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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 get_transport
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from bzrlib.weave import Weave
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from bzrlib.trace import mutter, note
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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 the format itself.
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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, basis=None, force_new_repo=False):
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"""Clone this bzrdir and its contents to url verbatim.
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If urls last component does not exist, it will be created.
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if revision_id is not None, then the clone operation may tune
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itself to download less data.
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:param force_new_repo: Do not use a shared repository for the target
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even if one is available.
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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result = self._format.initialize(url)
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local_repo = self.find_repository()
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except errors.NoRepositoryPresent:
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# may need to copy content in
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result_repo = local_repo.clone(
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revision_id=revision_id,
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result_repo.set_make_working_trees(local_repo.make_working_trees())
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result_repo = result.find_repository()
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# fetch content this dir needs.
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# XXX FIXME RBC 20060214 need tests for this when the basis
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result_repo.fetch(basis_repo, revision_id=revision_id)
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result_repo.fetch(local_repo, revision_id=revision_id)
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except errors.NoRepositoryPresent:
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# needed to make one anyway.
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result_repo = local_repo.clone(
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revision_id=revision_id,
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result_repo.set_make_working_trees(local_repo.make_working_trees())
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# 1 if there is a branch present
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# make sure its content is available in the target repository
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self.open_branch().clone(result, revision_id=revision_id)
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except errors.NotBranchError:
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self.open_workingtree().clone(result, basis=basis_tree)
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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def _get_basis_components(self, basis):
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"""Retrieve the basis components that are available at basis."""
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return None, None, None
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basis_tree = basis.open_workingtree()
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basis_branch = basis_tree.branch
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basis_repo = basis_branch.repository
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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basis_branch = basis.open_branch()
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basis_repo = basis_branch.repository
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except errors.NotBranchError:
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basis_repo = basis.open_repository()
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except errors.NoRepositoryPresent:
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return basis_repo, basis_branch, basis_tree
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# TODO: This should be given a Transport, and should chdir up; otherwise
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# this will open a new connection.
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def _make_tail(self, url):
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head, tail = urlutils.split(url)
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if tail and tail != '.':
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t = 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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format = BzrDirFormat.find_format(transport)
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BzrDir._check_supported(format, _unsupported,
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basedir=transport.base)
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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, basis=None):
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def related_repository(bzrdir):
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branch = bzrdir.open_branch()
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return branch.repository
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except errors.NotBranchError:
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return bzrdir.open_repository()
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result_format = self._format.__class__()
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source_repository = related_repository(self)
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except errors.NoRepositoryPresent:
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source_repository = related_repository(self)
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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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tree = self.open_workingtree()
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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, basis=None):
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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, basis=None, force_new_repo=False,
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"""Create a copy of this bzrdir prepared for use as a new line of
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If urls last component does not exist, it will be created.
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Attributes related to the identity of the source branch like
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branch nickname will be cleaned, a working tree is created
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whether one existed before or not; and a local branch is always
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if revision_id is not None, then the clone operation may tune
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itself to download less data.
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cloning_format = self.cloning_metadir(basis)
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result = cloning_format.initialize(url)
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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source_branch = self.open_branch()
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source_repository = source_branch.repository
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except errors.NotBranchError:
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source_repository = self.open_repository()
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except errors.NoRepositoryPresent:
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# copy the entire basis one if there is one
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# but there is no repository.
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source_repository = basis_repo
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result_repo = result.find_repository()
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except errors.NoRepositoryPresent:
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if source_repository is None and result_repo is not None:
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elif source_repository is None and result_repo is None:
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# no repo available, make a new one
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result.create_repository()
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elif source_repository is not None and result_repo is None:
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# have source, and want to make a new target repo
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# we don't clone the repo because that preserves attributes
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# like is_shared(), and we have not yet implemented a
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# repository sprout().
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result_repo = result.create_repository()
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if result_repo is not None:
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# fetch needed content into target.
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# XXX FIXME RBC 20060214 need tests for this when the basis
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result_repo.fetch(basis_repo, revision_id=revision_id)
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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
775
# 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':
791
basis = wt.basis_tree()
793
subtrees = basis.iter_references()
794
recurse_branch = wt.branch
795
elif source_branch is not None:
796
basis = source_branch.basis_tree()
798
subtrees = basis.iter_references()
799
recurse_branch = source_branch
804
for path, file_id in subtrees:
805
target = urlutils.join(url, urlutils.escape(path))
806
sublocation = source_branch.reference_parent(file_id, path)
807
sublocation.bzrdir.sprout(target,
808
basis.get_reference_revision(file_id, path),
809
force_new_repo=force_new_repo, recurse=recurse)
811
if basis is not None:
816
class BzrDirPreSplitOut(BzrDir):
817
"""A common class for the all-in-one formats."""
819
def __init__(self, _transport, _format):
820
"""See BzrDir.__init__."""
821
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
822
assert self._format._lock_class == lockable_files.TransportLock
823
assert self._format._lock_file_name == 'branch-lock'
824
self._control_files = lockable_files.LockableFiles(
825
self.get_branch_transport(None),
826
self._format._lock_file_name,
827
self._format._lock_class)
829
def break_lock(self):
830
"""Pre-splitout bzrdirs do not suffer from stale locks."""
831
raise NotImplementedError(self.break_lock)
833
def clone(self, url, revision_id=None, basis=None, force_new_repo=False):
834
"""See BzrDir.clone()."""
835
from bzrlib.workingtree import WorkingTreeFormat2
837
result = self._format._initialize_for_clone(url)
838
basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
839
self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
840
from_branch = self.open_branch()
841
from_branch.clone(result, revision_id=revision_id)
843
self.open_workingtree().clone(result, basis=basis_tree)
844
except errors.NotLocalUrl:
845
# make a new one, this format always has to have one.
847
WorkingTreeFormat2().initialize(result)
848
except errors.NotLocalUrl:
849
# but we cannot do it for remote trees.
850
to_branch = result.open_branch()
851
WorkingTreeFormat2().stub_initialize_remote(to_branch.control_files)
854
def create_branch(self):
855
"""See BzrDir.create_branch."""
856
return self.open_branch()
858
def create_repository(self, shared=False):
859
"""See BzrDir.create_repository."""
861
raise errors.IncompatibleFormat('shared repository', self._format)
862
return self.open_repository()
864
def create_workingtree(self, revision_id=None):
865
"""See BzrDir.create_workingtree."""
866
# this looks buggy but is not -really-
867
# because this format creates the workingtree when the bzrdir is
869
# clone and sprout will have set the revision_id
870
# and that will have set it for us, its only
871
# specific uses of create_workingtree in isolation
872
# that can do wonky stuff here, and that only
873
# happens for creating checkouts, which cannot be
874
# done on this format anyway. So - acceptable wart.
875
result = self.open_workingtree(recommend_upgrade=False)
876
if revision_id is not None:
877
if revision_id == _mod_revision.NULL_REVISION:
878
result.set_parent_ids([])
880
result.set_parent_ids([revision_id])
883
def destroy_workingtree(self):
884
"""See BzrDir.destroy_workingtree."""
885
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
887
def destroy_workingtree_metadata(self):
888
"""See BzrDir.destroy_workingtree_metadata."""
889
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
892
def get_branch_transport(self, branch_format):
893
"""See BzrDir.get_branch_transport()."""
894
if branch_format is None:
895
return self.transport
897
branch_format.get_format_string()
898
except NotImplementedError:
899
return self.transport
900
raise errors.IncompatibleFormat(branch_format, self._format)
902
def get_repository_transport(self, repository_format):
903
"""See BzrDir.get_repository_transport()."""
904
if repository_format is None:
905
return self.transport
907
repository_format.get_format_string()
908
except NotImplementedError:
909
return self.transport
910
raise errors.IncompatibleFormat(repository_format, self._format)
912
def get_workingtree_transport(self, workingtree_format):
913
"""See BzrDir.get_workingtree_transport()."""
914
if workingtree_format is None:
915
return self.transport
917
workingtree_format.get_format_string()
918
except NotImplementedError:
919
return self.transport
920
raise errors.IncompatibleFormat(workingtree_format, self._format)
922
def needs_format_conversion(self, format=None):
923
"""See BzrDir.needs_format_conversion()."""
924
# if the format is not the same as the system default,
925
# an upgrade is needed.
927
format = BzrDirFormat.get_default_format()
928
return not isinstance(self._format, format.__class__)
930
def open_branch(self, unsupported=False):
931
"""See BzrDir.open_branch."""
932
from bzrlib.branch import BzrBranchFormat4
933
format = BzrBranchFormat4()
934
self._check_supported(format, unsupported)
935
return format.open(self, _found=True)
937
def sprout(self, url, revision_id=None, basis=None, force_new_repo=False):
938
"""See BzrDir.sprout()."""
939
from bzrlib.workingtree import WorkingTreeFormat2
941
result = self._format._initialize_for_clone(url)
942
basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
944
self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
945
except errors.NoRepositoryPresent:
948
self.open_branch().sprout(result, revision_id=revision_id)
949
except errors.NotBranchError:
951
# we always want a working tree
952
WorkingTreeFormat2().initialize(result)
956
class BzrDir4(BzrDirPreSplitOut):
957
"""A .bzr version 4 control object.
959
This is a deprecated format and may be removed after sept 2006.
962
def create_repository(self, shared=False):
963
"""See BzrDir.create_repository."""
964
return self._format.repository_format.initialize(self, shared)
966
def needs_format_conversion(self, format=None):
967
"""Format 4 dirs are always in need of conversion."""
970
def open_repository(self):
971
"""See BzrDir.open_repository."""
972
from bzrlib.repofmt.weaverepo import RepositoryFormat4
973
return RepositoryFormat4().open(self, _found=True)
976
class BzrDir5(BzrDirPreSplitOut):
977
"""A .bzr version 5 control object.
979
This is a deprecated format and may be removed after sept 2006.
982
def open_repository(self):
983
"""See BzrDir.open_repository."""
984
from bzrlib.repofmt.weaverepo import RepositoryFormat5
985
return RepositoryFormat5().open(self, _found=True)
987
def open_workingtree(self, _unsupported=False,
988
recommend_upgrade=True):
989
"""See BzrDir.create_workingtree."""
990
from bzrlib.workingtree import WorkingTreeFormat2
991
wt_format = WorkingTreeFormat2()
992
# we don't warn here about upgrades; that ought to be handled for the
994
return wt_format.open(self, _found=True)
997
class BzrDir6(BzrDirPreSplitOut):
998
"""A .bzr version 6 control object.
1000
This is a deprecated format and may be removed after sept 2006.
1003
def open_repository(self):
1004
"""See BzrDir.open_repository."""
1005
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1006
return RepositoryFormat6().open(self, _found=True)
1008
def open_workingtree(self, _unsupported=False,
1009
recommend_upgrade=True):
1010
"""See BzrDir.create_workingtree."""
1011
# we don't warn here about upgrades; that ought to be handled for the
1013
from bzrlib.workingtree import WorkingTreeFormat2
1014
return WorkingTreeFormat2().open(self, _found=True)
1017
class BzrDirMeta1(BzrDir):
1018
"""A .bzr meta version 1 control object.
1020
This is the first control object where the
1021
individual aspects are really split out: there are separate repository,
1022
workingtree and branch subdirectories and any subset of the three can be
1023
present within a BzrDir.
1026
def can_convert_format(self):
1027
"""See BzrDir.can_convert_format()."""
1030
def create_branch(self):
1031
"""See BzrDir.create_branch."""
1032
return self._format.get_branch_format().initialize(self)
1034
def create_repository(self, shared=False):
1035
"""See BzrDir.create_repository."""
1036
return self._format.repository_format.initialize(self, shared)
1038
def create_workingtree(self, revision_id=None):
1039
"""See BzrDir.create_workingtree."""
1040
from bzrlib.workingtree import WorkingTreeFormat
1041
return self._format.workingtree_format.initialize(self, revision_id)
1043
def destroy_workingtree(self):
1044
"""See BzrDir.destroy_workingtree."""
1045
wt = self.open_workingtree(recommend_upgrade=False)
1046
repository = wt.branch.repository
1047
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1048
wt.revert([], old_tree=empty)
1049
self.destroy_workingtree_metadata()
1051
def destroy_workingtree_metadata(self):
1052
self.transport.delete_tree('checkout')
1054
def _get_mkdir_mode(self):
1055
"""Figure out the mode to use when creating a bzrdir subdir."""
1056
temp_control = lockable_files.LockableFiles(self.transport, '',
1057
lockable_files.TransportLock)
1058
return temp_control._dir_mode
1060
def get_branch_transport(self, branch_format):
1061
"""See BzrDir.get_branch_transport()."""
1062
if branch_format is None:
1063
return self.transport.clone('branch')
1065
branch_format.get_format_string()
1066
except NotImplementedError:
1067
raise errors.IncompatibleFormat(branch_format, self._format)
1069
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1070
except errors.FileExists:
1072
return self.transport.clone('branch')
1074
def get_repository_transport(self, repository_format):
1075
"""See BzrDir.get_repository_transport()."""
1076
if repository_format is None:
1077
return self.transport.clone('repository')
1079
repository_format.get_format_string()
1080
except NotImplementedError:
1081
raise errors.IncompatibleFormat(repository_format, self._format)
1083
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1084
except errors.FileExists:
1086
return self.transport.clone('repository')
1088
def get_workingtree_transport(self, workingtree_format):
1089
"""See BzrDir.get_workingtree_transport()."""
1090
if workingtree_format is None:
1091
return self.transport.clone('checkout')
1093
workingtree_format.get_format_string()
1094
except NotImplementedError:
1095
raise errors.IncompatibleFormat(workingtree_format, self._format)
1097
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1098
except errors.FileExists:
1100
return self.transport.clone('checkout')
1102
def needs_format_conversion(self, format=None):
1103
"""See BzrDir.needs_format_conversion()."""
1105
format = BzrDirFormat.get_default_format()
1106
if not isinstance(self._format, format.__class__):
1107
# it is not a meta dir format, conversion is needed.
1109
# we might want to push this down to the repository?
1111
if not isinstance(self.open_repository()._format,
1112
format.repository_format.__class__):
1113
# the repository needs an upgrade.
1115
except errors.NoRepositoryPresent:
1118
if not isinstance(self.open_branch()._format,
1119
format.get_branch_format().__class__):
1120
# the branch needs an upgrade.
1122
except errors.NotBranchError:
1125
my_wt = self.open_workingtree(recommend_upgrade=False)
1126
if not isinstance(my_wt._format,
1127
format.workingtree_format.__class__):
1128
# the workingtree needs an upgrade.
1130
except (errors.NoWorkingTree, errors.NotLocalUrl):
1134
def open_branch(self, unsupported=False):
1135
"""See BzrDir.open_branch."""
1136
from bzrlib.branch import BranchFormat
1137
format = BranchFormat.find_format(self)
1138
self._check_supported(format, unsupported)
1139
return format.open(self, _found=True)
1141
def open_repository(self, unsupported=False):
1142
"""See BzrDir.open_repository."""
1143
from bzrlib.repository import RepositoryFormat
1144
format = RepositoryFormat.find_format(self)
1145
self._check_supported(format, unsupported)
1146
return format.open(self, _found=True)
1148
def open_workingtree(self, unsupported=False,
1149
recommend_upgrade=True):
1150
"""See BzrDir.open_workingtree."""
1151
from bzrlib.workingtree import WorkingTreeFormat
1152
format = WorkingTreeFormat.find_format(self)
1153
self._check_supported(format, unsupported,
1155
basedir=self.root_transport.base)
1156
return format.open(self, _found=True)
1159
class BzrDirFormat(object):
1160
"""An encapsulation of the initialization and open routines for a format.
1162
Formats provide three things:
1163
* An initialization routine,
1167
Formats are placed in an dict by their format string for reference
1168
during bzrdir opening. These should be subclasses of BzrDirFormat
1171
Once a format is deprecated, just deprecate the initialize and open
1172
methods on the format class. Do not deprecate the object, as the
1173
object will be created every system load.
1176
_default_format = None
1177
"""The default format used for new .bzr dirs."""
1180
"""The known formats."""
1182
_control_formats = []
1183
"""The registered control formats - .bzr, ....
1185
This is a list of BzrDirFormat objects.
1188
_lock_file_name = 'branch-lock'
1190
# _lock_class must be set in subclasses to the lock type, typ.
1191
# TransportLock or LockDir
1194
def find_format(klass, transport):
1195
"""Return the format present at transport."""
1196
for format in klass._control_formats:
1198
return format.probe_transport(transport)
1199
except errors.NotBranchError:
1200
# this format does not find a control dir here.
1202
raise errors.NotBranchError(path=transport.base)
1205
def probe_transport(klass, transport):
1206
"""Return the .bzrdir style transport present at URL."""
1208
format_string = transport.get(".bzr/branch-format").read()
1209
except errors.NoSuchFile:
1210
raise errors.NotBranchError(path=transport.base)
1213
return klass._formats[format_string]
1215
raise errors.UnknownFormatError(format=format_string)
1218
def get_default_format(klass):
1219
"""Return the current default format."""
1220
return klass._default_format
1222
def get_format_string(self):
1223
"""Return the ASCII format string that identifies this format."""
1224
raise NotImplementedError(self.get_format_string)
1226
def get_format_description(self):
1227
"""Return the short description for this format."""
1228
raise NotImplementedError(self.get_format_description)
1230
def get_converter(self, format=None):
1231
"""Return the converter to use to convert bzrdirs needing converts.
1233
This returns a bzrlib.bzrdir.Converter object.
1235
This should return the best upgrader to step this format towards the
1236
current default format. In the case of plugins we can/should provide
1237
some means for them to extend the range of returnable converters.
1239
:param format: Optional format to override the default format of the
1242
raise NotImplementedError(self.get_converter)
1244
def initialize(self, url):
1245
"""Create a bzr control dir at this url and return an opened copy.
1247
Subclasses should typically override initialize_on_transport
1248
instead of this method.
1250
return self.initialize_on_transport(get_transport(url))
1252
def initialize_on_transport(self, transport):
1253
"""Initialize a new bzrdir in the base directory of a Transport."""
1254
# Since we don't have a .bzr directory, inherit the
1255
# mode from the root directory
1256
temp_control = lockable_files.LockableFiles(transport,
1257
'', lockable_files.TransportLock)
1258
temp_control._transport.mkdir('.bzr',
1259
# FIXME: RBC 20060121 don't peek under
1261
mode=temp_control._dir_mode)
1262
file_mode = temp_control._file_mode
1264
mutter('created control directory in ' + transport.base)
1265
control = transport.clone('.bzr')
1266
utf8_files = [('README',
1267
"This is a Bazaar-NG control directory.\n"
1268
"Do not change any files in this directory.\n"),
1269
('branch-format', self.get_format_string()),
1271
# NB: no need to escape relative paths that are url safe.
1272
control_files = lockable_files.LockableFiles(control,
1273
self._lock_file_name, self._lock_class)
1274
control_files.create_lock()
1275
control_files.lock_write()
1277
for file, content in utf8_files:
1278
control_files.put_utf8(file, content)
1280
control_files.unlock()
1281
return self.open(transport, _found=True)
1283
def is_supported(self):
1284
"""Is this format supported?
1286
Supported formats must be initializable and openable.
1287
Unsupported formats may not support initialization or committing or
1288
some other features depending on the reason for not being supported.
1292
def same_model(self, target_format):
1293
return (self.repository_format.rich_root_data ==
1294
target_format.rich_root_data)
1297
def known_formats(klass):
1298
"""Return all the known formats.
1300
Concrete formats should override _known_formats.
1302
# There is double indirection here to make sure that control
1303
# formats used by more than one dir format will only be probed
1304
# once. This can otherwise be quite expensive for remote connections.
1306
for format in klass._control_formats:
1307
result.update(format._known_formats())
1311
def _known_formats(klass):
1312
"""Return the known format instances for this control format."""
1313
return set(klass._formats.values())
1315
def open(self, transport, _found=False):
1316
"""Return an instance of this format for the dir transport points at.
1318
_found is a private parameter, do not use it.
1321
found_format = BzrDirFormat.find_format(transport)
1322
if not isinstance(found_format, self.__class__):
1323
raise AssertionError("%s was asked to open %s, but it seems to need "
1325
% (self, transport, found_format))
1326
return self._open(transport)
1328
def _open(self, transport):
1329
"""Template method helper for opening BzrDirectories.
1331
This performs the actual open and any additional logic or parameter
1334
raise NotImplementedError(self._open)
1337
def register_format(klass, format):
1338
klass._formats[format.get_format_string()] = format
1341
def register_control_format(klass, format):
1342
"""Register a format that does not use '.bzrdir' for its control dir.
1344
TODO: This should be pulled up into a 'ControlDirFormat' base class
1345
which BzrDirFormat can inherit from, and renamed to register_format
1346
there. It has been done without that for now for simplicity of
1349
klass._control_formats.append(format)
1352
@symbol_versioning.deprecated_method(symbol_versioning.zero_fourteen)
1353
def set_default_format(klass, format):
1354
klass._set_default_format(format)
1357
def _set_default_format(klass, format):
1358
"""Set default format (for testing behavior of defaults only)"""
1359
klass._default_format = format
1362
return self.get_format_string()[:-1]
1365
def unregister_format(klass, format):
1366
assert klass._formats[format.get_format_string()] is format
1367
del klass._formats[format.get_format_string()]
1370
def unregister_control_format(klass, format):
1371
klass._control_formats.remove(format)
1374
# register BzrDirFormat as a control format
1375
BzrDirFormat.register_control_format(BzrDirFormat)
1378
class BzrDirFormat4(BzrDirFormat):
1379
"""Bzr dir format 4.
1381
This format is a combined format for working tree, branch and repository.
1383
- Format 1 working trees [always]
1384
- Format 4 branches [always]
1385
- Format 4 repositories [always]
1387
This format is deprecated: it indexes texts using a text it which is
1388
removed in format 5; write support for this format has been removed.
1391
_lock_class = lockable_files.TransportLock
1393
def get_format_string(self):
1394
"""See BzrDirFormat.get_format_string()."""
1395
return "Bazaar-NG branch, format 0.0.4\n"
1397
def get_format_description(self):
1398
"""See BzrDirFormat.get_format_description()."""
1399
return "All-in-one format 4"
1401
def get_converter(self, format=None):
1402
"""See BzrDirFormat.get_converter()."""
1403
# there is one and only one upgrade path here.
1404
return ConvertBzrDir4To5()
1406
def initialize_on_transport(self, transport):
1407
"""Format 4 branches cannot be created."""
1408
raise errors.UninitializableFormat(self)
1410
def is_supported(self):
1411
"""Format 4 is not supported.
1413
It is not supported because the model changed from 4 to 5 and the
1414
conversion logic is expensive - so doing it on the fly was not
1419
def _open(self, transport):
1420
"""See BzrDirFormat._open."""
1421
return BzrDir4(transport, self)
1423
def __return_repository_format(self):
1424
"""Circular import protection."""
1425
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1426
return RepositoryFormat4()
1427
repository_format = property(__return_repository_format)
1430
class BzrDirFormat5(BzrDirFormat):
1431
"""Bzr control format 5.
1433
This format is a combined format for working tree, branch and repository.
1435
- Format 2 working trees [always]
1436
- Format 4 branches [always]
1437
- Format 5 repositories [always]
1438
Unhashed stores in the repository.
1441
_lock_class = lockable_files.TransportLock
1443
def get_format_string(self):
1444
"""See BzrDirFormat.get_format_string()."""
1445
return "Bazaar-NG branch, format 5\n"
1447
def get_format_description(self):
1448
"""See BzrDirFormat.get_format_description()."""
1449
return "All-in-one format 5"
1451
def get_converter(self, format=None):
1452
"""See BzrDirFormat.get_converter()."""
1453
# there is one and only one upgrade path here.
1454
return ConvertBzrDir5To6()
1456
def _initialize_for_clone(self, url):
1457
return self.initialize_on_transport(get_transport(url), _cloning=True)
1459
def initialize_on_transport(self, transport, _cloning=False):
1460
"""Format 5 dirs always have working tree, branch and repository.
1462
Except when they are being cloned.
1464
from bzrlib.branch import BzrBranchFormat4
1465
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1466
from bzrlib.workingtree import WorkingTreeFormat2
1467
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1468
RepositoryFormat5().initialize(result, _internal=True)
1470
branch = BzrBranchFormat4().initialize(result)
1472
WorkingTreeFormat2().initialize(result)
1473
except errors.NotLocalUrl:
1474
# Even though we can't access the working tree, we need to
1475
# create its control files.
1476
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1479
def _open(self, transport):
1480
"""See BzrDirFormat._open."""
1481
return BzrDir5(transport, self)
1483
def __return_repository_format(self):
1484
"""Circular import protection."""
1485
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1486
return RepositoryFormat5()
1487
repository_format = property(__return_repository_format)
1490
class BzrDirFormat6(BzrDirFormat):
1491
"""Bzr control format 6.
1493
This format is a combined format for working tree, branch and repository.
1495
- Format 2 working trees [always]
1496
- Format 4 branches [always]
1497
- Format 6 repositories [always]
1500
_lock_class = lockable_files.TransportLock
1502
def get_format_string(self):
1503
"""See BzrDirFormat.get_format_string()."""
1504
return "Bazaar-NG branch, format 6\n"
1506
def get_format_description(self):
1507
"""See BzrDirFormat.get_format_description()."""
1508
return "All-in-one format 6"
1510
def get_converter(self, format=None):
1511
"""See BzrDirFormat.get_converter()."""
1512
# there is one and only one upgrade path here.
1513
return ConvertBzrDir6ToMeta()
1515
def _initialize_for_clone(self, url):
1516
return self.initialize_on_transport(get_transport(url), _cloning=True)
1518
def initialize_on_transport(self, transport, _cloning=False):
1519
"""Format 6 dirs always have working tree, branch and repository.
1521
Except when they are being cloned.
1523
from bzrlib.branch import BzrBranchFormat4
1524
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1525
from bzrlib.workingtree import WorkingTreeFormat2
1526
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1527
RepositoryFormat6().initialize(result, _internal=True)
1529
branch = BzrBranchFormat4().initialize(result)
1531
WorkingTreeFormat2().initialize(result)
1532
except errors.NotLocalUrl:
1533
# Even though we can't access the working tree, we need to
1534
# create its control files.
1535
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1538
def _open(self, transport):
1539
"""See BzrDirFormat._open."""
1540
return BzrDir6(transport, self)
1542
def __return_repository_format(self):
1543
"""Circular import protection."""
1544
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1545
return RepositoryFormat6()
1546
repository_format = property(__return_repository_format)
1549
class BzrDirMetaFormat1(BzrDirFormat):
1550
"""Bzr meta control format 1
1552
This is the first format with split out working tree, branch and repository
1555
- Format 3 working trees [optional]
1556
- Format 5 branches [optional]
1557
- Format 7 repositories [optional]
1560
_lock_class = lockdir.LockDir
1563
self._workingtree_format = None
1564
self._branch_format = None
1566
def __eq__(self, other):
1567
if other.__class__ is not self.__class__:
1569
if other.repository_format != self.repository_format:
1571
if other.workingtree_format != self.workingtree_format:
1575
def __ne__(self, other):
1576
return not self == other
1578
def get_branch_format(self):
1579
if self._branch_format is None:
1580
from bzrlib.branch import BranchFormat
1581
self._branch_format = BranchFormat.get_default_format()
1582
return self._branch_format
1584
def set_branch_format(self, format):
1585
self._branch_format = format
1587
def get_converter(self, format=None):
1588
"""See BzrDirFormat.get_converter()."""
1590
format = BzrDirFormat.get_default_format()
1591
if not isinstance(self, format.__class__):
1592
# converting away from metadir is not implemented
1593
raise NotImplementedError(self.get_converter)
1594
return ConvertMetaToMeta(format)
1596
def get_format_string(self):
1597
"""See BzrDirFormat.get_format_string()."""
1598
return "Bazaar-NG meta directory, format 1\n"
1600
def get_format_description(self):
1601
"""See BzrDirFormat.get_format_description()."""
1602
return "Meta directory format 1"
1604
def _open(self, transport):
1605
"""See BzrDirFormat._open."""
1606
return BzrDirMeta1(transport, self)
1608
def __return_repository_format(self):
1609
"""Circular import protection."""
1610
if getattr(self, '_repository_format', None):
1611
return self._repository_format
1612
from bzrlib.repository import RepositoryFormat
1613
return RepositoryFormat.get_default_format()
1615
def __set_repository_format(self, value):
1616
"""Allow changint the repository format for metadir formats."""
1617
self._repository_format = value
1619
repository_format = property(__return_repository_format, __set_repository_format)
1621
def __get_workingtree_format(self):
1622
if self._workingtree_format is None:
1623
from bzrlib.workingtree import WorkingTreeFormat
1624
self._workingtree_format = WorkingTreeFormat.get_default_format()
1625
return self._workingtree_format
1627
def __set_workingtree_format(self, wt_format):
1628
self._workingtree_format = wt_format
1630
workingtree_format = property(__get_workingtree_format,
1631
__set_workingtree_format)
1634
BzrDirFormat.register_format(BzrDirFormat4())
1635
BzrDirFormat.register_format(BzrDirFormat5())
1636
BzrDirFormat.register_format(BzrDirFormat6())
1637
__default_format = BzrDirMetaFormat1()
1638
BzrDirFormat.register_format(__default_format)
1639
BzrDirFormat._default_format = __default_format
1642
class BzrDirTestProviderAdapter(object):
1643
"""A tool to generate a suite testing multiple bzrdir formats at once.
1645
This is done by copying the test once for each transport and injecting
1646
the transport_server, transport_readonly_server, and bzrdir_format
1647
classes into each copy. Each copy is also given a new id() to make it
1651
def __init__(self, transport_server, transport_readonly_server, formats):
1652
self._transport_server = transport_server
1653
self._transport_readonly_server = transport_readonly_server
1654
self._formats = formats
1656
def adapt(self, test):
1657
result = unittest.TestSuite()
1658
for format in self._formats:
1659
new_test = deepcopy(test)
1660
new_test.transport_server = self._transport_server
1661
new_test.transport_readonly_server = self._transport_readonly_server
1662
new_test.bzrdir_format = format
1663
def make_new_test_id():
1664
new_id = "%s(%s)" % (new_test.id(), format.__class__.__name__)
1665
return lambda: new_id
1666
new_test.id = make_new_test_id()
1667
result.addTest(new_test)
1671
class Converter(object):
1672
"""Converts a disk format object from one format to another."""
1674
def convert(self, to_convert, pb):
1675
"""Perform the conversion of to_convert, giving feedback via pb.
1677
:param to_convert: The disk object to convert.
1678
:param pb: a progress bar to use for progress information.
1681
def step(self, message):
1682
"""Update the pb by a step."""
1684
self.pb.update(message, self.count, self.total)
1687
class ConvertBzrDir4To5(Converter):
1688
"""Converts format 4 bzr dirs to format 5."""
1691
super(ConvertBzrDir4To5, self).__init__()
1692
self.converted_revs = set()
1693
self.absent_revisions = set()
1697
def convert(self, to_convert, pb):
1698
"""See Converter.convert()."""
1699
self.bzrdir = to_convert
1701
self.pb.note('starting upgrade from format 4 to 5')
1702
if isinstance(self.bzrdir.transport, LocalTransport):
1703
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1704
self._convert_to_weaves()
1705
return BzrDir.open(self.bzrdir.root_transport.base)
1707
def _convert_to_weaves(self):
1708
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1711
stat = self.bzrdir.transport.stat('weaves')
1712
if not S_ISDIR(stat.st_mode):
1713
self.bzrdir.transport.delete('weaves')
1714
self.bzrdir.transport.mkdir('weaves')
1715
except errors.NoSuchFile:
1716
self.bzrdir.transport.mkdir('weaves')
1717
# deliberately not a WeaveFile as we want to build it up slowly.
1718
self.inv_weave = Weave('inventory')
1719
# holds in-memory weaves for all files
1720
self.text_weaves = {}
1721
self.bzrdir.transport.delete('branch-format')
1722
self.branch = self.bzrdir.open_branch()
1723
self._convert_working_inv()
1724
rev_history = self.branch.revision_history()
1725
# to_read is a stack holding the revisions we still need to process;
1726
# appending to it adds new highest-priority revisions
1727
self.known_revisions = set(rev_history)
1728
self.to_read = rev_history[-1:]
1730
rev_id = self.to_read.pop()
1731
if (rev_id not in self.revisions
1732
and rev_id not in self.absent_revisions):
1733
self._load_one_rev(rev_id)
1735
to_import = self._make_order()
1736
for i, rev_id in enumerate(to_import):
1737
self.pb.update('converting revision', i, len(to_import))
1738
self._convert_one_rev(rev_id)
1740
self._write_all_weaves()
1741
self._write_all_revs()
1742
self.pb.note('upgraded to weaves:')
1743
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1744
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
1745
self.pb.note(' %6d texts', self.text_count)
1746
self._cleanup_spare_files_after_format4()
1747
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
1749
def _cleanup_spare_files_after_format4(self):
1750
# FIXME working tree upgrade foo.
1751
for n in 'merged-patches', 'pending-merged-patches':
1753
## assert os.path.getsize(p) == 0
1754
self.bzrdir.transport.delete(n)
1755
except errors.NoSuchFile:
1757
self.bzrdir.transport.delete_tree('inventory-store')
1758
self.bzrdir.transport.delete_tree('text-store')
1760
def _convert_working_inv(self):
1761
inv = xml4.serializer_v4.read_inventory(
1762
self.branch.control_files.get('inventory'))
1763
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
1764
# FIXME inventory is a working tree change.
1765
self.branch.control_files.put('inventory', StringIO(new_inv_xml))
1767
def _write_all_weaves(self):
1768
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
1769
weave_transport = self.bzrdir.transport.clone('weaves')
1770
weaves = WeaveStore(weave_transport, prefixed=False)
1771
transaction = WriteTransaction()
1775
for file_id, file_weave in self.text_weaves.items():
1776
self.pb.update('writing weave', i, len(self.text_weaves))
1777
weaves._put_weave(file_id, file_weave, transaction)
1779
self.pb.update('inventory', 0, 1)
1780
controlweaves._put_weave('inventory', self.inv_weave, transaction)
1781
self.pb.update('inventory', 1, 1)
1785
def _write_all_revs(self):
1786
"""Write all revisions out in new form."""
1787
self.bzrdir.transport.delete_tree('revision-store')
1788
self.bzrdir.transport.mkdir('revision-store')
1789
revision_transport = self.bzrdir.transport.clone('revision-store')
1791
_revision_store = TextRevisionStore(TextStore(revision_transport,
1795
transaction = WriteTransaction()
1796
for i, rev_id in enumerate(self.converted_revs):
1797
self.pb.update('write revision', i, len(self.converted_revs))
1798
_revision_store.add_revision(self.revisions[rev_id], transaction)
1802
def _load_one_rev(self, rev_id):
1803
"""Load a revision object into memory.
1805
Any parents not either loaded or abandoned get queued to be
1807
self.pb.update('loading revision',
1808
len(self.revisions),
1809
len(self.known_revisions))
1810
if not self.branch.repository.has_revision(rev_id):
1812
self.pb.note('revision {%s} not present in branch; '
1813
'will be converted as a ghost',
1815
self.absent_revisions.add(rev_id)
1817
rev = self.branch.repository._revision_store.get_revision(rev_id,
1818
self.branch.repository.get_transaction())
1819
for parent_id in rev.parent_ids:
1820
self.known_revisions.add(parent_id)
1821
self.to_read.append(parent_id)
1822
self.revisions[rev_id] = rev
1824
def _load_old_inventory(self, rev_id):
1825
assert rev_id not in self.converted_revs
1826
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
1827
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
1828
inv.revision_id = rev_id
1829
rev = self.revisions[rev_id]
1830
if rev.inventory_sha1:
1831
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
1832
'inventory sha mismatch for {%s}' % rev_id
1835
def _load_updated_inventory(self, rev_id):
1836
assert rev_id in self.converted_revs
1837
inv_xml = self.inv_weave.get_text(rev_id)
1838
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml)
1841
def _convert_one_rev(self, rev_id):
1842
"""Convert revision and all referenced objects to new format."""
1843
rev = self.revisions[rev_id]
1844
inv = self._load_old_inventory(rev_id)
1845
present_parents = [p for p in rev.parent_ids
1846
if p not in self.absent_revisions]
1847
self._convert_revision_contents(rev, inv, present_parents)
1848
self._store_new_weave(rev, inv, present_parents)
1849
self.converted_revs.add(rev_id)
1851
def _store_new_weave(self, rev, inv, present_parents):
1852
# the XML is now updated with text versions
1854
entries = inv.iter_entries()
1856
for path, ie in entries:
1857
assert getattr(ie, 'revision', None) is not None, \
1858
'no revision on {%s} in {%s}' % \
1859
(file_id, rev.revision_id)
1860
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
1861
new_inv_sha1 = sha_string(new_inv_xml)
1862
self.inv_weave.add_lines(rev.revision_id,
1864
new_inv_xml.splitlines(True))
1865
rev.inventory_sha1 = new_inv_sha1
1867
def _convert_revision_contents(self, rev, inv, present_parents):
1868
"""Convert all the files within a revision.
1870
Also upgrade the inventory to refer to the text revision ids."""
1871
rev_id = rev.revision_id
1872
mutter('converting texts of revision {%s}',
1874
parent_invs = map(self._load_updated_inventory, present_parents)
1875
entries = inv.iter_entries()
1877
for path, ie in entries:
1878
self._convert_file_version(rev, ie, parent_invs)
1880
def _convert_file_version(self, rev, ie, parent_invs):
1881
"""Convert one version of one file.
1883
The file needs to be added into the weave if it is a merge
1884
of >=2 parents or if it's changed from its parent.
1886
file_id = ie.file_id
1887
rev_id = rev.revision_id
1888
w = self.text_weaves.get(file_id)
1891
self.text_weaves[file_id] = w
1892
text_changed = False
1893
previous_entries = ie.find_previous_heads(parent_invs,
1897
for old_revision in previous_entries:
1898
# if this fails, its a ghost ?
1899
assert old_revision in self.converted_revs, \
1900
"Revision {%s} not in converted_revs" % old_revision
1901
self.snapshot_ie(previous_entries, ie, w, rev_id)
1903
assert getattr(ie, 'revision', None) is not None
1905
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
1906
# TODO: convert this logic, which is ~= snapshot to
1907
# a call to:. This needs the path figured out. rather than a work_tree
1908
# a v4 revision_tree can be given, or something that looks enough like
1909
# one to give the file content to the entry if it needs it.
1910
# and we need something that looks like a weave store for snapshot to
1912
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
1913
if len(previous_revisions) == 1:
1914
previous_ie = previous_revisions.values()[0]
1915
if ie._unchanged(previous_ie):
1916
ie.revision = previous_ie.revision
1919
text = self.branch.repository.text_store.get(ie.text_id)
1920
file_lines = text.readlines()
1921
assert sha_strings(file_lines) == ie.text_sha1
1922
assert sum(map(len, file_lines)) == ie.text_size
1923
w.add_lines(rev_id, previous_revisions, file_lines)
1924
self.text_count += 1
1926
w.add_lines(rev_id, previous_revisions, [])
1927
ie.revision = rev_id
1929
def _make_order(self):
1930
"""Return a suitable order for importing revisions.
1932
The order must be such that an revision is imported after all
1933
its (present) parents.
1935
todo = set(self.revisions.keys())
1936
done = self.absent_revisions.copy()
1939
# scan through looking for a revision whose parents
1941
for rev_id in sorted(list(todo)):
1942
rev = self.revisions[rev_id]
1943
parent_ids = set(rev.parent_ids)
1944
if parent_ids.issubset(done):
1945
# can take this one now
1946
order.append(rev_id)
1952
class ConvertBzrDir5To6(Converter):
1953
"""Converts format 5 bzr dirs to format 6."""
1955
def convert(self, to_convert, pb):
1956
"""See Converter.convert()."""
1957
self.bzrdir = to_convert
1959
self.pb.note('starting upgrade from format 5 to 6')
1960
self._convert_to_prefixed()
1961
return BzrDir.open(self.bzrdir.root_transport.base)
1963
def _convert_to_prefixed(self):
1964
from bzrlib.store import TransportStore
1965
self.bzrdir.transport.delete('branch-format')
1966
for store_name in ["weaves", "revision-store"]:
1967
self.pb.note("adding prefixes to %s" % store_name)
1968
store_transport = self.bzrdir.transport.clone(store_name)
1969
store = TransportStore(store_transport, prefixed=True)
1970
for urlfilename in store_transport.list_dir('.'):
1971
filename = urlutils.unescape(urlfilename)
1972
if (filename.endswith(".weave") or
1973
filename.endswith(".gz") or
1974
filename.endswith(".sig")):
1975
file_id = os.path.splitext(filename)[0]
1978
prefix_dir = store.hash_prefix(file_id)
1979
# FIXME keep track of the dirs made RBC 20060121
1981
store_transport.move(filename, prefix_dir + '/' + filename)
1982
except errors.NoSuchFile: # catches missing dirs strangely enough
1983
store_transport.mkdir(prefix_dir)
1984
store_transport.move(filename, prefix_dir + '/' + filename)
1985
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
1988
class ConvertBzrDir6ToMeta(Converter):
1989
"""Converts format 6 bzr dirs to metadirs."""
1991
def convert(self, to_convert, pb):
1992
"""See Converter.convert()."""
1993
from bzrlib.repofmt.weaverepo import RepositoryFormat7
1994
from bzrlib.branch import BzrBranchFormat5
1995
self.bzrdir = to_convert
1998
self.total = 20 # the steps we know about
1999
self.garbage_inventories = []
2001
self.pb.note('starting upgrade from format 6 to metadir')
2002
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
2003
# its faster to move specific files around than to open and use the apis...
2004
# first off, nuke ancestry.weave, it was never used.
2006
self.step('Removing ancestry.weave')
2007
self.bzrdir.transport.delete('ancestry.weave')
2008
except errors.NoSuchFile:
2010
# find out whats there
2011
self.step('Finding branch files')
2012
last_revision = self.bzrdir.open_branch().last_revision()
2013
bzrcontents = self.bzrdir.transport.list_dir('.')
2014
for name in bzrcontents:
2015
if name.startswith('basis-inventory.'):
2016
self.garbage_inventories.append(name)
2017
# create new directories for repository, working tree and branch
2018
self.dir_mode = self.bzrdir._control_files._dir_mode
2019
self.file_mode = self.bzrdir._control_files._file_mode
2020
repository_names = [('inventory.weave', True),
2021
('revision-store', True),
2023
self.step('Upgrading repository ')
2024
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2025
self.make_lock('repository')
2026
# we hard code the formats here because we are converting into
2027
# the meta format. The meta format upgrader can take this to a
2028
# future format within each component.
2029
self.put_format('repository', RepositoryFormat7())
2030
for entry in repository_names:
2031
self.move_entry('repository', entry)
2033
self.step('Upgrading branch ')
2034
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2035
self.make_lock('branch')
2036
self.put_format('branch', BzrBranchFormat5())
2037
branch_files = [('revision-history', True),
2038
('branch-name', True),
2040
for entry in branch_files:
2041
self.move_entry('branch', entry)
2043
checkout_files = [('pending-merges', True),
2044
('inventory', True),
2045
('stat-cache', False)]
2046
# If a mandatory checkout file is not present, the branch does not have
2047
# a functional checkout. Do not create a checkout in the converted
2049
for name, mandatory in checkout_files:
2050
if mandatory and name not in bzrcontents:
2051
has_checkout = False
2055
if not has_checkout:
2056
self.pb.note('No working tree.')
2057
# If some checkout files are there, we may as well get rid of them.
2058
for name, mandatory in checkout_files:
2059
if name in bzrcontents:
2060
self.bzrdir.transport.delete(name)
2062
from bzrlib.workingtree import WorkingTreeFormat3
2063
self.step('Upgrading working tree')
2064
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2065
self.make_lock('checkout')
2067
'checkout', WorkingTreeFormat3())
2068
self.bzrdir.transport.delete_multi(
2069
self.garbage_inventories, self.pb)
2070
for entry in checkout_files:
2071
self.move_entry('checkout', entry)
2072
if last_revision is not None:
2073
self.bzrdir._control_files.put_utf8(
2074
'checkout/last-revision', last_revision)
2075
self.bzrdir._control_files.put_utf8(
2076
'branch-format', BzrDirMetaFormat1().get_format_string())
2077
return BzrDir.open(self.bzrdir.root_transport.base)
2079
def make_lock(self, name):
2080
"""Make a lock for the new control dir name."""
2081
self.step('Make %s lock' % name)
2082
ld = lockdir.LockDir(self.bzrdir.transport,
2084
file_modebits=self.file_mode,
2085
dir_modebits=self.dir_mode)
2088
def move_entry(self, new_dir, entry):
2089
"""Move then entry name into new_dir."""
2091
mandatory = entry[1]
2092
self.step('Moving %s' % name)
2094
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2095
except errors.NoSuchFile:
2099
def put_format(self, dirname, format):
2100
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
2103
class ConvertMetaToMeta(Converter):
2104
"""Converts the components of metadirs."""
2106
def __init__(self, target_format):
2107
"""Create a metadir to metadir converter.
2109
:param target_format: The final metadir format that is desired.
2111
self.target_format = target_format
2113
def convert(self, to_convert, pb):
2114
"""See Converter.convert()."""
2115
self.bzrdir = to_convert
2119
self.step('checking repository format')
2121
repo = self.bzrdir.open_repository()
2122
except errors.NoRepositoryPresent:
2125
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2126
from bzrlib.repository import CopyConverter
2127
self.pb.note('starting repository conversion')
2128
converter = CopyConverter(self.target_format.repository_format)
2129
converter.convert(repo, pb)
2131
branch = self.bzrdir.open_branch()
2132
except errors.NotBranchError:
2135
# TODO: conversions of Branch and Tree should be done by
2136
# InterXFormat lookups
2137
# Avoid circular imports
2138
from bzrlib import branch as _mod_branch
2139
if (branch._format.__class__ is _mod_branch.BzrBranchFormat5 and
2140
self.target_format.get_branch_format().__class__ is
2141
_mod_branch.BzrBranchFormat6):
2142
branch_converter = _mod_branch.Converter5to6()
2143
branch_converter.convert(branch)
2145
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2146
except (errors.NoWorkingTree, errors.NotLocalUrl):
2149
# TODO: conversions of Branch and Tree should be done by
2150
# InterXFormat lookups
2151
if (isinstance(tree, workingtree.WorkingTree3) and
2152
not isinstance(tree, workingtree_4.WorkingTree4) and
2153
isinstance(self.target_format.workingtree_format,
2154
workingtree_4.WorkingTreeFormat4)):
2155
workingtree_4.Converter3to4().convert(tree)
2159
class BzrDirFormatInfo(object):
2161
def __init__(self, native, deprecated, hidden):
2162
self.deprecated = deprecated
2163
self.native = native
2164
self.hidden = hidden
2167
class BzrDirFormatRegistry(registry.Registry):
2168
"""Registry of user-selectable BzrDir subformats.
2170
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2171
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2174
def register_metadir(self, key,
2175
repository_format, help, native=True, deprecated=False,
2179
"""Register a metadir subformat.
2181
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2182
by the Repository format.
2184
:param repository_format: The fully-qualified repository format class
2186
:param branch_format: Fully-qualified branch format class name as
2188
:param tree_format: Fully-qualified tree format class name as
2191
# This should be expanded to support setting WorkingTree and Branch
2192
# formats, once BzrDirMetaFormat1 supports that.
2193
def _load(full_name):
2194
mod_name, factory_name = full_name.rsplit('.', 1)
2196
mod = __import__(mod_name, globals(), locals(),
2198
except ImportError, e:
2199
raise ImportError('failed to load %s: %s' % (full_name, e))
2201
factory = getattr(mod, factory_name)
2202
except AttributeError:
2203
raise AttributeError('no factory %s in module %r'
2208
bd = BzrDirMetaFormat1()
2209
if branch_format is not None:
2210
bd.set_branch_format(_load(branch_format))
2211
if tree_format is not None:
2212
bd.workingtree_format = _load(tree_format)
2213
if repository_format is not None:
2214
bd.repository_format = _load(repository_format)
2216
self.register(key, helper, help, native, deprecated, hidden)
2218
def register(self, key, factory, help, native=True, deprecated=False,
2220
"""Register a BzrDirFormat factory.
2222
The factory must be a callable that takes one parameter: the key.
2223
It must produce an instance of the BzrDirFormat when called.
2225
This function mainly exists to prevent the info object from being
2228
registry.Registry.register(self, key, factory, help,
2229
BzrDirFormatInfo(native, deprecated, hidden))
2231
def register_lazy(self, key, module_name, member_name, help, native=True,
2232
deprecated=False, hidden=False):
2233
registry.Registry.register_lazy(self, key, module_name, member_name,
2234
help, BzrDirFormatInfo(native, deprecated, hidden))
2236
def set_default(self, key):
2237
"""Set the 'default' key to be a clone of the supplied key.
2239
This method must be called once and only once.
2241
registry.Registry.register(self, 'default', self.get(key),
2242
self.get_help(key), info=self.get_info(key))
2244
def set_default_repository(self, key):
2245
"""Set the FormatRegistry default and Repository default.
2247
This is a transitional method while Repository.set_default_format
2250
if 'default' in self:
2251
self.remove('default')
2252
self.set_default(key)
2253
format = self.get('default')()
2254
assert isinstance(format, BzrDirMetaFormat1)
2256
def make_bzrdir(self, key):
2257
return self.get(key)()
2259
def help_topic(self, topic):
2260
output = textwrap.dedent("""\
2261
Bazaar directory formats
2262
------------------------
2264
These formats can be used for creating branches, working trees, and
2268
default_help = self.get_help('default')
2270
for key in self.keys():
2271
if key == 'default':
2273
help = self.get_help(key)
2274
if help == default_help:
2275
default_realkey = key
2277
help_pairs.append((key, help))
2279
def wrapped(key, help, info):
2281
help = '(native) ' + help
2282
return ' %s:\n%s\n\n' % (key,
2283
textwrap.fill(help, initial_indent=' ',
2284
subsequent_indent=' '))
2285
output += wrapped('%s/default' % default_realkey, default_help,
2286
self.get_info('default'))
2287
deprecated_pairs = []
2288
for key, help in help_pairs:
2289
info = self.get_info(key)
2292
elif info.deprecated:
2293
deprecated_pairs.append((key, help))
2295
output += wrapped(key, help, info)
2296
if len(deprecated_pairs) > 0:
2297
output += "Deprecated formats\n------------------\n\n"
2298
for key, help in deprecated_pairs:
2299
info = self.get_info(key)
2300
output += wrapped(key, help, info)
2305
format_registry = BzrDirFormatRegistry()
2306
format_registry.register('weave', BzrDirFormat6,
2307
'Pre-0.8 format. Slower than knit and does not'
2308
' support checkouts or shared repositories.',
2310
format_registry.register_metadir('knit',
2311
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2312
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2313
branch_format='bzrlib.branch.BzrBranchFormat5',
2314
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2315
format_registry.register_metadir('metaweave',
2316
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2317
'Transitional format in 0.8. Slower than knit.',
2318
branch_format='bzrlib.branch.BzrBranchFormat5',
2319
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2321
format_registry.register_metadir('dirstate',
2322
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2323
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2324
'above when accessed over the network.',
2325
branch_format='bzrlib.branch.BzrBranchFormat5',
2326
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2327
# directly from workingtree_4 triggers a circular import.
2328
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2330
format_registry.register_metadir('dirstate-tags',
2331
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2332
help='New in 0.15: Fast local operations and improved scaling for '
2333
'network operations. Additionally adds support for tags.'
2334
' Incompatible with bzr < 0.15.',
2335
branch_format='bzrlib.branch.BzrBranchFormat6',
2336
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2338
format_registry.register_metadir('dirstate-with-subtree',
2339
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2340
help='New in 0.15: Fast local operations and improved scaling for '
2341
'network operations. Additionally adds support for versioning nested '
2342
'bzr branches. Incompatible with bzr < 0.15.',
2343
branch_format='bzrlib.branch.BzrBranchFormat6',
2344
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2347
format_registry.set_default('dirstate')
added
removed
bzrlib/bzrdir.py
