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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)
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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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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)
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return BzrDir.open_from_transport(t, _unsupported=_unsupported)
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def open_from_transport(transport, _unsupported=False,
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_server_formats=True):
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"""Open a bzrdir within a particular directory.
770
:param transport: Transport containing the bzrdir.
771
:param _unsupported: private.
773
base = transport.base
775
def find_format(transport):
776
return transport, BzrDirFormat.find_format(
777
transport, _server_formats=_server_formats)
779
def redirected(transport, e, redirection_notice):
780
qualified_source = e.get_source_url()
781
relpath = transport.relpath(qualified_source)
782
if not e.target.endswith(relpath):
783
# Not redirected to a branch-format, not a branch
784
raise errors.NotBranchError(path=e.target)
785
target = e.target[:-len(relpath)]
786
note('%s is%s redirected to %s',
787
transport.base, e.permanently, target)
788
# Let's try with a new transport
789
# FIXME: If 'transport' has a qualifier, this should
790
# be applied again to the new transport *iff* the
791
# schemes used are the same. Uncomment this code
792
# once the function (and tests) exist.
794
#target = urlutils.copy_url_qualifiers(original, target)
795
return get_transport(target)
798
transport, format = do_catching_redirections(find_format,
801
except errors.TooManyRedirections:
802
raise errors.NotBranchError(base)
804
BzrDir._check_supported(format, _unsupported)
805
return format.open(transport, _found=True)
807
def open_branch(self, unsupported=False):
808
"""Open the branch object at this BzrDir if one is present.
810
If unsupported is True, then no longer supported branch formats can
813
TODO: static convenience version of this?
815
raise NotImplementedError(self.open_branch)
818
def open_containing(url, possible_transports=None):
819
"""Open an existing branch which contains url.
821
:param url: url to search from.
822
See open_containing_from_transport for more detail.
824
transport = get_transport(url, possible_transports)
825
return BzrDir.open_containing_from_transport(transport)
828
def open_containing_from_transport(a_transport):
829
"""Open an existing branch which contains a_transport.base.
831
This probes for a branch at a_transport, and searches upwards from there.
833
Basically we keep looking up until we find the control directory or
834
run into the root. If there isn't one, raises NotBranchError.
835
If there is one and it is either an unrecognised format or an unsupported
836
format, UnknownFormatError or UnsupportedFormatError are raised.
837
If there is one, it is returned, along with the unused portion of url.
839
:return: The BzrDir that contains the path, and a Unicode path
840
for the rest of the URL.
842
# this gets the normalised url back. I.e. '.' -> the full path.
843
url = a_transport.base
846
result = BzrDir.open_from_transport(a_transport)
847
return result, urlutils.unescape(a_transport.relpath(url))
848
except errors.NotBranchError, e:
851
new_t = a_transport.clone('..')
852
except errors.InvalidURLJoin:
853
# reached the root, whatever that may be
854
raise errors.NotBranchError(path=url)
855
if new_t.base == a_transport.base:
856
# reached the root, whatever that may be
857
raise errors.NotBranchError(path=url)
860
def _get_tree_branch(self):
861
"""Return the branch and tree, if any, for this bzrdir.
863
Return None for tree if not present or inaccessible.
864
Raise NotBranchError if no branch is present.
865
:return: (tree, branch)
868
tree = self.open_workingtree()
869
except (errors.NoWorkingTree, errors.NotLocalUrl):
871
branch = self.open_branch()
877
def open_tree_or_branch(klass, location):
878
"""Return the branch and working tree at a location.
880
If there is no tree at the location, tree will be None.
881
If there is no branch at the location, an exception will be
883
:return: (tree, branch)
885
bzrdir = klass.open(location)
886
return bzrdir._get_tree_branch()
889
def open_containing_tree_or_branch(klass, location):
890
"""Return the branch and working tree contained by a location.
892
Returns (tree, branch, relpath).
893
If there is no tree at containing the location, tree will be None.
894
If there is no branch containing the location, an exception will be
896
relpath is the portion of the path that is contained by the branch.
898
bzrdir, relpath = klass.open_containing(location)
899
tree, branch = bzrdir._get_tree_branch()
900
return tree, branch, relpath
903
def open_containing_tree_branch_or_repository(klass, location):
904
"""Return the working tree, branch and repo contained by a location.
906
Returns (tree, branch, repository, relpath).
907
If there is no tree containing the location, tree will be None.
908
If there is no branch containing the location, branch will be None.
909
If there is no repository containing the location, repository will be
911
relpath is the portion of the path that is contained by the innermost
914
If no tree, branch or repository is found, a NotBranchError is raised.
916
bzrdir, relpath = klass.open_containing(location)
918
tree, branch = bzrdir._get_tree_branch()
919
except errors.NotBranchError:
921
repo = bzrdir.find_repository()
922
return None, None, repo, relpath
923
except (errors.NoRepositoryPresent):
924
raise errors.NotBranchError(location)
925
return tree, branch, branch.repository, relpath
927
def open_repository(self, _unsupported=False):
928
"""Open the repository object at this BzrDir if one is present.
930
This will not follow the Branch object pointer - it's strictly a direct
931
open facility. Most client code should use open_branch().repository to
934
:param _unsupported: a private parameter, not part of the api.
935
TODO: static convenience version of this?
937
raise NotImplementedError(self.open_repository)
939
def open_workingtree(self, _unsupported=False,
940
recommend_upgrade=True, from_branch=None):
941
"""Open the workingtree object at this BzrDir if one is present.
943
:param recommend_upgrade: Optional keyword parameter, when True (the
944
default), emit through the ui module a recommendation that the user
945
upgrade the working tree when the workingtree being opened is old
946
(but still fully supported).
947
:param from_branch: override bzrdir branch (for lightweight checkouts)
949
raise NotImplementedError(self.open_workingtree)
951
def has_branch(self):
952
"""Tell if this bzrdir contains a branch.
954
Note: if you're going to open the branch, you should just go ahead
955
and try, and not ask permission first. (This method just opens the
956
branch and discards it, and that's somewhat expensive.)
961
except errors.NotBranchError:
964
def has_workingtree(self):
965
"""Tell if this bzrdir contains a working tree.
967
This will still raise an exception if the bzrdir has a workingtree that
968
is remote & inaccessible.
970
Note: if you're going to open the working tree, you should just go ahead
971
and try, and not ask permission first. (This method just opens the
972
workingtree and discards it, and that's somewhat expensive.)
975
self.open_workingtree(recommend_upgrade=False)
977
except errors.NoWorkingTree:
980
def _cloning_metadir(self):
981
"""Produce a metadir suitable for cloning with."""
982
result_format = self._format.__class__()
985
branch = self.open_branch()
986
source_repository = branch.repository
987
except errors.NotBranchError:
989
source_repository = self.open_repository()
990
except errors.NoRepositoryPresent:
991
source_repository = None
993
# XXX TODO: This isinstance is here because we have not implemented
994
# the fix recommended in bug # 103195 - to delegate this choice the
996
repo_format = source_repository._format
997
if not isinstance(repo_format, remote.RemoteRepositoryFormat):
998
result_format.repository_format = repo_format
1000
# TODO: Couldn't we just probe for the format in these cases,
1001
# rather than opening the whole tree? It would be a little
1002
# faster. mbp 20070401
1003
tree = self.open_workingtree(recommend_upgrade=False)
1004
except (errors.NoWorkingTree, errors.NotLocalUrl):
1005
result_format.workingtree_format = None
1007
result_format.workingtree_format = tree._format.__class__()
1008
return result_format, source_repository
1010
def cloning_metadir(self):
1011
"""Produce a metadir suitable for cloning or sprouting with.
1013
These operations may produce workingtrees (yes, even though they're
1014
"cloning" something that doesn't have a tree), so a viable workingtree
1015
format must be selected.
1017
format, repository = self._cloning_metadir()
1018
if format._workingtree_format is None:
1019
if repository is None:
1021
tree_format = repository._format._matchingbzrdir.workingtree_format
1022
format.workingtree_format = tree_format.__class__()
1025
def checkout_metadir(self):
1026
return self.cloning_metadir()
1028
def sprout(self, url, revision_id=None, force_new_repo=False,
1029
recurse='down', possible_transports=None,
1030
accelerator_tree=None, hardlink=False, stacked=False):
1031
"""Create a copy of this bzrdir prepared for use as a new line of
1034
If url's last component does not exist, it will be created.
1036
Attributes related to the identity of the source branch like
1037
branch nickname will be cleaned, a working tree is created
1038
whether one existed before or not; and a local branch is always
1041
if revision_id is not None, then the clone operation may tune
1042
itself to download less data.
1043
:param accelerator_tree: A tree which can be used for retrieving file
1044
contents more quickly than the revision tree, i.e. a workingtree.
1045
The revision tree will be used for cases where accelerator_tree's
1046
content is different.
1047
:param hardlink: If true, hard-link files from accelerator_tree,
1049
:param stacked: If true, create a stacked branch referring to the
1050
location of this control directory.
1052
target_transport = get_transport(url, possible_transports)
1053
target_transport.ensure_base()
1054
cloning_format = self.cloning_metadir()
1055
result = cloning_format.initialize_on_transport(target_transport)
1057
source_branch = self.open_branch()
1058
source_repository = source_branch.repository
1060
stacked_branch_url = self.root_transport.base
1063
stacked_branch_url = source_branch.get_stacked_on_url()
1064
except (errors.NotStacked, errors.UnstackableBranchFormat,
1065
errors.UnstackableRepositoryFormat):
1066
stacked_branch_url = None
1067
except errors.NotBranchError:
1068
source_branch = None
1070
source_repository = self.open_repository()
1071
except errors.NoRepositoryPresent:
1072
source_repository = None
1073
stacked_branch_url = None
1074
repository_policy = result.determine_repository_policy(
1075
force_new_repo, stacked_branch_url, require_stacking=stacked)
1076
result_repo = repository_policy.acquire_repository()
1077
if source_repository is not None:
1078
result_repo.fetch(source_repository, revision_id=revision_id)
1080
# Create/update the result branch
1081
if source_branch is not None:
1082
result_branch = source_branch.sprout(result,
1083
revision_id=revision_id)
1085
result_branch = result.create_branch()
1086
repository_policy.configure_branch(result_branch)
1088
# Create/update the result working tree
1089
if isinstance(target_transport, LocalTransport) and (
1090
result_repo is None or result_repo.make_working_trees()):
1091
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
1095
if wt.path2id('') is None:
1097
wt.set_root_id(self.open_workingtree.get_root_id())
1098
except errors.NoWorkingTree:
1104
if recurse == 'down':
1106
basis = wt.basis_tree()
1108
subtrees = basis.iter_references()
1109
elif source_branch is not None:
1110
basis = source_branch.basis_tree()
1112
subtrees = basis.iter_references()
1117
for path, file_id in subtrees:
1118
target = urlutils.join(url, urlutils.escape(path))
1119
sublocation = source_branch.reference_parent(file_id, path)
1120
sublocation.bzrdir.sprout(target,
1121
basis.get_reference_revision(file_id, path),
1122
force_new_repo=force_new_repo, recurse=recurse,
1125
if basis is not None:
1130
class BzrDirPreSplitOut(BzrDir):
1131
"""A common class for the all-in-one formats."""
1133
def __init__(self, _transport, _format):
1134
"""See BzrDir.__init__."""
1135
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
1136
self._control_files = lockable_files.LockableFiles(
1137
self.get_branch_transport(None),
1138
self._format._lock_file_name,
1139
self._format._lock_class)
1141
def break_lock(self):
1142
"""Pre-splitout bzrdirs do not suffer from stale locks."""
1143
raise NotImplementedError(self.break_lock)
1145
def cloning_metadir(self):
1146
"""Produce a metadir suitable for cloning with."""
1147
return self._format.__class__()
1149
def clone(self, url, revision_id=None, force_new_repo=False,
1150
preserve_stacking=False):
1151
"""See BzrDir.clone().
1153
force_new_repo has no effect, since this family of formats always
1154
require a new repository.
1155
preserve_stacking has no effect, since no source branch using this
1156
family of formats can be stacked, so there is no stacking to preserve.
1158
from bzrlib.workingtree import WorkingTreeFormat2
1159
self._make_tail(url)
1160
result = self._format._initialize_for_clone(url)
1161
self.open_repository().clone(result, revision_id=revision_id)
1162
from_branch = self.open_branch()
1163
from_branch.clone(result, revision_id=revision_id)
1165
self.open_workingtree().clone(result)
1166
except errors.NotLocalUrl:
1167
# make a new one, this format always has to have one.
1169
WorkingTreeFormat2().initialize(result)
1170
except errors.NotLocalUrl:
1171
# but we cannot do it for remote trees.
1172
to_branch = result.open_branch()
1173
WorkingTreeFormat2()._stub_initialize_remote(to_branch)
1176
def create_branch(self):
1177
"""See BzrDir.create_branch."""
1178
return self.open_branch()
1180
def destroy_branch(self):
1181
"""See BzrDir.destroy_branch."""
1182
raise errors.UnsupportedOperation(self.destroy_branch, self)
1184
def create_repository(self, shared=False):
1185
"""See BzrDir.create_repository."""
1187
raise errors.IncompatibleFormat('shared repository', self._format)
1188
return self.open_repository()
1190
def destroy_repository(self):
1191
"""See BzrDir.destroy_repository."""
1192
raise errors.UnsupportedOperation(self.destroy_repository, self)
1194
def create_workingtree(self, revision_id=None, from_branch=None,
1195
accelerator_tree=None, hardlink=False):
1196
"""See BzrDir.create_workingtree."""
1197
# this looks buggy but is not -really-
1198
# because this format creates the workingtree when the bzrdir is
1200
# clone and sprout will have set the revision_id
1201
# and that will have set it for us, its only
1202
# specific uses of create_workingtree in isolation
1203
# that can do wonky stuff here, and that only
1204
# happens for creating checkouts, which cannot be
1205
# done on this format anyway. So - acceptable wart.
1206
result = self.open_workingtree(recommend_upgrade=False)
1207
if revision_id is not None:
1208
if revision_id == _mod_revision.NULL_REVISION:
1209
result.set_parent_ids([])
1211
result.set_parent_ids([revision_id])
1214
def destroy_workingtree(self):
1215
"""See BzrDir.destroy_workingtree."""
1216
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
1218
def destroy_workingtree_metadata(self):
1219
"""See BzrDir.destroy_workingtree_metadata."""
1220
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
1223
def get_branch_transport(self, branch_format):
1224
"""See BzrDir.get_branch_transport()."""
1225
if branch_format is None:
1226
return self.transport
1228
branch_format.get_format_string()
1229
except NotImplementedError:
1230
return self.transport
1231
raise errors.IncompatibleFormat(branch_format, self._format)
1233
def get_repository_transport(self, repository_format):
1234
"""See BzrDir.get_repository_transport()."""
1235
if repository_format is None:
1236
return self.transport
1238
repository_format.get_format_string()
1239
except NotImplementedError:
1240
return self.transport
1241
raise errors.IncompatibleFormat(repository_format, self._format)
1243
def get_workingtree_transport(self, workingtree_format):
1244
"""See BzrDir.get_workingtree_transport()."""
1245
if workingtree_format is None:
1246
return self.transport
1248
workingtree_format.get_format_string()
1249
except NotImplementedError:
1250
return self.transport
1251
raise errors.IncompatibleFormat(workingtree_format, self._format)
1253
def needs_format_conversion(self, format=None):
1254
"""See BzrDir.needs_format_conversion()."""
1255
# if the format is not the same as the system default,
1256
# an upgrade is needed.
1258
format = BzrDirFormat.get_default_format()
1259
return not isinstance(self._format, format.__class__)
1261
def open_branch(self, unsupported=False):
1262
"""See BzrDir.open_branch."""
1263
from bzrlib.branch import BzrBranchFormat4
1264
format = BzrBranchFormat4()
1265
self._check_supported(format, unsupported)
1266
return format.open(self, _found=True)
1268
def sprout(self, url, revision_id=None, force_new_repo=False,
1269
possible_transports=None, accelerator_tree=None,
1270
hardlink=False, stacked=False):
1271
"""See BzrDir.sprout()."""
1273
raise errors.UnstackableBranchFormat(
1274
self._format, self.root_transport.base)
1275
from bzrlib.workingtree import WorkingTreeFormat2
1276
self._make_tail(url)
1277
result = self._format._initialize_for_clone(url)
1279
self.open_repository().clone(result, revision_id=revision_id)
1280
except errors.NoRepositoryPresent:
1283
self.open_branch().sprout(result, revision_id=revision_id)
1284
except errors.NotBranchError:
1286
# we always want a working tree
1287
WorkingTreeFormat2().initialize(result,
1288
accelerator_tree=accelerator_tree,
1293
class BzrDir4(BzrDirPreSplitOut):
1294
"""A .bzr version 4 control object.
1296
This is a deprecated format and may be removed after sept 2006.
1299
def create_repository(self, shared=False):
1300
"""See BzrDir.create_repository."""
1301
return self._format.repository_format.initialize(self, shared)
1303
def needs_format_conversion(self, format=None):
1304
"""Format 4 dirs are always in need of conversion."""
1307
def open_repository(self):
1308
"""See BzrDir.open_repository."""
1309
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1310
return RepositoryFormat4().open(self, _found=True)
1313
class BzrDir5(BzrDirPreSplitOut):
1314
"""A .bzr version 5 control object.
1316
This is a deprecated format and may be removed after sept 2006.
1319
def open_repository(self):
1320
"""See BzrDir.open_repository."""
1321
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1322
return RepositoryFormat5().open(self, _found=True)
1324
def open_workingtree(self, _unsupported=False,
1325
recommend_upgrade=True):
1326
"""See BzrDir.create_workingtree."""
1327
from bzrlib.workingtree import WorkingTreeFormat2
1328
wt_format = WorkingTreeFormat2()
1329
# we don't warn here about upgrades; that ought to be handled for the
1331
return wt_format.open(self, _found=True)
1334
class BzrDir6(BzrDirPreSplitOut):
1335
"""A .bzr version 6 control object.
1337
This is a deprecated format and may be removed after sept 2006.
1340
def open_repository(self):
1341
"""See BzrDir.open_repository."""
1342
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1343
return RepositoryFormat6().open(self, _found=True)
1345
def open_workingtree(self, _unsupported=False,
1346
recommend_upgrade=True):
1347
"""See BzrDir.create_workingtree."""
1348
# we don't warn here about upgrades; that ought to be handled for the
1350
from bzrlib.workingtree import WorkingTreeFormat2
1351
return WorkingTreeFormat2().open(self, _found=True)
1354
class BzrDirMeta1(BzrDir):
1355
"""A .bzr meta version 1 control object.
1357
This is the first control object where the
1358
individual aspects are really split out: there are separate repository,
1359
workingtree and branch subdirectories and any subset of the three can be
1360
present within a BzrDir.
1363
def can_convert_format(self):
1364
"""See BzrDir.can_convert_format()."""
1367
def create_branch(self):
1368
"""See BzrDir.create_branch."""
1369
return self._format.get_branch_format().initialize(self)
1371
def destroy_branch(self):
1372
"""See BzrDir.create_branch."""
1373
self.transport.delete_tree('branch')
1375
def create_repository(self, shared=False):
1376
"""See BzrDir.create_repository."""
1377
return self._format.repository_format.initialize(self, shared)
1379
def destroy_repository(self):
1380
"""See BzrDir.destroy_repository."""
1381
self.transport.delete_tree('repository')
1383
def create_workingtree(self, revision_id=None, from_branch=None,
1384
accelerator_tree=None, hardlink=False):
1385
"""See BzrDir.create_workingtree."""
1386
return self._format.workingtree_format.initialize(
1387
self, revision_id, from_branch=from_branch,
1388
accelerator_tree=accelerator_tree, hardlink=hardlink)
1390
def destroy_workingtree(self):
1391
"""See BzrDir.destroy_workingtree."""
1392
wt = self.open_workingtree(recommend_upgrade=False)
1393
repository = wt.branch.repository
1394
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1395
wt.revert(old_tree=empty)
1396
self.destroy_workingtree_metadata()
1398
def destroy_workingtree_metadata(self):
1399
self.transport.delete_tree('checkout')
1401
def find_branch_format(self):
1402
"""Find the branch 'format' for this bzrdir.
1404
This might be a synthetic object for e.g. RemoteBranch and SVN.
1406
from bzrlib.branch import BranchFormat
1407
return BranchFormat.find_format(self)
1409
def _get_mkdir_mode(self):
1410
"""Figure out the mode to use when creating a bzrdir subdir."""
1411
temp_control = lockable_files.LockableFiles(self.transport, '',
1412
lockable_files.TransportLock)
1413
return temp_control._dir_mode
1415
def get_branch_reference(self):
1416
"""See BzrDir.get_branch_reference()."""
1417
from bzrlib.branch import BranchFormat
1418
format = BranchFormat.find_format(self)
1419
return format.get_reference(self)
1421
def get_branch_transport(self, branch_format):
1422
"""See BzrDir.get_branch_transport()."""
1423
if branch_format is None:
1424
return self.transport.clone('branch')
1426
branch_format.get_format_string()
1427
except NotImplementedError:
1428
raise errors.IncompatibleFormat(branch_format, self._format)
1430
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1431
except errors.FileExists:
1433
return self.transport.clone('branch')
1435
def get_repository_transport(self, repository_format):
1436
"""See BzrDir.get_repository_transport()."""
1437
if repository_format is None:
1438
return self.transport.clone('repository')
1440
repository_format.get_format_string()
1441
except NotImplementedError:
1442
raise errors.IncompatibleFormat(repository_format, self._format)
1444
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1445
except errors.FileExists:
1447
return self.transport.clone('repository')
1449
def get_workingtree_transport(self, workingtree_format):
1450
"""See BzrDir.get_workingtree_transport()."""
1451
if workingtree_format is None:
1452
return self.transport.clone('checkout')
1454
workingtree_format.get_format_string()
1455
except NotImplementedError:
1456
raise errors.IncompatibleFormat(workingtree_format, self._format)
1458
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1459
except errors.FileExists:
1461
return self.transport.clone('checkout')
1463
def needs_format_conversion(self, format=None):
1464
"""See BzrDir.needs_format_conversion()."""
1466
format = BzrDirFormat.get_default_format()
1467
if not isinstance(self._format, format.__class__):
1468
# it is not a meta dir format, conversion is needed.
1470
# we might want to push this down to the repository?
1472
if not isinstance(self.open_repository()._format,
1473
format.repository_format.__class__):
1474
# the repository needs an upgrade.
1476
except errors.NoRepositoryPresent:
1479
if not isinstance(self.open_branch()._format,
1480
format.get_branch_format().__class__):
1481
# the branch needs an upgrade.
1483
except errors.NotBranchError:
1486
my_wt = self.open_workingtree(recommend_upgrade=False)
1487
if not isinstance(my_wt._format,
1488
format.workingtree_format.__class__):
1489
# the workingtree needs an upgrade.
1491
except (errors.NoWorkingTree, errors.NotLocalUrl):
1495
def open_branch(self, unsupported=False):
1496
"""See BzrDir.open_branch."""
1497
format = self.find_branch_format()
1498
self._check_supported(format, unsupported)
1499
return format.open(self, _found=True)
1501
def open_repository(self, unsupported=False):
1502
"""See BzrDir.open_repository."""
1503
from bzrlib.repository import RepositoryFormat
1504
format = RepositoryFormat.find_format(self)
1505
self._check_supported(format, unsupported)
1506
return format.open(self, _found=True)
1508
def open_workingtree(self, unsupported=False,
1509
recommend_upgrade=True):
1510
"""See BzrDir.open_workingtree."""
1511
from bzrlib.workingtree import WorkingTreeFormat
1512
format = WorkingTreeFormat.find_format(self)
1513
self._check_supported(format, unsupported,
1515
basedir=self.root_transport.base)
1516
return format.open(self, _found=True)
1518
def _get_config(self):
1519
return config.BzrDirConfig(self.transport)
1522
class BzrDirFormat(object):
1523
"""An encapsulation of the initialization and open routines for a format.
1525
Formats provide three things:
1526
* An initialization routine,
1530
Formats are placed in a dict by their format string for reference
1531
during bzrdir opening. These should be subclasses of BzrDirFormat
1534
Once a format is deprecated, just deprecate the initialize and open
1535
methods on the format class. Do not deprecate the object, as the
1536
object will be created every system load.
1539
_default_format = None
1540
"""The default format used for new .bzr dirs."""
1543
"""The known formats."""
1545
_control_formats = []
1546
"""The registered control formats - .bzr, ....
1548
This is a list of BzrDirFormat objects.
1551
_control_server_formats = []
1552
"""The registered control server formats, e.g. RemoteBzrDirs.
1554
This is a list of BzrDirFormat objects.
1557
_lock_file_name = 'branch-lock'
1559
# _lock_class must be set in subclasses to the lock type, typ.
1560
# TransportLock or LockDir
1563
def find_format(klass, transport, _server_formats=True):
1564
"""Return the format present at transport."""
1566
formats = klass._control_server_formats + klass._control_formats
1568
formats = klass._control_formats
1569
for format in formats:
1571
return format.probe_transport(transport)
1572
except errors.NotBranchError:
1573
# this format does not find a control dir here.
1575
raise errors.NotBranchError(path=transport.base)
1578
def probe_transport(klass, transport):
1579
"""Return the .bzrdir style format present in a directory."""
1581
format_string = transport.get(".bzr/branch-format").read()
1582
except errors.NoSuchFile:
1583
raise errors.NotBranchError(path=transport.base)
1586
return klass._formats[format_string]
1588
raise errors.UnknownFormatError(format=format_string, kind='bzrdir')
1591
def get_default_format(klass):
1592
"""Return the current default format."""
1593
return klass._default_format
1595
def get_format_string(self):
1596
"""Return the ASCII format string that identifies this format."""
1597
raise NotImplementedError(self.get_format_string)
1599
def get_format_description(self):
1600
"""Return the short description for this format."""
1601
raise NotImplementedError(self.get_format_description)
1603
def get_converter(self, format=None):
1604
"""Return the converter to use to convert bzrdirs needing converts.
1606
This returns a bzrlib.bzrdir.Converter object.
1608
This should return the best upgrader to step this format towards the
1609
current default format. In the case of plugins we can/should provide
1610
some means for them to extend the range of returnable converters.
1612
:param format: Optional format to override the default format of the
1615
raise NotImplementedError(self.get_converter)
1617
def initialize(self, url, possible_transports=None):
1618
"""Create a bzr control dir at this url and return an opened copy.
1620
Subclasses should typically override initialize_on_transport
1621
instead of this method.
1623
return self.initialize_on_transport(get_transport(url,
1624
possible_transports))
1626
def initialize_on_transport(self, transport):
1627
"""Initialize a new bzrdir in the base directory of a Transport."""
1628
# Since we don't have a .bzr directory, inherit the
1629
# mode from the root directory
1630
temp_control = lockable_files.LockableFiles(transport,
1631
'', lockable_files.TransportLock)
1632
temp_control._transport.mkdir('.bzr',
1633
# FIXME: RBC 20060121 don't peek under
1635
mode=temp_control._dir_mode)
1636
if sys.platform == 'win32' and isinstance(transport, LocalTransport):
1637
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
1638
file_mode = temp_control._file_mode
1640
bzrdir_transport = transport.clone('.bzr')
1641
utf8_files = [('README',
1642
"This is a Bazaar control directory.\n"
1643
"Do not change any files in this directory.\n"
1644
"See http://bazaar-vcs.org/ for more information about Bazaar.\n"),
1645
('branch-format', self.get_format_string()),
1647
# NB: no need to escape relative paths that are url safe.
1648
control_files = lockable_files.LockableFiles(bzrdir_transport,
1649
self._lock_file_name, self._lock_class)
1650
control_files.create_lock()
1651
control_files.lock_write()
1653
for (filename, content) in utf8_files:
1654
bzrdir_transport.put_bytes(filename, content,
1657
control_files.unlock()
1658
return self.open(transport, _found=True)
1660
def is_supported(self):
1661
"""Is this format supported?
1663
Supported formats must be initializable and openable.
1664
Unsupported formats may not support initialization or committing or
1665
some other features depending on the reason for not being supported.
1669
def same_model(self, target_format):
1670
return (self.repository_format.rich_root_data ==
1671
target_format.rich_root_data)
1674
def known_formats(klass):
1675
"""Return all the known formats.
1677
Concrete formats should override _known_formats.
1679
# There is double indirection here to make sure that control
1680
# formats used by more than one dir format will only be probed
1681
# once. This can otherwise be quite expensive for remote connections.
1683
for format in klass._control_formats:
1684
result.update(format._known_formats())
1688
def _known_formats(klass):
1689
"""Return the known format instances for this control format."""
1690
return set(klass._formats.values())
1692
def open(self, transport, _found=False):
1693
"""Return an instance of this format for the dir transport points at.
1695
_found is a private parameter, do not use it.
1698
found_format = BzrDirFormat.find_format(transport)
1699
if not isinstance(found_format, self.__class__):
1700
raise AssertionError("%s was asked to open %s, but it seems to need "
1702
% (self, transport, found_format))
1703
return self._open(transport)
1705
def _open(self, transport):
1706
"""Template method helper for opening BzrDirectories.
1708
This performs the actual open and any additional logic or parameter
1711
raise NotImplementedError(self._open)
1714
def register_format(klass, format):
1715
klass._formats[format.get_format_string()] = format
1718
def register_control_format(klass, format):
1719
"""Register a format that does not use '.bzr' for its control dir.
1721
TODO: This should be pulled up into a 'ControlDirFormat' base class
1722
which BzrDirFormat can inherit from, and renamed to register_format
1723
there. It has been done without that for now for simplicity of
1726
klass._control_formats.append(format)
1729
def register_control_server_format(klass, format):
1730
"""Register a control format for client-server environments.
1732
These formats will be tried before ones registered with
1733
register_control_format. This gives implementations that decide to the
1734
chance to grab it before anything looks at the contents of the format
1737
klass._control_server_formats.append(format)
1740
def _set_default_format(klass, format):
1741
"""Set default format (for testing behavior of defaults only)"""
1742
klass._default_format = format
1746
return self.get_format_string().rstrip()
1749
def unregister_format(klass, format):
1750
del klass._formats[format.get_format_string()]
1753
def unregister_control_format(klass, format):
1754
klass._control_formats.remove(format)
1757
class BzrDirFormat4(BzrDirFormat):
1758
"""Bzr dir format 4.
1760
This format is a combined format for working tree, branch and repository.
1762
- Format 1 working trees [always]
1763
- Format 4 branches [always]
1764
- Format 4 repositories [always]
1766
This format is deprecated: it indexes texts using a text it which is
1767
removed in format 5; write support for this format has been removed.
1770
_lock_class = lockable_files.TransportLock
1772
def get_format_string(self):
1773
"""See BzrDirFormat.get_format_string()."""
1774
return "Bazaar-NG branch, format 0.0.4\n"
1776
def get_format_description(self):
1777
"""See BzrDirFormat.get_format_description()."""
1778
return "All-in-one format 4"
1780
def get_converter(self, format=None):
1781
"""See BzrDirFormat.get_converter()."""
1782
# there is one and only one upgrade path here.
1783
return ConvertBzrDir4To5()
1785
def initialize_on_transport(self, transport):
1786
"""Format 4 branches cannot be created."""
1787
raise errors.UninitializableFormat(self)
1789
def is_supported(self):
1790
"""Format 4 is not supported.
1792
It is not supported because the model changed from 4 to 5 and the
1793
conversion logic is expensive - so doing it on the fly was not
1798
def _open(self, transport):
1799
"""See BzrDirFormat._open."""
1800
return BzrDir4(transport, self)
1802
def __return_repository_format(self):
1803
"""Circular import protection."""
1804
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1805
return RepositoryFormat4()
1806
repository_format = property(__return_repository_format)
1809
class BzrDirFormat5(BzrDirFormat):
1810
"""Bzr control format 5.
1812
This format is a combined format for working tree, branch and repository.
1814
- Format 2 working trees [always]
1815
- Format 4 branches [always]
1816
- Format 5 repositories [always]
1817
Unhashed stores in the repository.
1820
_lock_class = lockable_files.TransportLock
1822
def get_format_string(self):
1823
"""See BzrDirFormat.get_format_string()."""
1824
return "Bazaar-NG branch, format 5\n"
1826
def get_format_description(self):
1827
"""See BzrDirFormat.get_format_description()."""
1828
return "All-in-one format 5"
1830
def get_converter(self, format=None):
1831
"""See BzrDirFormat.get_converter()."""
1832
# there is one and only one upgrade path here.
1833
return ConvertBzrDir5To6()
1835
def _initialize_for_clone(self, url):
1836
return self.initialize_on_transport(get_transport(url), _cloning=True)
1838
def initialize_on_transport(self, transport, _cloning=False):
1839
"""Format 5 dirs always have working tree, branch and repository.
1841
Except when they are being cloned.
1843
from bzrlib.branch import BzrBranchFormat4
1844
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1845
from bzrlib.workingtree import WorkingTreeFormat2
1846
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1847
RepositoryFormat5().initialize(result, _internal=True)
1849
branch = BzrBranchFormat4().initialize(result)
1851
WorkingTreeFormat2().initialize(result)
1852
except errors.NotLocalUrl:
1853
# Even though we can't access the working tree, we need to
1854
# create its control files.
1855
WorkingTreeFormat2()._stub_initialize_remote(branch)
1858
def _open(self, transport):
1859
"""See BzrDirFormat._open."""
1860
return BzrDir5(transport, self)
1862
def __return_repository_format(self):
1863
"""Circular import protection."""
1864
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1865
return RepositoryFormat5()
1866
repository_format = property(__return_repository_format)
1869
class BzrDirFormat6(BzrDirFormat):
1870
"""Bzr control format 6.
1872
This format is a combined format for working tree, branch and repository.
1874
- Format 2 working trees [always]
1875
- Format 4 branches [always]
1876
- Format 6 repositories [always]
1879
_lock_class = lockable_files.TransportLock
1881
def get_format_string(self):
1882
"""See BzrDirFormat.get_format_string()."""
1883
return "Bazaar-NG branch, format 6\n"
1885
def get_format_description(self):
1886
"""See BzrDirFormat.get_format_description()."""
1887
return "All-in-one format 6"
1889
def get_converter(self, format=None):
1890
"""See BzrDirFormat.get_converter()."""
1891
# there is one and only one upgrade path here.
1892
return ConvertBzrDir6ToMeta()
1894
def _initialize_for_clone(self, url):
1895
return self.initialize_on_transport(get_transport(url), _cloning=True)
1897
def initialize_on_transport(self, transport, _cloning=False):
1898
"""Format 6 dirs always have working tree, branch and repository.
1900
Except when they are being cloned.
1902
from bzrlib.branch import BzrBranchFormat4
1903
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1904
from bzrlib.workingtree import WorkingTreeFormat2
1905
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1906
RepositoryFormat6().initialize(result, _internal=True)
1908
branch = BzrBranchFormat4().initialize(result)
1910
WorkingTreeFormat2().initialize(result)
1911
except errors.NotLocalUrl:
1912
# Even though we can't access the working tree, we need to
1913
# create its control files.
1914
WorkingTreeFormat2()._stub_initialize_remote(branch)
1917
def _open(self, transport):
1918
"""See BzrDirFormat._open."""
1919
return BzrDir6(transport, self)
1921
def __return_repository_format(self):
1922
"""Circular import protection."""
1923
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1924
return RepositoryFormat6()
1925
repository_format = property(__return_repository_format)
1928
class BzrDirMetaFormat1(BzrDirFormat):
1929
"""Bzr meta control format 1
1931
This is the first format with split out working tree, branch and repository
1934
- Format 3 working trees [optional]
1935
- Format 5 branches [optional]
1936
- Format 7 repositories [optional]
1939
_lock_class = lockdir.LockDir
1942
self._workingtree_format = None
1943
self._branch_format = None
1945
def __eq__(self, other):
1946
if other.__class__ is not self.__class__:
1948
if other.repository_format != self.repository_format:
1950
if other.workingtree_format != self.workingtree_format:
1954
def __ne__(self, other):
1955
return not self == other
1957
def get_branch_format(self):
1958
if self._branch_format is None:
1959
from bzrlib.branch import BranchFormat
1960
self._branch_format = BranchFormat.get_default_format()
1961
return self._branch_format
1963
def set_branch_format(self, format):
1964
self._branch_format = format
1966
def get_converter(self, format=None):
1967
"""See BzrDirFormat.get_converter()."""
1969
format = BzrDirFormat.get_default_format()
1970
if not isinstance(self, format.__class__):
1971
# converting away from metadir is not implemented
1972
raise NotImplementedError(self.get_converter)
1973
return ConvertMetaToMeta(format)
1975
def get_format_string(self):
1976
"""See BzrDirFormat.get_format_string()."""
1977
return "Bazaar-NG meta directory, format 1\n"
1979
def get_format_description(self):
1980
"""See BzrDirFormat.get_format_description()."""
1981
return "Meta directory format 1"
1983
def _open(self, transport):
1984
"""See BzrDirFormat._open."""
1985
return BzrDirMeta1(transport, self)
1987
def __return_repository_format(self):
1988
"""Circular import protection."""
1989
if getattr(self, '_repository_format', None):
1990
return self._repository_format
1991
from bzrlib.repository import RepositoryFormat
1992
return RepositoryFormat.get_default_format()
1994
def __set_repository_format(self, value):
1995
"""Allow changing the repository format for metadir formats."""
1996
self._repository_format = value
1998
repository_format = property(__return_repository_format, __set_repository_format)
2000
def __get_workingtree_format(self):
2001
if self._workingtree_format is None:
2002
from bzrlib.workingtree import WorkingTreeFormat
2003
self._workingtree_format = WorkingTreeFormat.get_default_format()
2004
return self._workingtree_format
2006
def __set_workingtree_format(self, wt_format):
2007
self._workingtree_format = wt_format
2009
workingtree_format = property(__get_workingtree_format,
2010
__set_workingtree_format)
2013
# Register bzr control format
2014
BzrDirFormat.register_control_format(BzrDirFormat)
2016
# Register bzr formats
2017
BzrDirFormat.register_format(BzrDirFormat4())
2018
BzrDirFormat.register_format(BzrDirFormat5())
2019
BzrDirFormat.register_format(BzrDirFormat6())
2020
__default_format = BzrDirMetaFormat1()
2021
BzrDirFormat.register_format(__default_format)
2022
BzrDirFormat._default_format = __default_format
2025
class Converter(object):
2026
"""Converts a disk format object from one format to another."""
2028
def convert(self, to_convert, pb):
2029
"""Perform the conversion of to_convert, giving feedback via pb.
2031
:param to_convert: The disk object to convert.
2032
:param pb: a progress bar to use for progress information.
2035
def step(self, message):
2036
"""Update the pb by a step."""
2038
self.pb.update(message, self.count, self.total)
2041
class ConvertBzrDir4To5(Converter):
2042
"""Converts format 4 bzr dirs to format 5."""
2045
super(ConvertBzrDir4To5, self).__init__()
2046
self.converted_revs = set()
2047
self.absent_revisions = set()
2051
def convert(self, to_convert, pb):
2052
"""See Converter.convert()."""
2053
self.bzrdir = to_convert
2055
self.pb.note('starting upgrade from format 4 to 5')
2056
if isinstance(self.bzrdir.transport, LocalTransport):
2057
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
2058
self._convert_to_weaves()
2059
return BzrDir.open(self.bzrdir.root_transport.base)
2061
def _convert_to_weaves(self):
2062
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
2065
stat = self.bzrdir.transport.stat('weaves')
2066
if not S_ISDIR(stat.st_mode):
2067
self.bzrdir.transport.delete('weaves')
2068
self.bzrdir.transport.mkdir('weaves')
2069
except errors.NoSuchFile:
2070
self.bzrdir.transport.mkdir('weaves')
2071
# deliberately not a WeaveFile as we want to build it up slowly.
2072
self.inv_weave = Weave('inventory')
2073
# holds in-memory weaves for all files
2074
self.text_weaves = {}
2075
self.bzrdir.transport.delete('branch-format')
2076
self.branch = self.bzrdir.open_branch()
2077
self._convert_working_inv()
2078
rev_history = self.branch.revision_history()
2079
# to_read is a stack holding the revisions we still need to process;
2080
# appending to it adds new highest-priority revisions
2081
self.known_revisions = set(rev_history)
2082
self.to_read = rev_history[-1:]
2084
rev_id = self.to_read.pop()
2085
if (rev_id not in self.revisions
2086
and rev_id not in self.absent_revisions):
2087
self._load_one_rev(rev_id)
2089
to_import = self._make_order()
2090
for i, rev_id in enumerate(to_import):
2091
self.pb.update('converting revision', i, len(to_import))
2092
self._convert_one_rev(rev_id)
2094
self._write_all_weaves()
2095
self._write_all_revs()
2096
self.pb.note('upgraded to weaves:')
2097
self.pb.note(' %6d revisions and inventories', len(self.revisions))
2098
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
2099
self.pb.note(' %6d texts', self.text_count)
2100
self._cleanup_spare_files_after_format4()
2101
self.branch._transport.put_bytes(
2103
BzrDirFormat5().get_format_string(),
2104
mode=self.bzrdir._get_file_mode())
2106
def _cleanup_spare_files_after_format4(self):
2107
# FIXME working tree upgrade foo.
2108
for n in 'merged-patches', 'pending-merged-patches':
2110
## assert os.path.getsize(p) == 0
2111
self.bzrdir.transport.delete(n)
2112
except errors.NoSuchFile:
2114
self.bzrdir.transport.delete_tree('inventory-store')
2115
self.bzrdir.transport.delete_tree('text-store')
2117
def _convert_working_inv(self):
2118
inv = xml4.serializer_v4.read_inventory(
2119
self.branch._transport.get('inventory'))
2120
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv, working=True)
2121
self.branch._transport.put_bytes('inventory', new_inv_xml,
2122
mode=self.bzrdir._get_file_mode())
2124
def _write_all_weaves(self):
2125
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
2126
weave_transport = self.bzrdir.transport.clone('weaves')
2127
weaves = WeaveStore(weave_transport, prefixed=False)
2128
transaction = WriteTransaction()
2132
for file_id, file_weave in self.text_weaves.items():
2133
self.pb.update('writing weave', i, len(self.text_weaves))
2134
weaves._put_weave(file_id, file_weave, transaction)
2136
self.pb.update('inventory', 0, 1)
2137
controlweaves._put_weave('inventory', self.inv_weave, transaction)
2138
self.pb.update('inventory', 1, 1)
2142
def _write_all_revs(self):
2143
"""Write all revisions out in new form."""
2144
self.bzrdir.transport.delete_tree('revision-store')
2145
self.bzrdir.transport.mkdir('revision-store')
2146
revision_transport = self.bzrdir.transport.clone('revision-store')
2148
from bzrlib.xml5 import serializer_v5
2149
from bzrlib.repofmt.weaverepo import RevisionTextStore
2150
revision_store = RevisionTextStore(revision_transport,
2151
serializer_v5, False, versionedfile.PrefixMapper(),
2152
lambda:True, lambda:True)
2154
for i, rev_id in enumerate(self.converted_revs):
2155
self.pb.update('write revision', i, len(self.converted_revs))
2156
text = serializer_v5.write_revision_to_string(
2157
self.revisions[rev_id])
2159
revision_store.add_lines(key, None, osutils.split_lines(text))
2163
def _load_one_rev(self, rev_id):
2164
"""Load a revision object into memory.
2166
Any parents not either loaded or abandoned get queued to be
2168
self.pb.update('loading revision',
2169
len(self.revisions),
2170
len(self.known_revisions))
2171
if not self.branch.repository.has_revision(rev_id):
2173
self.pb.note('revision {%s} not present in branch; '
2174
'will be converted as a ghost',
2176
self.absent_revisions.add(rev_id)
2178
rev = self.branch.repository.get_revision(rev_id)
2179
for parent_id in rev.parent_ids:
2180
self.known_revisions.add(parent_id)
2181
self.to_read.append(parent_id)
2182
self.revisions[rev_id] = rev
2184
def _load_old_inventory(self, rev_id):
2185
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
2186
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
2187
inv.revision_id = rev_id
2188
rev = self.revisions[rev_id]
2191
def _load_updated_inventory(self, rev_id):
2192
inv_xml = self.inv_weave.get_text(rev_id)
2193
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml, rev_id)
2196
def _convert_one_rev(self, rev_id):
2197
"""Convert revision and all referenced objects to new format."""
2198
rev = self.revisions[rev_id]
2199
inv = self._load_old_inventory(rev_id)
2200
present_parents = [p for p in rev.parent_ids
2201
if p not in self.absent_revisions]
2202
self._convert_revision_contents(rev, inv, present_parents)
2203
self._store_new_inv(rev, inv, present_parents)
2204
self.converted_revs.add(rev_id)
2206
def _store_new_inv(self, rev, inv, present_parents):
2207
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
2208
new_inv_sha1 = sha_string(new_inv_xml)
2209
self.inv_weave.add_lines(rev.revision_id,
2211
new_inv_xml.splitlines(True))
2212
rev.inventory_sha1 = new_inv_sha1
2214
def _convert_revision_contents(self, rev, inv, present_parents):
2215
"""Convert all the files within a revision.
2217
Also upgrade the inventory to refer to the text revision ids."""
2218
rev_id = rev.revision_id
2219
mutter('converting texts of revision {%s}',
2221
parent_invs = map(self._load_updated_inventory, present_parents)
2222
entries = inv.iter_entries()
2224
for path, ie in entries:
2225
self._convert_file_version(rev, ie, parent_invs)
2227
def _convert_file_version(self, rev, ie, parent_invs):
2228
"""Convert one version of one file.
2230
The file needs to be added into the weave if it is a merge
2231
of >=2 parents or if it's changed from its parent.
2233
file_id = ie.file_id
2234
rev_id = rev.revision_id
2235
w = self.text_weaves.get(file_id)
2238
self.text_weaves[file_id] = w
2239
text_changed = False
2240
parent_candiate_entries = ie.parent_candidates(parent_invs)
2241
heads = graph.Graph(self).heads(parent_candiate_entries.keys())
2242
# XXX: Note that this is unordered - and this is tolerable because
2243
# the previous code was also unordered.
2244
previous_entries = dict((head, parent_candiate_entries[head]) for head
2246
self.snapshot_ie(previous_entries, ie, w, rev_id)
2249
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
2250
def get_parents(self, revision_ids):
2251
for revision_id in revision_ids:
2252
yield self.revisions[revision_id].parent_ids
2254
def get_parent_map(self, revision_ids):
2255
"""See graph._StackedParentsProvider.get_parent_map"""
2256
return dict((revision_id, self.revisions[revision_id])
2257
for revision_id in revision_ids
2258
if revision_id in self.revisions)
2260
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
2261
# TODO: convert this logic, which is ~= snapshot to
2262
# a call to:. This needs the path figured out. rather than a work_tree
2263
# a v4 revision_tree can be given, or something that looks enough like
2264
# one to give the file content to the entry if it needs it.
2265
# and we need something that looks like a weave store for snapshot to
2267
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
2268
if len(previous_revisions) == 1:
2269
previous_ie = previous_revisions.values()[0]
2270
if ie._unchanged(previous_ie):
2271
ie.revision = previous_ie.revision
2274
text = self.branch.repository._text_store.get(ie.text_id)
2275
file_lines = text.readlines()
2276
w.add_lines(rev_id, previous_revisions, file_lines)
2277
self.text_count += 1
2279
w.add_lines(rev_id, previous_revisions, [])
2280
ie.revision = rev_id
2282
def _make_order(self):
2283
"""Return a suitable order for importing revisions.
2285
The order must be such that an revision is imported after all
2286
its (present) parents.
2288
todo = set(self.revisions.keys())
2289
done = self.absent_revisions.copy()
2292
# scan through looking for a revision whose parents
2294
for rev_id in sorted(list(todo)):
2295
rev = self.revisions[rev_id]
2296
parent_ids = set(rev.parent_ids)
2297
if parent_ids.issubset(done):
2298
# can take this one now
2299
order.append(rev_id)
2305
class ConvertBzrDir5To6(Converter):
2306
"""Converts format 5 bzr dirs to format 6."""
2308
def convert(self, to_convert, pb):
2309
"""See Converter.convert()."""
2310
self.bzrdir = to_convert
2312
self.pb.note('starting upgrade from format 5 to 6')
2313
self._convert_to_prefixed()
2314
return BzrDir.open(self.bzrdir.root_transport.base)
2316
def _convert_to_prefixed(self):
2317
from bzrlib.store import TransportStore
2318
self.bzrdir.transport.delete('branch-format')
2319
for store_name in ["weaves", "revision-store"]:
2320
self.pb.note("adding prefixes to %s" % store_name)
2321
store_transport = self.bzrdir.transport.clone(store_name)
2322
store = TransportStore(store_transport, prefixed=True)
2323
for urlfilename in store_transport.list_dir('.'):
2324
filename = urlutils.unescape(urlfilename)
2325
if (filename.endswith(".weave") or
2326
filename.endswith(".gz") or
2327
filename.endswith(".sig")):
2328
file_id, suffix = os.path.splitext(filename)
2332
new_name = store._mapper.map((file_id,)) + suffix
2333
# FIXME keep track of the dirs made RBC 20060121
2335
store_transport.move(filename, new_name)
2336
except errors.NoSuchFile: # catches missing dirs strangely enough
2337
store_transport.mkdir(osutils.dirname(new_name))
2338
store_transport.move(filename, new_name)
2339
self.bzrdir.transport.put_bytes(
2341
BzrDirFormat6().get_format_string(),
2342
mode=self.bzrdir._get_file_mode())
2345
class ConvertBzrDir6ToMeta(Converter):
2346
"""Converts format 6 bzr dirs to metadirs."""
2348
def convert(self, to_convert, pb):
2349
"""See Converter.convert()."""
2350
from bzrlib.repofmt.weaverepo import RepositoryFormat7
2351
from bzrlib.branch import BzrBranchFormat5
2352
self.bzrdir = to_convert
2355
self.total = 20 # the steps we know about
2356
self.garbage_inventories = []
2357
self.dir_mode = self.bzrdir._get_dir_mode()
2358
self.file_mode = self.bzrdir._get_file_mode()
2360
self.pb.note('starting upgrade from format 6 to metadir')
2361
self.bzrdir.transport.put_bytes(
2363
"Converting to format 6",
2364
mode=self.file_mode)
2365
# its faster to move specific files around than to open and use the apis...
2366
# first off, nuke ancestry.weave, it was never used.
2368
self.step('Removing ancestry.weave')
2369
self.bzrdir.transport.delete('ancestry.weave')
2370
except errors.NoSuchFile:
2372
# find out whats there
2373
self.step('Finding branch files')
2374
last_revision = self.bzrdir.open_branch().last_revision()
2375
bzrcontents = self.bzrdir.transport.list_dir('.')
2376
for name in bzrcontents:
2377
if name.startswith('basis-inventory.'):
2378
self.garbage_inventories.append(name)
2379
# create new directories for repository, working tree and branch
2380
repository_names = [('inventory.weave', True),
2381
('revision-store', True),
2383
self.step('Upgrading repository ')
2384
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2385
self.make_lock('repository')
2386
# we hard code the formats here because we are converting into
2387
# the meta format. The meta format upgrader can take this to a
2388
# future format within each component.
2389
self.put_format('repository', RepositoryFormat7())
2390
for entry in repository_names:
2391
self.move_entry('repository', entry)
2393
self.step('Upgrading branch ')
2394
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2395
self.make_lock('branch')
2396
self.put_format('branch', BzrBranchFormat5())
2397
branch_files = [('revision-history', True),
2398
('branch-name', True),
2400
for entry in branch_files:
2401
self.move_entry('branch', entry)
2403
checkout_files = [('pending-merges', True),
2404
('inventory', True),
2405
('stat-cache', False)]
2406
# If a mandatory checkout file is not present, the branch does not have
2407
# a functional checkout. Do not create a checkout in the converted
2409
for name, mandatory in checkout_files:
2410
if mandatory and name not in bzrcontents:
2411
has_checkout = False
2415
if not has_checkout:
2416
self.pb.note('No working tree.')
2417
# If some checkout files are there, we may as well get rid of them.
2418
for name, mandatory in checkout_files:
2419
if name in bzrcontents:
2420
self.bzrdir.transport.delete(name)
2422
from bzrlib.workingtree import WorkingTreeFormat3
2423
self.step('Upgrading working tree')
2424
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2425
self.make_lock('checkout')
2427
'checkout', WorkingTreeFormat3())
2428
self.bzrdir.transport.delete_multi(
2429
self.garbage_inventories, self.pb)
2430
for entry in checkout_files:
2431
self.move_entry('checkout', entry)
2432
if last_revision is not None:
2433
self.bzrdir.transport.put_bytes(
2434
'checkout/last-revision', last_revision)
2435
self.bzrdir.transport.put_bytes(
2437
BzrDirMetaFormat1().get_format_string(),
2438
mode=self.file_mode)
2439
return BzrDir.open(self.bzrdir.root_transport.base)
2441
def make_lock(self, name):
2442
"""Make a lock for the new control dir name."""
2443
self.step('Make %s lock' % name)
2444
ld = lockdir.LockDir(self.bzrdir.transport,
2446
file_modebits=self.file_mode,
2447
dir_modebits=self.dir_mode)
2450
def move_entry(self, new_dir, entry):
2451
"""Move then entry name into new_dir."""
2453
mandatory = entry[1]
2454
self.step('Moving %s' % name)
2456
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2457
except errors.NoSuchFile:
2461
def put_format(self, dirname, format):
2462
self.bzrdir.transport.put_bytes('%s/format' % dirname,
2463
format.get_format_string(),
2467
class ConvertMetaToMeta(Converter):
2468
"""Converts the components of metadirs."""
2470
def __init__(self, target_format):
2471
"""Create a metadir to metadir converter.
2473
:param target_format: The final metadir format that is desired.
2475
self.target_format = target_format
2477
def convert(self, to_convert, pb):
2478
"""See Converter.convert()."""
2479
self.bzrdir = to_convert
2483
self.step('checking repository format')
2485
repo = self.bzrdir.open_repository()
2486
except errors.NoRepositoryPresent:
2489
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2490
from bzrlib.repository import CopyConverter
2491
self.pb.note('starting repository conversion')
2492
converter = CopyConverter(self.target_format.repository_format)
2493
converter.convert(repo, pb)
2495
branch = self.bzrdir.open_branch()
2496
except errors.NotBranchError:
2499
# TODO: conversions of Branch and Tree should be done by
2500
# InterXFormat lookups/some sort of registry.
2501
# Avoid circular imports
2502
from bzrlib import branch as _mod_branch
2503
old = branch._format.__class__
2504
new = self.target_format.get_branch_format().__class__
2506
if (old == _mod_branch.BzrBranchFormat5 and
2507
new in (_mod_branch.BzrBranchFormat6,
2508
_mod_branch.BzrBranchFormat7)):
2509
branch_converter = _mod_branch.Converter5to6()
2510
elif (old == _mod_branch.BzrBranchFormat6 and
2511
new == _mod_branch.BzrBranchFormat7):
2512
branch_converter = _mod_branch.Converter6to7()
2514
raise errors.BadConversionTarget("No converter", new)
2515
branch_converter.convert(branch)
2516
branch = self.bzrdir.open_branch()
2517
old = branch._format.__class__
2519
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2520
except (errors.NoWorkingTree, errors.NotLocalUrl):
2523
# TODO: conversions of Branch and Tree should be done by
2524
# InterXFormat lookups
2525
if (isinstance(tree, workingtree.WorkingTree3) and
2526
not isinstance(tree, workingtree_4.WorkingTree4) and
2527
isinstance(self.target_format.workingtree_format,
2528
workingtree_4.WorkingTreeFormat4)):
2529
workingtree_4.Converter3to4().convert(tree)
2533
# This is not in remote.py because it's small, and needs to be registered.
2534
# Putting it in remote.py creates a circular import problem.
2535
# we can make it a lazy object if the control formats is turned into something
2537
class RemoteBzrDirFormat(BzrDirMetaFormat1):
2538
"""Format representing bzrdirs accessed via a smart server"""
2540
def get_format_description(self):
2541
return 'bzr remote bzrdir'
2544
def probe_transport(klass, transport):
2545
"""Return a RemoteBzrDirFormat object if it looks possible."""
2547
medium = transport.get_smart_medium()
2548
except (NotImplementedError, AttributeError,
2549
errors.TransportNotPossible, errors.NoSmartMedium,
2550
errors.SmartProtocolError):
2551
# no smart server, so not a branch for this format type.
2552
raise errors.NotBranchError(path=transport.base)
2554
# Decline to open it if the server doesn't support our required
2555
# version (3) so that the VFS-based transport will do it.
2556
if medium.should_probe():
2558
server_version = medium.protocol_version()
2559
except errors.SmartProtocolError:
2560
# Apparently there's no usable smart server there, even though
2561
# the medium supports the smart protocol.
2562
raise errors.NotBranchError(path=transport.base)
2563
if server_version != '2':
2564
raise errors.NotBranchError(path=transport.base)
2567
def initialize_on_transport(self, transport):
2569
# hand off the request to the smart server
2570
client_medium = transport.get_smart_medium()
2571
except errors.NoSmartMedium:
2572
# TODO: lookup the local format from a server hint.
2573
local_dir_format = BzrDirMetaFormat1()
2574
return local_dir_format.initialize_on_transport(transport)
2575
client = _SmartClient(client_medium)
2576
path = client.remote_path_from_transport(transport)
2577
response = client.call('BzrDirFormat.initialize', path)
2578
if response[0] != 'ok':
2579
raise errors.SmartProtocolError('unexpected response code %s' % (response,))
2580
return remote.RemoteBzrDir(transport)
2582
def _open(self, transport):
2583
return remote.RemoteBzrDir(transport)
2585
def __eq__(self, other):
2586
if not isinstance(other, RemoteBzrDirFormat):
2588
return self.get_format_description() == other.get_format_description()
2591
BzrDirFormat.register_control_server_format(RemoteBzrDirFormat)
2594
class BzrDirFormatInfo(object):
2596
def __init__(self, native, deprecated, hidden, experimental):
2597
self.deprecated = deprecated
2598
self.native = native
2599
self.hidden = hidden
2600
self.experimental = experimental
2603
class BzrDirFormatRegistry(registry.Registry):
2604
"""Registry of user-selectable BzrDir subformats.
2606
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2607
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2611
"""Create a BzrDirFormatRegistry."""
2612
self._aliases = set()
2613
super(BzrDirFormatRegistry, self).__init__()
2616
"""Return a set of the format names which are aliases."""
2617
return frozenset(self._aliases)
2619
def register_metadir(self, key,
2620
repository_format, help, native=True, deprecated=False,
2626
"""Register a metadir subformat.
2628
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2629
by the Repository format.
2631
:param repository_format: The fully-qualified repository format class
2633
:param branch_format: Fully-qualified branch format class name as
2635
:param tree_format: Fully-qualified tree format class name as
2638
# This should be expanded to support setting WorkingTree and Branch
2639
# formats, once BzrDirMetaFormat1 supports that.
2640
def _load(full_name):
2641
mod_name, factory_name = full_name.rsplit('.', 1)
2643
mod = __import__(mod_name, globals(), locals(),
2645
except ImportError, e:
2646
raise ImportError('failed to load %s: %s' % (full_name, e))
2648
factory = getattr(mod, factory_name)
2649
except AttributeError:
2650
raise AttributeError('no factory %s in module %r'
2655
bd = BzrDirMetaFormat1()
2656
if branch_format is not None:
2657
bd.set_branch_format(_load(branch_format))
2658
if tree_format is not None:
2659
bd.workingtree_format = _load(tree_format)
2660
if repository_format is not None:
2661
bd.repository_format = _load(repository_format)
2663
self.register(key, helper, help, native, deprecated, hidden,
2664
experimental, alias)
2666
def register(self, key, factory, help, native=True, deprecated=False,
2667
hidden=False, experimental=False, alias=False):
2668
"""Register a BzrDirFormat factory.
2670
The factory must be a callable that takes one parameter: the key.
2671
It must produce an instance of the BzrDirFormat when called.
2673
This function mainly exists to prevent the info object from being
2676
registry.Registry.register(self, key, factory, help,
2677
BzrDirFormatInfo(native, deprecated, hidden, experimental))
2679
self._aliases.add(key)
2681
def register_lazy(self, key, module_name, member_name, help, native=True,
2682
deprecated=False, hidden=False, experimental=False, alias=False):
2683
registry.Registry.register_lazy(self, key, module_name, member_name,
2684
help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
2686
self._aliases.add(key)
2688
def set_default(self, key):
2689
"""Set the 'default' key to be a clone of the supplied key.
2691
This method must be called once and only once.
2693
registry.Registry.register(self, 'default', self.get(key),
2694
self.get_help(key), info=self.get_info(key))
2695
self._aliases.add('default')
2697
def set_default_repository(self, key):
2698
"""Set the FormatRegistry default and Repository default.
2700
This is a transitional method while Repository.set_default_format
2703
if 'default' in self:
2704
self.remove('default')
2705
self.set_default(key)
2706
format = self.get('default')()
2708
def make_bzrdir(self, key):
2709
return self.get(key)()
2711
def help_topic(self, topic):
2712
output = textwrap.dedent("""\
2713
These formats can be used for creating branches, working trees, and
2717
default_realkey = None
2718
default_help = self.get_help('default')
2720
for key in self.keys():
2721
if key == 'default':
2723
help = self.get_help(key)
2724
if help == default_help:
2725
default_realkey = key
2727
help_pairs.append((key, help))
2729
def wrapped(key, help, info):
2731
help = '(native) ' + help
2732
return ':%s:\n%s\n\n' % (key,
2733
textwrap.fill(help, initial_indent=' ',
2734
subsequent_indent=' '))
2735
if default_realkey is not None:
2736
output += wrapped(default_realkey, '(default) %s' % default_help,
2737
self.get_info('default'))
2738
deprecated_pairs = []
2739
experimental_pairs = []
2740
for key, help in help_pairs:
2741
info = self.get_info(key)
2744
elif info.deprecated:
2745
deprecated_pairs.append((key, help))
2746
elif info.experimental:
2747
experimental_pairs.append((key, help))
2749
output += wrapped(key, help, info)
2750
if len(experimental_pairs) > 0:
2751
output += "Experimental formats are shown below.\n\n"
2752
for key, help in experimental_pairs:
2753
info = self.get_info(key)
2754
output += wrapped(key, help, info)
2755
if len(deprecated_pairs) > 0:
2756
output += "Deprecated formats are shown below.\n\n"
2757
for key, help in deprecated_pairs:
2758
info = self.get_info(key)
2759
output += wrapped(key, help, info)
2764
class RepositoryAcquisitionPolicy(object):
2765
"""Abstract base class for repository acquisition policies.
2767
A repository acquisition policy decides how a BzrDir acquires a repository
2768
for a branch that is being created. The most basic policy decision is
2769
whether to create a new repository or use an existing one.
2771
def __init__(self, stack_on, stack_on_pwd, require_stacking):
2774
:param stack_on: A location to stack on
2775
:param stack_on_pwd: If stack_on is relative, the location it is
2777
:param require_stacking: If True, it is a failure to not stack.
2779
self._stack_on = stack_on
2780
self._stack_on_pwd = stack_on_pwd
2781
self._require_stacking = require_stacking
2783
def configure_branch(self, branch):
2784
"""Apply any configuration data from this policy to the branch.
2786
Default implementation sets repository stacking.
2788
if self._stack_on is None:
2790
if self._stack_on_pwd is None:
2791
stack_on = self._stack_on
2794
stack_on = urlutils.rebase_url(self._stack_on,
2796
branch.bzrdir.root_transport.base)
2797
except errors.InvalidRebaseURLs:
2798
stack_on = self._get_full_stack_on()
2800
branch.set_stacked_on_url(stack_on)
2801
except errors.UnstackableBranchFormat:
2802
if self._require_stacking:
2805
def _get_full_stack_on(self):
2806
"""Get a fully-qualified URL for the stack_on location."""
2807
if self._stack_on is None:
2809
if self._stack_on_pwd is None:
2810
return self._stack_on
2812
return urlutils.join(self._stack_on_pwd, self._stack_on)
2814
def _add_fallback(self, repository):
2815
"""Add a fallback to the supplied repository, if stacking is set."""
2816
stack_on = self._get_full_stack_on()
2817
if stack_on is None:
2819
stacked_dir = BzrDir.open(stack_on)
2821
stacked_repo = stacked_dir.open_branch().repository
2822
except errors.NotBranchError:
2823
stacked_repo = stacked_dir.open_repository()
2825
repository.add_fallback_repository(stacked_repo)
2826
except errors.UnstackableRepositoryFormat:
2827
if self._require_stacking:
2830
def acquire_repository(self, make_working_trees=None, shared=False):
2831
"""Acquire a repository for this bzrdir.
2833
Implementations may create a new repository or use a pre-exising
2835
:param make_working_trees: If creating a repository, set
2836
make_working_trees to this value (if non-None)
2837
:param shared: If creating a repository, make it shared if True
2838
:return: A repository
2840
raise NotImplemented(RepositoryAcquisitionPolicy.acquire_repository)
2843
class CreateRepository(RepositoryAcquisitionPolicy):
2844
"""A policy of creating a new repository"""
2846
def __init__(self, bzrdir, stack_on=None, stack_on_pwd=None,
2847
require_stacking=False):
2850
:param bzrdir: The bzrdir to create the repository on.
2851
:param stack_on: A location to stack on
2852
:param stack_on_pwd: If stack_on is relative, the location it is
2855
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2857
self._bzrdir = bzrdir
2859
def acquire_repository(self, make_working_trees=None, shared=False):
2860
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2862
Creates the desired repository in the bzrdir we already have.
2864
repository = self._bzrdir.create_repository(shared=shared)
2865
self._add_fallback(repository)
2866
if make_working_trees is not None:
2867
repository.set_make_working_trees(make_working_trees)
2871
class UseExistingRepository(RepositoryAcquisitionPolicy):
2872
"""A policy of reusing an existing repository"""
2874
def __init__(self, repository, stack_on=None, stack_on_pwd=None,
2875
require_stacking=False):
2878
:param repository: The repository to use.
2879
:param stack_on: A location to stack on
2880
:param stack_on_pwd: If stack_on is relative, the location it is
2883
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2885
self._repository = repository
2887
def acquire_repository(self, make_working_trees=None, shared=False):
2888
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2890
Returns an existing repository to use
2892
self._add_fallback(self._repository)
2893
return self._repository
2896
format_registry = BzrDirFormatRegistry()
2897
format_registry.register('weave', BzrDirFormat6,
2898
'Pre-0.8 format. Slower than knit and does not'
2899
' support checkouts or shared repositories.',
2901
format_registry.register_metadir('knit',
2902
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2903
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2904
branch_format='bzrlib.branch.BzrBranchFormat5',
2905
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2906
format_registry.register_metadir('metaweave',
2907
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2908
'Transitional format in 0.8. Slower than knit.',
2909
branch_format='bzrlib.branch.BzrBranchFormat5',
2910
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2912
format_registry.register_metadir('dirstate',
2913
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2914
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2915
'above when accessed over the network.',
2916
branch_format='bzrlib.branch.BzrBranchFormat5',
2917
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2918
# directly from workingtree_4 triggers a circular import.
2919
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2921
format_registry.register_metadir('dirstate-tags',
2922
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2923
help='New in 0.15: Fast local operations and improved scaling for '
2924
'network operations. Additionally adds support for tags.'
2925
' Incompatible with bzr < 0.15.',
2926
branch_format='bzrlib.branch.BzrBranchFormat6',
2927
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2929
format_registry.register_metadir('rich-root',
2930
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
2931
help='New in 1.0. Better handling of tree roots. Incompatible with'
2933
branch_format='bzrlib.branch.BzrBranchFormat6',
2934
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2936
format_registry.register_metadir('dirstate-with-subtree',
2937
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2938
help='New in 0.15: Fast local operations and improved scaling for '
2939
'network operations. Additionally adds support for versioning nested '
2940
'bzr branches. Incompatible with bzr < 0.15.',
2941
branch_format='bzrlib.branch.BzrBranchFormat6',
2942
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2946
format_registry.register_metadir('pack-0.92',
2947
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack1',
2948
help='New in 0.92: Pack-based format with data compatible with '
2949
'dirstate-tags format repositories. Interoperates with '
2950
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
2951
'Previously called knitpack-experimental. '
2952
'For more information, see '
2953
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
2954
branch_format='bzrlib.branch.BzrBranchFormat6',
2955
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2957
format_registry.register_metadir('pack-0.92-subtree',
2958
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack3',
2959
help='New in 0.92: Pack-based format with data compatible with '
2960
'dirstate-with-subtree format repositories. Interoperates with '
2961
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
2962
'Previously called knitpack-experimental. '
2963
'For more information, see '
2964
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
2965
branch_format='bzrlib.branch.BzrBranchFormat6',
2966
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2970
format_registry.register_metadir('rich-root-pack',
2971
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack4',
2972
help='New in 1.0: Pack-based format with data compatible with '
2973
'rich-root format repositories. Incompatible with'
2975
branch_format='bzrlib.branch.BzrBranchFormat6',
2976
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2978
# The following two formats should always just be aliases.
2979
format_registry.register_metadir('development',
2980
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
2981
help='Current development format. Can convert data to and from pack-0.92 '
2982
'(and anything compatible with pack-0.92) format repositories. '
2983
'Repositories and branches in this format can only be read by bzr.dev. '
2985
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
2987
branch_format='bzrlib.branch.BzrBranchFormat7',
2988
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2992
format_registry.register_metadir('development-subtree',
2993
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
2994
help='Current development format, subtree variant. Can convert data to and '
2995
'from pack-0.92-subtree (and anything compatible with '
2996
'pack-0.92-subtree) format repositories. Repositories and branches in '
2997
'this format can only be read by bzr.dev. Please read '
2998
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3000
branch_format='bzrlib.branch.BzrBranchFormat7',
3001
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3005
# And the development formats which the will have aliased one of follow:
3006
format_registry.register_metadir('development0',
3007
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0',
3008
help='Trivial rename of pack-0.92 to provide a development format. '
3010
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3012
branch_format='bzrlib.branch.BzrBranchFormat6',
3013
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3017
format_registry.register_metadir('development0-subtree',
3018
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment0Subtree',
3019
help='Trivial rename of pack-0.92-subtree to provide a development format. '
3021
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3023
branch_format='bzrlib.branch.BzrBranchFormat6',
3024
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3028
format_registry.register_metadir('development1',
3029
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3030
help='A branch and pack based repository that supports stacking. '
3032
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3034
branch_format='bzrlib.branch.BzrBranchFormat7',
3035
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3039
format_registry.register_metadir('development1-subtree',
3040
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3041
help='A branch and pack based repository that supports stacking. '
3043
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3045
branch_format='bzrlib.branch.BzrBranchFormat7',
3046
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3050
# The current format that is made on 'bzr init'.
3051
format_registry.set_default('pack-0.92')
added
removed
bzrlib/bzrdir.py
