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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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require_stacking = (stacked_on is not None)
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metadir = self.cloning_metadir(require_stacking)
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result = 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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stacked_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, stacked_on, self.root_transport.base,
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require_stacking=require_stacking)
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make_working_trees = local_repo.make_working_trees()
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result_repo = repository_policy.acquire_repository(
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make_working_trees, local_repo.is_shared())
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result_repo.fetch(local_repo, revision_id=revision_id)
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# 1 if there is a branch present
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# make sure its content is available in the target repository
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if local_branch is not None:
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result_branch = local_branch.clone(result, revision_id=revision_id)
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if repository_policy is not None:
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repository_policy.configure_branch(result_branch)
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if result_repo is None or result_repo.make_working_trees():
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self.open_workingtree().clone(result)
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except (errors.NoWorkingTree, errors.NotLocalUrl):
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# TODO: This should be given a Transport, and should chdir up; otherwise
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# this will open a new connection.
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def _make_tail(self, url):
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t = get_transport(url)
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def create(cls, base, format=None, possible_transports=None):
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"""Create a new BzrDir at the url 'base'.
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:param format: If supplied, the format of branch to create. If not
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supplied, the default is used.
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:param possible_transports: If supplied, a list of transports that
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can be reused to share a remote connection.
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if cls is not BzrDir:
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raise AssertionError("BzrDir.create always creates the default"
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" format, not one of %r" % cls)
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t = get_transport(base, possible_transports)
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format = BzrDirFormat.get_default_format()
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return format.initialize_on_transport(t)
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def find_bzrdirs(transport, evaluate=None, list_current=None):
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"""Find bzrdirs recursively from current location.
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This is intended primarily as a building block for more sophisticated
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functionality, like finding trees under a directory, or finding
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branches that use a given repository.
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:param evaluate: An optional callable that yields recurse, value,
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where recurse controls whether this bzrdir is recursed into
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and value is the value to yield. By default, all bzrdirs
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are recursed into, and the return value is the bzrdir.
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:param list_current: if supplied, use this function to list the current
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directory, instead of Transport.list_dir
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:return: a generator of found bzrdirs, or whatever evaluate returns.
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if list_current is None:
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def list_current(transport):
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return transport.list_dir('')
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def evaluate(bzrdir):
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pending = [transport]
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while len(pending) > 0:
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current_transport = pending.pop()
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bzrdir = BzrDir.open_from_transport(current_transport)
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except errors.NotBranchError:
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recurse, value = evaluate(bzrdir)
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subdirs = list_current(current_transport)
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except errors.NoSuchFile:
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for subdir in sorted(subdirs, reverse=True):
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pending.append(current_transport.clone(subdir))
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def find_branches(transport):
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"""Find all branches under a transport.
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This will find all branches below the transport, including branches
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inside other branches. Where possible, it will use
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Repository.find_branches.
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To list all the branches that use a particular Repository, see
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Repository.find_branches
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def evaluate(bzrdir):
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repository = bzrdir.open_repository()
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except errors.NoRepositoryPresent:
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return False, (None, repository)
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branch = bzrdir.open_branch()
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except errors.NotBranchError:
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return True, (None, None)
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return True, (branch, None)
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for branch, repo in BzrDir.find_bzrdirs(transport, evaluate=evaluate):
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branches.extend(repo.find_branches())
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if branch is not None:
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branches.append(branch)
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def destroy_repository(self):
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"""Destroy the repository in this BzrDir"""
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raise NotImplementedError(self.destroy_repository)
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def create_branch(self):
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"""Create a branch in this BzrDir.
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The bzrdir's format will control what branch format is created.
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For more control see BranchFormatXX.create(a_bzrdir).
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raise NotImplementedError(self.create_branch)
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def destroy_branch(self):
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"""Destroy the branch in this BzrDir"""
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raise NotImplementedError(self.destroy_branch)
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def create_branch_and_repo(base, force_new_repo=False, format=None):
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"""Create a new BzrDir, Branch and Repository at the url 'base'.
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This will use the current default BzrDirFormat unless one is
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specified, and use whatever
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repository format that that uses via bzrdir.create_branch and
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create_repository. If a shared repository is available that is used
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The created Branch object is returned.
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:param base: The URL to create the branch at.
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:param force_new_repo: If True a new repository is always created.
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:param format: If supplied, the format of branch to create. If not
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supplied, the default is used.
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bzrdir = BzrDir.create(base, format)
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bzrdir._find_or_create_repository(force_new_repo)
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return bzrdir.create_branch()
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def determine_repository_policy(self, force_new_repo=False, stack_on=None,
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stack_on_pwd=None, require_stacking=False):
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"""Return an object representing a policy to use.
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This controls whether a new repository is created, or a shared
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repository used instead.
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If stack_on is supplied, will not seek a containing shared repo.
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:param force_new_repo: If True, require a new repository to be created.
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:param stack_on: If supplied, the location to stack on. If not
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supplied, a default_stack_on location may be used.
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:param stack_on_pwd: If stack_on is relative, the location it is
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def repository_policy(found_bzrdir):
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config = found_bzrdir.get_config()
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if config is not None:
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stack_on = config.get_default_stack_on()
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if stack_on is not None:
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stack_on_pwd = found_bzrdir.root_transport.base
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note('Using default stacking branch %s at %s', stack_on,
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# does it have a repository ?
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repository = found_bzrdir.open_repository()
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except errors.NoRepositoryPresent:
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if ((found_bzrdir.root_transport.base !=
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self.root_transport.base) and not repository.is_shared()):
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return UseExistingRepository(repository, stack_on,
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stack_on_pwd, require_stacking=require_stacking), True
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return CreateRepository(self, stack_on, stack_on_pwd,
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require_stacking=require_stacking), True
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if not force_new_repo:
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policy = self._find_containing(repository_policy)
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if policy is not None:
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return UseExistingRepository(self.open_repository(),
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stack_on, stack_on_pwd,
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require_stacking=require_stacking)
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except errors.NoRepositoryPresent:
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return CreateRepository(self, stack_on, stack_on_pwd,
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require_stacking=require_stacking)
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def _find_or_create_repository(self, force_new_repo):
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"""Create a new repository if needed, returning the repository."""
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policy = self.determine_repository_policy(force_new_repo)
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return policy.acquire_repository()
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def create_branch_convenience(base, force_new_repo=False,
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force_new_tree=None, format=None,
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possible_transports=None):
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"""Create a new BzrDir, Branch and Repository at the url 'base'.
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This is a convenience function - it will use an existing repository
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if possible, can be told explicitly whether to create a working tree or
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This will use the current default BzrDirFormat unless one is
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specified, and use whatever
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repository format that that uses via bzrdir.create_branch and
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create_repository. If a shared repository is available that is used
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preferentially. Whatever repository is used, its tree creation policy
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The created Branch object is returned.
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If a working tree cannot be made due to base not being a file:// url,
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no error is raised unless force_new_tree is True, in which case no
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data is created on disk and NotLocalUrl is raised.
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:param base: The URL to create the branch at.
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:param force_new_repo: If True a new repository is always created.
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:param force_new_tree: If True or False force creation of a tree or
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prevent such creation respectively.
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:param format: Override for the bzrdir format to create.
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:param possible_transports: An optional reusable transports list.
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# check for non local urls
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t = get_transport(base, possible_transports)
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if not isinstance(t, LocalTransport):
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raise errors.NotLocalUrl(base)
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bzrdir = BzrDir.create(base, format, possible_transports)
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repo = bzrdir._find_or_create_repository(force_new_repo)
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result = bzrdir.create_branch()
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if force_new_tree or (repo.make_working_trees() and
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force_new_tree is None):
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bzrdir.create_workingtree()
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except errors.NotLocalUrl:
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def create_standalone_workingtree(base, format=None):
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"""Create a new BzrDir, WorkingTree, Branch and Repository at 'base'.
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'base' must be a local path or a file:// url.
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This will use the current default BzrDirFormat unless one is
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specified, and use whatever
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repository format that that uses for bzrdirformat.create_workingtree,
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create_branch and create_repository.
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:param format: Override for the bzrdir format to create.
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:return: The WorkingTree object.
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t = get_transport(base)
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if not isinstance(t, LocalTransport):
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raise errors.NotLocalUrl(base)
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bzrdir = BzrDir.create_branch_and_repo(base,
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format=format).bzrdir
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return bzrdir.create_workingtree()
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def create_workingtree(self, revision_id=None, from_branch=None,
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accelerator_tree=None, hardlink=False):
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"""Create a working tree at this BzrDir.
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:param revision_id: create it as of this revision id.
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:param from_branch: override bzrdir branch (for lightweight checkouts)
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:param accelerator_tree: A tree which can be used for retrieving file
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contents more quickly than the revision tree, i.e. a workingtree.
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The revision tree will be used for cases where accelerator_tree's
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content is different.
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raise NotImplementedError(self.create_workingtree)
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def retire_bzrdir(self, limit=10000):
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"""Permanently disable the bzrdir.
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This is done by renaming it to give the user some ability to recover
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if there was a problem.
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This will have horrible consequences if anyone has anything locked or
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:param limit: number of times to retry
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to_path = '.bzr.retired.%d' % i
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self.root_transport.rename('.bzr', to_path)
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note("renamed %s to %s"
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% (self.root_transport.abspath('.bzr'), to_path))
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except (errors.TransportError, IOError, errors.PathError):
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def destroy_workingtree(self):
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"""Destroy the working tree at this BzrDir.
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Formats that do not support this may raise UnsupportedOperation.
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raise NotImplementedError(self.destroy_workingtree)
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def destroy_workingtree_metadata(self):
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"""Destroy the control files for the working tree at this BzrDir.
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The contents of working tree files are not affected.
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Formats that do not support this may raise UnsupportedOperation.
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raise NotImplementedError(self.destroy_workingtree_metadata)
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def _find_containing(self, evaluate):
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"""Find something in a containing control directory.
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This method will scan containing control dirs, until it finds what
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it is looking for, decides that it will never find it, or runs out
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of containing control directories to check.
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It is used to implement find_repository and
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determine_repository_policy.
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:param evaluate: A function returning (value, stop). If stop is True,
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the value will be returned.
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result, stop = evaluate(found_bzrdir)
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next_transport = found_bzrdir.root_transport.clone('..')
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if (found_bzrdir.root_transport.base == next_transport.base):
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# top of the file system
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# find the next containing bzrdir
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found_bzrdir = BzrDir.open_containing_from_transport(
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except errors.NotBranchError:
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def find_repository(self):
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"""Find the repository that should be used.
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This does not require a branch as we use it to find the repo for
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new branches as well as to hook existing branches up to their
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def usable_repository(found_bzrdir):
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# does it have a repository ?
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repository = found_bzrdir.open_repository()
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except errors.NoRepositoryPresent:
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if found_bzrdir.root_transport.base == self.root_transport.base:
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return repository, True
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elif repository.is_shared():
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return repository, True
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found_repo = self._find_containing(usable_repository)
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if found_repo is None:
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raise errors.NoRepositoryPresent(self)
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def get_branch_reference(self):
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"""Return the referenced URL for the branch in this bzrdir.
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:raises NotBranchError: If there is no Branch.
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:return: The URL the branch in this bzrdir references if it is a
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reference branch, or None for regular branches.
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def get_branch_transport(self, branch_format):
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"""Get the transport for use by branch format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the branch format they are given has
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a format string, and vice versa.
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If branch_format is None, the transport is returned with no
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checking. If it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_branch_transport)
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def _find_creation_modes(self):
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"""Determine the appropriate modes for files and directories.
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They're always set to be consistent with the base directory,
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assuming that this transport allows setting modes.
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# TODO: Do we need or want an option (maybe a config setting) to turn
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# this off or override it for particular locations? -- mbp 20080512
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if self._mode_check_done:
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self._mode_check_done = True
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st = self.transport.stat('.')
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except errors.TransportNotPossible:
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self._dir_mode = None
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self._file_mode = None
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# Check the directory mode, but also make sure the created
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# directories and files are read-write for this user. This is
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# mostly a workaround for filesystems which lie about being able to
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# write to a directory (cygwin & win32)
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if (st.st_mode & 07777 == 00000):
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# FTP allows stat but does not return dir/file modes
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self._dir_mode = None
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self._file_mode = None
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self._dir_mode = (st.st_mode & 07777) | 00700
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# Remove the sticky and execute bits for files
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self._file_mode = self._dir_mode & ~07111
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def _get_file_mode(self):
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"""Return Unix mode for newly created files, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._file_mode
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def _get_dir_mode(self):
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"""Return Unix mode for newly created directories, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._dir_mode
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def get_repository_transport(self, repository_format):
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"""Get the transport for use by repository format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the repository format they are given has
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a format string, and vice versa.
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If repository_format is None, the transport is returned with no
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checking. If it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_repository_transport)
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def get_workingtree_transport(self, tree_format):
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"""Get the transport for use by workingtree format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the workingtree format they are given has a
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format string, and vice versa.
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If workingtree_format is None, the transport is returned with no
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checking. If it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_workingtree_transport)
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def get_config(self):
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if getattr(self, '_get_config', None) is None:
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return self._get_config()
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def __init__(self, _transport, _format):
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"""Initialize a Bzr control dir object.
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Only really common logic should reside here, concrete classes should be
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made with varying behaviours.
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:param _format: the format that is creating this BzrDir instance.
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:param _transport: the transport this dir is based at.
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self._format = _format
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self.transport = _transport.clone('.bzr')
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self.root_transport = _transport
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self._mode_check_done = False
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def is_control_filename(self, filename):
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"""True if filename is the name of a path which is reserved for bzrdir's.
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:param filename: A filename within the root transport of this bzrdir.
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This is true IF and ONLY IF the filename is part of the namespace reserved
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for bzr control dirs. Currently this is the '.bzr' directory in the root
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of the root_transport. it is expected that plugins will need to extend
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this in the future - for instance to make bzr talk with svn working
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# this might be better on the BzrDirFormat class because it refers to
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# all the possible bzrdir disk formats.
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# This method is tested via the workingtree is_control_filename tests-
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# it was extracted from WorkingTree.is_control_filename. If the method's
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# contract is extended beyond the current trivial implementation, please
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# add new tests for it to the appropriate place.
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return filename == '.bzr' or filename.startswith('.bzr/')
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def needs_format_conversion(self, format=None):
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"""Return true if this bzrdir needs convert_format run on it.
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For instance, if the repository format is out of date but the
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branch and working tree are not, this should return True.
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:param format: Optional parameter indicating a specific desired
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format we plan to arrive at.
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raise NotImplementedError(self.needs_format_conversion)
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def open_unsupported(base):
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"""Open a branch which is not supported."""
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return BzrDir.open(base, _unsupported=True)
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def open(base, _unsupported=False, possible_transports=None):
767
"""Open an existing bzrdir, rooted at 'base' (url).
769
:param _unsupported: a private parameter to the BzrDir class.
771
t = get_transport(base, possible_transports=possible_transports)
772
return BzrDir.open_from_transport(t, _unsupported=_unsupported)
775
def open_from_transport(transport, _unsupported=False,
776
_server_formats=True):
777
"""Open a bzrdir within a particular directory.
779
:param transport: Transport containing the bzrdir.
780
:param _unsupported: private.
782
base = transport.base
784
def find_format(transport):
785
return transport, BzrDirFormat.find_format(
786
transport, _server_formats=_server_formats)
788
def redirected(transport, e, redirection_notice):
789
qualified_source = e.get_source_url()
790
relpath = transport.relpath(qualified_source)
791
if not e.target.endswith(relpath):
792
# Not redirected to a branch-format, not a branch
793
raise errors.NotBranchError(path=e.target)
794
target = e.target[:-len(relpath)]
795
note('%s is%s redirected to %s',
796
transport.base, e.permanently, target)
797
# Let's try with a new transport
798
# FIXME: If 'transport' has a qualifier, this should
799
# be applied again to the new transport *iff* the
800
# schemes used are the same. Uncomment this code
801
# once the function (and tests) exist.
803
#target = urlutils.copy_url_qualifiers(original, target)
804
return get_transport(target)
807
transport, format = do_catching_redirections(find_format,
810
except errors.TooManyRedirections:
811
raise errors.NotBranchError(base)
813
BzrDir._check_supported(format, _unsupported)
814
return format.open(transport, _found=True)
816
def open_branch(self, unsupported=False):
817
"""Open the branch object at this BzrDir if one is present.
819
If unsupported is True, then no longer supported branch formats can
822
TODO: static convenience version of this?
824
raise NotImplementedError(self.open_branch)
827
def open_containing(url, possible_transports=None):
828
"""Open an existing branch which contains url.
830
:param url: url to search from.
831
See open_containing_from_transport for more detail.
833
transport = get_transport(url, possible_transports)
834
return BzrDir.open_containing_from_transport(transport)
837
def open_containing_from_transport(a_transport):
838
"""Open an existing branch which contains a_transport.base.
840
This probes for a branch at a_transport, and searches upwards from there.
842
Basically we keep looking up until we find the control directory or
843
run into the root. If there isn't one, raises NotBranchError.
844
If there is one and it is either an unrecognised format or an unsupported
845
format, UnknownFormatError or UnsupportedFormatError are raised.
846
If there is one, it is returned, along with the unused portion of url.
848
:return: The BzrDir that contains the path, and a Unicode path
849
for the rest of the URL.
851
# this gets the normalised url back. I.e. '.' -> the full path.
852
url = a_transport.base
855
result = BzrDir.open_from_transport(a_transport)
856
return result, urlutils.unescape(a_transport.relpath(url))
857
except errors.NotBranchError, e:
860
new_t = a_transport.clone('..')
861
except errors.InvalidURLJoin:
862
# reached the root, whatever that may be
863
raise errors.NotBranchError(path=url)
864
if new_t.base == a_transport.base:
865
# reached the root, whatever that may be
866
raise errors.NotBranchError(path=url)
869
def _get_tree_branch(self):
870
"""Return the branch and tree, if any, for this bzrdir.
872
Return None for tree if not present or inaccessible.
873
Raise NotBranchError if no branch is present.
874
:return: (tree, branch)
877
tree = self.open_workingtree()
878
except (errors.NoWorkingTree, errors.NotLocalUrl):
880
branch = self.open_branch()
886
def open_tree_or_branch(klass, location):
887
"""Return the branch and working tree at a location.
889
If there is no tree at the location, tree will be None.
890
If there is no branch at the location, an exception will be
892
:return: (tree, branch)
894
bzrdir = klass.open(location)
895
return bzrdir._get_tree_branch()
898
def open_containing_tree_or_branch(klass, location):
899
"""Return the branch and working tree contained by a location.
901
Returns (tree, branch, relpath).
902
If there is no tree at containing the location, tree will be None.
903
If there is no branch containing the location, an exception will be
905
relpath is the portion of the path that is contained by the branch.
907
bzrdir, relpath = klass.open_containing(location)
908
tree, branch = bzrdir._get_tree_branch()
909
return tree, branch, relpath
912
def open_containing_tree_branch_or_repository(klass, location):
913
"""Return the working tree, branch and repo contained by a location.
915
Returns (tree, branch, repository, relpath).
916
If there is no tree containing the location, tree will be None.
917
If there is no branch containing the location, branch will be None.
918
If there is no repository containing the location, repository will be
920
relpath is the portion of the path that is contained by the innermost
923
If no tree, branch or repository is found, a NotBranchError is raised.
925
bzrdir, relpath = klass.open_containing(location)
927
tree, branch = bzrdir._get_tree_branch()
928
except errors.NotBranchError:
930
repo = bzrdir.find_repository()
931
return None, None, repo, relpath
932
except (errors.NoRepositoryPresent):
933
raise errors.NotBranchError(location)
934
return tree, branch, branch.repository, relpath
936
def open_repository(self, _unsupported=False):
937
"""Open the repository object at this BzrDir if one is present.
939
This will not follow the Branch object pointer - it's strictly a direct
940
open facility. Most client code should use open_branch().repository to
943
:param _unsupported: a private parameter, not part of the api.
944
TODO: static convenience version of this?
946
raise NotImplementedError(self.open_repository)
948
def open_workingtree(self, _unsupported=False,
949
recommend_upgrade=True, from_branch=None):
950
"""Open the workingtree object at this BzrDir if one is present.
952
:param recommend_upgrade: Optional keyword parameter, when True (the
953
default), emit through the ui module a recommendation that the user
954
upgrade the working tree when the workingtree being opened is old
955
(but still fully supported).
956
:param from_branch: override bzrdir branch (for lightweight checkouts)
958
raise NotImplementedError(self.open_workingtree)
960
def has_branch(self):
961
"""Tell if this bzrdir contains a branch.
963
Note: if you're going to open the branch, you should just go ahead
964
and try, and not ask permission first. (This method just opens the
965
branch and discards it, and that's somewhat expensive.)
970
except errors.NotBranchError:
973
def has_workingtree(self):
974
"""Tell if this bzrdir contains a working tree.
976
This will still raise an exception if the bzrdir has a workingtree that
977
is remote & inaccessible.
979
Note: if you're going to open the working tree, you should just go ahead
980
and try, and not ask permission first. (This method just opens the
981
workingtree and discards it, and that's somewhat expensive.)
984
self.open_workingtree(recommend_upgrade=False)
986
except errors.NoWorkingTree:
989
def _cloning_metadir(self):
990
"""Produce a metadir suitable for cloning with.
992
:returns: (destination_bzrdir_format, source_repository)
994
result_format = self._format.__class__()
997
branch = self.open_branch()
998
source_repository = branch.repository
999
result_format._branch_format = branch._format
1000
except errors.NotBranchError:
1001
source_branch = None
1002
source_repository = self.open_repository()
1003
except errors.NoRepositoryPresent:
1004
source_repository = None
1006
# XXX TODO: This isinstance is here because we have not implemented
1007
# the fix recommended in bug # 103195 - to delegate this choice the
1008
# repository itself.
1009
repo_format = source_repository._format
1010
if not isinstance(repo_format, remote.RemoteRepositoryFormat):
1011
result_format.repository_format = repo_format
1013
# TODO: Couldn't we just probe for the format in these cases,
1014
# rather than opening the whole tree? It would be a little
1015
# faster. mbp 20070401
1016
tree = self.open_workingtree(recommend_upgrade=False)
1017
except (errors.NoWorkingTree, errors.NotLocalUrl):
1018
result_format.workingtree_format = None
1020
result_format.workingtree_format = tree._format.__class__()
1021
return result_format, source_repository
1023
def cloning_metadir(self, require_stacking=False):
1024
"""Produce a metadir suitable for cloning or sprouting with.
1026
These operations may produce workingtrees (yes, even though they're
1027
"cloning" something that doesn't have a tree), so a viable workingtree
1028
format must be selected.
1030
:require_stacking: If True, non-stackable formats will be upgraded
1031
to similar stackable formats.
1032
:returns: a BzrDirFormat with all component formats either set
1033
appropriately or set to None if that component should not be
1036
format, repository = self._cloning_metadir()
1037
if format._workingtree_format is None:
1038
if repository is None:
1040
tree_format = repository._format._matchingbzrdir.workingtree_format
1041
format.workingtree_format = tree_format.__class__()
1042
if (require_stacking and not
1043
format.get_branch_format().supports_stacking()):
1044
# We need to make a stacked branch, but the default format for the
1045
# target doesn't support stacking. So force a branch that *can*
1047
from bzrlib.branch import BzrBranchFormat7
1048
format._branch_format = BzrBranchFormat7()
1049
mutter("using %r for stacking" % (format._branch_format,))
1050
from bzrlib.repofmt import pack_repo
1051
if format.repository_format.rich_root_data:
1052
repo_format = pack_repo.RepositoryFormatKnitPack5RichRoot()
1054
repo_format = pack_repo.RepositoryFormatKnitPack5()
1055
format.repository_format = repo_format
1058
def checkout_metadir(self):
1059
return self.cloning_metadir()
1061
def sprout(self, url, revision_id=None, force_new_repo=False,
1062
recurse='down', possible_transports=None,
1063
accelerator_tree=None, hardlink=False, stacked=False):
1064
"""Create a copy of this bzrdir prepared for use as a new line of
1067
If url's last component does not exist, it will be created.
1069
Attributes related to the identity of the source branch like
1070
branch nickname will be cleaned, a working tree is created
1071
whether one existed before or not; and a local branch is always
1074
if revision_id is not None, then the clone operation may tune
1075
itself to download less data.
1076
:param accelerator_tree: A tree which can be used for retrieving file
1077
contents more quickly than the revision tree, i.e. a workingtree.
1078
The revision tree will be used for cases where accelerator_tree's
1079
content is different.
1080
:param hardlink: If true, hard-link files from accelerator_tree,
1082
:param stacked: If true, create a stacked branch referring to the
1083
location of this control directory.
1085
target_transport = get_transport(url, possible_transports)
1086
target_transport.ensure_base()
1087
cloning_format = self.cloning_metadir(stacked)
1088
# Create/update the result branch
1089
result = cloning_format.initialize_on_transport(target_transport)
1091
source_branch = self.open_branch()
1092
source_repository = source_branch.repository
1094
stacked_branch_url = self.root_transport.base
1096
# if a stacked branch wasn't requested, we don't create one
1097
# even if the origin was stacked
1098
stacked_branch_url = None
1099
except errors.NotBranchError:
1100
source_branch = None
1102
source_repository = self.open_repository()
1103
except errors.NoRepositoryPresent:
1104
source_repository = None
1105
stacked_branch_url = None
1106
repository_policy = result.determine_repository_policy(
1107
force_new_repo, stacked_branch_url, require_stacking=stacked)
1108
result_repo = repository_policy.acquire_repository()
1109
if source_repository is not None:
1110
# Fetch while stacked to prevent unstacked fetch from
1112
result_repo.fetch(source_repository, revision_id=revision_id)
1114
if source_branch is None:
1115
# this is for sprouting a bzrdir without a branch; is that
1117
# Not especially, but it's part of the contract.
1118
result_branch = result.create_branch()
1120
# Force NULL revision to avoid using repository before stacking
1122
result_branch = source_branch.sprout(
1123
result, revision_id=_mod_revision.NULL_REVISION)
1124
parent_location = result_branch.get_parent()
1125
mutter("created new branch %r" % (result_branch,))
1126
repository_policy.configure_branch(result_branch)
1127
if source_branch is not None:
1128
source_branch.copy_content_into(result_branch, revision_id)
1129
# Override copy_content_into
1130
result_branch.set_parent(parent_location)
1132
# Create/update the result working tree
1133
if isinstance(target_transport, LocalTransport) and (
1134
result_repo is None or result_repo.make_working_trees()):
1135
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
1139
if wt.path2id('') is None:
1141
wt.set_root_id(self.open_workingtree.get_root_id())
1142
except errors.NoWorkingTree:
1148
if recurse == 'down':
1150
basis = wt.basis_tree()
1152
subtrees = basis.iter_references()
1153
elif source_branch is not None:
1154
basis = source_branch.basis_tree()
1156
subtrees = basis.iter_references()
1161
for path, file_id in subtrees:
1162
target = urlutils.join(url, urlutils.escape(path))
1163
sublocation = source_branch.reference_parent(file_id, path)
1164
sublocation.bzrdir.sprout(target,
1165
basis.get_reference_revision(file_id, path),
1166
force_new_repo=force_new_repo, recurse=recurse,
1169
if basis is not None:
1174
class BzrDirPreSplitOut(BzrDir):
1175
"""A common class for the all-in-one formats."""
1177
def __init__(self, _transport, _format):
1178
"""See BzrDir.__init__."""
1179
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
1180
self._control_files = lockable_files.LockableFiles(
1181
self.get_branch_transport(None),
1182
self._format._lock_file_name,
1183
self._format._lock_class)
1185
def break_lock(self):
1186
"""Pre-splitout bzrdirs do not suffer from stale locks."""
1187
raise NotImplementedError(self.break_lock)
1189
def cloning_metadir(self, require_stacking=False):
1190
"""Produce a metadir suitable for cloning with."""
1191
if require_stacking:
1192
return format_registry.make_bzrdir('1.6')
1193
return self._format.__class__()
1195
def clone(self, url, revision_id=None, force_new_repo=False,
1196
preserve_stacking=False):
1197
"""See BzrDir.clone().
1199
force_new_repo has no effect, since this family of formats always
1200
require a new repository.
1201
preserve_stacking has no effect, since no source branch using this
1202
family of formats can be stacked, so there is no stacking to preserve.
1204
self._make_tail(url)
1205
result = self._format._initialize_for_clone(url)
1206
self.open_repository().clone(result, revision_id=revision_id)
1207
from_branch = self.open_branch()
1208
from_branch.clone(result, revision_id=revision_id)
1210
tree = self.open_workingtree()
1211
except errors.NotLocalUrl:
1212
# make a new one, this format always has to have one.
1213
result._init_workingtree()
1218
def create_branch(self):
1219
"""See BzrDir.create_branch."""
1220
return self._format.get_branch_format().initialize(self)
1222
def destroy_branch(self):
1223
"""See BzrDir.destroy_branch."""
1224
raise errors.UnsupportedOperation(self.destroy_branch, self)
1226
def create_repository(self, shared=False):
1227
"""See BzrDir.create_repository."""
1229
raise errors.IncompatibleFormat('shared repository', self._format)
1230
return self.open_repository()
1232
def destroy_repository(self):
1233
"""See BzrDir.destroy_repository."""
1234
raise errors.UnsupportedOperation(self.destroy_repository, self)
1236
def create_workingtree(self, revision_id=None, from_branch=None,
1237
accelerator_tree=None, hardlink=False):
1238
"""See BzrDir.create_workingtree."""
1239
# The workingtree is sometimes created when the bzrdir is created,
1240
# but not when cloning.
1242
# this looks buggy but is not -really-
1243
# because this format creates the workingtree when the bzrdir is
1245
# clone and sprout will have set the revision_id
1246
# and that will have set it for us, its only
1247
# specific uses of create_workingtree in isolation
1248
# that can do wonky stuff here, and that only
1249
# happens for creating checkouts, which cannot be
1250
# done on this format anyway. So - acceptable wart.
1252
result = self.open_workingtree(recommend_upgrade=False)
1253
except errors.NoSuchFile:
1254
result = self._init_workingtree()
1255
if revision_id is not None:
1256
if revision_id == _mod_revision.NULL_REVISION:
1257
result.set_parent_ids([])
1259
result.set_parent_ids([revision_id])
1262
def _init_workingtree(self):
1263
from bzrlib.workingtree import WorkingTreeFormat2
1265
return WorkingTreeFormat2().initialize(self)
1266
except errors.NotLocalUrl:
1267
# Even though we can't access the working tree, we need to
1268
# create its control files.
1269
return WorkingTreeFormat2()._stub_initialize_on_transport(
1270
self.transport, self._control_files._file_mode)
1272
def destroy_workingtree(self):
1273
"""See BzrDir.destroy_workingtree."""
1274
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
1276
def destroy_workingtree_metadata(self):
1277
"""See BzrDir.destroy_workingtree_metadata."""
1278
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
1281
def get_branch_transport(self, branch_format):
1282
"""See BzrDir.get_branch_transport()."""
1283
if branch_format is None:
1284
return self.transport
1286
branch_format.get_format_string()
1287
except NotImplementedError:
1288
return self.transport
1289
raise errors.IncompatibleFormat(branch_format, self._format)
1291
def get_repository_transport(self, repository_format):
1292
"""See BzrDir.get_repository_transport()."""
1293
if repository_format is None:
1294
return self.transport
1296
repository_format.get_format_string()
1297
except NotImplementedError:
1298
return self.transport
1299
raise errors.IncompatibleFormat(repository_format, self._format)
1301
def get_workingtree_transport(self, workingtree_format):
1302
"""See BzrDir.get_workingtree_transport()."""
1303
if workingtree_format is None:
1304
return self.transport
1306
workingtree_format.get_format_string()
1307
except NotImplementedError:
1308
return self.transport
1309
raise errors.IncompatibleFormat(workingtree_format, self._format)
1311
def needs_format_conversion(self, format=None):
1312
"""See BzrDir.needs_format_conversion()."""
1313
# if the format is not the same as the system default,
1314
# an upgrade is needed.
1316
format = BzrDirFormat.get_default_format()
1317
return not isinstance(self._format, format.__class__)
1319
def open_branch(self, unsupported=False):
1320
"""See BzrDir.open_branch."""
1321
from bzrlib.branch import BzrBranchFormat4
1322
format = BzrBranchFormat4()
1323
self._check_supported(format, unsupported)
1324
return format.open(self, _found=True)
1326
def sprout(self, url, revision_id=None, force_new_repo=False,
1327
possible_transports=None, accelerator_tree=None,
1328
hardlink=False, stacked=False):
1329
"""See BzrDir.sprout()."""
1331
raise errors.UnstackableBranchFormat(
1332
self._format, self.root_transport.base)
1333
from bzrlib.workingtree import WorkingTreeFormat2
1334
self._make_tail(url)
1335
result = self._format._initialize_for_clone(url)
1337
self.open_repository().clone(result, revision_id=revision_id)
1338
except errors.NoRepositoryPresent:
1341
self.open_branch().sprout(result, revision_id=revision_id)
1342
except errors.NotBranchError:
1344
# we always want a working tree
1345
WorkingTreeFormat2().initialize(result,
1346
accelerator_tree=accelerator_tree,
1351
class BzrDir4(BzrDirPreSplitOut):
1352
"""A .bzr version 4 control object.
1354
This is a deprecated format and may be removed after sept 2006.
1357
def create_repository(self, shared=False):
1358
"""See BzrDir.create_repository."""
1359
return self._format.repository_format.initialize(self, shared)
1361
def needs_format_conversion(self, format=None):
1362
"""Format 4 dirs are always in need of conversion."""
1365
def open_repository(self):
1366
"""See BzrDir.open_repository."""
1367
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1368
return RepositoryFormat4().open(self, _found=True)
1371
class BzrDir5(BzrDirPreSplitOut):
1372
"""A .bzr version 5 control object.
1374
This is a deprecated format and may be removed after sept 2006.
1377
def open_repository(self):
1378
"""See BzrDir.open_repository."""
1379
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1380
return RepositoryFormat5().open(self, _found=True)
1382
def open_workingtree(self, _unsupported=False,
1383
recommend_upgrade=True):
1384
"""See BzrDir.create_workingtree."""
1385
from bzrlib.workingtree import WorkingTreeFormat2
1386
wt_format = WorkingTreeFormat2()
1387
# we don't warn here about upgrades; that ought to be handled for the
1389
return wt_format.open(self, _found=True)
1392
class BzrDir6(BzrDirPreSplitOut):
1393
"""A .bzr version 6 control object.
1395
This is a deprecated format and may be removed after sept 2006.
1398
def open_repository(self):
1399
"""See BzrDir.open_repository."""
1400
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1401
return RepositoryFormat6().open(self, _found=True)
1403
def open_workingtree(self, _unsupported=False,
1404
recommend_upgrade=True):
1405
"""See BzrDir.create_workingtree."""
1406
# we don't warn here about upgrades; that ought to be handled for the
1408
from bzrlib.workingtree import WorkingTreeFormat2
1409
return WorkingTreeFormat2().open(self, _found=True)
1412
class BzrDirMeta1(BzrDir):
1413
"""A .bzr meta version 1 control object.
1415
This is the first control object where the
1416
individual aspects are really split out: there are separate repository,
1417
workingtree and branch subdirectories and any subset of the three can be
1418
present within a BzrDir.
1421
def can_convert_format(self):
1422
"""See BzrDir.can_convert_format()."""
1425
def create_branch(self):
1426
"""See BzrDir.create_branch."""
1427
return self._format.get_branch_format().initialize(self)
1429
def destroy_branch(self):
1430
"""See BzrDir.create_branch."""
1431
self.transport.delete_tree('branch')
1433
def create_repository(self, shared=False):
1434
"""See BzrDir.create_repository."""
1435
return self._format.repository_format.initialize(self, shared)
1437
def destroy_repository(self):
1438
"""See BzrDir.destroy_repository."""
1439
self.transport.delete_tree('repository')
1441
def create_workingtree(self, revision_id=None, from_branch=None,
1442
accelerator_tree=None, hardlink=False):
1443
"""See BzrDir.create_workingtree."""
1444
return self._format.workingtree_format.initialize(
1445
self, revision_id, from_branch=from_branch,
1446
accelerator_tree=accelerator_tree, hardlink=hardlink)
1448
def destroy_workingtree(self):
1449
"""See BzrDir.destroy_workingtree."""
1450
wt = self.open_workingtree(recommend_upgrade=False)
1451
repository = wt.branch.repository
1452
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1453
wt.revert(old_tree=empty)
1454
self.destroy_workingtree_metadata()
1456
def destroy_workingtree_metadata(self):
1457
self.transport.delete_tree('checkout')
1459
def find_branch_format(self):
1460
"""Find the branch 'format' for this bzrdir.
1462
This might be a synthetic object for e.g. RemoteBranch and SVN.
1464
from bzrlib.branch import BranchFormat
1465
return BranchFormat.find_format(self)
1467
def _get_mkdir_mode(self):
1468
"""Figure out the mode to use when creating a bzrdir subdir."""
1469
temp_control = lockable_files.LockableFiles(self.transport, '',
1470
lockable_files.TransportLock)
1471
return temp_control._dir_mode
1473
def get_branch_reference(self):
1474
"""See BzrDir.get_branch_reference()."""
1475
from bzrlib.branch import BranchFormat
1476
format = BranchFormat.find_format(self)
1477
return format.get_reference(self)
1479
def get_branch_transport(self, branch_format):
1480
"""See BzrDir.get_branch_transport()."""
1481
if branch_format is None:
1482
return self.transport.clone('branch')
1484
branch_format.get_format_string()
1485
except NotImplementedError:
1486
raise errors.IncompatibleFormat(branch_format, self._format)
1488
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1489
except errors.FileExists:
1491
return self.transport.clone('branch')
1493
def get_repository_transport(self, repository_format):
1494
"""See BzrDir.get_repository_transport()."""
1495
if repository_format is None:
1496
return self.transport.clone('repository')
1498
repository_format.get_format_string()
1499
except NotImplementedError:
1500
raise errors.IncompatibleFormat(repository_format, self._format)
1502
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1503
except errors.FileExists:
1505
return self.transport.clone('repository')
1507
def get_workingtree_transport(self, workingtree_format):
1508
"""See BzrDir.get_workingtree_transport()."""
1509
if workingtree_format is None:
1510
return self.transport.clone('checkout')
1512
workingtree_format.get_format_string()
1513
except NotImplementedError:
1514
raise errors.IncompatibleFormat(workingtree_format, self._format)
1516
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1517
except errors.FileExists:
1519
return self.transport.clone('checkout')
1521
def needs_format_conversion(self, format=None):
1522
"""See BzrDir.needs_format_conversion()."""
1524
format = BzrDirFormat.get_default_format()
1525
if not isinstance(self._format, format.__class__):
1526
# it is not a meta dir format, conversion is needed.
1528
# we might want to push this down to the repository?
1530
if not isinstance(self.open_repository()._format,
1531
format.repository_format.__class__):
1532
# the repository needs an upgrade.
1534
except errors.NoRepositoryPresent:
1537
if not isinstance(self.open_branch()._format,
1538
format.get_branch_format().__class__):
1539
# the branch needs an upgrade.
1541
except errors.NotBranchError:
1544
my_wt = self.open_workingtree(recommend_upgrade=False)
1545
if not isinstance(my_wt._format,
1546
format.workingtree_format.__class__):
1547
# the workingtree needs an upgrade.
1549
except (errors.NoWorkingTree, errors.NotLocalUrl):
1553
def open_branch(self, unsupported=False):
1554
"""See BzrDir.open_branch."""
1555
format = self.find_branch_format()
1556
self._check_supported(format, unsupported)
1557
return format.open(self, _found=True)
1559
def open_repository(self, unsupported=False):
1560
"""See BzrDir.open_repository."""
1561
from bzrlib.repository import RepositoryFormat
1562
format = RepositoryFormat.find_format(self)
1563
self._check_supported(format, unsupported)
1564
return format.open(self, _found=True)
1566
def open_workingtree(self, unsupported=False,
1567
recommend_upgrade=True):
1568
"""See BzrDir.open_workingtree."""
1569
from bzrlib.workingtree import WorkingTreeFormat
1570
format = WorkingTreeFormat.find_format(self)
1571
self._check_supported(format, unsupported,
1573
basedir=self.root_transport.base)
1574
return format.open(self, _found=True)
1576
def _get_config(self):
1577
return config.BzrDirConfig(self.transport)
1580
class BzrDirFormat(object):
1581
"""An encapsulation of the initialization and open routines for a format.
1583
Formats provide three things:
1584
* An initialization routine,
1588
Formats are placed in a dict by their format string for reference
1589
during bzrdir opening. These should be subclasses of BzrDirFormat
1592
Once a format is deprecated, just deprecate the initialize and open
1593
methods on the format class. Do not deprecate the object, as the
1594
object will be created every system load.
1597
_default_format = None
1598
"""The default format used for new .bzr dirs."""
1601
"""The known formats."""
1603
_control_formats = []
1604
"""The registered control formats - .bzr, ....
1606
This is a list of BzrDirFormat objects.
1609
_control_server_formats = []
1610
"""The registered control server formats, e.g. RemoteBzrDirs.
1612
This is a list of BzrDirFormat objects.
1615
_lock_file_name = 'branch-lock'
1617
# _lock_class must be set in subclasses to the lock type, typ.
1618
# TransportLock or LockDir
1621
def find_format(klass, transport, _server_formats=True):
1622
"""Return the format present at transport."""
1624
formats = klass._control_server_formats + klass._control_formats
1626
formats = klass._control_formats
1627
for format in formats:
1629
return format.probe_transport(transport)
1630
except errors.NotBranchError:
1631
# this format does not find a control dir here.
1633
raise errors.NotBranchError(path=transport.base)
1636
def probe_transport(klass, transport):
1637
"""Return the .bzrdir style format present in a directory."""
1639
format_string = transport.get(".bzr/branch-format").read()
1640
except errors.NoSuchFile:
1641
raise errors.NotBranchError(path=transport.base)
1644
return klass._formats[format_string]
1646
raise errors.UnknownFormatError(format=format_string, kind='bzrdir')
1649
def get_default_format(klass):
1650
"""Return the current default format."""
1651
return klass._default_format
1653
def get_format_string(self):
1654
"""Return the ASCII format string that identifies this format."""
1655
raise NotImplementedError(self.get_format_string)
1657
def get_format_description(self):
1658
"""Return the short description for this format."""
1659
raise NotImplementedError(self.get_format_description)
1661
def get_converter(self, format=None):
1662
"""Return the converter to use to convert bzrdirs needing converts.
1664
This returns a bzrlib.bzrdir.Converter object.
1666
This should return the best upgrader to step this format towards the
1667
current default format. In the case of plugins we can/should provide
1668
some means for them to extend the range of returnable converters.
1670
:param format: Optional format to override the default format of the
1673
raise NotImplementedError(self.get_converter)
1675
def initialize(self, url, possible_transports=None):
1676
"""Create a bzr control dir at this url and return an opened copy.
1678
Subclasses should typically override initialize_on_transport
1679
instead of this method.
1681
return self.initialize_on_transport(get_transport(url,
1682
possible_transports))
1684
def initialize_on_transport(self, transport):
1685
"""Initialize a new bzrdir in the base directory of a Transport."""
1686
# Since we don't have a .bzr directory, inherit the
1687
# mode from the root directory
1688
temp_control = lockable_files.LockableFiles(transport,
1689
'', lockable_files.TransportLock)
1690
temp_control._transport.mkdir('.bzr',
1691
# FIXME: RBC 20060121 don't peek under
1693
mode=temp_control._dir_mode)
1694
if sys.platform == 'win32' and isinstance(transport, LocalTransport):
1695
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
1696
file_mode = temp_control._file_mode
1698
bzrdir_transport = transport.clone('.bzr')
1699
utf8_files = [('README',
1700
"This is a Bazaar control directory.\n"
1701
"Do not change any files in this directory.\n"
1702
"See http://bazaar-vcs.org/ for more information about Bazaar.\n"),
1703
('branch-format', self.get_format_string()),
1705
# NB: no need to escape relative paths that are url safe.
1706
control_files = lockable_files.LockableFiles(bzrdir_transport,
1707
self._lock_file_name, self._lock_class)
1708
control_files.create_lock()
1709
control_files.lock_write()
1711
for (filename, content) in utf8_files:
1712
bzrdir_transport.put_bytes(filename, content,
1715
control_files.unlock()
1716
return self.open(transport, _found=True)
1718
def is_supported(self):
1719
"""Is this format supported?
1721
Supported formats must be initializable and openable.
1722
Unsupported formats may not support initialization or committing or
1723
some other features depending on the reason for not being supported.
1727
def same_model(self, target_format):
1728
return (self.repository_format.rich_root_data ==
1729
target_format.rich_root_data)
1732
def known_formats(klass):
1733
"""Return all the known formats.
1735
Concrete formats should override _known_formats.
1737
# There is double indirection here to make sure that control
1738
# formats used by more than one dir format will only be probed
1739
# once. This can otherwise be quite expensive for remote connections.
1741
for format in klass._control_formats:
1742
result.update(format._known_formats())
1746
def _known_formats(klass):
1747
"""Return the known format instances for this control format."""
1748
return set(klass._formats.values())
1750
def open(self, transport, _found=False):
1751
"""Return an instance of this format for the dir transport points at.
1753
_found is a private parameter, do not use it.
1756
found_format = BzrDirFormat.find_format(transport)
1757
if not isinstance(found_format, self.__class__):
1758
raise AssertionError("%s was asked to open %s, but it seems to need "
1760
% (self, transport, found_format))
1761
return self._open(transport)
1763
def _open(self, transport):
1764
"""Template method helper for opening BzrDirectories.
1766
This performs the actual open and any additional logic or parameter
1769
raise NotImplementedError(self._open)
1772
def register_format(klass, format):
1773
klass._formats[format.get_format_string()] = format
1776
def register_control_format(klass, format):
1777
"""Register a format that does not use '.bzr' for its control dir.
1779
TODO: This should be pulled up into a 'ControlDirFormat' base class
1780
which BzrDirFormat can inherit from, and renamed to register_format
1781
there. It has been done without that for now for simplicity of
1784
klass._control_formats.append(format)
1787
def register_control_server_format(klass, format):
1788
"""Register a control format for client-server environments.
1790
These formats will be tried before ones registered with
1791
register_control_format. This gives implementations that decide to the
1792
chance to grab it before anything looks at the contents of the format
1795
klass._control_server_formats.append(format)
1798
def _set_default_format(klass, format):
1799
"""Set default format (for testing behavior of defaults only)"""
1800
klass._default_format = format
1804
return self.get_format_string().rstrip()
1807
def unregister_format(klass, format):
1808
del klass._formats[format.get_format_string()]
1811
def unregister_control_format(klass, format):
1812
klass._control_formats.remove(format)
1815
class BzrDirFormat4(BzrDirFormat):
1816
"""Bzr dir format 4.
1818
This format is a combined format for working tree, branch and repository.
1820
- Format 1 working trees [always]
1821
- Format 4 branches [always]
1822
- Format 4 repositories [always]
1824
This format is deprecated: it indexes texts using a text it which is
1825
removed in format 5; write support for this format has been removed.
1828
_lock_class = lockable_files.TransportLock
1830
def get_format_string(self):
1831
"""See BzrDirFormat.get_format_string()."""
1832
return "Bazaar-NG branch, format 0.0.4\n"
1834
def get_format_description(self):
1835
"""See BzrDirFormat.get_format_description()."""
1836
return "All-in-one format 4"
1838
def get_converter(self, format=None):
1839
"""See BzrDirFormat.get_converter()."""
1840
# there is one and only one upgrade path here.
1841
return ConvertBzrDir4To5()
1843
def initialize_on_transport(self, transport):
1844
"""Format 4 branches cannot be created."""
1845
raise errors.UninitializableFormat(self)
1847
def is_supported(self):
1848
"""Format 4 is not supported.
1850
It is not supported because the model changed from 4 to 5 and the
1851
conversion logic is expensive - so doing it on the fly was not
1856
def _open(self, transport):
1857
"""See BzrDirFormat._open."""
1858
return BzrDir4(transport, self)
1860
def __return_repository_format(self):
1861
"""Circular import protection."""
1862
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1863
return RepositoryFormat4()
1864
repository_format = property(__return_repository_format)
1867
class BzrDirFormat5(BzrDirFormat):
1868
"""Bzr control format 5.
1870
This format is a combined format for working tree, branch and repository.
1872
- Format 2 working trees [always]
1873
- Format 4 branches [always]
1874
- Format 5 repositories [always]
1875
Unhashed stores in the repository.
1878
_lock_class = lockable_files.TransportLock
1880
def get_format_string(self):
1881
"""See BzrDirFormat.get_format_string()."""
1882
return "Bazaar-NG branch, format 5\n"
1884
def get_branch_format(self):
1885
from bzrlib import branch
1886
return branch.BzrBranchFormat4()
1888
def get_format_description(self):
1889
"""See BzrDirFormat.get_format_description()."""
1890
return "All-in-one format 5"
1892
def get_converter(self, format=None):
1893
"""See BzrDirFormat.get_converter()."""
1894
# there is one and only one upgrade path here.
1895
return ConvertBzrDir5To6()
1897
def _initialize_for_clone(self, url):
1898
return self.initialize_on_transport(get_transport(url), _cloning=True)
1900
def initialize_on_transport(self, transport, _cloning=False):
1901
"""Format 5 dirs always have working tree, branch and repository.
1903
Except when they are being cloned.
1905
from bzrlib.branch import BzrBranchFormat4
1906
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1907
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1908
RepositoryFormat5().initialize(result, _internal=True)
1910
branch = BzrBranchFormat4().initialize(result)
1911
result._init_workingtree()
1914
def _open(self, transport):
1915
"""See BzrDirFormat._open."""
1916
return BzrDir5(transport, self)
1918
def __return_repository_format(self):
1919
"""Circular import protection."""
1920
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1921
return RepositoryFormat5()
1922
repository_format = property(__return_repository_format)
1925
class BzrDirFormat6(BzrDirFormat):
1926
"""Bzr control format 6.
1928
This format is a combined format for working tree, branch and repository.
1930
- Format 2 working trees [always]
1931
- Format 4 branches [always]
1932
- Format 6 repositories [always]
1935
_lock_class = lockable_files.TransportLock
1937
def get_format_string(self):
1938
"""See BzrDirFormat.get_format_string()."""
1939
return "Bazaar-NG branch, format 6\n"
1941
def get_format_description(self):
1942
"""See BzrDirFormat.get_format_description()."""
1943
return "All-in-one format 6"
1945
def get_branch_format(self):
1946
from bzrlib import branch
1947
return branch.BzrBranchFormat4()
1949
def get_converter(self, format=None):
1950
"""See BzrDirFormat.get_converter()."""
1951
# there is one and only one upgrade path here.
1952
return ConvertBzrDir6ToMeta()
1954
def _initialize_for_clone(self, url):
1955
return self.initialize_on_transport(get_transport(url), _cloning=True)
1957
def initialize_on_transport(self, transport, _cloning=False):
1958
"""Format 6 dirs always have working tree, branch and repository.
1960
Except when they are being cloned.
1962
from bzrlib.branch import BzrBranchFormat4
1963
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1964
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1965
RepositoryFormat6().initialize(result, _internal=True)
1967
branch = BzrBranchFormat4().initialize(result)
1968
result._init_workingtree()
1971
def _open(self, transport):
1972
"""See BzrDirFormat._open."""
1973
return BzrDir6(transport, self)
1975
def __return_repository_format(self):
1976
"""Circular import protection."""
1977
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1978
return RepositoryFormat6()
1979
repository_format = property(__return_repository_format)
1982
class BzrDirMetaFormat1(BzrDirFormat):
1983
"""Bzr meta control format 1
1985
This is the first format with split out working tree, branch and repository
1988
- Format 3 working trees [optional]
1989
- Format 5 branches [optional]
1990
- Format 7 repositories [optional]
1993
_lock_class = lockdir.LockDir
1996
self._workingtree_format = None
1997
self._branch_format = None
1999
def __eq__(self, other):
2000
if other.__class__ is not self.__class__:
2002
if other.repository_format != self.repository_format:
2004
if other.workingtree_format != self.workingtree_format:
2008
def __ne__(self, other):
2009
return not self == other
2011
def get_branch_format(self):
2012
if self._branch_format is None:
2013
from bzrlib.branch import BranchFormat
2014
self._branch_format = BranchFormat.get_default_format()
2015
return self._branch_format
2017
def set_branch_format(self, format):
2018
self._branch_format = format
2020
def get_converter(self, format=None):
2021
"""See BzrDirFormat.get_converter()."""
2023
format = BzrDirFormat.get_default_format()
2024
if not isinstance(self, format.__class__):
2025
# converting away from metadir is not implemented
2026
raise NotImplementedError(self.get_converter)
2027
return ConvertMetaToMeta(format)
2029
def get_format_string(self):
2030
"""See BzrDirFormat.get_format_string()."""
2031
return "Bazaar-NG meta directory, format 1\n"
2033
def get_format_description(self):
2034
"""See BzrDirFormat.get_format_description()."""
2035
return "Meta directory format 1"
2037
def _open(self, transport):
2038
"""See BzrDirFormat._open."""
2039
return BzrDirMeta1(transport, self)
2041
def __return_repository_format(self):
2042
"""Circular import protection."""
2043
if getattr(self, '_repository_format', None):
2044
return self._repository_format
2045
from bzrlib.repository import RepositoryFormat
2046
return RepositoryFormat.get_default_format()
2048
def __set_repository_format(self, value):
2049
"""Allow changing the repository format for metadir formats."""
2050
self._repository_format = value
2052
repository_format = property(__return_repository_format, __set_repository_format)
2054
def __get_workingtree_format(self):
2055
if self._workingtree_format is None:
2056
from bzrlib.workingtree import WorkingTreeFormat
2057
self._workingtree_format = WorkingTreeFormat.get_default_format()
2058
return self._workingtree_format
2060
def __set_workingtree_format(self, wt_format):
2061
self._workingtree_format = wt_format
2063
workingtree_format = property(__get_workingtree_format,
2064
__set_workingtree_format)
2067
# Register bzr control format
2068
BzrDirFormat.register_control_format(BzrDirFormat)
2070
# Register bzr formats
2071
BzrDirFormat.register_format(BzrDirFormat4())
2072
BzrDirFormat.register_format(BzrDirFormat5())
2073
BzrDirFormat.register_format(BzrDirFormat6())
2074
__default_format = BzrDirMetaFormat1()
2075
BzrDirFormat.register_format(__default_format)
2076
BzrDirFormat._default_format = __default_format
2079
class Converter(object):
2080
"""Converts a disk format object from one format to another."""
2082
def convert(self, to_convert, pb):
2083
"""Perform the conversion of to_convert, giving feedback via pb.
2085
:param to_convert: The disk object to convert.
2086
:param pb: a progress bar to use for progress information.
2089
def step(self, message):
2090
"""Update the pb by a step."""
2092
self.pb.update(message, self.count, self.total)
2095
class ConvertBzrDir4To5(Converter):
2096
"""Converts format 4 bzr dirs to format 5."""
2099
super(ConvertBzrDir4To5, self).__init__()
2100
self.converted_revs = set()
2101
self.absent_revisions = set()
2105
def convert(self, to_convert, pb):
2106
"""See Converter.convert()."""
2107
self.bzrdir = to_convert
2109
self.pb.note('starting upgrade from format 4 to 5')
2110
if isinstance(self.bzrdir.transport, LocalTransport):
2111
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
2112
self._convert_to_weaves()
2113
return BzrDir.open(self.bzrdir.root_transport.base)
2115
def _convert_to_weaves(self):
2116
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
2119
stat = self.bzrdir.transport.stat('weaves')
2120
if not S_ISDIR(stat.st_mode):
2121
self.bzrdir.transport.delete('weaves')
2122
self.bzrdir.transport.mkdir('weaves')
2123
except errors.NoSuchFile:
2124
self.bzrdir.transport.mkdir('weaves')
2125
# deliberately not a WeaveFile as we want to build it up slowly.
2126
self.inv_weave = Weave('inventory')
2127
# holds in-memory weaves for all files
2128
self.text_weaves = {}
2129
self.bzrdir.transport.delete('branch-format')
2130
self.branch = self.bzrdir.open_branch()
2131
self._convert_working_inv()
2132
rev_history = self.branch.revision_history()
2133
# to_read is a stack holding the revisions we still need to process;
2134
# appending to it adds new highest-priority revisions
2135
self.known_revisions = set(rev_history)
2136
self.to_read = rev_history[-1:]
2138
rev_id = self.to_read.pop()
2139
if (rev_id not in self.revisions
2140
and rev_id not in self.absent_revisions):
2141
self._load_one_rev(rev_id)
2143
to_import = self._make_order()
2144
for i, rev_id in enumerate(to_import):
2145
self.pb.update('converting revision', i, len(to_import))
2146
self._convert_one_rev(rev_id)
2148
self._write_all_weaves()
2149
self._write_all_revs()
2150
self.pb.note('upgraded to weaves:')
2151
self.pb.note(' %6d revisions and inventories', len(self.revisions))
2152
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
2153
self.pb.note(' %6d texts', self.text_count)
2154
self._cleanup_spare_files_after_format4()
2155
self.branch._transport.put_bytes(
2157
BzrDirFormat5().get_format_string(),
2158
mode=self.bzrdir._get_file_mode())
2160
def _cleanup_spare_files_after_format4(self):
2161
# FIXME working tree upgrade foo.
2162
for n in 'merged-patches', 'pending-merged-patches':
2164
## assert os.path.getsize(p) == 0
2165
self.bzrdir.transport.delete(n)
2166
except errors.NoSuchFile:
2168
self.bzrdir.transport.delete_tree('inventory-store')
2169
self.bzrdir.transport.delete_tree('text-store')
2171
def _convert_working_inv(self):
2172
inv = xml4.serializer_v4.read_inventory(
2173
self.branch._transport.get('inventory'))
2174
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv, working=True)
2175
self.branch._transport.put_bytes('inventory', new_inv_xml,
2176
mode=self.bzrdir._get_file_mode())
2178
def _write_all_weaves(self):
2179
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
2180
weave_transport = self.bzrdir.transport.clone('weaves')
2181
weaves = WeaveStore(weave_transport, prefixed=False)
2182
transaction = WriteTransaction()
2186
for file_id, file_weave in self.text_weaves.items():
2187
self.pb.update('writing weave', i, len(self.text_weaves))
2188
weaves._put_weave(file_id, file_weave, transaction)
2190
self.pb.update('inventory', 0, 1)
2191
controlweaves._put_weave('inventory', self.inv_weave, transaction)
2192
self.pb.update('inventory', 1, 1)
2196
def _write_all_revs(self):
2197
"""Write all revisions out in new form."""
2198
self.bzrdir.transport.delete_tree('revision-store')
2199
self.bzrdir.transport.mkdir('revision-store')
2200
revision_transport = self.bzrdir.transport.clone('revision-store')
2202
from bzrlib.xml5 import serializer_v5
2203
from bzrlib.repofmt.weaverepo import RevisionTextStore
2204
revision_store = RevisionTextStore(revision_transport,
2205
serializer_v5, False, versionedfile.PrefixMapper(),
2206
lambda:True, lambda:True)
2208
for i, rev_id in enumerate(self.converted_revs):
2209
self.pb.update('write revision', i, len(self.converted_revs))
2210
text = serializer_v5.write_revision_to_string(
2211
self.revisions[rev_id])
2213
revision_store.add_lines(key, None, osutils.split_lines(text))
2217
def _load_one_rev(self, rev_id):
2218
"""Load a revision object into memory.
2220
Any parents not either loaded or abandoned get queued to be
2222
self.pb.update('loading revision',
2223
len(self.revisions),
2224
len(self.known_revisions))
2225
if not self.branch.repository.has_revision(rev_id):
2227
self.pb.note('revision {%s} not present in branch; '
2228
'will be converted as a ghost',
2230
self.absent_revisions.add(rev_id)
2232
rev = self.branch.repository.get_revision(rev_id)
2233
for parent_id in rev.parent_ids:
2234
self.known_revisions.add(parent_id)
2235
self.to_read.append(parent_id)
2236
self.revisions[rev_id] = rev
2238
def _load_old_inventory(self, rev_id):
2239
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
2240
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
2241
inv.revision_id = rev_id
2242
rev = self.revisions[rev_id]
2245
def _load_updated_inventory(self, rev_id):
2246
inv_xml = self.inv_weave.get_text(rev_id)
2247
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml, rev_id)
2250
def _convert_one_rev(self, rev_id):
2251
"""Convert revision and all referenced objects to new format."""
2252
rev = self.revisions[rev_id]
2253
inv = self._load_old_inventory(rev_id)
2254
present_parents = [p for p in rev.parent_ids
2255
if p not in self.absent_revisions]
2256
self._convert_revision_contents(rev, inv, present_parents)
2257
self._store_new_inv(rev, inv, present_parents)
2258
self.converted_revs.add(rev_id)
2260
def _store_new_inv(self, rev, inv, present_parents):
2261
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
2262
new_inv_sha1 = sha_string(new_inv_xml)
2263
self.inv_weave.add_lines(rev.revision_id,
2265
new_inv_xml.splitlines(True))
2266
rev.inventory_sha1 = new_inv_sha1
2268
def _convert_revision_contents(self, rev, inv, present_parents):
2269
"""Convert all the files within a revision.
2271
Also upgrade the inventory to refer to the text revision ids."""
2272
rev_id = rev.revision_id
2273
mutter('converting texts of revision {%s}',
2275
parent_invs = map(self._load_updated_inventory, present_parents)
2276
entries = inv.iter_entries()
2278
for path, ie in entries:
2279
self._convert_file_version(rev, ie, parent_invs)
2281
def _convert_file_version(self, rev, ie, parent_invs):
2282
"""Convert one version of one file.
2284
The file needs to be added into the weave if it is a merge
2285
of >=2 parents or if it's changed from its parent.
2287
file_id = ie.file_id
2288
rev_id = rev.revision_id
2289
w = self.text_weaves.get(file_id)
2292
self.text_weaves[file_id] = w
2293
text_changed = False
2294
parent_candiate_entries = ie.parent_candidates(parent_invs)
2295
heads = graph.Graph(self).heads(parent_candiate_entries.keys())
2296
# XXX: Note that this is unordered - and this is tolerable because
2297
# the previous code was also unordered.
2298
previous_entries = dict((head, parent_candiate_entries[head]) for head
2300
self.snapshot_ie(previous_entries, ie, w, rev_id)
2303
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
2304
def get_parents(self, revision_ids):
2305
for revision_id in revision_ids:
2306
yield self.revisions[revision_id].parent_ids
2308
def get_parent_map(self, revision_ids):
2309
"""See graph._StackedParentsProvider.get_parent_map"""
2310
return dict((revision_id, self.revisions[revision_id])
2311
for revision_id in revision_ids
2312
if revision_id in self.revisions)
2314
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
2315
# TODO: convert this logic, which is ~= snapshot to
2316
# a call to:. This needs the path figured out. rather than a work_tree
2317
# a v4 revision_tree can be given, or something that looks enough like
2318
# one to give the file content to the entry if it needs it.
2319
# and we need something that looks like a weave store for snapshot to
2321
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
2322
if len(previous_revisions) == 1:
2323
previous_ie = previous_revisions.values()[0]
2324
if ie._unchanged(previous_ie):
2325
ie.revision = previous_ie.revision
2328
text = self.branch.repository._text_store.get(ie.text_id)
2329
file_lines = text.readlines()
2330
w.add_lines(rev_id, previous_revisions, file_lines)
2331
self.text_count += 1
2333
w.add_lines(rev_id, previous_revisions, [])
2334
ie.revision = rev_id
2336
def _make_order(self):
2337
"""Return a suitable order for importing revisions.
2339
The order must be such that an revision is imported after all
2340
its (present) parents.
2342
todo = set(self.revisions.keys())
2343
done = self.absent_revisions.copy()
2346
# scan through looking for a revision whose parents
2348
for rev_id in sorted(list(todo)):
2349
rev = self.revisions[rev_id]
2350
parent_ids = set(rev.parent_ids)
2351
if parent_ids.issubset(done):
2352
# can take this one now
2353
order.append(rev_id)
2359
class ConvertBzrDir5To6(Converter):
2360
"""Converts format 5 bzr dirs to format 6."""
2362
def convert(self, to_convert, pb):
2363
"""See Converter.convert()."""
2364
self.bzrdir = to_convert
2366
self.pb.note('starting upgrade from format 5 to 6')
2367
self._convert_to_prefixed()
2368
return BzrDir.open(self.bzrdir.root_transport.base)
2370
def _convert_to_prefixed(self):
2371
from bzrlib.store import TransportStore
2372
self.bzrdir.transport.delete('branch-format')
2373
for store_name in ["weaves", "revision-store"]:
2374
self.pb.note("adding prefixes to %s" % store_name)
2375
store_transport = self.bzrdir.transport.clone(store_name)
2376
store = TransportStore(store_transport, prefixed=True)
2377
for urlfilename in store_transport.list_dir('.'):
2378
filename = urlutils.unescape(urlfilename)
2379
if (filename.endswith(".weave") or
2380
filename.endswith(".gz") or
2381
filename.endswith(".sig")):
2382
file_id, suffix = os.path.splitext(filename)
2386
new_name = store._mapper.map((file_id,)) + suffix
2387
# FIXME keep track of the dirs made RBC 20060121
2389
store_transport.move(filename, new_name)
2390
except errors.NoSuchFile: # catches missing dirs strangely enough
2391
store_transport.mkdir(osutils.dirname(new_name))
2392
store_transport.move(filename, new_name)
2393
self.bzrdir.transport.put_bytes(
2395
BzrDirFormat6().get_format_string(),
2396
mode=self.bzrdir._get_file_mode())
2399
class ConvertBzrDir6ToMeta(Converter):
2400
"""Converts format 6 bzr dirs to metadirs."""
2402
def convert(self, to_convert, pb):
2403
"""See Converter.convert()."""
2404
from bzrlib.repofmt.weaverepo import RepositoryFormat7
2405
from bzrlib.branch import BzrBranchFormat5
2406
self.bzrdir = to_convert
2409
self.total = 20 # the steps we know about
2410
self.garbage_inventories = []
2411
self.dir_mode = self.bzrdir._get_dir_mode()
2412
self.file_mode = self.bzrdir._get_file_mode()
2414
self.pb.note('starting upgrade from format 6 to metadir')
2415
self.bzrdir.transport.put_bytes(
2417
"Converting to format 6",
2418
mode=self.file_mode)
2419
# its faster to move specific files around than to open and use the apis...
2420
# first off, nuke ancestry.weave, it was never used.
2422
self.step('Removing ancestry.weave')
2423
self.bzrdir.transport.delete('ancestry.weave')
2424
except errors.NoSuchFile:
2426
# find out whats there
2427
self.step('Finding branch files')
2428
last_revision = self.bzrdir.open_branch().last_revision()
2429
bzrcontents = self.bzrdir.transport.list_dir('.')
2430
for name in bzrcontents:
2431
if name.startswith('basis-inventory.'):
2432
self.garbage_inventories.append(name)
2433
# create new directories for repository, working tree and branch
2434
repository_names = [('inventory.weave', True),
2435
('revision-store', True),
2437
self.step('Upgrading repository ')
2438
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2439
self.make_lock('repository')
2440
# we hard code the formats here because we are converting into
2441
# the meta format. The meta format upgrader can take this to a
2442
# future format within each component.
2443
self.put_format('repository', RepositoryFormat7())
2444
for entry in repository_names:
2445
self.move_entry('repository', entry)
2447
self.step('Upgrading branch ')
2448
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2449
self.make_lock('branch')
2450
self.put_format('branch', BzrBranchFormat5())
2451
branch_files = [('revision-history', True),
2452
('branch-name', True),
2454
for entry in branch_files:
2455
self.move_entry('branch', entry)
2457
checkout_files = [('pending-merges', True),
2458
('inventory', True),
2459
('stat-cache', False)]
2460
# If a mandatory checkout file is not present, the branch does not have
2461
# a functional checkout. Do not create a checkout in the converted
2463
for name, mandatory in checkout_files:
2464
if mandatory and name not in bzrcontents:
2465
has_checkout = False
2469
if not has_checkout:
2470
self.pb.note('No working tree.')
2471
# If some checkout files are there, we may as well get rid of them.
2472
for name, mandatory in checkout_files:
2473
if name in bzrcontents:
2474
self.bzrdir.transport.delete(name)
2476
from bzrlib.workingtree import WorkingTreeFormat3
2477
self.step('Upgrading working tree')
2478
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2479
self.make_lock('checkout')
2481
'checkout', WorkingTreeFormat3())
2482
self.bzrdir.transport.delete_multi(
2483
self.garbage_inventories, self.pb)
2484
for entry in checkout_files:
2485
self.move_entry('checkout', entry)
2486
if last_revision is not None:
2487
self.bzrdir.transport.put_bytes(
2488
'checkout/last-revision', last_revision)
2489
self.bzrdir.transport.put_bytes(
2491
BzrDirMetaFormat1().get_format_string(),
2492
mode=self.file_mode)
2493
return BzrDir.open(self.bzrdir.root_transport.base)
2495
def make_lock(self, name):
2496
"""Make a lock for the new control dir name."""
2497
self.step('Make %s lock' % name)
2498
ld = lockdir.LockDir(self.bzrdir.transport,
2500
file_modebits=self.file_mode,
2501
dir_modebits=self.dir_mode)
2504
def move_entry(self, new_dir, entry):
2505
"""Move then entry name into new_dir."""
2507
mandatory = entry[1]
2508
self.step('Moving %s' % name)
2510
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2511
except errors.NoSuchFile:
2515
def put_format(self, dirname, format):
2516
self.bzrdir.transport.put_bytes('%s/format' % dirname,
2517
format.get_format_string(),
2521
class ConvertMetaToMeta(Converter):
2522
"""Converts the components of metadirs."""
2524
def __init__(self, target_format):
2525
"""Create a metadir to metadir converter.
2527
:param target_format: The final metadir format that is desired.
2529
self.target_format = target_format
2531
def convert(self, to_convert, pb):
2532
"""See Converter.convert()."""
2533
self.bzrdir = to_convert
2537
self.step('checking repository format')
2539
repo = self.bzrdir.open_repository()
2540
except errors.NoRepositoryPresent:
2543
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2544
from bzrlib.repository import CopyConverter
2545
self.pb.note('starting repository conversion')
2546
converter = CopyConverter(self.target_format.repository_format)
2547
converter.convert(repo, pb)
2549
branch = self.bzrdir.open_branch()
2550
except errors.NotBranchError:
2553
# TODO: conversions of Branch and Tree should be done by
2554
# InterXFormat lookups/some sort of registry.
2555
# Avoid circular imports
2556
from bzrlib import branch as _mod_branch
2557
old = branch._format.__class__
2558
new = self.target_format.get_branch_format().__class__
2560
if (old == _mod_branch.BzrBranchFormat5 and
2561
new in (_mod_branch.BzrBranchFormat6,
2562
_mod_branch.BzrBranchFormat7)):
2563
branch_converter = _mod_branch.Converter5to6()
2564
elif (old == _mod_branch.BzrBranchFormat6 and
2565
new == _mod_branch.BzrBranchFormat7):
2566
branch_converter = _mod_branch.Converter6to7()
2568
raise errors.BadConversionTarget("No converter", new)
2569
branch_converter.convert(branch)
2570
branch = self.bzrdir.open_branch()
2571
old = branch._format.__class__
2573
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2574
except (errors.NoWorkingTree, errors.NotLocalUrl):
2577
# TODO: conversions of Branch and Tree should be done by
2578
# InterXFormat lookups
2579
if (isinstance(tree, workingtree.WorkingTree3) and
2580
not isinstance(tree, workingtree_4.WorkingTree4) and
2581
isinstance(self.target_format.workingtree_format,
2582
workingtree_4.WorkingTreeFormat4)):
2583
workingtree_4.Converter3to4().convert(tree)
2587
# This is not in remote.py because it's small, and needs to be registered.
2588
# Putting it in remote.py creates a circular import problem.
2589
# we can make it a lazy object if the control formats is turned into something
2591
class RemoteBzrDirFormat(BzrDirMetaFormat1):
2592
"""Format representing bzrdirs accessed via a smart server"""
2594
def get_format_description(self):
2595
return 'bzr remote bzrdir'
2598
def probe_transport(klass, transport):
2599
"""Return a RemoteBzrDirFormat object if it looks possible."""
2601
medium = transport.get_smart_medium()
2602
except (NotImplementedError, AttributeError,
2603
errors.TransportNotPossible, errors.NoSmartMedium,
2604
errors.SmartProtocolError):
2605
# no smart server, so not a branch for this format type.
2606
raise errors.NotBranchError(path=transport.base)
2608
# Decline to open it if the server doesn't support our required
2609
# version (3) so that the VFS-based transport will do it.
2610
if medium.should_probe():
2612
server_version = medium.protocol_version()
2613
except errors.SmartProtocolError:
2614
# Apparently there's no usable smart server there, even though
2615
# the medium supports the smart protocol.
2616
raise errors.NotBranchError(path=transport.base)
2617
if server_version != '2':
2618
raise errors.NotBranchError(path=transport.base)
2621
def initialize_on_transport(self, transport):
2623
# hand off the request to the smart server
2624
client_medium = transport.get_smart_medium()
2625
except errors.NoSmartMedium:
2626
# TODO: lookup the local format from a server hint.
2627
local_dir_format = BzrDirMetaFormat1()
2628
return local_dir_format.initialize_on_transport(transport)
2629
client = _SmartClient(client_medium)
2630
path = client.remote_path_from_transport(transport)
2631
response = client.call('BzrDirFormat.initialize', path)
2632
if response[0] != 'ok':
2633
raise errors.SmartProtocolError('unexpected response code %s' % (response,))
2634
return remote.RemoteBzrDir(transport)
2636
def _open(self, transport):
2637
return remote.RemoteBzrDir(transport)
2639
def __eq__(self, other):
2640
if not isinstance(other, RemoteBzrDirFormat):
2642
return self.get_format_description() == other.get_format_description()
2645
BzrDirFormat.register_control_server_format(RemoteBzrDirFormat)
2648
class BzrDirFormatInfo(object):
2650
def __init__(self, native, deprecated, hidden, experimental):
2651
self.deprecated = deprecated
2652
self.native = native
2653
self.hidden = hidden
2654
self.experimental = experimental
2657
class BzrDirFormatRegistry(registry.Registry):
2658
"""Registry of user-selectable BzrDir subformats.
2660
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2661
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2665
"""Create a BzrDirFormatRegistry."""
2666
self._aliases = set()
2667
super(BzrDirFormatRegistry, self).__init__()
2670
"""Return a set of the format names which are aliases."""
2671
return frozenset(self._aliases)
2673
def register_metadir(self, key,
2674
repository_format, help, native=True, deprecated=False,
2680
"""Register a metadir subformat.
2682
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2683
by the Repository format.
2685
:param repository_format: The fully-qualified repository format class
2687
:param branch_format: Fully-qualified branch format class name as
2689
:param tree_format: Fully-qualified tree format class name as
2692
# This should be expanded to support setting WorkingTree and Branch
2693
# formats, once BzrDirMetaFormat1 supports that.
2694
def _load(full_name):
2695
mod_name, factory_name = full_name.rsplit('.', 1)
2697
mod = __import__(mod_name, globals(), locals(),
2699
except ImportError, e:
2700
raise ImportError('failed to load %s: %s' % (full_name, e))
2702
factory = getattr(mod, factory_name)
2703
except AttributeError:
2704
raise AttributeError('no factory %s in module %r'
2709
bd = BzrDirMetaFormat1()
2710
if branch_format is not None:
2711
bd.set_branch_format(_load(branch_format))
2712
if tree_format is not None:
2713
bd.workingtree_format = _load(tree_format)
2714
if repository_format is not None:
2715
bd.repository_format = _load(repository_format)
2717
self.register(key, helper, help, native, deprecated, hidden,
2718
experimental, alias)
2720
def register(self, key, factory, help, native=True, deprecated=False,
2721
hidden=False, experimental=False, alias=False):
2722
"""Register a BzrDirFormat factory.
2724
The factory must be a callable that takes one parameter: the key.
2725
It must produce an instance of the BzrDirFormat when called.
2727
This function mainly exists to prevent the info object from being
2730
registry.Registry.register(self, key, factory, help,
2731
BzrDirFormatInfo(native, deprecated, hidden, experimental))
2733
self._aliases.add(key)
2735
def register_lazy(self, key, module_name, member_name, help, native=True,
2736
deprecated=False, hidden=False, experimental=False, alias=False):
2737
registry.Registry.register_lazy(self, key, module_name, member_name,
2738
help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
2740
self._aliases.add(key)
2742
def set_default(self, key):
2743
"""Set the 'default' key to be a clone of the supplied key.
2745
This method must be called once and only once.
2747
registry.Registry.register(self, 'default', self.get(key),
2748
self.get_help(key), info=self.get_info(key))
2749
self._aliases.add('default')
2751
def set_default_repository(self, key):
2752
"""Set the FormatRegistry default and Repository default.
2754
This is a transitional method while Repository.set_default_format
2757
if 'default' in self:
2758
self.remove('default')
2759
self.set_default(key)
2760
format = self.get('default')()
2762
def make_bzrdir(self, key):
2763
return self.get(key)()
2765
def help_topic(self, topic):
2766
output = textwrap.dedent("""\
2767
These formats can be used for creating branches, working trees, and
2771
default_realkey = None
2772
default_help = self.get_help('default')
2774
for key in self.keys():
2775
if key == 'default':
2777
help = self.get_help(key)
2778
if help == default_help:
2779
default_realkey = key
2781
help_pairs.append((key, help))
2783
def wrapped(key, help, info):
2785
help = '(native) ' + help
2786
return ':%s:\n%s\n\n' % (key,
2787
textwrap.fill(help, initial_indent=' ',
2788
subsequent_indent=' '))
2789
if default_realkey is not None:
2790
output += wrapped(default_realkey, '(default) %s' % default_help,
2791
self.get_info('default'))
2792
deprecated_pairs = []
2793
experimental_pairs = []
2794
for key, help in help_pairs:
2795
info = self.get_info(key)
2798
elif info.deprecated:
2799
deprecated_pairs.append((key, help))
2800
elif info.experimental:
2801
experimental_pairs.append((key, help))
2803
output += wrapped(key, help, info)
2804
if len(experimental_pairs) > 0:
2805
output += "Experimental formats are shown below.\n\n"
2806
for key, help in experimental_pairs:
2807
info = self.get_info(key)
2808
output += wrapped(key, help, info)
2809
if len(deprecated_pairs) > 0:
2810
output += "Deprecated formats are shown below.\n\n"
2811
for key, help in deprecated_pairs:
2812
info = self.get_info(key)
2813
output += wrapped(key, help, info)
2818
class RepositoryAcquisitionPolicy(object):
2819
"""Abstract base class for repository acquisition policies.
2821
A repository acquisition policy decides how a BzrDir acquires a repository
2822
for a branch that is being created. The most basic policy decision is
2823
whether to create a new repository or use an existing one.
2825
def __init__(self, stack_on, stack_on_pwd, require_stacking):
2828
:param stack_on: A location to stack on
2829
:param stack_on_pwd: If stack_on is relative, the location it is
2831
:param require_stacking: If True, it is a failure to not stack.
2833
self._stack_on = stack_on
2834
self._stack_on_pwd = stack_on_pwd
2835
self._require_stacking = require_stacking
2837
def configure_branch(self, branch):
2838
"""Apply any configuration data from this policy to the branch.
2840
Default implementation sets repository stacking.
2842
if self._stack_on is None:
2844
if self._stack_on_pwd is None:
2845
stack_on = self._stack_on
2848
stack_on = urlutils.rebase_url(self._stack_on,
2850
branch.bzrdir.root_transport.base)
2851
except errors.InvalidRebaseURLs:
2852
stack_on = self._get_full_stack_on()
2854
branch.set_stacked_on_url(stack_on)
2855
except errors.UnstackableBranchFormat:
2856
if self._require_stacking:
2859
def _get_full_stack_on(self):
2860
"""Get a fully-qualified URL for the stack_on location."""
2861
if self._stack_on is None:
2863
if self._stack_on_pwd is None:
2864
return self._stack_on
2866
return urlutils.join(self._stack_on_pwd, self._stack_on)
2868
def _add_fallback(self, repository):
2869
"""Add a fallback to the supplied repository, if stacking is set."""
2870
stack_on = self._get_full_stack_on()
2871
if stack_on is None:
2873
stacked_dir = BzrDir.open(stack_on)
2875
stacked_repo = stacked_dir.open_branch().repository
2876
except errors.NotBranchError:
2877
stacked_repo = stacked_dir.open_repository()
2879
repository.add_fallback_repository(stacked_repo)
2880
except errors.UnstackableRepositoryFormat:
2881
if self._require_stacking:
2884
def acquire_repository(self, make_working_trees=None, shared=False):
2885
"""Acquire a repository for this bzrdir.
2887
Implementations may create a new repository or use a pre-exising
2889
:param make_working_trees: If creating a repository, set
2890
make_working_trees to this value (if non-None)
2891
:param shared: If creating a repository, make it shared if True
2892
:return: A repository
2894
raise NotImplemented(RepositoryAcquisitionPolicy.acquire_repository)
2897
class CreateRepository(RepositoryAcquisitionPolicy):
2898
"""A policy of creating a new repository"""
2900
def __init__(self, bzrdir, stack_on=None, stack_on_pwd=None,
2901
require_stacking=False):
2904
:param bzrdir: The bzrdir to create the repository on.
2905
:param stack_on: A location to stack on
2906
:param stack_on_pwd: If stack_on is relative, the location it is
2909
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2911
self._bzrdir = bzrdir
2913
def acquire_repository(self, make_working_trees=None, shared=False):
2914
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2916
Creates the desired repository in the bzrdir we already have.
2918
repository = self._bzrdir.create_repository(shared=shared)
2919
self._add_fallback(repository)
2920
if make_working_trees is not None:
2921
repository.set_make_working_trees(make_working_trees)
2925
class UseExistingRepository(RepositoryAcquisitionPolicy):
2926
"""A policy of reusing an existing repository"""
2928
def __init__(self, repository, stack_on=None, stack_on_pwd=None,
2929
require_stacking=False):
2932
:param repository: The repository to use.
2933
:param stack_on: A location to stack on
2934
:param stack_on_pwd: If stack_on is relative, the location it is
2937
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2939
self._repository = repository
2941
def acquire_repository(self, make_working_trees=None, shared=False):
2942
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2944
Returns an existing repository to use
2946
self._add_fallback(self._repository)
2947
return self._repository
2950
format_registry = BzrDirFormatRegistry()
2951
format_registry.register('weave', BzrDirFormat6,
2952
'Pre-0.8 format. Slower than knit and does not'
2953
' support checkouts or shared repositories.',
2955
format_registry.register_metadir('knit',
2956
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2957
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2958
branch_format='bzrlib.branch.BzrBranchFormat5',
2959
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2960
format_registry.register_metadir('metaweave',
2961
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2962
'Transitional format in 0.8. Slower than knit.',
2963
branch_format='bzrlib.branch.BzrBranchFormat5',
2964
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2966
format_registry.register_metadir('dirstate',
2967
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2968
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2969
'above when accessed over the network.',
2970
branch_format='bzrlib.branch.BzrBranchFormat5',
2971
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2972
# directly from workingtree_4 triggers a circular import.
2973
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2975
format_registry.register_metadir('dirstate-tags',
2976
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2977
help='New in 0.15: Fast local operations and improved scaling for '
2978
'network operations. Additionally adds support for tags.'
2979
' Incompatible with bzr < 0.15.',
2980
branch_format='bzrlib.branch.BzrBranchFormat6',
2981
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2983
format_registry.register_metadir('rich-root',
2984
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
2985
help='New in 1.0. Better handling of tree roots. Incompatible with'
2987
branch_format='bzrlib.branch.BzrBranchFormat6',
2988
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2990
format_registry.register_metadir('dirstate-with-subtree',
2991
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2992
help='New in 0.15: Fast local operations and improved scaling for '
2993
'network operations. Additionally adds support for versioning nested '
2994
'bzr branches. Incompatible with bzr < 0.15.',
2995
branch_format='bzrlib.branch.BzrBranchFormat6',
2996
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3000
format_registry.register_metadir('pack-0.92',
3001
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack1',
3002
help='New in 0.92: Pack-based format with data compatible with '
3003
'dirstate-tags format repositories. Interoperates with '
3004
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3005
'Previously called knitpack-experimental. '
3006
'For more information, see '
3007
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3008
branch_format='bzrlib.branch.BzrBranchFormat6',
3009
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3011
format_registry.register_metadir('pack-0.92-subtree',
3012
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack3',
3013
help='New in 0.92: Pack-based format with data compatible with '
3014
'dirstate-with-subtree format repositories. Interoperates with '
3015
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3016
'Previously called knitpack-experimental. '
3017
'For more information, see '
3018
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3019
branch_format='bzrlib.branch.BzrBranchFormat6',
3020
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3024
format_registry.register_metadir('rich-root-pack',
3025
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack4',
3026
help='New in 1.0: Pack-based format with data compatible with '
3027
'rich-root format repositories. Incompatible with'
3029
branch_format='bzrlib.branch.BzrBranchFormat6',
3030
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3032
format_registry.register_metadir('1.6',
3033
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5',
3034
help='A branch and pack based repository that supports stacking. ',
3035
branch_format='bzrlib.branch.BzrBranchFormat7',
3036
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3038
format_registry.register_metadir('1.6.1-rich-root',
3039
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5RichRoot',
3040
help='A branch and pack based repository that supports stacking '
3041
'and rich root data (needed for bzr-svn). ',
3042
branch_format='bzrlib.branch.BzrBranchFormat7',
3043
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3045
# The following two formats should always just be aliases.
3046
format_registry.register_metadir('development',
3047
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3048
help='Current development format. Can convert data to and from pack-0.92 '
3049
'(and anything compatible with pack-0.92) format repositories. '
3050
'Repositories and branches in this format can only be read by bzr.dev. '
3052
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3054
branch_format='bzrlib.branch.BzrBranchFormat7',
3055
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3059
format_registry.register_metadir('development-subtree',
3060
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3061
help='Current development format, subtree variant. Can convert data to and '
3062
'from pack-0.92-subtree (and anything compatible with '
3063
'pack-0.92-subtree) format repositories. Repositories and branches in '
3064
'this format can only be read by bzr.dev. Please read '
3065
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3067
branch_format='bzrlib.branch.BzrBranchFormat7',
3068
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3072
# And the development formats which the will have aliased one of follow:
3073
format_registry.register_metadir('development1',
3074
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3075
help='A branch and pack based repository that supports stacking. '
3077
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3079
branch_format='bzrlib.branch.BzrBranchFormat7',
3080
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3084
format_registry.register_metadir('development1-subtree',
3085
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3086
help='A branch and pack based repository that supports stacking. '
3088
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3090
branch_format='bzrlib.branch.BzrBranchFormat7',
3091
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3095
# The current format that is made on 'bzr init'.
3096
format_registry.set_default('pack-0.92')
added
removed
bzrlib/bzrdir.py
