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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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"""BzrDir logic. The BzrDir is the basic control directory used by bzr.
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At format 7 this was split out into Branch, Repository and Checkout control
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# 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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repository as _mod_repository,
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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
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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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"""Check whether format is a supported format.
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If allow_unsupported is True, this is a no-op.
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if not allow_unsupported and not format.is_supported():
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# see open_downlevel to open legacy branches.
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raise errors.UnsupportedFormatError(format=format)
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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 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
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a format string, and vice versa.
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If workingtree_format is None, the transport is returned with no
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checking. if it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_workingtree_transport)
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def __init__(self, _transport, _format):
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"""Initialize a Bzr control dir object.
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Only really common logic should reside here, concrete classes should be
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made with varying behaviours.
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:param _format: the format that is creating this BzrDir instance.
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:param _transport: the transport this dir is based at.
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self._format = _format
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self.transport = _transport.clone('.bzr')
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self.root_transport = _transport
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def is_control_filename(self, filename):
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"""True if filename is the name of a path which is reserved for bzrdir's.
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:param filename: A filename within the root transport of this bzrdir.
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This is true IF and ONLY IF the filename is part of the namespace reserved
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for bzr control dirs. Currently this is the '.bzr' directory in the root
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of the root_transport. it is expected that plugins will need to extend
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this in the future - for instance to make bzr talk with svn working
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# this might be better on the BzrDirFormat class because it refers to
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# all the possible bzrdir disk formats.
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# This method is tested via the workingtree is_control_filename tests-
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# it was extracted from WorkingTree.is_control_filename. If the methods
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# contract is extended beyond the current trivial implementation please
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# add new tests for it to the appropriate place.
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return filename == '.bzr' or filename.startswith('.bzr/')
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def needs_format_conversion(self, format=None):
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"""Return true if this bzrdir needs convert_format run on it.
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For instance, if the repository format is out of date but the
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branch and working tree are not, this should return True.
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:param format: Optional parameter indicating a specific desired
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format we plan to arrive at.
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raise NotImplementedError(self.needs_format_conversion)
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def open_unsupported(base):
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"""Open a branch which is not supported."""
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return BzrDir.open(base, _unsupported=True)
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def open(base, _unsupported=False):
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"""Open an existing bzrdir, rooted at 'base' (url)
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_unsupported is a private parameter to the BzrDir class.
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t = get_transport(base)
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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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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_repository(self, _unsupported=False):
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"""Open the repository object at this BzrDir if one is present.
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This will not follow the Branch object pointer - its strictly a direct
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open facility. Most client code should use open_branch().repository to
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_unsupported is a private parameter, not part of the api.
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TODO: static convenience version of this?
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raise NotImplementedError(self.open_repository)
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def open_workingtree(self, _unsupported=False):
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"""Open the workingtree object at this BzrDir if one is present.
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TODO: static convenience version of this?
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raise NotImplementedError(self.open_workingtree)
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def has_branch(self):
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"""Tell if this bzrdir contains a branch.
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Note: if you're going to open the branch, you should just go ahead
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and try, and not ask permission first. (This method just opens the
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branch and discards it, and that's somewhat expensive.)
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except errors.NotBranchError:
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def has_workingtree(self):
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"""Tell if this bzrdir contains a working tree.
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This will still raise an exception if the bzrdir has a workingtree that
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is remote & inaccessible.
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Note: if you're going to open the working tree, you should just go ahead
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and try, and not ask permission first. (This method just opens the
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workingtree and discards it, and that's somewhat expensive.)
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self.open_workingtree()
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except errors.NoWorkingTree:
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def cloning_metadir(self, basis=None):
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"""Produce a metadir suitable for cloning with"""
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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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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
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# case that the newly sprouted branch is a remote one
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if result_repo is None or result_repo.make_working_trees():
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wt = result.create_workingtree()
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if wt.inventory.root 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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class BzrDirPreSplitOut(BzrDir):
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"""A common class for the all-in-one formats."""
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def __init__(self, _transport, _format):
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"""See BzrDir.__init__."""
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super(BzrDirPreSplitOut, self).__init__(_transport, _format)
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assert self._format._lock_class == lockable_files.TransportLock
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assert self._format._lock_file_name == 'branch-lock'
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self._control_files = lockable_files.LockableFiles(
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self.get_branch_transport(None),
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self._format._lock_file_name,
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self._format._lock_class)
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def break_lock(self):
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"""Pre-splitout bzrdirs do not suffer from stale locks."""
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raise NotImplementedError(self.break_lock)
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def clone(self, url, revision_id=None, basis=None, force_new_repo=False):
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"""See BzrDir.clone()."""
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from bzrlib.workingtree import WorkingTreeFormat2
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result = self._format._initialize_for_clone(url)
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basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
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self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
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from_branch = self.open_branch()
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from_branch.clone(result, revision_id=revision_id)
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self.open_workingtree().clone(result, basis=basis_tree)
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except errors.NotLocalUrl:
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# make a new one, this format always has to have one.
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WorkingTreeFormat2().initialize(result)
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except errors.NotLocalUrl:
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# but we cannot do it for remote trees.
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to_branch = result.open_branch()
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WorkingTreeFormat2().stub_initialize_remote(to_branch.control_files)
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def create_branch(self):
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"""See BzrDir.create_branch."""
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return self.open_branch()
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def create_repository(self, shared=False):
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"""See BzrDir.create_repository."""
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raise errors.IncompatibleFormat('shared repository', self._format)
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return self.open_repository()
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def create_workingtree(self, revision_id=None):
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"""See BzrDir.create_workingtree."""
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# this looks buggy but is not -really-
753
# clone and sprout will have set the revision_id
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# and that will have set it for us, its only
755
# specific uses of create_workingtree in isolation
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# that can do wonky stuff here, and that only
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# happens for creating checkouts, which cannot be
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# done on this format anyway. So - acceptable wart.
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result = self.open_workingtree()
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if revision_id is not None:
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if revision_id == _mod_revision.NULL_REVISION:
762
result.set_parent_ids([])
764
result.set_parent_ids([revision_id])
767
def destroy_workingtree(self):
768
"""See BzrDir.destroy_workingtree."""
769
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
771
def destroy_workingtree_metadata(self):
772
"""See BzrDir.destroy_workingtree_metadata."""
773
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
776
def get_branch_transport(self, branch_format):
777
"""See BzrDir.get_branch_transport()."""
778
if branch_format is None:
779
return self.transport
781
branch_format.get_format_string()
782
except NotImplementedError:
783
return self.transport
784
raise errors.IncompatibleFormat(branch_format, self._format)
786
def get_repository_transport(self, repository_format):
787
"""See BzrDir.get_repository_transport()."""
788
if repository_format is None:
789
return self.transport
791
repository_format.get_format_string()
792
except NotImplementedError:
793
return self.transport
794
raise errors.IncompatibleFormat(repository_format, self._format)
796
def get_workingtree_transport(self, workingtree_format):
797
"""See BzrDir.get_workingtree_transport()."""
798
if workingtree_format is None:
799
return self.transport
801
workingtree_format.get_format_string()
802
except NotImplementedError:
803
return self.transport
804
raise errors.IncompatibleFormat(workingtree_format, self._format)
806
def needs_format_conversion(self, format=None):
807
"""See BzrDir.needs_format_conversion()."""
808
# if the format is not the same as the system default,
809
# an upgrade is needed.
811
format = BzrDirFormat.get_default_format()
812
return not isinstance(self._format, format.__class__)
814
def open_branch(self, unsupported=False):
815
"""See BzrDir.open_branch."""
816
from bzrlib.branch import BzrBranchFormat4
817
format = BzrBranchFormat4()
818
self._check_supported(format, unsupported)
819
return format.open(self, _found=True)
821
def sprout(self, url, revision_id=None, basis=None, force_new_repo=False):
822
"""See BzrDir.sprout()."""
823
from bzrlib.workingtree import WorkingTreeFormat2
825
result = self._format._initialize_for_clone(url)
826
basis_repo, basis_branch, basis_tree = self._get_basis_components(basis)
828
self.open_repository().clone(result, revision_id=revision_id, basis=basis_repo)
829
except errors.NoRepositoryPresent:
832
self.open_branch().sprout(result, revision_id=revision_id)
833
except errors.NotBranchError:
835
# we always want a working tree
836
WorkingTreeFormat2().initialize(result)
840
class BzrDir4(BzrDirPreSplitOut):
841
"""A .bzr version 4 control object.
843
This is a deprecated format and may be removed after sept 2006.
846
def create_repository(self, shared=False):
847
"""See BzrDir.create_repository."""
848
return self._format.repository_format.initialize(self, shared)
850
def needs_format_conversion(self, format=None):
851
"""Format 4 dirs are always in need of conversion."""
854
def open_repository(self):
855
"""See BzrDir.open_repository."""
856
from bzrlib.repository import RepositoryFormat4
857
return RepositoryFormat4().open(self, _found=True)
860
class BzrDir5(BzrDirPreSplitOut):
861
"""A .bzr version 5 control object.
863
This is a deprecated format and may be removed after sept 2006.
866
def open_repository(self):
867
"""See BzrDir.open_repository."""
868
from bzrlib.repository import RepositoryFormat5
869
return RepositoryFormat5().open(self, _found=True)
871
def open_workingtree(self, _unsupported=False):
872
"""See BzrDir.create_workingtree."""
873
from bzrlib.workingtree import WorkingTreeFormat2
874
return WorkingTreeFormat2().open(self, _found=True)
877
class BzrDir6(BzrDirPreSplitOut):
878
"""A .bzr version 6 control object.
880
This is a deprecated format and may be removed after sept 2006.
883
def open_repository(self):
884
"""See BzrDir.open_repository."""
885
from bzrlib.repository import RepositoryFormat6
886
return RepositoryFormat6().open(self, _found=True)
888
def open_workingtree(self, _unsupported=False):
889
"""See BzrDir.create_workingtree."""
890
from bzrlib.workingtree import WorkingTreeFormat2
891
return WorkingTreeFormat2().open(self, _found=True)
894
class BzrDirMeta1(BzrDir):
895
"""A .bzr meta version 1 control object.
897
This is the first control object where the
898
individual aspects are really split out: there are separate repository,
899
workingtree and branch subdirectories and any subset of the three can be
900
present within a BzrDir.
903
def can_convert_format(self):
904
"""See BzrDir.can_convert_format()."""
907
def create_branch(self):
908
"""See BzrDir.create_branch."""
909
return self._format.branch_format.initialize(self)
911
def create_repository(self, shared=False):
912
"""See BzrDir.create_repository."""
913
return self._format.repository_format.initialize(self, shared)
915
def create_workingtree(self, revision_id=None):
916
"""See BzrDir.create_workingtree."""
917
from bzrlib.workingtree import WorkingTreeFormat
918
return WorkingTreeFormat.get_default_format().initialize(self, revision_id)
920
def destroy_workingtree(self):
921
"""See BzrDir.destroy_workingtree."""
922
wt = self.open_workingtree()
923
repository = wt.branch.repository
924
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
925
wt.revert([], old_tree=empty)
926
self.destroy_workingtree_metadata()
928
def destroy_workingtree_metadata(self):
929
self.transport.delete_tree('checkout')
931
def _get_mkdir_mode(self):
932
"""Figure out the mode to use when creating a bzrdir subdir."""
933
temp_control = lockable_files.LockableFiles(self.transport, '',
934
lockable_files.TransportLock)
935
return temp_control._dir_mode
937
def get_branch_transport(self, branch_format):
938
"""See BzrDir.get_branch_transport()."""
939
if branch_format is None:
940
return self.transport.clone('branch')
942
branch_format.get_format_string()
943
except NotImplementedError:
944
raise errors.IncompatibleFormat(branch_format, self._format)
946
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
947
except errors.FileExists:
949
return self.transport.clone('branch')
951
def get_repository_transport(self, repository_format):
952
"""See BzrDir.get_repository_transport()."""
953
if repository_format is None:
954
return self.transport.clone('repository')
956
repository_format.get_format_string()
957
except NotImplementedError:
958
raise errors.IncompatibleFormat(repository_format, self._format)
960
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
961
except errors.FileExists:
963
return self.transport.clone('repository')
965
def get_workingtree_transport(self, workingtree_format):
966
"""See BzrDir.get_workingtree_transport()."""
967
if workingtree_format is None:
968
return self.transport.clone('checkout')
970
workingtree_format.get_format_string()
971
except NotImplementedError:
972
raise errors.IncompatibleFormat(workingtree_format, self._format)
974
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
975
except errors.FileExists:
977
return self.transport.clone('checkout')
979
def needs_format_conversion(self, format=None):
980
"""See BzrDir.needs_format_conversion()."""
982
format = BzrDirFormat.get_default_format()
983
if not isinstance(self._format, format.__class__):
984
# it is not a meta dir format, conversion is needed.
986
# we might want to push this down to the repository?
988
if not isinstance(self.open_repository()._format,
989
format.repository_format.__class__):
990
# the repository needs an upgrade.
992
except errors.NoRepositoryPresent:
994
# currently there are no other possible conversions for meta1 formats.
997
def open_branch(self, unsupported=False):
998
"""See BzrDir.open_branch."""
999
from bzrlib.branch import BranchFormat
1000
format = BranchFormat.find_format(self)
1001
self._check_supported(format, unsupported)
1002
return format.open(self, _found=True)
1004
def open_repository(self, unsupported=False):
1005
"""See BzrDir.open_repository."""
1006
from bzrlib.repository import RepositoryFormat
1007
format = RepositoryFormat.find_format(self)
1008
self._check_supported(format, unsupported)
1009
return format.open(self, _found=True)
1011
def open_workingtree(self, unsupported=False):
1012
"""See BzrDir.open_workingtree."""
1013
from bzrlib.workingtree import WorkingTreeFormat
1014
format = WorkingTreeFormat.find_format(self)
1015
self._check_supported(format, unsupported)
1016
return format.open(self, _found=True)
1019
class BzrDirFormat(object):
1020
"""An encapsulation of the initialization and open routines for a format.
1022
Formats provide three things:
1023
* An initialization routine,
1027
Formats are placed in an dict by their format string for reference
1028
during bzrdir opening. These should be subclasses of BzrDirFormat
1031
Once a format is deprecated, just deprecate the initialize and open
1032
methods on the format class. Do not deprecate the object, as the
1033
object will be created every system load.
1036
_default_format = None
1037
"""The default format used for new .bzr dirs."""
1040
"""The known formats."""
1042
_control_formats = []
1043
"""The registered control formats - .bzr, ....
1045
This is a list of BzrDirFormat objects.
1048
_lock_file_name = 'branch-lock'
1050
# _lock_class must be set in subclasses to the lock type, typ.
1051
# TransportLock or LockDir
1054
def find_format(klass, transport):
1055
"""Return the format present at transport."""
1056
for format in klass._control_formats:
1058
return format.probe_transport(transport)
1059
except errors.NotBranchError:
1060
# this format does not find a control dir here.
1062
raise errors.NotBranchError(path=transport.base)
1065
def probe_transport(klass, transport):
1066
"""Return the .bzrdir style transport present at URL."""
1068
format_string = transport.get(".bzr/branch-format").read()
1069
except errors.NoSuchFile:
1070
raise errors.NotBranchError(path=transport.base)
1073
return klass._formats[format_string]
1075
raise errors.UnknownFormatError(format=format_string)
1078
def get_default_format(klass):
1079
"""Return the current default format."""
1080
return klass._default_format
1082
def get_format_string(self):
1083
"""Return the ASCII format string that identifies this format."""
1084
raise NotImplementedError(self.get_format_string)
1086
def get_format_description(self):
1087
"""Return the short description for this format."""
1088
raise NotImplementedError(self.get_format_description)
1090
def get_converter(self, format=None):
1091
"""Return the converter to use to convert bzrdirs needing converts.
1093
This returns a bzrlib.bzrdir.Converter object.
1095
This should return the best upgrader to step this format towards the
1096
current default format. In the case of plugins we can/should provide
1097
some means for them to extend the range of returnable converters.
1099
:param format: Optional format to override the default format of the
1102
raise NotImplementedError(self.get_converter)
1104
def initialize(self, url):
1105
"""Create a bzr control dir at this url and return an opened copy.
1107
Subclasses should typically override initialize_on_transport
1108
instead of this method.
1110
return self.initialize_on_transport(get_transport(url))
1112
def initialize_on_transport(self, transport):
1113
"""Initialize a new bzrdir in the base directory of a Transport."""
1114
# Since we don't have a .bzr directory, inherit the
1115
# mode from the root directory
1116
temp_control = lockable_files.LockableFiles(transport,
1117
'', lockable_files.TransportLock)
1118
temp_control._transport.mkdir('.bzr',
1119
# FIXME: RBC 20060121 don't peek under
1121
mode=temp_control._dir_mode)
1122
file_mode = temp_control._file_mode
1124
mutter('created control directory in ' + transport.base)
1125
control = transport.clone('.bzr')
1126
utf8_files = [('README',
1127
"This is a Bazaar-NG control directory.\n"
1128
"Do not change any files in this directory.\n"),
1129
('branch-format', self.get_format_string()),
1131
# NB: no need to escape relative paths that are url safe.
1132
control_files = lockable_files.LockableFiles(control,
1133
self._lock_file_name, self._lock_class)
1134
control_files.create_lock()
1135
control_files.lock_write()
1137
for file, content in utf8_files:
1138
control_files.put_utf8(file, content)
1140
control_files.unlock()
1141
return self.open(transport, _found=True)
1143
def is_supported(self):
1144
"""Is this format supported?
1146
Supported formats must be initializable and openable.
1147
Unsupported formats may not support initialization or committing or
1148
some other features depending on the reason for not being supported.
1152
def same_model(self, target_format):
1153
return (self.repository_format.rich_root_data ==
1154
target_format.rich_root_data)
1157
def known_formats(klass):
1158
"""Return all the known formats.
1160
Concrete formats should override _known_formats.
1162
# There is double indirection here to make sure that control
1163
# formats used by more than one dir format will only be probed
1164
# once. This can otherwise be quite expensive for remote connections.
1166
for format in klass._control_formats:
1167
result.update(format._known_formats())
1171
def _known_formats(klass):
1172
"""Return the known format instances for this control format."""
1173
return set(klass._formats.values())
1175
def open(self, transport, _found=False):
1176
"""Return an instance of this format for the dir transport points at.
1178
_found is a private parameter, do not use it.
1181
found_format = BzrDirFormat.find_format(transport)
1182
if not isinstance(found_format, self.__class__):
1183
raise AssertionError("%s was asked to open %s, but it seems to need "
1185
% (self, transport, found_format))
1186
return self._open(transport)
1188
def _open(self, transport):
1189
"""Template method helper for opening BzrDirectories.
1191
This performs the actual open and any additional logic or parameter
1194
raise NotImplementedError(self._open)
1197
def register_format(klass, format):
1198
klass._formats[format.get_format_string()] = format
1201
def register_control_format(klass, format):
1202
"""Register a format that does not use '.bzrdir' for its control dir.
1204
TODO: This should be pulled up into a 'ControlDirFormat' base class
1205
which BzrDirFormat can inherit from, and renamed to register_format
1206
there. It has been done without that for now for simplicity of
1209
klass._control_formats.append(format)
1212
@symbol_versioning.deprecated_method(symbol_versioning.zero_fourteen)
1213
def set_default_format(klass, format):
1214
klass._set_default_format(format)
1217
def _set_default_format(klass, format):
1218
"""Set default format (for testing behavior of defaults only)"""
1219
klass._default_format = format
1222
return self.get_format_string()[:-1]
1225
def unregister_format(klass, format):
1226
assert klass._formats[format.get_format_string()] is format
1227
del klass._formats[format.get_format_string()]
1230
def unregister_control_format(klass, format):
1231
klass._control_formats.remove(format)
1234
# register BzrDirFormat as a control format
1235
BzrDirFormat.register_control_format(BzrDirFormat)
1238
class BzrDirFormat4(BzrDirFormat):
1239
"""Bzr dir format 4.
1241
This format is a combined format for working tree, branch and repository.
1243
- Format 1 working trees [always]
1244
- Format 4 branches [always]
1245
- Format 4 repositories [always]
1247
This format is deprecated: it indexes texts using a text it which is
1248
removed in format 5; write support for this format has been removed.
1251
_lock_class = lockable_files.TransportLock
1253
def get_format_string(self):
1254
"""See BzrDirFormat.get_format_string()."""
1255
return "Bazaar-NG branch, format 0.0.4\n"
1257
def get_format_description(self):
1258
"""See BzrDirFormat.get_format_description()."""
1259
return "All-in-one format 4"
1261
def get_converter(self, format=None):
1262
"""See BzrDirFormat.get_converter()."""
1263
# there is one and only one upgrade path here.
1264
return ConvertBzrDir4To5()
1266
def initialize_on_transport(self, transport):
1267
"""Format 4 branches cannot be created."""
1268
raise errors.UninitializableFormat(self)
1270
def is_supported(self):
1271
"""Format 4 is not supported.
1273
It is not supported because the model changed from 4 to 5 and the
1274
conversion logic is expensive - so doing it on the fly was not
1279
def _open(self, transport):
1280
"""See BzrDirFormat._open."""
1281
return BzrDir4(transport, self)
1283
def __return_repository_format(self):
1284
"""Circular import protection."""
1285
from bzrlib.repository import RepositoryFormat4
1286
return RepositoryFormat4()
1287
repository_format = property(__return_repository_format)
1290
class BzrDirFormat5(BzrDirFormat):
1291
"""Bzr control format 5.
1293
This format is a combined format for working tree, branch and repository.
1295
- Format 2 working trees [always]
1296
- Format 4 branches [always]
1297
- Format 5 repositories [always]
1298
Unhashed stores in the repository.
1301
_lock_class = lockable_files.TransportLock
1303
def get_format_string(self):
1304
"""See BzrDirFormat.get_format_string()."""
1305
return "Bazaar-NG branch, format 5\n"
1307
def get_format_description(self):
1308
"""See BzrDirFormat.get_format_description()."""
1309
return "All-in-one format 5"
1311
def get_converter(self, format=None):
1312
"""See BzrDirFormat.get_converter()."""
1313
# there is one and only one upgrade path here.
1314
return ConvertBzrDir5To6()
1316
def _initialize_for_clone(self, url):
1317
return self.initialize_on_transport(get_transport(url), _cloning=True)
1319
def initialize_on_transport(self, transport, _cloning=False):
1320
"""Format 5 dirs always have working tree, branch and repository.
1322
Except when they are being cloned.
1324
from bzrlib.branch import BzrBranchFormat4
1325
from bzrlib.repository import RepositoryFormat5
1326
from bzrlib.workingtree import WorkingTreeFormat2
1327
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1328
RepositoryFormat5().initialize(result, _internal=True)
1330
branch = BzrBranchFormat4().initialize(result)
1332
WorkingTreeFormat2().initialize(result)
1333
except errors.NotLocalUrl:
1334
# Even though we can't access the working tree, we need to
1335
# create its control files.
1336
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1339
def _open(self, transport):
1340
"""See BzrDirFormat._open."""
1341
return BzrDir5(transport, self)
1343
def __return_repository_format(self):
1344
"""Circular import protection."""
1345
from bzrlib.repository import RepositoryFormat5
1346
return RepositoryFormat5()
1347
repository_format = property(__return_repository_format)
1350
class BzrDirFormat6(BzrDirFormat):
1351
"""Bzr control format 6.
1353
This format is a combined format for working tree, branch and repository.
1355
- Format 2 working trees [always]
1356
- Format 4 branches [always]
1357
- Format 6 repositories [always]
1360
_lock_class = lockable_files.TransportLock
1362
def get_format_string(self):
1363
"""See BzrDirFormat.get_format_string()."""
1364
return "Bazaar-NG branch, format 6\n"
1366
def get_format_description(self):
1367
"""See BzrDirFormat.get_format_description()."""
1368
return "All-in-one format 6"
1370
def get_converter(self, format=None):
1371
"""See BzrDirFormat.get_converter()."""
1372
# there is one and only one upgrade path here.
1373
return ConvertBzrDir6ToMeta()
1375
def _initialize_for_clone(self, url):
1376
return self.initialize_on_transport(get_transport(url), _cloning=True)
1378
def initialize_on_transport(self, transport, _cloning=False):
1379
"""Format 6 dirs always have working tree, branch and repository.
1381
Except when they are being cloned.
1383
from bzrlib.branch import BzrBranchFormat4
1384
from bzrlib.repository import RepositoryFormat6
1385
from bzrlib.workingtree import WorkingTreeFormat2
1386
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1387
RepositoryFormat6().initialize(result, _internal=True)
1389
branch = BzrBranchFormat4().initialize(result)
1391
WorkingTreeFormat2().initialize(result)
1392
except errors.NotLocalUrl:
1393
# Even though we can't access the working tree, we need to
1394
# create its control files.
1395
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1398
def _open(self, transport):
1399
"""See BzrDirFormat._open."""
1400
return BzrDir6(transport, self)
1402
def __return_repository_format(self):
1403
"""Circular import protection."""
1404
from bzrlib.repository import RepositoryFormat6
1405
return RepositoryFormat6()
1406
repository_format = property(__return_repository_format)
1409
class BzrDirMetaFormat1(BzrDirFormat):
1410
"""Bzr meta control format 1
1412
This is the first format with split out working tree, branch and repository
1415
- Format 3 working trees [optional]
1416
- Format 5 branches [optional]
1417
- Format 7 repositories [optional]
1420
_lock_class = lockdir.LockDir
1423
self._branch_format = None
1425
def _get_branch_format(self):
1426
if self._branch_format is None:
1427
from bzrlib.branch import BranchFormat
1428
self._branch_format = BranchFormat.get_default_format()
1429
return self._branch_format
1431
def _set_branch_format(self, format):
1432
self._branch_format = format
1434
branch_format = property(_get_branch_format, _set_branch_format)
1436
def get_converter(self, format=None):
1437
"""See BzrDirFormat.get_converter()."""
1439
format = BzrDirFormat.get_default_format()
1440
if not isinstance(self, format.__class__):
1441
# converting away from metadir is not implemented
1442
raise NotImplementedError(self.get_converter)
1443
return ConvertMetaToMeta(format)
1445
def get_format_string(self):
1446
"""See BzrDirFormat.get_format_string()."""
1447
return "Bazaar-NG meta directory, format 1\n"
1449
def get_format_description(self):
1450
"""See BzrDirFormat.get_format_description()."""
1451
return "Meta directory format 1"
1453
def _open(self, transport):
1454
"""See BzrDirFormat._open."""
1455
return BzrDirMeta1(transport, self)
1457
def __return_repository_format(self):
1458
"""Circular import protection."""
1459
if getattr(self, '_repository_format', None):
1460
return self._repository_format
1461
from bzrlib.repository import RepositoryFormat
1462
return RepositoryFormat.get_default_format()
1464
def __set_repository_format(self, value):
1465
"""Allow changint the repository format for metadir formats."""
1466
self._repository_format = value
1468
repository_format = property(__return_repository_format, __set_repository_format)
1471
BzrDirFormat.register_format(BzrDirFormat4())
1472
BzrDirFormat.register_format(BzrDirFormat5())
1473
BzrDirFormat.register_format(BzrDirFormat6())
1474
__default_format = BzrDirMetaFormat1()
1475
BzrDirFormat.register_format(__default_format)
1476
BzrDirFormat._default_format = __default_format
1479
class BzrDirTestProviderAdapter(object):
1480
"""A tool to generate a suite testing multiple bzrdir formats at once.
1482
This is done by copying the test once for each transport and injecting
1483
the transport_server, transport_readonly_server, and bzrdir_format
1484
classes into each copy. Each copy is also given a new id() to make it
1488
def __init__(self, transport_server, transport_readonly_server, formats):
1489
self._transport_server = transport_server
1490
self._transport_readonly_server = transport_readonly_server
1491
self._formats = formats
1493
def adapt(self, test):
1494
result = unittest.TestSuite()
1495
for format in self._formats:
1496
new_test = deepcopy(test)
1497
new_test.transport_server = self._transport_server
1498
new_test.transport_readonly_server = self._transport_readonly_server
1499
new_test.bzrdir_format = format
1500
def make_new_test_id():
1501
new_id = "%s(%s)" % (new_test.id(), format.__class__.__name__)
1502
return lambda: new_id
1503
new_test.id = make_new_test_id()
1504
result.addTest(new_test)
1508
class Converter(object):
1509
"""Converts a disk format object from one format to another."""
1511
def convert(self, to_convert, pb):
1512
"""Perform the conversion of to_convert, giving feedback via pb.
1514
:param to_convert: The disk object to convert.
1515
:param pb: a progress bar to use for progress information.
1518
def step(self, message):
1519
"""Update the pb by a step."""
1521
self.pb.update(message, self.count, self.total)
1524
class ConvertBzrDir4To5(Converter):
1525
"""Converts format 4 bzr dirs to format 5."""
1528
super(ConvertBzrDir4To5, self).__init__()
1529
self.converted_revs = set()
1530
self.absent_revisions = set()
1534
def convert(self, to_convert, pb):
1535
"""See Converter.convert()."""
1536
self.bzrdir = to_convert
1538
self.pb.note('starting upgrade from format 4 to 5')
1539
if isinstance(self.bzrdir.transport, LocalTransport):
1540
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1541
self._convert_to_weaves()
1542
return BzrDir.open(self.bzrdir.root_transport.base)
1544
def _convert_to_weaves(self):
1545
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1548
stat = self.bzrdir.transport.stat('weaves')
1549
if not S_ISDIR(stat.st_mode):
1550
self.bzrdir.transport.delete('weaves')
1551
self.bzrdir.transport.mkdir('weaves')
1552
except errors.NoSuchFile:
1553
self.bzrdir.transport.mkdir('weaves')
1554
# deliberately not a WeaveFile as we want to build it up slowly.
1555
self.inv_weave = Weave('inventory')
1556
# holds in-memory weaves for all files
1557
self.text_weaves = {}
1558
self.bzrdir.transport.delete('branch-format')
1559
self.branch = self.bzrdir.open_branch()
1560
self._convert_working_inv()
1561
rev_history = self.branch.revision_history()
1562
# to_read is a stack holding the revisions we still need to process;
1563
# appending to it adds new highest-priority revisions
1564
self.known_revisions = set(rev_history)
1565
self.to_read = rev_history[-1:]
1567
rev_id = self.to_read.pop()
1568
if (rev_id not in self.revisions
1569
and rev_id not in self.absent_revisions):
1570
self._load_one_rev(rev_id)
1572
to_import = self._make_order()
1573
for i, rev_id in enumerate(to_import):
1574
self.pb.update('converting revision', i, len(to_import))
1575
self._convert_one_rev(rev_id)
1577
self._write_all_weaves()
1578
self._write_all_revs()
1579
self.pb.note('upgraded to weaves:')
1580
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1581
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
1582
self.pb.note(' %6d texts', self.text_count)
1583
self._cleanup_spare_files_after_format4()
1584
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
1586
def _cleanup_spare_files_after_format4(self):
1587
# FIXME working tree upgrade foo.
1588
for n in 'merged-patches', 'pending-merged-patches':
1590
## assert os.path.getsize(p) == 0
1591
self.bzrdir.transport.delete(n)
1592
except errors.NoSuchFile:
1594
self.bzrdir.transport.delete_tree('inventory-store')
1595
self.bzrdir.transport.delete_tree('text-store')
1597
def _convert_working_inv(self):
1598
inv = xml4.serializer_v4.read_inventory(
1599
self.branch.control_files.get('inventory'))
1600
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
1601
# FIXME inventory is a working tree change.
1602
self.branch.control_files.put('inventory', StringIO(new_inv_xml))
1604
def _write_all_weaves(self):
1605
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
1606
weave_transport = self.bzrdir.transport.clone('weaves')
1607
weaves = WeaveStore(weave_transport, prefixed=False)
1608
transaction = WriteTransaction()
1612
for file_id, file_weave in self.text_weaves.items():
1613
self.pb.update('writing weave', i, len(self.text_weaves))
1614
weaves._put_weave(file_id, file_weave, transaction)
1616
self.pb.update('inventory', 0, 1)
1617
controlweaves._put_weave('inventory', self.inv_weave, transaction)
1618
self.pb.update('inventory', 1, 1)
1622
def _write_all_revs(self):
1623
"""Write all revisions out in new form."""
1624
self.bzrdir.transport.delete_tree('revision-store')
1625
self.bzrdir.transport.mkdir('revision-store')
1626
revision_transport = self.bzrdir.transport.clone('revision-store')
1628
_revision_store = TextRevisionStore(TextStore(revision_transport,
1632
transaction = WriteTransaction()
1633
for i, rev_id in enumerate(self.converted_revs):
1634
self.pb.update('write revision', i, len(self.converted_revs))
1635
_revision_store.add_revision(self.revisions[rev_id], transaction)
1639
def _load_one_rev(self, rev_id):
1640
"""Load a revision object into memory.
1642
Any parents not either loaded or abandoned get queued to be
1644
self.pb.update('loading revision',
1645
len(self.revisions),
1646
len(self.known_revisions))
1647
if not self.branch.repository.has_revision(rev_id):
1649
self.pb.note('revision {%s} not present in branch; '
1650
'will be converted as a ghost',
1652
self.absent_revisions.add(rev_id)
1654
rev = self.branch.repository._revision_store.get_revision(rev_id,
1655
self.branch.repository.get_transaction())
1656
for parent_id in rev.parent_ids:
1657
self.known_revisions.add(parent_id)
1658
self.to_read.append(parent_id)
1659
self.revisions[rev_id] = rev
1661
def _load_old_inventory(self, rev_id):
1662
assert rev_id not in self.converted_revs
1663
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
1664
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
1665
inv.revision_id = rev_id
1666
rev = self.revisions[rev_id]
1667
if rev.inventory_sha1:
1668
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
1669
'inventory sha mismatch for {%s}' % rev_id
1672
def _load_updated_inventory(self, rev_id):
1673
assert rev_id in self.converted_revs
1674
inv_xml = self.inv_weave.get_text(rev_id)
1675
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml)
1678
def _convert_one_rev(self, rev_id):
1679
"""Convert revision and all referenced objects to new format."""
1680
rev = self.revisions[rev_id]
1681
inv = self._load_old_inventory(rev_id)
1682
present_parents = [p for p in rev.parent_ids
1683
if p not in self.absent_revisions]
1684
self._convert_revision_contents(rev, inv, present_parents)
1685
self._store_new_weave(rev, inv, present_parents)
1686
self.converted_revs.add(rev_id)
1688
def _store_new_weave(self, rev, inv, present_parents):
1689
# the XML is now updated with text versions
1691
entries = inv.iter_entries()
1693
for path, ie in entries:
1694
assert getattr(ie, 'revision', None) is not None, \
1695
'no revision on {%s} in {%s}' % \
1696
(file_id, rev.revision_id)
1697
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
1698
new_inv_sha1 = sha_string(new_inv_xml)
1699
self.inv_weave.add_lines(rev.revision_id,
1701
new_inv_xml.splitlines(True))
1702
rev.inventory_sha1 = new_inv_sha1
1704
def _convert_revision_contents(self, rev, inv, present_parents):
1705
"""Convert all the files within a revision.
1707
Also upgrade the inventory to refer to the text revision ids."""
1708
rev_id = rev.revision_id
1709
mutter('converting texts of revision {%s}',
1711
parent_invs = map(self._load_updated_inventory, present_parents)
1712
entries = inv.iter_entries()
1714
for path, ie in entries:
1715
self._convert_file_version(rev, ie, parent_invs)
1717
def _convert_file_version(self, rev, ie, parent_invs):
1718
"""Convert one version of one file.
1720
The file needs to be added into the weave if it is a merge
1721
of >=2 parents or if it's changed from its parent.
1723
file_id = ie.file_id
1724
rev_id = rev.revision_id
1725
w = self.text_weaves.get(file_id)
1728
self.text_weaves[file_id] = w
1729
text_changed = False
1730
previous_entries = ie.find_previous_heads(parent_invs,
1734
for old_revision in previous_entries:
1735
# if this fails, its a ghost ?
1736
assert old_revision in self.converted_revs, \
1737
"Revision {%s} not in converted_revs" % old_revision
1738
self.snapshot_ie(previous_entries, ie, w, rev_id)
1740
assert getattr(ie, 'revision', None) is not None
1742
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
1743
# TODO: convert this logic, which is ~= snapshot to
1744
# a call to:. This needs the path figured out. rather than a work_tree
1745
# a v4 revision_tree can be given, or something that looks enough like
1746
# one to give the file content to the entry if it needs it.
1747
# and we need something that looks like a weave store for snapshot to
1749
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
1750
if len(previous_revisions) == 1:
1751
previous_ie = previous_revisions.values()[0]
1752
if ie._unchanged(previous_ie):
1753
ie.revision = previous_ie.revision
1756
text = self.branch.repository.text_store.get(ie.text_id)
1757
file_lines = text.readlines()
1758
assert sha_strings(file_lines) == ie.text_sha1
1759
assert sum(map(len, file_lines)) == ie.text_size
1760
w.add_lines(rev_id, previous_revisions, file_lines)
1761
self.text_count += 1
1763
w.add_lines(rev_id, previous_revisions, [])
1764
ie.revision = rev_id
1766
def _make_order(self):
1767
"""Return a suitable order for importing revisions.
1769
The order must be such that an revision is imported after all
1770
its (present) parents.
1772
todo = set(self.revisions.keys())
1773
done = self.absent_revisions.copy()
1776
# scan through looking for a revision whose parents
1778
for rev_id in sorted(list(todo)):
1779
rev = self.revisions[rev_id]
1780
parent_ids = set(rev.parent_ids)
1781
if parent_ids.issubset(done):
1782
# can take this one now
1783
order.append(rev_id)
1789
class ConvertBzrDir5To6(Converter):
1790
"""Converts format 5 bzr dirs to format 6."""
1792
def convert(self, to_convert, pb):
1793
"""See Converter.convert()."""
1794
self.bzrdir = to_convert
1796
self.pb.note('starting upgrade from format 5 to 6')
1797
self._convert_to_prefixed()
1798
return BzrDir.open(self.bzrdir.root_transport.base)
1800
def _convert_to_prefixed(self):
1801
from bzrlib.store import TransportStore
1802
self.bzrdir.transport.delete('branch-format')
1803
for store_name in ["weaves", "revision-store"]:
1804
self.pb.note("adding prefixes to %s" % store_name)
1805
store_transport = self.bzrdir.transport.clone(store_name)
1806
store = TransportStore(store_transport, prefixed=True)
1807
for urlfilename in store_transport.list_dir('.'):
1808
filename = urlutils.unescape(urlfilename)
1809
if (filename.endswith(".weave") or
1810
filename.endswith(".gz") or
1811
filename.endswith(".sig")):
1812
file_id = os.path.splitext(filename)[0]
1815
prefix_dir = store.hash_prefix(file_id)
1816
# FIXME keep track of the dirs made RBC 20060121
1818
store_transport.move(filename, prefix_dir + '/' + filename)
1819
except errors.NoSuchFile: # catches missing dirs strangely enough
1820
store_transport.mkdir(prefix_dir)
1821
store_transport.move(filename, prefix_dir + '/' + filename)
1822
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
1825
class ConvertBzrDir6ToMeta(Converter):
1826
"""Converts format 6 bzr dirs to metadirs."""
1828
def convert(self, to_convert, pb):
1829
"""See Converter.convert()."""
1830
from bzrlib.branch import BzrBranchFormat5
1831
self.bzrdir = to_convert
1834
self.total = 20 # the steps we know about
1835
self.garbage_inventories = []
1837
self.pb.note('starting upgrade from format 6 to metadir')
1838
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
1839
# its faster to move specific files around than to open and use the apis...
1840
# first off, nuke ancestry.weave, it was never used.
1842
self.step('Removing ancestry.weave')
1843
self.bzrdir.transport.delete('ancestry.weave')
1844
except errors.NoSuchFile:
1846
# find out whats there
1847
self.step('Finding branch files')
1848
last_revision = self.bzrdir.open_branch().last_revision()
1849
bzrcontents = self.bzrdir.transport.list_dir('.')
1850
for name in bzrcontents:
1851
if name.startswith('basis-inventory.'):
1852
self.garbage_inventories.append(name)
1853
# create new directories for repository, working tree and branch
1854
self.dir_mode = self.bzrdir._control_files._dir_mode
1855
self.file_mode = self.bzrdir._control_files._file_mode
1856
repository_names = [('inventory.weave', True),
1857
('revision-store', True),
1859
self.step('Upgrading repository ')
1860
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
1861
self.make_lock('repository')
1862
# we hard code the formats here because we are converting into
1863
# the meta format. The meta format upgrader can take this to a
1864
# future format within each component.
1865
self.put_format('repository', _mod_repository.RepositoryFormat7())
1866
for entry in repository_names:
1867
self.move_entry('repository', entry)
1869
self.step('Upgrading branch ')
1870
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
1871
self.make_lock('branch')
1872
self.put_format('branch', BzrBranchFormat5())
1873
branch_files = [('revision-history', True),
1874
('branch-name', True),
1876
for entry in branch_files:
1877
self.move_entry('branch', entry)
1879
checkout_files = [('pending-merges', True),
1880
('inventory', True),
1881
('stat-cache', False)]
1882
# If a mandatory checkout file is not present, the branch does not have
1883
# a functional checkout. Do not create a checkout in the converted
1885
for name, mandatory in checkout_files:
1886
if mandatory and name not in bzrcontents:
1887
has_checkout = False
1891
if not has_checkout:
1892
self.pb.note('No working tree.')
1893
# If some checkout files are there, we may as well get rid of them.
1894
for name, mandatory in checkout_files:
1895
if name in bzrcontents:
1896
self.bzrdir.transport.delete(name)
1898
from bzrlib.workingtree import WorkingTreeFormat3
1899
self.step('Upgrading working tree')
1900
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
1901
self.make_lock('checkout')
1903
'checkout', WorkingTreeFormat3())
1904
self.bzrdir.transport.delete_multi(
1905
self.garbage_inventories, self.pb)
1906
for entry in checkout_files:
1907
self.move_entry('checkout', entry)
1908
if last_revision is not None:
1909
self.bzrdir._control_files.put_utf8(
1910
'checkout/last-revision', last_revision)
1911
self.bzrdir._control_files.put_utf8(
1912
'branch-format', BzrDirMetaFormat1().get_format_string())
1913
return BzrDir.open(self.bzrdir.root_transport.base)
1915
def make_lock(self, name):
1916
"""Make a lock for the new control dir name."""
1917
self.step('Make %s lock' % name)
1918
ld = lockdir.LockDir(self.bzrdir.transport,
1920
file_modebits=self.file_mode,
1921
dir_modebits=self.dir_mode)
1924
def move_entry(self, new_dir, entry):
1925
"""Move then entry name into new_dir."""
1927
mandatory = entry[1]
1928
self.step('Moving %s' % name)
1930
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
1931
except errors.NoSuchFile:
1935
def put_format(self, dirname, format):
1936
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
1939
class ConvertMetaToMeta(Converter):
1940
"""Converts the components of metadirs."""
1942
def __init__(self, target_format):
1943
"""Create a metadir to metadir converter.
1945
:param target_format: The final metadir format that is desired.
1947
self.target_format = target_format
1949
def convert(self, to_convert, pb):
1950
"""See Converter.convert()."""
1951
self.bzrdir = to_convert
1955
self.step('checking repository format')
1957
repo = self.bzrdir.open_repository()
1958
except errors.NoRepositoryPresent:
1961
if not isinstance(repo._format, self.target_format.repository_format.__class__):
1962
from bzrlib.repository import CopyConverter
1963
self.pb.note('starting repository conversion')
1964
converter = CopyConverter(self.target_format.repository_format)
1965
converter.convert(repo, pb)
1969
class BzrDirFormatInfo(object):
1971
def __init__(self, native, deprecated):
1972
self.deprecated = deprecated
1973
self.native = native
1976
class BzrDirFormatRegistry(registry.Registry):
1977
"""Registry of user-selectable BzrDir subformats.
1979
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
1980
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
1983
def register_metadir(self, key, repo, help, native=True, deprecated=False,
1984
branch_format=None):
1985
"""Register a metadir subformat.
1987
repo is the repository format name as a string.
1989
# This should be expanded to support setting WorkingTree and Branch
1990
# formats, once BzrDirMetaFormat1 supports that.
1992
import bzrlib.repository
1993
import bzrlib.branch
1994
repo_format = getattr(bzrlib.repository, repo)
1995
bd = BzrDirMetaFormat1()
1996
bd.repository_format = repo_format()
1997
if branch_format is not None:
1998
bd.branch_format = getattr(bzrlib.branch, branch_format)()
2000
self.register(key, helper, help, native, deprecated)
2002
def register(self, key, factory, help, native=True, deprecated=False):
2003
"""Register a BzrDirFormat factory.
2005
The factory must be a callable that takes one parameter: the key.
2006
It must produce an instance of the BzrDirFormat when called.
2008
This function mainly exists to prevent the info object from being
2011
registry.Registry.register(self, key, factory, help,
2012
BzrDirFormatInfo(native, deprecated))
2014
def register_lazy(self, key, module_name, member_name, help, native=True,
2016
registry.Registry.register_lazy(self, key, module_name, member_name,
2017
help, BzrDirFormatInfo(native, deprecated))
2019
def set_default(self, key):
2020
"""Set the 'default' key to be a clone of the supplied key.
2022
This method must be called once and only once.
2024
registry.Registry.register(self, 'default', self.get(key),
2025
self.get_help(key), info=self.get_info(key))
2027
def set_default_repository(self, key):
2028
"""Set the FormatRegistry default and Repository default.
2030
This is a transitional method while Repository.set_default_format
2033
if 'default' in self:
2034
self.remove('default')
2035
self.set_default(key)
2036
format = self.get('default')()
2037
assert isinstance(format, BzrDirMetaFormat1)
2038
from bzrlib import repository
2039
repository.RepositoryFormat._set_default_format(
2040
format.repository_format)
2042
def make_bzrdir(self, key):
2043
return self.get(key)()
2045
def help_topic(self, topic):
2046
output = textwrap.dedent("""\
2047
Bazaar directory formats
2048
------------------------
2050
These formats can be used for creating branches, working trees, and
2054
default_help = self.get_help('default')
2056
for key in self.keys():
2057
if key == 'default':
2059
help = self.get_help(key)
2060
if help == default_help:
2061
default_realkey = key
2063
help_pairs.append((key, help))
2065
def wrapped(key, help, info):
2067
help = '(native) ' + help
2068
return ' %s:\n%s\n\n' % (key,
2069
textwrap.fill(help, initial_indent=' ',
2070
subsequent_indent=' '))
2071
output += wrapped('%s/default' % default_realkey, default_help,
2072
self.get_info('default'))
2073
deprecated_pairs = []
2074
for key, help in help_pairs:
2075
info = self.get_info(key)
2077
deprecated_pairs.append((key, help))
2079
output += wrapped(key, help, info)
2080
if len(deprecated_pairs) > 0:
2081
output += "Deprecated formats\n------------------\n\n"
2082
for key, help in deprecated_pairs:
2083
info = self.get_info(key)
2084
output += wrapped(key, help, info)
2089
format_registry = BzrDirFormatRegistry()
2090
format_registry.register('weave', BzrDirFormat6,
2091
'Pre-0.8 format. Slower than knit and does not'
2092
' support checkouts or shared repositories.', deprecated=True)
2093
format_registry.register_metadir('knit', 'RepositoryFormatKnit1',
2094
'Format using knits. Recommended.', branch_format='BzrBranchFormat5')
2095
format_registry.set_default('knit')
2096
format_registry.register_metadir('metaweave', 'RepositoryFormat7',
2097
'Transitional format in 0.8. Slower than knit.',
2099
format_registry.register_metadir('experimental-knit2', 'RepositoryFormatKnit2',
2100
'Experimental successor to knit. Use at your own risk.')
2101
format_registry.register_metadir('experimental-branch6',
2102
'RepositoryFormatKnit2',
2103
'Experimental successor to knit. Use at your own risk.',
2104
branch_format='BzrBranchFormat6')
added
removed
bzrlib/bzrdir.py
