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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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"""BzrDir logic. The BzrDir is the basic control directory used by bzr.
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At format 7 this was split out into Branch, Repository and Checkout control
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from copy import deepcopy
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from cStringIO import StringIO
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from unittest import TestSuite
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import bzrlib.errors as errors
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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.osutils import (
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from bzrlib.store.revision.text import TextRevisionStore
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from bzrlib.store.text import TextStore
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from bzrlib.store.versioned import WeaveStore
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from bzrlib.symbol_versioning import *
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from bzrlib.trace import mutter
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from bzrlib.transactions import WriteTransaction
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from bzrlib.transport import get_transport, urlunescape
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from bzrlib.transport.local import LocalTransport
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from bzrlib.weave import Weave
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from bzrlib.xml4 import serializer_v4
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from bzrlib.xml5 import serializer_v5
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"""A .bzr control diretory.
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BzrDir instances let you create or open any of the things that can be
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found within .bzr - checkouts, branches and repositories.
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the transport which this bzr dir is rooted at (i.e. file:///.../.bzr/)
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a transport connected to the directory this bzr was opened from.
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def can_convert_format(self):
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"""Return true if this bzrdir is one whose format we can convert from."""
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def _check_supported(format, allow_unsupported):
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"""Check whether format is a supported format.
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If allow_unsupported is True, this is a no-op.
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if not allow_unsupported and not format.is_supported():
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# see open_downlevel to open legacy branches.
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raise errors.UnsupportedFormatError(
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'sorry, format %s not supported' % format,
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['use a different bzr version',
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'or remove the .bzr directory'
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' and "bzr init" again'])
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def clone(self, url, revision_id=None, basis=None, force_new_repo=False):
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"""Clone this bzrdir and its contents to url verbatim.
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If urls last component does not exist, it will be created.
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if revision_id is not None, then the clone operation may tune
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itself to download less data.
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:param force_new_repo: Do not use a shared repository for the target
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even if one is available.
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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result = self._format.initialize(url)
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local_repo = self.find_repository()
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except errors.NoRepositoryPresent:
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# may need to copy content in
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local_repo.clone(result, revision_id=revision_id, basis=basis_repo)
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result_repo = result.find_repository()
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# fetch content this dir needs.
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# XXX FIXME RBC 20060214 need tests for this when the basis
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result_repo.fetch(basis_repo, revision_id=revision_id)
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result_repo.fetch(local_repo, revision_id=revision_id)
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except errors.NoRepositoryPresent:
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# needed to make one anyway.
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local_repo.clone(result, revision_id=revision_id, basis=basis_repo)
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# 1 if there is a branch present
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# make sure its content is available in the target repository
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self.open_branch().clone(result, revision_id=revision_id)
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except errors.NotBranchError:
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self.open_workingtree().clone(result, basis=basis_tree)
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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def _get_basis_components(self, basis):
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"""Retrieve the basis components that are available at basis."""
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return None, None, None
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basis_tree = basis.open_workingtree()
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basis_branch = basis_tree.branch
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basis_repo = basis_branch.repository
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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basis_branch = basis.open_branch()
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basis_repo = basis_branch.repository
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except errors.NotBranchError:
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basis_repo = basis.open_repository()
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except errors.NoRepositoryPresent:
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return basis_repo, basis_branch, basis_tree
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def _make_tail(self, url):
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segments = url.split('/')
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if segments and segments[-1] not in ('', '.'):
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parent = '/'.join(segments[:-1])
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t = bzrlib.transport.get_transport(parent)
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t.mkdir(segments[-1])
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except errors.FileExists:
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def create(cls, base):
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"""Create a new BzrDir at the url 'base'.
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This will call the current default formats initialize with base
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as the only parameter.
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If you need a specific format, consider creating an instance
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of that and calling initialize().
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if cls is not BzrDir:
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raise AssertionError("BzrDir.create always creates the default format, "
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"not one of %r" % cls)
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segments = base.split('/')
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if segments and segments[-1] not in ('', '.'):
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parent = '/'.join(segments[:-1])
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t = bzrlib.transport.get_transport(parent)
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t.mkdir(segments[-1])
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except errors.FileExists:
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return BzrDirFormat.get_default_format().initialize(safe_unicode(base))
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def create_branch(self):
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"""Create a branch in this BzrDir.
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The bzrdirs format will control what branch format is created.
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For more control see BranchFormatXX.create(a_bzrdir).
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raise NotImplementedError(self.create_branch)
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def create_branch_and_repo(base, force_new_repo=False):
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"""Create a new BzrDir, Branch and Repository at the url 'base'.
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This will use the current default BzrDirFormat, and use whatever
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repository format that that uses via bzrdir.create_branch and
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create_repository. If a shared repository is available that is used
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The created Branch object is returned.
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:param base: The URL to create the branch at.
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:param force_new_repo: If True a new repository is always created.
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bzrdir = BzrDir.create(base)
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bzrdir._find_or_create_repository(force_new_repo)
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return bzrdir.create_branch()
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def _find_or_create_repository(self, force_new_repo):
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"""Create a new repository if needed, returning the repository."""
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return self.create_repository()
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return self.find_repository()
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except errors.NoRepositoryPresent:
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return self.create_repository()
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def create_branch_convenience(base, force_new_repo=False,
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force_new_tree=None, format=None):
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"""Create a new BzrDir, Branch and Repository at the url 'base'.
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This is a convenience function - it will use an existing repository
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if possible, can be told explicitly whether to create a working tree or
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This will use the current default BzrDirFormat, and use whatever
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repository format that that uses via bzrdir.create_branch and
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create_repository. If a shared repository is available that is used
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preferentially. Whatever repository is used, its tree creation policy
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The created Branch object is returned.
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If a working tree cannot be made due to base not being a file:// url,
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no error is raised unless force_new_tree is True, in which case no
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data is created on disk and NotLocalUrl is raised.
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:param base: The URL to create the branch at.
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:param force_new_repo: If True a new repository is always created.
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:param force_new_tree: If True or False force creation of a tree or
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prevent such creation respectively.
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:param format: Override for the for the bzrdir format to create
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# check for non local urls
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t = get_transport(safe_unicode(base))
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if not isinstance(t, LocalTransport):
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raise errors.NotLocalUrl(base)
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bzrdir = BzrDir.create(base)
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bzrdir = format.initialize(base)
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repo = bzrdir._find_or_create_repository(force_new_repo)
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result = bzrdir.create_branch()
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if force_new_tree or (repo.make_working_trees() and
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force_new_tree is None):
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bzrdir.create_workingtree()
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except errors.NotLocalUrl:
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def create_repository(base, shared=False):
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"""Create a new BzrDir and Repository at the url 'base'.
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This will use the current default BzrDirFormat, and use whatever
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repository format that that uses for bzrdirformat.create_repository.
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;param shared: Create a shared repository rather than a standalone
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The Repository object is returned.
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This must be overridden as an instance method in child classes, where
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it should take no parameters and construct whatever repository format
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that child class desires.
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bzrdir = BzrDir.create(base)
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return bzrdir.create_repository()
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def create_standalone_workingtree(base):
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"""Create a new BzrDir, WorkingTree, Branch and Repository at 'base'.
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'base' must be a local path or a file:// url.
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This will use the current default BzrDirFormat, and use whatever
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repository format that that uses for bzrdirformat.create_workingtree,
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create_branch and create_repository.
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The WorkingTree object is returned.
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t = get_transport(safe_unicode(base))
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if not isinstance(t, LocalTransport):
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raise errors.NotLocalUrl(base)
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bzrdir = BzrDir.create_branch_and_repo(safe_unicode(base),
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force_new_repo=True).bzrdir
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return bzrdir.create_workingtree()
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def create_workingtree(self, revision_id=None):
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"""Create a working tree at this BzrDir.
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revision_id: create it as of this revision id.
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raise NotImplementedError(self.create_workingtree)
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def find_repository(self):
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"""Find the repository that should be used for a_bzrdir.
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This does not require a branch as we use it to find the repo for
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new branches as well as to hook existing branches up to their
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return self.open_repository()
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except errors.NoRepositoryPresent:
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next_transport = self.root_transport.clone('..')
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found_bzrdir = BzrDir.open_containing_from_transport(
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except errors.NotBranchError:
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raise errors.NoRepositoryPresent(self)
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repository = found_bzrdir.open_repository()
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except errors.NoRepositoryPresent:
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next_transport = found_bzrdir.root_transport.clone('..')
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if ((found_bzrdir.root_transport.base ==
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self.root_transport.base) or repository.is_shared()):
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raise errors.NoRepositoryPresent(self)
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raise errors.NoRepositoryPresent(self)
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def get_branch_transport(self, branch_format):
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"""Get the transport for use by branch format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the branch format they are given has
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a format string, and vice verca.
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If branch_format is None, the transport is returned with no
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checking. if it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_branch_transport)
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def get_repository_transport(self, repository_format):
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"""Get the transport for use by repository format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the repository format they are given has
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a format string, and vice verca.
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If repository_format is None, the transport is returned with no
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checking. if it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_repository_transport)
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def get_workingtree_transport(self, tree_format):
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"""Get the transport for use by workingtree format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the workingtree format they are given has
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a format string, and vice verca.
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If workingtree_format is None, the transport is returned with no
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checking. if it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_workingtree_transport)
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def __init__(self, _transport, _format):
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"""Initialize a Bzr control dir object.
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Only really common logic should reside here, concrete classes should be
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made with varying behaviours.
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:param _format: the format that is creating this BzrDir instance.
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:param _transport: the transport this dir is based at.
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self._format = _format
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self.transport = _transport.clone('.bzr')
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self.root_transport = _transport
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def needs_format_conversion(self, format=None):
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"""Return true if this bzrdir needs convert_format run on it.
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For instance, if the repository format is out of date but the
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branch and working tree are not, this should return True.
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:param format: Optional parameter indicating a specific desired
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format we plan to arrive at.
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raise NotImplementedError(self.needs_format_conversion)
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def open_unsupported(base):
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"""Open a branch which is not supported."""
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return BzrDir.open(base, _unsupported=True)
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def open(base, _unsupported=False):
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"""Open an existing bzrdir, rooted at 'base' (url)
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_unsupported is a private parameter to the BzrDir class.
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t = get_transport(base)
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mutter("trying to open %r with transport %r", base, t)
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format = BzrDirFormat.find_format(t)
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BzrDir._check_supported(format, _unsupported)
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return format.open(t, _found=True)
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def open_branch(self, unsupported=False):
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"""Open the branch object at this BzrDir if one is present.
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If unsupported is True, then no longer supported branch formats can
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TODO: static convenience version of this?
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raise NotImplementedError(self.open_branch)
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def open_containing(url):
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"""Open an existing branch which contains url.
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:param url: url to search from.
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See open_containing_from_transport for more detail.
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return BzrDir.open_containing_from_transport(get_transport(url))
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def open_containing_from_transport(a_transport):
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"""Open an existing branch which contains a_transport.base
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This probes for a branch at a_transport, and searches upwards from there.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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If there is one and it is either an unrecognised format or an unsupported
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format, UnknownFormatError or UnsupportedFormatError are raised.
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If there is one, it is returned, along with the unused portion of url.
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# this gets the normalised url back. I.e. '.' -> the full path.
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url = a_transport.base
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format = BzrDirFormat.find_format(a_transport)
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BzrDir._check_supported(format, False)
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return format.open(a_transport), a_transport.relpath(url)
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except errors.NotBranchError, e:
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mutter('not a branch in: %r %s', a_transport.base, e)
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new_t = a_transport.clone('..')
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if new_t.base == a_transport.base:
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# reached the root, whatever that may be
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raise errors.NotBranchError(path=url)
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def open_repository(self, _unsupported=False):
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"""Open the repository object at this BzrDir if one is present.
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This will not follow the Branch object pointer - its strictly a direct
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open facility. Most client code should use open_branch().repository to
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_unsupported is a private parameter, not part of the api.
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TODO: static convenience version of this?
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raise NotImplementedError(self.open_repository)
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def open_workingtree(self, _unsupported=False):
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"""Open the workingtree object at this BzrDir if one is present.
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TODO: static convenience version of this?
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raise NotImplementedError(self.open_workingtree)
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def has_branch(self):
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"""Tell if this bzrdir contains a branch.
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Note: if you're going to open the branch, you should just go ahead
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and try, and not ask permission first. (This method just opens the
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branch and discards it, and that's somewhat expensive.)
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except errors.NotBranchError:
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def has_workingtree(self):
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"""Tell if this bzrdir contains a working tree.
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This will still raise an exception if the bzrdir has a workingtree that
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is remote & inaccessible.
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Note: if you're going to open the working tree, you should just go ahead
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and try, and not ask permission first. (This method just opens the
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workingtree and discards it, and that's somewhat expensive.)
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self.open_workingtree()
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except errors.NoWorkingTree:
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def sprout(self, url, revision_id=None, basis=None, force_new_repo=False):
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"""Create a copy of this bzrdir prepared for use as a new line of
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If urls last component does not exist, it will be created.
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Attributes related to the identity of the source branch like
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branch nickname will be cleaned, a working tree is created
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whether one existed before or not; and a local branch is always
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if revision_id is not None, then the clone operation may tune
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itself to download less data.
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result = self._format.initialize(url)
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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source_branch = self.open_branch()
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source_repository = source_branch.repository
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except errors.NotBranchError:
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source_repository = self.open_repository()
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except errors.NoRepositoryPresent:
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# copy the entire basis one if there is one
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# but there is no repository.
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source_repository = basis_repo
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result_repo = result.find_repository()
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except errors.NoRepositoryPresent:
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if source_repository is None and result_repo is not None:
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elif source_repository is None and result_repo is None:
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# no repo available, make a new one
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result.create_repository()
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elif source_repository is not None and result_repo is None:
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# have soure, and want to make a new target repo
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source_repository.clone(result,
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revision_id=revision_id,
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# fetch needed content into target.
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# XXX FIXME RBC 20060214 need tests for this when the basis
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result_repo.fetch(basis_repo, revision_id=revision_id)
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result_repo.fetch(source_repository, revision_id=revision_id)
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if source_branch is not None:
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source_branch.sprout(result, revision_id=revision_id)
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result.create_branch()
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# TODO: jam 20060426 we probably need a test in here in the
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# case that the newly sprouted branch is a remote one
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if result_repo is None or result_repo.make_working_trees():
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result.create_workingtree()
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class BzrDirPreSplitOut(BzrDir):
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"""A common class for the all-in-one formats."""
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def __init__(self, _transport, _format):
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"""See BzrDir.__init__."""
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super(BzrDirPreSplitOut, self).__init__(_transport, _format)
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assert self._format._lock_class == TransportLock
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assert self._format._lock_file_name == 'branch-lock'
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self._control_files = LockableFiles(self.get_branch_transport(None),
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self._format._lock_file_name,
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self._format._lock_class)
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def clone(self, url, revision_id=None, basis=None, force_new_repo=False):
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"""See BzrDir.clone()."""
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from bzrlib.workingtree import WorkingTreeFormat2
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result = self._format._initialize_for_clone(url)
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
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self.open_branch().clone(result, revision_id=revision_id)
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self.open_workingtree().clone(result, basis=basis_tree)
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except errors.NotLocalUrl:
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# make a new one, this format always has to have one.
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WorkingTreeFormat2().initialize(result)
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except errors.NotLocalUrl:
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# but we canot do it for remote trees.
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def create_branch(self):
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"""See BzrDir.create_branch."""
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return self.open_branch()
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def create_repository(self, shared=False):
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"""See BzrDir.create_repository."""
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raise errors.IncompatibleFormat('shared repository', self._format)
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return self.open_repository()
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def create_workingtree(self, revision_id=None):
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"""See BzrDir.create_workingtree."""
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# this looks buggy but is not -really-
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# clone and sprout will have set the revision_id
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# and that will have set it for us, its only
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# specific uses of create_workingtree in isolation
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# that can do wonky stuff here, and that only
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# happens for creating checkouts, which cannot be
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# done on this format anyway. So - acceptable wart.
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result = self.open_workingtree()
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if revision_id is not None:
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result.set_last_revision(revision_id)
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def get_branch_transport(self, branch_format):
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"""See BzrDir.get_branch_transport()."""
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if branch_format is None:
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return self.transport
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branch_format.get_format_string()
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except NotImplementedError:
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return self.transport
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raise errors.IncompatibleFormat(branch_format, self._format)
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def get_repository_transport(self, repository_format):
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"""See BzrDir.get_repository_transport()."""
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if repository_format is None:
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return self.transport
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repository_format.get_format_string()
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except NotImplementedError:
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return self.transport
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raise errors.IncompatibleFormat(repository_format, self._format)
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def get_workingtree_transport(self, workingtree_format):
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"""See BzrDir.get_workingtree_transport()."""
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if workingtree_format is None:
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return self.transport
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workingtree_format.get_format_string()
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except NotImplementedError:
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return self.transport
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raise errors.IncompatibleFormat(workingtree_format, self._format)
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def needs_format_conversion(self, format=None):
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"""See BzrDir.needs_format_conversion()."""
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# if the format is not the same as the system default,
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# an upgrade is needed.
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format = BzrDirFormat.get_default_format()
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return not isinstance(self._format, format.__class__)
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def open_branch(self, unsupported=False):
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"""See BzrDir.open_branch."""
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from bzrlib.branch import BzrBranchFormat4
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format = BzrBranchFormat4()
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self._check_supported(format, unsupported)
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return format.open(self, _found=True)
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def sprout(self, url, revision_id=None, basis=None):
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"""See BzrDir.sprout()."""
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from bzrlib.workingtree import WorkingTreeFormat2
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result = self._format._initialize_for_clone(url)
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
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except errors.NoRepositoryPresent:
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self.open_branch().sprout(result, revision_id=revision_id)
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except errors.NotBranchError:
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# we always want a working tree
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WorkingTreeFormat2().initialize(result)
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class BzrDir4(BzrDirPreSplitOut):
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"""A .bzr version 4 control object.
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This is a deprecated format and may be removed after sept 2006.
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def create_repository(self, shared=False):
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"""See BzrDir.create_repository."""
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return self._format.repository_format.initialize(self, shared)
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def needs_format_conversion(self, format=None):
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"""Format 4 dirs are always in need of conversion."""
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def open_repository(self):
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"""See BzrDir.open_repository."""
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from bzrlib.repository import RepositoryFormat4
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return RepositoryFormat4().open(self, _found=True)
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class BzrDir5(BzrDirPreSplitOut):
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"""A .bzr version 5 control object.
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This is a deprecated format and may be removed after sept 2006.
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def open_repository(self):
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"""See BzrDir.open_repository."""
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from bzrlib.repository import RepositoryFormat5
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return RepositoryFormat5().open(self, _found=True)
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def open_workingtree(self, _unsupported=False):
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"""See BzrDir.create_workingtree."""
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from bzrlib.workingtree import WorkingTreeFormat2
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return WorkingTreeFormat2().open(self, _found=True)
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class BzrDir6(BzrDirPreSplitOut):
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"""A .bzr version 6 control object.
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This is a deprecated format and may be removed after sept 2006.
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def open_repository(self):
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"""See BzrDir.open_repository."""
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from bzrlib.repository import RepositoryFormat6
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return RepositoryFormat6().open(self, _found=True)
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def open_workingtree(self, _unsupported=False):
742
"""See BzrDir.create_workingtree."""
743
from bzrlib.workingtree import WorkingTreeFormat2
744
return WorkingTreeFormat2().open(self, _found=True)
747
class BzrDirMeta1(BzrDir):
748
"""A .bzr meta version 1 control object.
750
This is the first control object where the
751
individual aspects are really split out: there are separate repository,
752
workingtree and branch subdirectories and any subset of the three can be
753
present within a BzrDir.
756
def can_convert_format(self):
757
"""See BzrDir.can_convert_format()."""
760
def create_branch(self):
761
"""See BzrDir.create_branch."""
762
from bzrlib.branch import BranchFormat
763
return BranchFormat.get_default_format().initialize(self)
765
def create_repository(self, shared=False):
766
"""See BzrDir.create_repository."""
767
return self._format.repository_format.initialize(self, shared)
769
def create_workingtree(self, revision_id=None):
770
"""See BzrDir.create_workingtree."""
771
from bzrlib.workingtree import WorkingTreeFormat
772
return WorkingTreeFormat.get_default_format().initialize(self, revision_id)
774
def _get_mkdir_mode(self):
775
"""Figure out the mode to use when creating a bzrdir subdir."""
776
temp_control = LockableFiles(self.transport, '', TransportLock)
777
return temp_control._dir_mode
779
def get_branch_transport(self, branch_format):
780
"""See BzrDir.get_branch_transport()."""
781
if branch_format is None:
782
return self.transport.clone('branch')
784
branch_format.get_format_string()
785
except NotImplementedError:
786
raise errors.IncompatibleFormat(branch_format, self._format)
788
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
789
except errors.FileExists:
791
return self.transport.clone('branch')
793
def get_repository_transport(self, repository_format):
794
"""See BzrDir.get_repository_transport()."""
795
if repository_format is None:
796
return self.transport.clone('repository')
798
repository_format.get_format_string()
799
except NotImplementedError:
800
raise errors.IncompatibleFormat(repository_format, self._format)
802
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
803
except errors.FileExists:
805
return self.transport.clone('repository')
807
def get_workingtree_transport(self, workingtree_format):
808
"""See BzrDir.get_workingtree_transport()."""
809
if workingtree_format is None:
810
return self.transport.clone('checkout')
812
workingtree_format.get_format_string()
813
except NotImplementedError:
814
raise errors.IncompatibleFormat(workingtree_format, self._format)
816
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
817
except errors.FileExists:
819
return self.transport.clone('checkout')
821
def needs_format_conversion(self, format=None):
822
"""See BzrDir.needs_format_conversion()."""
824
format = BzrDirFormat.get_default_format()
825
if not isinstance(self._format, format.__class__):
826
# it is not a meta dir format, conversion is needed.
828
# we might want to push this down to the repository?
830
if not isinstance(self.open_repository()._format,
831
format.repository_format.__class__):
832
# the repository needs an upgrade.
834
except errors.NoRepositoryPresent:
836
# currently there are no other possible conversions for meta1 formats.
839
def open_branch(self, unsupported=False):
840
"""See BzrDir.open_branch."""
841
from bzrlib.branch import BranchFormat
842
format = BranchFormat.find_format(self)
843
self._check_supported(format, unsupported)
844
return format.open(self, _found=True)
846
def open_repository(self, unsupported=False):
847
"""See BzrDir.open_repository."""
848
from bzrlib.repository import RepositoryFormat
849
format = RepositoryFormat.find_format(self)
850
self._check_supported(format, unsupported)
851
return format.open(self, _found=True)
853
def open_workingtree(self, unsupported=False):
854
"""See BzrDir.open_workingtree."""
855
from bzrlib.workingtree import WorkingTreeFormat
856
format = WorkingTreeFormat.find_format(self)
857
self._check_supported(format, unsupported)
858
return format.open(self, _found=True)
861
class BzrDirFormat(object):
862
"""An encapsulation of the initialization and open routines for a format.
864
Formats provide three things:
865
* An initialization routine,
869
Formats are placed in an dict by their format string for reference
870
during bzrdir opening. These should be subclasses of BzrDirFormat
873
Once a format is deprecated, just deprecate the initialize and open
874
methods on the format class. Do not deprecate the object, as the
875
object will be created every system load.
878
_default_format = None
879
"""The default format used for new .bzr dirs."""
882
"""The known formats."""
884
_lock_file_name = 'branch-lock'
886
# _lock_class must be set in subclasses to the lock type, typ.
887
# TransportLock or LockDir
890
def find_format(klass, transport):
891
"""Return the format registered for URL."""
893
format_string = transport.get(".bzr/branch-format").read()
894
return klass._formats[format_string]
895
except errors.NoSuchFile:
896
raise errors.NotBranchError(path=transport.base)
898
raise errors.UnknownFormatError(format_string)
901
def get_default_format(klass):
902
"""Return the current default format."""
903
return klass._default_format
905
def get_format_string(self):
906
"""Return the ASCII format string that identifies this format."""
907
raise NotImplementedError(self.get_format_string)
909
def get_format_description(self):
910
"""Return the short description for this format."""
911
raise NotImplementedError(self.get_format_description)
913
def get_converter(self, format=None):
914
"""Return the converter to use to convert bzrdirs needing converts.
916
This returns a bzrlib.bzrdir.Converter object.
918
This should return the best upgrader to step this format towards the
919
current default format. In the case of plugins we can/shouold provide
920
some means for them to extend the range of returnable converters.
922
:param format: Optional format to override the default foramt of the
925
raise NotImplementedError(self.get_converter)
927
def initialize(self, url):
928
"""Create a bzr control dir at this url and return an opened copy.
930
Subclasses should typically override initialize_on_transport
931
instead of this method.
933
return self.initialize_on_transport(get_transport(url))
935
def initialize_on_transport(self, transport):
936
"""Initialize a new bzrdir in the base directory of a Transport."""
937
# Since we don'transport have a .bzr directory, inherit the
938
# mode from the root directory
939
temp_control = LockableFiles(transport, '', TransportLock)
940
temp_control._transport.mkdir('.bzr',
941
# FIXME: RBC 20060121 dont peek under
943
mode=temp_control._dir_mode)
944
file_mode = temp_control._file_mode
946
mutter('created control directory in ' + transport.base)
947
control = transport.clone('.bzr')
948
utf8_files = [('README',
949
"This is a Bazaar-NG control directory.\n"
950
"Do not change any files in this directory.\n"),
951
('branch-format', self.get_format_string()),
953
# NB: no need to escape relative paths that are url safe.
954
control_files = LockableFiles(control, self._lock_file_name,
956
control_files.create_lock()
957
control_files.lock_write()
959
for file, content in utf8_files:
960
control_files.put_utf8(file, content)
962
control_files.unlock()
963
return self.open(transport, _found=True)
965
def is_supported(self):
966
"""Is this format supported?
968
Supported formats must be initializable and openable.
969
Unsupported formats may not support initialization or committing or
970
some other features depending on the reason for not being supported.
974
def open(self, transport, _found=False):
975
"""Return an instance of this format for the dir transport points at.
977
_found is a private parameter, do not use it.
980
assert isinstance(BzrDirFormat.find_format(transport),
982
return self._open(transport)
984
def _open(self, transport):
985
"""Template method helper for opening BzrDirectories.
987
This performs the actual open and any additional logic or parameter
990
raise NotImplementedError(self._open)
993
def register_format(klass, format):
994
klass._formats[format.get_format_string()] = format
997
def set_default_format(klass, format):
998
klass._default_format = format
1001
return self.get_format_string()[:-1]
1004
def unregister_format(klass, format):
1005
assert klass._formats[format.get_format_string()] is format
1006
del klass._formats[format.get_format_string()]
1009
class BzrDirFormat4(BzrDirFormat):
1010
"""Bzr dir format 4.
1012
This format is a combined format for working tree, branch and repository.
1014
- Format 1 working trees [always]
1015
- Format 4 branches [always]
1016
- Format 4 repositories [always]
1018
This format is deprecated: it indexes texts using a text it which is
1019
removed in format 5; write support for this format has been removed.
1022
_lock_class = TransportLock
1024
def get_format_string(self):
1025
"""See BzrDirFormat.get_format_string()."""
1026
return "Bazaar-NG branch, format 0.0.4\n"
1028
def get_format_description(self):
1029
"""See BzrDirFormat.get_format_description()."""
1030
return "All-in-one format 4"
1032
def get_converter(self, format=None):
1033
"""See BzrDirFormat.get_converter()."""
1034
# there is one and only one upgrade path here.
1035
return ConvertBzrDir4To5()
1037
def initialize_on_transport(self, transport):
1038
"""Format 4 branches cannot be created."""
1039
raise errors.UninitializableFormat(self)
1041
def is_supported(self):
1042
"""Format 4 is not supported.
1044
It is not supported because the model changed from 4 to 5 and the
1045
conversion logic is expensive - so doing it on the fly was not
1050
def _open(self, transport):
1051
"""See BzrDirFormat._open."""
1052
return BzrDir4(transport, self)
1054
def __return_repository_format(self):
1055
"""Circular import protection."""
1056
from bzrlib.repository import RepositoryFormat4
1057
return RepositoryFormat4(self)
1058
repository_format = property(__return_repository_format)
1061
class BzrDirFormat5(BzrDirFormat):
1062
"""Bzr control format 5.
1064
This format is a combined format for working tree, branch and repository.
1066
- Format 2 working trees [always]
1067
- Format 4 branches [always]
1068
- Format 5 repositories [always]
1069
Unhashed stores in the repository.
1072
_lock_class = TransportLock
1074
def get_format_string(self):
1075
"""See BzrDirFormat.get_format_string()."""
1076
return "Bazaar-NG branch, format 5\n"
1078
def get_format_description(self):
1079
"""See BzrDirFormat.get_format_description()."""
1080
return "All-in-one format 5"
1082
def get_converter(self, format=None):
1083
"""See BzrDirFormat.get_converter()."""
1084
# there is one and only one upgrade path here.
1085
return ConvertBzrDir5To6()
1087
def _initialize_for_clone(self, url):
1088
return self.initialize_on_transport(get_transport(url), _cloning=True)
1090
def initialize_on_transport(self, transport, _cloning=False):
1091
"""Format 5 dirs always have working tree, branch and repository.
1093
Except when they are being cloned.
1095
from bzrlib.branch import BzrBranchFormat4
1096
from bzrlib.repository import RepositoryFormat5
1097
from bzrlib.workingtree import WorkingTreeFormat2
1098
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1099
RepositoryFormat5().initialize(result, _internal=True)
1101
BzrBranchFormat4().initialize(result)
1102
WorkingTreeFormat2().initialize(result)
1105
def _open(self, transport):
1106
"""See BzrDirFormat._open."""
1107
return BzrDir5(transport, self)
1109
def __return_repository_format(self):
1110
"""Circular import protection."""
1111
from bzrlib.repository import RepositoryFormat5
1112
return RepositoryFormat5(self)
1113
repository_format = property(__return_repository_format)
1116
class BzrDirFormat6(BzrDirFormat):
1117
"""Bzr control format 6.
1119
This format is a combined format for working tree, branch and repository.
1121
- Format 2 working trees [always]
1122
- Format 4 branches [always]
1123
- Format 6 repositories [always]
1126
_lock_class = TransportLock
1128
def get_format_string(self):
1129
"""See BzrDirFormat.get_format_string()."""
1130
return "Bazaar-NG branch, format 6\n"
1132
def get_format_description(self):
1133
"""See BzrDirFormat.get_format_description()."""
1134
return "All-in-one format 6"
1136
def get_converter(self, format=None):
1137
"""See BzrDirFormat.get_converter()."""
1138
# there is one and only one upgrade path here.
1139
return ConvertBzrDir6ToMeta()
1141
def _initialize_for_clone(self, url):
1142
return self.initialize_on_transport(get_transport(url), _cloning=True)
1144
def initialize_on_transport(self, transport, _cloning=False):
1145
"""Format 6 dirs always have working tree, branch and repository.
1147
Except when they are being cloned.
1149
from bzrlib.branch import BzrBranchFormat4
1150
from bzrlib.repository import RepositoryFormat6
1151
from bzrlib.workingtree import WorkingTreeFormat2
1152
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1153
RepositoryFormat6().initialize(result, _internal=True)
1155
BzrBranchFormat4().initialize(result)
1157
WorkingTreeFormat2().initialize(result)
1158
except errors.NotLocalUrl:
1159
# emulate pre-check behaviour for working tree and silently
1164
def _open(self, transport):
1165
"""See BzrDirFormat._open."""
1166
return BzrDir6(transport, self)
1168
def __return_repository_format(self):
1169
"""Circular import protection."""
1170
from bzrlib.repository import RepositoryFormat6
1171
return RepositoryFormat6(self)
1172
repository_format = property(__return_repository_format)
1175
class BzrDirMetaFormat1(BzrDirFormat):
1176
"""Bzr meta control format 1
1178
This is the first format with split out working tree, branch and repository
1181
- Format 3 working trees [optional]
1182
- Format 5 branches [optional]
1183
- Format 7 repositories [optional]
1186
_lock_class = LockDir
1188
def get_converter(self, format=None):
1189
"""See BzrDirFormat.get_converter()."""
1191
format = BzrDirFormat.get_default_format()
1192
if not isinstance(self, format.__class__):
1193
# converting away from metadir is not implemented
1194
raise NotImplementedError(self.get_converter)
1195
return ConvertMetaToMeta(format)
1197
def get_format_string(self):
1198
"""See BzrDirFormat.get_format_string()."""
1199
return "Bazaar-NG meta directory, format 1\n"
1201
def get_format_description(self):
1202
"""See BzrDirFormat.get_format_description()."""
1203
return "Meta directory format 1"
1205
def _open(self, transport):
1206
"""See BzrDirFormat._open."""
1207
return BzrDirMeta1(transport, self)
1209
def __return_repository_format(self):
1210
"""Circular import protection."""
1211
if getattr(self, '_repository_format', None):
1212
return self._repository_format
1213
from bzrlib.repository import RepositoryFormat
1214
return RepositoryFormat.get_default_format()
1216
def __set_repository_format(self, value):
1217
"""Allow changint the repository format for metadir formats."""
1218
self._repository_format = value
1220
repository_format = property(__return_repository_format, __set_repository_format)
1223
BzrDirFormat.register_format(BzrDirFormat4())
1224
BzrDirFormat.register_format(BzrDirFormat5())
1225
BzrDirFormat.register_format(BzrDirFormat6())
1226
__default_format = BzrDirMetaFormat1()
1227
BzrDirFormat.register_format(__default_format)
1228
BzrDirFormat.set_default_format(__default_format)
1231
class BzrDirTestProviderAdapter(object):
1232
"""A tool to generate a suite testing multiple bzrdir formats at once.
1234
This is done by copying the test once for each transport and injecting
1235
the transport_server, transport_readonly_server, and bzrdir_format
1236
classes into each copy. Each copy is also given a new id() to make it
1240
def __init__(self, transport_server, transport_readonly_server, formats):
1241
self._transport_server = transport_server
1242
self._transport_readonly_server = transport_readonly_server
1243
self._formats = formats
1245
def adapt(self, test):
1246
result = TestSuite()
1247
for format in self._formats:
1248
new_test = deepcopy(test)
1249
new_test.transport_server = self._transport_server
1250
new_test.transport_readonly_server = self._transport_readonly_server
1251
new_test.bzrdir_format = format
1252
def make_new_test_id():
1253
new_id = "%s(%s)" % (new_test.id(), format.__class__.__name__)
1254
return lambda: new_id
1255
new_test.id = make_new_test_id()
1256
result.addTest(new_test)
1260
class ScratchDir(BzrDir6):
1261
"""Special test class: a bzrdir that cleans up itself..
1263
>>> d = ScratchDir()
1264
>>> base = d.transport.base
1267
>>> b.transport.__del__()
1272
def __init__(self, files=[], dirs=[], transport=None):
1273
"""Make a test branch.
1275
This creates a temporary directory and runs init-tree in it.
1277
If any files are listed, they are created in the working copy.
1279
if transport is None:
1280
transport = bzrlib.transport.local.ScratchTransport()
1281
# local import for scope restriction
1282
BzrDirFormat6().initialize(transport.base)
1283
super(ScratchDir, self).__init__(transport, BzrDirFormat6())
1284
self.create_repository()
1285
self.create_branch()
1286
self.create_workingtree()
1288
super(ScratchDir, self).__init__(transport, BzrDirFormat6())
1290
# BzrBranch creates a clone to .bzr and then forgets about the
1291
# original transport. A ScratchTransport() deletes itself and
1292
# everything underneath it when it goes away, so we need to
1293
# grab a local copy to prevent that from happening
1294
self._transport = transport
1297
self._transport.mkdir(d)
1300
self._transport.put(f, 'content of %s' % f)
1304
>>> orig = ScratchDir(files=["file1", "file2"])
1305
>>> os.listdir(orig.base)
1306
[u'.bzr', u'file1', u'file2']
1307
>>> clone = orig.clone()
1308
>>> if os.name != 'nt':
1309
... os.path.samefile(orig.base, clone.base)
1311
... orig.base == clone.base
1314
>>> os.listdir(clone.base)
1315
[u'.bzr', u'file1', u'file2']
1317
from shutil import copytree
1318
from bzrlib.osutils import mkdtemp
1321
copytree(self.base, base, symlinks=True)
1323
transport=bzrlib.transport.local.ScratchTransport(base))
1326
class Converter(object):
1327
"""Converts a disk format object from one format to another."""
1329
def convert(self, to_convert, pb):
1330
"""Perform the conversion of to_convert, giving feedback via pb.
1332
:param to_convert: The disk object to convert.
1333
:param pb: a progress bar to use for progress information.
1336
def step(self, message):
1337
"""Update the pb by a step."""
1339
self.pb.update(message, self.count, self.total)
1342
class ConvertBzrDir4To5(Converter):
1343
"""Converts format 4 bzr dirs to format 5."""
1346
super(ConvertBzrDir4To5, self).__init__()
1347
self.converted_revs = set()
1348
self.absent_revisions = set()
1352
def convert(self, to_convert, pb):
1353
"""See Converter.convert()."""
1354
self.bzrdir = to_convert
1356
self.pb.note('starting upgrade from format 4 to 5')
1357
if isinstance(self.bzrdir.transport, LocalTransport):
1358
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1359
self._convert_to_weaves()
1360
return BzrDir.open(self.bzrdir.root_transport.base)
1362
def _convert_to_weaves(self):
1363
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1366
stat = self.bzrdir.transport.stat('weaves')
1367
if not S_ISDIR(stat.st_mode):
1368
self.bzrdir.transport.delete('weaves')
1369
self.bzrdir.transport.mkdir('weaves')
1370
except errors.NoSuchFile:
1371
self.bzrdir.transport.mkdir('weaves')
1372
# deliberately not a WeaveFile as we want to build it up slowly.
1373
self.inv_weave = Weave('inventory')
1374
# holds in-memory weaves for all files
1375
self.text_weaves = {}
1376
self.bzrdir.transport.delete('branch-format')
1377
self.branch = self.bzrdir.open_branch()
1378
self._convert_working_inv()
1379
rev_history = self.branch.revision_history()
1380
# to_read is a stack holding the revisions we still need to process;
1381
# appending to it adds new highest-priority revisions
1382
self.known_revisions = set(rev_history)
1383
self.to_read = rev_history[-1:]
1385
rev_id = self.to_read.pop()
1386
if (rev_id not in self.revisions
1387
and rev_id not in self.absent_revisions):
1388
self._load_one_rev(rev_id)
1390
to_import = self._make_order()
1391
for i, rev_id in enumerate(to_import):
1392
self.pb.update('converting revision', i, len(to_import))
1393
self._convert_one_rev(rev_id)
1395
self._write_all_weaves()
1396
self._write_all_revs()
1397
self.pb.note('upgraded to weaves:')
1398
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1399
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
1400
self.pb.note(' %6d texts', self.text_count)
1401
self._cleanup_spare_files_after_format4()
1402
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
1404
def _cleanup_spare_files_after_format4(self):
1405
# FIXME working tree upgrade foo.
1406
for n in 'merged-patches', 'pending-merged-patches':
1408
## assert os.path.getsize(p) == 0
1409
self.bzrdir.transport.delete(n)
1410
except errors.NoSuchFile:
1412
self.bzrdir.transport.delete_tree('inventory-store')
1413
self.bzrdir.transport.delete_tree('text-store')
1415
def _convert_working_inv(self):
1416
inv = serializer_v4.read_inventory(self.branch.control_files.get('inventory'))
1417
new_inv_xml = serializer_v5.write_inventory_to_string(inv)
1418
# FIXME inventory is a working tree change.
1419
self.branch.control_files.put('inventory', new_inv_xml)
1421
def _write_all_weaves(self):
1422
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
1423
weave_transport = self.bzrdir.transport.clone('weaves')
1424
weaves = WeaveStore(weave_transport, prefixed=False)
1425
transaction = WriteTransaction()
1429
for file_id, file_weave in self.text_weaves.items():
1430
self.pb.update('writing weave', i, len(self.text_weaves))
1431
weaves._put_weave(file_id, file_weave, transaction)
1433
self.pb.update('inventory', 0, 1)
1434
controlweaves._put_weave('inventory', self.inv_weave, transaction)
1435
self.pb.update('inventory', 1, 1)
1439
def _write_all_revs(self):
1440
"""Write all revisions out in new form."""
1441
self.bzrdir.transport.delete_tree('revision-store')
1442
self.bzrdir.transport.mkdir('revision-store')
1443
revision_transport = self.bzrdir.transport.clone('revision-store')
1445
_revision_store = TextRevisionStore(TextStore(revision_transport,
1449
transaction = bzrlib.transactions.WriteTransaction()
1450
for i, rev_id in enumerate(self.converted_revs):
1451
self.pb.update('write revision', i, len(self.converted_revs))
1452
_revision_store.add_revision(self.revisions[rev_id], transaction)
1456
def _load_one_rev(self, rev_id):
1457
"""Load a revision object into memory.
1459
Any parents not either loaded or abandoned get queued to be
1461
self.pb.update('loading revision',
1462
len(self.revisions),
1463
len(self.known_revisions))
1464
if not self.branch.repository.has_revision(rev_id):
1466
self.pb.note('revision {%s} not present in branch; '
1467
'will be converted as a ghost',
1469
self.absent_revisions.add(rev_id)
1471
rev = self.branch.repository._revision_store.get_revision(rev_id,
1472
self.branch.repository.get_transaction())
1473
for parent_id in rev.parent_ids:
1474
self.known_revisions.add(parent_id)
1475
self.to_read.append(parent_id)
1476
self.revisions[rev_id] = rev
1478
def _load_old_inventory(self, rev_id):
1479
assert rev_id not in self.converted_revs
1480
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
1481
inv = serializer_v4.read_inventory_from_string(old_inv_xml)
1482
rev = self.revisions[rev_id]
1483
if rev.inventory_sha1:
1484
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
1485
'inventory sha mismatch for {%s}' % rev_id
1488
def _load_updated_inventory(self, rev_id):
1489
assert rev_id in self.converted_revs
1490
inv_xml = self.inv_weave.get_text(rev_id)
1491
inv = serializer_v5.read_inventory_from_string(inv_xml)
1494
def _convert_one_rev(self, rev_id):
1495
"""Convert revision and all referenced objects to new format."""
1496
rev = self.revisions[rev_id]
1497
inv = self._load_old_inventory(rev_id)
1498
present_parents = [p for p in rev.parent_ids
1499
if p not in self.absent_revisions]
1500
self._convert_revision_contents(rev, inv, present_parents)
1501
self._store_new_weave(rev, inv, present_parents)
1502
self.converted_revs.add(rev_id)
1504
def _store_new_weave(self, rev, inv, present_parents):
1505
# the XML is now updated with text versions
1509
if ie.kind == 'root_directory':
1511
assert hasattr(ie, 'revision'), \
1512
'no revision on {%s} in {%s}' % \
1513
(file_id, rev.revision_id)
1514
new_inv_xml = serializer_v5.write_inventory_to_string(inv)
1515
new_inv_sha1 = sha_string(new_inv_xml)
1516
self.inv_weave.add_lines(rev.revision_id,
1518
new_inv_xml.splitlines(True))
1519
rev.inventory_sha1 = new_inv_sha1
1521
def _convert_revision_contents(self, rev, inv, present_parents):
1522
"""Convert all the files within a revision.
1524
Also upgrade the inventory to refer to the text revision ids."""
1525
rev_id = rev.revision_id
1526
mutter('converting texts of revision {%s}',
1528
parent_invs = map(self._load_updated_inventory, present_parents)
1531
self._convert_file_version(rev, ie, parent_invs)
1533
def _convert_file_version(self, rev, ie, parent_invs):
1534
"""Convert one version of one file.
1536
The file needs to be added into the weave if it is a merge
1537
of >=2 parents or if it's changed from its parent.
1539
if ie.kind == 'root_directory':
1541
file_id = ie.file_id
1542
rev_id = rev.revision_id
1543
w = self.text_weaves.get(file_id)
1546
self.text_weaves[file_id] = w
1547
text_changed = False
1548
previous_entries = ie.find_previous_heads(parent_invs,
1552
for old_revision in previous_entries:
1553
# if this fails, its a ghost ?
1554
assert old_revision in self.converted_revs
1555
self.snapshot_ie(previous_entries, ie, w, rev_id)
1557
assert getattr(ie, 'revision', None) is not None
1559
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
1560
# TODO: convert this logic, which is ~= snapshot to
1561
# a call to:. This needs the path figured out. rather than a work_tree
1562
# a v4 revision_tree can be given, or something that looks enough like
1563
# one to give the file content to the entry if it needs it.
1564
# and we need something that looks like a weave store for snapshot to
1566
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
1567
if len(previous_revisions) == 1:
1568
previous_ie = previous_revisions.values()[0]
1569
if ie._unchanged(previous_ie):
1570
ie.revision = previous_ie.revision
1573
text = self.branch.repository.text_store.get(ie.text_id)
1574
file_lines = text.readlines()
1575
assert sha_strings(file_lines) == ie.text_sha1
1576
assert sum(map(len, file_lines)) == ie.text_size
1577
w.add_lines(rev_id, previous_revisions, file_lines)
1578
self.text_count += 1
1580
w.add_lines(rev_id, previous_revisions, [])
1581
ie.revision = rev_id
1583
def _make_order(self):
1584
"""Return a suitable order for importing revisions.
1586
The order must be such that an revision is imported after all
1587
its (present) parents.
1589
todo = set(self.revisions.keys())
1590
done = self.absent_revisions.copy()
1593
# scan through looking for a revision whose parents
1595
for rev_id in sorted(list(todo)):
1596
rev = self.revisions[rev_id]
1597
parent_ids = set(rev.parent_ids)
1598
if parent_ids.issubset(done):
1599
# can take this one now
1600
order.append(rev_id)
1606
class ConvertBzrDir5To6(Converter):
1607
"""Converts format 5 bzr dirs to format 6."""
1609
def convert(self, to_convert, pb):
1610
"""See Converter.convert()."""
1611
self.bzrdir = to_convert
1613
self.pb.note('starting upgrade from format 5 to 6')
1614
self._convert_to_prefixed()
1615
return BzrDir.open(self.bzrdir.root_transport.base)
1617
def _convert_to_prefixed(self):
1618
from bzrlib.store import TransportStore
1619
self.bzrdir.transport.delete('branch-format')
1620
for store_name in ["weaves", "revision-store"]:
1621
self.pb.note("adding prefixes to %s" % store_name)
1622
store_transport = self.bzrdir.transport.clone(store_name)
1623
store = TransportStore(store_transport, prefixed=True)
1624
for urlfilename in store_transport.list_dir('.'):
1625
filename = urlunescape(urlfilename)
1626
if (filename.endswith(".weave") or
1627
filename.endswith(".gz") or
1628
filename.endswith(".sig")):
1629
file_id = os.path.splitext(filename)[0]
1632
prefix_dir = store.hash_prefix(file_id)
1633
# FIXME keep track of the dirs made RBC 20060121
1635
store_transport.move(filename, prefix_dir + '/' + filename)
1636
except errors.NoSuchFile: # catches missing dirs strangely enough
1637
store_transport.mkdir(prefix_dir)
1638
store_transport.move(filename, prefix_dir + '/' + filename)
1639
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
1642
class ConvertBzrDir6ToMeta(Converter):
1643
"""Converts format 6 bzr dirs to metadirs."""
1645
def convert(self, to_convert, pb):
1646
"""See Converter.convert()."""
1647
self.bzrdir = to_convert
1650
self.total = 20 # the steps we know about
1651
self.garbage_inventories = []
1653
self.pb.note('starting upgrade from format 6 to metadir')
1654
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
1655
# its faster to move specific files around than to open and use the apis...
1656
# first off, nuke ancestry.weave, it was never used.
1658
self.step('Removing ancestry.weave')
1659
self.bzrdir.transport.delete('ancestry.weave')
1660
except errors.NoSuchFile:
1662
# find out whats there
1663
self.step('Finding branch files')
1664
last_revision = self.bzrdir.open_branch().last_revision()
1665
bzrcontents = self.bzrdir.transport.list_dir('.')
1666
for name in bzrcontents:
1667
if name.startswith('basis-inventory.'):
1668
self.garbage_inventories.append(name)
1669
# create new directories for repository, working tree and branch
1670
self.dir_mode = self.bzrdir._control_files._dir_mode
1671
self.file_mode = self.bzrdir._control_files._file_mode
1672
repository_names = [('inventory.weave', True),
1673
('revision-store', True),
1675
self.step('Upgrading repository ')
1676
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
1677
self.make_lock('repository')
1678
# we hard code the formats here because we are converting into
1679
# the meta format. The meta format upgrader can take this to a
1680
# future format within each component.
1681
self.put_format('repository', bzrlib.repository.RepositoryFormat7())
1682
for entry in repository_names:
1683
self.move_entry('repository', entry)
1685
self.step('Upgrading branch ')
1686
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
1687
self.make_lock('branch')
1688
self.put_format('branch', bzrlib.branch.BzrBranchFormat5())
1689
branch_files = [('revision-history', True),
1690
('branch-name', True),
1692
for entry in branch_files:
1693
self.move_entry('branch', entry)
1695
self.step('Upgrading working tree')
1696
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
1697
self.make_lock('checkout')
1698
self.put_format('checkout', bzrlib.workingtree.WorkingTreeFormat3())
1699
self.bzrdir.transport.delete_multi(self.garbage_inventories, self.pb)
1700
checkout_files = [('pending-merges', True),
1701
('inventory', True),
1702
('stat-cache', False)]
1703
for entry in checkout_files:
1704
self.move_entry('checkout', entry)
1705
if last_revision is not None:
1706
self.bzrdir._control_files.put_utf8('checkout/last-revision',
1708
self.bzrdir._control_files.put_utf8('branch-format', BzrDirMetaFormat1().get_format_string())
1709
return BzrDir.open(self.bzrdir.root_transport.base)
1711
def make_lock(self, name):
1712
"""Make a lock for the new control dir name."""
1713
self.step('Make %s lock' % name)
1714
ld = LockDir(self.bzrdir.transport,
1716
file_modebits=self.file_mode,
1717
dir_modebits=self.dir_mode)
1720
def move_entry(self, new_dir, entry):
1721
"""Move then entry name into new_dir."""
1723
mandatory = entry[1]
1724
self.step('Moving %s' % name)
1726
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
1727
except errors.NoSuchFile:
1731
def put_format(self, dirname, format):
1732
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
1735
class ConvertMetaToMeta(Converter):
1736
"""Converts the components of metadirs."""
1738
def __init__(self, target_format):
1739
"""Create a metadir to metadir converter.
1741
:param target_format: The final metadir format that is desired.
1743
self.target_format = target_format
1745
def convert(self, to_convert, pb):
1746
"""See Converter.convert()."""
1747
self.bzrdir = to_convert
1751
self.step('checking repository format')
1753
repo = self.bzrdir.open_repository()
1754
except errors.NoRepositoryPresent:
1757
if not isinstance(repo._format, self.target_format.repository_format.__class__):
1758
from bzrlib.repository import CopyConverter
1759
self.pb.note('starting repository conversion')
1760
converter = CopyConverter(self.target_format.repository_format)
1761
converter.convert(repo, pb)