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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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"""Invoke break_lock on the first object in the bzrdir.
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If there is a tree, the tree is opened and break_lock() called.
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Otherwise, branch is tried, and finally repository.
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thing_to_unlock = self.open_workingtree()
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except (errors.NotLocalUrl, errors.NoWorkingTree):
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thing_to_unlock = self.open_branch()
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except errors.NotBranchError:
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thing_to_unlock = self.open_repository()
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except errors.NoRepositoryPresent:
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thing_to_unlock.break_lock()
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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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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 break_lock(self):
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"""Pre-splitout bzrdirs do not suffer from stale locks."""
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raise NotImplementedError(self.break_lock)
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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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from_branch = self.open_branch()
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from_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 cannot do it for remote trees.
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to_branch = result.open_branch()
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WorkingTreeFormat2().stub_initialize_remote(to_branch.control_files)
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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
744
return RepositoryFormat5().open(self, _found=True)
746
def open_workingtree(self, _unsupported=False):
747
"""See BzrDir.create_workingtree."""
748
from bzrlib.workingtree import WorkingTreeFormat2
749
return WorkingTreeFormat2().open(self, _found=True)
752
class BzrDir6(BzrDirPreSplitOut):
753
"""A .bzr version 6 control object.
755
This is a deprecated format and may be removed after sept 2006.
758
def open_repository(self):
759
"""See BzrDir.open_repository."""
760
from bzrlib.repository import RepositoryFormat6
761
return RepositoryFormat6().open(self, _found=True)
763
def open_workingtree(self, _unsupported=False):
764
"""See BzrDir.create_workingtree."""
765
from bzrlib.workingtree import WorkingTreeFormat2
766
return WorkingTreeFormat2().open(self, _found=True)
769
class BzrDirMeta1(BzrDir):
770
"""A .bzr meta version 1 control object.
772
This is the first control object where the
773
individual aspects are really split out: there are separate repository,
774
workingtree and branch subdirectories and any subset of the three can be
775
present within a BzrDir.
778
def can_convert_format(self):
779
"""See BzrDir.can_convert_format()."""
782
def create_branch(self):
783
"""See BzrDir.create_branch."""
784
from bzrlib.branch import BranchFormat
785
return BranchFormat.get_default_format().initialize(self)
787
def create_repository(self, shared=False):
788
"""See BzrDir.create_repository."""
789
return self._format.repository_format.initialize(self, shared)
791
def create_workingtree(self, revision_id=None):
792
"""See BzrDir.create_workingtree."""
793
from bzrlib.workingtree import WorkingTreeFormat
794
return WorkingTreeFormat.get_default_format().initialize(self, revision_id)
796
def _get_mkdir_mode(self):
797
"""Figure out the mode to use when creating a bzrdir subdir."""
798
temp_control = LockableFiles(self.transport, '', TransportLock)
799
return temp_control._dir_mode
801
def get_branch_transport(self, branch_format):
802
"""See BzrDir.get_branch_transport()."""
803
if branch_format is None:
804
return self.transport.clone('branch')
806
branch_format.get_format_string()
807
except NotImplementedError:
808
raise errors.IncompatibleFormat(branch_format, self._format)
810
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
811
except errors.FileExists:
813
return self.transport.clone('branch')
815
def get_repository_transport(self, repository_format):
816
"""See BzrDir.get_repository_transport()."""
817
if repository_format is None:
818
return self.transport.clone('repository')
820
repository_format.get_format_string()
821
except NotImplementedError:
822
raise errors.IncompatibleFormat(repository_format, self._format)
824
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
825
except errors.FileExists:
827
return self.transport.clone('repository')
829
def get_workingtree_transport(self, workingtree_format):
830
"""See BzrDir.get_workingtree_transport()."""
831
if workingtree_format is None:
832
return self.transport.clone('checkout')
834
workingtree_format.get_format_string()
835
except NotImplementedError:
836
raise errors.IncompatibleFormat(workingtree_format, self._format)
838
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
839
except errors.FileExists:
841
return self.transport.clone('checkout')
843
def needs_format_conversion(self, format=None):
844
"""See BzrDir.needs_format_conversion()."""
846
format = BzrDirFormat.get_default_format()
847
if not isinstance(self._format, format.__class__):
848
# it is not a meta dir format, conversion is needed.
850
# we might want to push this down to the repository?
852
if not isinstance(self.open_repository()._format,
853
format.repository_format.__class__):
854
# the repository needs an upgrade.
856
except errors.NoRepositoryPresent:
858
# currently there are no other possible conversions for meta1 formats.
861
def open_branch(self, unsupported=False):
862
"""See BzrDir.open_branch."""
863
from bzrlib.branch import BranchFormat
864
format = BranchFormat.find_format(self)
865
self._check_supported(format, unsupported)
866
return format.open(self, _found=True)
868
def open_repository(self, unsupported=False):
869
"""See BzrDir.open_repository."""
870
from bzrlib.repository import RepositoryFormat
871
format = RepositoryFormat.find_format(self)
872
self._check_supported(format, unsupported)
873
return format.open(self, _found=True)
875
def open_workingtree(self, unsupported=False):
876
"""See BzrDir.open_workingtree."""
877
from bzrlib.workingtree import WorkingTreeFormat
878
format = WorkingTreeFormat.find_format(self)
879
self._check_supported(format, unsupported)
880
return format.open(self, _found=True)
883
class BzrDirFormat(object):
884
"""An encapsulation of the initialization and open routines for a format.
886
Formats provide three things:
887
* An initialization routine,
891
Formats are placed in an dict by their format string for reference
892
during bzrdir opening. These should be subclasses of BzrDirFormat
895
Once a format is deprecated, just deprecate the initialize and open
896
methods on the format class. Do not deprecate the object, as the
897
object will be created every system load.
900
_default_format = None
901
"""The default format used for new .bzr dirs."""
904
"""The known formats."""
906
_lock_file_name = 'branch-lock'
908
# _lock_class must be set in subclasses to the lock type, typ.
909
# TransportLock or LockDir
912
def find_format(klass, transport):
913
"""Return the format registered for URL."""
915
format_string = transport.get(".bzr/branch-format").read()
916
return klass._formats[format_string]
917
except errors.NoSuchFile:
918
raise errors.NotBranchError(path=transport.base)
920
raise errors.UnknownFormatError(format_string)
923
def get_default_format(klass):
924
"""Return the current default format."""
925
return klass._default_format
927
def get_format_string(self):
928
"""Return the ASCII format string that identifies this format."""
929
raise NotImplementedError(self.get_format_string)
931
def get_format_description(self):
932
"""Return the short description for this format."""
933
raise NotImplementedError(self.get_format_description)
935
def get_converter(self, format=None):
936
"""Return the converter to use to convert bzrdirs needing converts.
938
This returns a bzrlib.bzrdir.Converter object.
940
This should return the best upgrader to step this format towards the
941
current default format. In the case of plugins we can/shouold provide
942
some means for them to extend the range of returnable converters.
944
:param format: Optional format to override the default foramt of the
947
raise NotImplementedError(self.get_converter)
949
def initialize(self, url):
950
"""Create a bzr control dir at this url and return an opened copy.
952
Subclasses should typically override initialize_on_transport
953
instead of this method.
955
return self.initialize_on_transport(get_transport(url))
957
def initialize_on_transport(self, transport):
958
"""Initialize a new bzrdir in the base directory of a Transport."""
959
# Since we don'transport have a .bzr directory, inherit the
960
# mode from the root directory
961
temp_control = LockableFiles(transport, '', TransportLock)
962
temp_control._transport.mkdir('.bzr',
963
# FIXME: RBC 20060121 dont peek under
965
mode=temp_control._dir_mode)
966
file_mode = temp_control._file_mode
968
mutter('created control directory in ' + transport.base)
969
control = transport.clone('.bzr')
970
utf8_files = [('README',
971
"This is a Bazaar-NG control directory.\n"
972
"Do not change any files in this directory.\n"),
973
('branch-format', self.get_format_string()),
975
# NB: no need to escape relative paths that are url safe.
976
control_files = LockableFiles(control, self._lock_file_name,
978
control_files.create_lock()
979
control_files.lock_write()
981
for file, content in utf8_files:
982
control_files.put_utf8(file, content)
984
control_files.unlock()
985
return self.open(transport, _found=True)
987
def is_supported(self):
988
"""Is this format supported?
990
Supported formats must be initializable and openable.
991
Unsupported formats may not support initialization or committing or
992
some other features depending on the reason for not being supported.
996
def open(self, transport, _found=False):
997
"""Return an instance of this format for the dir transport points at.
999
_found is a private parameter, do not use it.
1002
assert isinstance(BzrDirFormat.find_format(transport),
1004
return self._open(transport)
1006
def _open(self, transport):
1007
"""Template method helper for opening BzrDirectories.
1009
This performs the actual open and any additional logic or parameter
1012
raise NotImplementedError(self._open)
1015
def register_format(klass, format):
1016
klass._formats[format.get_format_string()] = format
1019
def set_default_format(klass, format):
1020
klass._default_format = format
1023
return self.get_format_string()[:-1]
1026
def unregister_format(klass, format):
1027
assert klass._formats[format.get_format_string()] is format
1028
del klass._formats[format.get_format_string()]
1031
class BzrDirFormat4(BzrDirFormat):
1032
"""Bzr dir format 4.
1034
This format is a combined format for working tree, branch and repository.
1036
- Format 1 working trees [always]
1037
- Format 4 branches [always]
1038
- Format 4 repositories [always]
1040
This format is deprecated: it indexes texts using a text it which is
1041
removed in format 5; write support for this format has been removed.
1044
_lock_class = TransportLock
1046
def get_format_string(self):
1047
"""See BzrDirFormat.get_format_string()."""
1048
return "Bazaar-NG branch, format 0.0.4\n"
1050
def get_format_description(self):
1051
"""See BzrDirFormat.get_format_description()."""
1052
return "All-in-one format 4"
1054
def get_converter(self, format=None):
1055
"""See BzrDirFormat.get_converter()."""
1056
# there is one and only one upgrade path here.
1057
return ConvertBzrDir4To5()
1059
def initialize_on_transport(self, transport):
1060
"""Format 4 branches cannot be created."""
1061
raise errors.UninitializableFormat(self)
1063
def is_supported(self):
1064
"""Format 4 is not supported.
1066
It is not supported because the model changed from 4 to 5 and the
1067
conversion logic is expensive - so doing it on the fly was not
1072
def _open(self, transport):
1073
"""See BzrDirFormat._open."""
1074
return BzrDir4(transport, self)
1076
def __return_repository_format(self):
1077
"""Circular import protection."""
1078
from bzrlib.repository import RepositoryFormat4
1079
return RepositoryFormat4(self)
1080
repository_format = property(__return_repository_format)
1083
class BzrDirFormat5(BzrDirFormat):
1084
"""Bzr control format 5.
1086
This format is a combined format for working tree, branch and repository.
1088
- Format 2 working trees [always]
1089
- Format 4 branches [always]
1090
- Format 5 repositories [always]
1091
Unhashed stores in the repository.
1094
_lock_class = TransportLock
1096
def get_format_string(self):
1097
"""See BzrDirFormat.get_format_string()."""
1098
return "Bazaar-NG branch, format 5\n"
1100
def get_format_description(self):
1101
"""See BzrDirFormat.get_format_description()."""
1102
return "All-in-one format 5"
1104
def get_converter(self, format=None):
1105
"""See BzrDirFormat.get_converter()."""
1106
# there is one and only one upgrade path here.
1107
return ConvertBzrDir5To6()
1109
def _initialize_for_clone(self, url):
1110
return self.initialize_on_transport(get_transport(url), _cloning=True)
1112
def initialize_on_transport(self, transport, _cloning=False):
1113
"""Format 5 dirs always have working tree, branch and repository.
1115
Except when they are being cloned.
1117
from bzrlib.branch import BzrBranchFormat4
1118
from bzrlib.repository import RepositoryFormat5
1119
from bzrlib.workingtree import WorkingTreeFormat2
1120
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1121
RepositoryFormat5().initialize(result, _internal=True)
1123
BzrBranchFormat4().initialize(result)
1124
WorkingTreeFormat2().initialize(result)
1127
def _open(self, transport):
1128
"""See BzrDirFormat._open."""
1129
return BzrDir5(transport, self)
1131
def __return_repository_format(self):
1132
"""Circular import protection."""
1133
from bzrlib.repository import RepositoryFormat5
1134
return RepositoryFormat5(self)
1135
repository_format = property(__return_repository_format)
1138
class BzrDirFormat6(BzrDirFormat):
1139
"""Bzr control format 6.
1141
This format is a combined format for working tree, branch and repository.
1143
- Format 2 working trees [always]
1144
- Format 4 branches [always]
1145
- Format 6 repositories [always]
1148
_lock_class = TransportLock
1150
def get_format_string(self):
1151
"""See BzrDirFormat.get_format_string()."""
1152
return "Bazaar-NG branch, format 6\n"
1154
def get_format_description(self):
1155
"""See BzrDirFormat.get_format_description()."""
1156
return "All-in-one format 6"
1158
def get_converter(self, format=None):
1159
"""See BzrDirFormat.get_converter()."""
1160
# there is one and only one upgrade path here.
1161
return ConvertBzrDir6ToMeta()
1163
def _initialize_for_clone(self, url):
1164
return self.initialize_on_transport(get_transport(url), _cloning=True)
1166
def initialize_on_transport(self, transport, _cloning=False):
1167
"""Format 6 dirs always have working tree, branch and repository.
1169
Except when they are being cloned.
1171
from bzrlib.branch import BzrBranchFormat4
1172
from bzrlib.repository import RepositoryFormat6
1173
from bzrlib.workingtree import WorkingTreeFormat2
1174
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1175
RepositoryFormat6().initialize(result, _internal=True)
1177
BzrBranchFormat4().initialize(result)
1179
WorkingTreeFormat2().initialize(result)
1180
except errors.NotLocalUrl:
1181
# emulate pre-check behaviour for working tree and silently
1186
def _open(self, transport):
1187
"""See BzrDirFormat._open."""
1188
return BzrDir6(transport, self)
1190
def __return_repository_format(self):
1191
"""Circular import protection."""
1192
from bzrlib.repository import RepositoryFormat6
1193
return RepositoryFormat6(self)
1194
repository_format = property(__return_repository_format)
1197
class BzrDirMetaFormat1(BzrDirFormat):
1198
"""Bzr meta control format 1
1200
This is the first format with split out working tree, branch and repository
1203
- Format 3 working trees [optional]
1204
- Format 5 branches [optional]
1205
- Format 7 repositories [optional]
1208
_lock_class = LockDir
1210
def get_converter(self, format=None):
1211
"""See BzrDirFormat.get_converter()."""
1213
format = BzrDirFormat.get_default_format()
1214
if not isinstance(self, format.__class__):
1215
# converting away from metadir is not implemented
1216
raise NotImplementedError(self.get_converter)
1217
return ConvertMetaToMeta(format)
1219
def get_format_string(self):
1220
"""See BzrDirFormat.get_format_string()."""
1221
return "Bazaar-NG meta directory, format 1\n"
1223
def get_format_description(self):
1224
"""See BzrDirFormat.get_format_description()."""
1225
return "Meta directory format 1"
1227
def _open(self, transport):
1228
"""See BzrDirFormat._open."""
1229
return BzrDirMeta1(transport, self)
1231
def __return_repository_format(self):
1232
"""Circular import protection."""
1233
if getattr(self, '_repository_format', None):
1234
return self._repository_format
1235
from bzrlib.repository import RepositoryFormat
1236
return RepositoryFormat.get_default_format()
1238
def __set_repository_format(self, value):
1239
"""Allow changint the repository format for metadir formats."""
1240
self._repository_format = value
1242
repository_format = property(__return_repository_format, __set_repository_format)
1245
BzrDirFormat.register_format(BzrDirFormat4())
1246
BzrDirFormat.register_format(BzrDirFormat5())
1247
BzrDirFormat.register_format(BzrDirFormat6())
1248
__default_format = BzrDirMetaFormat1()
1249
BzrDirFormat.register_format(__default_format)
1250
BzrDirFormat.set_default_format(__default_format)
1253
class BzrDirTestProviderAdapter(object):
1254
"""A tool to generate a suite testing multiple bzrdir formats at once.
1256
This is done by copying the test once for each transport and injecting
1257
the transport_server, transport_readonly_server, and bzrdir_format
1258
classes into each copy. Each copy is also given a new id() to make it
1262
def __init__(self, transport_server, transport_readonly_server, formats):
1263
self._transport_server = transport_server
1264
self._transport_readonly_server = transport_readonly_server
1265
self._formats = formats
1267
def adapt(self, test):
1268
result = TestSuite()
1269
for format in self._formats:
1270
new_test = deepcopy(test)
1271
new_test.transport_server = self._transport_server
1272
new_test.transport_readonly_server = self._transport_readonly_server
1273
new_test.bzrdir_format = format
1274
def make_new_test_id():
1275
new_id = "%s(%s)" % (new_test.id(), format.__class__.__name__)
1276
return lambda: new_id
1277
new_test.id = make_new_test_id()
1278
result.addTest(new_test)
1282
class ScratchDir(BzrDir6):
1283
"""Special test class: a bzrdir that cleans up itself..
1285
>>> d = ScratchDir()
1286
>>> base = d.transport.base
1289
>>> b.transport.__del__()
1294
def __init__(self, files=[], dirs=[], transport=None):
1295
"""Make a test branch.
1297
This creates a temporary directory and runs init-tree in it.
1299
If any files are listed, they are created in the working copy.
1301
if transport is None:
1302
transport = bzrlib.transport.local.ScratchTransport()
1303
# local import for scope restriction
1304
BzrDirFormat6().initialize(transport.base)
1305
super(ScratchDir, self).__init__(transport, BzrDirFormat6())
1306
self.create_repository()
1307
self.create_branch()
1308
self.create_workingtree()
1310
super(ScratchDir, self).__init__(transport, BzrDirFormat6())
1312
# BzrBranch creates a clone to .bzr and then forgets about the
1313
# original transport. A ScratchTransport() deletes itself and
1314
# everything underneath it when it goes away, so we need to
1315
# grab a local copy to prevent that from happening
1316
self._transport = transport
1319
self._transport.mkdir(d)
1322
self._transport.put(f, 'content of %s' % f)
1326
>>> orig = ScratchDir(files=["file1", "file2"])
1327
>>> os.listdir(orig.base)
1328
[u'.bzr', u'file1', u'file2']
1329
>>> clone = orig.clone()
1330
>>> if os.name != 'nt':
1331
... os.path.samefile(orig.base, clone.base)
1333
... orig.base == clone.base
1336
>>> os.listdir(clone.base)
1337
[u'.bzr', u'file1', u'file2']
1339
from shutil import copytree
1340
from bzrlib.osutils import mkdtemp
1343
copytree(self.base, base, symlinks=True)
1345
transport=bzrlib.transport.local.ScratchTransport(base))
1348
class Converter(object):
1349
"""Converts a disk format object from one format to another."""
1351
def convert(self, to_convert, pb):
1352
"""Perform the conversion of to_convert, giving feedback via pb.
1354
:param to_convert: The disk object to convert.
1355
:param pb: a progress bar to use for progress information.
1358
def step(self, message):
1359
"""Update the pb by a step."""
1361
self.pb.update(message, self.count, self.total)
1364
class ConvertBzrDir4To5(Converter):
1365
"""Converts format 4 bzr dirs to format 5."""
1368
super(ConvertBzrDir4To5, self).__init__()
1369
self.converted_revs = set()
1370
self.absent_revisions = set()
1374
def convert(self, to_convert, pb):
1375
"""See Converter.convert()."""
1376
self.bzrdir = to_convert
1378
self.pb.note('starting upgrade from format 4 to 5')
1379
if isinstance(self.bzrdir.transport, LocalTransport):
1380
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1381
self._convert_to_weaves()
1382
return BzrDir.open(self.bzrdir.root_transport.base)
1384
def _convert_to_weaves(self):
1385
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1388
stat = self.bzrdir.transport.stat('weaves')
1389
if not S_ISDIR(stat.st_mode):
1390
self.bzrdir.transport.delete('weaves')
1391
self.bzrdir.transport.mkdir('weaves')
1392
except errors.NoSuchFile:
1393
self.bzrdir.transport.mkdir('weaves')
1394
# deliberately not a WeaveFile as we want to build it up slowly.
1395
self.inv_weave = Weave('inventory')
1396
# holds in-memory weaves for all files
1397
self.text_weaves = {}
1398
self.bzrdir.transport.delete('branch-format')
1399
self.branch = self.bzrdir.open_branch()
1400
self._convert_working_inv()
1401
rev_history = self.branch.revision_history()
1402
# to_read is a stack holding the revisions we still need to process;
1403
# appending to it adds new highest-priority revisions
1404
self.known_revisions = set(rev_history)
1405
self.to_read = rev_history[-1:]
1407
rev_id = self.to_read.pop()
1408
if (rev_id not in self.revisions
1409
and rev_id not in self.absent_revisions):
1410
self._load_one_rev(rev_id)
1412
to_import = self._make_order()
1413
for i, rev_id in enumerate(to_import):
1414
self.pb.update('converting revision', i, len(to_import))
1415
self._convert_one_rev(rev_id)
1417
self._write_all_weaves()
1418
self._write_all_revs()
1419
self.pb.note('upgraded to weaves:')
1420
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1421
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
1422
self.pb.note(' %6d texts', self.text_count)
1423
self._cleanup_spare_files_after_format4()
1424
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
1426
def _cleanup_spare_files_after_format4(self):
1427
# FIXME working tree upgrade foo.
1428
for n in 'merged-patches', 'pending-merged-patches':
1430
## assert os.path.getsize(p) == 0
1431
self.bzrdir.transport.delete(n)
1432
except errors.NoSuchFile:
1434
self.bzrdir.transport.delete_tree('inventory-store')
1435
self.bzrdir.transport.delete_tree('text-store')
1437
def _convert_working_inv(self):
1438
inv = serializer_v4.read_inventory(self.branch.control_files.get('inventory'))
1439
new_inv_xml = serializer_v5.write_inventory_to_string(inv)
1440
# FIXME inventory is a working tree change.
1441
self.branch.control_files.put('inventory', new_inv_xml)
1443
def _write_all_weaves(self):
1444
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
1445
weave_transport = self.bzrdir.transport.clone('weaves')
1446
weaves = WeaveStore(weave_transport, prefixed=False)
1447
transaction = WriteTransaction()
1451
for file_id, file_weave in self.text_weaves.items():
1452
self.pb.update('writing weave', i, len(self.text_weaves))
1453
weaves._put_weave(file_id, file_weave, transaction)
1455
self.pb.update('inventory', 0, 1)
1456
controlweaves._put_weave('inventory', self.inv_weave, transaction)
1457
self.pb.update('inventory', 1, 1)
1461
def _write_all_revs(self):
1462
"""Write all revisions out in new form."""
1463
self.bzrdir.transport.delete_tree('revision-store')
1464
self.bzrdir.transport.mkdir('revision-store')
1465
revision_transport = self.bzrdir.transport.clone('revision-store')
1467
_revision_store = TextRevisionStore(TextStore(revision_transport,
1471
transaction = bzrlib.transactions.WriteTransaction()
1472
for i, rev_id in enumerate(self.converted_revs):
1473
self.pb.update('write revision', i, len(self.converted_revs))
1474
_revision_store.add_revision(self.revisions[rev_id], transaction)
1478
def _load_one_rev(self, rev_id):
1479
"""Load a revision object into memory.
1481
Any parents not either loaded or abandoned get queued to be
1483
self.pb.update('loading revision',
1484
len(self.revisions),
1485
len(self.known_revisions))
1486
if not self.branch.repository.has_revision(rev_id):
1488
self.pb.note('revision {%s} not present in branch; '
1489
'will be converted as a ghost',
1491
self.absent_revisions.add(rev_id)
1493
rev = self.branch.repository._revision_store.get_revision(rev_id,
1494
self.branch.repository.get_transaction())
1495
for parent_id in rev.parent_ids:
1496
self.known_revisions.add(parent_id)
1497
self.to_read.append(parent_id)
1498
self.revisions[rev_id] = rev
1500
def _load_old_inventory(self, rev_id):
1501
assert rev_id not in self.converted_revs
1502
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
1503
inv = serializer_v4.read_inventory_from_string(old_inv_xml)
1504
rev = self.revisions[rev_id]
1505
if rev.inventory_sha1:
1506
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
1507
'inventory sha mismatch for {%s}' % rev_id
1510
def _load_updated_inventory(self, rev_id):
1511
assert rev_id in self.converted_revs
1512
inv_xml = self.inv_weave.get_text(rev_id)
1513
inv = serializer_v5.read_inventory_from_string(inv_xml)
1516
def _convert_one_rev(self, rev_id):
1517
"""Convert revision and all referenced objects to new format."""
1518
rev = self.revisions[rev_id]
1519
inv = self._load_old_inventory(rev_id)
1520
present_parents = [p for p in rev.parent_ids
1521
if p not in self.absent_revisions]
1522
self._convert_revision_contents(rev, inv, present_parents)
1523
self._store_new_weave(rev, inv, present_parents)
1524
self.converted_revs.add(rev_id)
1526
def _store_new_weave(self, rev, inv, present_parents):
1527
# the XML is now updated with text versions
1531
if ie.kind == 'root_directory':
1533
assert hasattr(ie, 'revision'), \
1534
'no revision on {%s} in {%s}' % \
1535
(file_id, rev.revision_id)
1536
new_inv_xml = serializer_v5.write_inventory_to_string(inv)
1537
new_inv_sha1 = sha_string(new_inv_xml)
1538
self.inv_weave.add_lines(rev.revision_id,
1540
new_inv_xml.splitlines(True))
1541
rev.inventory_sha1 = new_inv_sha1
1543
def _convert_revision_contents(self, rev, inv, present_parents):
1544
"""Convert all the files within a revision.
1546
Also upgrade the inventory to refer to the text revision ids."""
1547
rev_id = rev.revision_id
1548
mutter('converting texts of revision {%s}',
1550
parent_invs = map(self._load_updated_inventory, present_parents)
1553
self._convert_file_version(rev, ie, parent_invs)
1555
def _convert_file_version(self, rev, ie, parent_invs):
1556
"""Convert one version of one file.
1558
The file needs to be added into the weave if it is a merge
1559
of >=2 parents or if it's changed from its parent.
1561
if ie.kind == 'root_directory':
1563
file_id = ie.file_id
1564
rev_id = rev.revision_id
1565
w = self.text_weaves.get(file_id)
1568
self.text_weaves[file_id] = w
1569
text_changed = False
1570
previous_entries = ie.find_previous_heads(parent_invs,
1574
for old_revision in previous_entries:
1575
# if this fails, its a ghost ?
1576
assert old_revision in self.converted_revs
1577
self.snapshot_ie(previous_entries, ie, w, rev_id)
1579
assert getattr(ie, 'revision', None) is not None
1581
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
1582
# TODO: convert this logic, which is ~= snapshot to
1583
# a call to:. This needs the path figured out. rather than a work_tree
1584
# a v4 revision_tree can be given, or something that looks enough like
1585
# one to give the file content to the entry if it needs it.
1586
# and we need something that looks like a weave store for snapshot to
1588
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
1589
if len(previous_revisions) == 1:
1590
previous_ie = previous_revisions.values()[0]
1591
if ie._unchanged(previous_ie):
1592
ie.revision = previous_ie.revision
1595
text = self.branch.repository.text_store.get(ie.text_id)
1596
file_lines = text.readlines()
1597
assert sha_strings(file_lines) == ie.text_sha1
1598
assert sum(map(len, file_lines)) == ie.text_size
1599
w.add_lines(rev_id, previous_revisions, file_lines)
1600
self.text_count += 1
1602
w.add_lines(rev_id, previous_revisions, [])
1603
ie.revision = rev_id
1605
def _make_order(self):
1606
"""Return a suitable order for importing revisions.
1608
The order must be such that an revision is imported after all
1609
its (present) parents.
1611
todo = set(self.revisions.keys())
1612
done = self.absent_revisions.copy()
1615
# scan through looking for a revision whose parents
1617
for rev_id in sorted(list(todo)):
1618
rev = self.revisions[rev_id]
1619
parent_ids = set(rev.parent_ids)
1620
if parent_ids.issubset(done):
1621
# can take this one now
1622
order.append(rev_id)
1628
class ConvertBzrDir5To6(Converter):
1629
"""Converts format 5 bzr dirs to format 6."""
1631
def convert(self, to_convert, pb):
1632
"""See Converter.convert()."""
1633
self.bzrdir = to_convert
1635
self.pb.note('starting upgrade from format 5 to 6')
1636
self._convert_to_prefixed()
1637
return BzrDir.open(self.bzrdir.root_transport.base)
1639
def _convert_to_prefixed(self):
1640
from bzrlib.store import TransportStore
1641
self.bzrdir.transport.delete('branch-format')
1642
for store_name in ["weaves", "revision-store"]:
1643
self.pb.note("adding prefixes to %s" % store_name)
1644
store_transport = self.bzrdir.transport.clone(store_name)
1645
store = TransportStore(store_transport, prefixed=True)
1646
for urlfilename in store_transport.list_dir('.'):
1647
filename = urlunescape(urlfilename)
1648
if (filename.endswith(".weave") or
1649
filename.endswith(".gz") or
1650
filename.endswith(".sig")):
1651
file_id = os.path.splitext(filename)[0]
1654
prefix_dir = store.hash_prefix(file_id)
1655
# FIXME keep track of the dirs made RBC 20060121
1657
store_transport.move(filename, prefix_dir + '/' + filename)
1658
except errors.NoSuchFile: # catches missing dirs strangely enough
1659
store_transport.mkdir(prefix_dir)
1660
store_transport.move(filename, prefix_dir + '/' + filename)
1661
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
1664
class ConvertBzrDir6ToMeta(Converter):
1665
"""Converts format 6 bzr dirs to metadirs."""
1667
def convert(self, to_convert, pb):
1668
"""See Converter.convert()."""
1669
self.bzrdir = to_convert
1672
self.total = 20 # the steps we know about
1673
self.garbage_inventories = []
1675
self.pb.note('starting upgrade from format 6 to metadir')
1676
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
1677
# its faster to move specific files around than to open and use the apis...
1678
# first off, nuke ancestry.weave, it was never used.
1680
self.step('Removing ancestry.weave')
1681
self.bzrdir.transport.delete('ancestry.weave')
1682
except errors.NoSuchFile:
1684
# find out whats there
1685
self.step('Finding branch files')
1686
last_revision = self.bzrdir.open_branch().last_revision()
1687
bzrcontents = self.bzrdir.transport.list_dir('.')
1688
for name in bzrcontents:
1689
if name.startswith('basis-inventory.'):
1690
self.garbage_inventories.append(name)
1691
# create new directories for repository, working tree and branch
1692
self.dir_mode = self.bzrdir._control_files._dir_mode
1693
self.file_mode = self.bzrdir._control_files._file_mode
1694
repository_names = [('inventory.weave', True),
1695
('revision-store', True),
1697
self.step('Upgrading repository ')
1698
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
1699
self.make_lock('repository')
1700
# we hard code the formats here because we are converting into
1701
# the meta format. The meta format upgrader can take this to a
1702
# future format within each component.
1703
self.put_format('repository', bzrlib.repository.RepositoryFormat7())
1704
for entry in repository_names:
1705
self.move_entry('repository', entry)
1707
self.step('Upgrading branch ')
1708
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
1709
self.make_lock('branch')
1710
self.put_format('branch', bzrlib.branch.BzrBranchFormat5())
1711
branch_files = [('revision-history', True),
1712
('branch-name', True),
1714
for entry in branch_files:
1715
self.move_entry('branch', entry)
1717
self.step('Upgrading working tree')
1718
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
1719
self.make_lock('checkout')
1720
self.put_format('checkout', bzrlib.workingtree.WorkingTreeFormat3())
1721
self.bzrdir.transport.delete_multi(self.garbage_inventories, self.pb)
1722
checkout_files = [('pending-merges', True),
1723
('inventory', True),
1724
('stat-cache', False)]
1725
for entry in checkout_files:
1726
self.move_entry('checkout', entry)
1727
if last_revision is not None:
1728
self.bzrdir._control_files.put_utf8('checkout/last-revision',
1730
self.bzrdir._control_files.put_utf8('branch-format', BzrDirMetaFormat1().get_format_string())
1731
return BzrDir.open(self.bzrdir.root_transport.base)
1733
def make_lock(self, name):
1734
"""Make a lock for the new control dir name."""
1735
self.step('Make %s lock' % name)
1736
ld = LockDir(self.bzrdir.transport,
1738
file_modebits=self.file_mode,
1739
dir_modebits=self.dir_mode)
1742
def move_entry(self, new_dir, entry):
1743
"""Move then entry name into new_dir."""
1745
mandatory = entry[1]
1746
self.step('Moving %s' % name)
1748
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
1749
except errors.NoSuchFile:
1753
def put_format(self, dirname, format):
1754
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
1757
class ConvertMetaToMeta(Converter):
1758
"""Converts the components of metadirs."""
1760
def __init__(self, target_format):
1761
"""Create a metadir to metadir converter.
1763
:param target_format: The final metadir format that is desired.
1765
self.target_format = target_format
1767
def convert(self, to_convert, pb):
1768
"""See Converter.convert()."""
1769
self.bzrdir = to_convert
1773
self.step('checking repository format')
1775
repo = self.bzrdir.open_repository()
1776
except errors.NoRepositoryPresent:
1779
if not isinstance(repo._format, self.target_format.repository_format.__class__):
1780
from bzrlib.repository import CopyConverter
1781
self.pb.note('starting repository conversion')
1782
converter = CopyConverter(self.target_format.repository_format)
1783
converter.convert(repo, pb)
added
removed
bzrlib/bzrdir.py
