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# Copyright (C) 2005, 2006, 2007, 2008, 2009 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from cStringIO import StringIO
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from itertools import chain
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config as _mod_config,
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revision as _mod_revision,
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from bzrlib.config import BranchConfig, TransportConfig
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from bzrlib.repofmt.pack_repo import RepositoryFormatKnitPack5RichRoot
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from bzrlib.tag import (
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from bzrlib.decorators import needs_read_lock, needs_write_lock, only_raises
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from bzrlib.hooks import HookPoint, Hooks
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from bzrlib.inter import InterObject
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from bzrlib.lock import _RelockDebugMixin
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from bzrlib import registry
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from bzrlib.symbol_versioning import (
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from bzrlib.trace import mutter, mutter_callsite, note, is_quiet
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar Branch Format 6 (bzr 0.15)\n"
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# TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster. In general anything can be
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# cached in memory between lock and unlock operations. .. nb thats
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# what the transaction identity map provides
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######################################################################
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"""Branch holding a history of revisions.
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Base directory/url of the branch.
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hooks: An instance of BranchHooks.
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# this is really an instance variable - FIXME move it there
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def __init__(self, *ignored, **ignored_too):
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self.tags = self._format.make_tags(self)
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self._revision_history_cache = None
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self._revision_id_to_revno_cache = None
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self._partial_revision_id_to_revno_cache = {}
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self._partial_revision_history_cache = []
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self._last_revision_info_cache = None
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self._merge_sorted_revisions_cache = None
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hooks = Branch.hooks['open']
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def _open_hook(self):
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"""Called by init to allow simpler extension of the base class."""
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def _activate_fallback_location(self, url):
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"""Activate the branch/repository from url as a fallback repository."""
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repo = self._get_fallback_repository(url)
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if repo.has_same_location(self.repository):
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raise errors.UnstackableLocationError(self.base, url)
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self.repository.add_fallback_repository(repo)
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def break_lock(self):
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"""Break a lock if one is present from another instance.
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Uses the ui factory to ask for confirmation if the lock may be from
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This will probe the repository for its lock as well.
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self.control_files.break_lock()
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self.repository.break_lock()
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master = self.get_master_branch()
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if master is not None:
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def _check_stackable_repo(self):
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if not self.repository._format.supports_external_lookups:
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raise errors.UnstackableRepositoryFormat(self.repository._format,
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self.repository.base)
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def _extend_partial_history(self, stop_index=None, stop_revision=None):
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"""Extend the partial history to include a given index
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If a stop_index is supplied, stop when that index has been reached.
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If a stop_revision is supplied, stop when that revision is
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encountered. Otherwise, stop when the beginning of history is
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:param stop_index: The index which should be present. When it is
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present, history extension will stop.
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:param stop_revision: The revision id which should be present. When
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it is encountered, history extension will stop.
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if len(self._partial_revision_history_cache) == 0:
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self._partial_revision_history_cache = [self.last_revision()]
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repository._iter_for_revno(
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self.repository, self._partial_revision_history_cache,
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stop_index=stop_index, stop_revision=stop_revision)
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if self._partial_revision_history_cache[-1] == _mod_revision.NULL_REVISION:
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self._partial_revision_history_cache.pop()
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def _get_check_refs(self):
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"""Get the references needed for check().
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revid = self.last_revision()
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return [('revision-existence', revid), ('lefthand-distance', revid)]
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def open(base, _unsupported=False, possible_transports=None):
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"""Open the branch rooted at base.
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For instance, if the branch is at URL/.bzr/branch,
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Branch.open(URL) -> a Branch instance.
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control = bzrdir.BzrDir.open(base, _unsupported,
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possible_transports=possible_transports)
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return control.open_branch(_unsupported)
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def open_from_transport(transport, _unsupported=False):
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"""Open the branch rooted at transport"""
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control = bzrdir.BzrDir.open_from_transport(transport, _unsupported)
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return control.open_branch(_unsupported)
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def open_containing(url, possible_transports=None):
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"""Open an existing branch which contains url.
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This probes for a branch at url, and searches upwards from there.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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If there is one and it is either an unrecognised format or an unsupported
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format, UnknownFormatError or UnsupportedFormatError are raised.
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If there is one, it is returned, along with the unused portion of url.
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control, relpath = bzrdir.BzrDir.open_containing(url,
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return control.open_branch(), relpath
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def _push_should_merge_tags(self):
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"""Should _basic_push merge this branch's tags into the target?
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The default implementation returns False if this branch has no tags,
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and True the rest of the time. Subclasses may override this.
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return self.supports_tags() and self.tags.get_tag_dict()
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def get_config(self):
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return BranchConfig(self)
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def _get_config(self):
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"""Get the concrete config for just the config in this branch.
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This is not intended for client use; see Branch.get_config for the
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:return: An object supporting get_option and set_option.
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raise NotImplementedError(self._get_config)
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def _get_fallback_repository(self, url):
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"""Get the repository we fallback to at url."""
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url = urlutils.join(self.base, url)
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a_bzrdir = bzrdir.BzrDir.open(url,
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possible_transports=[self.bzrdir.root_transport])
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return a_bzrdir.open_branch().repository
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def _get_tags_bytes(self):
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"""Get the bytes of a serialised tags dict.
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Note that not all branches support tags, nor do all use the same tags
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logic: this method is specific to BasicTags. Other tag implementations
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may use the same method name and behave differently, safely, because
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of the double-dispatch via
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format.make_tags->tags_instance->get_tags_dict.
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:return: The bytes of the tags file.
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:seealso: Branch._set_tags_bytes.
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return self._transport.get_bytes('tags')
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def _get_nick(self, local=False, possible_transports=None):
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config = self.get_config()
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# explicit overrides master, but don't look for master if local is True
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if not local and not config.has_explicit_nickname():
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master = self.get_master_branch(possible_transports)
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if master is not None:
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# return the master branch value
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except errors.BzrError, e:
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# Silently fall back to local implicit nick if the master is
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mutter("Could not connect to bound branch, "
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"falling back to local nick.\n " + str(e))
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return config.get_nickname()
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def _set_nick(self, nick):
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self.get_config().set_user_option('nickname', nick, warn_masked=True)
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nick = property(_get_nick, _set_nick)
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raise NotImplementedError(self.is_locked)
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def _lefthand_history(self, revision_id, last_rev=None,
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if 'evil' in debug.debug_flags:
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mutter_callsite(4, "_lefthand_history scales with history.")
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# stop_revision must be a descendant of last_revision
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graph = self.repository.get_graph()
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if last_rev is not None:
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if not graph.is_ancestor(last_rev, revision_id):
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# our previous tip is not merged into stop_revision
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raise errors.DivergedBranches(self, other_branch)
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# make a new revision history from the graph
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parents_map = graph.get_parent_map([revision_id])
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if revision_id not in parents_map:
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raise errors.NoSuchRevision(self, revision_id)
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current_rev_id = revision_id
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check_not_reserved_id = _mod_revision.check_not_reserved_id
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# Do not include ghosts or graph origin in revision_history
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while (current_rev_id in parents_map and
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len(parents_map[current_rev_id]) > 0):
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check_not_reserved_id(current_rev_id)
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new_history.append(current_rev_id)
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current_rev_id = parents_map[current_rev_id][0]
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parents_map = graph.get_parent_map([current_rev_id])
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new_history.reverse()
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def lock_write(self):
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raise NotImplementedError(self.lock_write)
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raise NotImplementedError(self.lock_read)
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raise NotImplementedError(self.unlock)
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def peek_lock_mode(self):
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"""Return lock mode for the Branch: 'r', 'w' or None"""
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raise NotImplementedError(self.peek_lock_mode)
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def get_physical_lock_status(self):
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raise NotImplementedError(self.get_physical_lock_status)
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def dotted_revno_to_revision_id(self, revno, _cache_reverse=False):
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"""Return the revision_id for a dotted revno.
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:param revno: a tuple like (1,) or (1,1,2)
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:param _cache_reverse: a private parameter enabling storage
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of the reverse mapping in a top level cache. (This should
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only be done in selective circumstances as we want to
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avoid having the mapping cached multiple times.)
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:return: the revision_id
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:raises errors.NoSuchRevision: if the revno doesn't exist
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rev_id = self._do_dotted_revno_to_revision_id(revno)
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self._partial_revision_id_to_revno_cache[rev_id] = revno
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def _do_dotted_revno_to_revision_id(self, revno):
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"""Worker function for dotted_revno_to_revision_id.
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Subclasses should override this if they wish to
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provide a more efficient implementation.
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return self.get_rev_id(revno[0])
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revision_id_to_revno = self.get_revision_id_to_revno_map()
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revision_ids = [revision_id for revision_id, this_revno
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in revision_id_to_revno.iteritems()
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if revno == this_revno]
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if len(revision_ids) == 1:
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return revision_ids[0]
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revno_str = '.'.join(map(str, revno))
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raise errors.NoSuchRevision(self, revno_str)
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def revision_id_to_dotted_revno(self, revision_id):
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"""Given a revision id, return its dotted revno.
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:return: a tuple like (1,) or (400,1,3).
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return self._do_revision_id_to_dotted_revno(revision_id)
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def _do_revision_id_to_dotted_revno(self, revision_id):
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"""Worker function for revision_id_to_revno."""
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# Try the caches if they are loaded
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result = self._partial_revision_id_to_revno_cache.get(revision_id)
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if result is not None:
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if self._revision_id_to_revno_cache:
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result = self._revision_id_to_revno_cache.get(revision_id)
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raise errors.NoSuchRevision(self, revision_id)
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# Try the mainline as it's optimised
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revno = self.revision_id_to_revno(revision_id)
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except errors.NoSuchRevision:
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# We need to load and use the full revno map after all
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result = self.get_revision_id_to_revno_map().get(revision_id)
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raise errors.NoSuchRevision(self, revision_id)
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def get_revision_id_to_revno_map(self):
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"""Return the revision_id => dotted revno map.
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This will be regenerated on demand, but will be cached.
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:return: A dictionary mapping revision_id => dotted revno.
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This dictionary should not be modified by the caller.
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if self._revision_id_to_revno_cache is not None:
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mapping = self._revision_id_to_revno_cache
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mapping = self._gen_revno_map()
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self._cache_revision_id_to_revno(mapping)
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# TODO: jam 20070417 Since this is being cached, should we be returning
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# I would rather not, and instead just declare that users should not
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# modify the return value.
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def _gen_revno_map(self):
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"""Create a new mapping from revision ids to dotted revnos.
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Dotted revnos are generated based on the current tip in the revision
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This is the worker function for get_revision_id_to_revno_map, which
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just caches the return value.
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:return: A dictionary mapping revision_id => dotted revno.
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revision_id_to_revno = dict((rev_id, revno)
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for rev_id, depth, revno, end_of_merge
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in self.iter_merge_sorted_revisions())
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return revision_id_to_revno
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def iter_merge_sorted_revisions(self, start_revision_id=None,
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stop_revision_id=None, stop_rule='exclude', direction='reverse'):
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"""Walk the revisions for a branch in merge sorted order.
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Merge sorted order is the output from a merge-aware,
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topological sort, i.e. all parents come before their
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children going forward; the opposite for reverse.
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:param start_revision_id: the revision_id to begin walking from.
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If None, the branch tip is used.
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:param stop_revision_id: the revision_id to terminate the walk
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after. If None, the rest of history is included.
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:param stop_rule: if stop_revision_id is not None, the precise rule
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to use for termination:
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* 'exclude' - leave the stop revision out of the result (default)
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* 'include' - the stop revision is the last item in the result
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* 'with-merges' - include the stop revision and all of its
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merged revisions in the result
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:param direction: either 'reverse' or 'forward':
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* reverse means return the start_revision_id first, i.e.
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start at the most recent revision and go backwards in history
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* forward returns tuples in the opposite order to reverse.
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Note in particular that forward does *not* do any intelligent
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ordering w.r.t. depth as some clients of this API may like.
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(If required, that ought to be done at higher layers.)
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:return: an iterator over (revision_id, depth, revno, end_of_merge)
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* revision_id: the unique id of the revision
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* depth: How many levels of merging deep this node has been
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* revno_sequence: This field provides a sequence of
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revision numbers for all revisions. The format is:
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(REVNO, BRANCHNUM, BRANCHREVNO). BRANCHNUM is the number of the
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branch that the revno is on. From left to right the REVNO numbers
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are the sequence numbers within that branch of the revision.
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* end_of_merge: When True the next node (earlier in history) is
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part of a different merge.
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# Note: depth and revno values are in the context of the branch so
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# we need the full graph to get stable numbers, regardless of the
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if self._merge_sorted_revisions_cache is None:
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last_revision = self.last_revision()
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last_key = (last_revision,)
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known_graph = self.repository.revisions.get_known_graph_ancestry(
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self._merge_sorted_revisions_cache = known_graph.merge_sort(
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filtered = self._filter_merge_sorted_revisions(
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self._merge_sorted_revisions_cache, start_revision_id,
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stop_revision_id, stop_rule)
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if direction == 'reverse':
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if direction == 'forward':
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return reversed(list(filtered))
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raise ValueError('invalid direction %r' % direction)
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def _filter_merge_sorted_revisions(self, merge_sorted_revisions,
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start_revision_id, stop_revision_id, stop_rule):
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"""Iterate over an inclusive range of sorted revisions."""
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rev_iter = iter(merge_sorted_revisions)
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if start_revision_id is not None:
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for node in rev_iter:
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rev_id = node.key[-1]
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if rev_id != start_revision_id:
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# The decision to include the start or not
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# depends on the stop_rule if a stop is provided
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# so pop this node back into the iterator
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rev_iter = chain(iter([node]), rev_iter)
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if stop_revision_id is None:
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for node in rev_iter:
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rev_id = node.key[-1]
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yield (rev_id, node.merge_depth, node.revno,
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elif stop_rule == 'exclude':
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for node in rev_iter:
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rev_id = node.key[-1]
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if rev_id == stop_revision_id:
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yield (rev_id, node.merge_depth, node.revno,
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elif stop_rule == 'include':
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for node in rev_iter:
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rev_id = node.key[-1]
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yield (rev_id, node.merge_depth, node.revno,
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if rev_id == stop_revision_id:
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elif stop_rule == 'with-merges':
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stop_rev = self.repository.get_revision(stop_revision_id)
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if stop_rev.parent_ids:
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left_parent = stop_rev.parent_ids[0]
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left_parent = _mod_revision.NULL_REVISION
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for node in rev_iter:
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rev_id = node.key[-1]
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if rev_id == left_parent:
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yield (rev_id, node.merge_depth, node.revno,
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raise ValueError('invalid stop_rule %r' % stop_rule)
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def leave_lock_in_place(self):
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"""Tell this branch object not to release the physical lock when this
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If lock_write doesn't return a token, then this method is not supported.
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self.control_files.leave_in_place()
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def dont_leave_lock_in_place(self):
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"""Tell this branch object to release the physical lock when this
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object is unlocked, even if it didn't originally acquire it.
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If lock_write doesn't return a token, then this method is not supported.
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self.control_files.dont_leave_in_place()
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def bind(self, other):
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"""Bind the local branch the other branch.
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:param other: The branch to bind to
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raise errors.UpgradeRequired(self.base)
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def set_append_revisions_only(self, enabled):
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if not self._format.supports_set_append_revisions_only():
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raise errors.UpgradeRequired(self.base)
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self.get_config().set_user_option('append_revisions_only', value,
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def set_reference_info(self, file_id, tree_path, branch_location):
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"""Set the branch location to use for a tree reference."""
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raise errors.UnsupportedOperation(self.set_reference_info, self)
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def get_reference_info(self, file_id):
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"""Get the tree_path and branch_location for a tree reference."""
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raise errors.UnsupportedOperation(self.get_reference_info, self)
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def fetch(self, from_branch, last_revision=None, pb=None):
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"""Copy revisions from from_branch into this branch.
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:param from_branch: Where to copy from.
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:param last_revision: What revision to stop at (None for at the end
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:param pb: An optional progress bar to use.
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if self.base == from_branch.base:
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symbol_versioning.warn(
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symbol_versioning.deprecated_in((1, 14, 0))
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% "pb parameter to fetch()")
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from_branch.lock_read()
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if last_revision is None:
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last_revision = from_branch.last_revision()
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last_revision = _mod_revision.ensure_null(last_revision)
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return self.repository.fetch(from_branch.repository,
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revision_id=last_revision,
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def get_bound_location(self):
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"""Return the URL of the branch we are bound to.
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Older format branches cannot bind, please be sure to use a metadir
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def get_old_bound_location(self):
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"""Return the URL of the branch we used to be bound to
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raise errors.UpgradeRequired(self.base)
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def get_commit_builder(self, parents, config=None, timestamp=None,
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timezone=None, committer=None, revprops=None,
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"""Obtain a CommitBuilder for this branch.
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:param parents: Revision ids of the parents of the new revision.
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:param config: Optional configuration to use.
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:param timestamp: Optional timestamp recorded for commit.
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:param timezone: Optional timezone for timestamp.
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:param committer: Optional committer to set for commit.
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:param revprops: Optional dictionary of revision properties.
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:param revision_id: Optional revision id.
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config = self.get_config()
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return self.repository.get_commit_builder(self, parents, config,
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timestamp, timezone, committer, revprops, revision_id)
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def get_master_branch(self, possible_transports=None):
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"""Return the branch we are bound to.
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:return: Either a Branch, or None
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def get_revision_delta(self, revno):
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"""Return the delta for one revision.
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The delta is relative to its mainline predecessor, or the
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empty tree for revision 1.
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rh = self.revision_history()
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if not (1 <= revno <= len(rh)):
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raise errors.InvalidRevisionNumber(revno)
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return self.repository.get_revision_delta(rh[revno-1])
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def get_stacked_on_url(self):
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"""Get the URL this branch is stacked against.
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:raises NotStacked: If the branch is not stacked.
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:raises UnstackableBranchFormat: If the branch does not support
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raise NotImplementedError(self.get_stacked_on_url)
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def print_file(self, file, revision_id):
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"""Print `file` to stdout."""
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raise NotImplementedError(self.print_file)
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def set_revision_history(self, rev_history):
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raise NotImplementedError(self.set_revision_history)
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def set_parent(self, url):
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"""See Branch.set_parent."""
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# TODO: Maybe delete old location files?
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# URLs should never be unicode, even on the local fs,
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# FIXUP this and get_parent in a future branch format bump:
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# read and rewrite the file. RBC 20060125
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if isinstance(url, unicode):
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url = url.encode('ascii')
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except UnicodeEncodeError:
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raise errors.InvalidURL(url,
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"Urls must be 7-bit ascii, "
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"use bzrlib.urlutils.escape")
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url = urlutils.relative_url(self.base, url)
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self._set_parent_location(url)
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def set_stacked_on_url(self, url):
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"""Set the URL this branch is stacked against.
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:raises UnstackableBranchFormat: If the branch does not support
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:raises UnstackableRepositoryFormat: If the repository does not support
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if not self._format.supports_stacking():
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raise errors.UnstackableBranchFormat(self._format, self.base)
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# XXX: Changing from one fallback repository to another does not check
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# that all the data you need is present in the new fallback.
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# Possibly it should.
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self._check_stackable_repo()
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old_url = self.get_stacked_on_url()
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except (errors.NotStacked, errors.UnstackableBranchFormat,
688
errors.UnstackableRepositoryFormat):
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self._activate_fallback_location(url)
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# write this out after the repository is stacked to avoid setting a
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# stacked config that doesn't work.
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self._set_config_location('stacked_on_location', url)
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"""Change a branch to be unstacked, copying data as needed.
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Don't call this directly, use set_stacked_on_url(None).
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pb = ui.ui_factory.nested_progress_bar()
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pb.update("Unstacking")
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# The basic approach here is to fetch the tip of the branch,
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# including all available ghosts, from the existing stacked
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# repository into a new repository object without the fallbacks.
709
# XXX: See <https://launchpad.net/bugs/397286> - this may not be
710
# correct for CHKMap repostiories
711
old_repository = self.repository
712
if len(old_repository._fallback_repositories) != 1:
713
raise AssertionError("can't cope with fallback repositories "
714
"of %r" % (self.repository,))
715
# unlock it, including unlocking the fallback
716
old_repository.unlock()
717
old_repository.lock_read()
719
# Repositories don't offer an interface to remove fallback
720
# repositories today; take the conceptually simpler option and just
721
# reopen it. We reopen it starting from the URL so that we
722
# get a separate connection for RemoteRepositories and can
723
# stream from one of them to the other. This does mean doing
724
# separate SSH connection setup, but unstacking is not a
725
# common operation so it's tolerable.
726
new_bzrdir = bzrdir.BzrDir.open(self.bzrdir.root_transport.base)
727
new_repository = new_bzrdir.find_repository()
728
self.repository = new_repository
729
if self.repository._fallback_repositories:
730
raise AssertionError("didn't expect %r to have "
731
"fallback_repositories"
732
% (self.repository,))
733
# this is not paired with an unlock because it's just restoring
734
# the previous state; the lock's released when set_stacked_on_url
736
self.repository.lock_write()
737
# XXX: If you unstack a branch while it has a working tree
738
# with a pending merge, the pending-merged revisions will no
739
# longer be present. You can (probably) revert and remerge.
741
# XXX: This only fetches up to the tip of the repository; it
742
# doesn't bring across any tags. That's fairly consistent
743
# with how branch works, but perhaps not ideal.
744
self.repository.fetch(old_repository,
745
revision_id=self.last_revision(),
748
old_repository.unlock()
752
def _set_tags_bytes(self, bytes):
753
"""Mirror method for _get_tags_bytes.
755
:seealso: Branch._get_tags_bytes.
757
return _run_with_write_locked_target(self, self._transport.put_bytes,
760
def _cache_revision_history(self, rev_history):
761
"""Set the cached revision history to rev_history.
763
The revision_history method will use this cache to avoid regenerating
764
the revision history.
766
This API is semi-public; it only for use by subclasses, all other code
767
should consider it to be private.
769
self._revision_history_cache = rev_history
771
def _cache_revision_id_to_revno(self, revision_id_to_revno):
772
"""Set the cached revision_id => revno map to revision_id_to_revno.
774
This API is semi-public; it only for use by subclasses, all other code
775
should consider it to be private.
777
self._revision_id_to_revno_cache = revision_id_to_revno
779
def _clear_cached_state(self):
780
"""Clear any cached data on this branch, e.g. cached revision history.
782
This means the next call to revision_history will need to call
783
_gen_revision_history.
785
This API is semi-public; it only for use by subclasses, all other code
786
should consider it to be private.
788
self._revision_history_cache = None
789
self._revision_id_to_revno_cache = None
790
self._last_revision_info_cache = None
791
self._merge_sorted_revisions_cache = None
792
self._partial_revision_history_cache = []
793
self._partial_revision_id_to_revno_cache = {}
795
def _gen_revision_history(self):
796
"""Return sequence of revision hashes on to this branch.
798
Unlike revision_history, this method always regenerates or rereads the
799
revision history, i.e. it does not cache the result, so repeated calls
802
Concrete subclasses should override this instead of revision_history so
803
that subclasses do not need to deal with caching logic.
805
This API is semi-public; it only for use by subclasses, all other code
806
should consider it to be private.
808
raise NotImplementedError(self._gen_revision_history)
811
def revision_history(self):
812
"""Return sequence of revision ids on this branch.
814
This method will cache the revision history for as long as it is safe to
817
if 'evil' in debug.debug_flags:
818
mutter_callsite(3, "revision_history scales with history.")
819
if self._revision_history_cache is not None:
820
history = self._revision_history_cache
822
history = self._gen_revision_history()
823
self._cache_revision_history(history)
827
"""Return current revision number for this branch.
829
That is equivalent to the number of revisions committed to
832
return self.last_revision_info()[0]
835
"""Older format branches cannot bind or unbind."""
836
raise errors.UpgradeRequired(self.base)
838
def last_revision(self):
839
"""Return last revision id, or NULL_REVISION."""
840
return self.last_revision_info()[1]
843
def last_revision_info(self):
844
"""Return information about the last revision.
846
:return: A tuple (revno, revision_id).
848
if self._last_revision_info_cache is None:
849
self._last_revision_info_cache = self._last_revision_info()
850
return self._last_revision_info_cache
852
def _last_revision_info(self):
853
rh = self.revision_history()
856
return (revno, rh[-1])
858
return (0, _mod_revision.NULL_REVISION)
860
@deprecated_method(deprecated_in((1, 6, 0)))
861
def missing_revisions(self, other, stop_revision=None):
862
"""Return a list of new revisions that would perfectly fit.
864
If self and other have not diverged, return a list of the revisions
865
present in other, but missing from self.
867
self_history = self.revision_history()
868
self_len = len(self_history)
869
other_history = other.revision_history()
870
other_len = len(other_history)
871
common_index = min(self_len, other_len) -1
872
if common_index >= 0 and \
873
self_history[common_index] != other_history[common_index]:
874
raise errors.DivergedBranches(self, other)
876
if stop_revision is None:
877
stop_revision = other_len
879
if stop_revision > other_len:
880
raise errors.NoSuchRevision(self, stop_revision)
881
return other_history[self_len:stop_revision]
884
def update_revisions(self, other, stop_revision=None, overwrite=False,
886
"""Pull in new perfect-fit revisions.
888
:param other: Another Branch to pull from
889
:param stop_revision: Updated until the given revision
890
:param overwrite: Always set the branch pointer, rather than checking
891
to see if it is a proper descendant.
892
:param graph: A Graph object that can be used to query history
893
information. This can be None.
896
return InterBranch.get(other, self).update_revisions(stop_revision,
899
def import_last_revision_info(self, source_repo, revno, revid):
900
"""Set the last revision info, importing from another repo if necessary.
902
This is used by the bound branch code to upload a revision to
903
the master branch first before updating the tip of the local branch.
905
:param source_repo: Source repository to optionally fetch from
906
:param revno: Revision number of the new tip
907
:param revid: Revision id of the new tip
909
if not self.repository.has_same_location(source_repo):
910
self.repository.fetch(source_repo, revision_id=revid)
911
self.set_last_revision_info(revno, revid)
913
def revision_id_to_revno(self, revision_id):
914
"""Given a revision id, return its revno"""
915
if _mod_revision.is_null(revision_id):
917
history = self.revision_history()
919
return history.index(revision_id) + 1
921
raise errors.NoSuchRevision(self, revision_id)
924
def get_rev_id(self, revno, history=None):
925
"""Find the revision id of the specified revno."""
927
return _mod_revision.NULL_REVISION
928
last_revno, last_revid = self.last_revision_info()
929
if revno == last_revno:
931
if revno <= 0 or revno > last_revno:
932
raise errors.NoSuchRevision(self, revno)
933
distance_from_last = last_revno - revno
934
if len(self._partial_revision_history_cache) <= distance_from_last:
935
self._extend_partial_history(distance_from_last)
936
return self._partial_revision_history_cache[distance_from_last]
939
def pull(self, source, overwrite=False, stop_revision=None,
940
possible_transports=None, *args, **kwargs):
941
"""Mirror source into this branch.
943
This branch is considered to be 'local', having low latency.
945
:returns: PullResult instance
947
return InterBranch.get(source, self).pull(overwrite=overwrite,
948
stop_revision=stop_revision,
949
possible_transports=possible_transports, *args, **kwargs)
951
def push(self, target, overwrite=False, stop_revision=None, *args,
953
"""Mirror this branch into target.
955
This branch is considered to be 'local', having low latency.
957
return InterBranch.get(self, target).push(overwrite, stop_revision,
960
def lossy_push(self, target, stop_revision=None):
961
"""Push deltas into another branch.
963
:note: This does not, like push, retain the revision ids from
964
the source branch and will, rather than adding bzr-specific
965
metadata, push only those semantics of the revision that can be
966
natively represented by this branch' VCS.
968
:param target: Target branch
969
:param stop_revision: Revision to push, defaults to last revision.
970
:return: BranchPushResult with an extra member revidmap:
971
A dictionary mapping revision ids from the target branch
972
to new revision ids in the target branch, for each
973
revision that was pushed.
975
inter = InterBranch.get(self, target)
976
lossy_push = getattr(inter, "lossy_push", None)
977
if lossy_push is None:
978
raise errors.LossyPushToSameVCS(self, target)
979
return lossy_push(stop_revision)
981
def basis_tree(self):
982
"""Return `Tree` object for last revision."""
983
return self.repository.revision_tree(self.last_revision())
985
def get_parent(self):
986
"""Return the parent location of the branch.
988
This is the default location for pull/missing. The usual
989
pattern is that the user can override it by specifying a
992
parent = self._get_parent_location()
995
# This is an old-format absolute path to a local branch
997
if parent.startswith('/'):
998
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1000
return urlutils.join(self.base[:-1], parent)
1001
except errors.InvalidURLJoin, e:
1002
raise errors.InaccessibleParent(parent, self.base)
1004
def _get_parent_location(self):
1005
raise NotImplementedError(self._get_parent_location)
1007
def _set_config_location(self, name, url, config=None,
1008
make_relative=False):
1010
config = self.get_config()
1014
url = urlutils.relative_url(self.base, url)
1015
config.set_user_option(name, url, warn_masked=True)
1017
def _get_config_location(self, name, config=None):
1019
config = self.get_config()
1020
location = config.get_user_option(name)
1025
def get_child_submit_format(self):
1026
"""Return the preferred format of submissions to this branch."""
1027
return self.get_config().get_user_option("child_submit_format")
1029
def get_submit_branch(self):
1030
"""Return the submit location of the branch.
1032
This is the default location for bundle. The usual
1033
pattern is that the user can override it by specifying a
1036
return self.get_config().get_user_option('submit_branch')
1038
def set_submit_branch(self, location):
1039
"""Return the submit location of the branch.
1041
This is the default location for bundle. The usual
1042
pattern is that the user can override it by specifying a
1045
self.get_config().set_user_option('submit_branch', location,
1048
def get_public_branch(self):
1049
"""Return the public location of the branch.
1051
This is used by merge directives.
1053
return self._get_config_location('public_branch')
1055
def set_public_branch(self, location):
1056
"""Return the submit location of the branch.
1058
This is the default location for bundle. The usual
1059
pattern is that the user can override it by specifying a
1062
self._set_config_location('public_branch', location)
1064
def get_push_location(self):
1065
"""Return the None or the location to push this branch to."""
1066
push_loc = self.get_config().get_user_option('push_location')
1069
def set_push_location(self, location):
1070
"""Set a new push location for this branch."""
1071
raise NotImplementedError(self.set_push_location)
1073
def _run_post_change_branch_tip_hooks(self, old_revno, old_revid):
1074
"""Run the post_change_branch_tip hooks."""
1075
hooks = Branch.hooks['post_change_branch_tip']
1078
new_revno, new_revid = self.last_revision_info()
1079
params = ChangeBranchTipParams(
1080
self, old_revno, new_revno, old_revid, new_revid)
1084
def _run_pre_change_branch_tip_hooks(self, new_revno, new_revid):
1085
"""Run the pre_change_branch_tip hooks."""
1086
hooks = Branch.hooks['pre_change_branch_tip']
1089
old_revno, old_revid = self.last_revision_info()
1090
params = ChangeBranchTipParams(
1091
self, old_revno, new_revno, old_revid, new_revid)
1095
except errors.TipChangeRejected:
1098
exc_info = sys.exc_info()
1099
hook_name = Branch.hooks.get_hook_name(hook)
1100
raise errors.HookFailed(
1101
'pre_change_branch_tip', hook_name, exc_info)
1105
"""Synchronise this branch with the master branch if any.
1107
:return: None or the last_revision pivoted out during the update.
1111
def check_revno(self, revno):
1113
Check whether a revno corresponds to any revision.
1114
Zero (the NULL revision) is considered valid.
1117
self.check_real_revno(revno)
1119
def check_real_revno(self, revno):
1121
Check whether a revno corresponds to a real revision.
1122
Zero (the NULL revision) is considered invalid
1124
if revno < 1 or revno > self.revno():
1125
raise errors.InvalidRevisionNumber(revno)
1128
def clone(self, to_bzrdir, revision_id=None, repository_policy=None):
1129
"""Clone this branch into to_bzrdir preserving all semantic values.
1131
Most API users will want 'create_clone_on_transport', which creates a
1132
new bzrdir and branch on the fly.
1134
revision_id: if not None, the revision history in the new branch will
1135
be truncated to end with revision_id.
1137
result = to_bzrdir.create_branch()
1140
if repository_policy is not None:
1141
repository_policy.configure_branch(result)
1142
self.copy_content_into(result, revision_id=revision_id)
1148
def sprout(self, to_bzrdir, revision_id=None, repository_policy=None):
1149
"""Create a new line of development from the branch, into to_bzrdir.
1151
to_bzrdir controls the branch format.
1153
revision_id: if not None, the revision history in the new branch will
1154
be truncated to end with revision_id.
1156
if (repository_policy is not None and
1157
repository_policy.requires_stacking()):
1158
to_bzrdir._format.require_stacking(_skip_repo=True)
1159
result = to_bzrdir.create_branch()
1162
if repository_policy is not None:
1163
repository_policy.configure_branch(result)
1164
self.copy_content_into(result, revision_id=revision_id)
1165
result.set_parent(self.bzrdir.root_transport.base)
1170
def _synchronize_history(self, destination, revision_id):
1171
"""Synchronize last revision and revision history between branches.
1173
This version is most efficient when the destination is also a
1174
BzrBranch6, but works for BzrBranch5, as long as the destination's
1175
repository contains all the lefthand ancestors of the intended
1176
last_revision. If not, set_last_revision_info will fail.
1178
:param destination: The branch to copy the history into
1179
:param revision_id: The revision-id to truncate history at. May
1180
be None to copy complete history.
1182
source_revno, source_revision_id = self.last_revision_info()
1183
if revision_id is None:
1184
revno, revision_id = source_revno, source_revision_id
1186
graph = self.repository.get_graph()
1188
revno = graph.find_distance_to_null(revision_id,
1189
[(source_revision_id, source_revno)])
1190
except errors.GhostRevisionsHaveNoRevno:
1191
# Default to 1, if we can't find anything else
1193
destination.set_last_revision_info(revno, revision_id)
1196
def copy_content_into(self, destination, revision_id=None):
1197
"""Copy the content of self into destination.
1199
revision_id: if not None, the revision history in the new branch will
1200
be truncated to end with revision_id.
1202
self.update_references(destination)
1203
self._synchronize_history(destination, revision_id)
1205
parent = self.get_parent()
1206
except errors.InaccessibleParent, e:
1207
mutter('parent was not accessible to copy: %s', e)
1210
destination.set_parent(parent)
1211
if self._push_should_merge_tags():
1212
self.tags.merge_to(destination.tags)
1214
def update_references(self, target):
1215
if not getattr(self._format, 'supports_reference_locations', False):
1217
reference_dict = self._get_all_reference_info()
1218
if len(reference_dict) == 0:
1220
old_base = self.base
1221
new_base = target.base
1222
target_reference_dict = target._get_all_reference_info()
1223
for file_id, (tree_path, branch_location) in (
1224
reference_dict.items()):
1225
branch_location = urlutils.rebase_url(branch_location,
1227
target_reference_dict.setdefault(
1228
file_id, (tree_path, branch_location))
1229
target._set_all_reference_info(target_reference_dict)
1232
def check(self, refs):
1233
"""Check consistency of the branch.
1235
In particular this checks that revisions given in the revision-history
1236
do actually match up in the revision graph, and that they're all
1237
present in the repository.
1239
Callers will typically also want to check the repository.
1241
:param refs: Calculated refs for this branch as specified by
1242
branch._get_check_refs()
1243
:return: A BranchCheckResult.
1245
result = BranchCheckResult(self)
1246
last_revno, last_revision_id = self.last_revision_info()
1247
actual_revno = refs[('lefthand-distance', last_revision_id)]
1248
if actual_revno != last_revno:
1249
result.errors.append(errors.BzrCheckError(
1250
'revno does not match len(mainline) %s != %s' % (
1251
last_revno, actual_revno)))
1252
# TODO: We should probably also check that self.revision_history
1253
# matches the repository for older branch formats.
1254
# If looking for the code that cross-checks repository parents against
1255
# the iter_reverse_revision_history output, that is now a repository
1259
def _get_checkout_format(self):
1260
"""Return the most suitable metadir for a checkout of this branch.
1261
Weaves are used if this branch's repository uses weaves.
1263
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
1264
from bzrlib.repofmt import weaverepo
1265
format = bzrdir.BzrDirMetaFormat1()
1266
format.repository_format = weaverepo.RepositoryFormat7()
1268
format = self.repository.bzrdir.checkout_metadir()
1269
format.set_branch_format(self._format)
1272
def create_clone_on_transport(self, to_transport, revision_id=None,
1273
stacked_on=None, create_prefix=False, use_existing_dir=False):
1274
"""Create a clone of this branch and its bzrdir.
1276
:param to_transport: The transport to clone onto.
1277
:param revision_id: The revision id to use as tip in the new branch.
1278
If None the tip is obtained from this branch.
1279
:param stacked_on: An optional URL to stack the clone on.
1280
:param create_prefix: Create any missing directories leading up to
1282
:param use_existing_dir: Use an existing directory if one exists.
1284
# XXX: Fix the bzrdir API to allow getting the branch back from the
1285
# clone call. Or something. 20090224 RBC/spiv.
1286
if revision_id is None:
1287
revision_id = self.last_revision()
1288
dir_to = self.bzrdir.clone_on_transport(to_transport,
1289
revision_id=revision_id, stacked_on=stacked_on,
1290
create_prefix=create_prefix, use_existing_dir=use_existing_dir)
1291
return dir_to.open_branch()
1293
def create_checkout(self, to_location, revision_id=None,
1294
lightweight=False, accelerator_tree=None,
1296
"""Create a checkout of a branch.
1298
:param to_location: The url to produce the checkout at
1299
:param revision_id: The revision to check out
1300
:param lightweight: If True, produce a lightweight checkout, otherwise,
1301
produce a bound branch (heavyweight checkout)
1302
:param accelerator_tree: A tree which can be used for retrieving file
1303
contents more quickly than the revision tree, i.e. a workingtree.
1304
The revision tree will be used for cases where accelerator_tree's
1305
content is different.
1306
:param hardlink: If true, hard-link files from accelerator_tree,
1308
:return: The tree of the created checkout
1310
t = transport.get_transport(to_location)
1313
format = self._get_checkout_format()
1314
checkout = format.initialize_on_transport(t)
1315
from_branch = BranchReferenceFormat().initialize(checkout, self)
1317
format = self._get_checkout_format()
1318
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
1319
to_location, force_new_tree=False, format=format)
1320
checkout = checkout_branch.bzrdir
1321
checkout_branch.bind(self)
1322
# pull up to the specified revision_id to set the initial
1323
# branch tip correctly, and seed it with history.
1324
checkout_branch.pull(self, stop_revision=revision_id)
1326
tree = checkout.create_workingtree(revision_id,
1327
from_branch=from_branch,
1328
accelerator_tree=accelerator_tree,
1330
basis_tree = tree.basis_tree()
1331
basis_tree.lock_read()
1333
for path, file_id in basis_tree.iter_references():
1334
reference_parent = self.reference_parent(file_id, path)
1335
reference_parent.create_checkout(tree.abspath(path),
1336
basis_tree.get_reference_revision(file_id, path),
1343
def reconcile(self, thorough=True):
1344
"""Make sure the data stored in this branch is consistent."""
1345
from bzrlib.reconcile import BranchReconciler
1346
reconciler = BranchReconciler(self, thorough=thorough)
1347
reconciler.reconcile()
1350
def reference_parent(self, file_id, path, possible_transports=None):
1351
"""Return the parent branch for a tree-reference file_id
1352
:param file_id: The file_id of the tree reference
1353
:param path: The path of the file_id in the tree
1354
:return: A branch associated with the file_id
1356
# FIXME should provide multiple branches, based on config
1357
return Branch.open(self.bzrdir.root_transport.clone(path).base,
1358
possible_transports=possible_transports)
1360
def supports_tags(self):
1361
return self._format.supports_tags()
1363
def _check_if_descendant_or_diverged(self, revision_a, revision_b, graph,
1365
"""Ensure that revision_b is a descendant of revision_a.
1367
This is a helper function for update_revisions.
1369
:raises: DivergedBranches if revision_b has diverged from revision_a.
1370
:returns: True if revision_b is a descendant of revision_a.
1372
relation = self._revision_relations(revision_a, revision_b, graph)
1373
if relation == 'b_descends_from_a':
1375
elif relation == 'diverged':
1376
raise errors.DivergedBranches(self, other_branch)
1377
elif relation == 'a_descends_from_b':
1380
raise AssertionError("invalid relation: %r" % (relation,))
1382
def _revision_relations(self, revision_a, revision_b, graph):
1383
"""Determine the relationship between two revisions.
1385
:returns: One of: 'a_descends_from_b', 'b_descends_from_a', 'diverged'
1387
heads = graph.heads([revision_a, revision_b])
1388
if heads == set([revision_b]):
1389
return 'b_descends_from_a'
1390
elif heads == set([revision_a, revision_b]):
1391
# These branches have diverged
1393
elif heads == set([revision_a]):
1394
return 'a_descends_from_b'
1396
raise AssertionError("invalid heads: %r" % (heads,))
1399
class BranchFormat(object):
1400
"""An encapsulation of the initialization and open routines for a format.
1402
Formats provide three things:
1403
* An initialization routine,
1407
Formats are placed in an dict by their format string for reference
1408
during branch opening. Its not required that these be instances, they
1409
can be classes themselves with class methods - it simply depends on
1410
whether state is needed for a given format or not.
1412
Once a format is deprecated, just deprecate the initialize and open
1413
methods on the format class. Do not deprecate the object, as the
1414
object will be created every time regardless.
1417
_default_format = None
1418
"""The default format used for new branches."""
1421
"""The known formats."""
1423
can_set_append_revisions_only = True
1425
def __eq__(self, other):
1426
return self.__class__ is other.__class__
1428
def __ne__(self, other):
1429
return not (self == other)
1432
def find_format(klass, a_bzrdir):
1433
"""Return the format for the branch object in a_bzrdir."""
1435
transport = a_bzrdir.get_branch_transport(None)
1436
format_string = transport.get_bytes("format")
1437
return klass._formats[format_string]
1438
except errors.NoSuchFile:
1439
raise errors.NotBranchError(path=transport.base)
1441
raise errors.UnknownFormatError(format=format_string, kind='branch')
1444
def get_default_format(klass):
1445
"""Return the current default format."""
1446
return klass._default_format
1448
def get_reference(self, a_bzrdir):
1449
"""Get the target reference of the branch in a_bzrdir.
1451
format probing must have been completed before calling
1452
this method - it is assumed that the format of the branch
1453
in a_bzrdir is correct.
1455
:param a_bzrdir: The bzrdir to get the branch data from.
1456
:return: None if the branch is not a reference branch.
1461
def set_reference(self, a_bzrdir, to_branch):
1462
"""Set the target reference of the branch in a_bzrdir.
1464
format probing must have been completed before calling
1465
this method - it is assumed that the format of the branch
1466
in a_bzrdir is correct.
1468
:param a_bzrdir: The bzrdir to set the branch reference for.
1469
:param to_branch: branch that the checkout is to reference
1471
raise NotImplementedError(self.set_reference)
1473
def get_format_string(self):
1474
"""Return the ASCII format string that identifies this format."""
1475
raise NotImplementedError(self.get_format_string)
1477
def get_format_description(self):
1478
"""Return the short format description for this format."""
1479
raise NotImplementedError(self.get_format_description)
1481
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
1483
"""Initialize a branch in a bzrdir, with specified files
1485
:param a_bzrdir: The bzrdir to initialize the branch in
1486
:param utf8_files: The files to create as a list of
1487
(filename, content) tuples
1488
:param set_format: If True, set the format with
1489
self.get_format_string. (BzrBranch4 has its format set
1491
:return: a branch in this format
1493
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
1494
branch_transport = a_bzrdir.get_branch_transport(self)
1496
'metadir': ('lock', lockdir.LockDir),
1497
'branch4': ('branch-lock', lockable_files.TransportLock),
1499
lock_name, lock_class = lock_map[lock_type]
1500
control_files = lockable_files.LockableFiles(branch_transport,
1501
lock_name, lock_class)
1502
control_files.create_lock()
1504
control_files.lock_write()
1505
except errors.LockContention:
1506
if lock_type != 'branch4':
1512
utf8_files += [('format', self.get_format_string())]
1514
for (filename, content) in utf8_files:
1515
branch_transport.put_bytes(
1517
mode=a_bzrdir._get_file_mode())
1520
control_files.unlock()
1521
return self.open(a_bzrdir, _found=True)
1523
def initialize(self, a_bzrdir):
1524
"""Create a branch of this format in a_bzrdir."""
1525
raise NotImplementedError(self.initialize)
1527
def is_supported(self):
1528
"""Is this format supported?
1530
Supported formats can be initialized and opened.
1531
Unsupported formats may not support initialization or committing or
1532
some other features depending on the reason for not being supported.
1536
def make_tags(self, branch):
1537
"""Create a tags object for branch.
1539
This method is on BranchFormat, because BranchFormats are reflected
1540
over the wire via network_name(), whereas full Branch instances require
1541
multiple VFS method calls to operate at all.
1543
The default implementation returns a disabled-tags instance.
1545
Note that it is normal for branch to be a RemoteBranch when using tags
1548
return DisabledTags(branch)
1550
def network_name(self):
1551
"""A simple byte string uniquely identifying this format for RPC calls.
1553
MetaDir branch formats use their disk format string to identify the
1554
repository over the wire. All in one formats such as bzr < 0.8, and
1555
foreign formats like svn/git and hg should use some marker which is
1556
unique and immutable.
1558
raise NotImplementedError(self.network_name)
1560
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1561
"""Return the branch object for a_bzrdir
1563
:param a_bzrdir: A BzrDir that contains a branch.
1564
:param _found: a private parameter, do not use it. It is used to
1565
indicate if format probing has already be done.
1566
:param ignore_fallbacks: when set, no fallback branches will be opened
1567
(if there are any). Default is to open fallbacks.
1569
raise NotImplementedError(self.open)
1572
def register_format(klass, format):
1573
"""Register a metadir format."""
1574
klass._formats[format.get_format_string()] = format
1575
# Metadir formats have a network name of their format string, and get
1576
# registered as class factories.
1577
network_format_registry.register(format.get_format_string(), format.__class__)
1580
def set_default_format(klass, format):
1581
klass._default_format = format
1583
def supports_set_append_revisions_only(self):
1584
"""True if this format supports set_append_revisions_only."""
1587
def supports_stacking(self):
1588
"""True if this format records a stacked-on branch."""
1592
def unregister_format(klass, format):
1593
del klass._formats[format.get_format_string()]
1596
return self.get_format_description().rstrip()
1598
def supports_tags(self):
1599
"""True if this format supports tags stored in the branch"""
1600
return False # by default
1603
class BranchHooks(Hooks):
1604
"""A dictionary mapping hook name to a list of callables for branch hooks.
1606
e.g. ['set_rh'] Is the list of items to be called when the
1607
set_revision_history function is invoked.
1611
"""Create the default hooks.
1613
These are all empty initially, because by default nothing should get
1616
Hooks.__init__(self)
1617
self.create_hook(HookPoint('set_rh',
1618
"Invoked whenever the revision history has been set via "
1619
"set_revision_history. The api signature is (branch, "
1620
"revision_history), and the branch will be write-locked. "
1621
"The set_rh hook can be expensive for bzr to trigger, a better "
1622
"hook to use is Branch.post_change_branch_tip.", (0, 15), None))
1623
self.create_hook(HookPoint('open',
1624
"Called with the Branch object that has been opened after a "
1625
"branch is opened.", (1, 8), None))
1626
self.create_hook(HookPoint('post_push',
1627
"Called after a push operation completes. post_push is called "
1628
"with a bzrlib.branch.BranchPushResult object and only runs in the "
1629
"bzr client.", (0, 15), None))
1630
self.create_hook(HookPoint('post_pull',
1631
"Called after a pull operation completes. post_pull is called "
1632
"with a bzrlib.branch.PullResult object and only runs in the "
1633
"bzr client.", (0, 15), None))
1634
self.create_hook(HookPoint('pre_commit',
1635
"Called after a commit is calculated but before it is is "
1636
"completed. pre_commit is called with (local, master, old_revno, "
1637
"old_revid, future_revno, future_revid, tree_delta, future_tree"
1638
"). old_revid is NULL_REVISION for the first commit to a branch, "
1639
"tree_delta is a TreeDelta object describing changes from the "
1640
"basis revision. hooks MUST NOT modify this delta. "
1641
" future_tree is an in-memory tree obtained from "
1642
"CommitBuilder.revision_tree() and hooks MUST NOT modify this "
1643
"tree.", (0,91), None))
1644
self.create_hook(HookPoint('post_commit',
1645
"Called in the bzr client after a commit has completed. "
1646
"post_commit is called with (local, master, old_revno, old_revid, "
1647
"new_revno, new_revid). old_revid is NULL_REVISION for the first "
1648
"commit to a branch.", (0, 15), None))
1649
self.create_hook(HookPoint('post_uncommit',
1650
"Called in the bzr client after an uncommit completes. "
1651
"post_uncommit is called with (local, master, old_revno, "
1652
"old_revid, new_revno, new_revid) where local is the local branch "
1653
"or None, master is the target branch, and an empty branch "
1654
"receives new_revno of 0, new_revid of None.", (0, 15), None))
1655
self.create_hook(HookPoint('pre_change_branch_tip',
1656
"Called in bzr client and server before a change to the tip of a "
1657
"branch is made. pre_change_branch_tip is called with a "
1658
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1659
"commit, uncommit will all trigger this hook.", (1, 6), None))
1660
self.create_hook(HookPoint('post_change_branch_tip',
1661
"Called in bzr client and server after a change to the tip of a "
1662
"branch is made. post_change_branch_tip is called with a "
1663
"bzrlib.branch.ChangeBranchTipParams. Note that push, pull, "
1664
"commit, uncommit will all trigger this hook.", (1, 4), None))
1665
self.create_hook(HookPoint('transform_fallback_location',
1666
"Called when a stacked branch is activating its fallback "
1667
"locations. transform_fallback_location is called with (branch, "
1668
"url), and should return a new url. Returning the same url "
1669
"allows it to be used as-is, returning a different one can be "
1670
"used to cause the branch to stack on a closer copy of that "
1671
"fallback_location. Note that the branch cannot have history "
1672
"accessing methods called on it during this hook because the "
1673
"fallback locations have not been activated. When there are "
1674
"multiple hooks installed for transform_fallback_location, "
1675
"all are called with the url returned from the previous hook."
1676
"The order is however undefined.", (1, 9), None))
1679
# install the default hooks into the Branch class.
1680
Branch.hooks = BranchHooks()
1683
class ChangeBranchTipParams(object):
1684
"""Object holding parameters passed to *_change_branch_tip hooks.
1686
There are 5 fields that hooks may wish to access:
1688
:ivar branch: the branch being changed
1689
:ivar old_revno: revision number before the change
1690
:ivar new_revno: revision number after the change
1691
:ivar old_revid: revision id before the change
1692
:ivar new_revid: revision id after the change
1694
The revid fields are strings. The revno fields are integers.
1697
def __init__(self, branch, old_revno, new_revno, old_revid, new_revid):
1698
"""Create a group of ChangeBranchTip parameters.
1700
:param branch: The branch being changed.
1701
:param old_revno: Revision number before the change.
1702
:param new_revno: Revision number after the change.
1703
:param old_revid: Tip revision id before the change.
1704
:param new_revid: Tip revision id after the change.
1706
self.branch = branch
1707
self.old_revno = old_revno
1708
self.new_revno = new_revno
1709
self.old_revid = old_revid
1710
self.new_revid = new_revid
1712
def __eq__(self, other):
1713
return self.__dict__ == other.__dict__
1716
return "<%s of %s from (%s, %s) to (%s, %s)>" % (
1717
self.__class__.__name__, self.branch,
1718
self.old_revno, self.old_revid, self.new_revno, self.new_revid)
1721
class BzrBranchFormat4(BranchFormat):
1722
"""Bzr branch format 4.
1725
- a revision-history file.
1726
- a branch-lock lock file [ to be shared with the bzrdir ]
1729
def get_format_description(self):
1730
"""See BranchFormat.get_format_description()."""
1731
return "Branch format 4"
1733
def initialize(self, a_bzrdir):
1734
"""Create a branch of this format in a_bzrdir."""
1735
utf8_files = [('revision-history', ''),
1736
('branch-name', ''),
1738
return self._initialize_helper(a_bzrdir, utf8_files,
1739
lock_type='branch4', set_format=False)
1742
super(BzrBranchFormat4, self).__init__()
1743
self._matchingbzrdir = bzrdir.BzrDirFormat6()
1745
def network_name(self):
1746
"""The network name for this format is the control dirs disk label."""
1747
return self._matchingbzrdir.get_format_string()
1749
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1750
"""See BranchFormat.open()."""
1752
# we are being called directly and must probe.
1753
raise NotImplementedError
1754
return BzrBranch(_format=self,
1755
_control_files=a_bzrdir._control_files,
1757
_repository=a_bzrdir.open_repository())
1760
return "Bazaar-NG branch format 4"
1763
class BranchFormatMetadir(BranchFormat):
1764
"""Common logic for meta-dir based branch formats."""
1766
def _branch_class(self):
1767
"""What class to instantiate on open calls."""
1768
raise NotImplementedError(self._branch_class)
1770
def network_name(self):
1771
"""A simple byte string uniquely identifying this format for RPC calls.
1773
Metadir branch formats use their format string.
1775
return self.get_format_string()
1777
def open(self, a_bzrdir, _found=False, ignore_fallbacks=False):
1778
"""See BranchFormat.open()."""
1780
format = BranchFormat.find_format(a_bzrdir)
1781
if format.__class__ != self.__class__:
1782
raise AssertionError("wrong format %r found for %r" %
1785
transport = a_bzrdir.get_branch_transport(None)
1786
control_files = lockable_files.LockableFiles(transport, 'lock',
1788
return self._branch_class()(_format=self,
1789
_control_files=control_files,
1791
_repository=a_bzrdir.find_repository(),
1792
ignore_fallbacks=ignore_fallbacks)
1793
except errors.NoSuchFile:
1794
raise errors.NotBranchError(path=transport.base)
1797
super(BranchFormatMetadir, self).__init__()
1798
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1799
self._matchingbzrdir.set_branch_format(self)
1801
def supports_tags(self):
1805
class BzrBranchFormat5(BranchFormatMetadir):
1806
"""Bzr branch format 5.
1809
- a revision-history file.
1811
- a lock dir guarding the branch itself
1812
- all of this stored in a branch/ subdirectory
1813
- works with shared repositories.
1815
This format is new in bzr 0.8.
1818
def _branch_class(self):
1821
def get_format_string(self):
1822
"""See BranchFormat.get_format_string()."""
1823
return "Bazaar-NG branch format 5\n"
1825
def get_format_description(self):
1826
"""See BranchFormat.get_format_description()."""
1827
return "Branch format 5"
1829
def initialize(self, a_bzrdir):
1830
"""Create a branch of this format in a_bzrdir."""
1831
utf8_files = [('revision-history', ''),
1832
('branch-name', ''),
1834
return self._initialize_helper(a_bzrdir, utf8_files)
1836
def supports_tags(self):
1840
class BzrBranchFormat6(BranchFormatMetadir):
1841
"""Branch format with last-revision and tags.
1843
Unlike previous formats, this has no explicit revision history. Instead,
1844
this just stores the last-revision, and the left-hand history leading
1845
up to there is the history.
1847
This format was introduced in bzr 0.15
1848
and became the default in 0.91.
1851
def _branch_class(self):
1854
def get_format_string(self):
1855
"""See BranchFormat.get_format_string()."""
1856
return "Bazaar Branch Format 6 (bzr 0.15)\n"
1858
def get_format_description(self):
1859
"""See BranchFormat.get_format_description()."""
1860
return "Branch format 6"
1862
def initialize(self, a_bzrdir):
1863
"""Create a branch of this format in a_bzrdir."""
1864
utf8_files = [('last-revision', '0 null:\n'),
1865
('branch.conf', ''),
1868
return self._initialize_helper(a_bzrdir, utf8_files)
1870
def make_tags(self, branch):
1871
"""See bzrlib.branch.BranchFormat.make_tags()."""
1872
return BasicTags(branch)
1874
def supports_set_append_revisions_only(self):
1878
class BzrBranchFormat8(BranchFormatMetadir):
1879
"""Metadir format supporting storing locations of subtree branches."""
1881
def _branch_class(self):
1884
def get_format_string(self):
1885
"""See BranchFormat.get_format_string()."""
1886
return "Bazaar Branch Format 8 (needs bzr 1.15)\n"
1888
def get_format_description(self):
1889
"""See BranchFormat.get_format_description()."""
1890
return "Branch format 8"
1892
def initialize(self, a_bzrdir):
1893
"""Create a branch of this format in a_bzrdir."""
1894
utf8_files = [('last-revision', '0 null:\n'),
1895
('branch.conf', ''),
1899
return self._initialize_helper(a_bzrdir, utf8_files)
1902
super(BzrBranchFormat8, self).__init__()
1903
self._matchingbzrdir.repository_format = \
1904
RepositoryFormatKnitPack5RichRoot()
1906
def make_tags(self, branch):
1907
"""See bzrlib.branch.BranchFormat.make_tags()."""
1908
return BasicTags(branch)
1910
def supports_set_append_revisions_only(self):
1913
def supports_stacking(self):
1916
supports_reference_locations = True
1919
class BzrBranchFormat7(BzrBranchFormat8):
1920
"""Branch format with last-revision, tags, and a stacked location pointer.
1922
The stacked location pointer is passed down to the repository and requires
1923
a repository format with supports_external_lookups = True.
1925
This format was introduced in bzr 1.6.
1928
def initialize(self, a_bzrdir):
1929
"""Create a branch of this format in a_bzrdir."""
1930
utf8_files = [('last-revision', '0 null:\n'),
1931
('branch.conf', ''),
1934
return self._initialize_helper(a_bzrdir, utf8_files)
1936
def _branch_class(self):
1939
def get_format_string(self):
1940
"""See BranchFormat.get_format_string()."""
1941
return "Bazaar Branch Format 7 (needs bzr 1.6)\n"
1943
def get_format_description(self):
1944
"""See BranchFormat.get_format_description()."""
1945
return "Branch format 7"
1947
def supports_set_append_revisions_only(self):
1950
supports_reference_locations = False
1953
class BranchReferenceFormat(BranchFormat):
1954
"""Bzr branch reference format.
1956
Branch references are used in implementing checkouts, they
1957
act as an alias to the real branch which is at some other url.
1964
def get_format_string(self):
1965
"""See BranchFormat.get_format_string()."""
1966
return "Bazaar-NG Branch Reference Format 1\n"
1968
def get_format_description(self):
1969
"""See BranchFormat.get_format_description()."""
1970
return "Checkout reference format 1"
1972
def get_reference(self, a_bzrdir):
1973
"""See BranchFormat.get_reference()."""
1974
transport = a_bzrdir.get_branch_transport(None)
1975
return transport.get_bytes('location')
1977
def set_reference(self, a_bzrdir, to_branch):
1978
"""See BranchFormat.set_reference()."""
1979
transport = a_bzrdir.get_branch_transport(None)
1980
location = transport.put_bytes('location', to_branch.base)
1982
def initialize(self, a_bzrdir, target_branch=None):
1983
"""Create a branch of this format in a_bzrdir."""
1984
if target_branch is None:
1985
# this format does not implement branch itself, thus the implicit
1986
# creation contract must see it as uninitializable
1987
raise errors.UninitializableFormat(self)
1988
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1989
branch_transport = a_bzrdir.get_branch_transport(self)
1990
branch_transport.put_bytes('location',
1991
target_branch.bzrdir.root_transport.base)
1992
branch_transport.put_bytes('format', self.get_format_string())
1994
a_bzrdir, _found=True,
1995
possible_transports=[target_branch.bzrdir.root_transport])
1998
super(BranchReferenceFormat, self).__init__()
1999
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
2000
self._matchingbzrdir.set_branch_format(self)
2002
def _make_reference_clone_function(format, a_branch):
2003
"""Create a clone() routine for a branch dynamically."""
2004
def clone(to_bzrdir, revision_id=None,
2005
repository_policy=None):
2006
"""See Branch.clone()."""
2007
return format.initialize(to_bzrdir, a_branch)
2008
# cannot obey revision_id limits when cloning a reference ...
2009
# FIXME RBC 20060210 either nuke revision_id for clone, or
2010
# emit some sort of warning/error to the caller ?!
2013
def open(self, a_bzrdir, _found=False, location=None,
2014
possible_transports=None, ignore_fallbacks=False):
2015
"""Return the branch that the branch reference in a_bzrdir points at.
2017
:param a_bzrdir: A BzrDir that contains a branch.
2018
:param _found: a private parameter, do not use it. It is used to
2019
indicate if format probing has already be done.
2020
:param ignore_fallbacks: when set, no fallback branches will be opened
2021
(if there are any). Default is to open fallbacks.
2022
:param location: The location of the referenced branch. If
2023
unspecified, this will be determined from the branch reference in
2025
:param possible_transports: An optional reusable transports list.
2028
format = BranchFormat.find_format(a_bzrdir)
2029
if format.__class__ != self.__class__:
2030
raise AssertionError("wrong format %r found for %r" %
2032
if location is None:
2033
location = self.get_reference(a_bzrdir)
2034
real_bzrdir = bzrdir.BzrDir.open(
2035
location, possible_transports=possible_transports)
2036
result = real_bzrdir.open_branch(ignore_fallbacks=ignore_fallbacks)
2037
# this changes the behaviour of result.clone to create a new reference
2038
# rather than a copy of the content of the branch.
2039
# I did not use a proxy object because that needs much more extensive
2040
# testing, and we are only changing one behaviour at the moment.
2041
# If we decide to alter more behaviours - i.e. the implicit nickname
2042
# then this should be refactored to introduce a tested proxy branch
2043
# and a subclass of that for use in overriding clone() and ....
2045
result.clone = self._make_reference_clone_function(result)
2049
network_format_registry = registry.FormatRegistry()
2050
"""Registry of formats indexed by their network name.
2052
The network name for a branch format is an identifier that can be used when
2053
referring to formats with smart server operations. See
2054
BranchFormat.network_name() for more detail.
2058
# formats which have no format string are not discoverable
2059
# and not independently creatable, so are not registered.
2060
__format5 = BzrBranchFormat5()
2061
__format6 = BzrBranchFormat6()
2062
__format7 = BzrBranchFormat7()
2063
__format8 = BzrBranchFormat8()
2064
BranchFormat.register_format(__format5)
2065
BranchFormat.register_format(BranchReferenceFormat())
2066
BranchFormat.register_format(__format6)
2067
BranchFormat.register_format(__format7)
2068
BranchFormat.register_format(__format8)
2069
BranchFormat.set_default_format(__format7)
2070
_legacy_formats = [BzrBranchFormat4(),
2072
network_format_registry.register(
2073
_legacy_formats[0].network_name(), _legacy_formats[0].__class__)
2076
class BzrBranch(Branch, _RelockDebugMixin):
2077
"""A branch stored in the actual filesystem.
2079
Note that it's "local" in the context of the filesystem; it doesn't
2080
really matter if it's on an nfs/smb/afs/coda/... share, as long as
2081
it's writable, and can be accessed via the normal filesystem API.
2083
:ivar _transport: Transport for file operations on this branch's
2084
control files, typically pointing to the .bzr/branch directory.
2085
:ivar repository: Repository for this branch.
2086
:ivar base: The url of the base directory for this branch; the one
2087
containing the .bzr directory.
2090
def __init__(self, _format=None,
2091
_control_files=None, a_bzrdir=None, _repository=None,
2092
ignore_fallbacks=False):
2093
"""Create new branch object at a particular location."""
2094
if a_bzrdir is None:
2095
raise ValueError('a_bzrdir must be supplied')
2097
self.bzrdir = a_bzrdir
2098
self._base = self.bzrdir.transport.clone('..').base
2099
# XXX: We should be able to just do
2100
# self.base = self.bzrdir.root_transport.base
2101
# but this does not quite work yet -- mbp 20080522
2102
self._format = _format
2103
if _control_files is None:
2104
raise ValueError('BzrBranch _control_files is None')
2105
self.control_files = _control_files
2106
self._transport = _control_files._transport
2107
self.repository = _repository
2108
Branch.__init__(self)
2111
return '%s(%r)' % (self.__class__.__name__, self.base)
2115
def _get_base(self):
2116
"""Returns the directory containing the control directory."""
2119
base = property(_get_base, doc="The URL for the root of this branch.")
2121
def _get_config(self):
2122
return TransportConfig(self._transport, 'branch.conf')
2124
def is_locked(self):
2125
return self.control_files.is_locked()
2127
def lock_write(self, token=None):
2128
if not self.is_locked():
2129
self._note_lock('w')
2130
# All-in-one needs to always unlock/lock.
2131
repo_control = getattr(self.repository, 'control_files', None)
2132
if self.control_files == repo_control or not self.is_locked():
2133
self.repository.lock_write()
2138
return self.control_files.lock_write(token=token)
2141
self.repository.unlock()
2144
def lock_read(self):
2145
if not self.is_locked():
2146
self._note_lock('r')
2147
# All-in-one needs to always unlock/lock.
2148
repo_control = getattr(self.repository, 'control_files', None)
2149
if self.control_files == repo_control or not self.is_locked():
2150
self.repository.lock_read()
2155
self.control_files.lock_read()
2158
self.repository.unlock()
2161
@only_raises(errors.LockNotHeld, errors.LockBroken)
2164
self.control_files.unlock()
2166
# All-in-one needs to always unlock/lock.
2167
repo_control = getattr(self.repository, 'control_files', None)
2168
if (self.control_files == repo_control or
2169
not self.control_files.is_locked()):
2170
self.repository.unlock()
2171
if not self.control_files.is_locked():
2172
# we just released the lock
2173
self._clear_cached_state()
2175
def peek_lock_mode(self):
2176
if self.control_files._lock_count == 0:
2179
return self.control_files._lock_mode
2181
def get_physical_lock_status(self):
2182
return self.control_files.get_physical_lock_status()
2185
def print_file(self, file, revision_id):
2186
"""See Branch.print_file."""
2187
return self.repository.print_file(file, revision_id)
2189
def _write_revision_history(self, history):
2190
"""Factored out of set_revision_history.
2192
This performs the actual writing to disk.
2193
It is intended to be called by BzrBranch5.set_revision_history."""
2194
self._transport.put_bytes(
2195
'revision-history', '\n'.join(history),
2196
mode=self.bzrdir._get_file_mode())
2199
def set_revision_history(self, rev_history):
2200
"""See Branch.set_revision_history."""
2201
if 'evil' in debug.debug_flags:
2202
mutter_callsite(3, "set_revision_history scales with history.")
2203
check_not_reserved_id = _mod_revision.check_not_reserved_id
2204
for rev_id in rev_history:
2205
check_not_reserved_id(rev_id)
2206
if Branch.hooks['post_change_branch_tip']:
2207
# Don't calculate the last_revision_info() if there are no hooks
2209
old_revno, old_revid = self.last_revision_info()
2210
if len(rev_history) == 0:
2211
revid = _mod_revision.NULL_REVISION
2213
revid = rev_history[-1]
2214
self._run_pre_change_branch_tip_hooks(len(rev_history), revid)
2215
self._write_revision_history(rev_history)
2216
self._clear_cached_state()
2217
self._cache_revision_history(rev_history)
2218
for hook in Branch.hooks['set_rh']:
2219
hook(self, rev_history)
2220
if Branch.hooks['post_change_branch_tip']:
2221
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2223
def _synchronize_history(self, destination, revision_id):
2224
"""Synchronize last revision and revision history between branches.
2226
This version is most efficient when the destination is also a
2227
BzrBranch5, but works for BzrBranch6 as long as the revision
2228
history is the true lefthand parent history, and all of the revisions
2229
are in the destination's repository. If not, set_revision_history
2232
:param destination: The branch to copy the history into
2233
:param revision_id: The revision-id to truncate history at. May
2234
be None to copy complete history.
2236
if not isinstance(destination._format, BzrBranchFormat5):
2237
super(BzrBranch, self)._synchronize_history(
2238
destination, revision_id)
2240
if revision_id == _mod_revision.NULL_REVISION:
2243
new_history = self.revision_history()
2244
if revision_id is not None and new_history != []:
2246
new_history = new_history[:new_history.index(revision_id) + 1]
2248
rev = self.repository.get_revision(revision_id)
2249
new_history = rev.get_history(self.repository)[1:]
2250
destination.set_revision_history(new_history)
2253
def set_last_revision_info(self, revno, revision_id):
2254
"""Set the last revision of this branch.
2256
The caller is responsible for checking that the revno is correct
2257
for this revision id.
2259
It may be possible to set the branch last revision to an id not
2260
present in the repository. However, branches can also be
2261
configured to check constraints on history, in which case this may not
2264
revision_id = _mod_revision.ensure_null(revision_id)
2265
# this old format stores the full history, but this api doesn't
2266
# provide it, so we must generate, and might as well check it's
2268
history = self._lefthand_history(revision_id)
2269
if len(history) != revno:
2270
raise AssertionError('%d != %d' % (len(history), revno))
2271
self.set_revision_history(history)
2273
def _gen_revision_history(self):
2274
history = self._transport.get_bytes('revision-history').split('\n')
2275
if history[-1:] == ['']:
2276
# There shouldn't be a trailing newline, but just in case.
2281
def generate_revision_history(self, revision_id, last_rev=None,
2283
"""Create a new revision history that will finish with revision_id.
2285
:param revision_id: the new tip to use.
2286
:param last_rev: The previous last_revision. If not None, then this
2287
must be a ancestory of revision_id, or DivergedBranches is raised.
2288
:param other_branch: The other branch that DivergedBranches should
2289
raise with respect to.
2291
self.set_revision_history(self._lefthand_history(revision_id,
2292
last_rev, other_branch))
2294
def basis_tree(self):
2295
"""See Branch.basis_tree."""
2296
return self.repository.revision_tree(self.last_revision())
2298
def _get_parent_location(self):
2299
_locs = ['parent', 'pull', 'x-pull']
2302
return self._transport.get_bytes(l).strip('\n')
2303
except errors.NoSuchFile:
2307
def _basic_push(self, target, overwrite, stop_revision):
2308
"""Basic implementation of push without bound branches or hooks.
2310
Must be called with source read locked and target write locked.
2312
result = BranchPushResult()
2313
result.source_branch = self
2314
result.target_branch = target
2315
result.old_revno, result.old_revid = target.last_revision_info()
2316
self.update_references(target)
2317
if result.old_revid != self.last_revision():
2318
# We assume that during 'push' this repository is closer than
2320
graph = self.repository.get_graph(target.repository)
2321
target.update_revisions(self, stop_revision,
2322
overwrite=overwrite, graph=graph)
2323
if self._push_should_merge_tags():
2324
result.tag_conflicts = self.tags.merge_to(target.tags,
2326
result.new_revno, result.new_revid = target.last_revision_info()
2329
def get_stacked_on_url(self):
2330
raise errors.UnstackableBranchFormat(self._format, self.base)
2332
def set_push_location(self, location):
2333
"""See Branch.set_push_location."""
2334
self.get_config().set_user_option(
2335
'push_location', location,
2336
store=_mod_config.STORE_LOCATION_NORECURSE)
2338
def _set_parent_location(self, url):
2340
self._transport.delete('parent')
2342
self._transport.put_bytes('parent', url + '\n',
2343
mode=self.bzrdir._get_file_mode())
2346
class BzrBranch5(BzrBranch):
2347
"""A format 5 branch. This supports new features over plain branches.
2349
It has support for a master_branch which is the data for bound branches.
2352
def get_bound_location(self):
2354
return self._transport.get_bytes('bound')[:-1]
2355
except errors.NoSuchFile:
2359
def get_master_branch(self, possible_transports=None):
2360
"""Return the branch we are bound to.
2362
:return: Either a Branch, or None
2364
This could memoise the branch, but if thats done
2365
it must be revalidated on each new lock.
2366
So for now we just don't memoise it.
2367
# RBC 20060304 review this decision.
2369
bound_loc = self.get_bound_location()
2373
return Branch.open(bound_loc,
2374
possible_transports=possible_transports)
2375
except (errors.NotBranchError, errors.ConnectionError), e:
2376
raise errors.BoundBranchConnectionFailure(
2380
def set_bound_location(self, location):
2381
"""Set the target where this branch is bound to.
2383
:param location: URL to the target branch
2386
self._transport.put_bytes('bound', location+'\n',
2387
mode=self.bzrdir._get_file_mode())
2390
self._transport.delete('bound')
2391
except errors.NoSuchFile:
2396
def bind(self, other):
2397
"""Bind this branch to the branch other.
2399
This does not push or pull data between the branches, though it does
2400
check for divergence to raise an error when the branches are not
2401
either the same, or one a prefix of the other. That behaviour may not
2402
be useful, so that check may be removed in future.
2404
:param other: The branch to bind to
2407
# TODO: jam 20051230 Consider checking if the target is bound
2408
# It is debatable whether you should be able to bind to
2409
# a branch which is itself bound.
2410
# Committing is obviously forbidden,
2411
# but binding itself may not be.
2412
# Since we *have* to check at commit time, we don't
2413
# *need* to check here
2415
# we want to raise diverged if:
2416
# last_rev is not in the other_last_rev history, AND
2417
# other_last_rev is not in our history, and do it without pulling
2419
self.set_bound_location(other.base)
2423
"""If bound, unbind"""
2424
return self.set_bound_location(None)
2427
def update(self, possible_transports=None):
2428
"""Synchronise this branch with the master branch if any.
2430
:return: None or the last_revision that was pivoted out during the
2433
master = self.get_master_branch(possible_transports)
2434
if master is not None:
2435
old_tip = _mod_revision.ensure_null(self.last_revision())
2436
self.pull(master, overwrite=True)
2437
if self.repository.get_graph().is_ancestor(old_tip,
2438
_mod_revision.ensure_null(self.last_revision())):
2444
class BzrBranch8(BzrBranch5):
2445
"""A branch that stores tree-reference locations."""
2447
def _open_hook(self):
2448
if self._ignore_fallbacks:
2451
url = self.get_stacked_on_url()
2452
except (errors.UnstackableRepositoryFormat, errors.NotStacked,
2453
errors.UnstackableBranchFormat):
2456
for hook in Branch.hooks['transform_fallback_location']:
2457
url = hook(self, url)
2459
hook_name = Branch.hooks.get_hook_name(hook)
2460
raise AssertionError(
2461
"'transform_fallback_location' hook %s returned "
2462
"None, not a URL." % hook_name)
2463
self._activate_fallback_location(url)
2465
def __init__(self, *args, **kwargs):
2466
self._ignore_fallbacks = kwargs.get('ignore_fallbacks', False)
2467
super(BzrBranch8, self).__init__(*args, **kwargs)
2468
self._last_revision_info_cache = None
2469
self._reference_info = None
2471
def _clear_cached_state(self):
2472
super(BzrBranch8, self)._clear_cached_state()
2473
self._last_revision_info_cache = None
2474
self._reference_info = None
2476
def _last_revision_info(self):
2477
revision_string = self._transport.get_bytes('last-revision')
2478
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
2479
revision_id = cache_utf8.get_cached_utf8(revision_id)
2481
return revno, revision_id
2483
def _write_last_revision_info(self, revno, revision_id):
2484
"""Simply write out the revision id, with no checks.
2486
Use set_last_revision_info to perform this safely.
2488
Does not update the revision_history cache.
2489
Intended to be called by set_last_revision_info and
2490
_write_revision_history.
2492
revision_id = _mod_revision.ensure_null(revision_id)
2493
out_string = '%d %s\n' % (revno, revision_id)
2494
self._transport.put_bytes('last-revision', out_string,
2495
mode=self.bzrdir._get_file_mode())
2498
def set_last_revision_info(self, revno, revision_id):
2499
revision_id = _mod_revision.ensure_null(revision_id)
2500
old_revno, old_revid = self.last_revision_info()
2501
if self._get_append_revisions_only():
2502
self._check_history_violation(revision_id)
2503
self._run_pre_change_branch_tip_hooks(revno, revision_id)
2504
self._write_last_revision_info(revno, revision_id)
2505
self._clear_cached_state()
2506
self._last_revision_info_cache = revno, revision_id
2507
self._run_post_change_branch_tip_hooks(old_revno, old_revid)
2509
def _synchronize_history(self, destination, revision_id):
2510
"""Synchronize last revision and revision history between branches.
2512
:see: Branch._synchronize_history
2514
# XXX: The base Branch has a fast implementation of this method based
2515
# on set_last_revision_info, but BzrBranch/BzrBranch5 have a slower one
2516
# that uses set_revision_history. This class inherits from BzrBranch5,
2517
# but wants the fast implementation, so it calls
2518
# Branch._synchronize_history directly.
2519
Branch._synchronize_history(self, destination, revision_id)
2521
def _check_history_violation(self, revision_id):
2522
last_revision = _mod_revision.ensure_null(self.last_revision())
2523
if _mod_revision.is_null(last_revision):
2525
if last_revision not in self._lefthand_history(revision_id):
2526
raise errors.AppendRevisionsOnlyViolation(self.base)
2528
def _gen_revision_history(self):
2529
"""Generate the revision history from last revision
2531
last_revno, last_revision = self.last_revision_info()
2532
self._extend_partial_history(stop_index=last_revno-1)
2533
return list(reversed(self._partial_revision_history_cache))
2535
def _write_revision_history(self, history):
2536
"""Factored out of set_revision_history.
2538
This performs the actual writing to disk, with format-specific checks.
2539
It is intended to be called by BzrBranch5.set_revision_history.
2541
if len(history) == 0:
2542
last_revision = 'null:'
2544
if history != self._lefthand_history(history[-1]):
2545
raise errors.NotLefthandHistory(history)
2546
last_revision = history[-1]
2547
if self._get_append_revisions_only():
2548
self._check_history_violation(last_revision)
2549
self._write_last_revision_info(len(history), last_revision)
2552
def _set_parent_location(self, url):
2553
"""Set the parent branch"""
2554
self._set_config_location('parent_location', url, make_relative=True)
2557
def _get_parent_location(self):
2558
"""Set the parent branch"""
2559
return self._get_config_location('parent_location')
2562
def _set_all_reference_info(self, info_dict):
2563
"""Replace all reference info stored in a branch.
2565
:param info_dict: A dict of {file_id: (tree_path, branch_location)}
2568
writer = rio.RioWriter(s)
2569
for key, (tree_path, branch_location) in info_dict.iteritems():
2570
stanza = rio.Stanza(file_id=key, tree_path=tree_path,
2571
branch_location=branch_location)
2572
writer.write_stanza(stanza)
2573
self._transport.put_bytes('references', s.getvalue())
2574
self._reference_info = info_dict
2577
def _get_all_reference_info(self):
2578
"""Return all the reference info stored in a branch.
2580
:return: A dict of {file_id: (tree_path, branch_location)}
2582
if self._reference_info is not None:
2583
return self._reference_info
2584
rio_file = self._transport.get('references')
2586
stanzas = rio.read_stanzas(rio_file)
2587
info_dict = dict((s['file_id'], (s['tree_path'],
2588
s['branch_location'])) for s in stanzas)
2591
self._reference_info = info_dict
2594
def set_reference_info(self, file_id, tree_path, branch_location):
2595
"""Set the branch location to use for a tree reference.
2597
:param file_id: The file-id of the tree reference.
2598
:param tree_path: The path of the tree reference in the tree.
2599
:param branch_location: The location of the branch to retrieve tree
2602
info_dict = self._get_all_reference_info()
2603
info_dict[file_id] = (tree_path, branch_location)
2604
if None in (tree_path, branch_location):
2605
if tree_path is not None:
2606
raise ValueError('tree_path must be None when branch_location'
2608
if branch_location is not None:
2609
raise ValueError('branch_location must be None when tree_path'
2611
del info_dict[file_id]
2612
self._set_all_reference_info(info_dict)
2614
def get_reference_info(self, file_id):
2615
"""Get the tree_path and branch_location for a tree reference.
2617
:return: a tuple of (tree_path, branch_location)
2619
return self._get_all_reference_info().get(file_id, (None, None))
2621
def reference_parent(self, file_id, path, possible_transports=None):
2622
"""Return the parent branch for a tree-reference file_id.
2624
:param file_id: The file_id of the tree reference
2625
:param path: The path of the file_id in the tree
2626
:return: A branch associated with the file_id
2628
branch_location = self.get_reference_info(file_id)[1]
2629
if branch_location is None:
2630
return Branch.reference_parent(self, file_id, path,
2631
possible_transports)
2632
branch_location = urlutils.join(self.base, branch_location)
2633
return Branch.open(branch_location,
2634
possible_transports=possible_transports)
2636
def set_push_location(self, location):
2637
"""See Branch.set_push_location."""
2638
self._set_config_location('push_location', location)
2640
def set_bound_location(self, location):
2641
"""See Branch.set_push_location."""
2643
config = self.get_config()
2644
if location is None:
2645
if config.get_user_option('bound') != 'True':
2648
config.set_user_option('bound', 'False', warn_masked=True)
2651
self._set_config_location('bound_location', location,
2653
config.set_user_option('bound', 'True', warn_masked=True)
2656
def _get_bound_location(self, bound):
2657
"""Return the bound location in the config file.
2659
Return None if the bound parameter does not match"""
2660
config = self.get_config()
2661
config_bound = (config.get_user_option('bound') == 'True')
2662
if config_bound != bound:
2664
return self._get_config_location('bound_location', config=config)
2666
def get_bound_location(self):
2667
"""See Branch.set_push_location."""
2668
return self._get_bound_location(True)
2670
def get_old_bound_location(self):
2671
"""See Branch.get_old_bound_location"""
2672
return self._get_bound_location(False)
2674
def get_stacked_on_url(self):
2675
# you can always ask for the URL; but you might not be able to use it
2676
# if the repo can't support stacking.
2677
## self._check_stackable_repo()
2678
stacked_url = self._get_config_location('stacked_on_location')
2679
if stacked_url is None:
2680
raise errors.NotStacked(self)
2683
def _get_append_revisions_only(self):
2684
value = self.get_config().get_user_option('append_revisions_only')
2685
return value == 'True'
2688
def generate_revision_history(self, revision_id, last_rev=None,
2690
"""See BzrBranch5.generate_revision_history"""
2691
history = self._lefthand_history(revision_id, last_rev, other_branch)
2692
revno = len(history)
2693
self.set_last_revision_info(revno, revision_id)
2696
def get_rev_id(self, revno, history=None):
2697
"""Find the revision id of the specified revno."""
2699
return _mod_revision.NULL_REVISION
2701
last_revno, last_revision_id = self.last_revision_info()
2702
if revno <= 0 or revno > last_revno:
2703
raise errors.NoSuchRevision(self, revno)
2705
if history is not None:
2706
return history[revno - 1]
2708
index = last_revno - revno
2709
if len(self._partial_revision_history_cache) <= index:
2710
self._extend_partial_history(stop_index=index)
2711
if len(self._partial_revision_history_cache) > index:
2712
return self._partial_revision_history_cache[index]
2714
raise errors.NoSuchRevision(self, revno)
2717
def revision_id_to_revno(self, revision_id):
2718
"""Given a revision id, return its revno"""
2719
if _mod_revision.is_null(revision_id):
2722
index = self._partial_revision_history_cache.index(revision_id)
2724
self._extend_partial_history(stop_revision=revision_id)
2725
index = len(self._partial_revision_history_cache) - 1
2726
if self._partial_revision_history_cache[index] != revision_id:
2727
raise errors.NoSuchRevision(self, revision_id)
2728
return self.revno() - index
2731
class BzrBranch7(BzrBranch8):
2732
"""A branch with support for a fallback repository."""
2734
def set_reference_info(self, file_id, tree_path, branch_location):
2735
Branch.set_reference_info(self, file_id, tree_path, branch_location)
2737
def get_reference_info(self, file_id):
2738
Branch.get_reference_info(self, file_id)
2740
def reference_parent(self, file_id, path, possible_transports=None):
2741
return Branch.reference_parent(self, file_id, path,
2742
possible_transports)
2745
class BzrBranch6(BzrBranch7):
2746
"""See BzrBranchFormat6 for the capabilities of this branch.
2748
This subclass of BzrBranch7 disables the new features BzrBranch7 added,
2752
def get_stacked_on_url(self):
2753
raise errors.UnstackableBranchFormat(self._format, self.base)
2756
######################################################################
2757
# results of operations
2760
class _Result(object):
2762
def _show_tag_conficts(self, to_file):
2763
if not getattr(self, 'tag_conflicts', None):
2765
to_file.write('Conflicting tags:\n')
2766
for name, value1, value2 in self.tag_conflicts:
2767
to_file.write(' %s\n' % (name, ))
2770
class PullResult(_Result):
2771
"""Result of a Branch.pull operation.
2773
:ivar old_revno: Revision number before pull.
2774
:ivar new_revno: Revision number after pull.
2775
:ivar old_revid: Tip revision id before pull.
2776
:ivar new_revid: Tip revision id after pull.
2777
:ivar source_branch: Source (local) branch object. (read locked)
2778
:ivar master_branch: Master branch of the target, or the target if no
2780
:ivar local_branch: target branch if there is a Master, else None
2781
:ivar target_branch: Target/destination branch object. (write locked)
2782
:ivar tag_conflicts: A list of tag conflicts, see BasicTags.merge_to
2786
# DEPRECATED: pull used to return the change in revno
2787
return self.new_revno - self.old_revno
2789
def report(self, to_file):
2791
if self.old_revid == self.new_revid:
2792
to_file.write('No revisions to pull.\n')
2794
to_file.write('Now on revision %d.\n' % self.new_revno)
2795
self._show_tag_conficts(to_file)
2798
class BranchPushResult(_Result):
2799
"""Result of a Branch.push operation.
2801
:ivar old_revno: Revision number (eg 10) of the target before push.
2802
:ivar new_revno: Revision number (eg 12) of the target after push.
2803
:ivar old_revid: Tip revision id (eg joe@foo.com-1234234-aoeua34) of target
2805
:ivar new_revid: Tip revision id (eg joe@foo.com-5676566-boa234a) of target
2807
:ivar source_branch: Source branch object that the push was from. This is
2808
read locked, and generally is a local (and thus low latency) branch.
2809
:ivar master_branch: If target is a bound branch, the master branch of
2810
target, or target itself. Always write locked.
2811
:ivar target_branch: The direct Branch where data is being sent (write
2813
:ivar local_branch: If the target is a bound branch this will be the
2814
target, otherwise it will be None.
2818
# DEPRECATED: push used to return the change in revno
2819
return self.new_revno - self.old_revno
2821
def report(self, to_file):
2822
"""Write a human-readable description of the result."""
2823
if self.old_revid == self.new_revid:
2824
note('No new revisions to push.')
2826
note('Pushed up to revision %d.' % self.new_revno)
2827
self._show_tag_conficts(to_file)
2830
class BranchCheckResult(object):
2831
"""Results of checking branch consistency.
2836
def __init__(self, branch):
2837
self.branch = branch
2840
def report_results(self, verbose):
2841
"""Report the check results via trace.note.
2843
:param verbose: Requests more detailed display of what was checked,
2846
note('checked branch %s format %s', self.branch.base,
2847
self.branch._format)
2848
for error in self.errors:
2849
note('found error:%s', error)
2852
class Converter5to6(object):
2853
"""Perform an in-place upgrade of format 5 to format 6"""
2855
def convert(self, branch):
2856
# Data for 5 and 6 can peacefully coexist.
2857
format = BzrBranchFormat6()
2858
new_branch = format.open(branch.bzrdir, _found=True)
2860
# Copy source data into target
2861
new_branch._write_last_revision_info(*branch.last_revision_info())
2862
new_branch.set_parent(branch.get_parent())
2863
new_branch.set_bound_location(branch.get_bound_location())
2864
new_branch.set_push_location(branch.get_push_location())
2866
# New branch has no tags by default
2867
new_branch.tags._set_tag_dict({})
2869
# Copying done; now update target format
2870
new_branch._transport.put_bytes('format',
2871
format.get_format_string(),
2872
mode=new_branch.bzrdir._get_file_mode())
2874
# Clean up old files
2875
new_branch._transport.delete('revision-history')
2877
branch.set_parent(None)
2878
except errors.NoSuchFile:
2880
branch.set_bound_location(None)
2883
class Converter6to7(object):
2884
"""Perform an in-place upgrade of format 6 to format 7"""
2886
def convert(self, branch):
2887
format = BzrBranchFormat7()
2888
branch._set_config_location('stacked_on_location', '')
2889
# update target format
2890
branch._transport.put_bytes('format', format.get_format_string())
2893
class Converter7to8(object):
2894
"""Perform an in-place upgrade of format 6 to format 7"""
2896
def convert(self, branch):
2897
format = BzrBranchFormat8()
2898
branch._transport.put_bytes('references', '')
2899
# update target format
2900
branch._transport.put_bytes('format', format.get_format_string())
2903
def _run_with_write_locked_target(target, callable, *args, **kwargs):
2904
"""Run ``callable(*args, **kwargs)``, write-locking target for the
2907
_run_with_write_locked_target will attempt to release the lock it acquires.
2909
If an exception is raised by callable, then that exception *will* be
2910
propagated, even if the unlock attempt raises its own error. Thus
2911
_run_with_write_locked_target should be preferred to simply doing::
2915
return callable(*args, **kwargs)
2920
# This is very similar to bzrlib.decorators.needs_write_lock. Perhaps they
2921
# should share code?
2924
result = callable(*args, **kwargs)
2926
exc_info = sys.exc_info()
2930
raise exc_info[0], exc_info[1], exc_info[2]
2936
class InterBranch(InterObject):
2937
"""This class represents operations taking place between two branches.
2939
Its instances have methods like pull() and push() and contain
2940
references to the source and target repositories these operations
2941
can be carried out on.
2945
"""The available optimised InterBranch types."""
2948
def _get_branch_formats_to_test():
2949
"""Return a tuple with the Branch formats to use when testing."""
2950
raise NotImplementedError(InterBranch._get_branch_formats_to_test)
2952
def pull(self, overwrite=False, stop_revision=None,
2953
possible_transports=None, local=False):
2954
"""Mirror source into target branch.
2956
The target branch is considered to be 'local', having low latency.
2958
:returns: PullResult instance
2960
raise NotImplementedError(self.pull)
2962
def update_revisions(self, stop_revision=None, overwrite=False,
2964
"""Pull in new perfect-fit revisions.
2966
:param stop_revision: Updated until the given revision
2967
:param overwrite: Always set the branch pointer, rather than checking
2968
to see if it is a proper descendant.
2969
:param graph: A Graph object that can be used to query history
2970
information. This can be None.
2973
raise NotImplementedError(self.update_revisions)
2975
def push(self, overwrite=False, stop_revision=None,
2976
_override_hook_source_branch=None):
2977
"""Mirror the source branch into the target branch.
2979
The source branch is considered to be 'local', having low latency.
2981
raise NotImplementedError(self.push)
2984
class GenericInterBranch(InterBranch):
2985
"""InterBranch implementation that uses public Branch functions.
2989
def _get_branch_formats_to_test():
2990
return BranchFormat._default_format, BranchFormat._default_format
2992
def update_revisions(self, stop_revision=None, overwrite=False,
2994
"""See InterBranch.update_revisions()."""
2995
self.source.lock_read()
2997
other_revno, other_last_revision = self.source.last_revision_info()
2998
stop_revno = None # unknown
2999
if stop_revision is None:
3000
stop_revision = other_last_revision
3001
if _mod_revision.is_null(stop_revision):
3002
# if there are no commits, we're done.
3004
stop_revno = other_revno
3006
# what's the current last revision, before we fetch [and change it
3008
last_rev = _mod_revision.ensure_null(self.target.last_revision())
3009
# we fetch here so that we don't process data twice in the common
3010
# case of having something to pull, and so that the check for
3011
# already merged can operate on the just fetched graph, which will
3012
# be cached in memory.
3013
self.target.fetch(self.source, stop_revision)
3014
# Check to see if one is an ancestor of the other
3017
graph = self.target.repository.get_graph()
3018
if self.target._check_if_descendant_or_diverged(
3019
stop_revision, last_rev, graph, self.source):
3020
# stop_revision is a descendant of last_rev, but we aren't
3021
# overwriting, so we're done.
3023
if stop_revno is None:
3025
graph = self.target.repository.get_graph()
3026
this_revno, this_last_revision = \
3027
self.target.last_revision_info()
3028
stop_revno = graph.find_distance_to_null(stop_revision,
3029
[(other_last_revision, other_revno),
3030
(this_last_revision, this_revno)])
3031
self.target.set_last_revision_info(stop_revno, stop_revision)
3033
self.source.unlock()
3035
def pull(self, overwrite=False, stop_revision=None,
3036
possible_transports=None, _hook_master=None, run_hooks=True,
3037
_override_hook_target=None, local=False):
3040
:param _hook_master: Private parameter - set the branch to
3041
be supplied as the master to pull hooks.
3042
:param run_hooks: Private parameter - if false, this branch
3043
is being called because it's the master of the primary branch,
3044
so it should not run its hooks.
3045
:param _override_hook_target: Private parameter - set the branch to be
3046
supplied as the target_branch to pull hooks.
3047
:param local: Only update the local branch, and not the bound branch.
3049
# This type of branch can't be bound.
3051
raise errors.LocalRequiresBoundBranch()
3052
result = PullResult()
3053
result.source_branch = self.source
3054
if _override_hook_target is None:
3055
result.target_branch = self.target
3057
result.target_branch = _override_hook_target
3058
self.source.lock_read()
3060
# We assume that during 'pull' the target repository is closer than
3062
self.source.update_references(self.target)
3063
graph = self.target.repository.get_graph(self.source.repository)
3064
# TODO: Branch formats should have a flag that indicates
3065
# that revno's are expensive, and pull() should honor that flag.
3067
result.old_revno, result.old_revid = \
3068
self.target.last_revision_info()
3069
self.target.update_revisions(self.source, stop_revision,
3070
overwrite=overwrite, graph=graph)
3071
# TODO: The old revid should be specified when merging tags,
3072
# so a tags implementation that versions tags can only
3073
# pull in the most recent changes. -- JRV20090506
3074
result.tag_conflicts = self.source.tags.merge_to(self.target.tags,
3076
result.new_revno, result.new_revid = self.target.last_revision_info()
3078
result.master_branch = _hook_master
3079
result.local_branch = result.target_branch
3081
result.master_branch = result.target_branch
3082
result.local_branch = None
3084
for hook in Branch.hooks['post_pull']:
3087
self.source.unlock()
3090
def push(self, overwrite=False, stop_revision=None,
3091
_override_hook_source_branch=None):
3092
"""See InterBranch.push.
3094
This is the basic concrete implementation of push()
3096
:param _override_hook_source_branch: If specified, run
3097
the hooks passing this Branch as the source, rather than self.
3098
This is for use of RemoteBranch, where push is delegated to the
3099
underlying vfs-based Branch.
3101
# TODO: Public option to disable running hooks - should be trivial but
3103
self.source.lock_read()
3105
return _run_with_write_locked_target(
3106
self.target, self._push_with_bound_branches, overwrite,
3108
_override_hook_source_branch=_override_hook_source_branch)
3110
self.source.unlock()
3112
def _push_with_bound_branches(self, overwrite, stop_revision,
3113
_override_hook_source_branch=None):
3114
"""Push from source into target, and into target's master if any.
3117
if _override_hook_source_branch:
3118
result.source_branch = _override_hook_source_branch
3119
for hook in Branch.hooks['post_push']:
3122
bound_location = self.target.get_bound_location()
3123
if bound_location and self.target.base != bound_location:
3124
# there is a master branch.
3126
# XXX: Why the second check? Is it even supported for a branch to
3127
# be bound to itself? -- mbp 20070507
3128
master_branch = self.target.get_master_branch()
3129
master_branch.lock_write()
3131
# push into the master from the source branch.
3132
self.source._basic_push(master_branch, overwrite, stop_revision)
3133
# and push into the target branch from the source. Note that we
3134
# push from the source branch again, because its considered the
3135
# highest bandwidth repository.
3136
result = self.source._basic_push(self.target, overwrite,
3138
result.master_branch = master_branch
3139
result.local_branch = self.target
3143
master_branch.unlock()
3146
result = self.source._basic_push(self.target, overwrite,
3148
# TODO: Why set master_branch and local_branch if there's no
3149
# binding? Maybe cleaner to just leave them unset? -- mbp
3151
result.master_branch = self.target
3152
result.local_branch = None
3157
def is_compatible(self, source, target):
3158
# GenericBranch uses the public API, so always compatible
3162
class InterToBranch5(GenericInterBranch):
3165
def _get_branch_formats_to_test():
3166
return BranchFormat._default_format, BzrBranchFormat5()
3168
def pull(self, overwrite=False, stop_revision=None,
3169
possible_transports=None, run_hooks=True,
3170
_override_hook_target=None, local=False):
3171
"""Pull from source into self, updating my master if any.
3173
:param run_hooks: Private parameter - if false, this branch
3174
is being called because it's the master of the primary branch,
3175
so it should not run its hooks.
3177
bound_location = self.target.get_bound_location()
3178
if local and not bound_location:
3179
raise errors.LocalRequiresBoundBranch()
3180
master_branch = None
3181
if not local and bound_location and self.source.base != bound_location:
3182
# not pulling from master, so we need to update master.
3183
master_branch = self.target.get_master_branch(possible_transports)
3184
master_branch.lock_write()
3187
# pull from source into master.
3188
master_branch.pull(self.source, overwrite, stop_revision,
3190
return super(InterToBranch5, self).pull(overwrite,
3191
stop_revision, _hook_master=master_branch,
3192
run_hooks=run_hooks,
3193
_override_hook_target=_override_hook_target)
3196
master_branch.unlock()
3199
InterBranch.register_optimiser(GenericInterBranch)
3200
InterBranch.register_optimiser(InterToBranch5)
added
removed
bzrlib/branch.py
