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# Copyright (C) 2005, 2006, 2007, 2008 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.repository import Repository
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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.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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Everything in the bzrdir should have the same file permissions.
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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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preserve_stacking=False):
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"""Clone this bzrdir and its contents to url verbatim.
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:param url: The url create the clone at. If url's last component does
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not exist, it will be created.
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:param revision_id: The tip revision-id to use for any branch or
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working tree. If 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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:param preserve_stacking: When cloning a stacked branch, stack the
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new branch on top of the other branch's stacked-on branch.
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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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preserve_stacking=preserve_stacking)
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def clone_on_transport(self, transport, revision_id=None,
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force_new_repo=False, preserve_stacking=False):
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"""Clone this bzrdir and its contents to transport verbatim.
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:param transport: The transport for the location to produce the clone
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at. If the target directory does not exist, it will be created.
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:param revision_id: The tip revision-id to use for any branch or
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working tree. If 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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:param preserve_stacking: When cloning a stacked branch, stack the
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new branch on top of the other branch's stacked-on branch.
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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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local_branch = self.open_branch()
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except errors.NotBranchError:
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# enable fallbacks when branch is not a branch reference
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if local_branch.repository.has_same_location(local_repo):
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local_repo = local_branch.repository
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if preserve_stacking:
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stack_on = local_branch.get_stacked_on_url()
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except (errors.UnstackableBranchFormat,
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errors.UnstackableRepositoryFormat,
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# may need to copy content in
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repository_policy = result.determine_repository_policy(
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force_new_repo, stack_on, self.root_transport.base)
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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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if local_branch is not None:
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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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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, stack_on=None,
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stack_on_pwd=None, require_stacking=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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If stack_on is supplied, will not seek a containing shared repo.
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:param force_new_repo: If True, require a new repository to be created.
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:param stack_on: If supplied, the location to stack on. If not
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supplied, a default_stack_on location may be used.
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:param stack_on_pwd: If stack_on is relative, the location it is
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def repository_policy(found_bzrdir):
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config = found_bzrdir.get_config()
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if config is not None:
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stack_on = config.get_default_stack_on()
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if stack_on is not None:
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stack_on_pwd = found_bzrdir.root_transport.base
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note('Using default stacking branch %s at %s', stack_on,
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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, stack_on,
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stack_on_pwd, require_stacking=require_stacking), True
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return CreateRepository(self, stack_on, stack_on_pwd,
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require_stacking=require_stacking), 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 UseExistingRepository(self.open_repository(),
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stack_on, stack_on_pwd,
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require_stacking=require_stacking)
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except errors.NoRepositoryPresent:
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return CreateRepository(self, stack_on, stack_on_pwd,
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require_stacking=require_stacking)
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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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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 _find_creation_modes(self):
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"""Determine the appropriate modes for files and directories.
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They're always set to be consistent with the base directory,
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assuming that this transport allows setting modes.
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# TODO: Do we need or want an option (maybe a config setting) to turn
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# this off or override it for particular locations? -- mbp 20080512
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if self._mode_check_done:
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self._mode_check_done = True
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st = self.transport.stat('.')
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except errors.TransportNotPossible:
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self._dir_mode = None
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self._file_mode = None
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# Check the directory mode, but also make sure the created
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# directories and files are read-write for this user. This is
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# mostly a workaround for filesystems which lie about being able to
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# write to a directory (cygwin & win32)
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if (st.st_mode & 07777 == 00000):
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# FTP allows stat but does not return dir/file modes
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self._dir_mode = None
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self._file_mode = None
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self._dir_mode = (st.st_mode & 07777) | 00700
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# Remove the sticky and execute bits for files
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self._file_mode = self._dir_mode & ~07111
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def _get_file_mode(self):
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"""Return Unix mode for newly created files, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._file_mode
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def _get_dir_mode(self):
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"""Return Unix mode for newly created directories, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._dir_mode
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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 get_config(self):
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if getattr(self, '_get_config', None) is None:
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return self._get_config()
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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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self._mode_check_done = False
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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)
769
return BzrDir.open_from_transport(t, _unsupported=_unsupported)
772
def open_from_transport(transport, _unsupported=False,
773
_server_formats=True):
774
"""Open a bzrdir within a particular directory.
776
:param transport: Transport containing the bzrdir.
777
:param _unsupported: private.
779
base = transport.base
781
def find_format(transport):
782
return transport, BzrDirFormat.find_format(
783
transport, _server_formats=_server_formats)
785
def redirected(transport, e, redirection_notice):
786
qualified_source = e.get_source_url()
787
relpath = transport.relpath(qualified_source)
788
if not e.target.endswith(relpath):
789
# Not redirected to a branch-format, not a branch
790
raise errors.NotBranchError(path=e.target)
791
target = e.target[:-len(relpath)]
792
note('%s is%s redirected to %s',
793
transport.base, e.permanently, target)
794
# Let's try with a new transport
795
# FIXME: If 'transport' has a qualifier, this should
796
# be applied again to the new transport *iff* the
797
# schemes used are the same. Uncomment this code
798
# once the function (and tests) exist.
800
#target = urlutils.copy_url_qualifiers(original, target)
801
return get_transport(target)
804
transport, format = do_catching_redirections(find_format,
807
except errors.TooManyRedirections:
808
raise errors.NotBranchError(base)
810
BzrDir._check_supported(format, _unsupported)
811
return format.open(transport, _found=True)
813
def open_branch(self, unsupported=False):
814
"""Open the branch object at this BzrDir if one is present.
816
If unsupported is True, then no longer supported branch formats can
819
TODO: static convenience version of this?
821
raise NotImplementedError(self.open_branch)
824
def open_containing(url, possible_transports=None):
825
"""Open an existing branch which contains url.
827
:param url: url to search from.
828
See open_containing_from_transport for more detail.
830
transport = get_transport(url, possible_transports)
831
return BzrDir.open_containing_from_transport(transport)
834
def open_containing_from_transport(a_transport):
835
"""Open an existing branch which contains a_transport.base.
837
This probes for a branch at a_transport, and searches upwards from there.
839
Basically we keep looking up until we find the control directory or
840
run into the root. If there isn't one, raises NotBranchError.
841
If there is one and it is either an unrecognised format or an unsupported
842
format, UnknownFormatError or UnsupportedFormatError are raised.
843
If there is one, it is returned, along with the unused portion of url.
845
:return: The BzrDir that contains the path, and a Unicode path
846
for the rest of the URL.
848
# this gets the normalised url back. I.e. '.' -> the full path.
849
url = a_transport.base
852
result = BzrDir.open_from_transport(a_transport)
853
return result, urlutils.unescape(a_transport.relpath(url))
854
except errors.NotBranchError, e:
857
new_t = a_transport.clone('..')
858
except errors.InvalidURLJoin:
859
# reached the root, whatever that may be
860
raise errors.NotBranchError(path=url)
861
if new_t.base == a_transport.base:
862
# reached the root, whatever that may be
863
raise errors.NotBranchError(path=url)
866
def _get_tree_branch(self):
867
"""Return the branch and tree, if any, for this bzrdir.
869
Return None for tree if not present or inaccessible.
870
Raise NotBranchError if no branch is present.
871
:return: (tree, branch)
874
tree = self.open_workingtree()
875
except (errors.NoWorkingTree, errors.NotLocalUrl):
877
branch = self.open_branch()
883
def open_tree_or_branch(klass, location):
884
"""Return the branch and working tree at a location.
886
If there is no tree at the location, tree will be None.
887
If there is no branch at the location, an exception will be
889
:return: (tree, branch)
891
bzrdir = klass.open(location)
892
return bzrdir._get_tree_branch()
895
def open_containing_tree_or_branch(klass, location):
896
"""Return the branch and working tree contained by a location.
898
Returns (tree, branch, relpath).
899
If there is no tree at containing the location, tree will be None.
900
If there is no branch containing the location, an exception will be
902
relpath is the portion of the path that is contained by the branch.
904
bzrdir, relpath = klass.open_containing(location)
905
tree, branch = bzrdir._get_tree_branch()
906
return tree, branch, relpath
909
def open_containing_tree_branch_or_repository(klass, location):
910
"""Return the working tree, branch and repo contained by a location.
912
Returns (tree, branch, repository, relpath).
913
If there is no tree containing the location, tree will be None.
914
If there is no branch containing the location, branch will be None.
915
If there is no repository containing the location, repository will be
917
relpath is the portion of the path that is contained by the innermost
920
If no tree, branch or repository is found, a NotBranchError is raised.
922
bzrdir, relpath = klass.open_containing(location)
924
tree, branch = bzrdir._get_tree_branch()
925
except errors.NotBranchError:
927
repo = bzrdir.find_repository()
928
return None, None, repo, relpath
929
except (errors.NoRepositoryPresent):
930
raise errors.NotBranchError(location)
931
return tree, branch, branch.repository, relpath
933
def open_repository(self, _unsupported=False):
934
"""Open the repository object at this BzrDir if one is present.
936
This will not follow the Branch object pointer - it's strictly a direct
937
open facility. Most client code should use open_branch().repository to
940
:param _unsupported: a private parameter, not part of the api.
941
TODO: static convenience version of this?
943
raise NotImplementedError(self.open_repository)
945
def open_workingtree(self, _unsupported=False,
946
recommend_upgrade=True, from_branch=None):
947
"""Open the workingtree object at this BzrDir if one is present.
949
:param recommend_upgrade: Optional keyword parameter, when True (the
950
default), emit through the ui module a recommendation that the user
951
upgrade the working tree when the workingtree being opened is old
952
(but still fully supported).
953
:param from_branch: override bzrdir branch (for lightweight checkouts)
955
raise NotImplementedError(self.open_workingtree)
957
def has_branch(self):
958
"""Tell if this bzrdir contains a branch.
960
Note: if you're going to open the branch, you should just go ahead
961
and try, and not ask permission first. (This method just opens the
962
branch and discards it, and that's somewhat expensive.)
967
except errors.NotBranchError:
970
def has_workingtree(self):
971
"""Tell if this bzrdir contains a working tree.
973
This will still raise an exception if the bzrdir has a workingtree that
974
is remote & inaccessible.
976
Note: if you're going to open the working tree, you should just go ahead
977
and try, and not ask permission first. (This method just opens the
978
workingtree and discards it, and that's somewhat expensive.)
981
self.open_workingtree(recommend_upgrade=False)
983
except errors.NoWorkingTree:
986
def _cloning_metadir(self):
987
"""Produce a metadir suitable for cloning with.
989
:returns: (destination_bzrdir_format, source_repository)
991
result_format = self._format.__class__()
994
branch = self.open_branch()
995
source_repository = branch.repository
996
except errors.NotBranchError:
998
source_repository = self.open_repository()
999
except errors.NoRepositoryPresent:
1000
source_repository = None
1002
# XXX TODO: This isinstance is here because we have not implemented
1003
# the fix recommended in bug # 103195 - to delegate this choice the
1004
# repository itself.
1005
repo_format = source_repository._format
1006
if not isinstance(repo_format, remote.RemoteRepositoryFormat):
1007
result_format.repository_format = repo_format
1009
# TODO: Couldn't we just probe for the format in these cases,
1010
# rather than opening the whole tree? It would be a little
1011
# faster. mbp 20070401
1012
tree = self.open_workingtree(recommend_upgrade=False)
1013
except (errors.NoWorkingTree, errors.NotLocalUrl):
1014
result_format.workingtree_format = None
1016
result_format.workingtree_format = tree._format.__class__()
1017
return result_format, source_repository
1019
def cloning_metadir(self):
1020
"""Produce a metadir suitable for cloning or sprouting with.
1022
These operations may produce workingtrees (yes, even though they're
1023
"cloning" something that doesn't have a tree), so a viable workingtree
1024
format must be selected.
1026
:returns: a BzrDirFormat with all component formats either set
1027
appropriately or set to None if that component should not be
1030
format, repository = self._cloning_metadir()
1031
if format._workingtree_format is None:
1032
if repository is None:
1034
tree_format = repository._format._matchingbzrdir.workingtree_format
1035
format.workingtree_format = tree_format.__class__()
1038
def checkout_metadir(self):
1039
return self.cloning_metadir()
1041
def sprout(self, url, revision_id=None, force_new_repo=False,
1042
recurse='down', possible_transports=None,
1043
accelerator_tree=None, hardlink=False, stacked=False):
1044
"""Create a copy of this bzrdir prepared for use as a new line of
1047
If url's last component does not exist, it will be created.
1049
Attributes related to the identity of the source branch like
1050
branch nickname will be cleaned, a working tree is created
1051
whether one existed before or not; and a local branch is always
1054
if revision_id is not None, then the clone operation may tune
1055
itself to download less data.
1056
:param accelerator_tree: A tree which can be used for retrieving file
1057
contents more quickly than the revision tree, i.e. a workingtree.
1058
The revision tree will be used for cases where accelerator_tree's
1059
content is different.
1060
:param hardlink: If true, hard-link files from accelerator_tree,
1062
:param stacked: If true, create a stacked branch referring to the
1063
location of this control directory.
1065
target_transport = get_transport(url, possible_transports)
1066
target_transport.ensure_base()
1067
cloning_format = self.cloning_metadir()
1068
result = cloning_format.initialize_on_transport(target_transport)
1070
source_branch = self.open_branch()
1071
source_repository = source_branch.repository
1073
stacked_branch_url = self.root_transport.base
1075
# if a stacked branch wasn't requested, we don't create one
1076
# even if the origin was stacked
1077
stacked_branch_url = None
1078
except errors.NotBranchError:
1079
source_branch = None
1081
source_repository = self.open_repository()
1082
except errors.NoRepositoryPresent:
1083
source_repository = None
1084
stacked_branch_url = None
1085
repository_policy = result.determine_repository_policy(
1086
force_new_repo, stacked_branch_url, require_stacking=stacked)
1087
result_repo = repository_policy.acquire_repository()
1088
if source_repository is not None:
1089
# XXX: Isn't this redundant with the copy_content_into used below
1090
# after creating the branch? -- mbp 20080724
1091
result_repo.fetch(source_repository, revision_id=revision_id)
1093
# Create/update the result branch
1094
format_forced = False
1096
or repository_policy._require_stacking
1097
or repository_policy._stack_on)
1098
and not result._format.get_branch_format().supports_stacking()):
1099
# We need to make a stacked branch, but the default format for the
1100
# target doesn't support stacking. So force a branch that *can*
1102
from bzrlib.branch import BzrBranchFormat7
1103
format = BzrBranchFormat7()
1104
result_branch = format.initialize(result)
1105
mutter("using %r for stacking" % (format,))
1106
format_forced = True
1107
elif source_branch is None:
1108
# this is for sprouting a bzrdir without a branch; is that
1110
result_branch = result.create_branch()
1112
result_branch = source_branch.sprout(
1113
result, revision_id=revision_id)
1114
mutter("created new branch %r" % (result_branch,))
1115
repository_policy.configure_branch(result_branch)
1116
if source_branch is not None and format_forced:
1117
# XXX: this duplicates Branch.sprout(); it probably belongs on an
1118
# InterBranch method? -- mbp 20080724
1119
source_branch.copy_content_into(result_branch,
1120
revision_id=revision_id)
1121
result_branch.set_parent(self.root_transport.base)
1123
# Create/update the result working tree
1124
if isinstance(target_transport, LocalTransport) and (
1125
result_repo is None or result_repo.make_working_trees()):
1126
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
1130
if wt.path2id('') is None:
1132
wt.set_root_id(self.open_workingtree.get_root_id())
1133
except errors.NoWorkingTree:
1139
if recurse == 'down':
1141
basis = wt.basis_tree()
1143
subtrees = basis.iter_references()
1144
elif source_branch is not None:
1145
basis = source_branch.basis_tree()
1147
subtrees = basis.iter_references()
1152
for path, file_id in subtrees:
1153
target = urlutils.join(url, urlutils.escape(path))
1154
sublocation = source_branch.reference_parent(file_id, path)
1155
sublocation.bzrdir.sprout(target,
1156
basis.get_reference_revision(file_id, path),
1157
force_new_repo=force_new_repo, recurse=recurse,
1160
if basis is not None:
1165
class BzrDirPreSplitOut(BzrDir):
1166
"""A common class for the all-in-one formats."""
1168
def __init__(self, _transport, _format):
1169
"""See BzrDir.__init__."""
1170
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
1171
self._control_files = lockable_files.LockableFiles(
1172
self.get_branch_transport(None),
1173
self._format._lock_file_name,
1174
self._format._lock_class)
1176
def break_lock(self):
1177
"""Pre-splitout bzrdirs do not suffer from stale locks."""
1178
raise NotImplementedError(self.break_lock)
1180
def cloning_metadir(self):
1181
"""Produce a metadir suitable for cloning with."""
1182
return self._format.__class__()
1184
def clone(self, url, revision_id=None, force_new_repo=False,
1185
preserve_stacking=False):
1186
"""See BzrDir.clone().
1188
force_new_repo has no effect, since this family of formats always
1189
require a new repository.
1190
preserve_stacking has no effect, since no source branch using this
1191
family of formats can be stacked, so there is no stacking to preserve.
1193
from bzrlib.workingtree import WorkingTreeFormat2
1194
self._make_tail(url)
1195
result = self._format._initialize_for_clone(url)
1196
self.open_repository().clone(result, revision_id=revision_id)
1197
from_branch = self.open_branch()
1198
from_branch.clone(result, revision_id=revision_id)
1200
self.open_workingtree().clone(result)
1201
except errors.NotLocalUrl:
1202
# make a new one, this format always has to have one.
1204
WorkingTreeFormat2().initialize(result)
1205
except errors.NotLocalUrl:
1206
# but we cannot do it for remote trees.
1207
to_branch = result.open_branch()
1208
WorkingTreeFormat2()._stub_initialize_remote(to_branch)
1211
def create_branch(self):
1212
"""See BzrDir.create_branch."""
1213
return self.open_branch()
1215
def destroy_branch(self):
1216
"""See BzrDir.destroy_branch."""
1217
raise errors.UnsupportedOperation(self.destroy_branch, self)
1219
def create_repository(self, shared=False):
1220
"""See BzrDir.create_repository."""
1222
raise errors.IncompatibleFormat('shared repository', self._format)
1223
return self.open_repository()
1225
def destroy_repository(self):
1226
"""See BzrDir.destroy_repository."""
1227
raise errors.UnsupportedOperation(self.destroy_repository, self)
1229
def create_workingtree(self, revision_id=None, from_branch=None,
1230
accelerator_tree=None, hardlink=False):
1231
"""See BzrDir.create_workingtree."""
1232
# this looks buggy but is not -really-
1233
# because this format creates the workingtree when the bzrdir is
1235
# clone and sprout will have set the revision_id
1236
# and that will have set it for us, its only
1237
# specific uses of create_workingtree in isolation
1238
# that can do wonky stuff here, and that only
1239
# happens for creating checkouts, which cannot be
1240
# done on this format anyway. So - acceptable wart.
1241
result = self.open_workingtree(recommend_upgrade=False)
1242
if revision_id is not None:
1243
if revision_id == _mod_revision.NULL_REVISION:
1244
result.set_parent_ids([])
1246
result.set_parent_ids([revision_id])
1249
def destroy_workingtree(self):
1250
"""See BzrDir.destroy_workingtree."""
1251
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
1253
def destroy_workingtree_metadata(self):
1254
"""See BzrDir.destroy_workingtree_metadata."""
1255
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
1258
def get_branch_transport(self, branch_format):
1259
"""See BzrDir.get_branch_transport()."""
1260
if branch_format is None:
1261
return self.transport
1263
branch_format.get_format_string()
1264
except NotImplementedError:
1265
return self.transport
1266
raise errors.IncompatibleFormat(branch_format, self._format)
1268
def get_repository_transport(self, repository_format):
1269
"""See BzrDir.get_repository_transport()."""
1270
if repository_format is None:
1271
return self.transport
1273
repository_format.get_format_string()
1274
except NotImplementedError:
1275
return self.transport
1276
raise errors.IncompatibleFormat(repository_format, self._format)
1278
def get_workingtree_transport(self, workingtree_format):
1279
"""See BzrDir.get_workingtree_transport()."""
1280
if workingtree_format is None:
1281
return self.transport
1283
workingtree_format.get_format_string()
1284
except NotImplementedError:
1285
return self.transport
1286
raise errors.IncompatibleFormat(workingtree_format, self._format)
1288
def needs_format_conversion(self, format=None):
1289
"""See BzrDir.needs_format_conversion()."""
1290
# if the format is not the same as the system default,
1291
# an upgrade is needed.
1293
format = BzrDirFormat.get_default_format()
1294
return not isinstance(self._format, format.__class__)
1296
def open_branch(self, unsupported=False):
1297
"""See BzrDir.open_branch."""
1298
from bzrlib.branch import BzrBranchFormat4
1299
format = BzrBranchFormat4()
1300
self._check_supported(format, unsupported)
1301
return format.open(self, _found=True)
1303
def sprout(self, url, revision_id=None, force_new_repo=False,
1304
possible_transports=None, accelerator_tree=None,
1305
hardlink=False, stacked=False):
1306
"""See BzrDir.sprout()."""
1308
raise errors.UnstackableBranchFormat(
1309
self._format, self.root_transport.base)
1310
from bzrlib.workingtree import WorkingTreeFormat2
1311
self._make_tail(url)
1312
result = self._format._initialize_for_clone(url)
1314
self.open_repository().clone(result, revision_id=revision_id)
1315
except errors.NoRepositoryPresent:
1318
self.open_branch().sprout(result, revision_id=revision_id)
1319
except errors.NotBranchError:
1321
# we always want a working tree
1322
WorkingTreeFormat2().initialize(result,
1323
accelerator_tree=accelerator_tree,
1328
class BzrDir4(BzrDirPreSplitOut):
1329
"""A .bzr version 4 control object.
1331
This is a deprecated format and may be removed after sept 2006.
1334
def create_repository(self, shared=False):
1335
"""See BzrDir.create_repository."""
1336
return self._format.repository_format.initialize(self, shared)
1338
def needs_format_conversion(self, format=None):
1339
"""Format 4 dirs are always in need of conversion."""
1342
def open_repository(self):
1343
"""See BzrDir.open_repository."""
1344
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1345
return RepositoryFormat4().open(self, _found=True)
1348
class BzrDir5(BzrDirPreSplitOut):
1349
"""A .bzr version 5 control object.
1351
This is a deprecated format and may be removed after sept 2006.
1354
def open_repository(self):
1355
"""See BzrDir.open_repository."""
1356
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1357
return RepositoryFormat5().open(self, _found=True)
1359
def open_workingtree(self, _unsupported=False,
1360
recommend_upgrade=True):
1361
"""See BzrDir.create_workingtree."""
1362
from bzrlib.workingtree import WorkingTreeFormat2
1363
wt_format = WorkingTreeFormat2()
1364
# we don't warn here about upgrades; that ought to be handled for the
1366
return wt_format.open(self, _found=True)
1369
class BzrDir6(BzrDirPreSplitOut):
1370
"""A .bzr version 6 control object.
1372
This is a deprecated format and may be removed after sept 2006.
1375
def open_repository(self):
1376
"""See BzrDir.open_repository."""
1377
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1378
return RepositoryFormat6().open(self, _found=True)
1380
def open_workingtree(self, _unsupported=False,
1381
recommend_upgrade=True):
1382
"""See BzrDir.create_workingtree."""
1383
# we don't warn here about upgrades; that ought to be handled for the
1385
from bzrlib.workingtree import WorkingTreeFormat2
1386
return WorkingTreeFormat2().open(self, _found=True)
1389
class BzrDirMeta1(BzrDir):
1390
"""A .bzr meta version 1 control object.
1392
This is the first control object where the
1393
individual aspects are really split out: there are separate repository,
1394
workingtree and branch subdirectories and any subset of the three can be
1395
present within a BzrDir.
1398
def can_convert_format(self):
1399
"""See BzrDir.can_convert_format()."""
1402
def create_branch(self):
1403
"""See BzrDir.create_branch."""
1404
return self._format.get_branch_format().initialize(self)
1406
def destroy_branch(self):
1407
"""See BzrDir.create_branch."""
1408
self.transport.delete_tree('branch')
1410
def create_repository(self, shared=False):
1411
"""See BzrDir.create_repository."""
1412
return self._format.repository_format.initialize(self, shared)
1414
def destroy_repository(self):
1415
"""See BzrDir.destroy_repository."""
1416
self.transport.delete_tree('repository')
1418
def create_workingtree(self, revision_id=None, from_branch=None,
1419
accelerator_tree=None, hardlink=False):
1420
"""See BzrDir.create_workingtree."""
1421
return self._format.workingtree_format.initialize(
1422
self, revision_id, from_branch=from_branch,
1423
accelerator_tree=accelerator_tree, hardlink=hardlink)
1425
def destroy_workingtree(self):
1426
"""See BzrDir.destroy_workingtree."""
1427
wt = self.open_workingtree(recommend_upgrade=False)
1428
repository = wt.branch.repository
1429
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1430
wt.revert(old_tree=empty)
1431
self.destroy_workingtree_metadata()
1433
def destroy_workingtree_metadata(self):
1434
self.transport.delete_tree('checkout')
1436
def find_branch_format(self):
1437
"""Find the branch 'format' for this bzrdir.
1439
This might be a synthetic object for e.g. RemoteBranch and SVN.
1441
from bzrlib.branch import BranchFormat
1442
return BranchFormat.find_format(self)
1444
def _get_mkdir_mode(self):
1445
"""Figure out the mode to use when creating a bzrdir subdir."""
1446
temp_control = lockable_files.LockableFiles(self.transport, '',
1447
lockable_files.TransportLock)
1448
return temp_control._dir_mode
1450
def get_branch_reference(self):
1451
"""See BzrDir.get_branch_reference()."""
1452
from bzrlib.branch import BranchFormat
1453
format = BranchFormat.find_format(self)
1454
return format.get_reference(self)
1456
def get_branch_transport(self, branch_format):
1457
"""See BzrDir.get_branch_transport()."""
1458
if branch_format is None:
1459
return self.transport.clone('branch')
1461
branch_format.get_format_string()
1462
except NotImplementedError:
1463
raise errors.IncompatibleFormat(branch_format, self._format)
1465
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1466
except errors.FileExists:
1468
return self.transport.clone('branch')
1470
def get_repository_transport(self, repository_format):
1471
"""See BzrDir.get_repository_transport()."""
1472
if repository_format is None:
1473
return self.transport.clone('repository')
1475
repository_format.get_format_string()
1476
except NotImplementedError:
1477
raise errors.IncompatibleFormat(repository_format, self._format)
1479
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1480
except errors.FileExists:
1482
return self.transport.clone('repository')
1484
def get_workingtree_transport(self, workingtree_format):
1485
"""See BzrDir.get_workingtree_transport()."""
1486
if workingtree_format is None:
1487
return self.transport.clone('checkout')
1489
workingtree_format.get_format_string()
1490
except NotImplementedError:
1491
raise errors.IncompatibleFormat(workingtree_format, self._format)
1493
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1494
except errors.FileExists:
1496
return self.transport.clone('checkout')
1498
def needs_format_conversion(self, format=None):
1499
"""See BzrDir.needs_format_conversion()."""
1501
format = BzrDirFormat.get_default_format()
1502
if not isinstance(self._format, format.__class__):
1503
# it is not a meta dir format, conversion is needed.
1505
# we might want to push this down to the repository?
1507
if not isinstance(self.open_repository()._format,
1508
format.repository_format.__class__):
1509
# the repository needs an upgrade.
1511
except errors.NoRepositoryPresent:
1514
if not isinstance(self.open_branch()._format,
1515
format.get_branch_format().__class__):
1516
# the branch needs an upgrade.
1518
except errors.NotBranchError:
1521
my_wt = self.open_workingtree(recommend_upgrade=False)
1522
if not isinstance(my_wt._format,
1523
format.workingtree_format.__class__):
1524
# the workingtree needs an upgrade.
1526
except (errors.NoWorkingTree, errors.NotLocalUrl):
1530
def open_branch(self, unsupported=False):
1531
"""See BzrDir.open_branch."""
1532
format = self.find_branch_format()
1533
self._check_supported(format, unsupported)
1534
return format.open(self, _found=True)
1536
def open_repository(self, unsupported=False):
1537
"""See BzrDir.open_repository."""
1538
from bzrlib.repository import RepositoryFormat
1539
format = RepositoryFormat.find_format(self)
1540
self._check_supported(format, unsupported)
1541
return format.open(self, _found=True)
1543
def open_workingtree(self, unsupported=False,
1544
recommend_upgrade=True):
1545
"""See BzrDir.open_workingtree."""
1546
from bzrlib.workingtree import WorkingTreeFormat
1547
format = WorkingTreeFormat.find_format(self)
1548
self._check_supported(format, unsupported,
1550
basedir=self.root_transport.base)
1551
return format.open(self, _found=True)
1553
def _get_config(self):
1554
return config.BzrDirConfig(self.transport)
1557
class BzrDirFormat(object):
1558
"""An encapsulation of the initialization and open routines for a format.
1560
Formats provide three things:
1561
* An initialization routine,
1565
Formats are placed in a dict by their format string for reference
1566
during bzrdir opening. These should be subclasses of BzrDirFormat
1569
Once a format is deprecated, just deprecate the initialize and open
1570
methods on the format class. Do not deprecate the object, as the
1571
object will be created every system load.
1574
_default_format = None
1575
"""The default format used for new .bzr dirs."""
1578
"""The known formats."""
1580
_control_formats = []
1581
"""The registered control formats - .bzr, ....
1583
This is a list of BzrDirFormat objects.
1586
_control_server_formats = []
1587
"""The registered control server formats, e.g. RemoteBzrDirs.
1589
This is a list of BzrDirFormat objects.
1592
_lock_file_name = 'branch-lock'
1594
# _lock_class must be set in subclasses to the lock type, typ.
1595
# TransportLock or LockDir
1598
def find_format(klass, transport, _server_formats=True):
1599
"""Return the format present at transport."""
1601
formats = klass._control_server_formats + klass._control_formats
1603
formats = klass._control_formats
1604
for format in formats:
1606
return format.probe_transport(transport)
1607
except errors.NotBranchError:
1608
# this format does not find a control dir here.
1610
raise errors.NotBranchError(path=transport.base)
1613
def probe_transport(klass, transport):
1614
"""Return the .bzrdir style format present in a directory."""
1616
format_string = transport.get(".bzr/branch-format").read()
1617
except errors.NoSuchFile:
1618
raise errors.NotBranchError(path=transport.base)
1621
return klass._formats[format_string]
1623
raise errors.UnknownFormatError(format=format_string, kind='bzrdir')
1626
def get_default_format(klass):
1627
"""Return the current default format."""
1628
return klass._default_format
1630
def get_format_string(self):
1631
"""Return the ASCII format string that identifies this format."""
1632
raise NotImplementedError(self.get_format_string)
1634
def get_format_description(self):
1635
"""Return the short description for this format."""
1636
raise NotImplementedError(self.get_format_description)
1638
def get_converter(self, format=None):
1639
"""Return the converter to use to convert bzrdirs needing converts.
1641
This returns a bzrlib.bzrdir.Converter object.
1643
This should return the best upgrader to step this format towards the
1644
current default format. In the case of plugins we can/should provide
1645
some means for them to extend the range of returnable converters.
1647
:param format: Optional format to override the default format of the
1650
raise NotImplementedError(self.get_converter)
1652
def initialize(self, url, possible_transports=None):
1653
"""Create a bzr control dir at this url and return an opened copy.
1655
Subclasses should typically override initialize_on_transport
1656
instead of this method.
1658
return self.initialize_on_transport(get_transport(url,
1659
possible_transports))
1661
def initialize_on_transport(self, transport):
1662
"""Initialize a new bzrdir in the base directory of a Transport."""
1663
# Since we don't have a .bzr directory, inherit the
1664
# mode from the root directory
1665
temp_control = lockable_files.LockableFiles(transport,
1666
'', lockable_files.TransportLock)
1667
temp_control._transport.mkdir('.bzr',
1668
# FIXME: RBC 20060121 don't peek under
1670
mode=temp_control._dir_mode)
1671
if sys.platform == 'win32' and isinstance(transport, LocalTransport):
1672
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
1673
file_mode = temp_control._file_mode
1675
bzrdir_transport = transport.clone('.bzr')
1676
utf8_files = [('README',
1677
"This is a Bazaar control directory.\n"
1678
"Do not change any files in this directory.\n"
1679
"See http://bazaar-vcs.org/ for more information about Bazaar.\n"),
1680
('branch-format', self.get_format_string()),
1682
# NB: no need to escape relative paths that are url safe.
1683
control_files = lockable_files.LockableFiles(bzrdir_transport,
1684
self._lock_file_name, self._lock_class)
1685
control_files.create_lock()
1686
control_files.lock_write()
1688
for (filename, content) in utf8_files:
1689
bzrdir_transport.put_bytes(filename, content,
1692
control_files.unlock()
1693
return self.open(transport, _found=True)
1695
def is_supported(self):
1696
"""Is this format supported?
1698
Supported formats must be initializable and openable.
1699
Unsupported formats may not support initialization or committing or
1700
some other features depending on the reason for not being supported.
1704
def same_model(self, target_format):
1705
return (self.repository_format.rich_root_data ==
1706
target_format.rich_root_data)
1709
def known_formats(klass):
1710
"""Return all the known formats.
1712
Concrete formats should override _known_formats.
1714
# There is double indirection here to make sure that control
1715
# formats used by more than one dir format will only be probed
1716
# once. This can otherwise be quite expensive for remote connections.
1718
for format in klass._control_formats:
1719
result.update(format._known_formats())
1723
def _known_formats(klass):
1724
"""Return the known format instances for this control format."""
1725
return set(klass._formats.values())
1727
def open(self, transport, _found=False):
1728
"""Return an instance of this format for the dir transport points at.
1730
_found is a private parameter, do not use it.
1733
found_format = BzrDirFormat.find_format(transport)
1734
if not isinstance(found_format, self.__class__):
1735
raise AssertionError("%s was asked to open %s, but it seems to need "
1737
% (self, transport, found_format))
1738
return self._open(transport)
1740
def _open(self, transport):
1741
"""Template method helper for opening BzrDirectories.
1743
This performs the actual open and any additional logic or parameter
1746
raise NotImplementedError(self._open)
1749
def register_format(klass, format):
1750
klass._formats[format.get_format_string()] = format
1753
def register_control_format(klass, format):
1754
"""Register a format that does not use '.bzr' for its control dir.
1756
TODO: This should be pulled up into a 'ControlDirFormat' base class
1757
which BzrDirFormat can inherit from, and renamed to register_format
1758
there. It has been done without that for now for simplicity of
1761
klass._control_formats.append(format)
1764
def register_control_server_format(klass, format):
1765
"""Register a control format for client-server environments.
1767
These formats will be tried before ones registered with
1768
register_control_format. This gives implementations that decide to the
1769
chance to grab it before anything looks at the contents of the format
1772
klass._control_server_formats.append(format)
1775
def _set_default_format(klass, format):
1776
"""Set default format (for testing behavior of defaults only)"""
1777
klass._default_format = format
1781
return self.get_format_string().rstrip()
1784
def unregister_format(klass, format):
1785
del klass._formats[format.get_format_string()]
1788
def unregister_control_format(klass, format):
1789
klass._control_formats.remove(format)
1792
class BzrDirFormat4(BzrDirFormat):
1793
"""Bzr dir format 4.
1795
This format is a combined format for working tree, branch and repository.
1797
- Format 1 working trees [always]
1798
- Format 4 branches [always]
1799
- Format 4 repositories [always]
1801
This format is deprecated: it indexes texts using a text it which is
1802
removed in format 5; write support for this format has been removed.
1805
_lock_class = lockable_files.TransportLock
1807
def get_format_string(self):
1808
"""See BzrDirFormat.get_format_string()."""
1809
return "Bazaar-NG branch, format 0.0.4\n"
1811
def get_format_description(self):
1812
"""See BzrDirFormat.get_format_description()."""
1813
return "All-in-one format 4"
1815
def get_converter(self, format=None):
1816
"""See BzrDirFormat.get_converter()."""
1817
# there is one and only one upgrade path here.
1818
return ConvertBzrDir4To5()
1820
def initialize_on_transport(self, transport):
1821
"""Format 4 branches cannot be created."""
1822
raise errors.UninitializableFormat(self)
1824
def is_supported(self):
1825
"""Format 4 is not supported.
1827
It is not supported because the model changed from 4 to 5 and the
1828
conversion logic is expensive - so doing it on the fly was not
1833
def _open(self, transport):
1834
"""See BzrDirFormat._open."""
1835
return BzrDir4(transport, self)
1837
def __return_repository_format(self):
1838
"""Circular import protection."""
1839
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1840
return RepositoryFormat4()
1841
repository_format = property(__return_repository_format)
1844
class BzrDirFormat5(BzrDirFormat):
1845
"""Bzr control format 5.
1847
This format is a combined format for working tree, branch and repository.
1849
- Format 2 working trees [always]
1850
- Format 4 branches [always]
1851
- Format 5 repositories [always]
1852
Unhashed stores in the repository.
1855
_lock_class = lockable_files.TransportLock
1857
def get_format_string(self):
1858
"""See BzrDirFormat.get_format_string()."""
1859
return "Bazaar-NG branch, format 5\n"
1861
def get_format_description(self):
1862
"""See BzrDirFormat.get_format_description()."""
1863
return "All-in-one format 5"
1865
def get_converter(self, format=None):
1866
"""See BzrDirFormat.get_converter()."""
1867
# there is one and only one upgrade path here.
1868
return ConvertBzrDir5To6()
1870
def _initialize_for_clone(self, url):
1871
return self.initialize_on_transport(get_transport(url), _cloning=True)
1873
def initialize_on_transport(self, transport, _cloning=False):
1874
"""Format 5 dirs always have working tree, branch and repository.
1876
Except when they are being cloned.
1878
from bzrlib.branch import BzrBranchFormat4
1879
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1880
from bzrlib.workingtree import WorkingTreeFormat2
1881
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1882
RepositoryFormat5().initialize(result, _internal=True)
1884
branch = BzrBranchFormat4().initialize(result)
1886
WorkingTreeFormat2().initialize(result)
1887
except errors.NotLocalUrl:
1888
# Even though we can't access the working tree, we need to
1889
# create its control files.
1890
WorkingTreeFormat2()._stub_initialize_remote(branch)
1893
def _open(self, transport):
1894
"""See BzrDirFormat._open."""
1895
return BzrDir5(transport, self)
1897
def __return_repository_format(self):
1898
"""Circular import protection."""
1899
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1900
return RepositoryFormat5()
1901
repository_format = property(__return_repository_format)
1904
class BzrDirFormat6(BzrDirFormat):
1905
"""Bzr control format 6.
1907
This format is a combined format for working tree, branch and repository.
1909
- Format 2 working trees [always]
1910
- Format 4 branches [always]
1911
- Format 6 repositories [always]
1914
_lock_class = lockable_files.TransportLock
1916
def get_format_string(self):
1917
"""See BzrDirFormat.get_format_string()."""
1918
return "Bazaar-NG branch, format 6\n"
1920
def get_format_description(self):
1921
"""See BzrDirFormat.get_format_description()."""
1922
return "All-in-one format 6"
1924
def get_converter(self, format=None):
1925
"""See BzrDirFormat.get_converter()."""
1926
# there is one and only one upgrade path here.
1927
return ConvertBzrDir6ToMeta()
1929
def _initialize_for_clone(self, url):
1930
return self.initialize_on_transport(get_transport(url), _cloning=True)
1932
def initialize_on_transport(self, transport, _cloning=False):
1933
"""Format 6 dirs always have working tree, branch and repository.
1935
Except when they are being cloned.
1937
from bzrlib.branch import BzrBranchFormat4
1938
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1939
from bzrlib.workingtree import WorkingTreeFormat2
1940
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1941
RepositoryFormat6().initialize(result, _internal=True)
1943
branch = BzrBranchFormat4().initialize(result)
1945
WorkingTreeFormat2().initialize(result)
1946
except errors.NotLocalUrl:
1947
# Even though we can't access the working tree, we need to
1948
# create its control files.
1949
WorkingTreeFormat2()._stub_initialize_remote(branch)
1952
def _open(self, transport):
1953
"""See BzrDirFormat._open."""
1954
return BzrDir6(transport, self)
1956
def __return_repository_format(self):
1957
"""Circular import protection."""
1958
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1959
return RepositoryFormat6()
1960
repository_format = property(__return_repository_format)
1963
class BzrDirMetaFormat1(BzrDirFormat):
1964
"""Bzr meta control format 1
1966
This is the first format with split out working tree, branch and repository
1969
- Format 3 working trees [optional]
1970
- Format 5 branches [optional]
1971
- Format 7 repositories [optional]
1974
_lock_class = lockdir.LockDir
1977
self._workingtree_format = None
1978
self._branch_format = None
1980
def __eq__(self, other):
1981
if other.__class__ is not self.__class__:
1983
if other.repository_format != self.repository_format:
1985
if other.workingtree_format != self.workingtree_format:
1989
def __ne__(self, other):
1990
return not self == other
1992
def get_branch_format(self):
1993
if self._branch_format is None:
1994
from bzrlib.branch import BranchFormat
1995
self._branch_format = BranchFormat.get_default_format()
1996
return self._branch_format
1998
def set_branch_format(self, format):
1999
self._branch_format = format
2001
def get_converter(self, format=None):
2002
"""See BzrDirFormat.get_converter()."""
2004
format = BzrDirFormat.get_default_format()
2005
if not isinstance(self, format.__class__):
2006
# converting away from metadir is not implemented
2007
raise NotImplementedError(self.get_converter)
2008
return ConvertMetaToMeta(format)
2010
def get_format_string(self):
2011
"""See BzrDirFormat.get_format_string()."""
2012
return "Bazaar-NG meta directory, format 1\n"
2014
def get_format_description(self):
2015
"""See BzrDirFormat.get_format_description()."""
2016
return "Meta directory format 1"
2018
def _open(self, transport):
2019
"""See BzrDirFormat._open."""
2020
return BzrDirMeta1(transport, self)
2022
def __return_repository_format(self):
2023
"""Circular import protection."""
2024
if getattr(self, '_repository_format', None):
2025
return self._repository_format
2026
from bzrlib.repository import RepositoryFormat
2027
return RepositoryFormat.get_default_format()
2029
def __set_repository_format(self, value):
2030
"""Allow changing the repository format for metadir formats."""
2031
self._repository_format = value
2033
repository_format = property(__return_repository_format, __set_repository_format)
2035
def __get_workingtree_format(self):
2036
if self._workingtree_format is None:
2037
from bzrlib.workingtree import WorkingTreeFormat
2038
self._workingtree_format = WorkingTreeFormat.get_default_format()
2039
return self._workingtree_format
2041
def __set_workingtree_format(self, wt_format):
2042
self._workingtree_format = wt_format
2044
workingtree_format = property(__get_workingtree_format,
2045
__set_workingtree_format)
2048
# Register bzr control format
2049
BzrDirFormat.register_control_format(BzrDirFormat)
2051
# Register bzr formats
2052
BzrDirFormat.register_format(BzrDirFormat4())
2053
BzrDirFormat.register_format(BzrDirFormat5())
2054
BzrDirFormat.register_format(BzrDirFormat6())
2055
__default_format = BzrDirMetaFormat1()
2056
BzrDirFormat.register_format(__default_format)
2057
BzrDirFormat._default_format = __default_format
2060
class Converter(object):
2061
"""Converts a disk format object from one format to another."""
2063
def convert(self, to_convert, pb):
2064
"""Perform the conversion of to_convert, giving feedback via pb.
2066
:param to_convert: The disk object to convert.
2067
:param pb: a progress bar to use for progress information.
2070
def step(self, message):
2071
"""Update the pb by a step."""
2073
self.pb.update(message, self.count, self.total)
2076
class ConvertBzrDir4To5(Converter):
2077
"""Converts format 4 bzr dirs to format 5."""
2080
super(ConvertBzrDir4To5, self).__init__()
2081
self.converted_revs = set()
2082
self.absent_revisions = set()
2086
def convert(self, to_convert, pb):
2087
"""See Converter.convert()."""
2088
self.bzrdir = to_convert
2090
self.pb.note('starting upgrade from format 4 to 5')
2091
if isinstance(self.bzrdir.transport, LocalTransport):
2092
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
2093
self._convert_to_weaves()
2094
return BzrDir.open(self.bzrdir.root_transport.base)
2096
def _convert_to_weaves(self):
2097
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
2100
stat = self.bzrdir.transport.stat('weaves')
2101
if not S_ISDIR(stat.st_mode):
2102
self.bzrdir.transport.delete('weaves')
2103
self.bzrdir.transport.mkdir('weaves')
2104
except errors.NoSuchFile:
2105
self.bzrdir.transport.mkdir('weaves')
2106
# deliberately not a WeaveFile as we want to build it up slowly.
2107
self.inv_weave = Weave('inventory')
2108
# holds in-memory weaves for all files
2109
self.text_weaves = {}
2110
self.bzrdir.transport.delete('branch-format')
2111
self.branch = self.bzrdir.open_branch()
2112
self._convert_working_inv()
2113
rev_history = self.branch.revision_history()
2114
# to_read is a stack holding the revisions we still need to process;
2115
# appending to it adds new highest-priority revisions
2116
self.known_revisions = set(rev_history)
2117
self.to_read = rev_history[-1:]
2119
rev_id = self.to_read.pop()
2120
if (rev_id not in self.revisions
2121
and rev_id not in self.absent_revisions):
2122
self._load_one_rev(rev_id)
2124
to_import = self._make_order()
2125
for i, rev_id in enumerate(to_import):
2126
self.pb.update('converting revision', i, len(to_import))
2127
self._convert_one_rev(rev_id)
2129
self._write_all_weaves()
2130
self._write_all_revs()
2131
self.pb.note('upgraded to weaves:')
2132
self.pb.note(' %6d revisions and inventories', len(self.revisions))
2133
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
2134
self.pb.note(' %6d texts', self.text_count)
2135
self._cleanup_spare_files_after_format4()
2136
self.branch._transport.put_bytes(
2138
BzrDirFormat5().get_format_string(),
2139
mode=self.bzrdir._get_file_mode())
2141
def _cleanup_spare_files_after_format4(self):
2142
# FIXME working tree upgrade foo.
2143
for n in 'merged-patches', 'pending-merged-patches':
2145
## assert os.path.getsize(p) == 0
2146
self.bzrdir.transport.delete(n)
2147
except errors.NoSuchFile:
2149
self.bzrdir.transport.delete_tree('inventory-store')
2150
self.bzrdir.transport.delete_tree('text-store')
2152
def _convert_working_inv(self):
2153
inv = xml4.serializer_v4.read_inventory(
2154
self.branch._transport.get('inventory'))
2155
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv, working=True)
2156
self.branch._transport.put_bytes('inventory', new_inv_xml,
2157
mode=self.bzrdir._get_file_mode())
2159
def _write_all_weaves(self):
2160
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
2161
weave_transport = self.bzrdir.transport.clone('weaves')
2162
weaves = WeaveStore(weave_transport, prefixed=False)
2163
transaction = WriteTransaction()
2167
for file_id, file_weave in self.text_weaves.items():
2168
self.pb.update('writing weave', i, len(self.text_weaves))
2169
weaves._put_weave(file_id, file_weave, transaction)
2171
self.pb.update('inventory', 0, 1)
2172
controlweaves._put_weave('inventory', self.inv_weave, transaction)
2173
self.pb.update('inventory', 1, 1)
2177
def _write_all_revs(self):
2178
"""Write all revisions out in new form."""
2179
self.bzrdir.transport.delete_tree('revision-store')
2180
self.bzrdir.transport.mkdir('revision-store')
2181
revision_transport = self.bzrdir.transport.clone('revision-store')
2183
from bzrlib.xml5 import serializer_v5
2184
from bzrlib.repofmt.weaverepo import RevisionTextStore
2185
revision_store = RevisionTextStore(revision_transport,
2186
serializer_v5, False, versionedfile.PrefixMapper(),
2187
lambda:True, lambda:True)
2189
for i, rev_id in enumerate(self.converted_revs):
2190
self.pb.update('write revision', i, len(self.converted_revs))
2191
text = serializer_v5.write_revision_to_string(
2192
self.revisions[rev_id])
2194
revision_store.add_lines(key, None, osutils.split_lines(text))
2198
def _load_one_rev(self, rev_id):
2199
"""Load a revision object into memory.
2201
Any parents not either loaded or abandoned get queued to be
2203
self.pb.update('loading revision',
2204
len(self.revisions),
2205
len(self.known_revisions))
2206
if not self.branch.repository.has_revision(rev_id):
2208
self.pb.note('revision {%s} not present in branch; '
2209
'will be converted as a ghost',
2211
self.absent_revisions.add(rev_id)
2213
rev = self.branch.repository.get_revision(rev_id)
2214
for parent_id in rev.parent_ids:
2215
self.known_revisions.add(parent_id)
2216
self.to_read.append(parent_id)
2217
self.revisions[rev_id] = rev
2219
def _load_old_inventory(self, rev_id):
2220
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
2221
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
2222
inv.revision_id = rev_id
2223
rev = self.revisions[rev_id]
2226
def _load_updated_inventory(self, rev_id):
2227
inv_xml = self.inv_weave.get_text(rev_id)
2228
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml, rev_id)
2231
def _convert_one_rev(self, rev_id):
2232
"""Convert revision and all referenced objects to new format."""
2233
rev = self.revisions[rev_id]
2234
inv = self._load_old_inventory(rev_id)
2235
present_parents = [p for p in rev.parent_ids
2236
if p not in self.absent_revisions]
2237
self._convert_revision_contents(rev, inv, present_parents)
2238
self._store_new_inv(rev, inv, present_parents)
2239
self.converted_revs.add(rev_id)
2241
def _store_new_inv(self, rev, inv, present_parents):
2242
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
2243
new_inv_sha1 = sha_string(new_inv_xml)
2244
self.inv_weave.add_lines(rev.revision_id,
2246
new_inv_xml.splitlines(True))
2247
rev.inventory_sha1 = new_inv_sha1
2249
def _convert_revision_contents(self, rev, inv, present_parents):
2250
"""Convert all the files within a revision.
2252
Also upgrade the inventory to refer to the text revision ids."""
2253
rev_id = rev.revision_id
2254
mutter('converting texts of revision {%s}',
2256
parent_invs = map(self._load_updated_inventory, present_parents)
2257
entries = inv.iter_entries()
2259
for path, ie in entries:
2260
self._convert_file_version(rev, ie, parent_invs)
2262
def _convert_file_version(self, rev, ie, parent_invs):
2263
"""Convert one version of one file.
2265
The file needs to be added into the weave if it is a merge
2266
of >=2 parents or if it's changed from its parent.
2268
file_id = ie.file_id
2269
rev_id = rev.revision_id
2270
w = self.text_weaves.get(file_id)
2273
self.text_weaves[file_id] = w
2274
text_changed = False
2275
parent_candiate_entries = ie.parent_candidates(parent_invs)
2276
heads = graph.Graph(self).heads(parent_candiate_entries.keys())
2277
# XXX: Note that this is unordered - and this is tolerable because
2278
# the previous code was also unordered.
2279
previous_entries = dict((head, parent_candiate_entries[head]) for head
2281
self.snapshot_ie(previous_entries, ie, w, rev_id)
2284
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
2285
def get_parents(self, revision_ids):
2286
for revision_id in revision_ids:
2287
yield self.revisions[revision_id].parent_ids
2289
def get_parent_map(self, revision_ids):
2290
"""See graph._StackedParentsProvider.get_parent_map"""
2291
return dict((revision_id, self.revisions[revision_id])
2292
for revision_id in revision_ids
2293
if revision_id in self.revisions)
2295
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
2296
# TODO: convert this logic, which is ~= snapshot to
2297
# a call to:. This needs the path figured out. rather than a work_tree
2298
# a v4 revision_tree can be given, or something that looks enough like
2299
# one to give the file content to the entry if it needs it.
2300
# and we need something that looks like a weave store for snapshot to
2302
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
2303
if len(previous_revisions) == 1:
2304
previous_ie = previous_revisions.values()[0]
2305
if ie._unchanged(previous_ie):
2306
ie.revision = previous_ie.revision
2309
text = self.branch.repository._text_store.get(ie.text_id)
2310
file_lines = text.readlines()
2311
w.add_lines(rev_id, previous_revisions, file_lines)
2312
self.text_count += 1
2314
w.add_lines(rev_id, previous_revisions, [])
2315
ie.revision = rev_id
2317
def _make_order(self):
2318
"""Return a suitable order for importing revisions.
2320
The order must be such that an revision is imported after all
2321
its (present) parents.
2323
todo = set(self.revisions.keys())
2324
done = self.absent_revisions.copy()
2327
# scan through looking for a revision whose parents
2329
for rev_id in sorted(list(todo)):
2330
rev = self.revisions[rev_id]
2331
parent_ids = set(rev.parent_ids)
2332
if parent_ids.issubset(done):
2333
# can take this one now
2334
order.append(rev_id)
2340
class ConvertBzrDir5To6(Converter):
2341
"""Converts format 5 bzr dirs to format 6."""
2343
def convert(self, to_convert, pb):
2344
"""See Converter.convert()."""
2345
self.bzrdir = to_convert
2347
self.pb.note('starting upgrade from format 5 to 6')
2348
self._convert_to_prefixed()
2349
return BzrDir.open(self.bzrdir.root_transport.base)
2351
def _convert_to_prefixed(self):
2352
from bzrlib.store import TransportStore
2353
self.bzrdir.transport.delete('branch-format')
2354
for store_name in ["weaves", "revision-store"]:
2355
self.pb.note("adding prefixes to %s" % store_name)
2356
store_transport = self.bzrdir.transport.clone(store_name)
2357
store = TransportStore(store_transport, prefixed=True)
2358
for urlfilename in store_transport.list_dir('.'):
2359
filename = urlutils.unescape(urlfilename)
2360
if (filename.endswith(".weave") or
2361
filename.endswith(".gz") or
2362
filename.endswith(".sig")):
2363
file_id, suffix = os.path.splitext(filename)
2367
new_name = store._mapper.map((file_id,)) + suffix
2368
# FIXME keep track of the dirs made RBC 20060121
2370
store_transport.move(filename, new_name)
2371
except errors.NoSuchFile: # catches missing dirs strangely enough
2372
store_transport.mkdir(osutils.dirname(new_name))
2373
store_transport.move(filename, new_name)
2374
self.bzrdir.transport.put_bytes(
2376
BzrDirFormat6().get_format_string(),
2377
mode=self.bzrdir._get_file_mode())
2380
class ConvertBzrDir6ToMeta(Converter):
2381
"""Converts format 6 bzr dirs to metadirs."""
2383
def convert(self, to_convert, pb):
2384
"""See Converter.convert()."""
2385
from bzrlib.repofmt.weaverepo import RepositoryFormat7
2386
from bzrlib.branch import BzrBranchFormat5
2387
self.bzrdir = to_convert
2390
self.total = 20 # the steps we know about
2391
self.garbage_inventories = []
2392
self.dir_mode = self.bzrdir._get_dir_mode()
2393
self.file_mode = self.bzrdir._get_file_mode()
2395
self.pb.note('starting upgrade from format 6 to metadir')
2396
self.bzrdir.transport.put_bytes(
2398
"Converting to format 6",
2399
mode=self.file_mode)
2400
# its faster to move specific files around than to open and use the apis...
2401
# first off, nuke ancestry.weave, it was never used.
2403
self.step('Removing ancestry.weave')
2404
self.bzrdir.transport.delete('ancestry.weave')
2405
except errors.NoSuchFile:
2407
# find out whats there
2408
self.step('Finding branch files')
2409
last_revision = self.bzrdir.open_branch().last_revision()
2410
bzrcontents = self.bzrdir.transport.list_dir('.')
2411
for name in bzrcontents:
2412
if name.startswith('basis-inventory.'):
2413
self.garbage_inventories.append(name)
2414
# create new directories for repository, working tree and branch
2415
repository_names = [('inventory.weave', True),
2416
('revision-store', True),
2418
self.step('Upgrading repository ')
2419
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2420
self.make_lock('repository')
2421
# we hard code the formats here because we are converting into
2422
# the meta format. The meta format upgrader can take this to a
2423
# future format within each component.
2424
self.put_format('repository', RepositoryFormat7())
2425
for entry in repository_names:
2426
self.move_entry('repository', entry)
2428
self.step('Upgrading branch ')
2429
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2430
self.make_lock('branch')
2431
self.put_format('branch', BzrBranchFormat5())
2432
branch_files = [('revision-history', True),
2433
('branch-name', True),
2435
for entry in branch_files:
2436
self.move_entry('branch', entry)
2438
checkout_files = [('pending-merges', True),
2439
('inventory', True),
2440
('stat-cache', False)]
2441
# If a mandatory checkout file is not present, the branch does not have
2442
# a functional checkout. Do not create a checkout in the converted
2444
for name, mandatory in checkout_files:
2445
if mandatory and name not in bzrcontents:
2446
has_checkout = False
2450
if not has_checkout:
2451
self.pb.note('No working tree.')
2452
# If some checkout files are there, we may as well get rid of them.
2453
for name, mandatory in checkout_files:
2454
if name in bzrcontents:
2455
self.bzrdir.transport.delete(name)
2457
from bzrlib.workingtree import WorkingTreeFormat3
2458
self.step('Upgrading working tree')
2459
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2460
self.make_lock('checkout')
2462
'checkout', WorkingTreeFormat3())
2463
self.bzrdir.transport.delete_multi(
2464
self.garbage_inventories, self.pb)
2465
for entry in checkout_files:
2466
self.move_entry('checkout', entry)
2467
if last_revision is not None:
2468
self.bzrdir.transport.put_bytes(
2469
'checkout/last-revision', last_revision)
2470
self.bzrdir.transport.put_bytes(
2472
BzrDirMetaFormat1().get_format_string(),
2473
mode=self.file_mode)
2474
return BzrDir.open(self.bzrdir.root_transport.base)
2476
def make_lock(self, name):
2477
"""Make a lock for the new control dir name."""
2478
self.step('Make %s lock' % name)
2479
ld = lockdir.LockDir(self.bzrdir.transport,
2481
file_modebits=self.file_mode,
2482
dir_modebits=self.dir_mode)
2485
def move_entry(self, new_dir, entry):
2486
"""Move then entry name into new_dir."""
2488
mandatory = entry[1]
2489
self.step('Moving %s' % name)
2491
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2492
except errors.NoSuchFile:
2496
def put_format(self, dirname, format):
2497
self.bzrdir.transport.put_bytes('%s/format' % dirname,
2498
format.get_format_string(),
2502
class ConvertMetaToMeta(Converter):
2503
"""Converts the components of metadirs."""
2505
def __init__(self, target_format):
2506
"""Create a metadir to metadir converter.
2508
:param target_format: The final metadir format that is desired.
2510
self.target_format = target_format
2512
def convert(self, to_convert, pb):
2513
"""See Converter.convert()."""
2514
self.bzrdir = to_convert
2518
self.step('checking repository format')
2520
repo = self.bzrdir.open_repository()
2521
except errors.NoRepositoryPresent:
2524
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2525
from bzrlib.repository import CopyConverter
2526
self.pb.note('starting repository conversion')
2527
converter = CopyConverter(self.target_format.repository_format)
2528
converter.convert(repo, pb)
2530
branch = self.bzrdir.open_branch()
2531
except errors.NotBranchError:
2534
# TODO: conversions of Branch and Tree should be done by
2535
# InterXFormat lookups/some sort of registry.
2536
# Avoid circular imports
2537
from bzrlib import branch as _mod_branch
2538
old = branch._format.__class__
2539
new = self.target_format.get_branch_format().__class__
2541
if (old == _mod_branch.BzrBranchFormat5 and
2542
new in (_mod_branch.BzrBranchFormat6,
2543
_mod_branch.BzrBranchFormat7)):
2544
branch_converter = _mod_branch.Converter5to6()
2545
elif (old == _mod_branch.BzrBranchFormat6 and
2546
new == _mod_branch.BzrBranchFormat7):
2547
branch_converter = _mod_branch.Converter6to7()
2549
raise errors.BadConversionTarget("No converter", new)
2550
branch_converter.convert(branch)
2551
branch = self.bzrdir.open_branch()
2552
old = branch._format.__class__
2554
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2555
except (errors.NoWorkingTree, errors.NotLocalUrl):
2558
# TODO: conversions of Branch and Tree should be done by
2559
# InterXFormat lookups
2560
if (isinstance(tree, workingtree.WorkingTree3) and
2561
not isinstance(tree, workingtree_4.WorkingTree4) and
2562
isinstance(self.target_format.workingtree_format,
2563
workingtree_4.WorkingTreeFormat4)):
2564
workingtree_4.Converter3to4().convert(tree)
2568
# This is not in remote.py because it's small, and needs to be registered.
2569
# Putting it in remote.py creates a circular import problem.
2570
# we can make it a lazy object if the control formats is turned into something
2572
class RemoteBzrDirFormat(BzrDirMetaFormat1):
2573
"""Format representing bzrdirs accessed via a smart server"""
2575
def get_format_description(self):
2576
return 'bzr remote bzrdir'
2579
def probe_transport(klass, transport):
2580
"""Return a RemoteBzrDirFormat object if it looks possible."""
2582
medium = transport.get_smart_medium()
2583
except (NotImplementedError, AttributeError,
2584
errors.TransportNotPossible, errors.NoSmartMedium,
2585
errors.SmartProtocolError):
2586
# no smart server, so not a branch for this format type.
2587
raise errors.NotBranchError(path=transport.base)
2589
# Decline to open it if the server doesn't support our required
2590
# version (3) so that the VFS-based transport will do it.
2591
if medium.should_probe():
2593
server_version = medium.protocol_version()
2594
except errors.SmartProtocolError:
2595
# Apparently there's no usable smart server there, even though
2596
# the medium supports the smart protocol.
2597
raise errors.NotBranchError(path=transport.base)
2598
if server_version != '2':
2599
raise errors.NotBranchError(path=transport.base)
2602
def initialize_on_transport(self, transport):
2604
# hand off the request to the smart server
2605
client_medium = transport.get_smart_medium()
2606
except errors.NoSmartMedium:
2607
# TODO: lookup the local format from a server hint.
2608
local_dir_format = BzrDirMetaFormat1()
2609
return local_dir_format.initialize_on_transport(transport)
2610
client = _SmartClient(client_medium)
2611
path = client.remote_path_from_transport(transport)
2612
response = client.call('BzrDirFormat.initialize', path)
2613
if response[0] != 'ok':
2614
raise errors.SmartProtocolError('unexpected response code %s' % (response,))
2615
return remote.RemoteBzrDir(transport)
2617
def _open(self, transport):
2618
return remote.RemoteBzrDir(transport)
2620
def __eq__(self, other):
2621
if not isinstance(other, RemoteBzrDirFormat):
2623
return self.get_format_description() == other.get_format_description()
2626
BzrDirFormat.register_control_server_format(RemoteBzrDirFormat)
2629
class BzrDirFormatInfo(object):
2631
def __init__(self, native, deprecated, hidden, experimental):
2632
self.deprecated = deprecated
2633
self.native = native
2634
self.hidden = hidden
2635
self.experimental = experimental
2638
class BzrDirFormatRegistry(registry.Registry):
2639
"""Registry of user-selectable BzrDir subformats.
2641
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2642
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2646
"""Create a BzrDirFormatRegistry."""
2647
self._aliases = set()
2648
super(BzrDirFormatRegistry, self).__init__()
2651
"""Return a set of the format names which are aliases."""
2652
return frozenset(self._aliases)
2654
def register_metadir(self, key,
2655
repository_format, help, native=True, deprecated=False,
2661
"""Register a metadir subformat.
2663
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2664
by the Repository format.
2666
:param repository_format: The fully-qualified repository format class
2668
:param branch_format: Fully-qualified branch format class name as
2670
:param tree_format: Fully-qualified tree format class name as
2673
# This should be expanded to support setting WorkingTree and Branch
2674
# formats, once BzrDirMetaFormat1 supports that.
2675
def _load(full_name):
2676
mod_name, factory_name = full_name.rsplit('.', 1)
2678
mod = __import__(mod_name, globals(), locals(),
2680
except ImportError, e:
2681
raise ImportError('failed to load %s: %s' % (full_name, e))
2683
factory = getattr(mod, factory_name)
2684
except AttributeError:
2685
raise AttributeError('no factory %s in module %r'
2690
bd = BzrDirMetaFormat1()
2691
if branch_format is not None:
2692
bd.set_branch_format(_load(branch_format))
2693
if tree_format is not None:
2694
bd.workingtree_format = _load(tree_format)
2695
if repository_format is not None:
2696
bd.repository_format = _load(repository_format)
2698
self.register(key, helper, help, native, deprecated, hidden,
2699
experimental, alias)
2701
def register(self, key, factory, help, native=True, deprecated=False,
2702
hidden=False, experimental=False, alias=False):
2703
"""Register a BzrDirFormat factory.
2705
The factory must be a callable that takes one parameter: the key.
2706
It must produce an instance of the BzrDirFormat when called.
2708
This function mainly exists to prevent the info object from being
2711
registry.Registry.register(self, key, factory, help,
2712
BzrDirFormatInfo(native, deprecated, hidden, experimental))
2714
self._aliases.add(key)
2716
def register_lazy(self, key, module_name, member_name, help, native=True,
2717
deprecated=False, hidden=False, experimental=False, alias=False):
2718
registry.Registry.register_lazy(self, key, module_name, member_name,
2719
help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
2721
self._aliases.add(key)
2723
def set_default(self, key):
2724
"""Set the 'default' key to be a clone of the supplied key.
2726
This method must be called once and only once.
2728
registry.Registry.register(self, 'default', self.get(key),
2729
self.get_help(key), info=self.get_info(key))
2730
self._aliases.add('default')
2732
def set_default_repository(self, key):
2733
"""Set the FormatRegistry default and Repository default.
2735
This is a transitional method while Repository.set_default_format
2738
if 'default' in self:
2739
self.remove('default')
2740
self.set_default(key)
2741
format = self.get('default')()
2743
def make_bzrdir(self, key):
2744
return self.get(key)()
2746
def help_topic(self, topic):
2747
output = textwrap.dedent("""\
2748
These formats can be used for creating branches, working trees, and
2752
default_realkey = None
2753
default_help = self.get_help('default')
2755
for key in self.keys():
2756
if key == 'default':
2758
help = self.get_help(key)
2759
if help == default_help:
2760
default_realkey = key
2762
help_pairs.append((key, help))
2764
def wrapped(key, help, info):
2766
help = '(native) ' + help
2767
return ':%s:\n%s\n\n' % (key,
2768
textwrap.fill(help, initial_indent=' ',
2769
subsequent_indent=' '))
2770
if default_realkey is not None:
2771
output += wrapped(default_realkey, '(default) %s' % default_help,
2772
self.get_info('default'))
2773
deprecated_pairs = []
2774
experimental_pairs = []
2775
for key, help in help_pairs:
2776
info = self.get_info(key)
2779
elif info.deprecated:
2780
deprecated_pairs.append((key, help))
2781
elif info.experimental:
2782
experimental_pairs.append((key, help))
2784
output += wrapped(key, help, info)
2785
if len(experimental_pairs) > 0:
2786
output += "Experimental formats are shown below.\n\n"
2787
for key, help in experimental_pairs:
2788
info = self.get_info(key)
2789
output += wrapped(key, help, info)
2790
if len(deprecated_pairs) > 0:
2791
output += "Deprecated formats are shown below.\n\n"
2792
for key, help in deprecated_pairs:
2793
info = self.get_info(key)
2794
output += wrapped(key, help, info)
2799
class RepositoryAcquisitionPolicy(object):
2800
"""Abstract base class for repository acquisition policies.
2802
A repository acquisition policy decides how a BzrDir acquires a repository
2803
for a branch that is being created. The most basic policy decision is
2804
whether to create a new repository or use an existing one.
2806
def __init__(self, stack_on, stack_on_pwd, require_stacking):
2809
:param stack_on: A location to stack on
2810
:param stack_on_pwd: If stack_on is relative, the location it is
2812
:param require_stacking: If True, it is a failure to not stack.
2814
self._stack_on = stack_on
2815
self._stack_on_pwd = stack_on_pwd
2816
self._require_stacking = require_stacking
2818
def configure_branch(self, branch):
2819
"""Apply any configuration data from this policy to the branch.
2821
Default implementation sets repository stacking.
2823
if self._stack_on is None:
2825
if self._stack_on_pwd is None:
2826
stack_on = self._stack_on
2829
stack_on = urlutils.rebase_url(self._stack_on,
2831
branch.bzrdir.root_transport.base)
2832
except errors.InvalidRebaseURLs:
2833
stack_on = self._get_full_stack_on()
2835
branch.set_stacked_on_url(stack_on)
2836
except errors.UnstackableBranchFormat:
2837
if self._require_stacking:
2840
def _get_full_stack_on(self):
2841
"""Get a fully-qualified URL for the stack_on location."""
2842
if self._stack_on is None:
2844
if self._stack_on_pwd is None:
2845
return self._stack_on
2847
return urlutils.join(self._stack_on_pwd, self._stack_on)
2849
def _add_fallback(self, repository):
2850
"""Add a fallback to the supplied repository, if stacking is set."""
2851
stack_on = self._get_full_stack_on()
2852
if stack_on is None:
2854
stacked_dir = BzrDir.open(stack_on)
2856
stacked_repo = stacked_dir.open_branch().repository
2857
except errors.NotBranchError:
2858
stacked_repo = stacked_dir.open_repository()
2860
repository.add_fallback_repository(stacked_repo)
2861
except errors.UnstackableRepositoryFormat:
2862
if self._require_stacking:
2865
def acquire_repository(self, make_working_trees=None, shared=False):
2866
"""Acquire a repository for this bzrdir.
2868
Implementations may create a new repository or use a pre-exising
2870
:param make_working_trees: If creating a repository, set
2871
make_working_trees to this value (if non-None)
2872
:param shared: If creating a repository, make it shared if True
2873
:return: A repository
2875
raise NotImplemented(RepositoryAcquisitionPolicy.acquire_repository)
2878
class CreateRepository(RepositoryAcquisitionPolicy):
2879
"""A policy of creating a new repository"""
2881
def __init__(self, bzrdir, stack_on=None, stack_on_pwd=None,
2882
require_stacking=False):
2885
:param bzrdir: The bzrdir to create the repository on.
2886
:param stack_on: A location to stack on
2887
:param stack_on_pwd: If stack_on is relative, the location it is
2890
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2892
self._bzrdir = bzrdir
2894
def acquire_repository(self, make_working_trees=None, shared=False):
2895
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2897
Creates the desired repository in the bzrdir we already have.
2899
if self._stack_on or self._require_stacking:
2900
# we may be coming from a format that doesn't support stacking,
2901
# but we require it in the destination, so force creation of a new
2904
# TODO: perhaps this should be treated as a distinct repository
2905
# acquisition policy?
2906
repository_format = self._bzrdir._format.repository_format
2907
if not repository_format.supports_external_lookups:
2908
# should possibly be controlled by the registry rather than
2910
from bzrlib.repofmt import pack_repo
2911
if repository_format.rich_root_data:
2912
repository_format = \
2913
pack_repo.RepositoryFormatKnitPack5RichRoot()
2915
repository_format = pack_repo.RepositoryFormatKnitPack5()
2916
note("using %r for stacking" % (repository_format,))
2917
repository = repository_format.initialize(self._bzrdir,
2921
repository = self._bzrdir.create_repository(shared=shared)
2922
self._add_fallback(repository)
2923
if make_working_trees is not None:
2924
repository.set_make_working_trees(make_working_trees)
2928
class UseExistingRepository(RepositoryAcquisitionPolicy):
2929
"""A policy of reusing an existing repository"""
2931
def __init__(self, repository, stack_on=None, stack_on_pwd=None,
2932
require_stacking=False):
2935
:param repository: The repository to use.
2936
:param stack_on: A location to stack on
2937
:param stack_on_pwd: If stack_on is relative, the location it is
2940
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2942
self._repository = repository
2944
def acquire_repository(self, make_working_trees=None, shared=False):
2945
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2947
Returns an existing repository to use
2949
self._add_fallback(self._repository)
2950
return self._repository
2953
format_registry = BzrDirFormatRegistry()
2954
format_registry.register('weave', BzrDirFormat6,
2955
'Pre-0.8 format. Slower than knit and does not'
2956
' support checkouts or shared repositories.',
2958
format_registry.register_metadir('knit',
2959
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2960
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2961
branch_format='bzrlib.branch.BzrBranchFormat5',
2962
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2963
format_registry.register_metadir('metaweave',
2964
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2965
'Transitional format in 0.8. Slower than knit.',
2966
branch_format='bzrlib.branch.BzrBranchFormat5',
2967
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2969
format_registry.register_metadir('dirstate',
2970
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2971
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2972
'above when accessed over the network.',
2973
branch_format='bzrlib.branch.BzrBranchFormat5',
2974
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2975
# directly from workingtree_4 triggers a circular import.
2976
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2978
format_registry.register_metadir('dirstate-tags',
2979
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2980
help='New in 0.15: Fast local operations and improved scaling for '
2981
'network operations. Additionally adds support for tags.'
2982
' Incompatible with bzr < 0.15.',
2983
branch_format='bzrlib.branch.BzrBranchFormat6',
2984
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2986
format_registry.register_metadir('rich-root',
2987
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
2988
help='New in 1.0. Better handling of tree roots. Incompatible with'
2990
branch_format='bzrlib.branch.BzrBranchFormat6',
2991
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2993
format_registry.register_metadir('dirstate-with-subtree',
2994
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2995
help='New in 0.15: Fast local operations and improved scaling for '
2996
'network operations. Additionally adds support for versioning nested '
2997
'bzr branches. Incompatible with bzr < 0.15.',
2998
branch_format='bzrlib.branch.BzrBranchFormat6',
2999
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3003
format_registry.register_metadir('pack-0.92',
3004
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack1',
3005
help='New in 0.92: Pack-based format with data compatible with '
3006
'dirstate-tags format repositories. Interoperates with '
3007
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3008
'Previously called knitpack-experimental. '
3009
'For more information, see '
3010
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3011
branch_format='bzrlib.branch.BzrBranchFormat6',
3012
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3014
format_registry.register_metadir('pack-0.92-subtree',
3015
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack3',
3016
help='New in 0.92: Pack-based format with data compatible with '
3017
'dirstate-with-subtree format repositories. Interoperates with '
3018
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3019
'Previously called knitpack-experimental. '
3020
'For more information, see '
3021
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3022
branch_format='bzrlib.branch.BzrBranchFormat6',
3023
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3027
format_registry.register_metadir('rich-root-pack',
3028
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack4',
3029
help='New in 1.0: Pack-based format with data compatible with '
3030
'rich-root format repositories. Incompatible with'
3032
branch_format='bzrlib.branch.BzrBranchFormat6',
3033
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3035
format_registry.register_metadir('1.6',
3036
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5',
3037
help='A branch and pack based repository that supports stacking. ',
3038
branch_format='bzrlib.branch.BzrBranchFormat7',
3039
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3041
format_registry.register_metadir('1.6-rich-root',
3042
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5RichRoot',
3043
help='A branch and pack based repository that supports stacking '
3044
'and rich root data (needed for bzr-svn). ',
3045
branch_format='bzrlib.branch.BzrBranchFormat7',
3046
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3048
# The following two formats should always just be aliases.
3049
format_registry.register_metadir('development',
3050
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3051
help='Current development format. Can convert data to and from pack-0.92 '
3052
'(and anything compatible with pack-0.92) format repositories. '
3053
'Repositories and branches in this format can only be read by bzr.dev. '
3055
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3057
branch_format='bzrlib.branch.BzrBranchFormat7',
3058
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3062
format_registry.register_metadir('development-subtree',
3063
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3064
help='Current development format, subtree variant. Can convert data to and '
3065
'from pack-0.92-subtree (and anything compatible with '
3066
'pack-0.92-subtree) format repositories. Repositories and branches in '
3067
'this format can only be read by bzr.dev. Please read '
3068
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3070
branch_format='bzrlib.branch.BzrBranchFormat7',
3071
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3075
# And the development formats which the will have aliased one of follow:
3076
format_registry.register_metadir('development0',
3077
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0',
3078
help='Trivial rename of pack-0.92 to provide a development format. '
3080
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3082
branch_format='bzrlib.branch.BzrBranchFormat6',
3083
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3087
format_registry.register_metadir('development0-subtree',
3088
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0Subtree',
3089
help='Trivial rename of pack-0.92-subtree to provide a development format. '
3091
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3093
branch_format='bzrlib.branch.BzrBranchFormat6',
3094
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3098
format_registry.register_metadir('development1',
3099
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3100
help='A branch and pack based repository that supports stacking. '
3102
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3104
branch_format='bzrlib.branch.BzrBranchFormat7',
3105
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3109
format_registry.register_metadir('development1-subtree',
3110
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3111
help='A branch and pack based repository that supports stacking. '
3113
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3115
branch_format='bzrlib.branch.BzrBranchFormat7',
3116
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3120
# The current format that is made on 'bzr init'.
3121
format_registry.set_default('pack-0.92')
added
removed
bzrlib/bzrdir.py
