from bzrlib.tree import EmptyTree
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import bzrlib.ui
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import bzrlib.xml5
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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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remote) disk.
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"""
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@needs_write_lock
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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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"""
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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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self.control_weaves.add_text('inventory', revid,
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bzrlib.osutils.split_lines(inv_text), parents,
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self.get_transaction())
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return inv_sha1
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@needs_write_lock
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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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"""
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if config is not None and config.signature_needed():
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if inv is None:
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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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if inv is None:
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raise errors.WeaveRevisionNotPresent(rev_id,
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self.get_inventory_weave())
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else:
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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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rev_tmp = StringIO()
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bzrlib.xml5.serializer_v5.write_revision(rev, rev_tmp)
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rev_tmp.seek(0)
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self.revision_store.add(rev_tmp, rev_id)
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mutter('added revision_id {%s}', rev_id)
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@needs_read_lock
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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().names()
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@needs_read_lock
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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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"""
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result = self._all_possible_ids()
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return self._eliminate_revisions_not_present(result)
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@needs_read_lock
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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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"""
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result = []
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for id in revision_ids:
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if self.has_revision(id):
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result.append(id)
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return result
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@staticmethod
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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):
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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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"""
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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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def lock_write(self):
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self.control_files.lock_write()
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def lock_read(self):
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self.control_files.lock_read()
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def is_locked(self):
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return self.control_files.is_locked()
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@needs_read_lock
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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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"""
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return InterRepository.get(other, self).missing_revision_ids(revision_id)
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@staticmethod
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def open(base):
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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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"""
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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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repositories.
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"""
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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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"""
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return InterRepository.get(source, self).fetch(revision_id=revision_id,
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pb=pb)
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def unlock(self):
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self.control_files.unlock()
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@needs_read_lock
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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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"""
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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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else:
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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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return result
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def has_revision(self, revision_id):
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"""True if this branch has a copy of the revision.
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This does not necessarily imply the revision is merge
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or on the mainline."""
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return (revision_id is None
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or self.revision_store.has_id(revision_id))
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@needs_read_lock
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def get_revision_xml_file(self, revision_id):
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"""Return XML file object for revision object."""
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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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try:
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return self.revision_store.get(revision_id)
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except (IndexError, KeyError):
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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@needs_read_lock
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def get_revision_xml(self, revision_id):
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return self.get_revision_xml_file(revision_id).read()
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@needs_read_lock
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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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"""
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xml_file = self.get_revision_xml_file(revision_id)
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try:
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r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
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except SyntaxError, e:
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raise bzrlib.errors.BzrError('failed to unpack revision_xml',
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[revision_id,
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str(e)])
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assert r.revision_id == revision_id
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return r
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@needs_read_lock
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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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# present.
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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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return r
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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.
286
"""
287
weave_parents = inventory.parent_names(revision.revision_id)
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weave_names = inventory.names()
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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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# but it is a ghost
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raise errors.CorruptRepository(self)
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@needs_read_lock
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def get_revision_sha1(self, revision_id):
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"""Hash the stored value of a revision, and return it."""
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# In the future, revision entries will be signed. At that
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# point, it is probably best *not* to include the signature
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# in the revision hash. Because that lets you re-sign
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# the revision, (add signatures/remove signatures) and still
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# have all hash pointers stay consistent.
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# But for now, just hash the contents.
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return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
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@needs_write_lock
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def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
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self.revision_store.add(StringIO(gpg_strategy.sign(plaintext)),
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revision_id, "sig")
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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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"""
318
# TODO: jam 20060119 This code assumes that w.inclusions will
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# always be correct. But because of the presence of ghosts
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# it is possible to be wrong.
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# One specific example from Robert Collins:
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# Two branches, with revisions ABC, and AD
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# C is a ghost merge of D.
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# Inclusions doesn't recognize D as an ancestor.
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# If D is ever merged in the future, the weave
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# won't be fixed, because AD never saw revision C
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# to cause a conflict which would force a reweave.
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w = self.get_inventory_weave()
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from_set = set(w.inclusions([w.lookup(from_revid)]))
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to_set = set(w.inclusions([w.lookup(to_revid)]))
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included = to_set.difference(from_set)
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changed = map(w.idx_to_name, included)
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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.
339
"""
340
w = self.get_inventory_weave()
341
if not last_revid:
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changed = set(w._names)
343
else:
344
included = w.inclusions([w.lookup(last_revid)])
345
changed = map(w.idx_to_name, included)
346
return self._fileid_involved_by_set(changed)
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def fileid_involved_by_set(self, changes):
349
"""Find all file_ids modified by the set of revisions passed in.
350
351
:param changes: A set() of revision ids
352
"""
353
# 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
356
# pulling it out by itself.
357
return self._fileid_involved_by_set(changes)
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359
def _fileid_involved_by_set(self, changes):
360
"""Find the set of file-ids affected by the set of revisions.
361
362
:param changes: A set() of revision ids.
363
:return: A set() of file ids.
364
365
This peaks at the Weave, interpreting each line, looking to
366
see if it mentions one of the revisions. And if so, includes
367
the file id mentioned.
368
This expects both the Weave format, and the serialization
369
to have a single line per file/directory, and to have
370
fileid="" and revision="" on that line.
371
"""
372
assert isinstance(self._format, (RepositoryFormat5,
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RepositoryFormat6,
374
RepositoryFormat7,
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RepositoryFormatKnit1)), \
376
"fileid_involved only supported for branches which store inventory as unnested xml"
377
378
w = self.get_inventory_weave()
379
file_ids = set()
380
for line in w._weave:
381
382
# it is ugly, but it is due to the weave structure
383
if not isinstance(line, basestring): continue
384
385
start = line.find('file_id="')+9
386
if start < 9: continue
387
end = line.find('"', start)
388
assert end>= 0
389
file_id = xml.sax.saxutils.unescape(line[start:end])
390
391
# check if file_id is already present
392
if file_id in file_ids: continue
393
394
start = line.find('revision="')+10
395
if start < 10: continue
396
end = line.find('"', start)
397
assert end>= 0
398
revision_id = xml.sax.saxutils.unescape(line[start:end])
399
400
if revision_id in changes:
401
file_ids.add(file_id)
402
return file_ids
403
404
@needs_read_lock
405
def get_inventory_weave(self):
406
return self.control_weaves.get_weave('inventory',
407
self.get_transaction())
408
409
@needs_read_lock
410
def get_inventory(self, revision_id):
411
"""Get Inventory object by hash."""
412
xml = self.get_inventory_xml(revision_id)
413
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
414
415
@needs_read_lock
416
def get_inventory_xml(self, revision_id):
417
"""Get inventory XML as a file object."""
418
try:
419
assert isinstance(revision_id, basestring), type(revision_id)
420
iw = self.get_inventory_weave()
421
return iw.get_text(iw.lookup(revision_id))
422
except IndexError:
423
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
424
425
@needs_read_lock
426
def get_inventory_sha1(self, revision_id):
427
"""Return the sha1 hash of the inventory entry
428
"""
429
return self.get_revision(revision_id).inventory_sha1
430
431
@needs_read_lock
432
def get_revision_inventory(self, revision_id):
433
"""Return inventory of a past revision."""
434
# TODO: Unify this with get_inventory()
435
# bzr 0.0.6 and later imposes the constraint that the inventory_id
436
# must be the same as its revision, so this is trivial.
437
if revision_id is None:
438
# This does not make sense: if there is no revision,
439
# then it is the current tree inventory surely ?!
440
# and thus get_root_id() is something that looks at the last
441
# commit on the branch, and the get_root_id is an inventory check.
442
raise NotImplementedError
443
# return Inventory(self.get_root_id())
444
else:
445
return self.get_inventory(revision_id)
446
447
@needs_read_lock
448
def is_shared(self):
449
"""Return True if this repository is flagged as a shared repository."""
450
# FIXME format 4-6 cannot be shared, this is technically faulty.
451
return self.control_files._transport.has('shared-storage')
452
453
@needs_read_lock
454
def revision_tree(self, revision_id):
455
"""Return Tree for a revision on this branch.
456
457
`revision_id` may be None for the null revision, in which case
458
an `EmptyTree` is returned."""
459
# TODO: refactor this to use an existing revision object
460
# so we don't need to read it in twice.
461
if revision_id is None or revision_id == NULL_REVISION:
462
return EmptyTree()
463
else:
464
inv = self.get_revision_inventory(revision_id)
465
return RevisionTree(self, inv, revision_id)
466
467
@needs_read_lock
468
def get_ancestry(self, revision_id):
469
"""Return a list of revision-ids integrated by a revision.
470
471
This is topologically sorted.
472
"""
473
if revision_id is None:
474
return [None]
475
if not self.has_revision(revision_id):
476
raise errors.NoSuchRevision(self, revision_id)
477
w = self.get_inventory_weave()
478
return [None] + map(w.idx_to_name,
479
w.inclusions([w.lookup(revision_id)]))
480
481
@needs_read_lock
482
def print_file(self, file, revision_id):
483
"""Print `file` to stdout.
484
485
FIXME RBC 20060125 as John Meinel points out this is a bad api
486
- it writes to stdout, it assumes that that is valid etc. Fix
487
by creating a new more flexible convenience function.
488
"""
489
tree = self.revision_tree(revision_id)
490
# use inventory as it was in that revision
491
file_id = tree.inventory.path2id(file)
492
if not file_id:
493
raise BzrError("%r is not present in revision %s" % (file, revno))
494
try:
495
revno = self.revision_id_to_revno(revision_id)
496
except errors.NoSuchRevision:
497
# TODO: This should not be BzrError,
498
# but NoSuchFile doesn't fit either
499
raise BzrError('%r is not present in revision %s'
500
% (file, revision_id))
501
else:
502
raise BzrError('%r is not present in revision %s'
503
% (file, revno))
504
tree.print_file(file_id)
505
506
def get_transaction(self):
507
return self.control_files.get_transaction()
508
509
@needs_write_lock
510
def set_make_working_trees(self, new_value):
511
"""Set the policy flag for making working trees when creating branches.
512
513
This only applies to branches that use this repository.
514
515
The default is 'True'.
516
:param new_value: True to restore the default, False to disable making
517
working trees.
518
"""
519
# FIXME: split out into a new class/strategy ?
520
if isinstance(self._format, (RepositoryFormat4,
521
RepositoryFormat5,
522
RepositoryFormat6)):
523
raise NotImplementedError(self.set_make_working_trees)
524
if new_value:
525
try:
526
self.control_files._transport.delete('no-working-trees')
527
except errors.NoSuchFile:
528
pass
529
else:
530
self.control_files.put_utf8('no-working-trees', '')
531
532
def make_working_trees(self):
533
"""Returns the policy for making working trees on new branches."""
534
# FIXME: split out into a new class/strategy ?
535
if isinstance(self._format, (RepositoryFormat4,
536
RepositoryFormat5,
537
RepositoryFormat6)):
538
return True
539
return not self.control_files._transport.has('no-working-trees')
540
541
@needs_write_lock
542
def sign_revision(self, revision_id, gpg_strategy):
543
plaintext = Testament.from_revision(self, revision_id).as_short_text()
544
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
545
546
547
class AllInOneRepository(Repository):
548
"""Legacy support - the repository behaviour for all-in-one branches."""
549
550
def __init__(self, _format, a_bzrdir, revision_store):
551
# we reuse one control files instance.
552
dir_mode = a_bzrdir._control_files._dir_mode
553
file_mode = a_bzrdir._control_files._file_mode
554
555
def get_weave(name, prefixed=False):
556
if name:
557
name = safe_unicode(name)
558
else:
559
name = ''
560
relpath = a_bzrdir._control_files._escape(name)
561
weave_transport = a_bzrdir._control_files._transport.clone(relpath)
562
ws = WeaveStore(weave_transport, prefixed=prefixed,
563
dir_mode=dir_mode,
564
file_mode=file_mode)
565
if a_bzrdir._control_files._transport.should_cache():
566
ws.enable_cache = True
567
return ws
568
569
def get_store(name, compressed=True, prefixed=False):
570
# FIXME: This approach of assuming stores are all entirely compressed
571
# or entirely uncompressed is tidy, but breaks upgrade from
572
# some existing branches where there's a mixture; we probably
573
# still want the option to look for both.
574
relpath = a_bzrdir._control_files._escape(name)
575
store = TextStore(a_bzrdir._control_files._transport.clone(relpath),
576
prefixed=prefixed, compressed=compressed,
577
dir_mode=dir_mode,
578
file_mode=file_mode)
579
#if self._transport.should_cache():
580
# cache_path = os.path.join(self.cache_root, name)
581
# os.mkdir(cache_path)
582
# store = bzrlib.store.CachedStore(store, cache_path)
583
return store
584
585
# not broken out yet because the controlweaves|inventory_store
586
# and text_store | weave_store bits are still different.
587
if isinstance(_format, RepositoryFormat4):
588
self.inventory_store = get_store('inventory-store')
589
self.text_store = get_store('text-store')
590
elif isinstance(_format, RepositoryFormat5):
591
self.control_weaves = get_weave('')
592
self.weave_store = get_weave('weaves')
593
elif isinstance(_format, RepositoryFormat6):
594
self.control_weaves = get_weave('')
595
self.weave_store = get_weave('weaves', prefixed=True)
596
else:
597
raise errors.BzrError('unreachable code: unexpected repository'
598
' format.')
599
revision_store.register_suffix('sig')
600
super(AllInOneRepository, self).__init__(_format, a_bzrdir, a_bzrdir._control_files, revision_store)
601
602
603
class MetaDirRepository(Repository):
604
"""Repositories in the new meta-dir layout."""
605
606
def __init__(self, _format, a_bzrdir, control_files, revision_store):
607
super(MetaDirRepository, self).__init__(_format,
608
a_bzrdir,
609
control_files,
610
revision_store)
611
612
dir_mode = self.control_files._dir_mode
613
file_mode = self.control_files._file_mode
614
615
def get_weave(name, prefixed=False):
616
if name:
617
name = safe_unicode(name)
618
else:
619
name = ''
620
relpath = self.control_files._escape(name)
621
weave_transport = self.control_files._transport.clone(relpath)
622
ws = WeaveStore(weave_transport, prefixed=prefixed,
623
dir_mode=dir_mode,
624
file_mode=file_mode)
625
if self.control_files._transport.should_cache():
626
ws.enable_cache = True
627
return ws
628
629
if isinstance(self._format, RepositoryFormat7):
630
self.control_weaves = get_weave('')
631
self.weave_store = get_weave('weaves', prefixed=True)
632
elif isinstance(self._format, RepositoryFormatKnit1):
633
self.control_weaves = get_weave('')
634
self.weave_store = get_weave('knits', prefixed=True)
635
else:
636
raise errors.BzrError('unreachable code: unexpected repository'
637
' format.')
638
639
640
class RepositoryFormat(object):
641
"""A repository format.
642
643
Formats provide three things:
644
* An initialization routine to construct repository data on disk.
645
* a format string which is used when the BzrDir supports versioned
646
children.
647
* an open routine which returns a Repository instance.
648
649
Formats are placed in an dict by their format string for reference
650
during opening. These should be subclasses of RepositoryFormat
651
for consistency.
652
653
Once a format is deprecated, just deprecate the initialize and open
654
methods on the format class. Do not deprecate the object, as the
655
object will be created every system load.
656
657
Common instance attributes:
658
_matchingbzrdir - the bzrdir format that the repository format was
659
originally written to work with. This can be used if manually
660
constructing a bzrdir and repository, or more commonly for test suite
661
parameterisation.
662
"""
663
664
_default_format = None
665
"""The default format used for new repositories."""
666
667
_formats = {}
668
"""The known formats."""
669
670
@classmethod
671
def find_format(klass, a_bzrdir):
672
"""Return the format for the repository object in a_bzrdir."""
673
try:
674
transport = a_bzrdir.get_repository_transport(None)
675
format_string = transport.get("format").read()
676
return klass._formats[format_string]
677
except errors.NoSuchFile:
678
raise errors.NoRepositoryPresent(a_bzrdir)
679
except KeyError:
680
raise errors.UnknownFormatError(format_string)
681
682
@classmethod
683
def get_default_format(klass):
684
"""Return the current default format."""
685
return klass._default_format
686
687
def get_format_string(self):
688
"""Return the ASCII format string that identifies this format.
689
690
Note that in pre format ?? repositories the format string is
691
not permitted nor written to disk.
692
"""
693
raise NotImplementedError(self.get_format_string)
694
695
def _get_revision_store(self, repo_transport, control_files):
696
"""Return the revision store object for this a_bzrdir."""
697
raise NotImplementedError(self._get_revision_store)
698
699
def _get_rev_store(self,
700
transport,
701
control_files,
702
name,
703
compressed=True,
704
prefixed=False):
705
"""Common logic for getting a revision store for a repository.
706
707
see self._get_revision_store for the method to
708
get the store for a repository.
709
"""
710
if name:
711
name = safe_unicode(name)
712
else:
713
name = ''
714
dir_mode = control_files._dir_mode
715
file_mode = control_files._file_mode
716
revision_store =TextStore(transport.clone(name),
717
prefixed=prefixed,
718
compressed=compressed,
719
dir_mode=dir_mode,
720
file_mode=file_mode)
721
revision_store.register_suffix('sig')
722
return revision_store
723
724
def initialize(self, a_bzrdir, shared=False):
725
"""Initialize a repository of this format in a_bzrdir.
726
727
:param a_bzrdir: The bzrdir to put the new repository in it.
728
:param shared: The repository should be initialized as a sharable one.
729
730
This may raise UninitializableFormat if shared repository are not
731
compatible the a_bzrdir.
732
"""
733
734
def is_supported(self):
735
"""Is this format supported?
736
737
Supported formats must be initializable and openable.
738
Unsupported formats may not support initialization or committing or
739
some other features depending on the reason for not being supported.
740
"""
741
return True
742
743
def open(self, a_bzrdir, _found=False):
744
"""Return an instance of this format for the bzrdir a_bzrdir.
745
746
_found is a private parameter, do not use it.
747
"""
748
raise NotImplementedError(self.open)
749
750
@classmethod
751
def register_format(klass, format):
752
klass._formats[format.get_format_string()] = format
753
754
@classmethod
755
def set_default_format(klass, format):
756
klass._default_format = format
757
758
@classmethod
759
def unregister_format(klass, format):
760
assert klass._formats[format.get_format_string()] is format
761
del klass._formats[format.get_format_string()]
762
763
764
class PreSplitOutRepositoryFormat(RepositoryFormat):
765
"""Base class for the pre split out repository formats."""
766
767
def initialize(self, a_bzrdir, shared=False, _internal=False):
768
"""Create a weave repository.
769
770
TODO: when creating split out bzr branch formats, move this to a common
771
base for Format5, Format6. or something like that.
772
"""
773
from bzrlib.weavefile import write_weave_v5
774
from bzrlib.weave import Weave
775
776
if shared:
777
raise errors.IncompatibleFormat(self, a_bzrdir._format)
778
779
if not _internal:
780
# always initialized when the bzrdir is.
781
return self.open(a_bzrdir, _found=True)
782
783
# Create an empty weave
784
sio = StringIO()
785
bzrlib.weavefile.write_weave_v5(Weave(), sio)
786
empty_weave = sio.getvalue()
787
788
mutter('creating repository in %s.', a_bzrdir.transport.base)
789
dirs = ['revision-store', 'weaves']
790
files = [('inventory.weave', StringIO(empty_weave)),
791
]
792
793
# FIXME: RBC 20060125 dont peek under the covers
794
# NB: no need to escape relative paths that are url safe.
795
control_files = LockableFiles(a_bzrdir.transport, 'branch-lock',
796
TransportLock)
797
control_files.create_lock()
798
control_files.lock_write()
799
control_files._transport.mkdir_multi(dirs,
800
mode=control_files._dir_mode)
801
try:
802
for file, content in files:
803
control_files.put(file, content)
804
finally:
805
control_files.unlock()
806
return self.open(a_bzrdir, _found=True)
807
808
def open(self, a_bzrdir, _found=False):
809
"""See RepositoryFormat.open()."""
810
if not _found:
811
# we are being called directly and must probe.
812
raise NotImplementedError
813
814
repo_transport = a_bzrdir.get_repository_transport(None)
815
control_files = a_bzrdir._control_files
816
revision_store = self._get_revision_store(repo_transport, control_files)
817
return AllInOneRepository(_format=self,
818
a_bzrdir=a_bzrdir,
819
revision_store=revision_store)
820
821
822
class RepositoryFormat4(PreSplitOutRepositoryFormat):
823
"""Bzr repository format 4.
824
825
This repository format has:
826
- flat stores
827
- TextStores for texts, inventories,revisions.
828
829
This format is deprecated: it indexes texts using a text id which is
830
removed in format 5; initializationa and write support for this format
831
has been removed.
832
"""
833
834
def __init__(self):
835
super(RepositoryFormat4, self).__init__()
836
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat4()
837
838
def initialize(self, url, shared=False, _internal=False):
839
"""Format 4 branches cannot be created."""
840
raise errors.UninitializableFormat(self)
841
842
def is_supported(self):
843
"""Format 4 is not supported.
844
845
It is not supported because the model changed from 4 to 5 and the
846
conversion logic is expensive - so doing it on the fly was not
847
feasible.
848
"""
849
return False
850
851
def _get_revision_store(self, repo_transport, control_files):
852
"""See RepositoryFormat._get_revision_store()."""
853
return self._get_rev_store(repo_transport,
854
control_files,
855
'revision-store')
856
857
858
class RepositoryFormat5(PreSplitOutRepositoryFormat):
859
"""Bzr control format 5.
860
861
This repository format has:
862
- weaves for file texts and inventory
863
- flat stores
864
- TextStores for revisions and signatures.
865
"""
866
867
def __init__(self):
868
super(RepositoryFormat5, self).__init__()
869
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat5()
870
871
def _get_revision_store(self, repo_transport, control_files):
872
"""See RepositoryFormat._get_revision_store()."""
873
"""Return the revision store object for this a_bzrdir."""
874
return self._get_rev_store(repo_transport,
875
control_files,
876
'revision-store',
877
compressed=False)
878
879
880
class RepositoryFormat6(PreSplitOutRepositoryFormat):
881
"""Bzr control format 6.
882
883
This repository format has:
884
- weaves for file texts and inventory
885
- hash subdirectory based stores.
886
- TextStores for revisions and signatures.
887
"""
888
889
def __init__(self):
890
super(RepositoryFormat6, self).__init__()
891
self._matchingbzrdir = bzrlib.bzrdir.BzrDirFormat6()
892
893
def _get_revision_store(self, repo_transport, control_files):
894
"""See RepositoryFormat._get_revision_store()."""
895
return self._get_rev_store(repo_transport,
896
control_files,
897
'revision-store',
898
compressed=False,
899
prefixed=True)
900
901
902
class MetaDirRepositoryFormat(RepositoryFormat):
903
"""Common base class for the new repositories using the metadir layour."""
904
905
def __init__(self):
906
super(MetaDirRepositoryFormat, self).__init__()
907
self._matchingbzrdir = bzrlib.bzrdir.BzrDirMetaFormat1()
908
909
def _create_control_files(self, a_bzrdir):
910
"""Create the required files and the initial control_files object."""
911
# FIXME: RBC 20060125 dont peek under the covers
912
# NB: no need to escape relative paths that are url safe.
913
repository_transport = a_bzrdir.get_repository_transport(self)
914
control_files = LockableFiles(repository_transport, 'lock', LockDir)
915
control_files.create_lock()
916
return control_files
917
918
def _get_revision_store(self, repo_transport, control_files):
919
"""See RepositoryFormat._get_revision_store()."""
920
return self._get_rev_store(repo_transport,
921
control_files,
922
'revision-store',
923
compressed=False,
924
prefixed=True,
925
)
926
927
def open(self, a_bzrdir, _found=False, _override_transport=None):
928
"""See RepositoryFormat.open().
929
930
:param _override_transport: INTERNAL USE ONLY. Allows opening the
931
repository at a slightly different url
932
than normal. I.e. during 'upgrade'.
933
"""
934
if not _found:
935
format = RepositoryFormat.find_format(a_bzrdir)
936
assert format.__class__ == self.__class__
937
if _override_transport is not None:
938
repo_transport = _override_transport
939
else:
940
repo_transport = a_bzrdir.get_repository_transport(None)
941
control_files = LockableFiles(repo_transport, 'lock', LockDir)
942
revision_store = self._get_revision_store(repo_transport, control_files)
943
return MetaDirRepository(_format=self,
944
a_bzrdir=a_bzrdir,
945
control_files=control_files,
946
revision_store=revision_store)
947
948
def _upload_blank_content(self, a_bzrdir, dirs, files, utf8_files, shared):
949
"""Upload the initial blank content."""
950
control_files = self._create_control_files(a_bzrdir)
951
control_files.lock_write()
952
try:
953
control_files._transport.mkdir_multi(dirs,
954
mode=control_files._dir_mode)
955
for file, content in files:
956
control_files.put(file, content)
957
for file, content in utf8_files:
958
control_files.put_utf8(file, content)
959
if shared == True:
960
control_files.put_utf8('shared-storage', '')
961
finally:
962
control_files.unlock()
963
964
965
class RepositoryFormat7(MetaDirRepositoryFormat):
966
"""Bzr repository 7.
967
968
This repository format has:
969
- weaves for file texts and inventory
970
- hash subdirectory based stores.
971
- TextStores for revisions and signatures.
972
- a format marker of its own
973
- an optional 'shared-storage' flag
974
- an optional 'no-working-trees' flag
975
"""
976
977
def get_format_string(self):
978
"""See RepositoryFormat.get_format_string()."""
979
return "Bazaar-NG Repository format 7"
980
981
def initialize(self, a_bzrdir, shared=False):
982
"""Create a weave repository.
983
984
:param shared: If true the repository will be initialized as a shared
985
repository.
986
"""
987
from bzrlib.weavefile import write_weave_v5
988
from bzrlib.weave import Weave
989
990
# Create an empty weave
991
sio = StringIO()
992
bzrlib.weavefile.write_weave_v5(Weave(), sio)
993
empty_weave = sio.getvalue()
994
995
mutter('creating repository in %s.', a_bzrdir.transport.base)
996
dirs = ['revision-store', 'weaves']
997
files = [('inventory.weave', StringIO(empty_weave)),
998
]
999
utf8_files = [('format', self.get_format_string())]
1000
1001
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1002
return self.open(a_bzrdir=a_bzrdir, _found=True)
1003
1004
1005
class RepositoryFormatKnit1(MetaDirRepositoryFormat):
1006
"""Bzr repository knit format 1.
1007
1008
This repository format has:
1009
- knits for file texts and inventory
1010
- hash subdirectory based stores.
1011
- knits for revisions and signatures
1012
- TextStores for revisions and signatures.
1013
- a format marker of its own
1014
- an optional 'shared-storage' flag
1015
- an optional 'no-working-trees' flag
1016
- a LockDir lock
1017
"""
1018
1019
def get_format_string(self):
1020
"""See RepositoryFormat.get_format_string()."""
1021
return "Bazaar-NG Knit Repository Format 1"
1022
1023
def initialize(self, a_bzrdir, shared=False):
1024
"""Create a knit format 1 repository.
1025
1026
:param shared: If true the repository will be initialized as a shared
1027
repository.
1028
XXX NOTE that this current uses a Weave for testing and will become
1029
A Knit in due course.
1030
"""
1031
from bzrlib.weavefile import write_weave_v5
1032
from bzrlib.weave import Weave
1033
1034
# Create an empty weave
1035
sio = StringIO()
1036
bzrlib.weavefile.write_weave_v5(Weave(), sio)
1037
empty_weave = sio.getvalue()
1038
1039
mutter('creating repository in %s.', a_bzrdir.transport.base)
1040
dirs = ['revision-store', 'knits']
1041
files = [('inventory.weave', StringIO(empty_weave)),
1042
]
1043
utf8_files = [('format', self.get_format_string())]
1044
1045
self._upload_blank_content(a_bzrdir, dirs, files, utf8_files, shared)
1046
return self.open(a_bzrdir=a_bzrdir, _found=True)
1047
1048
1049
# formats which have no format string are not discoverable
1050
# and not independently creatable, so are not registered.
1051
_default_format = RepositoryFormat7()
1052
RepositoryFormat.register_format(_default_format)
1053
RepositoryFormat.register_format(RepositoryFormatKnit1())
1054
RepositoryFormat.set_default_format(_default_format)
1055
_legacy_formats = [RepositoryFormat4(),
1056
RepositoryFormat5(),
1057
RepositoryFormat6()]
1058
1059
1060
class InterRepository(object):
1061
"""This class represents operations taking place between two repositories.
1062
1063
Its instances have methods like copy_content and fetch, and contain
1064
references to the source and target repositories these operations can be
1065
carried out on.
1066
1067
Often we will provide convenience methods on 'repository' which carry out
1068
operations with another repository - they will always forward to
1069
InterRepository.get(other).method_name(parameters).
1070
"""
1071
# XXX: FIXME: FUTURE: robertc
1072
# testing of these probably requires a factory in optimiser type, and
1073
# then a test adapter to test each type thoroughly.
1074
#
1075
1076
_optimisers = set()
1077
"""The available optimised InterRepository types."""
1078
1079
def __init__(self, source, target):
1080
"""Construct a default InterRepository instance. Please use 'get'.
1081
1082
Only subclasses of InterRepository should call
1083
InterRepository.__init__ - clients should call InterRepository.get
1084
instead which will create an optimised InterRepository if possible.
1085
"""
1086
self.source = source
1087
self.target = target
1088
1089
@needs_write_lock
1090
def copy_content(self, revision_id=None, basis=None):
1091
"""Make a complete copy of the content in self into destination.
1092
1093
This is a destructive operation! Do not use it on existing
1094
repositories.
1095
1096
:param revision_id: Only copy the content needed to construct
1097
revision_id and its parents.
1098
:param basis: Copy the needed data preferentially from basis.
1099
"""
1100
try:
1101
self.target.set_make_working_trees(self.source.make_working_trees())
1102
except NotImplementedError:
1103
pass
1104
# grab the basis available data
1105
if basis is not None:
1106
self.target.fetch(basis, revision_id=revision_id)
1107
# but dont both fetching if we have the needed data now.
1108
if (revision_id not in (None, NULL_REVISION) and
1109
self.target.has_revision(revision_id)):
1110
return
1111
self.target.fetch(self.source, revision_id=revision_id)
1112
1113
def _double_lock(self, lock_source, lock_target):
1114
"""Take out too locks, rolling back the first if the second throws."""
1115
lock_source()
1116
try:
1117
lock_target()
1118
except Exception:
1119
# we want to ensure that we don't leave source locked by mistake.
1120
# and any error on target should not confuse source.
1121
self.source.unlock()
1122
raise
1123
1124
@needs_write_lock
1125
def fetch(self, revision_id=None, pb=None):
1126
"""Fetch the content required to construct revision_id.
1127
1128
The content is copied from source to target.
1129
1130
:param revision_id: if None all content is copied, if NULL_REVISION no
1131
content is copied.
1132
:param pb: optional progress bar to use for progress reports. If not
1133
provided a default one will be created.
1134
1135
Returns the copied revision count and the failed revisions in a tuple:
1136
(copied, failures).
1137
"""
1138
from bzrlib.fetch import RepoFetcher
1139
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1140
self.source, self.source._format, self.target, self.target._format)
1141
f = RepoFetcher(to_repository=self.target,
1142
from_repository=self.source,
1143
last_revision=revision_id,
1144
pb=pb)
1145
return f.count_copied, f.failed_revisions
1146
1147
@classmethod
1148
def get(klass, repository_source, repository_target):
1149
"""Retrieve a InterRepository worker object for these repositories.
1150
1151
:param repository_source: the repository to be the 'source' member of
1152
the InterRepository instance.
1153
:param repository_target: the repository to be the 'target' member of
1154
the InterRepository instance.
1155
If an optimised InterRepository worker exists it will be used otherwise
1156
a default InterRepository instance will be created.
1157
"""
1158
for provider in klass._optimisers:
1159
if provider.is_compatible(repository_source, repository_target):
1160
return provider(repository_source, repository_target)
1161
return InterRepository(repository_source, repository_target)
1162
1163
def lock_read(self):
1164
"""Take out a logical read lock.
1165
1166
This will lock the source branch and the target branch. The source gets
1167
a read lock and the target a read lock.
1168
"""
1169
self._double_lock(self.source.lock_read, self.target.lock_read)
1170
1171
def lock_write(self):
1172
"""Take out a logical write lock.
1173
1174
This will lock the source branch and the target branch. The source gets
1175
a read lock and the target a write lock.
1176
"""
1177
self._double_lock(self.source.lock_read, self.target.lock_write)
1178
1179
@needs_read_lock
1180
def missing_revision_ids(self, revision_id=None):
1181
"""Return the revision ids that source has that target does not.
1182
1183
These are returned in topological order.
1184
1185
:param revision_id: only return revision ids included by this
1186
revision_id.
1187
"""
1188
# generic, possibly worst case, slow code path.
1189
target_ids = set(self.target.all_revision_ids())
1190
if revision_id is not None:
1191
source_ids = self.source.get_ancestry(revision_id)
1192
assert source_ids.pop(0) == None
1193
else:
1194
source_ids = self.source.all_revision_ids()
1195
result_set = set(source_ids).difference(target_ids)
1196
# this may look like a no-op: its not. It preserves the ordering
1197
# other_ids had while only returning the members from other_ids
1198
# that we've decided we need.
1199
return [rev_id for rev_id in source_ids if rev_id in result_set]
1200
1201
@classmethod
1202
def register_optimiser(klass, optimiser):
1203
"""Register an InterRepository optimiser."""
1204
klass._optimisers.add(optimiser)
1205
1206
def unlock(self):
1207
"""Release the locks on source and target."""
1208
try:
1209
self.target.unlock()
1210
finally:
1211
self.source.unlock()
1212
1213
@classmethod
1214
def unregister_optimiser(klass, optimiser):
1215
"""Unregister an InterRepository optimiser."""
1216
klass._optimisers.remove(optimiser)
1217
1218
1219
class InterWeaveRepo(InterRepository):
1220
"""Optimised code paths between Weave based repositories."""
1221
1222
_matching_repo_format = _default_format
1223
"""Repository format for testing with."""
1224
1225
@staticmethod
1226
def is_compatible(source, target):
1227
"""Be compatible with known Weave formats.
1228
1229
We dont test for the stores being of specific types becase that
1230
could lead to confusing results, and there is no need to be
1231
overly general.
1232
"""
1233
try:
1234
return (isinstance(source._format, (RepositoryFormat5,
1235
RepositoryFormat6,
1236
RepositoryFormat7)) and
1237
isinstance(target._format, (RepositoryFormat5,
1238
RepositoryFormat6,
1239
RepositoryFormat7)))
1240
except AttributeError:
1241
return False
1242
1243
@needs_write_lock
1244
def copy_content(self, revision_id=None, basis=None):
1245
"""See InterRepository.copy_content()."""
1246
# weave specific optimised path:
1247
if basis is not None:
1248
# copy the basis in, then fetch remaining data.
1249
basis.copy_content_into(self.target, revision_id)
1250
# the basis copy_content_into could misset this.
1251
try:
1252
self.target.set_make_working_trees(self.source.make_working_trees())
1253
except NotImplementedError:
1254
pass
1255
self.target.fetch(self.source, revision_id=revision_id)
1256
else:
1257
try:
1258
self.target.set_make_working_trees(self.source.make_working_trees())
1259
except NotImplementedError:
1260
pass
1261
# FIXME do not peek!
1262
if self.source.control_files._transport.listable():
1263
pb = bzrlib.ui.ui_factory.progress_bar()
1264
copy_all(self.source.weave_store,
1265
self.target.weave_store, pb=pb)
1266
pb.update('copying inventory', 0, 1)
1267
self.target.control_weaves.copy_multi(
1268
self.source.control_weaves, ['inventory'])
1269
copy_all(self.source.revision_store,
1270
self.target.revision_store, pb=pb)
1271
else:
1272
self.target.fetch(self.source, revision_id=revision_id)
1273
1274
@needs_write_lock
1275
def fetch(self, revision_id=None, pb=None):
1276
"""See InterRepository.fetch()."""
1277
from bzrlib.fetch import RepoFetcher
1278
mutter("Using fetch logic to copy between %s(%s) and %s(%s)",
1279
self.source, self.source._format, self.target, self.target._format)
1280
f = RepoFetcher(to_repository=self.target,
1281
from_repository=self.source,
1282
last_revision=revision_id,
1283
pb=pb)
1284
return f.count_copied, f.failed_revisions
1285
1286
@needs_read_lock
1287
def missing_revision_ids(self, revision_id=None):
1288
"""See InterRepository.missing_revision_ids()."""
1289
# we want all revisions to satisfy revision_id in source.
1290
# but we dont want to stat every file here and there.
1291
# we want then, all revisions other needs to satisfy revision_id
1292
# checked, but not those that we have locally.
1293
# so the first thing is to get a subset of the revisions to
1294
# satisfy revision_id in source, and then eliminate those that
1295
# we do already have.
1296
# this is slow on high latency connection to self, but as as this
1297
# disk format scales terribly for push anyway due to rewriting
1298
# inventory.weave, this is considered acceptable.
1299
# - RBC 20060209
1300
if revision_id is not None:
1301
source_ids = self.source.get_ancestry(revision_id)
1302
assert source_ids.pop(0) == None
1303
else:
1304
source_ids = self.source._all_possible_ids()
1305
source_ids_set = set(source_ids)
1306
# source_ids is the worst possible case we may need to pull.
1307
# now we want to filter source_ids against what we actually
1308
# have in target, but dont try to check for existence where we know
1309
# we do not have a revision as that would be pointless.
1310
target_ids = set(self.target._all_possible_ids())
1311
possibly_present_revisions = target_ids.intersection(source_ids_set)
1312
actually_present_revisions = set(self.target._eliminate_revisions_not_present(possibly_present_revisions))
1313
required_revisions = source_ids_set.difference(actually_present_revisions)
1314
required_topo_revisions = [rev_id for rev_id in source_ids if rev_id in required_revisions]
1315
if revision_id is not None:
1316
# we used get_ancestry to determine source_ids then we are assured all
1317
# revisions referenced are present as they are installed in topological order.
1318
# and the tip revision was validated by get_ancestry.
1319
return required_topo_revisions
1320
else:
1321
# if we just grabbed the possibly available ids, then
1322
# we only have an estimate of whats available and need to validate
1323
# that against the revision records.
1324
return self.source._eliminate_revisions_not_present(required_topo_revisions)
1325
1326
1327
InterRepository.register_optimiser(InterWeaveRepo)
1328
1329
1330
class RepositoryTestProviderAdapter(object):
1331
"""A tool to generate a suite testing multiple repository formats at once.
1332
1333
This is done by copying the test once for each transport and injecting
1334
the transport_server, transport_readonly_server, and bzrdir_format and
1335
repository_format classes into each copy. Each copy is also given a new id()
1336
to make it easy to identify.
1337
"""
1338
1339
def __init__(self, transport_server, transport_readonly_server, formats):
1340
self._transport_server = transport_server
1341
self._transport_readonly_server = transport_readonly_server
1342
self._formats = formats
1343
1344
def adapt(self, test):
1345
result = TestSuite()
1346
for repository_format, bzrdir_format in self._formats:
1347
new_test = deepcopy(test)
1348
new_test.transport_server = self._transport_server
1349
new_test.transport_readonly_server = self._transport_readonly_server
1350
new_test.bzrdir_format = bzrdir_format
1351
new_test.repository_format = repository_format
1352
def make_new_test_id():
1353
new_id = "%s(%s)" % (new_test.id(), repository_format.__class__.__name__)
1354
return lambda: new_id
1355
new_test.id = make_new_test_id()
1356
result.addTest(new_test)
1357
return result
1358
1359
1360
class InterRepositoryTestProviderAdapter(object):
1361
"""A tool to generate a suite testing multiple inter repository formats.
1362
1363
This is done by copying the test once for each interrepo provider and injecting
1364
the transport_server, transport_readonly_server, repository_format and
1365
repository_to_format classes into each copy.
1366
Each copy is also given a new id() to make it easy to identify.
1367
"""
1368
1369
def __init__(self, transport_server, transport_readonly_server, formats):
1370
self._transport_server = transport_server
1371
self._transport_readonly_server = transport_readonly_server
1372
self._formats = formats
1373
1374
def adapt(self, test):
1375
result = TestSuite()
1376
for interrepo_class, repository_format, repository_format_to in self._formats:
1377
new_test = deepcopy(test)
1378
new_test.transport_server = self._transport_server
1379
new_test.transport_readonly_server = self._transport_readonly_server
1380
new_test.interrepo_class = interrepo_class
1381
new_test.repository_format = repository_format
1382
new_test.repository_format_to = repository_format_to
1383
def make_new_test_id():
1384
new_id = "%s(%s)" % (new_test.id(), interrepo_class.__name__)
1385
return lambda: new_id
1386
new_test.id = make_new_test_id()
1387
result.addTest(new_test)
1388
return result
1389
1390
@staticmethod
1391
def default_test_list():
1392
"""Generate the default list of interrepo permutations to test."""
1393
result = []
1394
# test the default InterRepository between format 6 and the current
1395
# default format.
1396
# XXX: robertc 20060220 reinstate this when there are two supported
1397
# formats which do not have an optimal code path between them.
1398
result.append((InterRepository,
1399
RepositoryFormat6(),
1400
RepositoryFormatKnit1()))
1401
for optimiser in InterRepository._optimisers:
1402
result.append((optimiser,
1403
optimiser._matching_repo_format,
1404
optimiser._matching_repo_format
1405
))
1406
# if there are specific combinations we want to use, we can add them
1407
# here.
1408
return result
1409
1410
1411
class CopyConverter(object):
1412
"""A repository conversion tool which just performs a copy of the content.
1413
1414
This is slow but quite reliable.
1415
"""
1416
1417
def __init__(self, target_format):
1418
"""Create a CopyConverter.
1419
1420
:param target_format: The format the resulting repository should be.
1421
"""
1422
self.target_format = target_format
1423
1424
def convert(self, repo, pb):
1425
"""Perform the conversion of to_convert, giving feedback via pb.
1426
1427
:param to_convert: The disk object to convert.
1428
:param pb: a progress bar to use for progress information.
1429
"""
1430
self.pb = pb
1431
self.count = 0
1432
self.total = 3
1433
# this is only useful with metadir layouts - separated repo content.
1434
# trigger an assertion if not such
1435
repo._format.get_format_string()
1436
self.repo_dir = repo.bzrdir
1437
self.step('Moving repository to repository.backup')
1438
self.repo_dir.transport.move('repository', 'repository.backup')
1439
backup_transport = self.repo_dir.transport.clone('repository.backup')
1440
self.source_repo = repo._format.open(self.repo_dir,
1441
_found=True,
1442
_override_transport=backup_transport)
1443
self.step('Creating new repository')
1444
converted = self.target_format.initialize(self.repo_dir,
1445
self.source_repo.is_shared())
1446
converted.lock_write()
1447
try:
1448
self.step('Copying content into repository.')
1449
self.source_repo.copy_content_into(converted)
1450
finally:
1451
converted.unlock()
1452
self.step('Deleting old repository content.')
1453
self.repo_dir.transport.delete_tree('repository.backup')
1454
self.pb.note('repository converted')
1455
1456
def step(self, message):
1457
"""Update the pb by a step."""
1458
self.count +=1
1459
self.pb.update(message, self.count, self.total)
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