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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 (
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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
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from bzrlib.transport.local import LocalTransport
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import bzrlib.urlutils as urlutils
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from bzrlib.weave import Weave
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from bzrlib.xml4 import serializer_v4
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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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result_repo = local_repo.clone(
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revision_id=revision_id,
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result_repo.set_make_working_trees(local_repo.make_working_trees())
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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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result_repo = local_repo.clone(
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revision_id=revision_id,
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result_repo.set_make_working_trees(local_repo.make_working_trees())
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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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# TODO: This should be given a Transport, and should chdir up; otherwise
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# this will open a new connection.
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def _make_tail(self, url):
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head, tail = urlutils.split(url)
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if tail and tail != '.':
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t = bzrlib.transport.get_transport(head)
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except errors.FileExists:
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# TODO: Should take a Transport
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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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head, tail = urlutils.split(base)
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if tail and tail != '.':
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t = bzrlib.transport.get_transport(head)
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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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# find the next containing bzrdir
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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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# does it have a repository ?
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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 == next_transport.base):
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# top of the file system
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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 versa.
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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 versa.
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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 versa.
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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 is_control_filename(self, filename):
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"""True if filename is the name of a path which is reserved for bzrdir's.
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:param filename: A filename within the root transport of this bzrdir.
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This is true IF and ONLY IF the filename is part of the namespace reserved
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for bzr control dirs. Currently this is the '.bzr' directory in the root
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of the root_transport. it is expected that plugins will need to extend
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this in the future - for instance to make bzr talk with svn working
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# this might be better on the BzrDirFormat class because it refers to
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# all the possible bzrdir disk formats.
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# This method is tested via the workingtree is_control_filename tests-
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# it was extracted from WorkingTree.is_control_filename. If the methods
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# contract is extended beyond the current trivial implementation please
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# add new tests for it to the appropriate place.
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return filename == '.bzr' or filename.startswith('.bzr/')
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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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:return: The BzrDir that contains the path, and a Unicode path
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for the rest of the 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), urlutils.unescape(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 source, and want to make a new target repo
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# we don't clone the repo because that preserves attributes
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# like is_shared(), and we have not yet implemented a
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# repository sprout().
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result_repo = result.create_repository()
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if result_repo is not None:
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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 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):
739
"""See BzrDir.sprout()."""
740
from bzrlib.workingtree import WorkingTreeFormat2
742
result = self._format._initialize_for_clone(url)
743
basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
745
self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
746
except errors.NoRepositoryPresent:
749
self.open_branch().sprout(result, revision_id=revision_id)
750
except errors.NotBranchError:
752
# we always want a working tree
753
WorkingTreeFormat2().initialize(result)
757
class BzrDir4(BzrDirPreSplitOut):
758
"""A .bzr version 4 control object.
760
This is a deprecated format and may be removed after sept 2006.
763
def create_repository(self, shared=False):
764
"""See BzrDir.create_repository."""
765
return self._format.repository_format.initialize(self, shared)
767
def needs_format_conversion(self, format=None):
768
"""Format 4 dirs are always in need of conversion."""
771
def open_repository(self):
772
"""See BzrDir.open_repository."""
773
from bzrlib.repository import RepositoryFormat4
774
return RepositoryFormat4().open(self, _found=True)
777
class BzrDir5(BzrDirPreSplitOut):
778
"""A .bzr version 5 control object.
780
This is a deprecated format and may be removed after sept 2006.
783
def open_repository(self):
784
"""See BzrDir.open_repository."""
785
from bzrlib.repository import RepositoryFormat5
786
return RepositoryFormat5().open(self, _found=True)
788
def open_workingtree(self, _unsupported=False):
789
"""See BzrDir.create_workingtree."""
790
from bzrlib.workingtree import WorkingTreeFormat2
791
return WorkingTreeFormat2().open(self, _found=True)
794
class BzrDir6(BzrDirPreSplitOut):
795
"""A .bzr version 6 control object.
797
This is a deprecated format and may be removed after sept 2006.
800
def open_repository(self):
801
"""See BzrDir.open_repository."""
802
from bzrlib.repository import RepositoryFormat6
803
return RepositoryFormat6().open(self, _found=True)
805
def open_workingtree(self, _unsupported=False):
806
"""See BzrDir.create_workingtree."""
807
from bzrlib.workingtree import WorkingTreeFormat2
808
return WorkingTreeFormat2().open(self, _found=True)
811
class BzrDirMeta1(BzrDir):
812
"""A .bzr meta version 1 control object.
814
This is the first control object where the
815
individual aspects are really split out: there are separate repository,
816
workingtree and branch subdirectories and any subset of the three can be
817
present within a BzrDir.
820
def can_convert_format(self):
821
"""See BzrDir.can_convert_format()."""
824
def create_branch(self):
825
"""See BzrDir.create_branch."""
826
from bzrlib.branch import BranchFormat
827
return BranchFormat.get_default_format().initialize(self)
829
def create_repository(self, shared=False):
830
"""See BzrDir.create_repository."""
831
return self._format.repository_format.initialize(self, shared)
833
def create_workingtree(self, revision_id=None):
834
"""See BzrDir.create_workingtree."""
835
from bzrlib.workingtree import WorkingTreeFormat
836
return WorkingTreeFormat.get_default_format().initialize(self, revision_id)
838
def _get_mkdir_mode(self):
839
"""Figure out the mode to use when creating a bzrdir subdir."""
840
temp_control = LockableFiles(self.transport, '', TransportLock)
841
return temp_control._dir_mode
843
def get_branch_transport(self, branch_format):
844
"""See BzrDir.get_branch_transport()."""
845
if branch_format is None:
846
return self.transport.clone('branch')
848
branch_format.get_format_string()
849
except NotImplementedError:
850
raise errors.IncompatibleFormat(branch_format, self._format)
852
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
853
except errors.FileExists:
855
return self.transport.clone('branch')
857
def get_repository_transport(self, repository_format):
858
"""See BzrDir.get_repository_transport()."""
859
if repository_format is None:
860
return self.transport.clone('repository')
862
repository_format.get_format_string()
863
except NotImplementedError:
864
raise errors.IncompatibleFormat(repository_format, self._format)
866
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
867
except errors.FileExists:
869
return self.transport.clone('repository')
871
def get_workingtree_transport(self, workingtree_format):
872
"""See BzrDir.get_workingtree_transport()."""
873
if workingtree_format is None:
874
return self.transport.clone('checkout')
876
workingtree_format.get_format_string()
877
except NotImplementedError:
878
raise errors.IncompatibleFormat(workingtree_format, self._format)
880
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
881
except errors.FileExists:
883
return self.transport.clone('checkout')
885
def needs_format_conversion(self, format=None):
886
"""See BzrDir.needs_format_conversion()."""
888
format = BzrDirFormat.get_default_format()
889
if not isinstance(self._format, format.__class__):
890
# it is not a meta dir format, conversion is needed.
892
# we might want to push this down to the repository?
894
if not isinstance(self.open_repository()._format,
895
format.repository_format.__class__):
896
# the repository needs an upgrade.
898
except errors.NoRepositoryPresent:
900
# currently there are no other possible conversions for meta1 formats.
903
def open_branch(self, unsupported=False):
904
"""See BzrDir.open_branch."""
905
from bzrlib.branch import BranchFormat
906
format = BranchFormat.find_format(self)
907
self._check_supported(format, unsupported)
908
return format.open(self, _found=True)
910
def open_repository(self, unsupported=False):
911
"""See BzrDir.open_repository."""
912
from bzrlib.repository import RepositoryFormat
913
format = RepositoryFormat.find_format(self)
914
self._check_supported(format, unsupported)
915
return format.open(self, _found=True)
917
def open_workingtree(self, unsupported=False):
918
"""See BzrDir.open_workingtree."""
919
from bzrlib.workingtree import WorkingTreeFormat
920
format = WorkingTreeFormat.find_format(self)
921
self._check_supported(format, unsupported)
922
return format.open(self, _found=True)
925
class BzrDirFormat(object):
926
"""An encapsulation of the initialization and open routines for a format.
928
Formats provide three things:
929
* An initialization routine,
933
Formats are placed in an dict by their format string for reference
934
during bzrdir opening. These should be subclasses of BzrDirFormat
937
Once a format is deprecated, just deprecate the initialize and open
938
methods on the format class. Do not deprecate the object, as the
939
object will be created every system load.
942
_default_format = None
943
"""The default format used for new .bzr dirs."""
946
"""The known formats."""
948
_lock_file_name = 'branch-lock'
950
# _lock_class must be set in subclasses to the lock type, typ.
951
# TransportLock or LockDir
954
def find_format(klass, transport):
955
"""Return the format registered for URL."""
957
format_string = transport.get(".bzr/branch-format").read()
958
return klass._formats[format_string]
959
except errors.NoSuchFile:
960
raise errors.NotBranchError(path=transport.base)
962
raise errors.UnknownFormatError(format_string)
965
def get_default_format(klass):
966
"""Return the current default format."""
967
return klass._default_format
969
def get_format_string(self):
970
"""Return the ASCII format string that identifies this format."""
971
raise NotImplementedError(self.get_format_string)
973
def get_format_description(self):
974
"""Return the short description for this format."""
975
raise NotImplementedError(self.get_format_description)
977
def get_converter(self, format=None):
978
"""Return the converter to use to convert bzrdirs needing converts.
980
This returns a bzrlib.bzrdir.Converter object.
982
This should return the best upgrader to step this format towards the
983
current default format. In the case of plugins we can/should provide
984
some means for them to extend the range of returnable converters.
986
:param format: Optional format to override the default format of the
989
raise NotImplementedError(self.get_converter)
991
def initialize(self, url):
992
"""Create a bzr control dir at this url and return an opened copy.
994
Subclasses should typically override initialize_on_transport
995
instead of this method.
997
return self.initialize_on_transport(get_transport(url))
999
def initialize_on_transport(self, transport):
1000
"""Initialize a new bzrdir in the base directory of a Transport."""
1001
# Since we don't have a .bzr directory, inherit the
1002
# mode from the root directory
1003
temp_control = LockableFiles(transport, '', TransportLock)
1004
temp_control._transport.mkdir('.bzr',
1005
# FIXME: RBC 20060121 don't peek under
1007
mode=temp_control._dir_mode)
1008
file_mode = temp_control._file_mode
1010
mutter('created control directory in ' + transport.base)
1011
control = transport.clone('.bzr')
1012
utf8_files = [('README',
1013
"This is a Bazaar-NG control directory.\n"
1014
"Do not change any files in this directory.\n"),
1015
('branch-format', self.get_format_string()),
1017
# NB: no need to escape relative paths that are url safe.
1018
control_files = LockableFiles(control, self._lock_file_name,
1020
control_files.create_lock()
1021
control_files.lock_write()
1023
for file, content in utf8_files:
1024
control_files.put_utf8(file, content)
1026
control_files.unlock()
1027
return self.open(transport, _found=True)
1029
def is_supported(self):
1030
"""Is this format supported?
1032
Supported formats must be initializable and openable.
1033
Unsupported formats may not support initialization or committing or
1034
some other features depending on the reason for not being supported.
1038
def open(self, transport, _found=False):
1039
"""Return an instance of this format for the dir transport points at.
1041
_found is a private parameter, do not use it.
1044
assert isinstance(BzrDirFormat.find_format(transport),
1046
return self._open(transport)
1048
def _open(self, transport):
1049
"""Template method helper for opening BzrDirectories.
1051
This performs the actual open and any additional logic or parameter
1054
raise NotImplementedError(self._open)
1057
def register_format(klass, format):
1058
klass._formats[format.get_format_string()] = format
1061
def set_default_format(klass, format):
1062
klass._default_format = format
1065
return self.get_format_string()[:-1]
1068
def unregister_format(klass, format):
1069
assert klass._formats[format.get_format_string()] is format
1070
del klass._formats[format.get_format_string()]
1073
class BzrDirFormat4(BzrDirFormat):
1074
"""Bzr dir format 4.
1076
This format is a combined format for working tree, branch and repository.
1078
- Format 1 working trees [always]
1079
- Format 4 branches [always]
1080
- Format 4 repositories [always]
1082
This format is deprecated: it indexes texts using a text it which is
1083
removed in format 5; write support for this format has been removed.
1086
_lock_class = TransportLock
1088
def get_format_string(self):
1089
"""See BzrDirFormat.get_format_string()."""
1090
return "Bazaar-NG branch, format 0.0.4\n"
1092
def get_format_description(self):
1093
"""See BzrDirFormat.get_format_description()."""
1094
return "All-in-one format 4"
1096
def get_converter(self, format=None):
1097
"""See BzrDirFormat.get_converter()."""
1098
# there is one and only one upgrade path here.
1099
return ConvertBzrDir4To5()
1101
def initialize_on_transport(self, transport):
1102
"""Format 4 branches cannot be created."""
1103
raise errors.UninitializableFormat(self)
1105
def is_supported(self):
1106
"""Format 4 is not supported.
1108
It is not supported because the model changed from 4 to 5 and the
1109
conversion logic is expensive - so doing it on the fly was not
1114
def _open(self, transport):
1115
"""See BzrDirFormat._open."""
1116
return BzrDir4(transport, self)
1118
def __return_repository_format(self):
1119
"""Circular import protection."""
1120
from bzrlib.repository import RepositoryFormat4
1121
return RepositoryFormat4(self)
1122
repository_format = property(__return_repository_format)
1125
class BzrDirFormat5(BzrDirFormat):
1126
"""Bzr control format 5.
1128
This format is a combined format for working tree, branch and repository.
1130
- Format 2 working trees [always]
1131
- Format 4 branches [always]
1132
- Format 5 repositories [always]
1133
Unhashed stores in the repository.
1136
_lock_class = TransportLock
1138
def get_format_string(self):
1139
"""See BzrDirFormat.get_format_string()."""
1140
return "Bazaar-NG branch, format 5\n"
1142
def get_format_description(self):
1143
"""See BzrDirFormat.get_format_description()."""
1144
return "All-in-one format 5"
1146
def get_converter(self, format=None):
1147
"""See BzrDirFormat.get_converter()."""
1148
# there is one and only one upgrade path here.
1149
return ConvertBzrDir5To6()
1151
def _initialize_for_clone(self, url):
1152
return self.initialize_on_transport(get_transport(url), _cloning=True)
1154
def initialize_on_transport(self, transport, _cloning=False):
1155
"""Format 5 dirs always have working tree, branch and repository.
1157
Except when they are being cloned.
1159
from bzrlib.branch import BzrBranchFormat4
1160
from bzrlib.repository import RepositoryFormat5
1161
from bzrlib.workingtree import WorkingTreeFormat2
1162
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1163
RepositoryFormat5().initialize(result, _internal=True)
1165
BzrBranchFormat4().initialize(result)
1166
WorkingTreeFormat2().initialize(result)
1169
def _open(self, transport):
1170
"""See BzrDirFormat._open."""
1171
return BzrDir5(transport, self)
1173
def __return_repository_format(self):
1174
"""Circular import protection."""
1175
from bzrlib.repository import RepositoryFormat5
1176
return RepositoryFormat5(self)
1177
repository_format = property(__return_repository_format)
1180
class BzrDirFormat6(BzrDirFormat):
1181
"""Bzr control format 6.
1183
This format is a combined format for working tree, branch and repository.
1185
- Format 2 working trees [always]
1186
- Format 4 branches [always]
1187
- Format 6 repositories [always]
1190
_lock_class = TransportLock
1192
def get_format_string(self):
1193
"""See BzrDirFormat.get_format_string()."""
1194
return "Bazaar-NG branch, format 6\n"
1196
def get_format_description(self):
1197
"""See BzrDirFormat.get_format_description()."""
1198
return "All-in-one format 6"
1200
def get_converter(self, format=None):
1201
"""See BzrDirFormat.get_converter()."""
1202
# there is one and only one upgrade path here.
1203
return ConvertBzrDir6ToMeta()
1205
def _initialize_for_clone(self, url):
1206
return self.initialize_on_transport(get_transport(url), _cloning=True)
1208
def initialize_on_transport(self, transport, _cloning=False):
1209
"""Format 6 dirs always have working tree, branch and repository.
1211
Except when they are being cloned.
1213
from bzrlib.branch import BzrBranchFormat4
1214
from bzrlib.repository import RepositoryFormat6
1215
from bzrlib.workingtree import WorkingTreeFormat2
1216
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1217
RepositoryFormat6().initialize(result, _internal=True)
1219
BzrBranchFormat4().initialize(result)
1221
WorkingTreeFormat2().initialize(result)
1222
except errors.NotLocalUrl:
1223
# emulate pre-check behaviour for working tree and silently
1228
def _open(self, transport):
1229
"""See BzrDirFormat._open."""
1230
return BzrDir6(transport, self)
1232
def __return_repository_format(self):
1233
"""Circular import protection."""
1234
from bzrlib.repository import RepositoryFormat6
1235
return RepositoryFormat6(self)
1236
repository_format = property(__return_repository_format)
1239
class BzrDirMetaFormat1(BzrDirFormat):
1240
"""Bzr meta control format 1
1242
This is the first format with split out working tree, branch and repository
1245
- Format 3 working trees [optional]
1246
- Format 5 branches [optional]
1247
- Format 7 repositories [optional]
1250
_lock_class = LockDir
1252
def get_converter(self, format=None):
1253
"""See BzrDirFormat.get_converter()."""
1255
format = BzrDirFormat.get_default_format()
1256
if not isinstance(self, format.__class__):
1257
# converting away from metadir is not implemented
1258
raise NotImplementedError(self.get_converter)
1259
return ConvertMetaToMeta(format)
1261
def get_format_string(self):
1262
"""See BzrDirFormat.get_format_string()."""
1263
return "Bazaar-NG meta directory, format 1\n"
1265
def get_format_description(self):
1266
"""See BzrDirFormat.get_format_description()."""
1267
return "Meta directory format 1"
1269
def _open(self, transport):
1270
"""See BzrDirFormat._open."""
1271
return BzrDirMeta1(transport, self)
1273
def __return_repository_format(self):
1274
"""Circular import protection."""
1275
if getattr(self, '_repository_format', None):
1276
return self._repository_format
1277
from bzrlib.repository import RepositoryFormat
1278
return RepositoryFormat.get_default_format()
1280
def __set_repository_format(self, value):
1281
"""Allow changint the repository format for metadir formats."""
1282
self._repository_format = value
1284
repository_format = property(__return_repository_format, __set_repository_format)
1287
BzrDirFormat.register_format(BzrDirFormat4())
1288
BzrDirFormat.register_format(BzrDirFormat5())
1289
BzrDirFormat.register_format(BzrDirFormat6())
1290
__default_format = BzrDirMetaFormat1()
1291
BzrDirFormat.register_format(__default_format)
1292
BzrDirFormat.set_default_format(__default_format)
1295
class BzrDirTestProviderAdapter(object):
1296
"""A tool to generate a suite testing multiple bzrdir formats at once.
1298
This is done by copying the test once for each transport and injecting
1299
the transport_server, transport_readonly_server, and bzrdir_format
1300
classes into each copy. Each copy is also given a new id() to make it
1304
def __init__(self, transport_server, transport_readonly_server, formats):
1305
self._transport_server = transport_server
1306
self._transport_readonly_server = transport_readonly_server
1307
self._formats = formats
1309
def adapt(self, test):
1310
result = TestSuite()
1311
for format in self._formats:
1312
new_test = deepcopy(test)
1313
new_test.transport_server = self._transport_server
1314
new_test.transport_readonly_server = self._transport_readonly_server
1315
new_test.bzrdir_format = format
1316
def make_new_test_id():
1317
new_id = "%s(%s)" % (new_test.id(), format.__class__.__name__)
1318
return lambda: new_id
1319
new_test.id = make_new_test_id()
1320
result.addTest(new_test)
1324
class ScratchDir(BzrDir6):
1325
"""Special test class: a bzrdir that cleans up itself..
1327
>>> d = ScratchDir()
1328
>>> base = d.transport.base
1331
>>> b.transport.__del__()
1336
def __init__(self, files=[], dirs=[], transport=None):
1337
"""Make a test branch.
1339
This creates a temporary directory and runs init-tree in it.
1341
If any files are listed, they are created in the working copy.
1343
if transport is None:
1344
transport = bzrlib.transport.local.ScratchTransport()
1345
# local import for scope restriction
1346
BzrDirFormat6().initialize(transport.base)
1347
super(ScratchDir, self).__init__(transport, BzrDirFormat6())
1348
self.create_repository()
1349
self.create_branch()
1350
self.create_workingtree()
1352
super(ScratchDir, self).__init__(transport, BzrDirFormat6())
1354
# BzrBranch creates a clone to .bzr and then forgets about the
1355
# original transport. A ScratchTransport() deletes itself and
1356
# everything underneath it when it goes away, so we need to
1357
# grab a local copy to prevent that from happening
1358
self._transport = transport
1361
self._transport.mkdir(d)
1364
self._transport.put(f, 'content of %s' % f)
1368
>>> orig = ScratchDir(files=["file1", "file2"])
1369
>>> os.listdir(orig.base)
1370
[u'.bzr', u'file1', u'file2']
1371
>>> clone = orig.clone()
1372
>>> if os.name != 'nt':
1373
... os.path.samefile(orig.base, clone.base)
1375
... orig.base == clone.base
1378
>>> os.listdir(clone.base)
1379
[u'.bzr', u'file1', u'file2']
1381
from shutil import copytree
1382
from bzrlib.osutils import mkdtemp
1385
copytree(self.base, base, symlinks=True)
1387
transport=bzrlib.transport.local.ScratchTransport(base))
1390
class Converter(object):
1391
"""Converts a disk format object from one format to another."""
1393
def convert(self, to_convert, pb):
1394
"""Perform the conversion of to_convert, giving feedback via pb.
1396
:param to_convert: The disk object to convert.
1397
:param pb: a progress bar to use for progress information.
1400
def step(self, message):
1401
"""Update the pb by a step."""
1403
self.pb.update(message, self.count, self.total)
1406
class ConvertBzrDir4To5(Converter):
1407
"""Converts format 4 bzr dirs to format 5."""
1410
super(ConvertBzrDir4To5, self).__init__()
1411
self.converted_revs = set()
1412
self.absent_revisions = set()
1416
def convert(self, to_convert, pb):
1417
"""See Converter.convert()."""
1418
self.bzrdir = to_convert
1420
self.pb.note('starting upgrade from format 4 to 5')
1421
if isinstance(self.bzrdir.transport, LocalTransport):
1422
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1423
self._convert_to_weaves()
1424
return BzrDir.open(self.bzrdir.root_transport.base)
1426
def _convert_to_weaves(self):
1427
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1430
stat = self.bzrdir.transport.stat('weaves')
1431
if not S_ISDIR(stat.st_mode):
1432
self.bzrdir.transport.delete('weaves')
1433
self.bzrdir.transport.mkdir('weaves')
1434
except errors.NoSuchFile:
1435
self.bzrdir.transport.mkdir('weaves')
1436
# deliberately not a WeaveFile as we want to build it up slowly.
1437
self.inv_weave = Weave('inventory')
1438
# holds in-memory weaves for all files
1439
self.text_weaves = {}
1440
self.bzrdir.transport.delete('branch-format')
1441
self.branch = self.bzrdir.open_branch()
1442
self._convert_working_inv()
1443
rev_history = self.branch.revision_history()
1444
# to_read is a stack holding the revisions we still need to process;
1445
# appending to it adds new highest-priority revisions
1446
self.known_revisions = set(rev_history)
1447
self.to_read = rev_history[-1:]
1449
rev_id = self.to_read.pop()
1450
if (rev_id not in self.revisions
1451
and rev_id not in self.absent_revisions):
1452
self._load_one_rev(rev_id)
1454
to_import = self._make_order()
1455
for i, rev_id in enumerate(to_import):
1456
self.pb.update('converting revision', i, len(to_import))
1457
self._convert_one_rev(rev_id)
1459
self._write_all_weaves()
1460
self._write_all_revs()
1461
self.pb.note('upgraded to weaves:')
1462
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1463
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
1464
self.pb.note(' %6d texts', self.text_count)
1465
self._cleanup_spare_files_after_format4()
1466
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
1468
def _cleanup_spare_files_after_format4(self):
1469
# FIXME working tree upgrade foo.
1470
for n in 'merged-patches', 'pending-merged-patches':
1472
## assert os.path.getsize(p) == 0
1473
self.bzrdir.transport.delete(n)
1474
except errors.NoSuchFile:
1476
self.bzrdir.transport.delete_tree('inventory-store')
1477
self.bzrdir.transport.delete_tree('text-store')
1479
def _convert_working_inv(self):
1480
inv = serializer_v4.read_inventory(self.branch.control_files.get('inventory'))
1481
new_inv_xml = bzrlib.xml5.serializer_v5.write_inventory_to_string(inv)
1482
# FIXME inventory is a working tree change.
1483
self.branch.control_files.put('inventory', new_inv_xml)
1485
def _write_all_weaves(self):
1486
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
1487
weave_transport = self.bzrdir.transport.clone('weaves')
1488
weaves = WeaveStore(weave_transport, prefixed=False)
1489
transaction = WriteTransaction()
1493
for file_id, file_weave in self.text_weaves.items():
1494
self.pb.update('writing weave', i, len(self.text_weaves))
1495
weaves._put_weave(file_id, file_weave, transaction)
1497
self.pb.update('inventory', 0, 1)
1498
controlweaves._put_weave('inventory', self.inv_weave, transaction)
1499
self.pb.update('inventory', 1, 1)
1503
def _write_all_revs(self):
1504
"""Write all revisions out in new form."""
1505
self.bzrdir.transport.delete_tree('revision-store')
1506
self.bzrdir.transport.mkdir('revision-store')
1507
revision_transport = self.bzrdir.transport.clone('revision-store')
1509
_revision_store = TextRevisionStore(TextStore(revision_transport,
1513
transaction = bzrlib.transactions.WriteTransaction()
1514
for i, rev_id in enumerate(self.converted_revs):
1515
self.pb.update('write revision', i, len(self.converted_revs))
1516
_revision_store.add_revision(self.revisions[rev_id], transaction)
1520
def _load_one_rev(self, rev_id):
1521
"""Load a revision object into memory.
1523
Any parents not either loaded or abandoned get queued to be
1525
self.pb.update('loading revision',
1526
len(self.revisions),
1527
len(self.known_revisions))
1528
if not self.branch.repository.has_revision(rev_id):
1530
self.pb.note('revision {%s} not present in branch; '
1531
'will be converted as a ghost',
1533
self.absent_revisions.add(rev_id)
1535
rev = self.branch.repository._revision_store.get_revision(rev_id,
1536
self.branch.repository.get_transaction())
1537
for parent_id in rev.parent_ids:
1538
self.known_revisions.add(parent_id)
1539
self.to_read.append(parent_id)
1540
self.revisions[rev_id] = rev
1542
def _load_old_inventory(self, rev_id):
1543
assert rev_id not in self.converted_revs
1544
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
1545
inv = serializer_v4.read_inventory_from_string(old_inv_xml)
1546
rev = self.revisions[rev_id]
1547
if rev.inventory_sha1:
1548
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
1549
'inventory sha mismatch for {%s}' % rev_id
1552
def _load_updated_inventory(self, rev_id):
1553
assert rev_id in self.converted_revs
1554
inv_xml = self.inv_weave.get_text(rev_id)
1555
inv = bzrlib.xml5.serializer_v5.read_inventory_from_string(inv_xml)
1558
def _convert_one_rev(self, rev_id):
1559
"""Convert revision and all referenced objects to new format."""
1560
rev = self.revisions[rev_id]
1561
inv = self._load_old_inventory(rev_id)
1562
present_parents = [p for p in rev.parent_ids
1563
if p not in self.absent_revisions]
1564
self._convert_revision_contents(rev, inv, present_parents)
1565
self._store_new_weave(rev, inv, present_parents)
1566
self.converted_revs.add(rev_id)
1568
def _store_new_weave(self, rev, inv, present_parents):
1569
# the XML is now updated with text versions
1573
if ie.kind == 'root_directory':
1575
assert hasattr(ie, 'revision'), \
1576
'no revision on {%s} in {%s}' % \
1577
(file_id, rev.revision_id)
1578
new_inv_xml = bzrlib.xml5.serializer_v5.write_inventory_to_string(inv)
1579
new_inv_sha1 = sha_string(new_inv_xml)
1580
self.inv_weave.add_lines(rev.revision_id,
1582
new_inv_xml.splitlines(True))
1583
rev.inventory_sha1 = new_inv_sha1
1585
def _convert_revision_contents(self, rev, inv, present_parents):
1586
"""Convert all the files within a revision.
1588
Also upgrade the inventory to refer to the text revision ids."""
1589
rev_id = rev.revision_id
1590
mutter('converting texts of revision {%s}',
1592
parent_invs = map(self._load_updated_inventory, present_parents)
1595
self._convert_file_version(rev, ie, parent_invs)
1597
def _convert_file_version(self, rev, ie, parent_invs):
1598
"""Convert one version of one file.
1600
The file needs to be added into the weave if it is a merge
1601
of >=2 parents or if it's changed from its parent.
1603
if ie.kind == 'root_directory':
1605
file_id = ie.file_id
1606
rev_id = rev.revision_id
1607
w = self.text_weaves.get(file_id)
1610
self.text_weaves[file_id] = w
1611
text_changed = False
1612
previous_entries = ie.find_previous_heads(parent_invs,
1616
for old_revision in previous_entries:
1617
# if this fails, its a ghost ?
1618
assert old_revision in self.converted_revs
1619
self.snapshot_ie(previous_entries, ie, w, rev_id)
1621
assert getattr(ie, 'revision', None) is not None
1623
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
1624
# TODO: convert this logic, which is ~= snapshot to
1625
# a call to:. This needs the path figured out. rather than a work_tree
1626
# a v4 revision_tree can be given, or something that looks enough like
1627
# one to give the file content to the entry if it needs it.
1628
# and we need something that looks like a weave store for snapshot to
1630
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
1631
if len(previous_revisions) == 1:
1632
previous_ie = previous_revisions.values()[0]
1633
if ie._unchanged(previous_ie):
1634
ie.revision = previous_ie.revision
1637
text = self.branch.repository.text_store.get(ie.text_id)
1638
file_lines = text.readlines()
1639
assert sha_strings(file_lines) == ie.text_sha1
1640
assert sum(map(len, file_lines)) == ie.text_size
1641
w.add_lines(rev_id, previous_revisions, file_lines)
1642
self.text_count += 1
1644
w.add_lines(rev_id, previous_revisions, [])
1645
ie.revision = rev_id
1647
def _make_order(self):
1648
"""Return a suitable order for importing revisions.
1650
The order must be such that an revision is imported after all
1651
its (present) parents.
1653
todo = set(self.revisions.keys())
1654
done = self.absent_revisions.copy()
1657
# scan through looking for a revision whose parents
1659
for rev_id in sorted(list(todo)):
1660
rev = self.revisions[rev_id]
1661
parent_ids = set(rev.parent_ids)
1662
if parent_ids.issubset(done):
1663
# can take this one now
1664
order.append(rev_id)
1670
class ConvertBzrDir5To6(Converter):
1671
"""Converts format 5 bzr dirs to format 6."""
1673
def convert(self, to_convert, pb):
1674
"""See Converter.convert()."""
1675
self.bzrdir = to_convert
1677
self.pb.note('starting upgrade from format 5 to 6')
1678
self._convert_to_prefixed()
1679
return BzrDir.open(self.bzrdir.root_transport.base)
1681
def _convert_to_prefixed(self):
1682
from bzrlib.store import TransportStore
1683
self.bzrdir.transport.delete('branch-format')
1684
for store_name in ["weaves", "revision-store"]:
1685
self.pb.note("adding prefixes to %s" % store_name)
1686
store_transport = self.bzrdir.transport.clone(store_name)
1687
store = TransportStore(store_transport, prefixed=True)
1688
for urlfilename in store_transport.list_dir('.'):
1689
filename = urlutils.unescape(urlfilename)
1690
if (filename.endswith(".weave") or
1691
filename.endswith(".gz") or
1692
filename.endswith(".sig")):
1693
file_id = os.path.splitext(filename)[0]
1696
prefix_dir = store.hash_prefix(file_id)
1697
# FIXME keep track of the dirs made RBC 20060121
1699
store_transport.move(filename, prefix_dir + '/' + filename)
1700
except errors.NoSuchFile: # catches missing dirs strangely enough
1701
store_transport.mkdir(prefix_dir)
1702
store_transport.move(filename, prefix_dir + '/' + filename)
1703
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
1706
class ConvertBzrDir6ToMeta(Converter):
1707
"""Converts format 6 bzr dirs to metadirs."""
1709
def convert(self, to_convert, pb):
1710
"""See Converter.convert()."""
1711
self.bzrdir = to_convert
1714
self.total = 20 # the steps we know about
1715
self.garbage_inventories = []
1717
self.pb.note('starting upgrade from format 6 to metadir')
1718
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
1719
# its faster to move specific files around than to open and use the apis...
1720
# first off, nuke ancestry.weave, it was never used.
1722
self.step('Removing ancestry.weave')
1723
self.bzrdir.transport.delete('ancestry.weave')
1724
except errors.NoSuchFile:
1726
# find out whats there
1727
self.step('Finding branch files')
1728
last_revision = self.bzrdir.open_branch().last_revision()
1729
bzrcontents = self.bzrdir.transport.list_dir('.')
1730
for name in bzrcontents:
1731
if name.startswith('basis-inventory.'):
1732
self.garbage_inventories.append(name)
1733
# create new directories for repository, working tree and branch
1734
self.dir_mode = self.bzrdir._control_files._dir_mode
1735
self.file_mode = self.bzrdir._control_files._file_mode
1736
repository_names = [('inventory.weave', True),
1737
('revision-store', True),
1739
self.step('Upgrading repository ')
1740
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
1741
self.make_lock('repository')
1742
# we hard code the formats here because we are converting into
1743
# the meta format. The meta format upgrader can take this to a
1744
# future format within each component.
1745
self.put_format('repository', bzrlib.repository.RepositoryFormat7())
1746
for entry in repository_names:
1747
self.move_entry('repository', entry)
1749
self.step('Upgrading branch ')
1750
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
1751
self.make_lock('branch')
1752
self.put_format('branch', bzrlib.branch.BzrBranchFormat5())
1753
branch_files = [('revision-history', True),
1754
('branch-name', True),
1756
for entry in branch_files:
1757
self.move_entry('branch', entry)
1759
self.step('Upgrading working tree')
1760
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
1761
self.make_lock('checkout')
1762
self.put_format('checkout', bzrlib.workingtree.WorkingTreeFormat3())
1763
self.bzrdir.transport.delete_multi(self.garbage_inventories, self.pb)
1764
checkout_files = [('pending-merges', True),
1765
('inventory', True),
1766
('stat-cache', False)]
1767
for entry in checkout_files:
1768
self.move_entry('checkout', entry)
1769
if last_revision is not None:
1770
self.bzrdir._control_files.put_utf8('checkout/last-revision',
1772
self.bzrdir._control_files.put_utf8('branch-format', BzrDirMetaFormat1().get_format_string())
1773
return BzrDir.open(self.bzrdir.root_transport.base)
1775
def make_lock(self, name):
1776
"""Make a lock for the new control dir name."""
1777
self.step('Make %s lock' % name)
1778
ld = LockDir(self.bzrdir.transport,
1780
file_modebits=self.file_mode,
1781
dir_modebits=self.dir_mode)
1784
def move_entry(self, new_dir, entry):
1785
"""Move then entry name into new_dir."""
1787
mandatory = entry[1]
1788
self.step('Moving %s' % name)
1790
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
1791
except errors.NoSuchFile:
1795
def put_format(self, dirname, format):
1796
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
1799
class ConvertMetaToMeta(Converter):
1800
"""Converts the components of metadirs."""
1802
def __init__(self, target_format):
1803
"""Create a metadir to metadir converter.
1805
:param target_format: The final metadir format that is desired.
1807
self.target_format = target_format
1809
def convert(self, to_convert, pb):
1810
"""See Converter.convert()."""
1811
self.bzrdir = to_convert
1815
self.step('checking repository format')
1817
repo = self.bzrdir.open_repository()
1818
except errors.NoRepositoryPresent:
1821
if not isinstance(repo._format, self.target_format.repository_format.__class__):
1822
from bzrlib.repository import CopyConverter
1823
self.pb.note('starting repository conversion')
1824
converter = CopyConverter(self.target_format.repository_format)
1825
converter.convert(repo, pb)
added
removed
bzrlib/bzrdir.py
