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# Copyright (C) 2005, 2006, 2007 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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# TODO: remove unittest dependency; put that stuff inside the test suite
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# TODO: The Format probe_transport seems a bit redundant with just trying to
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# open the bzrdir. -- mbp
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# TODO: Can we move specific formats into separate modules to make this file
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from cStringIO import StringIO
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from copy import deepcopy
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from stat import S_ISDIR
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revision as _mod_revision,
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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.transactions import WriteTransaction
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from bzrlib.transport import (
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do_catching_redirections,
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from bzrlib.weave import Weave
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from bzrlib.trace import (
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from bzrlib.transport.local import LocalTransport
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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_conversion_target(self, target_format):
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target_repo_format = target_format.repository_format
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source_repo_format = self._format.repository_format
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source_repo_format.check_conversion_target(target_repo_format)
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def _check_supported(format, allow_unsupported,
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recommend_upgrade=True,
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"""Give an error or warning on old formats.
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:param format: may be any kind of format - workingtree, branch,
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:param allow_unsupported: If true, allow opening
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formats that are strongly deprecated, and which may
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have limited functionality.
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:param recommend_upgrade: If true (default), warn
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the user through the ui object that they may wish
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to upgrade the object.
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# TODO: perhaps move this into a base Format class; it's not BzrDir
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# specific. mbp 20070323
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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(format=format)
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if recommend_upgrade \
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and getattr(format, 'upgrade_recommended', False):
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ui.ui_factory.recommend_upgrade(
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format.get_format_description(),
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def clone(self, url, revision_id=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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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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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)
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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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 = 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, format=None):
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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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:param format: If supplied, the format of branch to create. If not
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supplied, the default is used.
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if cls is not BzrDir:
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raise AssertionError("BzrDir.create always creates the default"
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" format, 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 = get_transport(head)
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except errors.FileExists:
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format = BzrDirFormat.get_default_format()
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return 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, format=None):
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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, format)
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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, format)
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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, format=None):
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"""Create a new BzrDir and Repository at the url 'base'.
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If no format is supplied, this will default to the current default
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BzrDirFormat by default, and use whatever repository format that that
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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, format)
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return bzrdir.create_repository(shared)
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def create_standalone_workingtree(base, format=None):
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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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:return: The WorkingTree object.
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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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format=format).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 retire_bzrdir(self):
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"""Permanently disable the bzrdir.
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This is done by renaming it to give the user some ability to recover
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if there was a problem.
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This will have horrible consequences if anyone has anything locked or
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for i in xrange(10000):
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to_path = '.bzr.retired.%d' % i
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self.root_transport.rename('.bzr', to_path)
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note("renamed %s to %s"
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% (self.root_transport.abspath('.bzr'), to_path))
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except (errors.TransportError, IOError, errors.PathError):
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def destroy_workingtree(self):
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"""Destroy the working tree at this BzrDir.
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Formats that do not support this may raise UnsupportedOperation.
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raise NotImplementedError(self.destroy_workingtree)
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def destroy_workingtree_metadata(self):
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"""Destroy the control files for the working tree at this BzrDir.
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The contents of working tree files are not affected.
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Formats that do not support this may raise UnsupportedOperation.
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raise NotImplementedError(self.destroy_workingtree_metadata)
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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 a
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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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return BzrDir.open_from_transport(t, _unsupported=_unsupported)
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def open_from_transport(transport, _unsupported=False):
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"""Open a bzrdir within a particular directory.
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:param transport: Transport containing the bzrdir.
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:param _unsupported: private.
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base = transport.base
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def find_format(transport):
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return transport, BzrDirFormat.find_format(transport)
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def redirected(transport, e, redirection_notice):
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qualified_source = e.get_source_url()
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relpath = transport.relpath(qualified_source)
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if not e.target.endswith(relpath):
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# Not redirected to a branch-format, not a branch
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raise errors.NotBranchError(path=e.target)
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target = e.target[:-len(relpath)]
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note('%s is%s redirected to %s',
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transport.base, e.permanently, target)
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# Let's try with a new transport
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qualified_target = e.get_target_url()[:-len(relpath)]
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# FIXME: If 'transport' has a qualifier, this should
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# be applied again to the new transport *iff* the
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# schemes used are the same. It's a bit tricky to
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# verify, so I'll punt for now
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return get_transport(target)
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transport, format = do_catching_redirections(find_format,
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except errors.TooManyRedirections:
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raise errors.NotBranchError(base)
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BzrDir._check_supported(format, _unsupported)
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return format.open(transport, _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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result = BzrDir.open_from_transport(a_transport)
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return result, urlutils.unescape(a_transport.relpath(url))
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except errors.NotBranchError, 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_containing_tree_or_branch(klass, location):
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"""Return the branch and working tree contained by a location.
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Returns (tree, branch, relpath).
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If there is no tree at containing the location, tree will be None.
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If there is no branch containing the location, an exception will be
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relpath is the portion of the path that is contained by the branch.
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bzrdir, relpath = klass.open_containing(location)
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tree = bzrdir.open_workingtree()
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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branch = bzrdir.open_branch()
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return tree, branch, relpath
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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(recommend_upgrade=False)
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except errors.NoWorkingTree:
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def _cloning_metadir(self):
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result_format = self._format.__class__()
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branch = self.open_branch()
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source_repository = branch.repository
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except errors.NotBranchError:
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source_repository = self.open_repository()
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result_format.repository_format = source_repository._format
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except errors.NoRepositoryPresent:
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source_repository = None
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# TODO: Couldn't we just probe for the format in these cases,
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# rather than opening the whole tree? It would be a little
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# faster. mbp 20070401
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tree = self.open_workingtree(recommend_upgrade=False)
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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result_format.workingtree_format = None
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result_format.workingtree_format = tree._format.__class__()
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return result_format, source_repository
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def cloning_metadir(self):
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"""Produce a metadir suitable for cloning or sprouting with.
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These operations may produce workingtrees (yes, even though they're
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"cloning" something that doesn't have a tree, so a viable workingtree
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format must be selected.
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format, repository = self._cloning_metadir()
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if format._workingtree_format is None:
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if repository is None:
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tree_format = repository._format._matchingbzrdir.workingtree_format
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format.workingtree_format = tree_format.__class__()
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def checkout_metadir(self):
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return self.cloning_metadir()
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def sprout(self, url, revision_id=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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cloning_format = self.cloning_metadir()
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result = cloning_format.initialize(url)
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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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source_repository = None
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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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if source_repository is not None:
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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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wt = result.create_workingtree()
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if wt.path2id('') is None:
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wt.set_root_id(self.open_workingtree.get_root_id())
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except errors.NoWorkingTree:
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if recurse == 'down':
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basis = wt.basis_tree()
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subtrees = basis.iter_references()
789
recurse_branch = wt.branch
790
elif source_branch is not None:
791
basis = source_branch.basis_tree()
793
subtrees = basis.iter_references()
794
recurse_branch = source_branch
799
for path, file_id in subtrees:
800
target = urlutils.join(url, urlutils.escape(path))
801
sublocation = source_branch.reference_parent(file_id, path)
802
sublocation.bzrdir.sprout(target,
803
basis.get_reference_revision(file_id, path),
804
force_new_repo=force_new_repo, recurse=recurse)
806
if basis is not None:
811
class BzrDirPreSplitOut(BzrDir):
812
"""A common class for the all-in-one formats."""
814
def __init__(self, _transport, _format):
815
"""See BzrDir.__init__."""
816
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
817
assert self._format._lock_class == lockable_files.TransportLock
818
assert self._format._lock_file_name == 'branch-lock'
819
self._control_files = lockable_files.LockableFiles(
820
self.get_branch_transport(None),
821
self._format._lock_file_name,
822
self._format._lock_class)
824
def break_lock(self):
825
"""Pre-splitout bzrdirs do not suffer from stale locks."""
826
raise NotImplementedError(self.break_lock)
828
def clone(self, url, revision_id=None, force_new_repo=False):
829
"""See BzrDir.clone()."""
830
from bzrlib.workingtree import WorkingTreeFormat2
832
result = self._format._initialize_for_clone(url)
833
self.open_repository().clone(result, revision_id=revision_id)
834
from_branch = self.open_branch()
835
from_branch.clone(result, revision_id=revision_id)
837
self.open_workingtree().clone(result)
838
except errors.NotLocalUrl:
839
# make a new one, this format always has to have one.
841
WorkingTreeFormat2().initialize(result)
842
except errors.NotLocalUrl:
843
# but we cannot do it for remote trees.
844
to_branch = result.open_branch()
845
WorkingTreeFormat2().stub_initialize_remote(to_branch.control_files)
848
def create_branch(self):
849
"""See BzrDir.create_branch."""
850
return self.open_branch()
852
def create_repository(self, shared=False):
853
"""See BzrDir.create_repository."""
855
raise errors.IncompatibleFormat('shared repository', self._format)
856
return self.open_repository()
858
def create_workingtree(self, revision_id=None):
859
"""See BzrDir.create_workingtree."""
860
# this looks buggy but is not -really-
861
# because this format creates the workingtree when the bzrdir is
863
# clone and sprout will have set the revision_id
864
# and that will have set it for us, its only
865
# specific uses of create_workingtree in isolation
866
# that can do wonky stuff here, and that only
867
# happens for creating checkouts, which cannot be
868
# done on this format anyway. So - acceptable wart.
869
result = self.open_workingtree(recommend_upgrade=False)
870
if revision_id is not None:
871
if revision_id == _mod_revision.NULL_REVISION:
872
result.set_parent_ids([])
874
result.set_parent_ids([revision_id])
877
def destroy_workingtree(self):
878
"""See BzrDir.destroy_workingtree."""
879
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
881
def destroy_workingtree_metadata(self):
882
"""See BzrDir.destroy_workingtree_metadata."""
883
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
886
def get_branch_transport(self, branch_format):
887
"""See BzrDir.get_branch_transport()."""
888
if branch_format is None:
889
return self.transport
891
branch_format.get_format_string()
892
except NotImplementedError:
893
return self.transport
894
raise errors.IncompatibleFormat(branch_format, self._format)
896
def get_repository_transport(self, repository_format):
897
"""See BzrDir.get_repository_transport()."""
898
if repository_format is None:
899
return self.transport
901
repository_format.get_format_string()
902
except NotImplementedError:
903
return self.transport
904
raise errors.IncompatibleFormat(repository_format, self._format)
906
def get_workingtree_transport(self, workingtree_format):
907
"""See BzrDir.get_workingtree_transport()."""
908
if workingtree_format is None:
909
return self.transport
911
workingtree_format.get_format_string()
912
except NotImplementedError:
913
return self.transport
914
raise errors.IncompatibleFormat(workingtree_format, self._format)
916
def needs_format_conversion(self, format=None):
917
"""See BzrDir.needs_format_conversion()."""
918
# if the format is not the same as the system default,
919
# an upgrade is needed.
921
format = BzrDirFormat.get_default_format()
922
return not isinstance(self._format, format.__class__)
924
def open_branch(self, unsupported=False):
925
"""See BzrDir.open_branch."""
926
from bzrlib.branch import BzrBranchFormat4
927
format = BzrBranchFormat4()
928
self._check_supported(format, unsupported)
929
return format.open(self, _found=True)
931
def sprout(self, url, revision_id=None, force_new_repo=False):
932
"""See BzrDir.sprout()."""
933
from bzrlib.workingtree import WorkingTreeFormat2
935
result = self._format._initialize_for_clone(url)
937
self.open_repository().clone(result, revision_id=revision_id)
938
except errors.NoRepositoryPresent:
941
self.open_branch().sprout(result, revision_id=revision_id)
942
except errors.NotBranchError:
944
# we always want a working tree
945
WorkingTreeFormat2().initialize(result)
949
class BzrDir4(BzrDirPreSplitOut):
950
"""A .bzr version 4 control object.
952
This is a deprecated format and may be removed after sept 2006.
955
def create_repository(self, shared=False):
956
"""See BzrDir.create_repository."""
957
return self._format.repository_format.initialize(self, shared)
959
def needs_format_conversion(self, format=None):
960
"""Format 4 dirs are always in need of conversion."""
963
def open_repository(self):
964
"""See BzrDir.open_repository."""
965
from bzrlib.repofmt.weaverepo import RepositoryFormat4
966
return RepositoryFormat4().open(self, _found=True)
969
class BzrDir5(BzrDirPreSplitOut):
970
"""A .bzr version 5 control object.
972
This is a deprecated format and may be removed after sept 2006.
975
def open_repository(self):
976
"""See BzrDir.open_repository."""
977
from bzrlib.repofmt.weaverepo import RepositoryFormat5
978
return RepositoryFormat5().open(self, _found=True)
980
def open_workingtree(self, _unsupported=False,
981
recommend_upgrade=True):
982
"""See BzrDir.create_workingtree."""
983
from bzrlib.workingtree import WorkingTreeFormat2
984
wt_format = WorkingTreeFormat2()
985
# we don't warn here about upgrades; that ought to be handled for the
987
return wt_format.open(self, _found=True)
990
class BzrDir6(BzrDirPreSplitOut):
991
"""A .bzr version 6 control object.
993
This is a deprecated format and may be removed after sept 2006.
996
def open_repository(self):
997
"""See BzrDir.open_repository."""
998
from bzrlib.repofmt.weaverepo import RepositoryFormat6
999
return RepositoryFormat6().open(self, _found=True)
1001
def open_workingtree(self, _unsupported=False,
1002
recommend_upgrade=True):
1003
"""See BzrDir.create_workingtree."""
1004
# we don't warn here about upgrades; that ought to be handled for the
1006
from bzrlib.workingtree import WorkingTreeFormat2
1007
return WorkingTreeFormat2().open(self, _found=True)
1010
class BzrDirMeta1(BzrDir):
1011
"""A .bzr meta version 1 control object.
1013
This is the first control object where the
1014
individual aspects are really split out: there are separate repository,
1015
workingtree and branch subdirectories and any subset of the three can be
1016
present within a BzrDir.
1019
def can_convert_format(self):
1020
"""See BzrDir.can_convert_format()."""
1023
def create_branch(self):
1024
"""See BzrDir.create_branch."""
1025
return self._format.get_branch_format().initialize(self)
1027
def create_repository(self, shared=False):
1028
"""See BzrDir.create_repository."""
1029
return self._format.repository_format.initialize(self, shared)
1031
def create_workingtree(self, revision_id=None):
1032
"""See BzrDir.create_workingtree."""
1033
from bzrlib.workingtree import WorkingTreeFormat
1034
return self._format.workingtree_format.initialize(self, revision_id)
1036
def destroy_workingtree(self):
1037
"""See BzrDir.destroy_workingtree."""
1038
wt = self.open_workingtree(recommend_upgrade=False)
1039
repository = wt.branch.repository
1040
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1041
wt.revert([], old_tree=empty)
1042
self.destroy_workingtree_metadata()
1044
def destroy_workingtree_metadata(self):
1045
self.transport.delete_tree('checkout')
1047
def _get_mkdir_mode(self):
1048
"""Figure out the mode to use when creating a bzrdir subdir."""
1049
temp_control = lockable_files.LockableFiles(self.transport, '',
1050
lockable_files.TransportLock)
1051
return temp_control._dir_mode
1053
def get_branch_transport(self, branch_format):
1054
"""See BzrDir.get_branch_transport()."""
1055
if branch_format is None:
1056
return self.transport.clone('branch')
1058
branch_format.get_format_string()
1059
except NotImplementedError:
1060
raise errors.IncompatibleFormat(branch_format, self._format)
1062
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1063
except errors.FileExists:
1065
return self.transport.clone('branch')
1067
def get_repository_transport(self, repository_format):
1068
"""See BzrDir.get_repository_transport()."""
1069
if repository_format is None:
1070
return self.transport.clone('repository')
1072
repository_format.get_format_string()
1073
except NotImplementedError:
1074
raise errors.IncompatibleFormat(repository_format, self._format)
1076
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1077
except errors.FileExists:
1079
return self.transport.clone('repository')
1081
def get_workingtree_transport(self, workingtree_format):
1082
"""See BzrDir.get_workingtree_transport()."""
1083
if workingtree_format is None:
1084
return self.transport.clone('checkout')
1086
workingtree_format.get_format_string()
1087
except NotImplementedError:
1088
raise errors.IncompatibleFormat(workingtree_format, self._format)
1090
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1091
except errors.FileExists:
1093
return self.transport.clone('checkout')
1095
def needs_format_conversion(self, format=None):
1096
"""See BzrDir.needs_format_conversion()."""
1098
format = BzrDirFormat.get_default_format()
1099
if not isinstance(self._format, format.__class__):
1100
# it is not a meta dir format, conversion is needed.
1102
# we might want to push this down to the repository?
1104
if not isinstance(self.open_repository()._format,
1105
format.repository_format.__class__):
1106
# the repository needs an upgrade.
1108
except errors.NoRepositoryPresent:
1111
if not isinstance(self.open_branch()._format,
1112
format.get_branch_format().__class__):
1113
# the branch needs an upgrade.
1115
except errors.NotBranchError:
1118
my_wt = self.open_workingtree(recommend_upgrade=False)
1119
if not isinstance(my_wt._format,
1120
format.workingtree_format.__class__):
1121
# the workingtree needs an upgrade.
1123
except (errors.NoWorkingTree, errors.NotLocalUrl):
1127
def open_branch(self, unsupported=False):
1128
"""See BzrDir.open_branch."""
1129
from bzrlib.branch import BranchFormat
1130
format = BranchFormat.find_format(self)
1131
self._check_supported(format, unsupported)
1132
return format.open(self, _found=True)
1134
def open_repository(self, unsupported=False):
1135
"""See BzrDir.open_repository."""
1136
from bzrlib.repository import RepositoryFormat
1137
format = RepositoryFormat.find_format(self)
1138
self._check_supported(format, unsupported)
1139
return format.open(self, _found=True)
1141
def open_workingtree(self, unsupported=False,
1142
recommend_upgrade=True):
1143
"""See BzrDir.open_workingtree."""
1144
from bzrlib.workingtree import WorkingTreeFormat
1145
format = WorkingTreeFormat.find_format(self)
1146
self._check_supported(format, unsupported,
1148
basedir=self.root_transport.base)
1149
return format.open(self, _found=True)
1152
class BzrDirFormat(object):
1153
"""An encapsulation of the initialization and open routines for a format.
1155
Formats provide three things:
1156
* An initialization routine,
1160
Formats are placed in an dict by their format string for reference
1161
during bzrdir opening. These should be subclasses of BzrDirFormat
1164
Once a format is deprecated, just deprecate the initialize and open
1165
methods on the format class. Do not deprecate the object, as the
1166
object will be created every system load.
1169
_default_format = None
1170
"""The default format used for new .bzr dirs."""
1173
"""The known formats."""
1175
_control_formats = []
1176
"""The registered control formats - .bzr, ....
1178
This is a list of BzrDirFormat objects.
1181
_lock_file_name = 'branch-lock'
1183
# _lock_class must be set in subclasses to the lock type, typ.
1184
# TransportLock or LockDir
1187
def find_format(klass, transport):
1188
"""Return the format present at transport."""
1189
for format in klass._control_formats:
1191
return format.probe_transport(transport)
1192
except errors.NotBranchError:
1193
# this format does not find a control dir here.
1195
raise errors.NotBranchError(path=transport.base)
1198
def probe_transport(klass, transport):
1199
"""Return the .bzrdir style transport present at URL."""
1201
format_string = transport.get(".bzr/branch-format").read()
1202
except errors.NoSuchFile:
1203
raise errors.NotBranchError(path=transport.base)
1206
return klass._formats[format_string]
1208
raise errors.UnknownFormatError(format=format_string)
1211
def get_default_format(klass):
1212
"""Return the current default format."""
1213
return klass._default_format
1215
def get_format_string(self):
1216
"""Return the ASCII format string that identifies this format."""
1217
raise NotImplementedError(self.get_format_string)
1219
def get_format_description(self):
1220
"""Return the short description for this format."""
1221
raise NotImplementedError(self.get_format_description)
1223
def get_converter(self, format=None):
1224
"""Return the converter to use to convert bzrdirs needing converts.
1226
This returns a bzrlib.bzrdir.Converter object.
1228
This should return the best upgrader to step this format towards the
1229
current default format. In the case of plugins we can/should provide
1230
some means for them to extend the range of returnable converters.
1232
:param format: Optional format to override the default format of the
1235
raise NotImplementedError(self.get_converter)
1237
def initialize(self, url):
1238
"""Create a bzr control dir at this url and return an opened copy.
1240
Subclasses should typically override initialize_on_transport
1241
instead of this method.
1243
return self.initialize_on_transport(get_transport(url))
1245
def initialize_on_transport(self, transport):
1246
"""Initialize a new bzrdir in the base directory of a Transport."""
1247
# Since we don't have a .bzr directory, inherit the
1248
# mode from the root directory
1249
temp_control = lockable_files.LockableFiles(transport,
1250
'', lockable_files.TransportLock)
1251
temp_control._transport.mkdir('.bzr',
1252
# FIXME: RBC 20060121 don't peek under
1254
mode=temp_control._dir_mode)
1255
file_mode = temp_control._file_mode
1257
mutter('created control directory in ' + transport.base)
1258
control = transport.clone('.bzr')
1259
utf8_files = [('README',
1260
"This is a Bazaar-NG control directory.\n"
1261
"Do not change any files in this directory.\n"),
1262
('branch-format', self.get_format_string()),
1264
# NB: no need to escape relative paths that are url safe.
1265
control_files = lockable_files.LockableFiles(control,
1266
self._lock_file_name, self._lock_class)
1267
control_files.create_lock()
1268
control_files.lock_write()
1270
for file, content in utf8_files:
1271
control_files.put_utf8(file, content)
1273
control_files.unlock()
1274
return self.open(transport, _found=True)
1276
def is_supported(self):
1277
"""Is this format supported?
1279
Supported formats must be initializable and openable.
1280
Unsupported formats may not support initialization or committing or
1281
some other features depending on the reason for not being supported.
1285
def same_model(self, target_format):
1286
return (self.repository_format.rich_root_data ==
1287
target_format.rich_root_data)
1290
def known_formats(klass):
1291
"""Return all the known formats.
1293
Concrete formats should override _known_formats.
1295
# There is double indirection here to make sure that control
1296
# formats used by more than one dir format will only be probed
1297
# once. This can otherwise be quite expensive for remote connections.
1299
for format in klass._control_formats:
1300
result.update(format._known_formats())
1304
def _known_formats(klass):
1305
"""Return the known format instances for this control format."""
1306
return set(klass._formats.values())
1308
def open(self, transport, _found=False):
1309
"""Return an instance of this format for the dir transport points at.
1311
_found is a private parameter, do not use it.
1314
found_format = BzrDirFormat.find_format(transport)
1315
if not isinstance(found_format, self.__class__):
1316
raise AssertionError("%s was asked to open %s, but it seems to need "
1318
% (self, transport, found_format))
1319
return self._open(transport)
1321
def _open(self, transport):
1322
"""Template method helper for opening BzrDirectories.
1324
This performs the actual open and any additional logic or parameter
1327
raise NotImplementedError(self._open)
1330
def register_format(klass, format):
1331
klass._formats[format.get_format_string()] = format
1334
def register_control_format(klass, format):
1335
"""Register a format that does not use '.bzr' for its control dir.
1337
TODO: This should be pulled up into a 'ControlDirFormat' base class
1338
which BzrDirFormat can inherit from, and renamed to register_format
1339
there. It has been done without that for now for simplicity of
1342
klass._control_formats.append(format)
1345
@symbol_versioning.deprecated_method(symbol_versioning.zero_fourteen)
1346
def set_default_format(klass, format):
1347
klass._set_default_format(format)
1350
def _set_default_format(klass, format):
1351
"""Set default format (for testing behavior of defaults only)"""
1352
klass._default_format = format
1355
return self.get_format_string()[:-1]
1358
def unregister_format(klass, format):
1359
assert klass._formats[format.get_format_string()] is format
1360
del klass._formats[format.get_format_string()]
1363
def unregister_control_format(klass, format):
1364
klass._control_formats.remove(format)
1367
class BzrDirFormat4(BzrDirFormat):
1368
"""Bzr dir format 4.
1370
This format is a combined format for working tree, branch and repository.
1372
- Format 1 working trees [always]
1373
- Format 4 branches [always]
1374
- Format 4 repositories [always]
1376
This format is deprecated: it indexes texts using a text it which is
1377
removed in format 5; write support for this format has been removed.
1380
_lock_class = lockable_files.TransportLock
1382
def get_format_string(self):
1383
"""See BzrDirFormat.get_format_string()."""
1384
return "Bazaar-NG branch, format 0.0.4\n"
1386
def get_format_description(self):
1387
"""See BzrDirFormat.get_format_description()."""
1388
return "All-in-one format 4"
1390
def get_converter(self, format=None):
1391
"""See BzrDirFormat.get_converter()."""
1392
# there is one and only one upgrade path here.
1393
return ConvertBzrDir4To5()
1395
def initialize_on_transport(self, transport):
1396
"""Format 4 branches cannot be created."""
1397
raise errors.UninitializableFormat(self)
1399
def is_supported(self):
1400
"""Format 4 is not supported.
1402
It is not supported because the model changed from 4 to 5 and the
1403
conversion logic is expensive - so doing it on the fly was not
1408
def _open(self, transport):
1409
"""See BzrDirFormat._open."""
1410
return BzrDir4(transport, self)
1412
def __return_repository_format(self):
1413
"""Circular import protection."""
1414
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1415
return RepositoryFormat4()
1416
repository_format = property(__return_repository_format)
1419
class BzrDirFormat5(BzrDirFormat):
1420
"""Bzr control format 5.
1422
This format is a combined format for working tree, branch and repository.
1424
- Format 2 working trees [always]
1425
- Format 4 branches [always]
1426
- Format 5 repositories [always]
1427
Unhashed stores in the repository.
1430
_lock_class = lockable_files.TransportLock
1432
def get_format_string(self):
1433
"""See BzrDirFormat.get_format_string()."""
1434
return "Bazaar-NG branch, format 5\n"
1436
def get_format_description(self):
1437
"""See BzrDirFormat.get_format_description()."""
1438
return "All-in-one format 5"
1440
def get_converter(self, format=None):
1441
"""See BzrDirFormat.get_converter()."""
1442
# there is one and only one upgrade path here.
1443
return ConvertBzrDir5To6()
1445
def _initialize_for_clone(self, url):
1446
return self.initialize_on_transport(get_transport(url), _cloning=True)
1448
def initialize_on_transport(self, transport, _cloning=False):
1449
"""Format 5 dirs always have working tree, branch and repository.
1451
Except when they are being cloned.
1453
from bzrlib.branch import BzrBranchFormat4
1454
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1455
from bzrlib.workingtree import WorkingTreeFormat2
1456
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1457
RepositoryFormat5().initialize(result, _internal=True)
1459
branch = BzrBranchFormat4().initialize(result)
1461
WorkingTreeFormat2().initialize(result)
1462
except errors.NotLocalUrl:
1463
# Even though we can't access the working tree, we need to
1464
# create its control files.
1465
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1468
def _open(self, transport):
1469
"""See BzrDirFormat._open."""
1470
return BzrDir5(transport, self)
1472
def __return_repository_format(self):
1473
"""Circular import protection."""
1474
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1475
return RepositoryFormat5()
1476
repository_format = property(__return_repository_format)
1479
class BzrDirFormat6(BzrDirFormat):
1480
"""Bzr control format 6.
1482
This format is a combined format for working tree, branch and repository.
1484
- Format 2 working trees [always]
1485
- Format 4 branches [always]
1486
- Format 6 repositories [always]
1489
_lock_class = lockable_files.TransportLock
1491
def get_format_string(self):
1492
"""See BzrDirFormat.get_format_string()."""
1493
return "Bazaar-NG branch, format 6\n"
1495
def get_format_description(self):
1496
"""See BzrDirFormat.get_format_description()."""
1497
return "All-in-one format 6"
1499
def get_converter(self, format=None):
1500
"""See BzrDirFormat.get_converter()."""
1501
# there is one and only one upgrade path here.
1502
return ConvertBzrDir6ToMeta()
1504
def _initialize_for_clone(self, url):
1505
return self.initialize_on_transport(get_transport(url), _cloning=True)
1507
def initialize_on_transport(self, transport, _cloning=False):
1508
"""Format 6 dirs always have working tree, branch and repository.
1510
Except when they are being cloned.
1512
from bzrlib.branch import BzrBranchFormat4
1513
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1514
from bzrlib.workingtree import WorkingTreeFormat2
1515
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1516
RepositoryFormat6().initialize(result, _internal=True)
1518
branch = BzrBranchFormat4().initialize(result)
1520
WorkingTreeFormat2().initialize(result)
1521
except errors.NotLocalUrl:
1522
# Even though we can't access the working tree, we need to
1523
# create its control files.
1524
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1527
def _open(self, transport):
1528
"""See BzrDirFormat._open."""
1529
return BzrDir6(transport, self)
1531
def __return_repository_format(self):
1532
"""Circular import protection."""
1533
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1534
return RepositoryFormat6()
1535
repository_format = property(__return_repository_format)
1538
class BzrDirMetaFormat1(BzrDirFormat):
1539
"""Bzr meta control format 1
1541
This is the first format with split out working tree, branch and repository
1544
- Format 3 working trees [optional]
1545
- Format 5 branches [optional]
1546
- Format 7 repositories [optional]
1549
_lock_class = lockdir.LockDir
1552
self._workingtree_format = None
1553
self._branch_format = None
1555
def __eq__(self, other):
1556
if other.__class__ is not self.__class__:
1558
if other.repository_format != self.repository_format:
1560
if other.workingtree_format != self.workingtree_format:
1564
def __ne__(self, other):
1565
return not self == other
1567
def get_branch_format(self):
1568
if self._branch_format is None:
1569
from bzrlib.branch import BranchFormat
1570
self._branch_format = BranchFormat.get_default_format()
1571
return self._branch_format
1573
def set_branch_format(self, format):
1574
self._branch_format = format
1576
def get_converter(self, format=None):
1577
"""See BzrDirFormat.get_converter()."""
1579
format = BzrDirFormat.get_default_format()
1580
if not isinstance(self, format.__class__):
1581
# converting away from metadir is not implemented
1582
raise NotImplementedError(self.get_converter)
1583
return ConvertMetaToMeta(format)
1585
def get_format_string(self):
1586
"""See BzrDirFormat.get_format_string()."""
1587
return "Bazaar-NG meta directory, format 1\n"
1589
def get_format_description(self):
1590
"""See BzrDirFormat.get_format_description()."""
1591
return "Meta directory format 1"
1593
def _open(self, transport):
1594
"""See BzrDirFormat._open."""
1595
return BzrDirMeta1(transport, self)
1597
def __return_repository_format(self):
1598
"""Circular import protection."""
1599
if getattr(self, '_repository_format', None):
1600
return self._repository_format
1601
from bzrlib.repository import RepositoryFormat
1602
return RepositoryFormat.get_default_format()
1604
def __set_repository_format(self, value):
1605
"""Allow changint the repository format for metadir formats."""
1606
self._repository_format = value
1608
repository_format = property(__return_repository_format, __set_repository_format)
1610
def __get_workingtree_format(self):
1611
if self._workingtree_format is None:
1612
from bzrlib.workingtree import WorkingTreeFormat
1613
self._workingtree_format = WorkingTreeFormat.get_default_format()
1614
return self._workingtree_format
1616
def __set_workingtree_format(self, wt_format):
1617
self._workingtree_format = wt_format
1619
workingtree_format = property(__get_workingtree_format,
1620
__set_workingtree_format)
1623
# Register bzr control format
1624
BzrDirFormat.register_control_format(BzrDirFormat)
1626
# Register bzr formats
1627
BzrDirFormat.register_format(BzrDirFormat4())
1628
BzrDirFormat.register_format(BzrDirFormat5())
1629
BzrDirFormat.register_format(BzrDirFormat6())
1630
__default_format = BzrDirMetaFormat1()
1631
BzrDirFormat.register_format(__default_format)
1632
BzrDirFormat._default_format = __default_format
1635
class BzrDirTestProviderAdapter(object):
1636
"""A tool to generate a suite testing multiple bzrdir formats at once.
1638
This is done by copying the test once for each transport and injecting
1639
the transport_server, transport_readonly_server, and bzrdir_format
1640
classes into each copy. Each copy is also given a new id() to make it
1644
def __init__(self, transport_server, transport_readonly_server, formats):
1645
self._transport_server = transport_server
1646
self._transport_readonly_server = transport_readonly_server
1647
self._formats = formats
1649
def adapt(self, test):
1650
result = unittest.TestSuite()
1651
for format in self._formats:
1652
new_test = deepcopy(test)
1653
new_test.transport_server = self._transport_server
1654
new_test.transport_readonly_server = self._transport_readonly_server
1655
new_test.bzrdir_format = format
1656
def make_new_test_id():
1657
new_id = "%s(%s)" % (new_test.id(), format.__class__.__name__)
1658
return lambda: new_id
1659
new_test.id = make_new_test_id()
1660
result.addTest(new_test)
1664
class Converter(object):
1665
"""Converts a disk format object from one format to another."""
1667
def convert(self, to_convert, pb):
1668
"""Perform the conversion of to_convert, giving feedback via pb.
1670
:param to_convert: The disk object to convert.
1671
:param pb: a progress bar to use for progress information.
1674
def step(self, message):
1675
"""Update the pb by a step."""
1677
self.pb.update(message, self.count, self.total)
1680
class ConvertBzrDir4To5(Converter):
1681
"""Converts format 4 bzr dirs to format 5."""
1684
super(ConvertBzrDir4To5, self).__init__()
1685
self.converted_revs = set()
1686
self.absent_revisions = set()
1690
def convert(self, to_convert, pb):
1691
"""See Converter.convert()."""
1692
self.bzrdir = to_convert
1694
self.pb.note('starting upgrade from format 4 to 5')
1695
if isinstance(self.bzrdir.transport, LocalTransport):
1696
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1697
self._convert_to_weaves()
1698
return BzrDir.open(self.bzrdir.root_transport.base)
1700
def _convert_to_weaves(self):
1701
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1704
stat = self.bzrdir.transport.stat('weaves')
1705
if not S_ISDIR(stat.st_mode):
1706
self.bzrdir.transport.delete('weaves')
1707
self.bzrdir.transport.mkdir('weaves')
1708
except errors.NoSuchFile:
1709
self.bzrdir.transport.mkdir('weaves')
1710
# deliberately not a WeaveFile as we want to build it up slowly.
1711
self.inv_weave = Weave('inventory')
1712
# holds in-memory weaves for all files
1713
self.text_weaves = {}
1714
self.bzrdir.transport.delete('branch-format')
1715
self.branch = self.bzrdir.open_branch()
1716
self._convert_working_inv()
1717
rev_history = self.branch.revision_history()
1718
# to_read is a stack holding the revisions we still need to process;
1719
# appending to it adds new highest-priority revisions
1720
self.known_revisions = set(rev_history)
1721
self.to_read = rev_history[-1:]
1723
rev_id = self.to_read.pop()
1724
if (rev_id not in self.revisions
1725
and rev_id not in self.absent_revisions):
1726
self._load_one_rev(rev_id)
1728
to_import = self._make_order()
1729
for i, rev_id in enumerate(to_import):
1730
self.pb.update('converting revision', i, len(to_import))
1731
self._convert_one_rev(rev_id)
1733
self._write_all_weaves()
1734
self._write_all_revs()
1735
self.pb.note('upgraded to weaves:')
1736
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1737
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
1738
self.pb.note(' %6d texts', self.text_count)
1739
self._cleanup_spare_files_after_format4()
1740
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
1742
def _cleanup_spare_files_after_format4(self):
1743
# FIXME working tree upgrade foo.
1744
for n in 'merged-patches', 'pending-merged-patches':
1746
## assert os.path.getsize(p) == 0
1747
self.bzrdir.transport.delete(n)
1748
except errors.NoSuchFile:
1750
self.bzrdir.transport.delete_tree('inventory-store')
1751
self.bzrdir.transport.delete_tree('text-store')
1753
def _convert_working_inv(self):
1754
inv = xml4.serializer_v4.read_inventory(
1755
self.branch.control_files.get('inventory'))
1756
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
1757
# FIXME inventory is a working tree change.
1758
self.branch.control_files.put('inventory', StringIO(new_inv_xml))
1760
def _write_all_weaves(self):
1761
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
1762
weave_transport = self.bzrdir.transport.clone('weaves')
1763
weaves = WeaveStore(weave_transport, prefixed=False)
1764
transaction = WriteTransaction()
1768
for file_id, file_weave in self.text_weaves.items():
1769
self.pb.update('writing weave', i, len(self.text_weaves))
1770
weaves._put_weave(file_id, file_weave, transaction)
1772
self.pb.update('inventory', 0, 1)
1773
controlweaves._put_weave('inventory', self.inv_weave, transaction)
1774
self.pb.update('inventory', 1, 1)
1778
def _write_all_revs(self):
1779
"""Write all revisions out in new form."""
1780
self.bzrdir.transport.delete_tree('revision-store')
1781
self.bzrdir.transport.mkdir('revision-store')
1782
revision_transport = self.bzrdir.transport.clone('revision-store')
1784
_revision_store = TextRevisionStore(TextStore(revision_transport,
1788
transaction = WriteTransaction()
1789
for i, rev_id in enumerate(self.converted_revs):
1790
self.pb.update('write revision', i, len(self.converted_revs))
1791
_revision_store.add_revision(self.revisions[rev_id], transaction)
1795
def _load_one_rev(self, rev_id):
1796
"""Load a revision object into memory.
1798
Any parents not either loaded or abandoned get queued to be
1800
self.pb.update('loading revision',
1801
len(self.revisions),
1802
len(self.known_revisions))
1803
if not self.branch.repository.has_revision(rev_id):
1805
self.pb.note('revision {%s} not present in branch; '
1806
'will be converted as a ghost',
1808
self.absent_revisions.add(rev_id)
1810
rev = self.branch.repository._revision_store.get_revision(rev_id,
1811
self.branch.repository.get_transaction())
1812
for parent_id in rev.parent_ids:
1813
self.known_revisions.add(parent_id)
1814
self.to_read.append(parent_id)
1815
self.revisions[rev_id] = rev
1817
def _load_old_inventory(self, rev_id):
1818
assert rev_id not in self.converted_revs
1819
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
1820
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
1821
inv.revision_id = rev_id
1822
rev = self.revisions[rev_id]
1823
if rev.inventory_sha1:
1824
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
1825
'inventory sha mismatch for {%s}' % rev_id
1828
def _load_updated_inventory(self, rev_id):
1829
assert rev_id in self.converted_revs
1830
inv_xml = self.inv_weave.get_text(rev_id)
1831
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml)
1834
def _convert_one_rev(self, rev_id):
1835
"""Convert revision and all referenced objects to new format."""
1836
rev = self.revisions[rev_id]
1837
inv = self._load_old_inventory(rev_id)
1838
present_parents = [p for p in rev.parent_ids
1839
if p not in self.absent_revisions]
1840
self._convert_revision_contents(rev, inv, present_parents)
1841
self._store_new_weave(rev, inv, present_parents)
1842
self.converted_revs.add(rev_id)
1844
def _store_new_weave(self, rev, inv, present_parents):
1845
# the XML is now updated with text versions
1847
entries = inv.iter_entries()
1849
for path, ie in entries:
1850
assert getattr(ie, 'revision', None) is not None, \
1851
'no revision on {%s} in {%s}' % \
1852
(file_id, rev.revision_id)
1853
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
1854
new_inv_sha1 = sha_string(new_inv_xml)
1855
self.inv_weave.add_lines(rev.revision_id,
1857
new_inv_xml.splitlines(True))
1858
rev.inventory_sha1 = new_inv_sha1
1860
def _convert_revision_contents(self, rev, inv, present_parents):
1861
"""Convert all the files within a revision.
1863
Also upgrade the inventory to refer to the text revision ids."""
1864
rev_id = rev.revision_id
1865
mutter('converting texts of revision {%s}',
1867
parent_invs = map(self._load_updated_inventory, present_parents)
1868
entries = inv.iter_entries()
1870
for path, ie in entries:
1871
self._convert_file_version(rev, ie, parent_invs)
1873
def _convert_file_version(self, rev, ie, parent_invs):
1874
"""Convert one version of one file.
1876
The file needs to be added into the weave if it is a merge
1877
of >=2 parents or if it's changed from its parent.
1879
file_id = ie.file_id
1880
rev_id = rev.revision_id
1881
w = self.text_weaves.get(file_id)
1884
self.text_weaves[file_id] = w
1885
text_changed = False
1886
previous_entries = ie.find_previous_heads(parent_invs,
1890
for old_revision in previous_entries:
1891
# if this fails, its a ghost ?
1892
assert old_revision in self.converted_revs, \
1893
"Revision {%s} not in converted_revs" % old_revision
1894
self.snapshot_ie(previous_entries, ie, w, rev_id)
1896
assert getattr(ie, 'revision', None) is not None
1898
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
1899
# TODO: convert this logic, which is ~= snapshot to
1900
# a call to:. This needs the path figured out. rather than a work_tree
1901
# a v4 revision_tree can be given, or something that looks enough like
1902
# one to give the file content to the entry if it needs it.
1903
# and we need something that looks like a weave store for snapshot to
1905
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
1906
if len(previous_revisions) == 1:
1907
previous_ie = previous_revisions.values()[0]
1908
if ie._unchanged(previous_ie):
1909
ie.revision = previous_ie.revision
1912
text = self.branch.repository.text_store.get(ie.text_id)
1913
file_lines = text.readlines()
1914
assert sha_strings(file_lines) == ie.text_sha1
1915
assert sum(map(len, file_lines)) == ie.text_size
1916
w.add_lines(rev_id, previous_revisions, file_lines)
1917
self.text_count += 1
1919
w.add_lines(rev_id, previous_revisions, [])
1920
ie.revision = rev_id
1922
def _make_order(self):
1923
"""Return a suitable order for importing revisions.
1925
The order must be such that an revision is imported after all
1926
its (present) parents.
1928
todo = set(self.revisions.keys())
1929
done = self.absent_revisions.copy()
1932
# scan through looking for a revision whose parents
1934
for rev_id in sorted(list(todo)):
1935
rev = self.revisions[rev_id]
1936
parent_ids = set(rev.parent_ids)
1937
if parent_ids.issubset(done):
1938
# can take this one now
1939
order.append(rev_id)
1945
class ConvertBzrDir5To6(Converter):
1946
"""Converts format 5 bzr dirs to format 6."""
1948
def convert(self, to_convert, pb):
1949
"""See Converter.convert()."""
1950
self.bzrdir = to_convert
1952
self.pb.note('starting upgrade from format 5 to 6')
1953
self._convert_to_prefixed()
1954
return BzrDir.open(self.bzrdir.root_transport.base)
1956
def _convert_to_prefixed(self):
1957
from bzrlib.store import TransportStore
1958
self.bzrdir.transport.delete('branch-format')
1959
for store_name in ["weaves", "revision-store"]:
1960
self.pb.note("adding prefixes to %s" % store_name)
1961
store_transport = self.bzrdir.transport.clone(store_name)
1962
store = TransportStore(store_transport, prefixed=True)
1963
for urlfilename in store_transport.list_dir('.'):
1964
filename = urlutils.unescape(urlfilename)
1965
if (filename.endswith(".weave") or
1966
filename.endswith(".gz") or
1967
filename.endswith(".sig")):
1968
file_id = os.path.splitext(filename)[0]
1971
prefix_dir = store.hash_prefix(file_id)
1972
# FIXME keep track of the dirs made RBC 20060121
1974
store_transport.move(filename, prefix_dir + '/' + filename)
1975
except errors.NoSuchFile: # catches missing dirs strangely enough
1976
store_transport.mkdir(prefix_dir)
1977
store_transport.move(filename, prefix_dir + '/' + filename)
1978
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
1981
class ConvertBzrDir6ToMeta(Converter):
1982
"""Converts format 6 bzr dirs to metadirs."""
1984
def convert(self, to_convert, pb):
1985
"""See Converter.convert()."""
1986
from bzrlib.repofmt.weaverepo import RepositoryFormat7
1987
from bzrlib.branch import BzrBranchFormat5
1988
self.bzrdir = to_convert
1991
self.total = 20 # the steps we know about
1992
self.garbage_inventories = []
1994
self.pb.note('starting upgrade from format 6 to metadir')
1995
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
1996
# its faster to move specific files around than to open and use the apis...
1997
# first off, nuke ancestry.weave, it was never used.
1999
self.step('Removing ancestry.weave')
2000
self.bzrdir.transport.delete('ancestry.weave')
2001
except errors.NoSuchFile:
2003
# find out whats there
2004
self.step('Finding branch files')
2005
last_revision = self.bzrdir.open_branch().last_revision()
2006
bzrcontents = self.bzrdir.transport.list_dir('.')
2007
for name in bzrcontents:
2008
if name.startswith('basis-inventory.'):
2009
self.garbage_inventories.append(name)
2010
# create new directories for repository, working tree and branch
2011
self.dir_mode = self.bzrdir._control_files._dir_mode
2012
self.file_mode = self.bzrdir._control_files._file_mode
2013
repository_names = [('inventory.weave', True),
2014
('revision-store', True),
2016
self.step('Upgrading repository ')
2017
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2018
self.make_lock('repository')
2019
# we hard code the formats here because we are converting into
2020
# the meta format. The meta format upgrader can take this to a
2021
# future format within each component.
2022
self.put_format('repository', RepositoryFormat7())
2023
for entry in repository_names:
2024
self.move_entry('repository', entry)
2026
self.step('Upgrading branch ')
2027
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2028
self.make_lock('branch')
2029
self.put_format('branch', BzrBranchFormat5())
2030
branch_files = [('revision-history', True),
2031
('branch-name', True),
2033
for entry in branch_files:
2034
self.move_entry('branch', entry)
2036
checkout_files = [('pending-merges', True),
2037
('inventory', True),
2038
('stat-cache', False)]
2039
# If a mandatory checkout file is not present, the branch does not have
2040
# a functional checkout. Do not create a checkout in the converted
2042
for name, mandatory in checkout_files:
2043
if mandatory and name not in bzrcontents:
2044
has_checkout = False
2048
if not has_checkout:
2049
self.pb.note('No working tree.')
2050
# If some checkout files are there, we may as well get rid of them.
2051
for name, mandatory in checkout_files:
2052
if name in bzrcontents:
2053
self.bzrdir.transport.delete(name)
2055
from bzrlib.workingtree import WorkingTreeFormat3
2056
self.step('Upgrading working tree')
2057
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2058
self.make_lock('checkout')
2060
'checkout', WorkingTreeFormat3())
2061
self.bzrdir.transport.delete_multi(
2062
self.garbage_inventories, self.pb)
2063
for entry in checkout_files:
2064
self.move_entry('checkout', entry)
2065
if last_revision is not None:
2066
self.bzrdir._control_files.put_utf8(
2067
'checkout/last-revision', last_revision)
2068
self.bzrdir._control_files.put_utf8(
2069
'branch-format', BzrDirMetaFormat1().get_format_string())
2070
return BzrDir.open(self.bzrdir.root_transport.base)
2072
def make_lock(self, name):
2073
"""Make a lock for the new control dir name."""
2074
self.step('Make %s lock' % name)
2075
ld = lockdir.LockDir(self.bzrdir.transport,
2077
file_modebits=self.file_mode,
2078
dir_modebits=self.dir_mode)
2081
def move_entry(self, new_dir, entry):
2082
"""Move then entry name into new_dir."""
2084
mandatory = entry[1]
2085
self.step('Moving %s' % name)
2087
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2088
except errors.NoSuchFile:
2092
def put_format(self, dirname, format):
2093
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
2096
class ConvertMetaToMeta(Converter):
2097
"""Converts the components of metadirs."""
2099
def __init__(self, target_format):
2100
"""Create a metadir to metadir converter.
2102
:param target_format: The final metadir format that is desired.
2104
self.target_format = target_format
2106
def convert(self, to_convert, pb):
2107
"""See Converter.convert()."""
2108
self.bzrdir = to_convert
2112
self.step('checking repository format')
2114
repo = self.bzrdir.open_repository()
2115
except errors.NoRepositoryPresent:
2118
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2119
from bzrlib.repository import CopyConverter
2120
self.pb.note('starting repository conversion')
2121
converter = CopyConverter(self.target_format.repository_format)
2122
converter.convert(repo, pb)
2124
branch = self.bzrdir.open_branch()
2125
except errors.NotBranchError:
2128
# TODO: conversions of Branch and Tree should be done by
2129
# InterXFormat lookups
2130
# Avoid circular imports
2131
from bzrlib import branch as _mod_branch
2132
if (branch._format.__class__ is _mod_branch.BzrBranchFormat5 and
2133
self.target_format.get_branch_format().__class__ is
2134
_mod_branch.BzrBranchFormat6):
2135
branch_converter = _mod_branch.Converter5to6()
2136
branch_converter.convert(branch)
2138
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2139
except (errors.NoWorkingTree, errors.NotLocalUrl):
2142
# TODO: conversions of Branch and Tree should be done by
2143
# InterXFormat lookups
2144
if (isinstance(tree, workingtree.WorkingTree3) and
2145
not isinstance(tree, workingtree_4.WorkingTree4) and
2146
isinstance(self.target_format.workingtree_format,
2147
workingtree_4.WorkingTreeFormat4)):
2148
workingtree_4.Converter3to4().convert(tree)
2152
class BzrDirFormatInfo(object):
2154
def __init__(self, native, deprecated, hidden):
2155
self.deprecated = deprecated
2156
self.native = native
2157
self.hidden = hidden
2160
class BzrDirFormatRegistry(registry.Registry):
2161
"""Registry of user-selectable BzrDir subformats.
2163
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2164
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2167
def register_metadir(self, key,
2168
repository_format, help, native=True, deprecated=False,
2172
"""Register a metadir subformat.
2174
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2175
by the Repository format.
2177
:param repository_format: The fully-qualified repository format class
2179
:param branch_format: Fully-qualified branch format class name as
2181
:param tree_format: Fully-qualified tree format class name as
2184
# This should be expanded to support setting WorkingTree and Branch
2185
# formats, once BzrDirMetaFormat1 supports that.
2186
def _load(full_name):
2187
mod_name, factory_name = full_name.rsplit('.', 1)
2189
mod = __import__(mod_name, globals(), locals(),
2191
except ImportError, e:
2192
raise ImportError('failed to load %s: %s' % (full_name, e))
2194
factory = getattr(mod, factory_name)
2195
except AttributeError:
2196
raise AttributeError('no factory %s in module %r'
2201
bd = BzrDirMetaFormat1()
2202
if branch_format is not None:
2203
bd.set_branch_format(_load(branch_format))
2204
if tree_format is not None:
2205
bd.workingtree_format = _load(tree_format)
2206
if repository_format is not None:
2207
bd.repository_format = _load(repository_format)
2209
self.register(key, helper, help, native, deprecated, hidden)
2211
def register(self, key, factory, help, native=True, deprecated=False,
2213
"""Register a BzrDirFormat factory.
2215
The factory must be a callable that takes one parameter: the key.
2216
It must produce an instance of the BzrDirFormat when called.
2218
This function mainly exists to prevent the info object from being
2221
registry.Registry.register(self, key, factory, help,
2222
BzrDirFormatInfo(native, deprecated, hidden))
2224
def register_lazy(self, key, module_name, member_name, help, native=True,
2225
deprecated=False, hidden=False):
2226
registry.Registry.register_lazy(self, key, module_name, member_name,
2227
help, BzrDirFormatInfo(native, deprecated, hidden))
2229
def set_default(self, key):
2230
"""Set the 'default' key to be a clone of the supplied key.
2232
This method must be called once and only once.
2234
registry.Registry.register(self, 'default', self.get(key),
2235
self.get_help(key), info=self.get_info(key))
2237
def set_default_repository(self, key):
2238
"""Set the FormatRegistry default and Repository default.
2240
This is a transitional method while Repository.set_default_format
2243
if 'default' in self:
2244
self.remove('default')
2245
self.set_default(key)
2246
format = self.get('default')()
2247
assert isinstance(format, BzrDirMetaFormat1)
2249
def make_bzrdir(self, key):
2250
return self.get(key)()
2252
def help_topic(self, topic):
2253
output = textwrap.dedent("""\
2254
Bazaar directory formats
2255
------------------------
2257
These formats can be used for creating branches, working trees, and
2261
default_help = self.get_help('default')
2263
for key in self.keys():
2264
if key == 'default':
2266
help = self.get_help(key)
2267
if help == default_help:
2268
default_realkey = key
2270
help_pairs.append((key, help))
2272
def wrapped(key, help, info):
2274
help = '(native) ' + help
2275
return ' %s:\n%s\n\n' % (key,
2276
textwrap.fill(help, initial_indent=' ',
2277
subsequent_indent=' '))
2278
output += wrapped('%s/default' % default_realkey, default_help,
2279
self.get_info('default'))
2280
deprecated_pairs = []
2281
for key, help in help_pairs:
2282
info = self.get_info(key)
2285
elif info.deprecated:
2286
deprecated_pairs.append((key, help))
2288
output += wrapped(key, help, info)
2289
if len(deprecated_pairs) > 0:
2290
output += "Deprecated formats\n------------------\n\n"
2291
for key, help in deprecated_pairs:
2292
info = self.get_info(key)
2293
output += wrapped(key, help, info)
2298
format_registry = BzrDirFormatRegistry()
2299
format_registry.register('weave', BzrDirFormat6,
2300
'Pre-0.8 format. Slower than knit and does not'
2301
' support checkouts or shared repositories.',
2303
format_registry.register_metadir('knit',
2304
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2305
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2306
branch_format='bzrlib.branch.BzrBranchFormat5',
2307
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2308
format_registry.register_metadir('metaweave',
2309
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2310
'Transitional format in 0.8. Slower than knit.',
2311
branch_format='bzrlib.branch.BzrBranchFormat5',
2312
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2314
format_registry.register_metadir('dirstate',
2315
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2316
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2317
'above when accessed over the network.',
2318
branch_format='bzrlib.branch.BzrBranchFormat5',
2319
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2320
# directly from workingtree_4 triggers a circular import.
2321
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2323
format_registry.register_metadir('dirstate-tags',
2324
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2325
help='New in 0.15: Fast local operations and improved scaling for '
2326
'network operations. Additionally adds support for tags.'
2327
' Incompatible with bzr < 0.15.',
2328
branch_format='bzrlib.branch.BzrBranchFormat6',
2329
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2331
format_registry.register_metadir('dirstate-with-subtree',
2332
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2333
help='New in 0.15: Fast local operations and improved scaling for '
2334
'network operations. Additionally adds support for versioning nested '
2335
'bzr branches. Incompatible with bzr < 0.15.',
2336
branch_format='bzrlib.branch.BzrBranchFormat6',
2337
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2340
format_registry.set_default('dirstate')
added
removed
bzrlib/bzrdir.py
