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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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Note: This module has a lot of ``open`` functions/methods that return
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references to in-memory objects. As a rule, there are no matching ``close``
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methods. To free any associated resources, simply stop referencing the
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# TODO: Move old formats into a plugin to make this file smaller.
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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 stat import S_ISDIR
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from warnings import warn
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revision as _mod_revision,
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from bzrlib.osutils import (
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from bzrlib.smart.client import _SmartClient
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from bzrlib.smart import protocol
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from bzrlib.store.revision.text import TextRevisionStore
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from bzrlib.store.text import TextStore
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from bzrlib.store.versioned import WeaveStore
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from bzrlib.transactions import WriteTransaction
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from bzrlib.transport import (
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do_catching_redirections,
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from bzrlib.weave import Weave
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from bzrlib.trace import (
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from bzrlib.transport.local import LocalTransport
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from bzrlib.symbol_versioning import (
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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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(i.e. the parent directory holding the .bzr directory).
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def break_lock(self):
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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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# XXX: This seems more like a UI function than something that really
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# belongs in this class.
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thing_to_unlock = self.open_workingtree()
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except (errors.NotLocalUrl, errors.NoWorkingTree):
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thing_to_unlock = self.open_branch()
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except errors.NotBranchError:
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thing_to_unlock = self.open_repository()
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except errors.NoRepositoryPresent:
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thing_to_unlock.break_lock()
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def can_convert_format(self):
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"""Return true if this bzrdir is one whose format we can convert from."""
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def check_conversion_target(self, target_format):
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target_repo_format = target_format.repository_format
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source_repo_format = self._format.repository_format
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source_repo_format.check_conversion_target(target_repo_format)
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def _check_supported(format, allow_unsupported,
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recommend_upgrade=True,
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"""Give an error or warning on old formats.
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:param format: may be any kind of format - workingtree, branch,
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:param allow_unsupported: If true, allow opening
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formats that are strongly deprecated, and which may
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have limited functionality.
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:param recommend_upgrade: If true (default), warn
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the user through the ui object that they may wish
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to upgrade the object.
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# TODO: perhaps move this into a base Format class; it's not BzrDir
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# specific. mbp 20070323
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if not allow_unsupported and not format.is_supported():
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# see open_downlevel to open legacy branches.
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raise errors.UnsupportedFormatError(format=format)
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if recommend_upgrade \
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and getattr(format, 'upgrade_recommended', False):
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ui.ui_factory.recommend_upgrade(
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format.get_format_description(),
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def clone(self, url, revision_id=None, force_new_repo=False):
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"""Clone this bzrdir and its contents to url verbatim.
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If url's 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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return self.clone_on_transport(get_transport(url),
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revision_id=revision_id,
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force_new_repo=force_new_repo)
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def clone_on_transport(self, transport, revision_id=None,
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force_new_repo=False):
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"""Clone this bzrdir and its contents to transport verbatim.
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If the target directory 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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transport.ensure_base()
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result = self.cloning_metadir().initialize_on_transport(transport)
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repository_policy = None
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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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repository_policy = result.determine_repository_policy(
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make_working_trees = local_repo.make_working_trees()
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result_repo = repository_policy.acquire_repository(
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make_working_trees, local_repo.is_shared())
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result_repo.fetch(local_repo, revision_id=revision_id)
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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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local_branch = self.open_branch()
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except errors.NotBranchError:
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result_branch = local_branch.clone(result, revision_id=revision_id)
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if repository_policy is not None:
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repository_policy.configure_branch(result_branch)
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result_repo = result.find_repository()
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except errors.NoRepositoryPresent:
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if result_repo is None or result_repo.make_working_trees():
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self.open_workingtree().clone(result)
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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# TODO: This should be given a Transport, and should chdir up; otherwise
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# this will open a new connection.
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def _make_tail(self, url):
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t = get_transport(url)
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def create(cls, base, format=None, possible_transports=None):
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"""Create a new BzrDir at the url 'base'.
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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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:param possible_transports: If supplied, a list of transports that
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can be reused to share a remote connection.
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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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t = get_transport(base, possible_transports)
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format = BzrDirFormat.get_default_format()
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return format.initialize_on_transport(t)
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def find_bzrdirs(transport, evaluate=None, list_current=None):
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"""Find bzrdirs recursively from current location.
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This is intended primarily as a building block for more sophisticated
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functionality, like finding trees under a directory, or finding
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branches that use a given repository.
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:param evaluate: An optional callable that yields recurse, value,
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where recurse controls whether this bzrdir is recursed into
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and value is the value to yield. By default, all bzrdirs
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are recursed into, and the return value is the bzrdir.
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:param list_current: if supplied, use this function to list the current
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directory, instead of Transport.list_dir
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:return: a generator of found bzrdirs, or whatever evaluate returns.
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if list_current is None:
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def list_current(transport):
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return transport.list_dir('')
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def evaluate(bzrdir):
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pending = [transport]
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while len(pending) > 0:
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current_transport = pending.pop()
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bzrdir = BzrDir.open_from_transport(current_transport)
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except errors.NotBranchError:
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recurse, value = evaluate(bzrdir)
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subdirs = list_current(current_transport)
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except errors.NoSuchFile:
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for subdir in sorted(subdirs, reverse=True):
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pending.append(current_transport.clone(subdir))
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def find_branches(transport):
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"""Find all branches under a transport.
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This will find all branches below the transport, including branches
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inside other branches. Where possible, it will use
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Repository.find_branches.
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To list all the branches that use a particular Repository, see
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Repository.find_branches
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def evaluate(bzrdir):
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repository = bzrdir.open_repository()
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except errors.NoRepositoryPresent:
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return False, (None, repository)
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branch = bzrdir.open_branch()
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except errors.NotBranchError:
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return True, (None, None)
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return True, (branch, None)
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for branch, repo in BzrDir.find_bzrdirs(transport, evaluate=evaluate):
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branches.extend(repo.find_branches())
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if branch is not None:
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branches.append(branch)
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def destroy_repository(self):
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"""Destroy the repository in this BzrDir"""
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raise NotImplementedError(self.destroy_repository)
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def create_branch(self):
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"""Create a branch in this BzrDir.
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The bzrdir's 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 destroy_branch(self):
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"""Destroy the branch in this BzrDir"""
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raise NotImplementedError(self.destroy_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 unless one is
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specified, 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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: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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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 determine_repository_policy(self, force_new_repo=False):
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"""Return an object representing a policy to use.
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This controls whether a new repository is created, or a shared
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repository used instead.
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def repository_policy(found_bzrdir):
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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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if ((found_bzrdir.root_transport.base !=
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self.root_transport.base) and not repository.is_shared()):
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return UseExistingRepository(repository), True
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return CreateRepository(self), True
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if not force_new_repo:
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policy = self._find_containing(repository_policy)
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if policy is not None:
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return CreateRepository(self)
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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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policy = self.determine_repository_policy(force_new_repo)
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return policy.acquire_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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possible_transports=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 unless one is
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specified, 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 bzrdir format to create.
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:param possible_transports: An optional reusable transports list.
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# check for non local urls
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t = get_transport(base, possible_transports)
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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, possible_transports)
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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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@deprecated_function(zero_ninetyone)
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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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This method is deprecated, please call create_repository on a bzrdir
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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 unless one is
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specified, 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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:param format: Override for the bzrdir format to create.
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:return: The WorkingTree object.
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t = get_transport(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(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, from_branch=None,
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accelerator_tree=None, hardlink=False):
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"""Create a working tree at this BzrDir.
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:param revision_id: create it as of this revision id.
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:param from_branch: override bzrdir branch (for lightweight checkouts)
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:param accelerator_tree: A tree which can be used for retrieving file
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contents more quickly than the revision tree, i.e. a workingtree.
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The revision tree will be used for cases where accelerator_tree's
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content is different.
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raise NotImplementedError(self.create_workingtree)
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def retire_bzrdir(self, limit=10000):
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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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:param limit: number of times to retry
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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_containing(self, evaluate):
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"""Find something in a containing control directory.
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This method will scan containing control dirs, until it finds what
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it is looking for, decides that it will never find it, or runs out
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of containing control directories to check.
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It is used to implement find_repository and
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determine_repository_policy.
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:param evaluate: A function returning (value, stop). If stop is True,
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the value will be returned.
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result, stop = evaluate(found_bzrdir)
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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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# 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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def find_repository(self):
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"""Find the repository that should be used.
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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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def usable_repository(found_bzrdir):
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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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if found_bzrdir.root_transport.base == self.root_transport.base:
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return repository, True
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elif repository.is_shared():
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return repository, True
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found_repo = self._find_containing(usable_repository)
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if found_repo is None:
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raise errors.NoRepositoryPresent(self)
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def get_branch_reference(self):
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"""Return the referenced URL for the branch in this bzrdir.
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:raises NotBranchError: If there is no Branch.
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:return: The URL the branch in this bzrdir references if it is a
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reference branch, or None for regular branches.
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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 method's
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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, possible_transports=None):
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"""Open an existing bzrdir, rooted at 'base' (url).
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:param _unsupported: a private parameter to the BzrDir class.
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t = get_transport(base, possible_transports=possible_transports)
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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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_server_formats=True):
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"""Open a bzrdir within a particular directory.
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:param transport: Transport containing the bzrdir.
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:param _unsupported: private.
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base = transport.base
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def find_format(transport):
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return transport, BzrDirFormat.find_format(
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transport, _server_formats=_server_formats)
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def redirected(transport, e, redirection_notice):
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qualified_source = e.get_source_url()
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relpath = transport.relpath(qualified_source)
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if not e.target.endswith(relpath):
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# Not redirected to a branch-format, not a branch
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raise errors.NotBranchError(path=e.target)
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target = e.target[:-len(relpath)]
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note('%s is%s redirected to %s',
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transport.base, e.permanently, target)
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# Let's try with a new transport
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# FIXME: If 'transport' has a qualifier, this should
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# be applied again to the new transport *iff* the
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# schemes used are the same. Uncomment this code
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# once the function (and tests) exist.
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#target = urlutils.copy_url_qualifiers(original, target)
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return get_transport(target)
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transport, format = do_catching_redirections(find_format,
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except errors.TooManyRedirections:
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raise errors.NotBranchError(base)
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BzrDir._check_supported(format, _unsupported)
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return format.open(transport, _found=True)
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def open_branch(self, unsupported=False):
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"""Open the branch object at this BzrDir if one is present.
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If unsupported is True, then no longer supported branch formats can
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TODO: static convenience version of this?
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raise NotImplementedError(self.open_branch)
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def open_containing(url, possible_transports=None):
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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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transport = get_transport(url, possible_transports)
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return BzrDir.open_containing_from_transport(transport)
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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)
775
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('..')
780
except errors.InvalidURLJoin:
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# reached the root, whatever that may be
782
raise errors.NotBranchError(path=url)
783
if new_t.base == a_transport.base:
784
# reached the root, whatever that may be
785
raise errors.NotBranchError(path=url)
788
def _get_tree_branch(self):
789
"""Return the branch and tree, if any, for this bzrdir.
791
Return None for tree if not present or inaccessible.
792
Raise NotBranchError if no branch is present.
793
:return: (tree, branch)
796
tree = self.open_workingtree()
797
except (errors.NoWorkingTree, errors.NotLocalUrl):
799
branch = self.open_branch()
805
def open_tree_or_branch(klass, location):
806
"""Return the branch and working tree at a location.
808
If there is no tree at the location, tree will be None.
809
If there is no branch at the location, an exception will be
811
:return: (tree, branch)
813
bzrdir = klass.open(location)
814
return bzrdir._get_tree_branch()
817
def open_containing_tree_or_branch(klass, location):
818
"""Return the branch and working tree contained by a location.
820
Returns (tree, branch, relpath).
821
If there is no tree at containing the location, tree will be None.
822
If there is no branch containing the location, an exception will be
824
relpath is the portion of the path that is contained by the branch.
826
bzrdir, relpath = klass.open_containing(location)
827
tree, branch = bzrdir._get_tree_branch()
828
return tree, branch, relpath
830
def open_repository(self, _unsupported=False):
831
"""Open the repository object at this BzrDir if one is present.
833
This will not follow the Branch object pointer - it's strictly a direct
834
open facility. Most client code should use open_branch().repository to
837
:param _unsupported: a private parameter, not part of the api.
838
TODO: static convenience version of this?
840
raise NotImplementedError(self.open_repository)
842
def open_workingtree(self, _unsupported=False,
843
recommend_upgrade=True, from_branch=None):
844
"""Open the workingtree object at this BzrDir if one is present.
846
:param recommend_upgrade: Optional keyword parameter, when True (the
847
default), emit through the ui module a recommendation that the user
848
upgrade the working tree when the workingtree being opened is old
849
(but still fully supported).
850
:param from_branch: override bzrdir branch (for lightweight checkouts)
852
raise NotImplementedError(self.open_workingtree)
854
def has_branch(self):
855
"""Tell if this bzrdir contains a branch.
857
Note: if you're going to open the branch, you should just go ahead
858
and try, and not ask permission first. (This method just opens the
859
branch and discards it, and that's somewhat expensive.)
864
except errors.NotBranchError:
867
def has_workingtree(self):
868
"""Tell if this bzrdir contains a working tree.
870
This will still raise an exception if the bzrdir has a workingtree that
871
is remote & inaccessible.
873
Note: if you're going to open the working tree, you should just go ahead
874
and try, and not ask permission first. (This method just opens the
875
workingtree and discards it, and that's somewhat expensive.)
878
self.open_workingtree(recommend_upgrade=False)
880
except errors.NoWorkingTree:
883
def _cloning_metadir(self):
884
"""Produce a metadir suitable for cloning with."""
885
result_format = self._format.__class__()
888
branch = self.open_branch()
889
source_repository = branch.repository
890
except errors.NotBranchError:
892
source_repository = self.open_repository()
893
except errors.NoRepositoryPresent:
894
source_repository = None
896
# XXX TODO: This isinstance is here because we have not implemented
897
# the fix recommended in bug # 103195 - to delegate this choice the
899
repo_format = source_repository._format
900
if not isinstance(repo_format, remote.RemoteRepositoryFormat):
901
result_format.repository_format = repo_format
903
# TODO: Couldn't we just probe for the format in these cases,
904
# rather than opening the whole tree? It would be a little
905
# faster. mbp 20070401
906
tree = self.open_workingtree(recommend_upgrade=False)
907
except (errors.NoWorkingTree, errors.NotLocalUrl):
908
result_format.workingtree_format = None
910
result_format.workingtree_format = tree._format.__class__()
911
return result_format, source_repository
913
def cloning_metadir(self):
914
"""Produce a metadir suitable for cloning or sprouting with.
916
These operations may produce workingtrees (yes, even though they're
917
"cloning" something that doesn't have a tree), so a viable workingtree
918
format must be selected.
920
format, repository = self._cloning_metadir()
921
if format._workingtree_format is None:
922
if repository is None:
924
tree_format = repository._format._matchingbzrdir.workingtree_format
925
format.workingtree_format = tree_format.__class__()
928
def checkout_metadir(self):
929
return self.cloning_metadir()
931
def sprout(self, url, revision_id=None, force_new_repo=False,
932
recurse='down', possible_transports=None,
933
accelerator_tree=None, hardlink=False):
934
"""Create a copy of this bzrdir prepared for use as a new line of
937
If url's last component does not exist, it will be created.
939
Attributes related to the identity of the source branch like
940
branch nickname will be cleaned, a working tree is created
941
whether one existed before or not; and a local branch is always
944
if revision_id is not None, then the clone operation may tune
945
itself to download less data.
946
:param accelerator_tree: A tree which can be used for retrieving file
947
contents more quickly than the revision tree, i.e. a workingtree.
948
The revision tree will be used for cases where accelerator_tree's
949
content is different.
950
:param hardlink: If true, hard-link files from accelerator_tree,
953
target_transport = get_transport(url, possible_transports)
954
target_transport.ensure_base()
955
cloning_format = self.cloning_metadir()
956
result = cloning_format.initialize_on_transport(target_transport)
958
source_branch = self.open_branch()
959
source_repository = source_branch.repository
960
except errors.NotBranchError:
963
source_repository = self.open_repository()
964
except errors.NoRepositoryPresent:
965
source_repository = None
970
result_repo = result.find_repository()
971
except errors.NoRepositoryPresent:
973
if source_repository is None and result_repo is not None:
975
elif source_repository is None and result_repo is None:
976
# no repo available, make a new one
977
result.create_repository()
978
elif source_repository is not None and result_repo is None:
979
# have source, and want to make a new target repo
980
result_repo = source_repository.sprout(result,
981
revision_id=revision_id)
983
# fetch needed content into target.
984
if source_repository is not None:
986
# source_repository.copy_content_into(result_repo,
987
# revision_id=revision_id)
988
# so we can override the copy method
989
result_repo.fetch(source_repository, revision_id=revision_id)
990
if source_branch is not None:
991
source_branch.sprout(result, revision_id=revision_id)
993
result.create_branch()
994
if isinstance(target_transport, LocalTransport) and (
995
result_repo is None or result_repo.make_working_trees()):
996
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
1000
if wt.path2id('') is None:
1002
wt.set_root_id(self.open_workingtree.get_root_id())
1003
except errors.NoWorkingTree:
1009
if recurse == 'down':
1011
basis = wt.basis_tree()
1013
subtrees = basis.iter_references()
1014
recurse_branch = wt.branch
1015
elif source_branch is not None:
1016
basis = source_branch.basis_tree()
1018
subtrees = basis.iter_references()
1019
recurse_branch = source_branch
1024
for path, file_id in subtrees:
1025
target = urlutils.join(url, urlutils.escape(path))
1026
sublocation = source_branch.reference_parent(file_id, path)
1027
sublocation.bzrdir.sprout(target,
1028
basis.get_reference_revision(file_id, path),
1029
force_new_repo=force_new_repo, recurse=recurse)
1031
if basis is not None:
1036
class BzrDirPreSplitOut(BzrDir):
1037
"""A common class for the all-in-one formats."""
1039
def __init__(self, _transport, _format):
1040
"""See BzrDir.__init__."""
1041
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
1042
assert self._format._lock_class == lockable_files.TransportLock
1043
assert self._format._lock_file_name == 'branch-lock'
1044
self._control_files = lockable_files.LockableFiles(
1045
self.get_branch_transport(None),
1046
self._format._lock_file_name,
1047
self._format._lock_class)
1049
def break_lock(self):
1050
"""Pre-splitout bzrdirs do not suffer from stale locks."""
1051
raise NotImplementedError(self.break_lock)
1053
def cloning_metadir(self):
1054
"""Produce a metadir suitable for cloning with."""
1055
return self._format.__class__()
1057
def clone(self, url, revision_id=None, force_new_repo=False):
1058
"""See BzrDir.clone()."""
1059
from bzrlib.workingtree import WorkingTreeFormat2
1060
self._make_tail(url)
1061
result = self._format._initialize_for_clone(url)
1062
self.open_repository().clone(result, revision_id=revision_id)
1063
from_branch = self.open_branch()
1064
from_branch.clone(result, revision_id=revision_id)
1066
self.open_workingtree().clone(result)
1067
except errors.NotLocalUrl:
1068
# make a new one, this format always has to have one.
1070
WorkingTreeFormat2().initialize(result)
1071
except errors.NotLocalUrl:
1072
# but we cannot do it for remote trees.
1073
to_branch = result.open_branch()
1074
WorkingTreeFormat2().stub_initialize_remote(to_branch.control_files)
1077
def create_branch(self):
1078
"""See BzrDir.create_branch."""
1079
return self.open_branch()
1081
def destroy_branch(self):
1082
"""See BzrDir.destroy_branch."""
1083
raise errors.UnsupportedOperation(self.destroy_branch, self)
1085
def create_repository(self, shared=False):
1086
"""See BzrDir.create_repository."""
1088
raise errors.IncompatibleFormat('shared repository', self._format)
1089
return self.open_repository()
1091
def destroy_repository(self):
1092
"""See BzrDir.destroy_repository."""
1093
raise errors.UnsupportedOperation(self.destroy_repository, self)
1095
def create_workingtree(self, revision_id=None, from_branch=None,
1096
accelerator_tree=None, hardlink=False):
1097
"""See BzrDir.create_workingtree."""
1098
# this looks buggy but is not -really-
1099
# because this format creates the workingtree when the bzrdir is
1101
# clone and sprout will have set the revision_id
1102
# and that will have set it for us, its only
1103
# specific uses of create_workingtree in isolation
1104
# that can do wonky stuff here, and that only
1105
# happens for creating checkouts, which cannot be
1106
# done on this format anyway. So - acceptable wart.
1107
result = self.open_workingtree(recommend_upgrade=False)
1108
if revision_id is not None:
1109
if revision_id == _mod_revision.NULL_REVISION:
1110
result.set_parent_ids([])
1112
result.set_parent_ids([revision_id])
1115
def destroy_workingtree(self):
1116
"""See BzrDir.destroy_workingtree."""
1117
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
1119
def destroy_workingtree_metadata(self):
1120
"""See BzrDir.destroy_workingtree_metadata."""
1121
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
1124
def get_branch_transport(self, branch_format):
1125
"""See BzrDir.get_branch_transport()."""
1126
if branch_format is None:
1127
return self.transport
1129
branch_format.get_format_string()
1130
except NotImplementedError:
1131
return self.transport
1132
raise errors.IncompatibleFormat(branch_format, self._format)
1134
def get_repository_transport(self, repository_format):
1135
"""See BzrDir.get_repository_transport()."""
1136
if repository_format is None:
1137
return self.transport
1139
repository_format.get_format_string()
1140
except NotImplementedError:
1141
return self.transport
1142
raise errors.IncompatibleFormat(repository_format, self._format)
1144
def get_workingtree_transport(self, workingtree_format):
1145
"""See BzrDir.get_workingtree_transport()."""
1146
if workingtree_format is None:
1147
return self.transport
1149
workingtree_format.get_format_string()
1150
except NotImplementedError:
1151
return self.transport
1152
raise errors.IncompatibleFormat(workingtree_format, self._format)
1154
def needs_format_conversion(self, format=None):
1155
"""See BzrDir.needs_format_conversion()."""
1156
# if the format is not the same as the system default,
1157
# an upgrade is needed.
1159
format = BzrDirFormat.get_default_format()
1160
return not isinstance(self._format, format.__class__)
1162
def open_branch(self, unsupported=False):
1163
"""See BzrDir.open_branch."""
1164
from bzrlib.branch import BzrBranchFormat4
1165
format = BzrBranchFormat4()
1166
self._check_supported(format, unsupported)
1167
return format.open(self, _found=True)
1169
def sprout(self, url, revision_id=None, force_new_repo=False,
1170
possible_transports=None, accelerator_tree=None,
1172
"""See BzrDir.sprout()."""
1173
from bzrlib.workingtree import WorkingTreeFormat2
1174
self._make_tail(url)
1175
result = self._format._initialize_for_clone(url)
1177
self.open_repository().clone(result, revision_id=revision_id)
1178
except errors.NoRepositoryPresent:
1181
self.open_branch().sprout(result, revision_id=revision_id)
1182
except errors.NotBranchError:
1184
# we always want a working tree
1185
WorkingTreeFormat2().initialize(result,
1186
accelerator_tree=accelerator_tree,
1191
class BzrDir4(BzrDirPreSplitOut):
1192
"""A .bzr version 4 control object.
1194
This is a deprecated format and may be removed after sept 2006.
1197
def create_repository(self, shared=False):
1198
"""See BzrDir.create_repository."""
1199
return self._format.repository_format.initialize(self, shared)
1201
def needs_format_conversion(self, format=None):
1202
"""Format 4 dirs are always in need of conversion."""
1205
def open_repository(self):
1206
"""See BzrDir.open_repository."""
1207
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1208
return RepositoryFormat4().open(self, _found=True)
1211
class BzrDir5(BzrDirPreSplitOut):
1212
"""A .bzr version 5 control object.
1214
This is a deprecated format and may be removed after sept 2006.
1217
def open_repository(self):
1218
"""See BzrDir.open_repository."""
1219
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1220
return RepositoryFormat5().open(self, _found=True)
1222
def open_workingtree(self, _unsupported=False,
1223
recommend_upgrade=True):
1224
"""See BzrDir.create_workingtree."""
1225
from bzrlib.workingtree import WorkingTreeFormat2
1226
wt_format = WorkingTreeFormat2()
1227
# we don't warn here about upgrades; that ought to be handled for the
1229
return wt_format.open(self, _found=True)
1232
class BzrDir6(BzrDirPreSplitOut):
1233
"""A .bzr version 6 control object.
1235
This is a deprecated format and may be removed after sept 2006.
1238
def open_repository(self):
1239
"""See BzrDir.open_repository."""
1240
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1241
return RepositoryFormat6().open(self, _found=True)
1243
def open_workingtree(self, _unsupported=False,
1244
recommend_upgrade=True):
1245
"""See BzrDir.create_workingtree."""
1246
# we don't warn here about upgrades; that ought to be handled for the
1248
from bzrlib.workingtree import WorkingTreeFormat2
1249
return WorkingTreeFormat2().open(self, _found=True)
1252
class BzrDirMeta1(BzrDir):
1253
"""A .bzr meta version 1 control object.
1255
This is the first control object where the
1256
individual aspects are really split out: there are separate repository,
1257
workingtree and branch subdirectories and any subset of the three can be
1258
present within a BzrDir.
1261
def can_convert_format(self):
1262
"""See BzrDir.can_convert_format()."""
1265
def create_branch(self):
1266
"""See BzrDir.create_branch."""
1267
return self._format.get_branch_format().initialize(self)
1269
def destroy_branch(self):
1270
"""See BzrDir.create_branch."""
1271
self.transport.delete_tree('branch')
1273
def create_repository(self, shared=False):
1274
"""See BzrDir.create_repository."""
1275
return self._format.repository_format.initialize(self, shared)
1277
def destroy_repository(self):
1278
"""See BzrDir.destroy_repository."""
1279
self.transport.delete_tree('repository')
1281
def create_workingtree(self, revision_id=None, from_branch=None,
1282
accelerator_tree=None, hardlink=False):
1283
"""See BzrDir.create_workingtree."""
1284
return self._format.workingtree_format.initialize(
1285
self, revision_id, from_branch=from_branch,
1286
accelerator_tree=accelerator_tree, hardlink=hardlink)
1288
def destroy_workingtree(self):
1289
"""See BzrDir.destroy_workingtree."""
1290
wt = self.open_workingtree(recommend_upgrade=False)
1291
repository = wt.branch.repository
1292
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1293
wt.revert(old_tree=empty)
1294
self.destroy_workingtree_metadata()
1296
def destroy_workingtree_metadata(self):
1297
self.transport.delete_tree('checkout')
1299
def find_branch_format(self):
1300
"""Find the branch 'format' for this bzrdir.
1302
This might be a synthetic object for e.g. RemoteBranch and SVN.
1304
from bzrlib.branch import BranchFormat
1305
return BranchFormat.find_format(self)
1307
def _get_mkdir_mode(self):
1308
"""Figure out the mode to use when creating a bzrdir subdir."""
1309
temp_control = lockable_files.LockableFiles(self.transport, '',
1310
lockable_files.TransportLock)
1311
return temp_control._dir_mode
1313
def get_branch_reference(self):
1314
"""See BzrDir.get_branch_reference()."""
1315
from bzrlib.branch import BranchFormat
1316
format = BranchFormat.find_format(self)
1317
return format.get_reference(self)
1319
def get_branch_transport(self, branch_format):
1320
"""See BzrDir.get_branch_transport()."""
1321
if branch_format is None:
1322
return self.transport.clone('branch')
1324
branch_format.get_format_string()
1325
except NotImplementedError:
1326
raise errors.IncompatibleFormat(branch_format, self._format)
1328
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1329
except errors.FileExists:
1331
return self.transport.clone('branch')
1333
def get_repository_transport(self, repository_format):
1334
"""See BzrDir.get_repository_transport()."""
1335
if repository_format is None:
1336
return self.transport.clone('repository')
1338
repository_format.get_format_string()
1339
except NotImplementedError:
1340
raise errors.IncompatibleFormat(repository_format, self._format)
1342
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1343
except errors.FileExists:
1345
return self.transport.clone('repository')
1347
def get_workingtree_transport(self, workingtree_format):
1348
"""See BzrDir.get_workingtree_transport()."""
1349
if workingtree_format is None:
1350
return self.transport.clone('checkout')
1352
workingtree_format.get_format_string()
1353
except NotImplementedError:
1354
raise errors.IncompatibleFormat(workingtree_format, self._format)
1356
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1357
except errors.FileExists:
1359
return self.transport.clone('checkout')
1361
def needs_format_conversion(self, format=None):
1362
"""See BzrDir.needs_format_conversion()."""
1364
format = BzrDirFormat.get_default_format()
1365
if not isinstance(self._format, format.__class__):
1366
# it is not a meta dir format, conversion is needed.
1368
# we might want to push this down to the repository?
1370
if not isinstance(self.open_repository()._format,
1371
format.repository_format.__class__):
1372
# the repository needs an upgrade.
1374
except errors.NoRepositoryPresent:
1377
if not isinstance(self.open_branch()._format,
1378
format.get_branch_format().__class__):
1379
# the branch needs an upgrade.
1381
except errors.NotBranchError:
1384
my_wt = self.open_workingtree(recommend_upgrade=False)
1385
if not isinstance(my_wt._format,
1386
format.workingtree_format.__class__):
1387
# the workingtree needs an upgrade.
1389
except (errors.NoWorkingTree, errors.NotLocalUrl):
1393
def open_branch(self, unsupported=False):
1394
"""See BzrDir.open_branch."""
1395
format = self.find_branch_format()
1396
self._check_supported(format, unsupported)
1397
return format.open(self, _found=True)
1399
def open_repository(self, unsupported=False):
1400
"""See BzrDir.open_repository."""
1401
from bzrlib.repository import RepositoryFormat
1402
format = RepositoryFormat.find_format(self)
1403
self._check_supported(format, unsupported)
1404
return format.open(self, _found=True)
1406
def open_workingtree(self, unsupported=False,
1407
recommend_upgrade=True):
1408
"""See BzrDir.open_workingtree."""
1409
from bzrlib.workingtree import WorkingTreeFormat
1410
format = WorkingTreeFormat.find_format(self)
1411
self._check_supported(format, unsupported,
1413
basedir=self.root_transport.base)
1414
return format.open(self, _found=True)
1417
class BzrDirFormat(object):
1418
"""An encapsulation of the initialization and open routines for a format.
1420
Formats provide three things:
1421
* An initialization routine,
1425
Formats are placed in a dict by their format string for reference
1426
during bzrdir opening. These should be subclasses of BzrDirFormat
1429
Once a format is deprecated, just deprecate the initialize and open
1430
methods on the format class. Do not deprecate the object, as the
1431
object will be created every system load.
1434
_default_format = None
1435
"""The default format used for new .bzr dirs."""
1438
"""The known formats."""
1440
_control_formats = []
1441
"""The registered control formats - .bzr, ....
1443
This is a list of BzrDirFormat objects.
1446
_control_server_formats = []
1447
"""The registered control server formats, e.g. RemoteBzrDirs.
1449
This is a list of BzrDirFormat objects.
1452
_lock_file_name = 'branch-lock'
1454
# _lock_class must be set in subclasses to the lock type, typ.
1455
# TransportLock or LockDir
1458
def find_format(klass, transport, _server_formats=True):
1459
"""Return the format present at transport."""
1461
formats = klass._control_server_formats + klass._control_formats
1463
formats = klass._control_formats
1464
for format in formats:
1466
return format.probe_transport(transport)
1467
except errors.NotBranchError:
1468
# this format does not find a control dir here.
1470
raise errors.NotBranchError(path=transport.base)
1473
def probe_transport(klass, transport):
1474
"""Return the .bzrdir style format present in a directory."""
1476
format_string = transport.get(".bzr/branch-format").read()
1477
except errors.NoSuchFile:
1478
raise errors.NotBranchError(path=transport.base)
1481
return klass._formats[format_string]
1483
raise errors.UnknownFormatError(format=format_string, kind='bzrdir')
1486
def get_default_format(klass):
1487
"""Return the current default format."""
1488
return klass._default_format
1490
def get_format_string(self):
1491
"""Return the ASCII format string that identifies this format."""
1492
raise NotImplementedError(self.get_format_string)
1494
def get_format_description(self):
1495
"""Return the short description for this format."""
1496
raise NotImplementedError(self.get_format_description)
1498
def get_converter(self, format=None):
1499
"""Return the converter to use to convert bzrdirs needing converts.
1501
This returns a bzrlib.bzrdir.Converter object.
1503
This should return the best upgrader to step this format towards the
1504
current default format. In the case of plugins we can/should provide
1505
some means for them to extend the range of returnable converters.
1507
:param format: Optional format to override the default format of the
1510
raise NotImplementedError(self.get_converter)
1512
def initialize(self, url, possible_transports=None):
1513
"""Create a bzr control dir at this url and return an opened copy.
1515
Subclasses should typically override initialize_on_transport
1516
instead of this method.
1518
return self.initialize_on_transport(get_transport(url,
1519
possible_transports))
1521
def initialize_on_transport(self, transport):
1522
"""Initialize a new bzrdir in the base directory of a Transport."""
1523
# Since we don't have a .bzr directory, inherit the
1524
# mode from the root directory
1525
temp_control = lockable_files.LockableFiles(transport,
1526
'', lockable_files.TransportLock)
1527
temp_control._transport.mkdir('.bzr',
1528
# FIXME: RBC 20060121 don't peek under
1530
mode=temp_control._dir_mode)
1531
if sys.platform == 'win32' and isinstance(transport, LocalTransport):
1532
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
1533
file_mode = temp_control._file_mode
1535
mutter('created control directory in ' + transport.base)
1536
control = transport.clone('.bzr')
1537
utf8_files = [('README',
1538
"This is a Bazaar control directory.\n"
1539
"Do not change any files in this directory.\n"
1540
"See http://bazaar-vcs.org/ for more information about Bazaar.\n"),
1541
('branch-format', self.get_format_string()),
1543
# NB: no need to escape relative paths that are url safe.
1544
control_files = lockable_files.LockableFiles(control,
1545
self._lock_file_name, self._lock_class)
1546
control_files.create_lock()
1547
control_files.lock_write()
1549
for file, content in utf8_files:
1550
control_files.put_utf8(file, content)
1552
control_files.unlock()
1553
return self.open(transport, _found=True)
1555
def is_supported(self):
1556
"""Is this format supported?
1558
Supported formats must be initializable and openable.
1559
Unsupported formats may not support initialization or committing or
1560
some other features depending on the reason for not being supported.
1564
def same_model(self, target_format):
1565
return (self.repository_format.rich_root_data ==
1566
target_format.rich_root_data)
1569
def known_formats(klass):
1570
"""Return all the known formats.
1572
Concrete formats should override _known_formats.
1574
# There is double indirection here to make sure that control
1575
# formats used by more than one dir format will only be probed
1576
# once. This can otherwise be quite expensive for remote connections.
1578
for format in klass._control_formats:
1579
result.update(format._known_formats())
1583
def _known_formats(klass):
1584
"""Return the known format instances for this control format."""
1585
return set(klass._formats.values())
1587
def open(self, transport, _found=False):
1588
"""Return an instance of this format for the dir transport points at.
1590
_found is a private parameter, do not use it.
1593
found_format = BzrDirFormat.find_format(transport)
1594
if not isinstance(found_format, self.__class__):
1595
raise AssertionError("%s was asked to open %s, but it seems to need "
1597
% (self, transport, found_format))
1598
return self._open(transport)
1600
def _open(self, transport):
1601
"""Template method helper for opening BzrDirectories.
1603
This performs the actual open and any additional logic or parameter
1606
raise NotImplementedError(self._open)
1609
def register_format(klass, format):
1610
klass._formats[format.get_format_string()] = format
1613
def register_control_format(klass, format):
1614
"""Register a format that does not use '.bzr' for its control dir.
1616
TODO: This should be pulled up into a 'ControlDirFormat' base class
1617
which BzrDirFormat can inherit from, and renamed to register_format
1618
there. It has been done without that for now for simplicity of
1621
klass._control_formats.append(format)
1624
def register_control_server_format(klass, format):
1625
"""Register a control format for client-server environments.
1627
These formats will be tried before ones registered with
1628
register_control_format. This gives implementations that decide to the
1629
chance to grab it before anything looks at the contents of the format
1632
klass._control_server_formats.append(format)
1635
@symbol_versioning.deprecated_method(symbol_versioning.zero_fourteen)
1636
def set_default_format(klass, format):
1637
klass._set_default_format(format)
1640
def _set_default_format(klass, format):
1641
"""Set default format (for testing behavior of defaults only)"""
1642
klass._default_format = format
1646
return self.get_format_string().rstrip()
1649
def unregister_format(klass, format):
1650
assert klass._formats[format.get_format_string()] is format
1651
del klass._formats[format.get_format_string()]
1654
def unregister_control_format(klass, format):
1655
klass._control_formats.remove(format)
1658
class BzrDirFormat4(BzrDirFormat):
1659
"""Bzr dir format 4.
1661
This format is a combined format for working tree, branch and repository.
1663
- Format 1 working trees [always]
1664
- Format 4 branches [always]
1665
- Format 4 repositories [always]
1667
This format is deprecated: it indexes texts using a text it which is
1668
removed in format 5; write support for this format has been removed.
1671
_lock_class = lockable_files.TransportLock
1673
def get_format_string(self):
1674
"""See BzrDirFormat.get_format_string()."""
1675
return "Bazaar-NG branch, format 0.0.4\n"
1677
def get_format_description(self):
1678
"""See BzrDirFormat.get_format_description()."""
1679
return "All-in-one format 4"
1681
def get_converter(self, format=None):
1682
"""See BzrDirFormat.get_converter()."""
1683
# there is one and only one upgrade path here.
1684
return ConvertBzrDir4To5()
1686
def initialize_on_transport(self, transport):
1687
"""Format 4 branches cannot be created."""
1688
raise errors.UninitializableFormat(self)
1690
def is_supported(self):
1691
"""Format 4 is not supported.
1693
It is not supported because the model changed from 4 to 5 and the
1694
conversion logic is expensive - so doing it on the fly was not
1699
def _open(self, transport):
1700
"""See BzrDirFormat._open."""
1701
return BzrDir4(transport, self)
1703
def __return_repository_format(self):
1704
"""Circular import protection."""
1705
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1706
return RepositoryFormat4()
1707
repository_format = property(__return_repository_format)
1710
class BzrDirFormat5(BzrDirFormat):
1711
"""Bzr control format 5.
1713
This format is a combined format for working tree, branch and repository.
1715
- Format 2 working trees [always]
1716
- Format 4 branches [always]
1717
- Format 5 repositories [always]
1718
Unhashed stores in the repository.
1721
_lock_class = lockable_files.TransportLock
1723
def get_format_string(self):
1724
"""See BzrDirFormat.get_format_string()."""
1725
return "Bazaar-NG branch, format 5\n"
1727
def get_format_description(self):
1728
"""See BzrDirFormat.get_format_description()."""
1729
return "All-in-one format 5"
1731
def get_converter(self, format=None):
1732
"""See BzrDirFormat.get_converter()."""
1733
# there is one and only one upgrade path here.
1734
return ConvertBzrDir5To6()
1736
def _initialize_for_clone(self, url):
1737
return self.initialize_on_transport(get_transport(url), _cloning=True)
1739
def initialize_on_transport(self, transport, _cloning=False):
1740
"""Format 5 dirs always have working tree, branch and repository.
1742
Except when they are being cloned.
1744
from bzrlib.branch import BzrBranchFormat4
1745
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1746
from bzrlib.workingtree import WorkingTreeFormat2
1747
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1748
RepositoryFormat5().initialize(result, _internal=True)
1750
branch = BzrBranchFormat4().initialize(result)
1752
WorkingTreeFormat2().initialize(result)
1753
except errors.NotLocalUrl:
1754
# Even though we can't access the working tree, we need to
1755
# create its control files.
1756
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1759
def _open(self, transport):
1760
"""See BzrDirFormat._open."""
1761
return BzrDir5(transport, self)
1763
def __return_repository_format(self):
1764
"""Circular import protection."""
1765
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1766
return RepositoryFormat5()
1767
repository_format = property(__return_repository_format)
1770
class BzrDirFormat6(BzrDirFormat):
1771
"""Bzr control format 6.
1773
This format is a combined format for working tree, branch and repository.
1775
- Format 2 working trees [always]
1776
- Format 4 branches [always]
1777
- Format 6 repositories [always]
1780
_lock_class = lockable_files.TransportLock
1782
def get_format_string(self):
1783
"""See BzrDirFormat.get_format_string()."""
1784
return "Bazaar-NG branch, format 6\n"
1786
def get_format_description(self):
1787
"""See BzrDirFormat.get_format_description()."""
1788
return "All-in-one format 6"
1790
def get_converter(self, format=None):
1791
"""See BzrDirFormat.get_converter()."""
1792
# there is one and only one upgrade path here.
1793
return ConvertBzrDir6ToMeta()
1795
def _initialize_for_clone(self, url):
1796
return self.initialize_on_transport(get_transport(url), _cloning=True)
1798
def initialize_on_transport(self, transport, _cloning=False):
1799
"""Format 6 dirs always have working tree, branch and repository.
1801
Except when they are being cloned.
1803
from bzrlib.branch import BzrBranchFormat4
1804
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1805
from bzrlib.workingtree import WorkingTreeFormat2
1806
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1807
RepositoryFormat6().initialize(result, _internal=True)
1809
branch = BzrBranchFormat4().initialize(result)
1811
WorkingTreeFormat2().initialize(result)
1812
except errors.NotLocalUrl:
1813
# Even though we can't access the working tree, we need to
1814
# create its control files.
1815
WorkingTreeFormat2().stub_initialize_remote(branch.control_files)
1818
def _open(self, transport):
1819
"""See BzrDirFormat._open."""
1820
return BzrDir6(transport, self)
1822
def __return_repository_format(self):
1823
"""Circular import protection."""
1824
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1825
return RepositoryFormat6()
1826
repository_format = property(__return_repository_format)
1829
class BzrDirMetaFormat1(BzrDirFormat):
1830
"""Bzr meta control format 1
1832
This is the first format with split out working tree, branch and repository
1835
- Format 3 working trees [optional]
1836
- Format 5 branches [optional]
1837
- Format 7 repositories [optional]
1840
_lock_class = lockdir.LockDir
1843
self._workingtree_format = None
1844
self._branch_format = None
1846
def __eq__(self, other):
1847
if other.__class__ is not self.__class__:
1849
if other.repository_format != self.repository_format:
1851
if other.workingtree_format != self.workingtree_format:
1855
def __ne__(self, other):
1856
return not self == other
1858
def get_branch_format(self):
1859
if self._branch_format is None:
1860
from bzrlib.branch import BranchFormat
1861
self._branch_format = BranchFormat.get_default_format()
1862
return self._branch_format
1864
def set_branch_format(self, format):
1865
self._branch_format = format
1867
def get_converter(self, format=None):
1868
"""See BzrDirFormat.get_converter()."""
1870
format = BzrDirFormat.get_default_format()
1871
if not isinstance(self, format.__class__):
1872
# converting away from metadir is not implemented
1873
raise NotImplementedError(self.get_converter)
1874
return ConvertMetaToMeta(format)
1876
def get_format_string(self):
1877
"""See BzrDirFormat.get_format_string()."""
1878
return "Bazaar-NG meta directory, format 1\n"
1880
def get_format_description(self):
1881
"""See BzrDirFormat.get_format_description()."""
1882
return "Meta directory format 1"
1884
def _open(self, transport):
1885
"""See BzrDirFormat._open."""
1886
return BzrDirMeta1(transport, self)
1888
def __return_repository_format(self):
1889
"""Circular import protection."""
1890
if getattr(self, '_repository_format', None):
1891
return self._repository_format
1892
from bzrlib.repository import RepositoryFormat
1893
return RepositoryFormat.get_default_format()
1895
def __set_repository_format(self, value):
1896
"""Allow changing the repository format for metadir formats."""
1897
self._repository_format = value
1899
repository_format = property(__return_repository_format, __set_repository_format)
1901
def __get_workingtree_format(self):
1902
if self._workingtree_format is None:
1903
from bzrlib.workingtree import WorkingTreeFormat
1904
self._workingtree_format = WorkingTreeFormat.get_default_format()
1905
return self._workingtree_format
1907
def __set_workingtree_format(self, wt_format):
1908
self._workingtree_format = wt_format
1910
workingtree_format = property(__get_workingtree_format,
1911
__set_workingtree_format)
1914
# Register bzr control format
1915
BzrDirFormat.register_control_format(BzrDirFormat)
1917
# Register bzr formats
1918
BzrDirFormat.register_format(BzrDirFormat4())
1919
BzrDirFormat.register_format(BzrDirFormat5())
1920
BzrDirFormat.register_format(BzrDirFormat6())
1921
__default_format = BzrDirMetaFormat1()
1922
BzrDirFormat.register_format(__default_format)
1923
BzrDirFormat._default_format = __default_format
1926
class Converter(object):
1927
"""Converts a disk format object from one format to another."""
1929
def convert(self, to_convert, pb):
1930
"""Perform the conversion of to_convert, giving feedback via pb.
1932
:param to_convert: The disk object to convert.
1933
:param pb: a progress bar to use for progress information.
1936
def step(self, message):
1937
"""Update the pb by a step."""
1939
self.pb.update(message, self.count, self.total)
1942
class ConvertBzrDir4To5(Converter):
1943
"""Converts format 4 bzr dirs to format 5."""
1946
super(ConvertBzrDir4To5, self).__init__()
1947
self.converted_revs = set()
1948
self.absent_revisions = set()
1952
def convert(self, to_convert, pb):
1953
"""See Converter.convert()."""
1954
self.bzrdir = to_convert
1956
self.pb.note('starting upgrade from format 4 to 5')
1957
if isinstance(self.bzrdir.transport, LocalTransport):
1958
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
1959
self._convert_to_weaves()
1960
return BzrDir.open(self.bzrdir.root_transport.base)
1962
def _convert_to_weaves(self):
1963
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
1966
stat = self.bzrdir.transport.stat('weaves')
1967
if not S_ISDIR(stat.st_mode):
1968
self.bzrdir.transport.delete('weaves')
1969
self.bzrdir.transport.mkdir('weaves')
1970
except errors.NoSuchFile:
1971
self.bzrdir.transport.mkdir('weaves')
1972
# deliberately not a WeaveFile as we want to build it up slowly.
1973
self.inv_weave = Weave('inventory')
1974
# holds in-memory weaves for all files
1975
self.text_weaves = {}
1976
self.bzrdir.transport.delete('branch-format')
1977
self.branch = self.bzrdir.open_branch()
1978
self._convert_working_inv()
1979
rev_history = self.branch.revision_history()
1980
# to_read is a stack holding the revisions we still need to process;
1981
# appending to it adds new highest-priority revisions
1982
self.known_revisions = set(rev_history)
1983
self.to_read = rev_history[-1:]
1985
rev_id = self.to_read.pop()
1986
if (rev_id not in self.revisions
1987
and rev_id not in self.absent_revisions):
1988
self._load_one_rev(rev_id)
1990
to_import = self._make_order()
1991
for i, rev_id in enumerate(to_import):
1992
self.pb.update('converting revision', i, len(to_import))
1993
self._convert_one_rev(rev_id)
1995
self._write_all_weaves()
1996
self._write_all_revs()
1997
self.pb.note('upgraded to weaves:')
1998
self.pb.note(' %6d revisions and inventories', len(self.revisions))
1999
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
2000
self.pb.note(' %6d texts', self.text_count)
2001
self._cleanup_spare_files_after_format4()
2002
self.branch.control_files.put_utf8('branch-format', BzrDirFormat5().get_format_string())
2004
def _cleanup_spare_files_after_format4(self):
2005
# FIXME working tree upgrade foo.
2006
for n in 'merged-patches', 'pending-merged-patches':
2008
## assert os.path.getsize(p) == 0
2009
self.bzrdir.transport.delete(n)
2010
except errors.NoSuchFile:
2012
self.bzrdir.transport.delete_tree('inventory-store')
2013
self.bzrdir.transport.delete_tree('text-store')
2015
def _convert_working_inv(self):
2016
inv = xml4.serializer_v4.read_inventory(
2017
self.branch.control_files.get('inventory'))
2018
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv, working=True)
2019
# FIXME inventory is a working tree change.
2020
self.branch.control_files.put('inventory', StringIO(new_inv_xml))
2022
def _write_all_weaves(self):
2023
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
2024
weave_transport = self.bzrdir.transport.clone('weaves')
2025
weaves = WeaveStore(weave_transport, prefixed=False)
2026
transaction = WriteTransaction()
2030
for file_id, file_weave in self.text_weaves.items():
2031
self.pb.update('writing weave', i, len(self.text_weaves))
2032
weaves._put_weave(file_id, file_weave, transaction)
2034
self.pb.update('inventory', 0, 1)
2035
controlweaves._put_weave('inventory', self.inv_weave, transaction)
2036
self.pb.update('inventory', 1, 1)
2040
def _write_all_revs(self):
2041
"""Write all revisions out in new form."""
2042
self.bzrdir.transport.delete_tree('revision-store')
2043
self.bzrdir.transport.mkdir('revision-store')
2044
revision_transport = self.bzrdir.transport.clone('revision-store')
2046
_revision_store = TextRevisionStore(TextStore(revision_transport,
2050
transaction = WriteTransaction()
2051
for i, rev_id in enumerate(self.converted_revs):
2052
self.pb.update('write revision', i, len(self.converted_revs))
2053
_revision_store.add_revision(self.revisions[rev_id], transaction)
2057
def _load_one_rev(self, rev_id):
2058
"""Load a revision object into memory.
2060
Any parents not either loaded or abandoned get queued to be
2062
self.pb.update('loading revision',
2063
len(self.revisions),
2064
len(self.known_revisions))
2065
if not self.branch.repository.has_revision(rev_id):
2067
self.pb.note('revision {%s} not present in branch; '
2068
'will be converted as a ghost',
2070
self.absent_revisions.add(rev_id)
2072
rev = self.branch.repository._revision_store.get_revision(rev_id,
2073
self.branch.repository.get_transaction())
2074
for parent_id in rev.parent_ids:
2075
self.known_revisions.add(parent_id)
2076
self.to_read.append(parent_id)
2077
self.revisions[rev_id] = rev
2079
def _load_old_inventory(self, rev_id):
2080
assert rev_id not in self.converted_revs
2081
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
2082
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
2083
inv.revision_id = rev_id
2084
rev = self.revisions[rev_id]
2085
if rev.inventory_sha1:
2086
assert rev.inventory_sha1 == sha_string(old_inv_xml), \
2087
'inventory sha mismatch for {%s}' % rev_id
2090
def _load_updated_inventory(self, rev_id):
2091
assert rev_id in self.converted_revs
2092
inv_xml = self.inv_weave.get_text(rev_id)
2093
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml, rev_id)
2096
def _convert_one_rev(self, rev_id):
2097
"""Convert revision and all referenced objects to new format."""
2098
rev = self.revisions[rev_id]
2099
inv = self._load_old_inventory(rev_id)
2100
present_parents = [p for p in rev.parent_ids
2101
if p not in self.absent_revisions]
2102
self._convert_revision_contents(rev, inv, present_parents)
2103
self._store_new_inv(rev, inv, present_parents)
2104
self.converted_revs.add(rev_id)
2106
def _store_new_inv(self, rev, inv, present_parents):
2107
# the XML is now updated with text versions
2109
entries = inv.iter_entries()
2111
for path, ie in entries:
2112
assert getattr(ie, 'revision', None) is not None, \
2113
'no revision on {%s} in {%s}' % \
2114
(file_id, rev.revision_id)
2115
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
2116
new_inv_sha1 = sha_string(new_inv_xml)
2117
self.inv_weave.add_lines(rev.revision_id,
2119
new_inv_xml.splitlines(True))
2120
rev.inventory_sha1 = new_inv_sha1
2122
def _convert_revision_contents(self, rev, inv, present_parents):
2123
"""Convert all the files within a revision.
2125
Also upgrade the inventory to refer to the text revision ids."""
2126
rev_id = rev.revision_id
2127
mutter('converting texts of revision {%s}',
2129
parent_invs = map(self._load_updated_inventory, present_parents)
2130
entries = inv.iter_entries()
2132
for path, ie in entries:
2133
self._convert_file_version(rev, ie, parent_invs)
2135
def _convert_file_version(self, rev, ie, parent_invs):
2136
"""Convert one version of one file.
2138
The file needs to be added into the weave if it is a merge
2139
of >=2 parents or if it's changed from its parent.
2141
file_id = ie.file_id
2142
rev_id = rev.revision_id
2143
w = self.text_weaves.get(file_id)
2146
self.text_weaves[file_id] = w
2147
text_changed = False
2148
parent_candiate_entries = ie.parent_candidates(parent_invs)
2149
for old_revision in parent_candiate_entries.keys():
2150
# if this fails, its a ghost ?
2151
assert old_revision in self.converted_revs, \
2152
"Revision {%s} not in converted_revs" % old_revision
2153
heads = graph.Graph(self).heads(parent_candiate_entries.keys())
2154
# XXX: Note that this is unordered - and this is tolerable because
2155
# the previous code was also unordered.
2156
previous_entries = dict((head, parent_candiate_entries[head]) for head
2158
self.snapshot_ie(previous_entries, ie, w, rev_id)
2160
assert getattr(ie, 'revision', None) is not None
2162
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
2163
def get_parents(self, revision_ids):
2164
for revision_id in revision_ids:
2165
yield self.revisions[revision_id].parent_ids
2167
def get_parent_map(self, revision_ids):
2168
"""See graph._StackedParentsProvider.get_parent_map"""
2169
return dict((revision_id, self.revisions[revision_id])
2170
for revision_id in revision_ids
2171
if revision_id in self.revisions)
2173
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
2174
# TODO: convert this logic, which is ~= snapshot to
2175
# a call to:. This needs the path figured out. rather than a work_tree
2176
# a v4 revision_tree can be given, or something that looks enough like
2177
# one to give the file content to the entry if it needs it.
2178
# and we need something that looks like a weave store for snapshot to
2180
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
2181
if len(previous_revisions) == 1:
2182
previous_ie = previous_revisions.values()[0]
2183
if ie._unchanged(previous_ie):
2184
ie.revision = previous_ie.revision
2187
text = self.branch.repository.weave_store.get(ie.text_id)
2188
file_lines = text.readlines()
2189
assert sha_strings(file_lines) == ie.text_sha1
2190
assert sum(map(len, file_lines)) == ie.text_size
2191
w.add_lines(rev_id, previous_revisions, file_lines)
2192
self.text_count += 1
2194
w.add_lines(rev_id, previous_revisions, [])
2195
ie.revision = rev_id
2197
def _make_order(self):
2198
"""Return a suitable order for importing revisions.
2200
The order must be such that an revision is imported after all
2201
its (present) parents.
2203
todo = set(self.revisions.keys())
2204
done = self.absent_revisions.copy()
2207
# scan through looking for a revision whose parents
2209
for rev_id in sorted(list(todo)):
2210
rev = self.revisions[rev_id]
2211
parent_ids = set(rev.parent_ids)
2212
if parent_ids.issubset(done):
2213
# can take this one now
2214
order.append(rev_id)
2220
class ConvertBzrDir5To6(Converter):
2221
"""Converts format 5 bzr dirs to format 6."""
2223
def convert(self, to_convert, pb):
2224
"""See Converter.convert()."""
2225
self.bzrdir = to_convert
2227
self.pb.note('starting upgrade from format 5 to 6')
2228
self._convert_to_prefixed()
2229
return BzrDir.open(self.bzrdir.root_transport.base)
2231
def _convert_to_prefixed(self):
2232
from bzrlib.store import TransportStore
2233
self.bzrdir.transport.delete('branch-format')
2234
for store_name in ["weaves", "revision-store"]:
2235
self.pb.note("adding prefixes to %s" % store_name)
2236
store_transport = self.bzrdir.transport.clone(store_name)
2237
store = TransportStore(store_transport, prefixed=True)
2238
for urlfilename in store_transport.list_dir('.'):
2239
filename = urlutils.unescape(urlfilename)
2240
if (filename.endswith(".weave") or
2241
filename.endswith(".gz") or
2242
filename.endswith(".sig")):
2243
file_id = os.path.splitext(filename)[0]
2246
prefix_dir = store.hash_prefix(file_id)
2247
# FIXME keep track of the dirs made RBC 20060121
2249
store_transport.move(filename, prefix_dir + '/' + filename)
2250
except errors.NoSuchFile: # catches missing dirs strangely enough
2251
store_transport.mkdir(prefix_dir)
2252
store_transport.move(filename, prefix_dir + '/' + filename)
2253
self.bzrdir._control_files.put_utf8('branch-format', BzrDirFormat6().get_format_string())
2256
class ConvertBzrDir6ToMeta(Converter):
2257
"""Converts format 6 bzr dirs to metadirs."""
2259
def convert(self, to_convert, pb):
2260
"""See Converter.convert()."""
2261
from bzrlib.repofmt.weaverepo import RepositoryFormat7
2262
from bzrlib.branch import BzrBranchFormat5
2263
self.bzrdir = to_convert
2266
self.total = 20 # the steps we know about
2267
self.garbage_inventories = []
2269
self.pb.note('starting upgrade from format 6 to metadir')
2270
self.bzrdir._control_files.put_utf8('branch-format', "Converting to format 6")
2271
# its faster to move specific files around than to open and use the apis...
2272
# first off, nuke ancestry.weave, it was never used.
2274
self.step('Removing ancestry.weave')
2275
self.bzrdir.transport.delete('ancestry.weave')
2276
except errors.NoSuchFile:
2278
# find out whats there
2279
self.step('Finding branch files')
2280
last_revision = self.bzrdir.open_branch().last_revision()
2281
bzrcontents = self.bzrdir.transport.list_dir('.')
2282
for name in bzrcontents:
2283
if name.startswith('basis-inventory.'):
2284
self.garbage_inventories.append(name)
2285
# create new directories for repository, working tree and branch
2286
self.dir_mode = self.bzrdir._control_files._dir_mode
2287
self.file_mode = self.bzrdir._control_files._file_mode
2288
repository_names = [('inventory.weave', True),
2289
('revision-store', True),
2291
self.step('Upgrading repository ')
2292
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2293
self.make_lock('repository')
2294
# we hard code the formats here because we are converting into
2295
# the meta format. The meta format upgrader can take this to a
2296
# future format within each component.
2297
self.put_format('repository', RepositoryFormat7())
2298
for entry in repository_names:
2299
self.move_entry('repository', entry)
2301
self.step('Upgrading branch ')
2302
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2303
self.make_lock('branch')
2304
self.put_format('branch', BzrBranchFormat5())
2305
branch_files = [('revision-history', True),
2306
('branch-name', True),
2308
for entry in branch_files:
2309
self.move_entry('branch', entry)
2311
checkout_files = [('pending-merges', True),
2312
('inventory', True),
2313
('stat-cache', False)]
2314
# If a mandatory checkout file is not present, the branch does not have
2315
# a functional checkout. Do not create a checkout in the converted
2317
for name, mandatory in checkout_files:
2318
if mandatory and name not in bzrcontents:
2319
has_checkout = False
2323
if not has_checkout:
2324
self.pb.note('No working tree.')
2325
# If some checkout files are there, we may as well get rid of them.
2326
for name, mandatory in checkout_files:
2327
if name in bzrcontents:
2328
self.bzrdir.transport.delete(name)
2330
from bzrlib.workingtree import WorkingTreeFormat3
2331
self.step('Upgrading working tree')
2332
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2333
self.make_lock('checkout')
2335
'checkout', WorkingTreeFormat3())
2336
self.bzrdir.transport.delete_multi(
2337
self.garbage_inventories, self.pb)
2338
for entry in checkout_files:
2339
self.move_entry('checkout', entry)
2340
if last_revision is not None:
2341
self.bzrdir._control_files.put_utf8(
2342
'checkout/last-revision', last_revision)
2343
self.bzrdir._control_files.put_utf8(
2344
'branch-format', BzrDirMetaFormat1().get_format_string())
2345
return BzrDir.open(self.bzrdir.root_transport.base)
2347
def make_lock(self, name):
2348
"""Make a lock for the new control dir name."""
2349
self.step('Make %s lock' % name)
2350
ld = lockdir.LockDir(self.bzrdir.transport,
2352
file_modebits=self.file_mode,
2353
dir_modebits=self.dir_mode)
2356
def move_entry(self, new_dir, entry):
2357
"""Move then entry name into new_dir."""
2359
mandatory = entry[1]
2360
self.step('Moving %s' % name)
2362
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2363
except errors.NoSuchFile:
2367
def put_format(self, dirname, format):
2368
self.bzrdir._control_files.put_utf8('%s/format' % dirname, format.get_format_string())
2371
class ConvertMetaToMeta(Converter):
2372
"""Converts the components of metadirs."""
2374
def __init__(self, target_format):
2375
"""Create a metadir to metadir converter.
2377
:param target_format: The final metadir format that is desired.
2379
self.target_format = target_format
2381
def convert(self, to_convert, pb):
2382
"""See Converter.convert()."""
2383
self.bzrdir = to_convert
2387
self.step('checking repository format')
2389
repo = self.bzrdir.open_repository()
2390
except errors.NoRepositoryPresent:
2393
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2394
from bzrlib.repository import CopyConverter
2395
self.pb.note('starting repository conversion')
2396
converter = CopyConverter(self.target_format.repository_format)
2397
converter.convert(repo, pb)
2399
branch = self.bzrdir.open_branch()
2400
except errors.NotBranchError:
2403
# TODO: conversions of Branch and Tree should be done by
2404
# InterXFormat lookups
2405
# Avoid circular imports
2406
from bzrlib import branch as _mod_branch
2407
if (branch._format.__class__ is _mod_branch.BzrBranchFormat5 and
2408
self.target_format.get_branch_format().__class__ is
2409
_mod_branch.BzrBranchFormat6):
2410
branch_converter = _mod_branch.Converter5to6()
2411
branch_converter.convert(branch)
2413
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2414
except (errors.NoWorkingTree, errors.NotLocalUrl):
2417
# TODO: conversions of Branch and Tree should be done by
2418
# InterXFormat lookups
2419
if (isinstance(tree, workingtree.WorkingTree3) and
2420
not isinstance(tree, workingtree_4.WorkingTree4) and
2421
isinstance(self.target_format.workingtree_format,
2422
workingtree_4.WorkingTreeFormat4)):
2423
workingtree_4.Converter3to4().convert(tree)
2427
# This is not in remote.py because it's small, and needs to be registered.
2428
# Putting it in remote.py creates a circular import problem.
2429
# we can make it a lazy object if the control formats is turned into something
2431
class RemoteBzrDirFormat(BzrDirMetaFormat1):
2432
"""Format representing bzrdirs accessed via a smart server"""
2434
def get_format_description(self):
2435
return 'bzr remote bzrdir'
2438
def probe_transport(klass, transport):
2439
"""Return a RemoteBzrDirFormat object if it looks possible."""
2441
medium = transport.get_smart_medium()
2442
except (NotImplementedError, AttributeError,
2443
errors.TransportNotPossible, errors.NoSmartMedium):
2444
# no smart server, so not a branch for this format type.
2445
raise errors.NotBranchError(path=transport.base)
2447
# Decline to open it if the server doesn't support our required
2448
# version (2) so that the VFS-based transport will do it.
2450
server_version = medium.protocol_version()
2451
except errors.SmartProtocolError:
2452
# Apparently there's no usable smart server there, even though
2453
# the medium supports the smart protocol.
2454
raise errors.NotBranchError(path=transport.base)
2455
if server_version != 2:
2456
raise errors.NotBranchError(path=transport.base)
2459
def initialize_on_transport(self, transport):
2461
# hand off the request to the smart server
2462
client_medium = transport.get_smart_medium()
2463
except errors.NoSmartMedium:
2464
# TODO: lookup the local format from a server hint.
2465
local_dir_format = BzrDirMetaFormat1()
2466
return local_dir_format.initialize_on_transport(transport)
2467
client = _SmartClient(client_medium, transport.base)
2468
path = client.remote_path_from_transport(transport)
2469
response = client.call('BzrDirFormat.initialize', path)
2470
assert response[0] in ('ok', ), 'unexpected response code %s' % (response,)
2471
return remote.RemoteBzrDir(transport)
2473
def _open(self, transport):
2474
return remote.RemoteBzrDir(transport)
2476
def __eq__(self, other):
2477
if not isinstance(other, RemoteBzrDirFormat):
2479
return self.get_format_description() == other.get_format_description()
2482
BzrDirFormat.register_control_server_format(RemoteBzrDirFormat)
2485
class BzrDirFormatInfo(object):
2487
def __init__(self, native, deprecated, hidden, experimental):
2488
self.deprecated = deprecated
2489
self.native = native
2490
self.hidden = hidden
2491
self.experimental = experimental
2494
class BzrDirFormatRegistry(registry.Registry):
2495
"""Registry of user-selectable BzrDir subformats.
2497
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2498
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2502
"""Create a BzrDirFormatRegistry."""
2503
self._aliases = set()
2504
super(BzrDirFormatRegistry, self).__init__()
2507
"""Return a set of the format names which are aliases."""
2508
return frozenset(self._aliases)
2510
def register_metadir(self, key,
2511
repository_format, help, native=True, deprecated=False,
2517
"""Register a metadir subformat.
2519
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2520
by the Repository format.
2522
:param repository_format: The fully-qualified repository format class
2524
:param branch_format: Fully-qualified branch format class name as
2526
:param tree_format: Fully-qualified tree format class name as
2529
# This should be expanded to support setting WorkingTree and Branch
2530
# formats, once BzrDirMetaFormat1 supports that.
2531
def _load(full_name):
2532
mod_name, factory_name = full_name.rsplit('.', 1)
2534
mod = __import__(mod_name, globals(), locals(),
2536
except ImportError, e:
2537
raise ImportError('failed to load %s: %s' % (full_name, e))
2539
factory = getattr(mod, factory_name)
2540
except AttributeError:
2541
raise AttributeError('no factory %s in module %r'
2546
bd = BzrDirMetaFormat1()
2547
if branch_format is not None:
2548
bd.set_branch_format(_load(branch_format))
2549
if tree_format is not None:
2550
bd.workingtree_format = _load(tree_format)
2551
if repository_format is not None:
2552
bd.repository_format = _load(repository_format)
2554
self.register(key, helper, help, native, deprecated, hidden,
2555
experimental, alias)
2557
def register(self, key, factory, help, native=True, deprecated=False,
2558
hidden=False, experimental=False, alias=False):
2559
"""Register a BzrDirFormat factory.
2561
The factory must be a callable that takes one parameter: the key.
2562
It must produce an instance of the BzrDirFormat when called.
2564
This function mainly exists to prevent the info object from being
2567
registry.Registry.register(self, key, factory, help,
2568
BzrDirFormatInfo(native, deprecated, hidden, experimental))
2570
self._aliases.add(key)
2572
def register_lazy(self, key, module_name, member_name, help, native=True,
2573
deprecated=False, hidden=False, experimental=False, alias=False):
2574
registry.Registry.register_lazy(self, key, module_name, member_name,
2575
help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
2577
self._aliases.add(key)
2579
def set_default(self, key):
2580
"""Set the 'default' key to be a clone of the supplied key.
2582
This method must be called once and only once.
2584
registry.Registry.register(self, 'default', self.get(key),
2585
self.get_help(key), info=self.get_info(key))
2586
self._aliases.add('default')
2588
def set_default_repository(self, key):
2589
"""Set the FormatRegistry default and Repository default.
2591
This is a transitional method while Repository.set_default_format
2594
if 'default' in self:
2595
self.remove('default')
2596
self.set_default(key)
2597
format = self.get('default')()
2598
assert isinstance(format, BzrDirMetaFormat1)
2600
def make_bzrdir(self, key):
2601
return self.get(key)()
2603
def help_topic(self, topic):
2604
output = textwrap.dedent("""\
2605
These formats can be used for creating branches, working trees, and
2609
default_realkey = None
2610
default_help = self.get_help('default')
2612
for key in self.keys():
2613
if key == 'default':
2615
help = self.get_help(key)
2616
if help == default_help:
2617
default_realkey = key
2619
help_pairs.append((key, help))
2621
def wrapped(key, help, info):
2623
help = '(native) ' + help
2624
return ':%s:\n%s\n\n' % (key,
2625
textwrap.fill(help, initial_indent=' ',
2626
subsequent_indent=' '))
2627
if default_realkey is not None:
2628
output += wrapped(default_realkey, '(default) %s' % default_help,
2629
self.get_info('default'))
2630
deprecated_pairs = []
2631
experimental_pairs = []
2632
for key, help in help_pairs:
2633
info = self.get_info(key)
2636
elif info.deprecated:
2637
deprecated_pairs.append((key, help))
2638
elif info.experimental:
2639
experimental_pairs.append((key, help))
2641
output += wrapped(key, help, info)
2642
if len(experimental_pairs) > 0:
2643
output += "Experimental formats are shown below.\n\n"
2644
for key, help in experimental_pairs:
2645
info = self.get_info(key)
2646
output += wrapped(key, help, info)
2647
if len(deprecated_pairs) > 0:
2648
output += "Deprecated formats are shown below.\n\n"
2649
for key, help in deprecated_pairs:
2650
info = self.get_info(key)
2651
output += wrapped(key, help, info)
2656
class RepositoryAcquisitionPolicy(object):
2657
"""Abstract base class for repository acquisition policies.
2659
A repository acquisition policy decides how a BzrDir acquires a repository
2660
for a branch that is being created. The most basic policy decision is
2661
whether to create a new repository or use an existing one.
2664
def configure_branch(self, branch):
2665
"""Apply any configuration data from this policy to the branch.
2667
Default implementation does nothing.
2671
def acquire_repository(self, make_working_trees=None, shared=False):
2672
"""Acquire a repository for this bzrdir.
2674
Implementations may create a new repository or use a pre-exising
2676
:param make_working_trees: If creating a repository, set
2677
make_working_trees to this value (if non-None)
2678
:param shared: If creating a repository, make it shared if True
2679
:return: A repository
2681
raise NotImplemented(RepositoryAcquisitionPolicy.acquire_repository)
2684
class CreateRepository(RepositoryAcquisitionPolicy):
2685
"""A policy of creating a new repository"""
2687
def __init__(self, bzrdir):
2688
RepositoryAcquisitionPolicy.__init__(self)
2689
self._bzrdir = bzrdir
2691
def acquire_repository(self, make_working_trees=None, shared=False):
2692
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2694
Creates the desired repository in the bzrdir we already have.
2696
repository = self._bzrdir.create_repository(shared=shared)
2697
if make_working_trees is not None:
2698
repository.set_make_working_trees(make_working_trees)
2702
class UseExistingRepository(RepositoryAcquisitionPolicy):
2703
"""A policy of reusing an existing repository"""
2705
def __init__(self, repository):
2706
RepositoryAcquisitionPolicy.__init__(self)
2707
self._repository = repository
2709
def acquire_repository(self, make_working_trees=None, shared=False):
2710
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2712
Returns an existing repository to use
2714
return self._repository
2717
format_registry = BzrDirFormatRegistry()
2718
format_registry.register('weave', BzrDirFormat6,
2719
'Pre-0.8 format. Slower than knit and does not'
2720
' support checkouts or shared repositories.',
2722
format_registry.register_metadir('knit',
2723
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2724
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2725
branch_format='bzrlib.branch.BzrBranchFormat5',
2726
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2727
format_registry.register_metadir('metaweave',
2728
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2729
'Transitional format in 0.8. Slower than knit.',
2730
branch_format='bzrlib.branch.BzrBranchFormat5',
2731
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2733
format_registry.register_metadir('dirstate',
2734
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2735
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2736
'above when accessed over the network.',
2737
branch_format='bzrlib.branch.BzrBranchFormat5',
2738
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2739
# directly from workingtree_4 triggers a circular import.
2740
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2742
format_registry.register_metadir('dirstate-tags',
2743
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2744
help='New in 0.15: Fast local operations and improved scaling for '
2745
'network operations. Additionally adds support for tags.'
2746
' Incompatible with bzr < 0.15.',
2747
branch_format='bzrlib.branch.BzrBranchFormat6',
2748
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2750
format_registry.register_metadir('rich-root',
2751
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
2752
help='New in 1.0. Better handling of tree roots. Incompatible with'
2754
branch_format='bzrlib.branch.BzrBranchFormat6',
2755
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2757
format_registry.register_metadir('dirstate-with-subtree',
2758
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2759
help='New in 0.15: Fast local operations and improved scaling for '
2760
'network operations. Additionally adds support for versioning nested '
2761
'bzr branches. Incompatible with bzr < 0.15.',
2762
branch_format='bzrlib.branch.BzrBranchFormat6',
2763
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2767
format_registry.register_metadir('pack-0.92',
2768
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack1',
2769
help='New in 0.92: Pack-based format with data compatible with '
2770
'dirstate-tags format repositories. Interoperates with '
2771
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
2772
'Previously called knitpack-experimental. '
2773
'For more information, see '
2774
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
2775
branch_format='bzrlib.branch.BzrBranchFormat6',
2776
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2778
format_registry.register_metadir('pack-0.92-subtree',
2779
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack3',
2780
help='New in 0.92: Pack-based format with data compatible with '
2781
'dirstate-with-subtree format repositories. Interoperates with '
2782
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
2783
'Previously called knitpack-experimental. '
2784
'For more information, see '
2785
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
2786
branch_format='bzrlib.branch.BzrBranchFormat6',
2787
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2791
format_registry.register_metadir('rich-root-pack',
2792
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack4',
2793
help='New in 1.0: Pack-based format with data compatible with '
2794
'rich-root format repositories. Incompatible with'
2796
branch_format='bzrlib.branch.BzrBranchFormat6',
2797
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2799
# The following two formats should always just be aliases.
2800
format_registry.register_metadir('development',
2801
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0',
2802
help='Current development format. Can convert data to and from pack-0.92 '
2803
'(and anything compatible with pack-0.92) format repositories. '
2804
'Repositories in this format can only be read by bzr.dev. '
2806
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
2808
branch_format='bzrlib.branch.BzrBranchFormat6',
2809
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2813
format_registry.register_metadir('development-subtree',
2814
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0Subtree',
2815
help='Current development format, subtree variant. Can convert data to and '
2816
'from pack-0.92 (and anything compatible with pack-0.92) format '
2817
'repositories. Repositories in this format can only be read by '
2818
'bzr.dev. Please read '
2819
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
2821
branch_format='bzrlib.branch.BzrBranchFormat6',
2822
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2826
# And the development formats which the will have aliased one of follow:
2827
format_registry.register_metadir('development0',
2828
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0',
2829
help='Trivial rename of pack-0.92 to provide a development format. '
2831
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
2833
branch_format='bzrlib.branch.BzrBranchFormat6',
2834
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2838
format_registry.register_metadir('development0-subtree',
2839
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0Subtree',
2840
help='Trivial rename of pack-0.92-subtree to provide a development format. '
2842
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
2844
branch_format='bzrlib.branch.BzrBranchFormat6',
2845
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2849
format_registry.set_default('pack-0.92')
added
removed
bzrlib/bzrdir.py
