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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
bzrdir_format_name = '1.6.1-rich-root'
1053
repo_format = pack_repo.RepositoryFormatKnitPack5RichRoot()
1055
bzrdir_format_name = '1.6'
1056
repo_format = pack_repo.RepositoryFormatKnitPack5()
1057
note('Source format does not support stacking, using format:'
1059
bzrdir_format_name, repo_format.get_format_description())
1060
format.repository_format = repo_format
1063
def checkout_metadir(self):
1064
return self.cloning_metadir()
1066
def sprout(self, url, revision_id=None, force_new_repo=False,
1067
recurse='down', possible_transports=None,
1068
accelerator_tree=None, hardlink=False, stacked=False):
1069
"""Create a copy of this bzrdir prepared for use as a new line of
1072
If url's last component does not exist, it will be created.
1074
Attributes related to the identity of the source branch like
1075
branch nickname will be cleaned, a working tree is created
1076
whether one existed before or not; and a local branch is always
1079
if revision_id is not None, then the clone operation may tune
1080
itself to download less data.
1081
:param accelerator_tree: A tree which can be used for retrieving file
1082
contents more quickly than the revision tree, i.e. a workingtree.
1083
The revision tree will be used for cases where accelerator_tree's
1084
content is different.
1085
:param hardlink: If true, hard-link files from accelerator_tree,
1087
:param stacked: If true, create a stacked branch referring to the
1088
location of this control directory.
1090
target_transport = get_transport(url, possible_transports)
1091
target_transport.ensure_base()
1092
cloning_format = self.cloning_metadir(stacked)
1093
# Create/update the result branch
1094
result = cloning_format.initialize_on_transport(target_transport)
1096
source_branch = self.open_branch()
1097
source_repository = source_branch.repository
1099
stacked_branch_url = self.root_transport.base
1101
# if a stacked branch wasn't requested, we don't create one
1102
# even if the origin was stacked
1103
stacked_branch_url = None
1104
except errors.NotBranchError:
1105
source_branch = None
1107
source_repository = self.open_repository()
1108
except errors.NoRepositoryPresent:
1109
source_repository = None
1110
stacked_branch_url = None
1111
repository_policy = result.determine_repository_policy(
1112
force_new_repo, stacked_branch_url, require_stacking=stacked)
1113
result_repo = repository_policy.acquire_repository()
1114
if source_repository is not None:
1115
# Fetch while stacked to prevent unstacked fetch from
1117
result_repo.fetch(source_repository, revision_id=revision_id)
1119
if source_branch is None:
1120
# this is for sprouting a bzrdir without a branch; is that
1122
# Not especially, but it's part of the contract.
1123
result_branch = result.create_branch()
1125
# Force NULL revision to avoid using repository before stacking
1127
result_branch = source_branch.sprout(
1128
result, revision_id=_mod_revision.NULL_REVISION)
1129
parent_location = result_branch.get_parent()
1130
mutter("created new branch %r" % (result_branch,))
1131
repository_policy.configure_branch(result_branch)
1132
if source_branch is not None:
1133
source_branch.copy_content_into(result_branch, revision_id)
1134
# Override copy_content_into
1135
result_branch.set_parent(parent_location)
1137
# Create/update the result working tree
1138
if isinstance(target_transport, LocalTransport) and (
1139
result_repo is None or result_repo.make_working_trees()):
1140
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
1144
if wt.path2id('') is None:
1146
wt.set_root_id(self.open_workingtree.get_root_id())
1147
except errors.NoWorkingTree:
1153
if recurse == 'down':
1155
basis = wt.basis_tree()
1157
subtrees = basis.iter_references()
1158
elif source_branch is not None:
1159
basis = source_branch.basis_tree()
1161
subtrees = basis.iter_references()
1166
for path, file_id in subtrees:
1167
target = urlutils.join(url, urlutils.escape(path))
1168
sublocation = source_branch.reference_parent(file_id, path)
1169
sublocation.bzrdir.sprout(target,
1170
basis.get_reference_revision(file_id, path),
1171
force_new_repo=force_new_repo, recurse=recurse,
1174
if basis is not None:
1179
class BzrDirPreSplitOut(BzrDir):
1180
"""A common class for the all-in-one formats."""
1182
def __init__(self, _transport, _format):
1183
"""See BzrDir.__init__."""
1184
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
1185
self._control_files = lockable_files.LockableFiles(
1186
self.get_branch_transport(None),
1187
self._format._lock_file_name,
1188
self._format._lock_class)
1190
def break_lock(self):
1191
"""Pre-splitout bzrdirs do not suffer from stale locks."""
1192
raise NotImplementedError(self.break_lock)
1194
def cloning_metadir(self, require_stacking=False):
1195
"""Produce a metadir suitable for cloning with."""
1196
if require_stacking:
1197
return format_registry.make_bzrdir('1.6')
1198
return self._format.__class__()
1200
def clone(self, url, revision_id=None, force_new_repo=False,
1201
preserve_stacking=False):
1202
"""See BzrDir.clone().
1204
force_new_repo has no effect, since this family of formats always
1205
require a new repository.
1206
preserve_stacking has no effect, since no source branch using this
1207
family of formats can be stacked, so there is no stacking to preserve.
1209
self._make_tail(url)
1210
result = self._format._initialize_for_clone(url)
1211
self.open_repository().clone(result, revision_id=revision_id)
1212
from_branch = self.open_branch()
1213
from_branch.clone(result, revision_id=revision_id)
1215
tree = self.open_workingtree()
1216
except errors.NotLocalUrl:
1217
# make a new one, this format always has to have one.
1218
result._init_workingtree()
1223
def create_branch(self):
1224
"""See BzrDir.create_branch."""
1225
return self._format.get_branch_format().initialize(self)
1227
def destroy_branch(self):
1228
"""See BzrDir.destroy_branch."""
1229
raise errors.UnsupportedOperation(self.destroy_branch, self)
1231
def create_repository(self, shared=False):
1232
"""See BzrDir.create_repository."""
1234
raise errors.IncompatibleFormat('shared repository', self._format)
1235
return self.open_repository()
1237
def destroy_repository(self):
1238
"""See BzrDir.destroy_repository."""
1239
raise errors.UnsupportedOperation(self.destroy_repository, self)
1241
def create_workingtree(self, revision_id=None, from_branch=None,
1242
accelerator_tree=None, hardlink=False):
1243
"""See BzrDir.create_workingtree."""
1244
# The workingtree is sometimes created when the bzrdir is created,
1245
# but not when cloning.
1247
# this looks buggy but is not -really-
1248
# because this format creates the workingtree when the bzrdir is
1250
# clone and sprout will have set the revision_id
1251
# and that will have set it for us, its only
1252
# specific uses of create_workingtree in isolation
1253
# that can do wonky stuff here, and that only
1254
# happens for creating checkouts, which cannot be
1255
# done on this format anyway. So - acceptable wart.
1257
result = self.open_workingtree(recommend_upgrade=False)
1258
except errors.NoSuchFile:
1259
result = self._init_workingtree()
1260
if revision_id is not None:
1261
if revision_id == _mod_revision.NULL_REVISION:
1262
result.set_parent_ids([])
1264
result.set_parent_ids([revision_id])
1267
def _init_workingtree(self):
1268
from bzrlib.workingtree import WorkingTreeFormat2
1270
return WorkingTreeFormat2().initialize(self)
1271
except errors.NotLocalUrl:
1272
# Even though we can't access the working tree, we need to
1273
# create its control files.
1274
return WorkingTreeFormat2()._stub_initialize_on_transport(
1275
self.transport, self._control_files._file_mode)
1277
def destroy_workingtree(self):
1278
"""See BzrDir.destroy_workingtree."""
1279
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
1281
def destroy_workingtree_metadata(self):
1282
"""See BzrDir.destroy_workingtree_metadata."""
1283
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
1286
def get_branch_transport(self, branch_format):
1287
"""See BzrDir.get_branch_transport()."""
1288
if branch_format is None:
1289
return self.transport
1291
branch_format.get_format_string()
1292
except NotImplementedError:
1293
return self.transport
1294
raise errors.IncompatibleFormat(branch_format, self._format)
1296
def get_repository_transport(self, repository_format):
1297
"""See BzrDir.get_repository_transport()."""
1298
if repository_format is None:
1299
return self.transport
1301
repository_format.get_format_string()
1302
except NotImplementedError:
1303
return self.transport
1304
raise errors.IncompatibleFormat(repository_format, self._format)
1306
def get_workingtree_transport(self, workingtree_format):
1307
"""See BzrDir.get_workingtree_transport()."""
1308
if workingtree_format is None:
1309
return self.transport
1311
workingtree_format.get_format_string()
1312
except NotImplementedError:
1313
return self.transport
1314
raise errors.IncompatibleFormat(workingtree_format, self._format)
1316
def needs_format_conversion(self, format=None):
1317
"""See BzrDir.needs_format_conversion()."""
1318
# if the format is not the same as the system default,
1319
# an upgrade is needed.
1321
format = BzrDirFormat.get_default_format()
1322
return not isinstance(self._format, format.__class__)
1324
def open_branch(self, unsupported=False):
1325
"""See BzrDir.open_branch."""
1326
from bzrlib.branch import BzrBranchFormat4
1327
format = BzrBranchFormat4()
1328
self._check_supported(format, unsupported)
1329
return format.open(self, _found=True)
1331
def sprout(self, url, revision_id=None, force_new_repo=False,
1332
possible_transports=None, accelerator_tree=None,
1333
hardlink=False, stacked=False):
1334
"""See BzrDir.sprout()."""
1336
raise errors.UnstackableBranchFormat(
1337
self._format, self.root_transport.base)
1338
from bzrlib.workingtree import WorkingTreeFormat2
1339
self._make_tail(url)
1340
result = self._format._initialize_for_clone(url)
1342
self.open_repository().clone(result, revision_id=revision_id)
1343
except errors.NoRepositoryPresent:
1346
self.open_branch().sprout(result, revision_id=revision_id)
1347
except errors.NotBranchError:
1349
# we always want a working tree
1350
WorkingTreeFormat2().initialize(result,
1351
accelerator_tree=accelerator_tree,
1356
class BzrDir4(BzrDirPreSplitOut):
1357
"""A .bzr version 4 control object.
1359
This is a deprecated format and may be removed after sept 2006.
1362
def create_repository(self, shared=False):
1363
"""See BzrDir.create_repository."""
1364
return self._format.repository_format.initialize(self, shared)
1366
def needs_format_conversion(self, format=None):
1367
"""Format 4 dirs are always in need of conversion."""
1370
def open_repository(self):
1371
"""See BzrDir.open_repository."""
1372
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1373
return RepositoryFormat4().open(self, _found=True)
1376
class BzrDir5(BzrDirPreSplitOut):
1377
"""A .bzr version 5 control object.
1379
This is a deprecated format and may be removed after sept 2006.
1382
def open_repository(self):
1383
"""See BzrDir.open_repository."""
1384
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1385
return RepositoryFormat5().open(self, _found=True)
1387
def open_workingtree(self, _unsupported=False,
1388
recommend_upgrade=True):
1389
"""See BzrDir.create_workingtree."""
1390
from bzrlib.workingtree import WorkingTreeFormat2
1391
wt_format = WorkingTreeFormat2()
1392
# we don't warn here about upgrades; that ought to be handled for the
1394
return wt_format.open(self, _found=True)
1397
class BzrDir6(BzrDirPreSplitOut):
1398
"""A .bzr version 6 control object.
1400
This is a deprecated format and may be removed after sept 2006.
1403
def open_repository(self):
1404
"""See BzrDir.open_repository."""
1405
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1406
return RepositoryFormat6().open(self, _found=True)
1408
def open_workingtree(self, _unsupported=False,
1409
recommend_upgrade=True):
1410
"""See BzrDir.create_workingtree."""
1411
# we don't warn here about upgrades; that ought to be handled for the
1413
from bzrlib.workingtree import WorkingTreeFormat2
1414
return WorkingTreeFormat2().open(self, _found=True)
1417
class BzrDirMeta1(BzrDir):
1418
"""A .bzr meta version 1 control object.
1420
This is the first control object where the
1421
individual aspects are really split out: there are separate repository,
1422
workingtree and branch subdirectories and any subset of the three can be
1423
present within a BzrDir.
1426
def can_convert_format(self):
1427
"""See BzrDir.can_convert_format()."""
1430
def create_branch(self):
1431
"""See BzrDir.create_branch."""
1432
return self._format.get_branch_format().initialize(self)
1434
def destroy_branch(self):
1435
"""See BzrDir.create_branch."""
1436
self.transport.delete_tree('branch')
1438
def create_repository(self, shared=False):
1439
"""See BzrDir.create_repository."""
1440
return self._format.repository_format.initialize(self, shared)
1442
def destroy_repository(self):
1443
"""See BzrDir.destroy_repository."""
1444
self.transport.delete_tree('repository')
1446
def create_workingtree(self, revision_id=None, from_branch=None,
1447
accelerator_tree=None, hardlink=False):
1448
"""See BzrDir.create_workingtree."""
1449
return self._format.workingtree_format.initialize(
1450
self, revision_id, from_branch=from_branch,
1451
accelerator_tree=accelerator_tree, hardlink=hardlink)
1453
def destroy_workingtree(self):
1454
"""See BzrDir.destroy_workingtree."""
1455
wt = self.open_workingtree(recommend_upgrade=False)
1456
repository = wt.branch.repository
1457
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1458
wt.revert(old_tree=empty)
1459
self.destroy_workingtree_metadata()
1461
def destroy_workingtree_metadata(self):
1462
self.transport.delete_tree('checkout')
1464
def find_branch_format(self):
1465
"""Find the branch 'format' for this bzrdir.
1467
This might be a synthetic object for e.g. RemoteBranch and SVN.
1469
from bzrlib.branch import BranchFormat
1470
return BranchFormat.find_format(self)
1472
def _get_mkdir_mode(self):
1473
"""Figure out the mode to use when creating a bzrdir subdir."""
1474
temp_control = lockable_files.LockableFiles(self.transport, '',
1475
lockable_files.TransportLock)
1476
return temp_control._dir_mode
1478
def get_branch_reference(self):
1479
"""See BzrDir.get_branch_reference()."""
1480
from bzrlib.branch import BranchFormat
1481
format = BranchFormat.find_format(self)
1482
return format.get_reference(self)
1484
def get_branch_transport(self, branch_format):
1485
"""See BzrDir.get_branch_transport()."""
1486
if branch_format is None:
1487
return self.transport.clone('branch')
1489
branch_format.get_format_string()
1490
except NotImplementedError:
1491
raise errors.IncompatibleFormat(branch_format, self._format)
1493
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1494
except errors.FileExists:
1496
return self.transport.clone('branch')
1498
def get_repository_transport(self, repository_format):
1499
"""See BzrDir.get_repository_transport()."""
1500
if repository_format is None:
1501
return self.transport.clone('repository')
1503
repository_format.get_format_string()
1504
except NotImplementedError:
1505
raise errors.IncompatibleFormat(repository_format, self._format)
1507
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1508
except errors.FileExists:
1510
return self.transport.clone('repository')
1512
def get_workingtree_transport(self, workingtree_format):
1513
"""See BzrDir.get_workingtree_transport()."""
1514
if workingtree_format is None:
1515
return self.transport.clone('checkout')
1517
workingtree_format.get_format_string()
1518
except NotImplementedError:
1519
raise errors.IncompatibleFormat(workingtree_format, self._format)
1521
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1522
except errors.FileExists:
1524
return self.transport.clone('checkout')
1526
def needs_format_conversion(self, format=None):
1527
"""See BzrDir.needs_format_conversion()."""
1529
format = BzrDirFormat.get_default_format()
1530
if not isinstance(self._format, format.__class__):
1531
# it is not a meta dir format, conversion is needed.
1533
# we might want to push this down to the repository?
1535
if not isinstance(self.open_repository()._format,
1536
format.repository_format.__class__):
1537
# the repository needs an upgrade.
1539
except errors.NoRepositoryPresent:
1542
if not isinstance(self.open_branch()._format,
1543
format.get_branch_format().__class__):
1544
# the branch needs an upgrade.
1546
except errors.NotBranchError:
1549
my_wt = self.open_workingtree(recommend_upgrade=False)
1550
if not isinstance(my_wt._format,
1551
format.workingtree_format.__class__):
1552
# the workingtree needs an upgrade.
1554
except (errors.NoWorkingTree, errors.NotLocalUrl):
1558
def open_branch(self, unsupported=False):
1559
"""See BzrDir.open_branch."""
1560
format = self.find_branch_format()
1561
self._check_supported(format, unsupported)
1562
return format.open(self, _found=True)
1564
def open_repository(self, unsupported=False):
1565
"""See BzrDir.open_repository."""
1566
from bzrlib.repository import RepositoryFormat
1567
format = RepositoryFormat.find_format(self)
1568
self._check_supported(format, unsupported)
1569
return format.open(self, _found=True)
1571
def open_workingtree(self, unsupported=False,
1572
recommend_upgrade=True):
1573
"""See BzrDir.open_workingtree."""
1574
from bzrlib.workingtree import WorkingTreeFormat
1575
format = WorkingTreeFormat.find_format(self)
1576
self._check_supported(format, unsupported,
1578
basedir=self.root_transport.base)
1579
return format.open(self, _found=True)
1581
def _get_config(self):
1582
return config.BzrDirConfig(self.transport)
1585
class BzrDirFormat(object):
1586
"""An encapsulation of the initialization and open routines for a format.
1588
Formats provide three things:
1589
* An initialization routine,
1593
Formats are placed in a dict by their format string for reference
1594
during bzrdir opening. These should be subclasses of BzrDirFormat
1597
Once a format is deprecated, just deprecate the initialize and open
1598
methods on the format class. Do not deprecate the object, as the
1599
object will be created every system load.
1602
_default_format = None
1603
"""The default format used for new .bzr dirs."""
1606
"""The known formats."""
1608
_control_formats = []
1609
"""The registered control formats - .bzr, ....
1611
This is a list of BzrDirFormat objects.
1614
_control_server_formats = []
1615
"""The registered control server formats, e.g. RemoteBzrDirs.
1617
This is a list of BzrDirFormat objects.
1620
_lock_file_name = 'branch-lock'
1622
# _lock_class must be set in subclasses to the lock type, typ.
1623
# TransportLock or LockDir
1626
def find_format(klass, transport, _server_formats=True):
1627
"""Return the format present at transport."""
1629
formats = klass._control_server_formats + klass._control_formats
1631
formats = klass._control_formats
1632
for format in formats:
1634
return format.probe_transport(transport)
1635
except errors.NotBranchError:
1636
# this format does not find a control dir here.
1638
raise errors.NotBranchError(path=transport.base)
1641
def probe_transport(klass, transport):
1642
"""Return the .bzrdir style format present in a directory."""
1644
format_string = transport.get(".bzr/branch-format").read()
1645
except errors.NoSuchFile:
1646
raise errors.NotBranchError(path=transport.base)
1649
return klass._formats[format_string]
1651
raise errors.UnknownFormatError(format=format_string, kind='bzrdir')
1654
def get_default_format(klass):
1655
"""Return the current default format."""
1656
return klass._default_format
1658
def get_format_string(self):
1659
"""Return the ASCII format string that identifies this format."""
1660
raise NotImplementedError(self.get_format_string)
1662
def get_format_description(self):
1663
"""Return the short description for this format."""
1664
raise NotImplementedError(self.get_format_description)
1666
def get_converter(self, format=None):
1667
"""Return the converter to use to convert bzrdirs needing converts.
1669
This returns a bzrlib.bzrdir.Converter object.
1671
This should return the best upgrader to step this format towards the
1672
current default format. In the case of plugins we can/should provide
1673
some means for them to extend the range of returnable converters.
1675
:param format: Optional format to override the default format of the
1678
raise NotImplementedError(self.get_converter)
1680
def initialize(self, url, possible_transports=None):
1681
"""Create a bzr control dir at this url and return an opened copy.
1683
Subclasses should typically override initialize_on_transport
1684
instead of this method.
1686
return self.initialize_on_transport(get_transport(url,
1687
possible_transports))
1689
def initialize_on_transport(self, transport):
1690
"""Initialize a new bzrdir in the base directory of a Transport."""
1691
# Since we don't have a .bzr directory, inherit the
1692
# mode from the root directory
1693
temp_control = lockable_files.LockableFiles(transport,
1694
'', lockable_files.TransportLock)
1695
temp_control._transport.mkdir('.bzr',
1696
# FIXME: RBC 20060121 don't peek under
1698
mode=temp_control._dir_mode)
1699
if sys.platform == 'win32' and isinstance(transport, LocalTransport):
1700
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
1701
file_mode = temp_control._file_mode
1703
bzrdir_transport = transport.clone('.bzr')
1704
utf8_files = [('README',
1705
"This is a Bazaar control directory.\n"
1706
"Do not change any files in this directory.\n"
1707
"See http://bazaar-vcs.org/ for more information about Bazaar.\n"),
1708
('branch-format', self.get_format_string()),
1710
# NB: no need to escape relative paths that are url safe.
1711
control_files = lockable_files.LockableFiles(bzrdir_transport,
1712
self._lock_file_name, self._lock_class)
1713
control_files.create_lock()
1714
control_files.lock_write()
1716
for (filename, content) in utf8_files:
1717
bzrdir_transport.put_bytes(filename, content,
1720
control_files.unlock()
1721
return self.open(transport, _found=True)
1723
def is_supported(self):
1724
"""Is this format supported?
1726
Supported formats must be initializable and openable.
1727
Unsupported formats may not support initialization or committing or
1728
some other features depending on the reason for not being supported.
1732
def same_model(self, target_format):
1733
return (self.repository_format.rich_root_data ==
1734
target_format.rich_root_data)
1737
def known_formats(klass):
1738
"""Return all the known formats.
1740
Concrete formats should override _known_formats.
1742
# There is double indirection here to make sure that control
1743
# formats used by more than one dir format will only be probed
1744
# once. This can otherwise be quite expensive for remote connections.
1746
for format in klass._control_formats:
1747
result.update(format._known_formats())
1751
def _known_formats(klass):
1752
"""Return the known format instances for this control format."""
1753
return set(klass._formats.values())
1755
def open(self, transport, _found=False):
1756
"""Return an instance of this format for the dir transport points at.
1758
_found is a private parameter, do not use it.
1761
found_format = BzrDirFormat.find_format(transport)
1762
if not isinstance(found_format, self.__class__):
1763
raise AssertionError("%s was asked to open %s, but it seems to need "
1765
% (self, transport, found_format))
1766
return self._open(transport)
1768
def _open(self, transport):
1769
"""Template method helper for opening BzrDirectories.
1771
This performs the actual open and any additional logic or parameter
1774
raise NotImplementedError(self._open)
1777
def register_format(klass, format):
1778
klass._formats[format.get_format_string()] = format
1781
def register_control_format(klass, format):
1782
"""Register a format that does not use '.bzr' for its control dir.
1784
TODO: This should be pulled up into a 'ControlDirFormat' base class
1785
which BzrDirFormat can inherit from, and renamed to register_format
1786
there. It has been done without that for now for simplicity of
1789
klass._control_formats.append(format)
1792
def register_control_server_format(klass, format):
1793
"""Register a control format for client-server environments.
1795
These formats will be tried before ones registered with
1796
register_control_format. This gives implementations that decide to the
1797
chance to grab it before anything looks at the contents of the format
1800
klass._control_server_formats.append(format)
1803
def _set_default_format(klass, format):
1804
"""Set default format (for testing behavior of defaults only)"""
1805
klass._default_format = format
1809
return self.get_format_string().rstrip()
1812
def unregister_format(klass, format):
1813
del klass._formats[format.get_format_string()]
1816
def unregister_control_format(klass, format):
1817
klass._control_formats.remove(format)
1820
class BzrDirFormat4(BzrDirFormat):
1821
"""Bzr dir format 4.
1823
This format is a combined format for working tree, branch and repository.
1825
- Format 1 working trees [always]
1826
- Format 4 branches [always]
1827
- Format 4 repositories [always]
1829
This format is deprecated: it indexes texts using a text it which is
1830
removed in format 5; write support for this format has been removed.
1833
_lock_class = lockable_files.TransportLock
1835
def get_format_string(self):
1836
"""See BzrDirFormat.get_format_string()."""
1837
return "Bazaar-NG branch, format 0.0.4\n"
1839
def get_format_description(self):
1840
"""See BzrDirFormat.get_format_description()."""
1841
return "All-in-one format 4"
1843
def get_converter(self, format=None):
1844
"""See BzrDirFormat.get_converter()."""
1845
# there is one and only one upgrade path here.
1846
return ConvertBzrDir4To5()
1848
def initialize_on_transport(self, transport):
1849
"""Format 4 branches cannot be created."""
1850
raise errors.UninitializableFormat(self)
1852
def is_supported(self):
1853
"""Format 4 is not supported.
1855
It is not supported because the model changed from 4 to 5 and the
1856
conversion logic is expensive - so doing it on the fly was not
1861
def _open(self, transport):
1862
"""See BzrDirFormat._open."""
1863
return BzrDir4(transport, self)
1865
def __return_repository_format(self):
1866
"""Circular import protection."""
1867
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1868
return RepositoryFormat4()
1869
repository_format = property(__return_repository_format)
1872
class BzrDirFormat5(BzrDirFormat):
1873
"""Bzr control format 5.
1875
This format is a combined format for working tree, branch and repository.
1877
- Format 2 working trees [always]
1878
- Format 4 branches [always]
1879
- Format 5 repositories [always]
1880
Unhashed stores in the repository.
1883
_lock_class = lockable_files.TransportLock
1885
def get_format_string(self):
1886
"""See BzrDirFormat.get_format_string()."""
1887
return "Bazaar-NG branch, format 5\n"
1889
def get_branch_format(self):
1890
from bzrlib import branch
1891
return branch.BzrBranchFormat4()
1893
def get_format_description(self):
1894
"""See BzrDirFormat.get_format_description()."""
1895
return "All-in-one format 5"
1897
def get_converter(self, format=None):
1898
"""See BzrDirFormat.get_converter()."""
1899
# there is one and only one upgrade path here.
1900
return ConvertBzrDir5To6()
1902
def _initialize_for_clone(self, url):
1903
return self.initialize_on_transport(get_transport(url), _cloning=True)
1905
def initialize_on_transport(self, transport, _cloning=False):
1906
"""Format 5 dirs always have working tree, branch and repository.
1908
Except when they are being cloned.
1910
from bzrlib.branch import BzrBranchFormat4
1911
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1912
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1913
RepositoryFormat5().initialize(result, _internal=True)
1915
branch = BzrBranchFormat4().initialize(result)
1916
result._init_workingtree()
1919
def _open(self, transport):
1920
"""See BzrDirFormat._open."""
1921
return BzrDir5(transport, self)
1923
def __return_repository_format(self):
1924
"""Circular import protection."""
1925
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1926
return RepositoryFormat5()
1927
repository_format = property(__return_repository_format)
1930
class BzrDirFormat6(BzrDirFormat):
1931
"""Bzr control format 6.
1933
This format is a combined format for working tree, branch and repository.
1935
- Format 2 working trees [always]
1936
- Format 4 branches [always]
1937
- Format 6 repositories [always]
1940
_lock_class = lockable_files.TransportLock
1942
def get_format_string(self):
1943
"""See BzrDirFormat.get_format_string()."""
1944
return "Bazaar-NG branch, format 6\n"
1946
def get_format_description(self):
1947
"""See BzrDirFormat.get_format_description()."""
1948
return "All-in-one format 6"
1950
def get_branch_format(self):
1951
from bzrlib import branch
1952
return branch.BzrBranchFormat4()
1954
def get_converter(self, format=None):
1955
"""See BzrDirFormat.get_converter()."""
1956
# there is one and only one upgrade path here.
1957
return ConvertBzrDir6ToMeta()
1959
def _initialize_for_clone(self, url):
1960
return self.initialize_on_transport(get_transport(url), _cloning=True)
1962
def initialize_on_transport(self, transport, _cloning=False):
1963
"""Format 6 dirs always have working tree, branch and repository.
1965
Except when they are being cloned.
1967
from bzrlib.branch import BzrBranchFormat4
1968
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1969
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1970
RepositoryFormat6().initialize(result, _internal=True)
1972
branch = BzrBranchFormat4().initialize(result)
1973
result._init_workingtree()
1976
def _open(self, transport):
1977
"""See BzrDirFormat._open."""
1978
return BzrDir6(transport, self)
1980
def __return_repository_format(self):
1981
"""Circular import protection."""
1982
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1983
return RepositoryFormat6()
1984
repository_format = property(__return_repository_format)
1987
class BzrDirMetaFormat1(BzrDirFormat):
1988
"""Bzr meta control format 1
1990
This is the first format with split out working tree, branch and repository
1993
- Format 3 working trees [optional]
1994
- Format 5 branches [optional]
1995
- Format 7 repositories [optional]
1998
_lock_class = lockdir.LockDir
2001
self._workingtree_format = None
2002
self._branch_format = None
2004
def __eq__(self, other):
2005
if other.__class__ is not self.__class__:
2007
if other.repository_format != self.repository_format:
2009
if other.workingtree_format != self.workingtree_format:
2013
def __ne__(self, other):
2014
return not self == other
2016
def get_branch_format(self):
2017
if self._branch_format is None:
2018
from bzrlib.branch import BranchFormat
2019
self._branch_format = BranchFormat.get_default_format()
2020
return self._branch_format
2022
def set_branch_format(self, format):
2023
self._branch_format = format
2025
def get_converter(self, format=None):
2026
"""See BzrDirFormat.get_converter()."""
2028
format = BzrDirFormat.get_default_format()
2029
if not isinstance(self, format.__class__):
2030
# converting away from metadir is not implemented
2031
raise NotImplementedError(self.get_converter)
2032
return ConvertMetaToMeta(format)
2034
def get_format_string(self):
2035
"""See BzrDirFormat.get_format_string()."""
2036
return "Bazaar-NG meta directory, format 1\n"
2038
def get_format_description(self):
2039
"""See BzrDirFormat.get_format_description()."""
2040
return "Meta directory format 1"
2042
def _open(self, transport):
2043
"""See BzrDirFormat._open."""
2044
return BzrDirMeta1(transport, self)
2046
def __return_repository_format(self):
2047
"""Circular import protection."""
2048
if getattr(self, '_repository_format', None):
2049
return self._repository_format
2050
from bzrlib.repository import RepositoryFormat
2051
return RepositoryFormat.get_default_format()
2053
def __set_repository_format(self, value):
2054
"""Allow changing the repository format for metadir formats."""
2055
self._repository_format = value
2057
repository_format = property(__return_repository_format, __set_repository_format)
2059
def __get_workingtree_format(self):
2060
if self._workingtree_format is None:
2061
from bzrlib.workingtree import WorkingTreeFormat
2062
self._workingtree_format = WorkingTreeFormat.get_default_format()
2063
return self._workingtree_format
2065
def __set_workingtree_format(self, wt_format):
2066
self._workingtree_format = wt_format
2068
workingtree_format = property(__get_workingtree_format,
2069
__set_workingtree_format)
2072
# Register bzr control format
2073
BzrDirFormat.register_control_format(BzrDirFormat)
2075
# Register bzr formats
2076
BzrDirFormat.register_format(BzrDirFormat4())
2077
BzrDirFormat.register_format(BzrDirFormat5())
2078
BzrDirFormat.register_format(BzrDirFormat6())
2079
__default_format = BzrDirMetaFormat1()
2080
BzrDirFormat.register_format(__default_format)
2081
BzrDirFormat._default_format = __default_format
2084
class Converter(object):
2085
"""Converts a disk format object from one format to another."""
2087
def convert(self, to_convert, pb):
2088
"""Perform the conversion of to_convert, giving feedback via pb.
2090
:param to_convert: The disk object to convert.
2091
:param pb: a progress bar to use for progress information.
2094
def step(self, message):
2095
"""Update the pb by a step."""
2097
self.pb.update(message, self.count, self.total)
2100
class ConvertBzrDir4To5(Converter):
2101
"""Converts format 4 bzr dirs to format 5."""
2104
super(ConvertBzrDir4To5, self).__init__()
2105
self.converted_revs = set()
2106
self.absent_revisions = set()
2110
def convert(self, to_convert, pb):
2111
"""See Converter.convert()."""
2112
self.bzrdir = to_convert
2114
self.pb.note('starting upgrade from format 4 to 5')
2115
if isinstance(self.bzrdir.transport, LocalTransport):
2116
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
2117
self._convert_to_weaves()
2118
return BzrDir.open(self.bzrdir.root_transport.base)
2120
def _convert_to_weaves(self):
2121
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
2124
stat = self.bzrdir.transport.stat('weaves')
2125
if not S_ISDIR(stat.st_mode):
2126
self.bzrdir.transport.delete('weaves')
2127
self.bzrdir.transport.mkdir('weaves')
2128
except errors.NoSuchFile:
2129
self.bzrdir.transport.mkdir('weaves')
2130
# deliberately not a WeaveFile as we want to build it up slowly.
2131
self.inv_weave = Weave('inventory')
2132
# holds in-memory weaves for all files
2133
self.text_weaves = {}
2134
self.bzrdir.transport.delete('branch-format')
2135
self.branch = self.bzrdir.open_branch()
2136
self._convert_working_inv()
2137
rev_history = self.branch.revision_history()
2138
# to_read is a stack holding the revisions we still need to process;
2139
# appending to it adds new highest-priority revisions
2140
self.known_revisions = set(rev_history)
2141
self.to_read = rev_history[-1:]
2143
rev_id = self.to_read.pop()
2144
if (rev_id not in self.revisions
2145
and rev_id not in self.absent_revisions):
2146
self._load_one_rev(rev_id)
2148
to_import = self._make_order()
2149
for i, rev_id in enumerate(to_import):
2150
self.pb.update('converting revision', i, len(to_import))
2151
self._convert_one_rev(rev_id)
2153
self._write_all_weaves()
2154
self._write_all_revs()
2155
self.pb.note('upgraded to weaves:')
2156
self.pb.note(' %6d revisions and inventories', len(self.revisions))
2157
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
2158
self.pb.note(' %6d texts', self.text_count)
2159
self._cleanup_spare_files_after_format4()
2160
self.branch._transport.put_bytes(
2162
BzrDirFormat5().get_format_string(),
2163
mode=self.bzrdir._get_file_mode())
2165
def _cleanup_spare_files_after_format4(self):
2166
# FIXME working tree upgrade foo.
2167
for n in 'merged-patches', 'pending-merged-patches':
2169
## assert os.path.getsize(p) == 0
2170
self.bzrdir.transport.delete(n)
2171
except errors.NoSuchFile:
2173
self.bzrdir.transport.delete_tree('inventory-store')
2174
self.bzrdir.transport.delete_tree('text-store')
2176
def _convert_working_inv(self):
2177
inv = xml4.serializer_v4.read_inventory(
2178
self.branch._transport.get('inventory'))
2179
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv, working=True)
2180
self.branch._transport.put_bytes('inventory', new_inv_xml,
2181
mode=self.bzrdir._get_file_mode())
2183
def _write_all_weaves(self):
2184
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
2185
weave_transport = self.bzrdir.transport.clone('weaves')
2186
weaves = WeaveStore(weave_transport, prefixed=False)
2187
transaction = WriteTransaction()
2191
for file_id, file_weave in self.text_weaves.items():
2192
self.pb.update('writing weave', i, len(self.text_weaves))
2193
weaves._put_weave(file_id, file_weave, transaction)
2195
self.pb.update('inventory', 0, 1)
2196
controlweaves._put_weave('inventory', self.inv_weave, transaction)
2197
self.pb.update('inventory', 1, 1)
2201
def _write_all_revs(self):
2202
"""Write all revisions out in new form."""
2203
self.bzrdir.transport.delete_tree('revision-store')
2204
self.bzrdir.transport.mkdir('revision-store')
2205
revision_transport = self.bzrdir.transport.clone('revision-store')
2207
from bzrlib.xml5 import serializer_v5
2208
from bzrlib.repofmt.weaverepo import RevisionTextStore
2209
revision_store = RevisionTextStore(revision_transport,
2210
serializer_v5, False, versionedfile.PrefixMapper(),
2211
lambda:True, lambda:True)
2213
for i, rev_id in enumerate(self.converted_revs):
2214
self.pb.update('write revision', i, len(self.converted_revs))
2215
text = serializer_v5.write_revision_to_string(
2216
self.revisions[rev_id])
2218
revision_store.add_lines(key, None, osutils.split_lines(text))
2222
def _load_one_rev(self, rev_id):
2223
"""Load a revision object into memory.
2225
Any parents not either loaded or abandoned get queued to be
2227
self.pb.update('loading revision',
2228
len(self.revisions),
2229
len(self.known_revisions))
2230
if not self.branch.repository.has_revision(rev_id):
2232
self.pb.note('revision {%s} not present in branch; '
2233
'will be converted as a ghost',
2235
self.absent_revisions.add(rev_id)
2237
rev = self.branch.repository.get_revision(rev_id)
2238
for parent_id in rev.parent_ids:
2239
self.known_revisions.add(parent_id)
2240
self.to_read.append(parent_id)
2241
self.revisions[rev_id] = rev
2243
def _load_old_inventory(self, rev_id):
2244
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
2245
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
2246
inv.revision_id = rev_id
2247
rev = self.revisions[rev_id]
2250
def _load_updated_inventory(self, rev_id):
2251
inv_xml = self.inv_weave.get_text(rev_id)
2252
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml, rev_id)
2255
def _convert_one_rev(self, rev_id):
2256
"""Convert revision and all referenced objects to new format."""
2257
rev = self.revisions[rev_id]
2258
inv = self._load_old_inventory(rev_id)
2259
present_parents = [p for p in rev.parent_ids
2260
if p not in self.absent_revisions]
2261
self._convert_revision_contents(rev, inv, present_parents)
2262
self._store_new_inv(rev, inv, present_parents)
2263
self.converted_revs.add(rev_id)
2265
def _store_new_inv(self, rev, inv, present_parents):
2266
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
2267
new_inv_sha1 = sha_string(new_inv_xml)
2268
self.inv_weave.add_lines(rev.revision_id,
2270
new_inv_xml.splitlines(True))
2271
rev.inventory_sha1 = new_inv_sha1
2273
def _convert_revision_contents(self, rev, inv, present_parents):
2274
"""Convert all the files within a revision.
2276
Also upgrade the inventory to refer to the text revision ids."""
2277
rev_id = rev.revision_id
2278
mutter('converting texts of revision {%s}',
2280
parent_invs = map(self._load_updated_inventory, present_parents)
2281
entries = inv.iter_entries()
2283
for path, ie in entries:
2284
self._convert_file_version(rev, ie, parent_invs)
2286
def _convert_file_version(self, rev, ie, parent_invs):
2287
"""Convert one version of one file.
2289
The file needs to be added into the weave if it is a merge
2290
of >=2 parents or if it's changed from its parent.
2292
file_id = ie.file_id
2293
rev_id = rev.revision_id
2294
w = self.text_weaves.get(file_id)
2297
self.text_weaves[file_id] = w
2298
text_changed = False
2299
parent_candiate_entries = ie.parent_candidates(parent_invs)
2300
heads = graph.Graph(self).heads(parent_candiate_entries.keys())
2301
# XXX: Note that this is unordered - and this is tolerable because
2302
# the previous code was also unordered.
2303
previous_entries = dict((head, parent_candiate_entries[head]) for head
2305
self.snapshot_ie(previous_entries, ie, w, rev_id)
2308
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
2309
def get_parents(self, revision_ids):
2310
for revision_id in revision_ids:
2311
yield self.revisions[revision_id].parent_ids
2313
def get_parent_map(self, revision_ids):
2314
"""See graph._StackedParentsProvider.get_parent_map"""
2315
return dict((revision_id, self.revisions[revision_id])
2316
for revision_id in revision_ids
2317
if revision_id in self.revisions)
2319
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
2320
# TODO: convert this logic, which is ~= snapshot to
2321
# a call to:. This needs the path figured out. rather than a work_tree
2322
# a v4 revision_tree can be given, or something that looks enough like
2323
# one to give the file content to the entry if it needs it.
2324
# and we need something that looks like a weave store for snapshot to
2326
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
2327
if len(previous_revisions) == 1:
2328
previous_ie = previous_revisions.values()[0]
2329
if ie._unchanged(previous_ie):
2330
ie.revision = previous_ie.revision
2333
text = self.branch.repository._text_store.get(ie.text_id)
2334
file_lines = text.readlines()
2335
w.add_lines(rev_id, previous_revisions, file_lines)
2336
self.text_count += 1
2338
w.add_lines(rev_id, previous_revisions, [])
2339
ie.revision = rev_id
2341
def _make_order(self):
2342
"""Return a suitable order for importing revisions.
2344
The order must be such that an revision is imported after all
2345
its (present) parents.
2347
todo = set(self.revisions.keys())
2348
done = self.absent_revisions.copy()
2351
# scan through looking for a revision whose parents
2353
for rev_id in sorted(list(todo)):
2354
rev = self.revisions[rev_id]
2355
parent_ids = set(rev.parent_ids)
2356
if parent_ids.issubset(done):
2357
# can take this one now
2358
order.append(rev_id)
2364
class ConvertBzrDir5To6(Converter):
2365
"""Converts format 5 bzr dirs to format 6."""
2367
def convert(self, to_convert, pb):
2368
"""See Converter.convert()."""
2369
self.bzrdir = to_convert
2371
self.pb.note('starting upgrade from format 5 to 6')
2372
self._convert_to_prefixed()
2373
return BzrDir.open(self.bzrdir.root_transport.base)
2375
def _convert_to_prefixed(self):
2376
from bzrlib.store import TransportStore
2377
self.bzrdir.transport.delete('branch-format')
2378
for store_name in ["weaves", "revision-store"]:
2379
self.pb.note("adding prefixes to %s" % store_name)
2380
store_transport = self.bzrdir.transport.clone(store_name)
2381
store = TransportStore(store_transport, prefixed=True)
2382
for urlfilename in store_transport.list_dir('.'):
2383
filename = urlutils.unescape(urlfilename)
2384
if (filename.endswith(".weave") or
2385
filename.endswith(".gz") or
2386
filename.endswith(".sig")):
2387
file_id, suffix = os.path.splitext(filename)
2391
new_name = store._mapper.map((file_id,)) + suffix
2392
# FIXME keep track of the dirs made RBC 20060121
2394
store_transport.move(filename, new_name)
2395
except errors.NoSuchFile: # catches missing dirs strangely enough
2396
store_transport.mkdir(osutils.dirname(new_name))
2397
store_transport.move(filename, new_name)
2398
self.bzrdir.transport.put_bytes(
2400
BzrDirFormat6().get_format_string(),
2401
mode=self.bzrdir._get_file_mode())
2404
class ConvertBzrDir6ToMeta(Converter):
2405
"""Converts format 6 bzr dirs to metadirs."""
2407
def convert(self, to_convert, pb):
2408
"""See Converter.convert()."""
2409
from bzrlib.repofmt.weaverepo import RepositoryFormat7
2410
from bzrlib.branch import BzrBranchFormat5
2411
self.bzrdir = to_convert
2414
self.total = 20 # the steps we know about
2415
self.garbage_inventories = []
2416
self.dir_mode = self.bzrdir._get_dir_mode()
2417
self.file_mode = self.bzrdir._get_file_mode()
2419
self.pb.note('starting upgrade from format 6 to metadir')
2420
self.bzrdir.transport.put_bytes(
2422
"Converting to format 6",
2423
mode=self.file_mode)
2424
# its faster to move specific files around than to open and use the apis...
2425
# first off, nuke ancestry.weave, it was never used.
2427
self.step('Removing ancestry.weave')
2428
self.bzrdir.transport.delete('ancestry.weave')
2429
except errors.NoSuchFile:
2431
# find out whats there
2432
self.step('Finding branch files')
2433
last_revision = self.bzrdir.open_branch().last_revision()
2434
bzrcontents = self.bzrdir.transport.list_dir('.')
2435
for name in bzrcontents:
2436
if name.startswith('basis-inventory.'):
2437
self.garbage_inventories.append(name)
2438
# create new directories for repository, working tree and branch
2439
repository_names = [('inventory.weave', True),
2440
('revision-store', True),
2442
self.step('Upgrading repository ')
2443
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2444
self.make_lock('repository')
2445
# we hard code the formats here because we are converting into
2446
# the meta format. The meta format upgrader can take this to a
2447
# future format within each component.
2448
self.put_format('repository', RepositoryFormat7())
2449
for entry in repository_names:
2450
self.move_entry('repository', entry)
2452
self.step('Upgrading branch ')
2453
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2454
self.make_lock('branch')
2455
self.put_format('branch', BzrBranchFormat5())
2456
branch_files = [('revision-history', True),
2457
('branch-name', True),
2459
for entry in branch_files:
2460
self.move_entry('branch', entry)
2462
checkout_files = [('pending-merges', True),
2463
('inventory', True),
2464
('stat-cache', False)]
2465
# If a mandatory checkout file is not present, the branch does not have
2466
# a functional checkout. Do not create a checkout in the converted
2468
for name, mandatory in checkout_files:
2469
if mandatory and name not in bzrcontents:
2470
has_checkout = False
2474
if not has_checkout:
2475
self.pb.note('No working tree.')
2476
# If some checkout files are there, we may as well get rid of them.
2477
for name, mandatory in checkout_files:
2478
if name in bzrcontents:
2479
self.bzrdir.transport.delete(name)
2481
from bzrlib.workingtree import WorkingTreeFormat3
2482
self.step('Upgrading working tree')
2483
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2484
self.make_lock('checkout')
2486
'checkout', WorkingTreeFormat3())
2487
self.bzrdir.transport.delete_multi(
2488
self.garbage_inventories, self.pb)
2489
for entry in checkout_files:
2490
self.move_entry('checkout', entry)
2491
if last_revision is not None:
2492
self.bzrdir.transport.put_bytes(
2493
'checkout/last-revision', last_revision)
2494
self.bzrdir.transport.put_bytes(
2496
BzrDirMetaFormat1().get_format_string(),
2497
mode=self.file_mode)
2498
return BzrDir.open(self.bzrdir.root_transport.base)
2500
def make_lock(self, name):
2501
"""Make a lock for the new control dir name."""
2502
self.step('Make %s lock' % name)
2503
ld = lockdir.LockDir(self.bzrdir.transport,
2505
file_modebits=self.file_mode,
2506
dir_modebits=self.dir_mode)
2509
def move_entry(self, new_dir, entry):
2510
"""Move then entry name into new_dir."""
2512
mandatory = entry[1]
2513
self.step('Moving %s' % name)
2515
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2516
except errors.NoSuchFile:
2520
def put_format(self, dirname, format):
2521
self.bzrdir.transport.put_bytes('%s/format' % dirname,
2522
format.get_format_string(),
2526
class ConvertMetaToMeta(Converter):
2527
"""Converts the components of metadirs."""
2529
def __init__(self, target_format):
2530
"""Create a metadir to metadir converter.
2532
:param target_format: The final metadir format that is desired.
2534
self.target_format = target_format
2536
def convert(self, to_convert, pb):
2537
"""See Converter.convert()."""
2538
self.bzrdir = to_convert
2542
self.step('checking repository format')
2544
repo = self.bzrdir.open_repository()
2545
except errors.NoRepositoryPresent:
2548
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2549
from bzrlib.repository import CopyConverter
2550
self.pb.note('starting repository conversion')
2551
converter = CopyConverter(self.target_format.repository_format)
2552
converter.convert(repo, pb)
2554
branch = self.bzrdir.open_branch()
2555
except errors.NotBranchError:
2558
# TODO: conversions of Branch and Tree should be done by
2559
# InterXFormat lookups/some sort of registry.
2560
# Avoid circular imports
2561
from bzrlib import branch as _mod_branch
2562
old = branch._format.__class__
2563
new = self.target_format.get_branch_format().__class__
2565
if (old == _mod_branch.BzrBranchFormat5 and
2566
new in (_mod_branch.BzrBranchFormat6,
2567
_mod_branch.BzrBranchFormat7)):
2568
branch_converter = _mod_branch.Converter5to6()
2569
elif (old == _mod_branch.BzrBranchFormat6 and
2570
new == _mod_branch.BzrBranchFormat7):
2571
branch_converter = _mod_branch.Converter6to7()
2573
raise errors.BadConversionTarget("No converter", new)
2574
branch_converter.convert(branch)
2575
branch = self.bzrdir.open_branch()
2576
old = branch._format.__class__
2578
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2579
except (errors.NoWorkingTree, errors.NotLocalUrl):
2582
# TODO: conversions of Branch and Tree should be done by
2583
# InterXFormat lookups
2584
if (isinstance(tree, workingtree.WorkingTree3) and
2585
not isinstance(tree, workingtree_4.WorkingTree4) and
2586
isinstance(self.target_format.workingtree_format,
2587
workingtree_4.WorkingTreeFormat4)):
2588
workingtree_4.Converter3to4().convert(tree)
2592
# This is not in remote.py because it's small, and needs to be registered.
2593
# Putting it in remote.py creates a circular import problem.
2594
# we can make it a lazy object if the control formats is turned into something
2596
class RemoteBzrDirFormat(BzrDirMetaFormat1):
2597
"""Format representing bzrdirs accessed via a smart server"""
2599
def get_format_description(self):
2600
return 'bzr remote bzrdir'
2603
def probe_transport(klass, transport):
2604
"""Return a RemoteBzrDirFormat object if it looks possible."""
2606
medium = transport.get_smart_medium()
2607
except (NotImplementedError, AttributeError,
2608
errors.TransportNotPossible, errors.NoSmartMedium,
2609
errors.SmartProtocolError):
2610
# no smart server, so not a branch for this format type.
2611
raise errors.NotBranchError(path=transport.base)
2613
# Decline to open it if the server doesn't support our required
2614
# version (3) so that the VFS-based transport will do it.
2615
if medium.should_probe():
2617
server_version = medium.protocol_version()
2618
except errors.SmartProtocolError:
2619
# Apparently there's no usable smart server there, even though
2620
# the medium supports the smart protocol.
2621
raise errors.NotBranchError(path=transport.base)
2622
if server_version != '2':
2623
raise errors.NotBranchError(path=transport.base)
2626
def initialize_on_transport(self, transport):
2628
# hand off the request to the smart server
2629
client_medium = transport.get_smart_medium()
2630
except errors.NoSmartMedium:
2631
# TODO: lookup the local format from a server hint.
2632
local_dir_format = BzrDirMetaFormat1()
2633
return local_dir_format.initialize_on_transport(transport)
2634
client = _SmartClient(client_medium)
2635
path = client.remote_path_from_transport(transport)
2636
response = client.call('BzrDirFormat.initialize', path)
2637
if response[0] != 'ok':
2638
raise errors.SmartProtocolError('unexpected response code %s' % (response,))
2639
return remote.RemoteBzrDir(transport)
2641
def _open(self, transport):
2642
return remote.RemoteBzrDir(transport)
2644
def __eq__(self, other):
2645
if not isinstance(other, RemoteBzrDirFormat):
2647
return self.get_format_description() == other.get_format_description()
2650
BzrDirFormat.register_control_server_format(RemoteBzrDirFormat)
2653
class BzrDirFormatInfo(object):
2655
def __init__(self, native, deprecated, hidden, experimental):
2656
self.deprecated = deprecated
2657
self.native = native
2658
self.hidden = hidden
2659
self.experimental = experimental
2662
class BzrDirFormatRegistry(registry.Registry):
2663
"""Registry of user-selectable BzrDir subformats.
2665
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2666
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2670
"""Create a BzrDirFormatRegistry."""
2671
self._aliases = set()
2672
super(BzrDirFormatRegistry, self).__init__()
2675
"""Return a set of the format names which are aliases."""
2676
return frozenset(self._aliases)
2678
def register_metadir(self, key,
2679
repository_format, help, native=True, deprecated=False,
2685
"""Register a metadir subformat.
2687
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2688
by the Repository format.
2690
:param repository_format: The fully-qualified repository format class
2692
:param branch_format: Fully-qualified branch format class name as
2694
:param tree_format: Fully-qualified tree format class name as
2697
# This should be expanded to support setting WorkingTree and Branch
2698
# formats, once BzrDirMetaFormat1 supports that.
2699
def _load(full_name):
2700
mod_name, factory_name = full_name.rsplit('.', 1)
2702
mod = __import__(mod_name, globals(), locals(),
2704
except ImportError, e:
2705
raise ImportError('failed to load %s: %s' % (full_name, e))
2707
factory = getattr(mod, factory_name)
2708
except AttributeError:
2709
raise AttributeError('no factory %s in module %r'
2714
bd = BzrDirMetaFormat1()
2715
if branch_format is not None:
2716
bd.set_branch_format(_load(branch_format))
2717
if tree_format is not None:
2718
bd.workingtree_format = _load(tree_format)
2719
if repository_format is not None:
2720
bd.repository_format = _load(repository_format)
2722
self.register(key, helper, help, native, deprecated, hidden,
2723
experimental, alias)
2725
def register(self, key, factory, help, native=True, deprecated=False,
2726
hidden=False, experimental=False, alias=False):
2727
"""Register a BzrDirFormat factory.
2729
The factory must be a callable that takes one parameter: the key.
2730
It must produce an instance of the BzrDirFormat when called.
2732
This function mainly exists to prevent the info object from being
2735
registry.Registry.register(self, key, factory, help,
2736
BzrDirFormatInfo(native, deprecated, hidden, experimental))
2738
self._aliases.add(key)
2740
def register_lazy(self, key, module_name, member_name, help, native=True,
2741
deprecated=False, hidden=False, experimental=False, alias=False):
2742
registry.Registry.register_lazy(self, key, module_name, member_name,
2743
help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
2745
self._aliases.add(key)
2747
def set_default(self, key):
2748
"""Set the 'default' key to be a clone of the supplied key.
2750
This method must be called once and only once.
2752
registry.Registry.register(self, 'default', self.get(key),
2753
self.get_help(key), info=self.get_info(key))
2754
self._aliases.add('default')
2756
def set_default_repository(self, key):
2757
"""Set the FormatRegistry default and Repository default.
2759
This is a transitional method while Repository.set_default_format
2762
if 'default' in self:
2763
self.remove('default')
2764
self.set_default(key)
2765
format = self.get('default')()
2767
def make_bzrdir(self, key):
2768
return self.get(key)()
2770
def help_topic(self, topic):
2771
output = textwrap.dedent("""\
2772
These formats can be used for creating branches, working trees, and
2776
default_realkey = None
2777
default_help = self.get_help('default')
2779
for key in self.keys():
2780
if key == 'default':
2782
help = self.get_help(key)
2783
if help == default_help:
2784
default_realkey = key
2786
help_pairs.append((key, help))
2788
def wrapped(key, help, info):
2790
help = '(native) ' + help
2791
return ':%s:\n%s\n\n' % (key,
2792
textwrap.fill(help, initial_indent=' ',
2793
subsequent_indent=' '))
2794
if default_realkey is not None:
2795
output += wrapped(default_realkey, '(default) %s' % default_help,
2796
self.get_info('default'))
2797
deprecated_pairs = []
2798
experimental_pairs = []
2799
for key, help in help_pairs:
2800
info = self.get_info(key)
2803
elif info.deprecated:
2804
deprecated_pairs.append((key, help))
2805
elif info.experimental:
2806
experimental_pairs.append((key, help))
2808
output += wrapped(key, help, info)
2809
if len(experimental_pairs) > 0:
2810
output += "Experimental formats are shown below.\n\n"
2811
for key, help in experimental_pairs:
2812
info = self.get_info(key)
2813
output += wrapped(key, help, info)
2814
if len(deprecated_pairs) > 0:
2815
output += "Deprecated formats are shown below.\n\n"
2816
for key, help in deprecated_pairs:
2817
info = self.get_info(key)
2818
output += wrapped(key, help, info)
2823
class RepositoryAcquisitionPolicy(object):
2824
"""Abstract base class for repository acquisition policies.
2826
A repository acquisition policy decides how a BzrDir acquires a repository
2827
for a branch that is being created. The most basic policy decision is
2828
whether to create a new repository or use an existing one.
2830
def __init__(self, stack_on, stack_on_pwd, require_stacking):
2833
:param stack_on: A location to stack on
2834
:param stack_on_pwd: If stack_on is relative, the location it is
2836
:param require_stacking: If True, it is a failure to not stack.
2838
self._stack_on = stack_on
2839
self._stack_on_pwd = stack_on_pwd
2840
self._require_stacking = require_stacking
2842
def configure_branch(self, branch):
2843
"""Apply any configuration data from this policy to the branch.
2845
Default implementation sets repository stacking.
2847
if self._stack_on is None:
2849
if self._stack_on_pwd is None:
2850
stack_on = self._stack_on
2853
stack_on = urlutils.rebase_url(self._stack_on,
2855
branch.bzrdir.root_transport.base)
2856
except errors.InvalidRebaseURLs:
2857
stack_on = self._get_full_stack_on()
2859
branch.set_stacked_on_url(stack_on)
2860
except errors.UnstackableBranchFormat:
2861
if self._require_stacking:
2864
def _get_full_stack_on(self):
2865
"""Get a fully-qualified URL for the stack_on location."""
2866
if self._stack_on is None:
2868
if self._stack_on_pwd is None:
2869
return self._stack_on
2871
return urlutils.join(self._stack_on_pwd, self._stack_on)
2873
def _add_fallback(self, repository):
2874
"""Add a fallback to the supplied repository, if stacking is set."""
2875
stack_on = self._get_full_stack_on()
2876
if stack_on is None:
2878
stacked_dir = BzrDir.open(stack_on)
2880
stacked_repo = stacked_dir.open_branch().repository
2881
except errors.NotBranchError:
2882
stacked_repo = stacked_dir.open_repository()
2884
repository.add_fallback_repository(stacked_repo)
2885
except errors.UnstackableRepositoryFormat:
2886
if self._require_stacking:
2889
def acquire_repository(self, make_working_trees=None, shared=False):
2890
"""Acquire a repository for this bzrdir.
2892
Implementations may create a new repository or use a pre-exising
2894
:param make_working_trees: If creating a repository, set
2895
make_working_trees to this value (if non-None)
2896
:param shared: If creating a repository, make it shared if True
2897
:return: A repository
2899
raise NotImplemented(RepositoryAcquisitionPolicy.acquire_repository)
2902
class CreateRepository(RepositoryAcquisitionPolicy):
2903
"""A policy of creating a new repository"""
2905
def __init__(self, bzrdir, stack_on=None, stack_on_pwd=None,
2906
require_stacking=False):
2909
:param bzrdir: The bzrdir to create the repository on.
2910
:param stack_on: A location to stack on
2911
:param stack_on_pwd: If stack_on is relative, the location it is
2914
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2916
self._bzrdir = bzrdir
2918
def acquire_repository(self, make_working_trees=None, shared=False):
2919
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2921
Creates the desired repository in the bzrdir we already have.
2923
repository = self._bzrdir.create_repository(shared=shared)
2924
self._add_fallback(repository)
2925
if make_working_trees is not None:
2926
repository.set_make_working_trees(make_working_trees)
2930
class UseExistingRepository(RepositoryAcquisitionPolicy):
2931
"""A policy of reusing an existing repository"""
2933
def __init__(self, repository, stack_on=None, stack_on_pwd=None,
2934
require_stacking=False):
2937
:param repository: The repository to use.
2938
:param stack_on: A location to stack on
2939
:param stack_on_pwd: If stack_on is relative, the location it is
2942
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2944
self._repository = repository
2946
def acquire_repository(self, make_working_trees=None, shared=False):
2947
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2949
Returns an existing repository to use
2951
self._add_fallback(self._repository)
2952
return self._repository
2955
format_registry = BzrDirFormatRegistry()
2956
format_registry.register('weave', BzrDirFormat6,
2957
'Pre-0.8 format. Slower than knit and does not'
2958
' support checkouts or shared repositories.',
2960
format_registry.register_metadir('knit',
2961
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2962
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2963
branch_format='bzrlib.branch.BzrBranchFormat5',
2964
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2965
format_registry.register_metadir('metaweave',
2966
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2967
'Transitional format in 0.8. Slower than knit.',
2968
branch_format='bzrlib.branch.BzrBranchFormat5',
2969
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2971
format_registry.register_metadir('dirstate',
2972
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2973
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2974
'above when accessed over the network.',
2975
branch_format='bzrlib.branch.BzrBranchFormat5',
2976
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2977
# directly from workingtree_4 triggers a circular import.
2978
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2980
format_registry.register_metadir('dirstate-tags',
2981
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2982
help='New in 0.15: Fast local operations and improved scaling for '
2983
'network operations. Additionally adds support for tags.'
2984
' Incompatible with bzr < 0.15.',
2985
branch_format='bzrlib.branch.BzrBranchFormat6',
2986
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2988
format_registry.register_metadir('rich-root',
2989
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
2990
help='New in 1.0. Better handling of tree roots. Incompatible with'
2992
branch_format='bzrlib.branch.BzrBranchFormat6',
2993
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2995
format_registry.register_metadir('dirstate-with-subtree',
2996
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2997
help='New in 0.15: Fast local operations and improved scaling for '
2998
'network operations. Additionally adds support for versioning nested '
2999
'bzr branches. Incompatible with bzr < 0.15.',
3000
branch_format='bzrlib.branch.BzrBranchFormat6',
3001
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3005
format_registry.register_metadir('pack-0.92',
3006
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack1',
3007
help='New in 0.92: Pack-based format with data compatible with '
3008
'dirstate-tags format repositories. Interoperates with '
3009
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3010
'Previously called knitpack-experimental. '
3011
'For more information, see '
3012
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3013
branch_format='bzrlib.branch.BzrBranchFormat6',
3014
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3016
format_registry.register_metadir('pack-0.92-subtree',
3017
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack3',
3018
help='New in 0.92: Pack-based format with data compatible with '
3019
'dirstate-with-subtree format repositories. Interoperates with '
3020
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3021
'Previously called knitpack-experimental. '
3022
'For more information, see '
3023
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3024
branch_format='bzrlib.branch.BzrBranchFormat6',
3025
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3029
format_registry.register_metadir('rich-root-pack',
3030
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack4',
3031
help='New in 1.0: Pack-based format with data compatible with '
3032
'rich-root format repositories. Incompatible with'
3034
branch_format='bzrlib.branch.BzrBranchFormat6',
3035
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3037
format_registry.register_metadir('1.6',
3038
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5',
3039
help='A branch and pack based repository that supports stacking. ',
3040
branch_format='bzrlib.branch.BzrBranchFormat7',
3041
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3043
format_registry.register_metadir('1.6.1-rich-root',
3044
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5RichRoot',
3045
help='A branch and pack based repository that supports stacking '
3046
'and rich root data (needed for bzr-svn). ',
3047
branch_format='bzrlib.branch.BzrBranchFormat7',
3048
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3050
# The following two formats should always just be aliases.
3051
format_registry.register_metadir('development',
3052
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3053
help='Current development format. Can convert data to and from pack-0.92 '
3054
'(and anything compatible with pack-0.92) format repositories. '
3055
'Repositories and branches in this format can only be read by bzr.dev. '
3057
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3059
branch_format='bzrlib.branch.BzrBranchFormat7',
3060
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3064
format_registry.register_metadir('development-subtree',
3065
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3066
help='Current development format, subtree variant. Can convert data to and '
3067
'from pack-0.92-subtree (and anything compatible with '
3068
'pack-0.92-subtree) format repositories. Repositories and branches in '
3069
'this format can only be read by bzr.dev. Please read '
3070
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3072
branch_format='bzrlib.branch.BzrBranchFormat7',
3073
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3077
# And the development formats which the will have aliased one of follow:
3078
format_registry.register_metadir('development1',
3079
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3080
help='A branch and pack based repository that supports stacking. '
3082
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3084
branch_format='bzrlib.branch.BzrBranchFormat7',
3085
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3089
format_registry.register_metadir('development1-subtree',
3090
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3091
help='A branch and pack based repository that supports stacking. '
3093
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3095
branch_format='bzrlib.branch.BzrBranchFormat7',
3096
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3100
# The current format that is made on 'bzr init'.
3101
format_registry.set_default('pack-0.92')
added
removed
bzrlib/bzrdir.py
