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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 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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revision as _mod_revision,
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from bzrlib.osutils import (
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from bzrlib.smart.client import _SmartClient
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from bzrlib.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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"""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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"""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, local.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, local.LocalTransport):
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raise errors.NotLocalUrl(base)
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bzrdir = BzrDir.create_branch_and_repo(base,
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format=format).bzrdir
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return bzrdir.create_workingtree()
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def create_workingtree(self, revision_id=None, from_branch=None,
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accelerator_tree=None, hardlink=False):
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"""Create a working tree at this BzrDir.
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:param revision_id: create it as of this revision id.
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:param from_branch: override bzrdir branch (for lightweight checkouts)
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:param accelerator_tree: A tree which can be used for retrieving file
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contents more quickly than the revision tree, i.e. a workingtree.
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The revision tree will be used for cases where accelerator_tree's
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content is different.
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raise NotImplementedError(self.create_workingtree)
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def retire_bzrdir(self, limit=10000):
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"""Permanently disable the bzrdir.
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This is done by renaming it to give the user some ability to recover
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if there was a problem.
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This will have horrible consequences if anyone has anything locked or
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:param limit: number of times to retry
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to_path = '.bzr.retired.%d' % i
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self.root_transport.rename('.bzr', to_path)
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note("renamed %s to %s"
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% (self.root_transport.abspath('.bzr'), to_path))
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except (errors.TransportError, IOError, errors.PathError):
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def destroy_workingtree(self):
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"""Destroy the working tree at this BzrDir.
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Formats that do not support this may raise UnsupportedOperation.
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raise NotImplementedError(self.destroy_workingtree)
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def destroy_workingtree_metadata(self):
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"""Destroy the control files for the working tree at this BzrDir.
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The contents of working tree files are not affected.
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Formats that do not support this may raise UnsupportedOperation.
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raise NotImplementedError(self.destroy_workingtree_metadata)
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def _find_containing(self, evaluate):
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"""Find something in a containing control directory.
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This method will scan containing control dirs, until it finds what
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it is looking for, decides that it will never find it, or runs out
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of containing control directories to check.
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It is used to implement find_repository and
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determine_repository_policy.
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:param evaluate: A function returning (value, stop). If stop is True,
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the value will be returned.
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result, stop = evaluate(found_bzrdir)
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next_transport = found_bzrdir.root_transport.clone('..')
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if (found_bzrdir.root_transport.base == next_transport.base):
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# top of the file system
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# find the next containing bzrdir
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found_bzrdir = BzrDir.open_containing_from_transport(
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except errors.NotBranchError:
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def find_repository(self):
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"""Find the repository that should be used.
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This does not require a branch as we use it to find the repo for
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new branches as well as to hook existing branches up to their
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def usable_repository(found_bzrdir):
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# does it have a repository ?
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repository = found_bzrdir.open_repository()
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except errors.NoRepositoryPresent:
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if found_bzrdir.root_transport.base == self.root_transport.base:
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return repository, True
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elif repository.is_shared():
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return repository, True
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found_repo = self._find_containing(usable_repository)
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if found_repo is None:
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raise errors.NoRepositoryPresent(self)
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def get_branch_reference(self):
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"""Return the referenced URL for the branch in this bzrdir.
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:raises NotBranchError: If there is no Branch.
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:return: The URL the branch in this bzrdir references if it is a
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reference branch, or None for regular branches.
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def get_branch_transport(self, branch_format):
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"""Get the transport for use by branch format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the branch format they are given has
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a format string, and vice versa.
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If branch_format is None, the transport is returned with no
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checking. If it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_branch_transport)
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def _find_creation_modes(self):
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"""Determine the appropriate modes for files and directories.
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They're always set to be consistent with the base directory,
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assuming that this transport allows setting modes.
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# TODO: Do we need or want an option (maybe a config setting) to turn
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# this off or override it for particular locations? -- mbp 20080512
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if self._mode_check_done:
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self._mode_check_done = True
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st = self.transport.stat('.')
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except errors.TransportNotPossible:
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self._dir_mode = None
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self._file_mode = None
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# Check the directory mode, but also make sure the created
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# directories and files are read-write for this user. This is
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# mostly a workaround for filesystems which lie about being able to
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# write to a directory (cygwin & win32)
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if (st.st_mode & 07777 == 00000):
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# FTP allows stat but does not return dir/file modes
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self._dir_mode = None
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self._file_mode = None
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self._dir_mode = (st.st_mode & 07777) | 00700
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# Remove the sticky and execute bits for files
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self._file_mode = self._dir_mode & ~07111
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def _get_file_mode(self):
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"""Return Unix mode for newly created files, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._file_mode
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def _get_dir_mode(self):
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"""Return Unix mode for newly created directories, or None.
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if not self._mode_check_done:
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self._find_creation_modes()
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return self._dir_mode
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def get_repository_transport(self, repository_format):
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"""Get the transport for use by repository format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the repository format they are given has
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a format string, and vice versa.
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If repository_format is None, the transport is returned with no
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checking. If it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_repository_transport)
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def get_workingtree_transport(self, tree_format):
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"""Get the transport for use by workingtree format in this BzrDir.
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Note that bzr dirs that do not support format strings will raise
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IncompatibleFormat if the workingtree format they are given has a
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format string, and vice versa.
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If workingtree_format is None, the transport is returned with no
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checking. If it is not None, then the returned transport is
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guaranteed to point to an existing directory ready for use.
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raise NotImplementedError(self.get_workingtree_transport)
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def get_config(self):
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if getattr(self, '_get_config', None) is None:
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return self._get_config()
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def __init__(self, _transport, _format):
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"""Initialize a Bzr control dir object.
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Only really common logic should reside here, concrete classes should be
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made with varying behaviours.
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:param _format: the format that is creating this BzrDir instance.
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:param _transport: the transport this dir is based at.
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self._format = _format
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self.transport = _transport.clone('.bzr')
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self.root_transport = _transport
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self._mode_check_done = False
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def is_control_filename(self, filename):
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"""True if filename is the name of a path which is reserved for bzrdir's.
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:param filename: A filename within the root transport of this bzrdir.
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This is true IF and ONLY IF the filename is part of the namespace reserved
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for bzr control dirs. Currently this is the '.bzr' directory in the root
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of the root_transport. it is expected that plugins will need to extend
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this in the future - for instance to make bzr talk with svn working
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# this might be better on the BzrDirFormat class because it refers to
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# all the possible bzrdir disk formats.
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# This method is tested via the workingtree is_control_filename tests-
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# it was extracted from WorkingTree.is_control_filename. If the method's
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# contract is extended beyond the current trivial implementation, please
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# add new tests for it to the appropriate place.
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return filename == '.bzr' or filename.startswith('.bzr/')
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def needs_format_conversion(self, format=None):
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"""Return true if this bzrdir needs convert_format run on it.
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For instance, if the repository format is out of date but the
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branch and working tree are not, this should return True.
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:param format: Optional parameter indicating a specific desired
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format we plan to arrive at.
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raise NotImplementedError(self.needs_format_conversion)
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def open_unsupported(base):
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"""Open a branch which is not supported."""
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return BzrDir.open(base, _unsupported=True)
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def open(base, _unsupported=False, possible_transports=None):
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"""Open an existing bzrdir, rooted at 'base' (url).
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:param _unsupported: a private parameter to the BzrDir class.
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t = get_transport(base, possible_transports=possible_transports)
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return BzrDir.open_from_transport(t, _unsupported=_unsupported)
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def open_from_transport(transport, _unsupported=False,
770
_server_formats=True):
771
"""Open a bzrdir within a particular directory.
773
:param transport: Transport containing the bzrdir.
774
:param _unsupported: private.
776
base = transport.base
778
def find_format(transport):
779
return transport, BzrDirFormat.find_format(
780
transport, _server_formats=_server_formats)
782
def redirected(transport, e, redirection_notice):
783
qualified_source = e.get_source_url()
784
relpath = transport.relpath(qualified_source)
785
if not e.target.endswith(relpath):
786
# Not redirected to a branch-format, not a branch
787
raise errors.NotBranchError(path=e.target)
788
target = e.target[:-len(relpath)]
789
note('%s is%s redirected to %s',
790
transport.base, e.permanently, target)
791
# Let's try with a new transport
792
# FIXME: If 'transport' has a qualifier, this should
793
# be applied again to the new transport *iff* the
794
# schemes used are the same. Uncomment this code
795
# once the function (and tests) exist.
797
#target = urlutils.copy_url_qualifiers(original, target)
798
return get_transport(target)
801
transport, format = do_catching_redirections(find_format,
804
except errors.TooManyRedirections:
805
raise errors.NotBranchError(base)
807
BzrDir._check_supported(format, _unsupported)
808
return format.open(transport, _found=True)
810
def open_branch(self, unsupported=False):
811
"""Open the branch object at this BzrDir if one is present.
813
If unsupported is True, then no longer supported branch formats can
816
TODO: static convenience version of this?
818
raise NotImplementedError(self.open_branch)
821
def open_containing(url, possible_transports=None):
822
"""Open an existing branch which contains url.
824
:param url: url to search from.
825
See open_containing_from_transport for more detail.
827
transport = get_transport(url, possible_transports)
828
return BzrDir.open_containing_from_transport(transport)
831
def open_containing_from_transport(a_transport):
832
"""Open an existing branch which contains a_transport.base.
834
This probes for a branch at a_transport, and searches upwards from there.
836
Basically we keep looking up until we find the control directory or
837
run into the root. If there isn't one, raises NotBranchError.
838
If there is one and it is either an unrecognised format or an unsupported
839
format, UnknownFormatError or UnsupportedFormatError are raised.
840
If there is one, it is returned, along with the unused portion of url.
842
:return: The BzrDir that contains the path, and a Unicode path
843
for the rest of the URL.
845
# this gets the normalised url back. I.e. '.' -> the full path.
846
url = a_transport.base
849
result = BzrDir.open_from_transport(a_transport)
850
return result, urlutils.unescape(a_transport.relpath(url))
851
except errors.NotBranchError, e:
854
new_t = a_transport.clone('..')
855
except errors.InvalidURLJoin:
856
# reached the root, whatever that may be
857
raise errors.NotBranchError(path=url)
858
if new_t.base == a_transport.base:
859
# reached the root, whatever that may be
860
raise errors.NotBranchError(path=url)
863
def _get_tree_branch(self):
864
"""Return the branch and tree, if any, for this bzrdir.
866
Return None for tree if not present or inaccessible.
867
Raise NotBranchError if no branch is present.
868
:return: (tree, branch)
871
tree = self.open_workingtree()
872
except (errors.NoWorkingTree, errors.NotLocalUrl):
874
branch = self.open_branch()
880
def open_tree_or_branch(klass, location):
881
"""Return the branch and working tree at a location.
883
If there is no tree at the location, tree will be None.
884
If there is no branch at the location, an exception will be
886
:return: (tree, branch)
888
bzrdir = klass.open(location)
889
return bzrdir._get_tree_branch()
892
def open_containing_tree_or_branch(klass, location):
893
"""Return the branch and working tree contained by a location.
895
Returns (tree, branch, relpath).
896
If there is no tree at containing the location, tree will be None.
897
If there is no branch containing the location, an exception will be
899
relpath is the portion of the path that is contained by the branch.
901
bzrdir, relpath = klass.open_containing(location)
902
tree, branch = bzrdir._get_tree_branch()
903
return tree, branch, relpath
906
def open_containing_tree_branch_or_repository(klass, location):
907
"""Return the working tree, branch and repo contained by a location.
909
Returns (tree, branch, repository, relpath).
910
If there is no tree containing the location, tree will be None.
911
If there is no branch containing the location, branch will be None.
912
If there is no repository containing the location, repository will be
914
relpath is the portion of the path that is contained by the innermost
917
If no tree, branch or repository is found, a NotBranchError is raised.
919
bzrdir, relpath = klass.open_containing(location)
921
tree, branch = bzrdir._get_tree_branch()
922
except errors.NotBranchError:
924
repo = bzrdir.find_repository()
925
return None, None, repo, relpath
926
except (errors.NoRepositoryPresent):
927
raise errors.NotBranchError(location)
928
return tree, branch, branch.repository, relpath
930
def open_repository(self, _unsupported=False):
931
"""Open the repository object at this BzrDir if one is present.
933
This will not follow the Branch object pointer - it's strictly a direct
934
open facility. Most client code should use open_branch().repository to
937
:param _unsupported: a private parameter, not part of the api.
938
TODO: static convenience version of this?
940
raise NotImplementedError(self.open_repository)
942
def open_workingtree(self, _unsupported=False,
943
recommend_upgrade=True, from_branch=None):
944
"""Open the workingtree object at this BzrDir if one is present.
946
:param recommend_upgrade: Optional keyword parameter, when True (the
947
default), emit through the ui module a recommendation that the user
948
upgrade the working tree when the workingtree being opened is old
949
(but still fully supported).
950
:param from_branch: override bzrdir branch (for lightweight checkouts)
952
raise NotImplementedError(self.open_workingtree)
954
def has_branch(self):
955
"""Tell if this bzrdir contains a branch.
957
Note: if you're going to open the branch, you should just go ahead
958
and try, and not ask permission first. (This method just opens the
959
branch and discards it, and that's somewhat expensive.)
964
except errors.NotBranchError:
967
def has_workingtree(self):
968
"""Tell if this bzrdir contains a working tree.
970
This will still raise an exception if the bzrdir has a workingtree that
971
is remote & inaccessible.
973
Note: if you're going to open the working tree, you should just go ahead
974
and try, and not ask permission first. (This method just opens the
975
workingtree and discards it, and that's somewhat expensive.)
978
self.open_workingtree(recommend_upgrade=False)
980
except errors.NoWorkingTree:
983
def _cloning_metadir(self):
984
"""Produce a metadir suitable for cloning with.
986
:returns: (destination_bzrdir_format, source_repository)
988
result_format = self._format.__class__()
991
branch = self.open_branch()
992
source_repository = branch.repository
993
result_format._branch_format = branch._format
994
except errors.NotBranchError:
996
source_repository = self.open_repository()
997
except errors.NoRepositoryPresent:
998
source_repository = None
1000
# XXX TODO: This isinstance is here because we have not implemented
1001
# the fix recommended in bug # 103195 - to delegate this choice the
1002
# repository itself.
1003
repo_format = source_repository._format
1004
if not isinstance(repo_format, remote.RemoteRepositoryFormat):
1005
result_format.repository_format = repo_format
1007
# TODO: Couldn't we just probe for the format in these cases,
1008
# rather than opening the whole tree? It would be a little
1009
# faster. mbp 20070401
1010
tree = self.open_workingtree(recommend_upgrade=False)
1011
except (errors.NoWorkingTree, errors.NotLocalUrl):
1012
result_format.workingtree_format = None
1014
result_format.workingtree_format = tree._format.__class__()
1015
return result_format, source_repository
1017
def cloning_metadir(self, require_stacking=False):
1018
"""Produce a metadir suitable for cloning or sprouting with.
1020
These operations may produce workingtrees (yes, even though they're
1021
"cloning" something that doesn't have a tree), so a viable workingtree
1022
format must be selected.
1024
:require_stacking: If True, non-stackable formats will be upgraded
1025
to similar stackable formats.
1026
:returns: a BzrDirFormat with all component formats either set
1027
appropriately or set to None if that component should not be
1030
format, repository = self._cloning_metadir()
1031
if format._workingtree_format is None:
1032
if repository is None:
1034
tree_format = repository._format._matchingbzrdir.workingtree_format
1035
format.workingtree_format = tree_format.__class__()
1036
if (require_stacking and not
1037
format.get_branch_format().supports_stacking()):
1038
# We need to make a stacked branch, but the default format for the
1039
# target doesn't support stacking. So force a branch that *can*
1041
from bzrlib.branch import BzrBranchFormat7
1042
format._branch_format = BzrBranchFormat7()
1043
mutter("using %r for stacking" % (format._branch_format,))
1044
from bzrlib.repofmt import pack_repo
1045
if format.repository_format.rich_root_data:
1046
bzrdir_format_name = '1.6.1-rich-root'
1047
repo_format = pack_repo.RepositoryFormatKnitPack5RichRoot()
1049
bzrdir_format_name = '1.6'
1050
repo_format = pack_repo.RepositoryFormatKnitPack5()
1051
note('Source format does not support stacking, using format:'
1053
bzrdir_format_name, repo_format.get_format_description())
1054
format.repository_format = repo_format
1057
def checkout_metadir(self):
1058
return self.cloning_metadir()
1060
def sprout(self, url, revision_id=None, force_new_repo=False,
1061
recurse='down', possible_transports=None,
1062
accelerator_tree=None, hardlink=False, stacked=False):
1063
"""Create a copy of this bzrdir prepared for use as a new line of
1066
If url's last component does not exist, it will be created.
1068
Attributes related to the identity of the source branch like
1069
branch nickname will be cleaned, a working tree is created
1070
whether one existed before or not; and a local branch is always
1073
if revision_id is not None, then the clone operation may tune
1074
itself to download less data.
1075
:param accelerator_tree: A tree which can be used for retrieving file
1076
contents more quickly than the revision tree, i.e. a workingtree.
1077
The revision tree will be used for cases where accelerator_tree's
1078
content is different.
1079
:param hardlink: If true, hard-link files from accelerator_tree,
1081
:param stacked: If true, create a stacked branch referring to the
1082
location of this control directory.
1084
target_transport = get_transport(url, possible_transports)
1085
target_transport.ensure_base()
1086
cloning_format = self.cloning_metadir(stacked)
1087
# Create/update the result branch
1088
result = cloning_format.initialize_on_transport(target_transport)
1090
source_branch = self.open_branch()
1091
source_repository = source_branch.repository
1093
stacked_branch_url = self.root_transport.base
1095
# if a stacked branch wasn't requested, we don't create one
1096
# even if the origin was stacked
1097
stacked_branch_url = None
1098
except errors.NotBranchError:
1099
source_branch = None
1101
source_repository = self.open_repository()
1102
except errors.NoRepositoryPresent:
1103
source_repository = None
1104
stacked_branch_url = None
1105
repository_policy = result.determine_repository_policy(
1106
force_new_repo, stacked_branch_url, require_stacking=stacked)
1107
result_repo = repository_policy.acquire_repository()
1108
if source_repository is not None:
1109
# Fetch while stacked to prevent unstacked fetch from
1111
result_repo.fetch(source_repository, revision_id=revision_id)
1113
if source_branch is None:
1114
# this is for sprouting a bzrdir without a branch; is that
1116
# Not especially, but it's part of the contract.
1117
result_branch = result.create_branch()
1119
# Force NULL revision to avoid using repository before stacking
1121
result_branch = source_branch.sprout(
1122
result, revision_id=_mod_revision.NULL_REVISION)
1123
parent_location = result_branch.get_parent()
1124
mutter("created new branch %r" % (result_branch,))
1125
repository_policy.configure_branch(result_branch)
1126
if source_branch is not None:
1127
source_branch.copy_content_into(result_branch, revision_id)
1128
# Override copy_content_into
1129
result_branch.set_parent(parent_location)
1131
# Create/update the result working tree
1132
if isinstance(target_transport, local.LocalTransport) and (
1133
result_repo is None or result_repo.make_working_trees()):
1134
wt = result.create_workingtree(accelerator_tree=accelerator_tree,
1138
if wt.path2id('') is None:
1140
wt.set_root_id(self.open_workingtree.get_root_id())
1141
except errors.NoWorkingTree:
1147
if recurse == 'down':
1149
basis = wt.basis_tree()
1151
subtrees = basis.iter_references()
1152
elif source_branch is not None:
1153
basis = source_branch.basis_tree()
1155
subtrees = basis.iter_references()
1160
for path, file_id in subtrees:
1161
target = urlutils.join(url, urlutils.escape(path))
1162
sublocation = source_branch.reference_parent(file_id, path)
1163
sublocation.bzrdir.sprout(target,
1164
basis.get_reference_revision(file_id, path),
1165
force_new_repo=force_new_repo, recurse=recurse,
1168
if basis is not None:
1173
class BzrDirPreSplitOut(BzrDir):
1174
"""A common class for the all-in-one formats."""
1176
def __init__(self, _transport, _format):
1177
"""See BzrDir.__init__."""
1178
super(BzrDirPreSplitOut, self).__init__(_transport, _format)
1179
self._control_files = lockable_files.LockableFiles(
1180
self.get_branch_transport(None),
1181
self._format._lock_file_name,
1182
self._format._lock_class)
1184
def break_lock(self):
1185
"""Pre-splitout bzrdirs do not suffer from stale locks."""
1186
raise NotImplementedError(self.break_lock)
1188
def cloning_metadir(self, require_stacking=False):
1189
"""Produce a metadir suitable for cloning with."""
1190
if require_stacking:
1191
return format_registry.make_bzrdir('1.6')
1192
return self._format.__class__()
1194
def clone(self, url, revision_id=None, force_new_repo=False,
1195
preserve_stacking=False):
1196
"""See BzrDir.clone().
1198
force_new_repo has no effect, since this family of formats always
1199
require a new repository.
1200
preserve_stacking has no effect, since no source branch using this
1201
family of formats can be stacked, so there is no stacking to preserve.
1203
self._make_tail(url)
1204
result = self._format._initialize_for_clone(url)
1205
self.open_repository().clone(result, revision_id=revision_id)
1206
from_branch = self.open_branch()
1207
from_branch.clone(result, revision_id=revision_id)
1209
tree = self.open_workingtree()
1210
except errors.NotLocalUrl:
1211
# make a new one, this format always has to have one.
1212
result._init_workingtree()
1217
def create_branch(self):
1218
"""See BzrDir.create_branch."""
1219
return self._format.get_branch_format().initialize(self)
1221
def destroy_branch(self):
1222
"""See BzrDir.destroy_branch."""
1223
raise errors.UnsupportedOperation(self.destroy_branch, self)
1225
def create_repository(self, shared=False):
1226
"""See BzrDir.create_repository."""
1228
raise errors.IncompatibleFormat('shared repository', self._format)
1229
return self.open_repository()
1231
def destroy_repository(self):
1232
"""See BzrDir.destroy_repository."""
1233
raise errors.UnsupportedOperation(self.destroy_repository, self)
1235
def create_workingtree(self, revision_id=None, from_branch=None,
1236
accelerator_tree=None, hardlink=False):
1237
"""See BzrDir.create_workingtree."""
1238
# The workingtree is sometimes created when the bzrdir is created,
1239
# but not when cloning.
1241
# this looks buggy but is not -really-
1242
# because this format creates the workingtree when the bzrdir is
1244
# clone and sprout will have set the revision_id
1245
# and that will have set it for us, its only
1246
# specific uses of create_workingtree in isolation
1247
# that can do wonky stuff here, and that only
1248
# happens for creating checkouts, which cannot be
1249
# done on this format anyway. So - acceptable wart.
1251
result = self.open_workingtree(recommend_upgrade=False)
1252
except errors.NoSuchFile:
1253
result = self._init_workingtree()
1254
if revision_id is not None:
1255
if revision_id == _mod_revision.NULL_REVISION:
1256
result.set_parent_ids([])
1258
result.set_parent_ids([revision_id])
1261
def _init_workingtree(self):
1262
from bzrlib.workingtree import WorkingTreeFormat2
1264
return WorkingTreeFormat2().initialize(self)
1265
except errors.NotLocalUrl:
1266
# Even though we can't access the working tree, we need to
1267
# create its control files.
1268
return WorkingTreeFormat2()._stub_initialize_on_transport(
1269
self.transport, self._control_files._file_mode)
1271
def destroy_workingtree(self):
1272
"""See BzrDir.destroy_workingtree."""
1273
raise errors.UnsupportedOperation(self.destroy_workingtree, self)
1275
def destroy_workingtree_metadata(self):
1276
"""See BzrDir.destroy_workingtree_metadata."""
1277
raise errors.UnsupportedOperation(self.destroy_workingtree_metadata,
1280
def get_branch_transport(self, branch_format):
1281
"""See BzrDir.get_branch_transport()."""
1282
if branch_format is None:
1283
return self.transport
1285
branch_format.get_format_string()
1286
except NotImplementedError:
1287
return self.transport
1288
raise errors.IncompatibleFormat(branch_format, self._format)
1290
def get_repository_transport(self, repository_format):
1291
"""See BzrDir.get_repository_transport()."""
1292
if repository_format is None:
1293
return self.transport
1295
repository_format.get_format_string()
1296
except NotImplementedError:
1297
return self.transport
1298
raise errors.IncompatibleFormat(repository_format, self._format)
1300
def get_workingtree_transport(self, workingtree_format):
1301
"""See BzrDir.get_workingtree_transport()."""
1302
if workingtree_format is None:
1303
return self.transport
1305
workingtree_format.get_format_string()
1306
except NotImplementedError:
1307
return self.transport
1308
raise errors.IncompatibleFormat(workingtree_format, self._format)
1310
def needs_format_conversion(self, format=None):
1311
"""See BzrDir.needs_format_conversion()."""
1312
# if the format is not the same as the system default,
1313
# an upgrade is needed.
1315
format = BzrDirFormat.get_default_format()
1316
return not isinstance(self._format, format.__class__)
1318
def open_branch(self, unsupported=False):
1319
"""See BzrDir.open_branch."""
1320
from bzrlib.branch import BzrBranchFormat4
1321
format = BzrBranchFormat4()
1322
self._check_supported(format, unsupported)
1323
return format.open(self, _found=True)
1325
def sprout(self, url, revision_id=None, force_new_repo=False,
1326
possible_transports=None, accelerator_tree=None,
1327
hardlink=False, stacked=False):
1328
"""See BzrDir.sprout()."""
1330
raise errors.UnstackableBranchFormat(
1331
self._format, self.root_transport.base)
1332
from bzrlib.workingtree import WorkingTreeFormat2
1333
self._make_tail(url)
1334
result = self._format._initialize_for_clone(url)
1336
self.open_repository().clone(result, revision_id=revision_id)
1337
except errors.NoRepositoryPresent:
1340
self.open_branch().sprout(result, revision_id=revision_id)
1341
except errors.NotBranchError:
1343
# we always want a working tree
1344
WorkingTreeFormat2().initialize(result,
1345
accelerator_tree=accelerator_tree,
1350
class BzrDir4(BzrDirPreSplitOut):
1351
"""A .bzr version 4 control object.
1353
This is a deprecated format and may be removed after sept 2006.
1356
def create_repository(self, shared=False):
1357
"""See BzrDir.create_repository."""
1358
return self._format.repository_format.initialize(self, shared)
1360
def needs_format_conversion(self, format=None):
1361
"""Format 4 dirs are always in need of conversion."""
1364
def open_repository(self):
1365
"""See BzrDir.open_repository."""
1366
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1367
return RepositoryFormat4().open(self, _found=True)
1370
class BzrDir5(BzrDirPreSplitOut):
1371
"""A .bzr version 5 control object.
1373
This is a deprecated format and may be removed after sept 2006.
1376
def open_repository(self):
1377
"""See BzrDir.open_repository."""
1378
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1379
return RepositoryFormat5().open(self, _found=True)
1381
def open_workingtree(self, _unsupported=False,
1382
recommend_upgrade=True):
1383
"""See BzrDir.create_workingtree."""
1384
from bzrlib.workingtree import WorkingTreeFormat2
1385
wt_format = WorkingTreeFormat2()
1386
# we don't warn here about upgrades; that ought to be handled for the
1388
return wt_format.open(self, _found=True)
1391
class BzrDir6(BzrDirPreSplitOut):
1392
"""A .bzr version 6 control object.
1394
This is a deprecated format and may be removed after sept 2006.
1397
def open_repository(self):
1398
"""See BzrDir.open_repository."""
1399
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1400
return RepositoryFormat6().open(self, _found=True)
1402
def open_workingtree(self, _unsupported=False,
1403
recommend_upgrade=True):
1404
"""See BzrDir.create_workingtree."""
1405
# we don't warn here about upgrades; that ought to be handled for the
1407
from bzrlib.workingtree import WorkingTreeFormat2
1408
return WorkingTreeFormat2().open(self, _found=True)
1411
class BzrDirMeta1(BzrDir):
1412
"""A .bzr meta version 1 control object.
1414
This is the first control object where the
1415
individual aspects are really split out: there are separate repository,
1416
workingtree and branch subdirectories and any subset of the three can be
1417
present within a BzrDir.
1420
def can_convert_format(self):
1421
"""See BzrDir.can_convert_format()."""
1424
def create_branch(self):
1425
"""See BzrDir.create_branch."""
1426
return self._format.get_branch_format().initialize(self)
1428
def destroy_branch(self):
1429
"""See BzrDir.create_branch."""
1430
self.transport.delete_tree('branch')
1432
def create_repository(self, shared=False):
1433
"""See BzrDir.create_repository."""
1434
return self._format.repository_format.initialize(self, shared)
1436
def destroy_repository(self):
1437
"""See BzrDir.destroy_repository."""
1438
self.transport.delete_tree('repository')
1440
def create_workingtree(self, revision_id=None, from_branch=None,
1441
accelerator_tree=None, hardlink=False):
1442
"""See BzrDir.create_workingtree."""
1443
return self._format.workingtree_format.initialize(
1444
self, revision_id, from_branch=from_branch,
1445
accelerator_tree=accelerator_tree, hardlink=hardlink)
1447
def destroy_workingtree(self):
1448
"""See BzrDir.destroy_workingtree."""
1449
wt = self.open_workingtree(recommend_upgrade=False)
1450
repository = wt.branch.repository
1451
empty = repository.revision_tree(_mod_revision.NULL_REVISION)
1452
wt.revert(old_tree=empty)
1453
self.destroy_workingtree_metadata()
1455
def destroy_workingtree_metadata(self):
1456
self.transport.delete_tree('checkout')
1458
def find_branch_format(self):
1459
"""Find the branch 'format' for this bzrdir.
1461
This might be a synthetic object for e.g. RemoteBranch and SVN.
1463
from bzrlib.branch import BranchFormat
1464
return BranchFormat.find_format(self)
1466
def _get_mkdir_mode(self):
1467
"""Figure out the mode to use when creating a bzrdir subdir."""
1468
temp_control = lockable_files.LockableFiles(self.transport, '',
1469
lockable_files.TransportLock)
1470
return temp_control._dir_mode
1472
def get_branch_reference(self):
1473
"""See BzrDir.get_branch_reference()."""
1474
from bzrlib.branch import BranchFormat
1475
format = BranchFormat.find_format(self)
1476
return format.get_reference(self)
1478
def get_branch_transport(self, branch_format):
1479
"""See BzrDir.get_branch_transport()."""
1480
if branch_format is None:
1481
return self.transport.clone('branch')
1483
branch_format.get_format_string()
1484
except NotImplementedError:
1485
raise errors.IncompatibleFormat(branch_format, self._format)
1487
self.transport.mkdir('branch', mode=self._get_mkdir_mode())
1488
except errors.FileExists:
1490
return self.transport.clone('branch')
1492
def get_repository_transport(self, repository_format):
1493
"""See BzrDir.get_repository_transport()."""
1494
if repository_format is None:
1495
return self.transport.clone('repository')
1497
repository_format.get_format_string()
1498
except NotImplementedError:
1499
raise errors.IncompatibleFormat(repository_format, self._format)
1501
self.transport.mkdir('repository', mode=self._get_mkdir_mode())
1502
except errors.FileExists:
1504
return self.transport.clone('repository')
1506
def get_workingtree_transport(self, workingtree_format):
1507
"""See BzrDir.get_workingtree_transport()."""
1508
if workingtree_format is None:
1509
return self.transport.clone('checkout')
1511
workingtree_format.get_format_string()
1512
except NotImplementedError:
1513
raise errors.IncompatibleFormat(workingtree_format, self._format)
1515
self.transport.mkdir('checkout', mode=self._get_mkdir_mode())
1516
except errors.FileExists:
1518
return self.transport.clone('checkout')
1520
def needs_format_conversion(self, format=None):
1521
"""See BzrDir.needs_format_conversion()."""
1523
format = BzrDirFormat.get_default_format()
1524
if not isinstance(self._format, format.__class__):
1525
# it is not a meta dir format, conversion is needed.
1527
# we might want to push this down to the repository?
1529
if not isinstance(self.open_repository()._format,
1530
format.repository_format.__class__):
1531
# the repository needs an upgrade.
1533
except errors.NoRepositoryPresent:
1536
if not isinstance(self.open_branch()._format,
1537
format.get_branch_format().__class__):
1538
# the branch needs an upgrade.
1540
except errors.NotBranchError:
1543
my_wt = self.open_workingtree(recommend_upgrade=False)
1544
if not isinstance(my_wt._format,
1545
format.workingtree_format.__class__):
1546
# the workingtree needs an upgrade.
1548
except (errors.NoWorkingTree, errors.NotLocalUrl):
1552
def open_branch(self, unsupported=False):
1553
"""See BzrDir.open_branch."""
1554
format = self.find_branch_format()
1555
self._check_supported(format, unsupported)
1556
return format.open(self, _found=True)
1558
def open_repository(self, unsupported=False):
1559
"""See BzrDir.open_repository."""
1560
from bzrlib.repository import RepositoryFormat
1561
format = RepositoryFormat.find_format(self)
1562
self._check_supported(format, unsupported)
1563
return format.open(self, _found=True)
1565
def open_workingtree(self, unsupported=False,
1566
recommend_upgrade=True):
1567
"""See BzrDir.open_workingtree."""
1568
from bzrlib.workingtree import WorkingTreeFormat
1569
format = WorkingTreeFormat.find_format(self)
1570
self._check_supported(format, unsupported,
1572
basedir=self.root_transport.base)
1573
return format.open(self, _found=True)
1575
def _get_config(self):
1576
return config.BzrDirConfig(self.transport)
1579
class BzrDirFormat(object):
1580
"""An encapsulation of the initialization and open routines for a format.
1582
Formats provide three things:
1583
* An initialization routine,
1587
Formats are placed in a dict by their format string for reference
1588
during bzrdir opening. These should be subclasses of BzrDirFormat
1591
Once a format is deprecated, just deprecate the initialize and open
1592
methods on the format class. Do not deprecate the object, as the
1593
object will be created every system load.
1596
_default_format = None
1597
"""The default format used for new .bzr dirs."""
1600
"""The known formats."""
1602
_control_formats = []
1603
"""The registered control formats - .bzr, ....
1605
This is a list of BzrDirFormat objects.
1608
_control_server_formats = []
1609
"""The registered control server formats, e.g. RemoteBzrDirs.
1611
This is a list of BzrDirFormat objects.
1614
_lock_file_name = 'branch-lock'
1616
# _lock_class must be set in subclasses to the lock type, typ.
1617
# TransportLock or LockDir
1620
def find_format(klass, transport, _server_formats=True):
1621
"""Return the format present at transport."""
1623
formats = klass._control_server_formats + klass._control_formats
1625
formats = klass._control_formats
1626
for format in formats:
1628
return format.probe_transport(transport)
1629
except errors.NotBranchError:
1630
# this format does not find a control dir here.
1632
raise errors.NotBranchError(path=transport.base)
1635
def probe_transport(klass, transport):
1636
"""Return the .bzrdir style format present in a directory."""
1638
format_string = transport.get(".bzr/branch-format").read()
1639
except errors.NoSuchFile:
1640
raise errors.NotBranchError(path=transport.base)
1643
return klass._formats[format_string]
1645
raise errors.UnknownFormatError(format=format_string, kind='bzrdir')
1648
def get_default_format(klass):
1649
"""Return the current default format."""
1650
return klass._default_format
1652
def get_format_string(self):
1653
"""Return the ASCII format string that identifies this format."""
1654
raise NotImplementedError(self.get_format_string)
1656
def get_format_description(self):
1657
"""Return the short description for this format."""
1658
raise NotImplementedError(self.get_format_description)
1660
def get_converter(self, format=None):
1661
"""Return the converter to use to convert bzrdirs needing converts.
1663
This returns a bzrlib.bzrdir.Converter object.
1665
This should return the best upgrader to step this format towards the
1666
current default format. In the case of plugins we can/should provide
1667
some means for them to extend the range of returnable converters.
1669
:param format: Optional format to override the default format of the
1672
raise NotImplementedError(self.get_converter)
1674
def initialize(self, url, possible_transports=None):
1675
"""Create a bzr control dir at this url and return an opened copy.
1677
Subclasses should typically override initialize_on_transport
1678
instead of this method.
1680
return self.initialize_on_transport(get_transport(url,
1681
possible_transports))
1683
def initialize_on_transport(self, transport):
1684
"""Initialize a new bzrdir in the base directory of a Transport."""
1685
# Since we don't have a .bzr directory, inherit the
1686
# mode from the root directory
1687
temp_control = lockable_files.LockableFiles(transport,
1688
'', lockable_files.TransportLock)
1689
temp_control._transport.mkdir('.bzr',
1690
# FIXME: RBC 20060121 don't peek under
1692
mode=temp_control._dir_mode)
1693
if sys.platform == 'win32' and isinstance(transport, local.LocalTransport):
1694
win32utils.set_file_attr_hidden(transport._abspath('.bzr'))
1695
file_mode = temp_control._file_mode
1697
bzrdir_transport = transport.clone('.bzr')
1698
utf8_files = [('README',
1699
"This is a Bazaar control directory.\n"
1700
"Do not change any files in this directory.\n"
1701
"See http://bazaar-vcs.org/ for more information about Bazaar.\n"),
1702
('branch-format', self.get_format_string()),
1704
# NB: no need to escape relative paths that are url safe.
1705
control_files = lockable_files.LockableFiles(bzrdir_transport,
1706
self._lock_file_name, self._lock_class)
1707
control_files.create_lock()
1708
control_files.lock_write()
1710
for (filename, content) in utf8_files:
1711
bzrdir_transport.put_bytes(filename, content,
1714
control_files.unlock()
1715
return self.open(transport, _found=True)
1717
def is_supported(self):
1718
"""Is this format supported?
1720
Supported formats must be initializable and openable.
1721
Unsupported formats may not support initialization or committing or
1722
some other features depending on the reason for not being supported.
1726
def same_model(self, target_format):
1727
return (self.repository_format.rich_root_data ==
1728
target_format.rich_root_data)
1731
def known_formats(klass):
1732
"""Return all the known formats.
1734
Concrete formats should override _known_formats.
1736
# There is double indirection here to make sure that control
1737
# formats used by more than one dir format will only be probed
1738
# once. This can otherwise be quite expensive for remote connections.
1740
for format in klass._control_formats:
1741
result.update(format._known_formats())
1745
def _known_formats(klass):
1746
"""Return the known format instances for this control format."""
1747
return set(klass._formats.values())
1749
def open(self, transport, _found=False):
1750
"""Return an instance of this format for the dir transport points at.
1752
_found is a private parameter, do not use it.
1755
found_format = BzrDirFormat.find_format(transport)
1756
if not isinstance(found_format, self.__class__):
1757
raise AssertionError("%s was asked to open %s, but it seems to need "
1759
% (self, transport, found_format))
1760
return self._open(transport)
1762
def _open(self, transport):
1763
"""Template method helper for opening BzrDirectories.
1765
This performs the actual open and any additional logic or parameter
1768
raise NotImplementedError(self._open)
1771
def register_format(klass, format):
1772
klass._formats[format.get_format_string()] = format
1775
def register_control_format(klass, format):
1776
"""Register a format that does not use '.bzr' for its control dir.
1778
TODO: This should be pulled up into a 'ControlDirFormat' base class
1779
which BzrDirFormat can inherit from, and renamed to register_format
1780
there. It has been done without that for now for simplicity of
1783
klass._control_formats.append(format)
1786
def register_control_server_format(klass, format):
1787
"""Register a control format for client-server environments.
1789
These formats will be tried before ones registered with
1790
register_control_format. This gives implementations that decide to the
1791
chance to grab it before anything looks at the contents of the format
1794
klass._control_server_formats.append(format)
1797
def _set_default_format(klass, format):
1798
"""Set default format (for testing behavior of defaults only)"""
1799
klass._default_format = format
1803
return self.get_format_string().rstrip()
1806
def unregister_format(klass, format):
1807
del klass._formats[format.get_format_string()]
1810
def unregister_control_format(klass, format):
1811
klass._control_formats.remove(format)
1814
class BzrDirFormat4(BzrDirFormat):
1815
"""Bzr dir format 4.
1817
This format is a combined format for working tree, branch and repository.
1819
- Format 1 working trees [always]
1820
- Format 4 branches [always]
1821
- Format 4 repositories [always]
1823
This format is deprecated: it indexes texts using a text it which is
1824
removed in format 5; write support for this format has been removed.
1827
_lock_class = lockable_files.TransportLock
1829
def get_format_string(self):
1830
"""See BzrDirFormat.get_format_string()."""
1831
return "Bazaar-NG branch, format 0.0.4\n"
1833
def get_format_description(self):
1834
"""See BzrDirFormat.get_format_description()."""
1835
return "All-in-one format 4"
1837
def get_converter(self, format=None):
1838
"""See BzrDirFormat.get_converter()."""
1839
# there is one and only one upgrade path here.
1840
return ConvertBzrDir4To5()
1842
def initialize_on_transport(self, transport):
1843
"""Format 4 branches cannot be created."""
1844
raise errors.UninitializableFormat(self)
1846
def is_supported(self):
1847
"""Format 4 is not supported.
1849
It is not supported because the model changed from 4 to 5 and the
1850
conversion logic is expensive - so doing it on the fly was not
1855
def _open(self, transport):
1856
"""See BzrDirFormat._open."""
1857
return BzrDir4(transport, self)
1859
def __return_repository_format(self):
1860
"""Circular import protection."""
1861
from bzrlib.repofmt.weaverepo import RepositoryFormat4
1862
return RepositoryFormat4()
1863
repository_format = property(__return_repository_format)
1866
class BzrDirFormat5(BzrDirFormat):
1867
"""Bzr control format 5.
1869
This format is a combined format for working tree, branch and repository.
1871
- Format 2 working trees [always]
1872
- Format 4 branches [always]
1873
- Format 5 repositories [always]
1874
Unhashed stores in the repository.
1877
_lock_class = lockable_files.TransportLock
1879
def get_format_string(self):
1880
"""See BzrDirFormat.get_format_string()."""
1881
return "Bazaar-NG branch, format 5\n"
1883
def get_branch_format(self):
1884
from bzrlib import branch
1885
return branch.BzrBranchFormat4()
1887
def get_format_description(self):
1888
"""See BzrDirFormat.get_format_description()."""
1889
return "All-in-one format 5"
1891
def get_converter(self, format=None):
1892
"""See BzrDirFormat.get_converter()."""
1893
# there is one and only one upgrade path here.
1894
return ConvertBzrDir5To6()
1896
def _initialize_for_clone(self, url):
1897
return self.initialize_on_transport(get_transport(url), _cloning=True)
1899
def initialize_on_transport(self, transport, _cloning=False):
1900
"""Format 5 dirs always have working tree, branch and repository.
1902
Except when they are being cloned.
1904
from bzrlib.branch import BzrBranchFormat4
1905
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1906
result = (super(BzrDirFormat5, self).initialize_on_transport(transport))
1907
RepositoryFormat5().initialize(result, _internal=True)
1909
branch = BzrBranchFormat4().initialize(result)
1910
result._init_workingtree()
1913
def _open(self, transport):
1914
"""See BzrDirFormat._open."""
1915
return BzrDir5(transport, self)
1917
def __return_repository_format(self):
1918
"""Circular import protection."""
1919
from bzrlib.repofmt.weaverepo import RepositoryFormat5
1920
return RepositoryFormat5()
1921
repository_format = property(__return_repository_format)
1924
class BzrDirFormat6(BzrDirFormat):
1925
"""Bzr control format 6.
1927
This format is a combined format for working tree, branch and repository.
1929
- Format 2 working trees [always]
1930
- Format 4 branches [always]
1931
- Format 6 repositories [always]
1934
_lock_class = lockable_files.TransportLock
1936
def get_format_string(self):
1937
"""See BzrDirFormat.get_format_string()."""
1938
return "Bazaar-NG branch, format 6\n"
1940
def get_format_description(self):
1941
"""See BzrDirFormat.get_format_description()."""
1942
return "All-in-one format 6"
1944
def get_branch_format(self):
1945
from bzrlib import branch
1946
return branch.BzrBranchFormat4()
1948
def get_converter(self, format=None):
1949
"""See BzrDirFormat.get_converter()."""
1950
# there is one and only one upgrade path here.
1951
return ConvertBzrDir6ToMeta()
1953
def _initialize_for_clone(self, url):
1954
return self.initialize_on_transport(get_transport(url), _cloning=True)
1956
def initialize_on_transport(self, transport, _cloning=False):
1957
"""Format 6 dirs always have working tree, branch and repository.
1959
Except when they are being cloned.
1961
from bzrlib.branch import BzrBranchFormat4
1962
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1963
result = super(BzrDirFormat6, self).initialize_on_transport(transport)
1964
RepositoryFormat6().initialize(result, _internal=True)
1966
branch = BzrBranchFormat4().initialize(result)
1967
result._init_workingtree()
1970
def _open(self, transport):
1971
"""See BzrDirFormat._open."""
1972
return BzrDir6(transport, self)
1974
def __return_repository_format(self):
1975
"""Circular import protection."""
1976
from bzrlib.repofmt.weaverepo import RepositoryFormat6
1977
return RepositoryFormat6()
1978
repository_format = property(__return_repository_format)
1981
class BzrDirMetaFormat1(BzrDirFormat):
1982
"""Bzr meta control format 1
1984
This is the first format with split out working tree, branch and repository
1987
- Format 3 working trees [optional]
1988
- Format 5 branches [optional]
1989
- Format 7 repositories [optional]
1992
_lock_class = lockdir.LockDir
1995
self._workingtree_format = None
1996
self._branch_format = None
1998
def __eq__(self, other):
1999
if other.__class__ is not self.__class__:
2001
if other.repository_format != self.repository_format:
2003
if other.workingtree_format != self.workingtree_format:
2007
def __ne__(self, other):
2008
return not self == other
2010
def get_branch_format(self):
2011
if self._branch_format is None:
2012
from bzrlib.branch import BranchFormat
2013
self._branch_format = BranchFormat.get_default_format()
2014
return self._branch_format
2016
def set_branch_format(self, format):
2017
self._branch_format = format
2019
def get_converter(self, format=None):
2020
"""See BzrDirFormat.get_converter()."""
2022
format = BzrDirFormat.get_default_format()
2023
if not isinstance(self, format.__class__):
2024
# converting away from metadir is not implemented
2025
raise NotImplementedError(self.get_converter)
2026
return ConvertMetaToMeta(format)
2028
def get_format_string(self):
2029
"""See BzrDirFormat.get_format_string()."""
2030
return "Bazaar-NG meta directory, format 1\n"
2032
def get_format_description(self):
2033
"""See BzrDirFormat.get_format_description()."""
2034
return "Meta directory format 1"
2036
def _open(self, transport):
2037
"""See BzrDirFormat._open."""
2038
return BzrDirMeta1(transport, self)
2040
def __return_repository_format(self):
2041
"""Circular import protection."""
2042
if getattr(self, '_repository_format', None):
2043
return self._repository_format
2044
from bzrlib.repository import RepositoryFormat
2045
return RepositoryFormat.get_default_format()
2047
def __set_repository_format(self, value):
2048
"""Allow changing the repository format for metadir formats."""
2049
self._repository_format = value
2051
repository_format = property(__return_repository_format, __set_repository_format)
2053
def __get_workingtree_format(self):
2054
if self._workingtree_format is None:
2055
from bzrlib.workingtree import WorkingTreeFormat
2056
self._workingtree_format = WorkingTreeFormat.get_default_format()
2057
return self._workingtree_format
2059
def __set_workingtree_format(self, wt_format):
2060
self._workingtree_format = wt_format
2062
workingtree_format = property(__get_workingtree_format,
2063
__set_workingtree_format)
2066
# Register bzr control format
2067
BzrDirFormat.register_control_format(BzrDirFormat)
2069
# Register bzr formats
2070
BzrDirFormat.register_format(BzrDirFormat4())
2071
BzrDirFormat.register_format(BzrDirFormat5())
2072
BzrDirFormat.register_format(BzrDirFormat6())
2073
__default_format = BzrDirMetaFormat1()
2074
BzrDirFormat.register_format(__default_format)
2075
BzrDirFormat._default_format = __default_format
2078
class Converter(object):
2079
"""Converts a disk format object from one format to another."""
2081
def convert(self, to_convert, pb):
2082
"""Perform the conversion of to_convert, giving feedback via pb.
2084
:param to_convert: The disk object to convert.
2085
:param pb: a progress bar to use for progress information.
2088
def step(self, message):
2089
"""Update the pb by a step."""
2091
self.pb.update(message, self.count, self.total)
2094
class ConvertBzrDir4To5(Converter):
2095
"""Converts format 4 bzr dirs to format 5."""
2098
super(ConvertBzrDir4To5, self).__init__()
2099
self.converted_revs = set()
2100
self.absent_revisions = set()
2104
def convert(self, to_convert, pb):
2105
"""See Converter.convert()."""
2106
self.bzrdir = to_convert
2108
self.pb.note('starting upgrade from format 4 to 5')
2109
if isinstance(self.bzrdir.transport, local.LocalTransport):
2110
self.bzrdir.get_workingtree_transport(None).delete('stat-cache')
2111
self._convert_to_weaves()
2112
return BzrDir.open(self.bzrdir.root_transport.base)
2114
def _convert_to_weaves(self):
2115
self.pb.note('note: upgrade may be faster if all store files are ungzipped first')
2118
stat = self.bzrdir.transport.stat('weaves')
2119
if not S_ISDIR(stat.st_mode):
2120
self.bzrdir.transport.delete('weaves')
2121
self.bzrdir.transport.mkdir('weaves')
2122
except errors.NoSuchFile:
2123
self.bzrdir.transport.mkdir('weaves')
2124
# deliberately not a WeaveFile as we want to build it up slowly.
2125
self.inv_weave = Weave('inventory')
2126
# holds in-memory weaves for all files
2127
self.text_weaves = {}
2128
self.bzrdir.transport.delete('branch-format')
2129
self.branch = self.bzrdir.open_branch()
2130
self._convert_working_inv()
2131
rev_history = self.branch.revision_history()
2132
# to_read is a stack holding the revisions we still need to process;
2133
# appending to it adds new highest-priority revisions
2134
self.known_revisions = set(rev_history)
2135
self.to_read = rev_history[-1:]
2137
rev_id = self.to_read.pop()
2138
if (rev_id not in self.revisions
2139
and rev_id not in self.absent_revisions):
2140
self._load_one_rev(rev_id)
2142
to_import = self._make_order()
2143
for i, rev_id in enumerate(to_import):
2144
self.pb.update('converting revision', i, len(to_import))
2145
self._convert_one_rev(rev_id)
2147
self._write_all_weaves()
2148
self._write_all_revs()
2149
self.pb.note('upgraded to weaves:')
2150
self.pb.note(' %6d revisions and inventories', len(self.revisions))
2151
self.pb.note(' %6d revisions not present', len(self.absent_revisions))
2152
self.pb.note(' %6d texts', self.text_count)
2153
self._cleanup_spare_files_after_format4()
2154
self.branch._transport.put_bytes(
2156
BzrDirFormat5().get_format_string(),
2157
mode=self.bzrdir._get_file_mode())
2159
def _cleanup_spare_files_after_format4(self):
2160
# FIXME working tree upgrade foo.
2161
for n in 'merged-patches', 'pending-merged-patches':
2163
## assert os.path.getsize(p) == 0
2164
self.bzrdir.transport.delete(n)
2165
except errors.NoSuchFile:
2167
self.bzrdir.transport.delete_tree('inventory-store')
2168
self.bzrdir.transport.delete_tree('text-store')
2170
def _convert_working_inv(self):
2171
inv = xml4.serializer_v4.read_inventory(
2172
self.branch._transport.get('inventory'))
2173
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv, working=True)
2174
self.branch._transport.put_bytes('inventory', new_inv_xml,
2175
mode=self.bzrdir._get_file_mode())
2177
def _write_all_weaves(self):
2178
controlweaves = WeaveStore(self.bzrdir.transport, prefixed=False)
2179
weave_transport = self.bzrdir.transport.clone('weaves')
2180
weaves = WeaveStore(weave_transport, prefixed=False)
2181
transaction = WriteTransaction()
2185
for file_id, file_weave in self.text_weaves.items():
2186
self.pb.update('writing weave', i, len(self.text_weaves))
2187
weaves._put_weave(file_id, file_weave, transaction)
2189
self.pb.update('inventory', 0, 1)
2190
controlweaves._put_weave('inventory', self.inv_weave, transaction)
2191
self.pb.update('inventory', 1, 1)
2195
def _write_all_revs(self):
2196
"""Write all revisions out in new form."""
2197
self.bzrdir.transport.delete_tree('revision-store')
2198
self.bzrdir.transport.mkdir('revision-store')
2199
revision_transport = self.bzrdir.transport.clone('revision-store')
2201
from bzrlib.xml5 import serializer_v5
2202
from bzrlib.repofmt.weaverepo import RevisionTextStore
2203
revision_store = RevisionTextStore(revision_transport,
2204
serializer_v5, False, versionedfile.PrefixMapper(),
2205
lambda:True, lambda:True)
2207
for i, rev_id in enumerate(self.converted_revs):
2208
self.pb.update('write revision', i, len(self.converted_revs))
2209
text = serializer_v5.write_revision_to_string(
2210
self.revisions[rev_id])
2212
revision_store.add_lines(key, None, osutils.split_lines(text))
2216
def _load_one_rev(self, rev_id):
2217
"""Load a revision object into memory.
2219
Any parents not either loaded or abandoned get queued to be
2221
self.pb.update('loading revision',
2222
len(self.revisions),
2223
len(self.known_revisions))
2224
if not self.branch.repository.has_revision(rev_id):
2226
self.pb.note('revision {%s} not present in branch; '
2227
'will be converted as a ghost',
2229
self.absent_revisions.add(rev_id)
2231
rev = self.branch.repository.get_revision(rev_id)
2232
for parent_id in rev.parent_ids:
2233
self.known_revisions.add(parent_id)
2234
self.to_read.append(parent_id)
2235
self.revisions[rev_id] = rev
2237
def _load_old_inventory(self, rev_id):
2238
old_inv_xml = self.branch.repository.inventory_store.get(rev_id).read()
2239
inv = xml4.serializer_v4.read_inventory_from_string(old_inv_xml)
2240
inv.revision_id = rev_id
2241
rev = self.revisions[rev_id]
2244
def _load_updated_inventory(self, rev_id):
2245
inv_xml = self.inv_weave.get_text(rev_id)
2246
inv = xml5.serializer_v5.read_inventory_from_string(inv_xml, rev_id)
2249
def _convert_one_rev(self, rev_id):
2250
"""Convert revision and all referenced objects to new format."""
2251
rev = self.revisions[rev_id]
2252
inv = self._load_old_inventory(rev_id)
2253
present_parents = [p for p in rev.parent_ids
2254
if p not in self.absent_revisions]
2255
self._convert_revision_contents(rev, inv, present_parents)
2256
self._store_new_inv(rev, inv, present_parents)
2257
self.converted_revs.add(rev_id)
2259
def _store_new_inv(self, rev, inv, present_parents):
2260
new_inv_xml = xml5.serializer_v5.write_inventory_to_string(inv)
2261
new_inv_sha1 = sha_string(new_inv_xml)
2262
self.inv_weave.add_lines(rev.revision_id,
2264
new_inv_xml.splitlines(True))
2265
rev.inventory_sha1 = new_inv_sha1
2267
def _convert_revision_contents(self, rev, inv, present_parents):
2268
"""Convert all the files within a revision.
2270
Also upgrade the inventory to refer to the text revision ids."""
2271
rev_id = rev.revision_id
2272
mutter('converting texts of revision {%s}',
2274
parent_invs = map(self._load_updated_inventory, present_parents)
2275
entries = inv.iter_entries()
2277
for path, ie in entries:
2278
self._convert_file_version(rev, ie, parent_invs)
2280
def _convert_file_version(self, rev, ie, parent_invs):
2281
"""Convert one version of one file.
2283
The file needs to be added into the weave if it is a merge
2284
of >=2 parents or if it's changed from its parent.
2286
file_id = ie.file_id
2287
rev_id = rev.revision_id
2288
w = self.text_weaves.get(file_id)
2291
self.text_weaves[file_id] = w
2292
text_changed = False
2293
parent_candiate_entries = ie.parent_candidates(parent_invs)
2294
heads = graph.Graph(self).heads(parent_candiate_entries.keys())
2295
# XXX: Note that this is unordered - and this is tolerable because
2296
# the previous code was also unordered.
2297
previous_entries = dict((head, parent_candiate_entries[head]) for head
2299
self.snapshot_ie(previous_entries, ie, w, rev_id)
2302
@symbol_versioning.deprecated_method(symbol_versioning.one_one)
2303
def get_parents(self, revision_ids):
2304
for revision_id in revision_ids:
2305
yield self.revisions[revision_id].parent_ids
2307
def get_parent_map(self, revision_ids):
2308
"""See graph._StackedParentsProvider.get_parent_map"""
2309
return dict((revision_id, self.revisions[revision_id])
2310
for revision_id in revision_ids
2311
if revision_id in self.revisions)
2313
def snapshot_ie(self, previous_revisions, ie, w, rev_id):
2314
# TODO: convert this logic, which is ~= snapshot to
2315
# a call to:. This needs the path figured out. rather than a work_tree
2316
# a v4 revision_tree can be given, or something that looks enough like
2317
# one to give the file content to the entry if it needs it.
2318
# and we need something that looks like a weave store for snapshot to
2320
#ie.snapshot(rev, PATH, previous_revisions, REVISION_TREE, InMemoryWeaveStore(self.text_weaves))
2321
if len(previous_revisions) == 1:
2322
previous_ie = previous_revisions.values()[0]
2323
if ie._unchanged(previous_ie):
2324
ie.revision = previous_ie.revision
2327
text = self.branch.repository._text_store.get(ie.text_id)
2328
file_lines = text.readlines()
2329
w.add_lines(rev_id, previous_revisions, file_lines)
2330
self.text_count += 1
2332
w.add_lines(rev_id, previous_revisions, [])
2333
ie.revision = rev_id
2335
def _make_order(self):
2336
"""Return a suitable order for importing revisions.
2338
The order must be such that an revision is imported after all
2339
its (present) parents.
2341
todo = set(self.revisions.keys())
2342
done = self.absent_revisions.copy()
2345
# scan through looking for a revision whose parents
2347
for rev_id in sorted(list(todo)):
2348
rev = self.revisions[rev_id]
2349
parent_ids = set(rev.parent_ids)
2350
if parent_ids.issubset(done):
2351
# can take this one now
2352
order.append(rev_id)
2358
class ConvertBzrDir5To6(Converter):
2359
"""Converts format 5 bzr dirs to format 6."""
2361
def convert(self, to_convert, pb):
2362
"""See Converter.convert()."""
2363
self.bzrdir = to_convert
2365
self.pb.note('starting upgrade from format 5 to 6')
2366
self._convert_to_prefixed()
2367
return BzrDir.open(self.bzrdir.root_transport.base)
2369
def _convert_to_prefixed(self):
2370
from bzrlib.store import TransportStore
2371
self.bzrdir.transport.delete('branch-format')
2372
for store_name in ["weaves", "revision-store"]:
2373
self.pb.note("adding prefixes to %s" % store_name)
2374
store_transport = self.bzrdir.transport.clone(store_name)
2375
store = TransportStore(store_transport, prefixed=True)
2376
for urlfilename in store_transport.list_dir('.'):
2377
filename = urlutils.unescape(urlfilename)
2378
if (filename.endswith(".weave") or
2379
filename.endswith(".gz") or
2380
filename.endswith(".sig")):
2381
file_id, suffix = os.path.splitext(filename)
2385
new_name = store._mapper.map((file_id,)) + suffix
2386
# FIXME keep track of the dirs made RBC 20060121
2388
store_transport.move(filename, new_name)
2389
except errors.NoSuchFile: # catches missing dirs strangely enough
2390
store_transport.mkdir(osutils.dirname(new_name))
2391
store_transport.move(filename, new_name)
2392
self.bzrdir.transport.put_bytes(
2394
BzrDirFormat6().get_format_string(),
2395
mode=self.bzrdir._get_file_mode())
2398
class ConvertBzrDir6ToMeta(Converter):
2399
"""Converts format 6 bzr dirs to metadirs."""
2401
def convert(self, to_convert, pb):
2402
"""See Converter.convert()."""
2403
from bzrlib.repofmt.weaverepo import RepositoryFormat7
2404
from bzrlib.branch import BzrBranchFormat5
2405
self.bzrdir = to_convert
2408
self.total = 20 # the steps we know about
2409
self.garbage_inventories = []
2410
self.dir_mode = self.bzrdir._get_dir_mode()
2411
self.file_mode = self.bzrdir._get_file_mode()
2413
self.pb.note('starting upgrade from format 6 to metadir')
2414
self.bzrdir.transport.put_bytes(
2416
"Converting to format 6",
2417
mode=self.file_mode)
2418
# its faster to move specific files around than to open and use the apis...
2419
# first off, nuke ancestry.weave, it was never used.
2421
self.step('Removing ancestry.weave')
2422
self.bzrdir.transport.delete('ancestry.weave')
2423
except errors.NoSuchFile:
2425
# find out whats there
2426
self.step('Finding branch files')
2427
last_revision = self.bzrdir.open_branch().last_revision()
2428
bzrcontents = self.bzrdir.transport.list_dir('.')
2429
for name in bzrcontents:
2430
if name.startswith('basis-inventory.'):
2431
self.garbage_inventories.append(name)
2432
# create new directories for repository, working tree and branch
2433
repository_names = [('inventory.weave', True),
2434
('revision-store', True),
2436
self.step('Upgrading repository ')
2437
self.bzrdir.transport.mkdir('repository', mode=self.dir_mode)
2438
self.make_lock('repository')
2439
# we hard code the formats here because we are converting into
2440
# the meta format. The meta format upgrader can take this to a
2441
# future format within each component.
2442
self.put_format('repository', RepositoryFormat7())
2443
for entry in repository_names:
2444
self.move_entry('repository', entry)
2446
self.step('Upgrading branch ')
2447
self.bzrdir.transport.mkdir('branch', mode=self.dir_mode)
2448
self.make_lock('branch')
2449
self.put_format('branch', BzrBranchFormat5())
2450
branch_files = [('revision-history', True),
2451
('branch-name', True),
2453
for entry in branch_files:
2454
self.move_entry('branch', entry)
2456
checkout_files = [('pending-merges', True),
2457
('inventory', True),
2458
('stat-cache', False)]
2459
# If a mandatory checkout file is not present, the branch does not have
2460
# a functional checkout. Do not create a checkout in the converted
2462
for name, mandatory in checkout_files:
2463
if mandatory and name not in bzrcontents:
2464
has_checkout = False
2468
if not has_checkout:
2469
self.pb.note('No working tree.')
2470
# If some checkout files are there, we may as well get rid of them.
2471
for name, mandatory in checkout_files:
2472
if name in bzrcontents:
2473
self.bzrdir.transport.delete(name)
2475
from bzrlib.workingtree import WorkingTreeFormat3
2476
self.step('Upgrading working tree')
2477
self.bzrdir.transport.mkdir('checkout', mode=self.dir_mode)
2478
self.make_lock('checkout')
2480
'checkout', WorkingTreeFormat3())
2481
self.bzrdir.transport.delete_multi(
2482
self.garbage_inventories, self.pb)
2483
for entry in checkout_files:
2484
self.move_entry('checkout', entry)
2485
if last_revision is not None:
2486
self.bzrdir.transport.put_bytes(
2487
'checkout/last-revision', last_revision)
2488
self.bzrdir.transport.put_bytes(
2490
BzrDirMetaFormat1().get_format_string(),
2491
mode=self.file_mode)
2492
return BzrDir.open(self.bzrdir.root_transport.base)
2494
def make_lock(self, name):
2495
"""Make a lock for the new control dir name."""
2496
self.step('Make %s lock' % name)
2497
ld = lockdir.LockDir(self.bzrdir.transport,
2499
file_modebits=self.file_mode,
2500
dir_modebits=self.dir_mode)
2503
def move_entry(self, new_dir, entry):
2504
"""Move then entry name into new_dir."""
2506
mandatory = entry[1]
2507
self.step('Moving %s' % name)
2509
self.bzrdir.transport.move(name, '%s/%s' % (new_dir, name))
2510
except errors.NoSuchFile:
2514
def put_format(self, dirname, format):
2515
self.bzrdir.transport.put_bytes('%s/format' % dirname,
2516
format.get_format_string(),
2520
class ConvertMetaToMeta(Converter):
2521
"""Converts the components of metadirs."""
2523
def __init__(self, target_format):
2524
"""Create a metadir to metadir converter.
2526
:param target_format: The final metadir format that is desired.
2528
self.target_format = target_format
2530
def convert(self, to_convert, pb):
2531
"""See Converter.convert()."""
2532
self.bzrdir = to_convert
2536
self.step('checking repository format')
2538
repo = self.bzrdir.open_repository()
2539
except errors.NoRepositoryPresent:
2542
if not isinstance(repo._format, self.target_format.repository_format.__class__):
2543
from bzrlib.repository import CopyConverter
2544
self.pb.note('starting repository conversion')
2545
converter = CopyConverter(self.target_format.repository_format)
2546
converter.convert(repo, pb)
2548
branch = self.bzrdir.open_branch()
2549
except errors.NotBranchError:
2552
# TODO: conversions of Branch and Tree should be done by
2553
# InterXFormat lookups/some sort of registry.
2554
# Avoid circular imports
2555
from bzrlib import branch as _mod_branch
2556
old = branch._format.__class__
2557
new = self.target_format.get_branch_format().__class__
2559
if (old == _mod_branch.BzrBranchFormat5 and
2560
new in (_mod_branch.BzrBranchFormat6,
2561
_mod_branch.BzrBranchFormat7)):
2562
branch_converter = _mod_branch.Converter5to6()
2563
elif (old == _mod_branch.BzrBranchFormat6 and
2564
new == _mod_branch.BzrBranchFormat7):
2565
branch_converter = _mod_branch.Converter6to7()
2567
raise errors.BadConversionTarget("No converter", new)
2568
branch_converter.convert(branch)
2569
branch = self.bzrdir.open_branch()
2570
old = branch._format.__class__
2572
tree = self.bzrdir.open_workingtree(recommend_upgrade=False)
2573
except (errors.NoWorkingTree, errors.NotLocalUrl):
2576
# TODO: conversions of Branch and Tree should be done by
2577
# InterXFormat lookups
2578
if (isinstance(tree, workingtree.WorkingTree3) and
2579
not isinstance(tree, workingtree_4.WorkingTree4) and
2580
isinstance(self.target_format.workingtree_format,
2581
workingtree_4.WorkingTreeFormat4)):
2582
workingtree_4.Converter3to4().convert(tree)
2586
# This is not in remote.py because it's small, and needs to be registered.
2587
# Putting it in remote.py creates a circular import problem.
2588
# we can make it a lazy object if the control formats is turned into something
2590
class RemoteBzrDirFormat(BzrDirMetaFormat1):
2591
"""Format representing bzrdirs accessed via a smart server"""
2593
def get_format_description(self):
2594
return 'bzr remote bzrdir'
2597
def probe_transport(klass, transport):
2598
"""Return a RemoteBzrDirFormat object if it looks possible."""
2600
medium = transport.get_smart_medium()
2601
except (NotImplementedError, AttributeError,
2602
errors.TransportNotPossible, errors.NoSmartMedium,
2603
errors.SmartProtocolError):
2604
# no smart server, so not a branch for this format type.
2605
raise errors.NotBranchError(path=transport.base)
2607
# Decline to open it if the server doesn't support our required
2608
# version (3) so that the VFS-based transport will do it.
2609
if medium.should_probe():
2611
server_version = medium.protocol_version()
2612
except errors.SmartProtocolError:
2613
# Apparently there's no usable smart server there, even though
2614
# the medium supports the smart protocol.
2615
raise errors.NotBranchError(path=transport.base)
2616
if server_version != '2':
2617
raise errors.NotBranchError(path=transport.base)
2620
def initialize_on_transport(self, transport):
2622
# hand off the request to the smart server
2623
client_medium = transport.get_smart_medium()
2624
except errors.NoSmartMedium:
2625
# TODO: lookup the local format from a server hint.
2626
local_dir_format = BzrDirMetaFormat1()
2627
return local_dir_format.initialize_on_transport(transport)
2628
client = _SmartClient(client_medium)
2629
path = client.remote_path_from_transport(transport)
2630
response = client.call('BzrDirFormat.initialize', path)
2631
if response[0] != 'ok':
2632
raise errors.SmartProtocolError('unexpected response code %s' % (response,))
2633
return remote.RemoteBzrDir(transport)
2635
def _open(self, transport):
2636
return remote.RemoteBzrDir(transport)
2638
def __eq__(self, other):
2639
if not isinstance(other, RemoteBzrDirFormat):
2641
return self.get_format_description() == other.get_format_description()
2644
BzrDirFormat.register_control_server_format(RemoteBzrDirFormat)
2647
class BzrDirFormatInfo(object):
2649
def __init__(self, native, deprecated, hidden, experimental):
2650
self.deprecated = deprecated
2651
self.native = native
2652
self.hidden = hidden
2653
self.experimental = experimental
2656
class BzrDirFormatRegistry(registry.Registry):
2657
"""Registry of user-selectable BzrDir subformats.
2659
Differs from BzrDirFormat._control_formats in that it provides sub-formats,
2660
e.g. BzrDirMeta1 with weave repository. Also, it's more user-oriented.
2664
"""Create a BzrDirFormatRegistry."""
2665
self._aliases = set()
2666
super(BzrDirFormatRegistry, self).__init__()
2669
"""Return a set of the format names which are aliases."""
2670
return frozenset(self._aliases)
2672
def register_metadir(self, key,
2673
repository_format, help, native=True, deprecated=False,
2679
"""Register a metadir subformat.
2681
These all use a BzrDirMetaFormat1 bzrdir, but can be parameterized
2682
by the Repository format.
2684
:param repository_format: The fully-qualified repository format class
2686
:param branch_format: Fully-qualified branch format class name as
2688
:param tree_format: Fully-qualified tree format class name as
2691
# This should be expanded to support setting WorkingTree and Branch
2692
# formats, once BzrDirMetaFormat1 supports that.
2693
def _load(full_name):
2694
mod_name, factory_name = full_name.rsplit('.', 1)
2696
mod = __import__(mod_name, globals(), locals(),
2698
except ImportError, e:
2699
raise ImportError('failed to load %s: %s' % (full_name, e))
2701
factory = getattr(mod, factory_name)
2702
except AttributeError:
2703
raise AttributeError('no factory %s in module %r'
2708
bd = BzrDirMetaFormat1()
2709
if branch_format is not None:
2710
bd.set_branch_format(_load(branch_format))
2711
if tree_format is not None:
2712
bd.workingtree_format = _load(tree_format)
2713
if repository_format is not None:
2714
bd.repository_format = _load(repository_format)
2716
self.register(key, helper, help, native, deprecated, hidden,
2717
experimental, alias)
2719
def register(self, key, factory, help, native=True, deprecated=False,
2720
hidden=False, experimental=False, alias=False):
2721
"""Register a BzrDirFormat factory.
2723
The factory must be a callable that takes one parameter: the key.
2724
It must produce an instance of the BzrDirFormat when called.
2726
This function mainly exists to prevent the info object from being
2729
registry.Registry.register(self, key, factory, help,
2730
BzrDirFormatInfo(native, deprecated, hidden, experimental))
2732
self._aliases.add(key)
2734
def register_lazy(self, key, module_name, member_name, help, native=True,
2735
deprecated=False, hidden=False, experimental=False, alias=False):
2736
registry.Registry.register_lazy(self, key, module_name, member_name,
2737
help, BzrDirFormatInfo(native, deprecated, hidden, experimental))
2739
self._aliases.add(key)
2741
def set_default(self, key):
2742
"""Set the 'default' key to be a clone of the supplied key.
2744
This method must be called once and only once.
2746
registry.Registry.register(self, 'default', self.get(key),
2747
self.get_help(key), info=self.get_info(key))
2748
self._aliases.add('default')
2750
def set_default_repository(self, key):
2751
"""Set the FormatRegistry default and Repository default.
2753
This is a transitional method while Repository.set_default_format
2756
if 'default' in self:
2757
self.remove('default')
2758
self.set_default(key)
2759
format = self.get('default')()
2761
def make_bzrdir(self, key):
2762
return self.get(key)()
2764
def help_topic(self, topic):
2765
output = textwrap.dedent("""\
2766
These formats can be used for creating branches, working trees, and
2770
default_realkey = None
2771
default_help = self.get_help('default')
2773
for key in self.keys():
2774
if key == 'default':
2776
help = self.get_help(key)
2777
if help == default_help:
2778
default_realkey = key
2780
help_pairs.append((key, help))
2782
def wrapped(key, help, info):
2784
help = '(native) ' + help
2785
return ':%s:\n%s\n\n' % (key,
2786
textwrap.fill(help, initial_indent=' ',
2787
subsequent_indent=' '))
2788
if default_realkey is not None:
2789
output += wrapped(default_realkey, '(default) %s' % default_help,
2790
self.get_info('default'))
2791
deprecated_pairs = []
2792
experimental_pairs = []
2793
for key, help in help_pairs:
2794
info = self.get_info(key)
2797
elif info.deprecated:
2798
deprecated_pairs.append((key, help))
2799
elif info.experimental:
2800
experimental_pairs.append((key, help))
2802
output += wrapped(key, help, info)
2803
if len(experimental_pairs) > 0:
2804
output += "Experimental formats are shown below.\n\n"
2805
for key, help in experimental_pairs:
2806
info = self.get_info(key)
2807
output += wrapped(key, help, info)
2808
if len(deprecated_pairs) > 0:
2809
output += "Deprecated formats are shown below.\n\n"
2810
for key, help in deprecated_pairs:
2811
info = self.get_info(key)
2812
output += wrapped(key, help, info)
2817
class RepositoryAcquisitionPolicy(object):
2818
"""Abstract base class for repository acquisition policies.
2820
A repository acquisition policy decides how a BzrDir acquires a repository
2821
for a branch that is being created. The most basic policy decision is
2822
whether to create a new repository or use an existing one.
2824
def __init__(self, stack_on, stack_on_pwd, require_stacking):
2827
:param stack_on: A location to stack on
2828
:param stack_on_pwd: If stack_on is relative, the location it is
2830
:param require_stacking: If True, it is a failure to not stack.
2832
self._stack_on = stack_on
2833
self._stack_on_pwd = stack_on_pwd
2834
self._require_stacking = require_stacking
2836
def configure_branch(self, branch):
2837
"""Apply any configuration data from this policy to the branch.
2839
Default implementation sets repository stacking.
2841
if self._stack_on is None:
2843
if self._stack_on_pwd is None:
2844
stack_on = self._stack_on
2847
stack_on = urlutils.rebase_url(self._stack_on,
2849
branch.bzrdir.root_transport.base)
2850
except errors.InvalidRebaseURLs:
2851
stack_on = self._get_full_stack_on()
2853
branch.set_stacked_on_url(stack_on)
2854
except errors.UnstackableBranchFormat:
2855
if self._require_stacking:
2858
def _get_full_stack_on(self):
2859
"""Get a fully-qualified URL for the stack_on location."""
2860
if self._stack_on is None:
2862
if self._stack_on_pwd is None:
2863
return self._stack_on
2865
return urlutils.join(self._stack_on_pwd, self._stack_on)
2867
def _add_fallback(self, repository):
2868
"""Add a fallback to the supplied repository, if stacking is set."""
2869
stack_on = self._get_full_stack_on()
2870
if stack_on is None:
2872
stacked_dir = BzrDir.open(stack_on)
2874
stacked_repo = stacked_dir.open_branch().repository
2875
except errors.NotBranchError:
2876
stacked_repo = stacked_dir.open_repository()
2878
repository.add_fallback_repository(stacked_repo)
2879
except errors.UnstackableRepositoryFormat:
2880
if self._require_stacking:
2883
def acquire_repository(self, make_working_trees=None, shared=False):
2884
"""Acquire a repository for this bzrdir.
2886
Implementations may create a new repository or use a pre-exising
2888
:param make_working_trees: If creating a repository, set
2889
make_working_trees to this value (if non-None)
2890
:param shared: If creating a repository, make it shared if True
2891
:return: A repository
2893
raise NotImplemented(RepositoryAcquisitionPolicy.acquire_repository)
2896
class CreateRepository(RepositoryAcquisitionPolicy):
2897
"""A policy of creating a new repository"""
2899
def __init__(self, bzrdir, stack_on=None, stack_on_pwd=None,
2900
require_stacking=False):
2903
:param bzrdir: The bzrdir to create the repository on.
2904
:param stack_on: A location to stack on
2905
:param stack_on_pwd: If stack_on is relative, the location it is
2908
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2910
self._bzrdir = bzrdir
2912
def acquire_repository(self, make_working_trees=None, shared=False):
2913
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2915
Creates the desired repository in the bzrdir we already have.
2917
repository = self._bzrdir.create_repository(shared=shared)
2918
self._add_fallback(repository)
2919
if make_working_trees is not None:
2920
repository.set_make_working_trees(make_working_trees)
2924
class UseExistingRepository(RepositoryAcquisitionPolicy):
2925
"""A policy of reusing an existing repository"""
2927
def __init__(self, repository, stack_on=None, stack_on_pwd=None,
2928
require_stacking=False):
2931
:param repository: The repository to use.
2932
:param stack_on: A location to stack on
2933
:param stack_on_pwd: If stack_on is relative, the location it is
2936
RepositoryAcquisitionPolicy.__init__(self, stack_on, stack_on_pwd,
2938
self._repository = repository
2940
def acquire_repository(self, make_working_trees=None, shared=False):
2941
"""Implementation of RepositoryAcquisitionPolicy.acquire_repository
2943
Returns an existing repository to use
2945
self._add_fallback(self._repository)
2946
return self._repository
2949
format_registry = BzrDirFormatRegistry()
2950
format_registry.register('weave', BzrDirFormat6,
2951
'Pre-0.8 format. Slower than knit and does not'
2952
' support checkouts or shared repositories.',
2954
format_registry.register_metadir('knit',
2955
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2956
'Format using knits. Recommended for interoperation with bzr <= 0.14.',
2957
branch_format='bzrlib.branch.BzrBranchFormat5',
2958
tree_format='bzrlib.workingtree.WorkingTreeFormat3')
2959
format_registry.register_metadir('metaweave',
2960
'bzrlib.repofmt.weaverepo.RepositoryFormat7',
2961
'Transitional format in 0.8. Slower than knit.',
2962
branch_format='bzrlib.branch.BzrBranchFormat5',
2963
tree_format='bzrlib.workingtree.WorkingTreeFormat3',
2965
format_registry.register_metadir('dirstate',
2966
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2967
help='New in 0.15: Fast local operations. Compatible with bzr 0.8 and '
2968
'above when accessed over the network.',
2969
branch_format='bzrlib.branch.BzrBranchFormat5',
2970
# this uses bzrlib.workingtree.WorkingTreeFormat4 because importing
2971
# directly from workingtree_4 triggers a circular import.
2972
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2974
format_registry.register_metadir('dirstate-tags',
2975
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit1',
2976
help='New in 0.15: Fast local operations and improved scaling for '
2977
'network operations. Additionally adds support for tags.'
2978
' Incompatible with bzr < 0.15.',
2979
branch_format='bzrlib.branch.BzrBranchFormat6',
2980
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2982
format_registry.register_metadir('rich-root',
2983
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit4',
2984
help='New in 1.0. Better handling of tree roots. Incompatible with'
2986
branch_format='bzrlib.branch.BzrBranchFormat6',
2987
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2989
format_registry.register_metadir('dirstate-with-subtree',
2990
'bzrlib.repofmt.knitrepo.RepositoryFormatKnit3',
2991
help='New in 0.15: Fast local operations and improved scaling for '
2992
'network operations. Additionally adds support for versioning nested '
2993
'bzr branches. Incompatible with bzr < 0.15.',
2994
branch_format='bzrlib.branch.BzrBranchFormat6',
2995
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
2999
format_registry.register_metadir('pack-0.92',
3000
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack1',
3001
help='New in 0.92: Pack-based format with data compatible with '
3002
'dirstate-tags format repositories. Interoperates with '
3003
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3004
'Previously called knitpack-experimental. '
3005
'For more information, see '
3006
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3007
branch_format='bzrlib.branch.BzrBranchFormat6',
3008
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3010
format_registry.register_metadir('pack-0.92-subtree',
3011
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack3',
3012
help='New in 0.92: Pack-based format with data compatible with '
3013
'dirstate-with-subtree format repositories. Interoperates with '
3014
'bzr repositories before 0.92 but cannot be read by bzr < 0.92. '
3015
'Previously called knitpack-experimental. '
3016
'For more information, see '
3017
'http://doc.bazaar-vcs.org/latest/developers/packrepo.html.',
3018
branch_format='bzrlib.branch.BzrBranchFormat6',
3019
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3023
format_registry.register_metadir('rich-root-pack',
3024
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack4',
3025
help='New in 1.0: Pack-based format with data compatible with '
3026
'rich-root format repositories. Incompatible with'
3028
branch_format='bzrlib.branch.BzrBranchFormat6',
3029
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3031
format_registry.register_metadir('1.6',
3032
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5',
3033
help='A branch and pack based repository that supports stacking. ',
3034
branch_format='bzrlib.branch.BzrBranchFormat7',
3035
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3037
format_registry.register_metadir('1.6.1-rich-root',
3038
'bzrlib.repofmt.pack_repo.RepositoryFormatKnitPack5RichRoot',
3039
help='A branch and pack based repository that supports stacking '
3040
'and rich root data (needed for bzr-svn). ',
3041
branch_format='bzrlib.branch.BzrBranchFormat7',
3042
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3044
# The following two formats should always just be aliases.
3045
format_registry.register_metadir('development',
3046
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3047
help='Current development format. Can convert data to and from pack-0.92 '
3048
'(and anything compatible with pack-0.92) format repositories. '
3049
'Repositories and branches in this format can only be read by bzr.dev. '
3051
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3053
branch_format='bzrlib.branch.BzrBranchFormat7',
3054
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3058
format_registry.register_metadir('development-subtree',
3059
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3060
help='Current development format, subtree variant. Can convert data to and '
3061
'from pack-0.92-subtree (and anything compatible with '
3062
'pack-0.92-subtree) format repositories. Repositories and branches in '
3063
'this format can only be read by bzr.dev. Please read '
3064
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3066
branch_format='bzrlib.branch.BzrBranchFormat7',
3067
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3071
# And the development formats which the will have aliased one of follow:
3072
format_registry.register_metadir('development1',
3073
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1',
3074
help='A branch and pack based repository that supports stacking. '
3076
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3078
branch_format='bzrlib.branch.BzrBranchFormat7',
3079
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3083
format_registry.register_metadir('development1-subtree',
3084
'bzrlib.repofmt.pack_repo.RepositoryFormatPackDevelopment1Subtree',
3085
help='A branch and pack based repository that supports stacking. '
3087
'http://doc.bazaar-vcs.org/latest/developers/development-repo.html '
3089
branch_format='bzrlib.branch.BzrBranchFormat7',
3090
tree_format='bzrlib.workingtree.WorkingTreeFormat4',
3094
# The current format that is made on 'bzr init'.
3095
format_registry.set_default('pack-0.92')
added
removed
bzrlib/bzrdir.py
