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# Copyright (C) 2005 Canonical Ltd
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# Copyright (C) 2005, 2006 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from copy import deepcopy
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from cStringIO import StringIO
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from unittest import TestSuite
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from warnings import warn
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from cStringIO import StringIO
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from bzrlib.inventory import InventoryEntry
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import bzrlib.inventory as inventory
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import (isdir, quotefn, compact_date, rand_bytes,
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rename, splitpath, sha_file, appendpath,
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import bzrlib.bzrdir as bzrdir
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from bzrlib.config import TreeConfig
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.delta import compare_trees
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import bzrlib.errors as errors
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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NoSuchRevision, HistoryMissing, NotBranchError,
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DivergedBranches, LockError, UnlistableStore,
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UnlistableBranch, NoSuchFile, NotVersionedError)
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DivergedBranches, LockError,
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UninitializableFormat,
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UnlistableBranch, NoSuchFile, NotVersionedError,
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import bzrlib.inventory as inventory
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from bzrlib.inventory import Inventory
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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from bzrlib.osutils import (isdir, quotefn,
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rename, splitpath, sha_file,
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file_kind, abspath, normpath, pathjoin,
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision, is_ancestor, get_intervening_revisions
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from bzrlib.delta import compare_trees
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from bzrlib.trace import mutter, note
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.inventory import Inventory
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from bzrlib.repository import Repository
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from bzrlib.revision import (
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get_intervening_revisions,
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from bzrlib.store import copy_all
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from bzrlib.store.compressed_text import CompressedTextStore
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from bzrlib.store.text import TextStore
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from bzrlib.store.weave import WeaveStore
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from bzrlib.testament import Testament
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from bzrlib.symbol_versioning import *
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import bzrlib.transactions as transactions
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from bzrlib.transport import Transport, get_transport
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from bzrlib.tree import EmptyTree, RevisionTree
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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-NG branch, format 6\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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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.
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def find_branch(*ignored, **ignored_too):
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# XXX: leave this here for about one release, then remove it
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raise NotImplementedError('find_branch() is not supported anymore, '
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'please use one of the new branch constructors')
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def needs_read_lock(unbound):
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"""Decorate unbound to take out and release a read lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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def needs_write_lock(unbound):
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"""Decorate unbound to take out and release a write lock."""
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def decorated(self, *args, **kwargs):
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return unbound(self, *args, **kwargs)
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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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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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t = get_transport(url)
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return _Branch(t), t.relpath(url)
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except NotBranchError:
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new_t = t.clone('..')
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if new_t.base == t.base:
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# reached the root, whatever that may be
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raise NotBranchError(path=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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@deprecated_function(zero_eight)
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def initialize(base):
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"""Create a new branch, rooted at 'base' (url)"""
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t = get_transport(base)
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return _Branch(t, init=True)
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"""Create a new working tree and branch, rooted at 'base' (url)
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NOTE: This will soon be deprecated in favour of creation
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return bzrdir.BzrDir.create_standalone_workingtree(base).branch
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def setup_caching(self, cache_root):
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"""Subclasses that care about caching should override this, and set
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up cached stores located under cache_root.
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# seems to be unused, 2006-01-13 mbp
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warn('%s is deprecated' % self.setup_caching)
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self.cache_root = cache_root
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class _Branch(Branch):
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cfg = self.tree_config()
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return cfg.get_option(u"nickname", default=self.base.split('/')[-2])
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def _set_nick(self, nick):
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cfg = self.tree_config()
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cfg.set_option(nick, "nickname")
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assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def lock_write(self):
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raise NotImplementedError('lock_write is abstract')
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raise NotImplementedError('lock_read is abstract')
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raise NotImplementedError('unlock is abstract')
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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 abspath(self, name):
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"""Return absolute filename for something in the branch
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XXX: Robert Collins 20051017 what is this used for? why is it a branch
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method and not a tree method.
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raise NotImplementedError('abspath is abstract')
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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 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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Returns the copied revision count and the failed revisions in a tuple:
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if self.base == from_branch.base:
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raise Exception("can't fetch from a branch to itself %s, %s" %
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(self.base, to_branch.base))
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nested_pb = bzrlib.ui.ui_factory.nested_progress_bar()
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from_branch.lock_read()
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if last_revision is None:
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pb.update('get source history')
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from_history = from_branch.revision_history()
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last_revision = from_history[-1]
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# no history in the source branch
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last_revision = NULL_REVISION
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return self.repository.fetch(from_branch.repository,
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revision_id=last_revision,
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if nested_pb is not None:
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def get_bound_location(self):
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"""Return the URL of the rbanch 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_master_branch(self):
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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_root_id(self):
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"""Return the id of this branches root"""
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raise NotImplementedError('get_root_id is abstract')
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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('print_file is abstract')
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def append_revision(self, *revision_ids):
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raise NotImplementedError('append_revision is abstract')
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def set_revision_history(self, rev_history):
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raise NotImplementedError('set_revision_history is abstract')
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def revision_history(self):
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"""Return sequence of revision hashes on to this branch."""
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raise NotImplementedError('revision_history is abstract')
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"""Return current revision number for this branch.
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That is equivalent to the number of revisions committed to
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return len(self.revision_history())
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"""Older format branches cannot bind or unbind."""
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raise errors.UpgradeRequired(self.base)
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def last_revision(self):
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"""Return last patch hash, or None if no history."""
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ph = self.revision_history()
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def missing_revisions(self, other, stop_revision=None):
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"""Return a list of new revisions that would perfectly fit.
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If self and other have not diverged, return a list of the revisions
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present in other, but missing from self.
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>>> from bzrlib.workingtree import WorkingTree
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>>> bzrlib.trace.silent = True
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>>> d1 = bzrdir.ScratchDir()
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>>> br1 = d1.open_branch()
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>>> wt1 = d1.open_workingtree()
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>>> d2 = bzrdir.ScratchDir()
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>>> br2 = d2.open_branch()
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>>> wt2 = d2.open_workingtree()
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>>> br1.missing_revisions(br2)
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>>> wt2.commit("lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> br2.missing_revisions(br1)
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>>> wt1.commit("lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> wt2.commit("lala!", rev_id="REVISION-ID-2A")
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>>> br1.missing_revisions(br2)
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>>> wt1.commit("lala!", rev_id="REVISION-ID-2B")
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>>> br1.missing_revisions(br2)
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Traceback (most recent call last):
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DivergedBranches: These branches have diverged. Try merge.
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self_history = self.revision_history()
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self_len = len(self_history)
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other_history = other.revision_history()
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other_len = len(other_history)
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common_index = min(self_len, other_len) -1
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if common_index >= 0 and \
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self_history[common_index] != other_history[common_index]:
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raise DivergedBranches(self, other)
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if stop_revision is None:
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stop_revision = other_len
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assert isinstance(stop_revision, int)
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if stop_revision > other_len:
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raise bzrlib.errors.NoSuchRevision(self, stop_revision)
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return other_history[self_len:stop_revision]
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def update_revisions(self, other, stop_revision=None):
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"""Pull in new perfect-fit revisions.
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:param other: Another Branch to pull from
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:param stop_revision: Updated until the given revision
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raise NotImplementedError('update_revisions is abstract')
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def pullable_revisions(self, other, stop_revision):
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raise NotImplementedError('pullable_revisions is abstract')
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def revision_id_to_revno(self, revision_id):
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"""Given a revision id, return its revno"""
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if revision_id is None:
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history = self.revision_history()
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return history.index(revision_id) + 1
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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def get_rev_id(self, revno, history=None):
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"""Find the revision id of the specified revno."""
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history = self.revision_history()
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elif revno <= 0 or revno > len(history):
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raise bzrlib.errors.NoSuchRevision(self, revno)
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return history[revno - 1]
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def pull(self, source, overwrite=False, stop_revision=None):
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raise NotImplementedError('pull is abstract')
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def basis_tree(self):
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"""Return `Tree` object for last revision.
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If there are no revisions yet, return an `EmptyTree`.
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return self.repository.revision_tree(self.last_revision())
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def rename_one(self, from_rel, to_rel):
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This can change the directory or the filename or both.
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raise NotImplementedError('rename_one is abstract')
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def move(self, from_paths, to_name):
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to_name must exist as a versioned directory.
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If to_name exists and is a directory, the files are moved into
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it, keeping their old names. If it is a directory,
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Note that to_name is only the last component of the new name;
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this doesn't change the directory.
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This returns a list of (from_path, to_path) pairs for each
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raise NotImplementedError('move is abstract')
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def get_parent(self):
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"""Return the parent location of the branch.
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This is the default location for push/pull/missing. The usual
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pattern is that the user can override it by specifying a
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raise NotImplementedError('get_parent is abstract')
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def get_push_location(self):
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"""Return the None or the location to push this branch to."""
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raise NotImplementedError('get_push_location is abstract')
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def set_push_location(self, location):
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"""Set a new push location for this branch."""
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raise NotImplementedError('set_push_location is abstract')
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def set_parent(self, url):
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raise NotImplementedError('set_parent is abstract')
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"""Synchronise this branch with the master branch if any.
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:return: None or the last_revision pivoted out during the update.
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def check_revno(self, revno):
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Check whether a revno corresponds to any revision.
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Zero (the NULL revision) is considered valid.
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self.check_real_revno(revno)
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def check_real_revno(self, revno):
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Check whether a revno corresponds to a real revision.
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Zero (the NULL revision) is considered invalid
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if revno < 1 or revno > self.revno():
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raise InvalidRevisionNumber(revno)
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def clone(self, *args, **kwargs):
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"""Clone this branch into to_bzrdir preserving all semantic values.
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revision_id: if not None, the revision history in the new branch will
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be truncated to end with revision_id.
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# for API compatability, until 0.8 releases we provide the old api:
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# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
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# after 0.8 releases, the *args and **kwargs should be changed:
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# def clone(self, to_bzrdir, revision_id=None):
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if (kwargs.get('to_location', None) or
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kwargs.get('revision', None) or
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kwargs.get('basis_branch', None) or
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(len(args) and isinstance(args[0], basestring))):
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# backwards compatability api:
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warn("Branch.clone() has been deprecated for BzrDir.clone() from"
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" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
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basis_branch = args[2]
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basis_branch = kwargs.get('basis_branch', None)
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basis = basis_branch.bzrdir
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revision_id = args[1]
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revision_id = kwargs.get('revision', None)
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# no default to raise if not provided.
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url = kwargs.get('to_location')
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return self.bzrdir.clone(url,
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revision_id=revision_id,
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basis=basis).open_branch()
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# generate args by hand
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revision_id = args[1]
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revision_id = kwargs.get('revision_id', None)
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# no default to raise if not provided.
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to_bzrdir = kwargs.get('to_bzrdir')
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result = self._format.initialize(to_bzrdir)
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self.copy_content_into(result, revision_id=revision_id)
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def sprout(self, to_bzrdir, revision_id=None):
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"""Create a new line of development from the branch, into to_bzrdir.
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revision_id: if not None, the revision history in the new branch will
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be truncated to end with revision_id.
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result = self._format.initialize(to_bzrdir)
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self.copy_content_into(result, revision_id=revision_id)
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result.set_parent(self.bzrdir.root_transport.base)
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def copy_content_into(self, destination, revision_id=None):
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"""Copy the content of self into destination.
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revision_id: if not None, the revision history in the new branch will
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be truncated to end with revision_id.
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new_history = self.revision_history()
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if revision_id is not None:
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new_history = new_history[:new_history.index(revision_id) + 1]
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rev = self.repository.get_revision(revision_id)
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new_history = rev.get_history(self.repository)[1:]
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destination.set_revision_history(new_history)
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parent = self.get_parent()
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destination.set_parent(parent)
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class BranchFormat(object):
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"""An encapsulation of the initialization and open routines for a format.
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Formats provide three things:
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* An initialization routine,
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Formats are placed in an dict by their format string for reference
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during branch opening. Its not required that these be instances, they
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can be classes themselves with class methods - it simply depends on
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whether state is needed for a given format or not.
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Once a format is deprecated, just deprecate the initialize and open
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methods on the format class. Do not deprecate the object, as the
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object will be created every time regardless.
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_default_format = None
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"""The default format used for new branches."""
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"""The known formats."""
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def find_format(klass, a_bzrdir):
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"""Return the format for the branch object in a_bzrdir."""
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transport = a_bzrdir.get_branch_transport(None)
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format_string = transport.get("format").read()
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return klass._formats[format_string]
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raise NotBranchError(path=transport.base)
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raise errors.UnknownFormatError(format_string)
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def get_default_format(klass):
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"""Return the current default format."""
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return klass._default_format
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def get_format_string(self):
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"""Return the ASCII format string that identifies this format."""
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raise NotImplementedError(self.get_format_string)
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def initialize(self, a_bzrdir):
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"""Create a branch of this format in a_bzrdir."""
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raise NotImplementedError(self.initialized)
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def is_supported(self):
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"""Is this format supported?
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Supported formats can be initialized and opened.
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Unsupported formats may not support initialization or committing or
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some other features depending on the reason for not being supported.
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def open(self, a_bzrdir, _found=False):
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"""Return the branch object for a_bzrdir
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_found is a private parameter, do not use it. It is used to indicate
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if format probing has already be done.
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raise NotImplementedError(self.open)
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def register_format(klass, format):
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klass._formats[format.get_format_string()] = format
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def set_default_format(klass, format):
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klass._default_format = format
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def unregister_format(klass, format):
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assert klass._formats[format.get_format_string()] is format
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del klass._formats[format.get_format_string()]
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class BzrBranchFormat4(BranchFormat):
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"""Bzr branch format 4.
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- a revision-history file.
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- a branch-lock lock file [ to be shared with the bzrdir ]
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def initialize(self, a_bzrdir):
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"""Create a branch of this format in a_bzrdir."""
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mutter('creating branch in %s', a_bzrdir.transport.base)
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branch_transport = a_bzrdir.get_branch_transport(self)
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utf8_files = [('revision-history', ''),
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control_files = LockableFiles(branch_transport, 'branch-lock',
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control_files.create_lock()
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control_files.lock_write()
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for file, content in utf8_files:
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control_files.put_utf8(file, content)
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control_files.unlock()
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return self.open(a_bzrdir, _found=True)
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super(BzrBranchFormat4, self).__init__()
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self._matchingbzrdir = bzrdir.BzrDirFormat6()
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def open(self, a_bzrdir, _found=False):
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"""Return the branch object for a_bzrdir
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_found is a private parameter, do not use it. It is used to indicate
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if format probing has already be done.
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# we are being called directly and must probe.
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raise NotImplementedError
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return BzrBranch(_format=self,
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_control_files=a_bzrdir._control_files,
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_repository=a_bzrdir.open_repository())
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class BzrBranchFormat5(BranchFormat):
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"""Bzr branch format 5.
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- a revision-history file.
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- a lock dir guarding the branch itself
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- all of this stored in a branch/ subdirectory
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- works with shared repositories.
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This format is new in bzr 0.8.
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def get_format_string(self):
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"""See BranchFormat.get_format_string()."""
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return "Bazaar-NG branch format 5\n"
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def initialize(self, a_bzrdir):
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"""Create a branch of this format in a_bzrdir."""
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mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
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branch_transport = a_bzrdir.get_branch_transport(self)
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utf8_files = [('revision-history', ''),
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control_files = LockableFiles(branch_transport, 'lock', LockDir)
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control_files.create_lock()
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control_files.lock_write()
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control_files.put_utf8('format', self.get_format_string())
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for file, content in utf8_files:
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control_files.put_utf8(file, content)
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control_files.unlock()
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return self.open(a_bzrdir, _found=True, )
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super(BzrBranchFormat5, self).__init__()
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self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
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def open(self, a_bzrdir, _found=False):
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"""Return the branch object for a_bzrdir
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_found is a private parameter, do not use it. It is used to indicate
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if format probing has already be done.
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format = BranchFormat.find_format(a_bzrdir)
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assert format.__class__ == self.__class__
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transport = a_bzrdir.get_branch_transport(None)
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control_files = LockableFiles(transport, 'lock', LockDir)
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return BzrBranch5(_format=self,
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_control_files=control_files,
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_repository=a_bzrdir.find_repository())
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return "Bazaar-NG Metadir branch format 5"
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class BranchReferenceFormat(BranchFormat):
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"""Bzr branch reference format.
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Branch references are used in implementing checkouts, they
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act as an alias to the real branch which is at some other url.
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def get_format_string(self):
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"""See BranchFormat.get_format_string()."""
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return "Bazaar-NG Branch Reference Format 1\n"
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def initialize(self, a_bzrdir, target_branch=None):
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"""Create a branch of this format in a_bzrdir."""
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if target_branch is None:
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# this format does not implement branch itself, thus the implicit
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# creation contract must see it as uninitializable
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raise errors.UninitializableFormat(self)
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mutter('creating branch reference in %s', a_bzrdir.transport.base)
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branch_transport = a_bzrdir.get_branch_transport(self)
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# FIXME rbc 20060209 one j-a-ms encoding branch lands this str() cast is not needed.
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branch_transport.put('location', StringIO(str(target_branch.bzrdir.root_transport.base)))
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branch_transport.put('format', StringIO(self.get_format_string()))
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return self.open(a_bzrdir, _found=True)
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super(BranchReferenceFormat, self).__init__()
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self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
741
def _make_reference_clone_function(format, a_branch):
742
"""Create a clone() routine for a branch dynamically."""
743
def clone(to_bzrdir, revision_id=None):
744
"""See Branch.clone()."""
745
return format.initialize(to_bzrdir, a_branch)
746
# cannot obey revision_id limits when cloning a reference ...
747
# FIXME RBC 20060210 either nuke revision_id for clone, or
748
# emit some sort of warning/error to the caller ?!
751
def open(self, a_bzrdir, _found=False):
752
"""Return the branch that the branch reference in a_bzrdir points at.
754
_found is a private parameter, do not use it. It is used to indicate
755
if format probing has already be done.
758
format = BranchFormat.find_format(a_bzrdir)
759
assert format.__class__ == self.__class__
760
transport = a_bzrdir.get_branch_transport(None)
761
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
762
result = real_bzrdir.open_branch()
763
# this changes the behaviour of result.clone to create a new reference
764
# rather than a copy of the content of the branch.
765
# I did not use a proxy object because that needs much more extensive
766
# testing, and we are only changing one behaviour at the moment.
767
# If we decide to alter more behaviours - i.e. the implicit nickname
768
# then this should be refactored to introduce a tested proxy branch
769
# and a subclass of that for use in overriding clone() and ....
771
result.clone = self._make_reference_clone_function(result)
775
# formats which have no format string are not discoverable
776
# and not independently creatable, so are not registered.
777
__default_format = BzrBranchFormat5()
778
BranchFormat.register_format(__default_format)
779
BranchFormat.register_format(BranchReferenceFormat())
780
BranchFormat.set_default_format(__default_format)
781
_legacy_formats = [BzrBranchFormat4(),
784
class BzrBranch(Branch):
156
785
"""A branch stored in the actual filesystem.
158
787
Note that it's "local" in the context of the filesystem; it doesn't
159
788
really matter if it's on an nfs/smb/afs/coda/... share, as long as
160
789
it's writable, and can be accessed via the normal filesystem API.
166
If _lock_mode is true, a positive count of the number of times the
170
Lock object from bzrlib.lock.
172
# We actually expect this class to be somewhat short-lived; part of its
173
# purpose is to try to isolate what bits of the branch logic are tied to
174
# filesystem access, so that in a later step, we can extricate them to
175
# a separarte ("storage") class.
179
_inventory_weave = None
181
# Map some sort of prefix into a namespace
182
# stuff like "revno:10", "revid:", etc.
183
# This should match a prefix with a function which accepts
184
REVISION_NAMESPACES = {}
186
def push_stores(self, branch_to):
187
"""Copy the content of this branches store to branch_to."""
188
if (self._branch_format != branch_to._branch_format
189
or self._branch_format != 4):
190
from bzrlib.fetch import greedy_fetch
191
mutter("falling back to fetch logic to push between %s(%s) and %s(%s)",
192
self, self._branch_format, branch_to, branch_to._branch_format)
193
greedy_fetch(to_branch=branch_to, from_branch=self,
194
revision=self.last_revision())
197
store_pairs = ((self.text_store, branch_to.text_store),
198
(self.inventory_store, branch_to.inventory_store),
199
(self.revision_store, branch_to.revision_store))
201
for from_store, to_store in store_pairs:
202
copy_all(from_store, to_store)
203
except UnlistableStore:
204
raise UnlistableBranch(from_store)
206
def __init__(self, transport, init=False,
207
relax_version_check=False):
792
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
793
relax_version_check=DEPRECATED_PARAMETER, _format=None,
794
_control_files=None, a_bzrdir=None, _repository=None):
208
795
"""Create new branch object at a particular location.
210
797
transport -- A Transport object, defining how to access files.
211
(If a string, transport.transport() will be used to
212
create a Transport object)
214
799
init -- If True, create new control files in a previously
215
800
unversioned directory. If False, the branch must already
219
804
version is not applied. This is intended only for
220
805
upgrade/recovery type use; it's not guaranteed that
221
806
all operations will work on old format branches.
223
In the test suite, creation of new trees is tested using the
224
`ScratchBranch` class.
226
assert isinstance(transport, Transport), \
227
"%r is not a Transport" % transport
228
self._transport = transport
231
self._check_format(relax_version_check)
233
def get_store(name, compressed=True, prefixed=False):
234
# FIXME: This approach of assuming stores are all entirely compressed
235
# or entirely uncompressed is tidy, but breaks upgrade from
236
# some existing branches where there's a mixture; we probably
237
# still want the option to look for both.
238
relpath = self._rel_controlfilename(name)
240
store = CompressedTextStore(self._transport.clone(relpath),
243
store = TextStore(self._transport.clone(relpath),
245
#if self._transport.should_cache():
246
# cache_path = os.path.join(self.cache_root, name)
247
# os.mkdir(cache_path)
248
# store = bzrlib.store.CachedStore(store, cache_path)
250
def get_weave(name, prefixed=False):
251
relpath = self._rel_controlfilename(name)
252
ws = WeaveStore(self._transport.clone(relpath), prefixed=prefixed)
253
if self._transport.should_cache():
254
ws.enable_cache = True
257
if self._branch_format == 4:
258
self.inventory_store = get_store('inventory-store')
259
self.text_store = get_store('text-store')
260
self.revision_store = get_store('revision-store')
261
elif self._branch_format == 5:
262
self.control_weaves = get_weave('')
263
self.weave_store = get_weave('weaves')
264
self.revision_store = get_store('revision-store', compressed=False)
265
elif self._branch_format == 6:
266
self.control_weaves = get_weave('')
267
self.weave_store = get_weave('weaves', prefixed=True)
268
self.revision_store = get_store('revision-store', compressed=False,
270
self.revision_store.register_suffix('sig')
271
self._transaction = None
809
self.bzrdir = bzrdir.BzrDir.open(transport.base)
811
self.bzrdir = a_bzrdir
812
self._transport = self.bzrdir.transport.clone('..')
813
self._base = self._transport.base
814
self._format = _format
815
if _control_files is None:
816
raise BzrBadParameterMissing('_control_files')
817
self.control_files = _control_files
818
if deprecated_passed(init):
819
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
820
"deprecated as of bzr 0.8. Please use Branch.create().",
824
# this is slower than before deprecation, oh well never mind.
826
self._initialize(transport.base)
827
self._check_format(_format)
828
if deprecated_passed(relax_version_check):
829
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
830
"relax_version_check parameter is deprecated as of bzr 0.8. "
831
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
835
if (not relax_version_check
836
and not self._format.is_supported()):
837
raise errors.UnsupportedFormatError(
838
'sorry, branch format %r not supported' % fmt,
839
['use a different bzr version',
840
'or remove the .bzr directory'
841
' and "bzr init" again'])
842
if deprecated_passed(transport):
843
warn("BzrBranch.__init__(transport=XXX...): The transport "
844
"parameter is deprecated as of bzr 0.8. "
845
"Please use Branch.open, or bzrdir.open_branch().",
848
self.repository = _repository
273
850
def __str__(self):
274
return '%s(%r)' % (self.__class__.__name__, self._transport.base)
851
return '%s(%r)' % (self.__class__.__name__, self.base)
277
853
__repr__ = __str__
280
855
def __del__(self):
281
if self._lock_mode or self._lock:
282
# XXX: This should show something every time, and be suitable for
283
# headless operation and embedding
284
warn("branch %r was not explicitly unlocked" % self)
287
856
# TODO: It might be best to do this somewhere else,
288
857
# but it is nice for a Branch object to automatically
289
858
# cache it's information.
290
859
# Alternatively, we could have the Transport objects cache requests
291
860
# See the earlier discussion about how major objects (like Branch)
292
861
# should never expect their __del__ function to run.
862
# XXX: cache_root seems to be unused, 2006-01-13 mbp
293
863
if hasattr(self, 'cache_root') and self.cache_root is not None:
296
865
shutil.rmtree(self.cache_root)
299
868
self.cache_root = None
301
870
def _get_base(self):
303
return self._transport.base
306
873
base = property(_get_base, doc="The URL for the root of this branch.")
308
875
def _finish_transaction(self):
309
876
"""Exit the current transaction."""
310
if self._transaction is None:
311
raise errors.LockError('Branch %s is not in a transaction' %
313
transaction = self._transaction
314
self._transaction = None
877
return self.control_files._finish_transaction()
317
879
def get_transaction(self):
318
880
"""Return the current active transaction.
320
882
If no transaction is active, this returns a passthrough object
321
for which all data is immedaitely flushed and no caching happens.
883
for which all data is immediately flushed and no caching happens.
323
if self._transaction is None:
324
return transactions.PassThroughTransaction()
326
return self._transaction
885
# this is an explicit function so that we can do tricky stuff
886
# when the storage in rev_storage is elsewhere.
887
# we probably need to hook the two 'lock a location' and
888
# 'have a transaction' together more delicately, so that
889
# we can have two locks (branch and storage) and one transaction
890
# ... and finishing the transaction unlocks both, but unlocking
891
# does not. - RBC 20051121
892
return self.control_files.get_transaction()
328
def _set_transaction(self, new_transaction):
894
def _set_transaction(self, transaction):
329
895
"""Set a new active transaction."""
330
if self._transaction is not None:
331
raise errors.LockError('Branch %s is in a transaction already.' %
333
self._transaction = new_transaction
896
return self.control_files._set_transaction(transaction)
898
def abspath(self, name):
899
"""See Branch.abspath."""
900
return self.control_files._transport.abspath(name)
902
def _check_format(self, format):
903
"""Identify the branch format if needed.
905
The format is stored as a reference to the format object in
906
self._format for code that needs to check it later.
908
The format parameter is either None or the branch format class
909
used to open this branch.
911
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
914
format = BzrBranchFormat.find_format(self.bzrdir)
915
self._format = format
916
mutter("got branch format %s", self._format)
919
def get_root_id(self):
920
"""See Branch.get_root_id."""
921
tree = self.repository.revision_tree(self.last_revision())
922
return tree.inventory.root.file_id
335
924
def lock_write(self):
336
mutter("lock write: %s (%s)", self, self._lock_count)
337
# TODO: Upgrade locking to support using a Transport,
338
# and potentially a remote locking protocol
340
if self._lock_mode != 'w':
341
raise LockError("can't upgrade to a write lock from %r" %
343
self._lock_count += 1
345
self._lock = self._transport.lock_write(
346
self._rel_controlfilename('branch-lock'))
347
self._lock_mode = 'w'
349
self._set_transaction(transactions.PassThroughTransaction())
925
# TODO: test for failed two phase locks. This is known broken.
926
self.control_files.lock_write()
927
self.repository.lock_write()
351
929
def lock_read(self):
352
mutter("lock read: %s (%s)", self, self._lock_count)
354
assert self._lock_mode in ('r', 'w'), \
355
"invalid lock mode %r" % self._lock_mode
356
self._lock_count += 1
358
self._lock = self._transport.lock_read(
359
self._rel_controlfilename('branch-lock'))
360
self._lock_mode = 'r'
362
self._set_transaction(transactions.ReadOnlyTransaction())
363
# 5K may be excessive, but hey, its a knob.
364
self.get_transaction().set_cache_size(5000)
930
# TODO: test for failed two phase locks. This is known broken.
931
self.control_files.lock_read()
932
self.repository.lock_read()
366
934
def unlock(self):
367
mutter("unlock: %s (%s)", self, self._lock_count)
368
if not self._lock_mode:
369
raise LockError('branch %r is not locked' % (self))
371
if self._lock_count > 1:
372
self._lock_count -= 1
374
self._finish_transaction()
377
self._lock_mode = self._lock_count = None
379
def abspath(self, name):
380
"""Return absolute filename for something in the branch
382
XXX: Robert Collins 20051017 what is this used for? why is it a branch
383
method and not a tree method.
385
return self._transport.abspath(name)
387
def _rel_controlfilename(self, file_or_path):
388
if not isinstance(file_or_path, basestring):
389
file_or_path = '/'.join(file_or_path)
390
if file_or_path == '':
392
return bzrlib.transport.urlescape(bzrlib.BZRDIR + '/' + file_or_path)
394
def controlfilename(self, file_or_path):
395
"""Return location relative to branch."""
396
return self._transport.abspath(self._rel_controlfilename(file_or_path))
399
def controlfile(self, file_or_path, mode='r'):
400
"""Open a control file for this branch.
402
There are two classes of file in the control directory: text
403
and binary. binary files are untranslated byte streams. Text
404
control files are stored with Unix newlines and in UTF-8, even
405
if the platform or locale defaults are different.
407
Controlfiles should almost never be opened in write mode but
408
rather should be atomically copied and replaced using atomicfile.
412
relpath = self._rel_controlfilename(file_or_path)
413
#TODO: codecs.open() buffers linewise, so it was overloaded with
414
# a much larger buffer, do we need to do the same for getreader/getwriter?
416
return self._transport.get(relpath)
418
raise BzrError("Branch.controlfile(mode='wb') is not supported, use put_controlfiles")
420
return codecs.getreader('utf-8')(self._transport.get(relpath), errors='replace')
422
raise BzrError("Branch.controlfile(mode='w') is not supported, use put_controlfiles")
424
raise BzrError("invalid controlfile mode %r" % mode)
426
def put_controlfile(self, path, f, encode=True):
427
"""Write an entry as a controlfile.
429
:param path: The path to put the file, relative to the .bzr control
431
:param f: A file-like or string object whose contents should be copied.
432
:param encode: If true, encode the contents as utf-8
434
self.put_controlfiles([(path, f)], encode=encode)
436
def put_controlfiles(self, files, encode=True):
437
"""Write several entries as controlfiles.
439
:param files: A list of [(path, file)] pairs, where the path is the directory
440
underneath the bzr control directory
441
:param encode: If true, encode the contents as utf-8
445
for path, f in files:
447
if isinstance(f, basestring):
448
f = f.encode('utf-8', 'replace')
450
f = codecs.getwriter('utf-8')(f, errors='replace')
451
path = self._rel_controlfilename(path)
452
ctrl_files.append((path, f))
453
self._transport.put_multi(ctrl_files)
455
def _make_control(self):
456
from bzrlib.inventory import Inventory
457
from bzrlib.weavefile import write_weave_v5
458
from bzrlib.weave import Weave
460
# Create an empty inventory
462
# if we want per-tree root ids then this is the place to set
463
# them; they're not needed for now and so ommitted for
465
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), sio)
466
empty_inv = sio.getvalue()
468
bzrlib.weavefile.write_weave_v5(Weave(), sio)
469
empty_weave = sio.getvalue()
471
dirs = [[], 'revision-store', 'weaves']
473
"This is a Bazaar-NG control directory.\n"
474
"Do not change any files in this directory.\n"),
475
('branch-format', BZR_BRANCH_FORMAT_6),
476
('revision-history', ''),
479
('pending-merges', ''),
480
('inventory', empty_inv),
481
('inventory.weave', empty_weave),
482
('ancestry.weave', empty_weave)
484
cfn = self._rel_controlfilename
485
self._transport.mkdir_multi([cfn(d) for d in dirs])
486
self.put_controlfiles(files)
487
mutter('created control directory in ' + self._transport.base)
489
def _check_format(self, relax_version_check):
490
"""Check this branch format is supported.
492
The format level is stored, as an integer, in
493
self._branch_format for code that needs to check it later.
495
In the future, we might need different in-memory Branch
496
classes to support downlevel branches. But not yet.
499
fmt = self.controlfile('branch-format', 'r').read()
501
raise NotBranchError(path=self.base)
502
mutter("got branch format %r", fmt)
503
if fmt == BZR_BRANCH_FORMAT_6:
504
self._branch_format = 6
505
elif fmt == BZR_BRANCH_FORMAT_5:
506
self._branch_format = 5
507
elif fmt == BZR_BRANCH_FORMAT_4:
508
self._branch_format = 4
510
if (not relax_version_check
511
and self._branch_format not in (5, 6)):
512
raise errors.UnsupportedFormatError(
513
'sorry, branch format %r not supported' % fmt,
514
['use a different bzr version',
515
'or remove the .bzr directory'
516
' and "bzr init" again'])
518
def get_root_id(self):
519
"""Return the id of this branches root"""
520
inv = self.read_working_inventory()
521
return inv.root.file_id
523
def set_root_id(self, file_id):
524
inv = self.read_working_inventory()
525
orig_root_id = inv.root.file_id
526
del inv._byid[inv.root.file_id]
527
inv.root.file_id = file_id
528
inv._byid[inv.root.file_id] = inv.root
531
if entry.parent_id in (None, orig_root_id):
532
entry.parent_id = inv.root.file_id
533
self._write_inventory(inv)
536
def read_working_inventory(self):
537
"""Read the working inventory."""
538
# ElementTree does its own conversion from UTF-8, so open in
540
f = self.controlfile('inventory', 'rb')
541
return bzrlib.xml5.serializer_v5.read_inventory(f)
544
def _write_inventory(self, inv):
545
"""Update the working inventory.
547
That is to say, the inventory describing changes underway, that
548
will be committed to the next revision.
550
from cStringIO import StringIO
552
bzrlib.xml5.serializer_v5.write_inventory(inv, sio)
554
# Transport handles atomicity
555
self.put_controlfile('inventory', sio)
557
mutter('wrote working inventory')
559
inventory = property(read_working_inventory, _write_inventory, None,
560
"""Inventory for the working copy.""")
563
def add(self, files, ids=None):
564
"""Make files versioned.
566
Note that the command line normally calls smart_add instead,
567
which can automatically recurse.
569
This puts the files in the Added state, so that they will be
570
recorded by the next commit.
573
List of paths to add, relative to the base of the tree.
576
If set, use these instead of automatically generated ids.
577
Must be the same length as the list of files, but may
578
contain None for ids that are to be autogenerated.
580
TODO: Perhaps have an option to add the ids even if the files do
583
TODO: Perhaps yield the ids and paths as they're added.
585
# TODO: Re-adding a file that is removed in the working copy
586
# should probably put it back with the previous ID.
587
if isinstance(files, basestring):
588
assert(ids is None or isinstance(ids, basestring))
594
ids = [None] * len(files)
596
assert(len(ids) == len(files))
598
inv = self.read_working_inventory()
599
for f,file_id in zip(files, ids):
600
if is_control_file(f):
601
raise BzrError("cannot add control file %s" % quotefn(f))
606
raise BzrError("cannot add top-level %r" % f)
608
fullpath = os.path.normpath(self.abspath(f))
611
kind = file_kind(fullpath)
613
# maybe something better?
614
raise BzrError('cannot add: not a regular file, symlink or directory: %s' % quotefn(f))
616
if not InventoryEntry.versionable_kind(kind):
617
raise BzrError('cannot add: not a versionable file ('
618
'i.e. regular file, symlink or directory): %s' % quotefn(f))
621
file_id = gen_file_id(f)
622
inv.add_path(f, kind=kind, file_id=file_id)
624
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
626
self._write_inventory(inv)
629
def print_file(self, file, revno):
630
"""Print `file` to stdout."""
631
tree = self.revision_tree(self.get_rev_id(revno))
632
# use inventory as it was in that revision
633
file_id = tree.inventory.path2id(file)
635
raise BzrError("%r is not present in revision %s" % (file, revno))
636
tree.print_file(file_id)
638
# FIXME: this doesn't need to be a branch method
639
def set_inventory(self, new_inventory_list):
640
from bzrlib.inventory import Inventory, InventoryEntry
641
inv = Inventory(self.get_root_id())
642
for path, file_id, parent, kind in new_inventory_list:
643
name = os.path.basename(path)
646
# fixme, there should be a factory function inv,add_??
647
if kind == 'directory':
648
inv.add(inventory.InventoryDirectory(file_id, name, parent))
650
inv.add(inventory.InventoryFile(file_id, name, parent))
651
elif kind == 'symlink':
652
inv.add(inventory.InventoryLink(file_id, name, parent))
654
raise BzrError("unknown kind %r" % kind)
655
self._write_inventory(inv)
658
"""Return all unknown files.
660
These are files in the working directory that are not versioned or
661
control files or ignored.
663
>>> from bzrlib.workingtree import WorkingTree
664
>>> b = ScratchBranch(files=['foo', 'foo~'])
665
>>> map(str, b.unknowns())
668
>>> list(b.unknowns())
670
>>> WorkingTree(b.base, b).remove('foo')
671
>>> list(b.unknowns())
674
return self.working_tree().unknowns()
935
# TODO: test for failed two phase locks. This is known broken.
936
self.repository.unlock()
937
self.control_files.unlock()
939
def peek_lock_mode(self):
940
if self.control_files._lock_count == 0:
943
return self.control_files._lock_mode
946
def print_file(self, file, revision_id):
947
"""See Branch.print_file."""
948
return self.repository.print_file(file, revision_id)
676
950
@needs_write_lock
677
951
def append_revision(self, *revision_ids):
952
"""See Branch.append_revision."""
678
953
for revision_id in revision_ids:
679
954
mutter("add {%s} to revision-history" % revision_id)
680
955
rev_history = self.revision_history()
738
989
# revno is 1-based; list is 0-based
740
new_tree = self.revision_tree(rh[revno-1])
991
new_tree = self.repository.revision_tree(rh[revno-1])
742
993
old_tree = EmptyTree()
744
old_tree = self.revision_tree(rh[revno-2])
995
old_tree = self.repository.revision_tree(rh[revno-2])
746
996
return compare_trees(old_tree, new_tree)
748
def get_revision_sha1(self, revision_id):
749
"""Hash the stored value of a revision, and return it."""
750
# In the future, revision entries will be signed. At that
751
# point, it is probably best *not* to include the signature
752
# in the revision hash. Because that lets you re-sign
753
# the revision, (add signatures/remove signatures) and still
754
# have all hash pointers stay consistent.
755
# But for now, just hash the contents.
756
return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
758
def get_ancestry(self, revision_id):
759
"""Return a list of revision-ids integrated by a revision.
761
This currently returns a list, but the ordering is not guaranteed:
764
if revision_id is None:
766
w = self.get_inventory_weave()
767
return [None] + map(w.idx_to_name,
768
w.inclusions([w.lookup(revision_id)]))
770
def get_inventory_weave(self):
771
return self.control_weaves.get_weave('inventory',
772
self.get_transaction())
774
def get_inventory(self, revision_id):
775
"""Get Inventory object by hash."""
776
xml = self.get_inventory_xml(revision_id)
777
return bzrlib.xml5.serializer_v5.read_inventory_from_string(xml)
779
def get_inventory_xml(self, revision_id):
780
"""Get inventory XML as a file object."""
782
assert isinstance(revision_id, basestring), type(revision_id)
783
iw = self.get_inventory_weave()
784
return iw.get_text(iw.lookup(revision_id))
786
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
788
def get_inventory_sha1(self, revision_id):
789
"""Return the sha1 hash of the inventory entry
791
return self.get_revision(revision_id).inventory_sha1
793
def get_revision_inventory(self, revision_id):
794
"""Return inventory of a past revision."""
795
# TODO: Unify this with get_inventory()
796
# bzr 0.0.6 and later imposes the constraint that the inventory_id
797
# must be the same as its revision, so this is trivial.
798
if revision_id == None:
799
return Inventory(self.get_root_id())
801
return self.get_inventory(revision_id)
804
999
def revision_history(self):
805
"""Return sequence of revision hashes on to this branch."""
1000
"""See Branch.revision_history."""
806
1001
transaction = self.get_transaction()
807
1002
history = transaction.map.find_revision_history()
808
1003
if history is not None:
809
1004
mutter("cache hit for revision-history in %s", self)
810
1005
return list(history)
811
1006
history = [l.rstrip('\r\n') for l in
812
self.controlfile('revision-history', 'r').readlines()]
1007
self.control_files.get_utf8('revision-history').readlines()]
813
1008
transaction.map.add_revision_history(history)
814
1009
# this call is disabled because revision_history is
815
1010
# not really an object yet, and the transaction is for objects.
816
1011
# transaction.register_clean(history, precious=True)
817
1012
return list(history)
820
"""Return current revision number for this branch.
822
That is equivalent to the number of revisions committed to
825
return len(self.revision_history())
827
def last_revision(self):
828
"""Return last patch hash, or None if no history.
830
ph = self.revision_history()
836
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
837
"""Return a list of new revisions that would perfectly fit.
839
If self and other have not diverged, return a list of the revisions
840
present in other, but missing from self.
842
>>> from bzrlib.commit import commit
843
>>> bzrlib.trace.silent = True
844
>>> br1 = ScratchBranch()
845
>>> br2 = ScratchBranch()
846
>>> br1.missing_revisions(br2)
848
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
849
>>> br1.missing_revisions(br2)
851
>>> br2.missing_revisions(br1)
853
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
854
>>> br1.missing_revisions(br2)
856
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
857
>>> br1.missing_revisions(br2)
859
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
860
>>> br1.missing_revisions(br2)
861
Traceback (most recent call last):
862
DivergedBranches: These branches have diverged.
864
self_history = self.revision_history()
865
self_len = len(self_history)
866
other_history = other.revision_history()
867
other_len = len(other_history)
868
common_index = min(self_len, other_len) -1
869
if common_index >= 0 and \
870
self_history[common_index] != other_history[common_index]:
871
raise DivergedBranches(self, other)
873
if stop_revision is None:
874
stop_revision = other_len
876
assert isinstance(stop_revision, int)
877
if stop_revision > other_len:
878
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
879
return other_history[self_len:stop_revision]
881
1014
def update_revisions(self, other, stop_revision=None):
882
"""Pull in new perfect-fit revisions."""
883
# FIXME: If the branches have diverged, but the latest
884
# revision in this branch is completely merged into the other,
885
# then we should still be able to pull.
886
from bzrlib.fetch import greedy_fetch
1015
"""See Branch.update_revisions."""
887
1016
if stop_revision is None:
888
1017
stop_revision = other.last_revision()
889
1018
### Should this be checking is_ancestor instead of revision_history?
890
1019
if (stop_revision is not None and
891
1020
stop_revision in self.revision_history()):
893
greedy_fetch(to_branch=self, from_branch=other,
894
revision=stop_revision)
1022
self.fetch(other, stop_revision)
895
1023
pullable_revs = self.pullable_revisions(other, stop_revision)
896
1024
if len(pullable_revs) > 0:
897
1025
self.append_revision(*pullable_revs)
915
def commit(self, *args, **kw):
916
from bzrlib.commit import Commit
917
Commit().commit(self, *args, **kw)
919
def revision_id_to_revno(self, revision_id):
920
"""Given a revision id, return its revno"""
921
if revision_id is None:
923
history = self.revision_history()
925
return history.index(revision_id) + 1
927
raise bzrlib.errors.NoSuchRevision(self, revision_id)
929
def get_rev_id(self, revno, history=None):
930
"""Find the revision id of the specified revno."""
934
history = self.revision_history()
935
elif revno <= 0 or revno > len(history):
936
raise bzrlib.errors.NoSuchRevision(self, revno)
937
return history[revno - 1]
939
def revision_tree(self, revision_id):
940
"""Return Tree for a revision on this branch.
942
`revision_id` may be None for the null revision, in which case
943
an `EmptyTree` is returned."""
944
# TODO: refactor this to use an existing revision object
945
# so we don't need to read it in twice.
946
if revision_id == None:
949
inv = self.get_revision_inventory(revision_id)
950
return RevisionTree(self.weave_store, inv, revision_id)
1044
def basis_tree(self):
1045
"""See Branch.basis_tree."""
1046
return self.repository.revision_tree(self.last_revision())
1048
@deprecated_method(zero_eight)
952
1049
def working_tree(self):
953
"""Return a `Tree` for the working copy."""
1050
"""Create a Working tree object for this branch."""
954
1051
from bzrlib.workingtree import WorkingTree
955
# TODO: In the future, perhaps WorkingTree should utilize Transport
956
# RobertCollins 20051003 - I don't think it should - working trees are
957
# much more complex to keep consistent than our careful .bzr subset.
958
# instead, we should say that working trees are local only, and optimise
960
return WorkingTree(self.base, branch=self)
963
def basis_tree(self):
964
"""Return `Tree` object for last revision.
966
If there are no revisions yet, return an `EmptyTree`.
968
return self.revision_tree(self.last_revision())
1052
from bzrlib.transport.local import LocalTransport
1053
if (self.base.find('://') != -1 or
1054
not isinstance(self._transport, LocalTransport)):
1055
raise NoWorkingTree(self.base)
1056
return self.bzrdir.open_workingtree()
970
1058
@needs_write_lock
971
def rename_one(self, from_rel, to_rel):
974
This can change the directory or the filename or both.
976
tree = self.working_tree()
978
if not tree.has_filename(from_rel):
979
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
980
if tree.has_filename(to_rel):
981
raise BzrError("can't rename: new working file %r already exists" % to_rel)
983
file_id = inv.path2id(from_rel)
985
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
987
if inv.path2id(to_rel):
988
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
990
to_dir, to_tail = os.path.split(to_rel)
991
to_dir_id = inv.path2id(to_dir)
992
if to_dir_id == None and to_dir != '':
993
raise BzrError("can't determine destination directory id for %r" % to_dir)
995
mutter("rename_one:")
996
mutter(" file_id {%s}" % file_id)
997
mutter(" from_rel %r" % from_rel)
998
mutter(" to_rel %r" % to_rel)
999
mutter(" to_dir %r" % to_dir)
1000
mutter(" to_dir_id {%s}" % to_dir_id)
1002
inv.rename(file_id, to_dir_id, to_tail)
1004
from_abs = self.abspath(from_rel)
1005
to_abs = self.abspath(to_rel)
1059
def pull(self, source, overwrite=False, stop_revision=None):
1060
"""See Branch.pull."""
1007
rename(from_abs, to_abs)
1009
raise BzrError("failed to rename %r to %r: %s"
1010
% (from_abs, to_abs, e[1]),
1011
["rename rolled back"])
1013
self._write_inventory(inv)
1016
def move(self, from_paths, to_name):
1019
to_name must exist as a versioned directory.
1021
If to_name exists and is a directory, the files are moved into
1022
it, keeping their old names. If it is a directory,
1024
Note that to_name is only the last component of the new name;
1025
this doesn't change the directory.
1027
This returns a list of (from_path, to_path) pairs for each
1028
entry that is moved.
1031
## TODO: Option to move IDs only
1032
assert not isinstance(from_paths, basestring)
1033
tree = self.working_tree()
1034
inv = tree.inventory
1035
to_abs = self.abspath(to_name)
1036
if not isdir(to_abs):
1037
raise BzrError("destination %r is not a directory" % to_abs)
1038
if not tree.has_filename(to_name):
1039
raise BzrError("destination %r not in working directory" % to_abs)
1040
to_dir_id = inv.path2id(to_name)
1041
if to_dir_id == None and to_name != '':
1042
raise BzrError("destination %r is not a versioned directory" % to_name)
1043
to_dir_ie = inv[to_dir_id]
1044
if to_dir_ie.kind not in ('directory', 'root_directory'):
1045
raise BzrError("destination %r is not a directory" % to_abs)
1047
to_idpath = inv.get_idpath(to_dir_id)
1049
for f in from_paths:
1050
if not tree.has_filename(f):
1051
raise BzrError("%r does not exist in working tree" % f)
1052
f_id = inv.path2id(f)
1054
raise BzrError("%r is not versioned" % f)
1055
name_tail = splitpath(f)[-1]
1056
dest_path = appendpath(to_name, name_tail)
1057
if tree.has_filename(dest_path):
1058
raise BzrError("destination %r already exists" % dest_path)
1059
if f_id in to_idpath:
1060
raise BzrError("can't move %r to a subdirectory of itself" % f)
1062
# OK, so there's a race here, it's possible that someone will
1063
# create a file in this interval and then the rename might be
1064
# left half-done. But we should have caught most problems.
1066
for f in from_paths:
1067
name_tail = splitpath(f)[-1]
1068
dest_path = appendpath(to_name, name_tail)
1069
result.append((f, dest_path))
1070
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1072
rename(self.abspath(f), self.abspath(dest_path))
1074
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1075
["rename rolled back"])
1077
self._write_inventory(inv)
1081
def revert(self, filenames, old_tree=None, backups=True):
1082
"""Restore selected files to the versions from a previous tree.
1085
If true (default) backups are made of files before
1088
from bzrlib.atomicfile import AtomicFile
1089
from bzrlib.osutils import backup_file
1091
inv = self.read_working_inventory()
1092
if old_tree is None:
1093
old_tree = self.basis_tree()
1094
old_inv = old_tree.inventory
1097
for fn in filenames:
1098
file_id = inv.path2id(fn)
1100
raise NotVersionedError(path=fn)
1101
if not old_inv.has_id(file_id):
1102
raise BzrError("file not present in old tree", fn, file_id)
1103
nids.append((fn, file_id))
1105
# TODO: Rename back if it was previously at a different location
1107
# TODO: If given a directory, restore the entire contents from
1108
# the previous version.
1110
# TODO: Make a backup to a temporary file.
1112
# TODO: If the file previously didn't exist, delete it?
1113
for fn, file_id in nids:
1116
f = AtomicFile(fn, 'wb')
1118
f.write(old_tree.get_file(file_id).read())
1124
def pending_merges(self):
1125
"""Return a list of pending merges.
1127
These are revisions that have been merged into the working
1128
directory but not yet committed.
1130
cfn = self._rel_controlfilename('pending-merges')
1131
if not self._transport.has(cfn):
1134
for l in self.controlfile('pending-merges', 'r').readlines():
1135
p.append(l.rstrip('\n'))
1139
def add_pending_merge(self, *revision_ids):
1140
# TODO: Perhaps should check at this point that the
1141
# history of the revision is actually present?
1142
p = self.pending_merges()
1144
for rev_id in revision_ids:
1150
self.set_pending_merges(p)
1153
def set_pending_merges(self, rev_list):
1154
self.put_controlfile('pending-merges', '\n'.join(rev_list))
1063
old_count = len(self.revision_history())
1065
self.update_revisions(source,stop_revision)
1066
except DivergedBranches:
1070
self.set_revision_history(source.revision_history())
1071
new_count = len(self.revision_history())
1072
return new_count - old_count
1156
1076
def get_parent(self):
1157
"""Return the parent location of the branch.
1159
This is the default location for push/pull/missing. The usual
1160
pattern is that the user can override it by specifying a
1077
"""See Branch.get_parent."""
1164
1079
_locs = ['parent', 'pull', 'x-pull']
1165
1080
for l in _locs:
1167
return self.controlfile(l, 'r').read().strip('\n')
1169
if e.errno != errno.ENOENT:
1082
return self.control_files.get_utf8(l).read().strip('\n')
1087
def get_push_location(self):
1088
"""See Branch.get_push_location."""
1089
config = bzrlib.config.BranchConfig(self)
1090
push_loc = config.get_user_option('push_location')
1093
def set_push_location(self, location):
1094
"""See Branch.set_push_location."""
1095
config = bzrlib.config.LocationConfig(self.base)
1096
config.set_user_option('push_location', location)
1173
1098
@needs_write_lock
1174
1099
def set_parent(self, url):
1100
"""See Branch.set_parent."""
1175
1101
# TODO: Maybe delete old location files?
1176
from bzrlib.atomicfile import AtomicFile
1177
f = AtomicFile(self.controlfilename('parent'))
1102
# URLs should never be unicode, even on the local fs,
1103
# FIXUP this and get_parent in a future branch format bump:
1104
# read and rewrite the file, and have the new format code read
1105
# using .get not .get_utf8. RBC 20060125
1107
self.control_files._transport.delete('parent')
1109
self.control_files.put_utf8('parent', url + '\n')
1111
def tree_config(self):
1112
return TreeConfig(self)
1115
class BzrBranch5(BzrBranch):
1116
"""A format 5 branch. This supports new features over plan branches.
1118
It has support for a master_branch which is the data for bound branches.
1126
super(BzrBranch5, self).__init__(_format=_format,
1127
_control_files=_control_files,
1129
_repository=_repository)
1132
def pull(self, source, overwrite=False, stop_revision=None):
1133
"""Updates branch.pull to be bound branch aware."""
1134
bound_location = self.get_bound_location()
1135
if source.base != bound_location:
1136
# not pulling from master, so we need to update master.
1137
master_branch = self.get_master_branch()
1139
master_branch.pull(source)
1140
source = master_branch
1141
return super(BzrBranch5, self).pull(source, overwrite, stop_revision)
1143
def get_bound_location(self):
1145
return self.control_files.get_utf8('bound').read()[:-1]
1146
except errors.NoSuchFile:
1150
def get_master_branch(self):
1151
"""Return the branch we are bound to.
1153
:return: Either a Branch, or None
1155
This could memoise the branch, but if thats done
1156
it must be revalidated on each new lock.
1157
So for now we just dont memoise it.
1158
# RBC 20060304 review this decision.
1160
bound_loc = self.get_bound_location()
1164
return Branch.open(bound_loc)
1165
except (errors.NotBranchError, errors.ConnectionError), e:
1166
raise errors.BoundBranchConnectionFailure(
1170
def set_bound_location(self, location):
1171
"""Set the target where this branch is bound to.
1173
:param location: URL to the target branch
1176
self.control_files.put_utf8('bound', location+'\n')
1179
self.control_files._transport.delete('bound')
1185
def bind(self, other):
1186
"""Bind the local branch the other branch.
1188
:param other: The branch to bind to
1191
# TODO: jam 20051230 Consider checking if the target is bound
1192
# It is debatable whether you should be able to bind to
1193
# a branch which is itself bound.
1194
# Committing is obviously forbidden,
1195
# but binding itself may not be.
1196
# Since we *have* to check at commit time, we don't
1197
# *need* to check here
1200
# we are now equal to or a suffix of other.
1202
# Since we have 'pulled' from the remote location,
1203
# now we should try to pull in the opposite direction
1204
# in case the local tree has more revisions than the
1206
# There may be a different check you could do here
1207
# rather than actually trying to install revisions remotely.
1208
# TODO: capture an exception which indicates the remote branch
1210
# If it is up-to-date, this probably should not be a failure
1212
# lock other for write so the revision-history syncing cannot race
1216
# if this does not error, other now has the same last rev we do
1217
# it can only error if the pull from other was concurrent with
1218
# a commit to other from someone else.
1220
# until we ditch revision-history, we need to sync them up:
1221
self.set_revision_history(other.revision_history())
1222
# now other and self are up to date with each other and have the
1223
# same revision-history.
1184
def check_revno(self, revno):
1186
Check whether a revno corresponds to any revision.
1187
Zero (the NULL revision) is considered valid.
1190
self.check_real_revno(revno)
1192
def check_real_revno(self, revno):
1194
Check whether a revno corresponds to a real revision.
1195
Zero (the NULL revision) is considered invalid
1197
if revno < 1 or revno > self.revno():
1198
raise InvalidRevisionNumber(revno)
1200
def sign_revision(self, revision_id, gpg_strategy):
1201
plaintext = Testament.from_revision(self, revision_id).as_short_text()
1202
self.store_revision_signature(gpg_strategy, plaintext, revision_id)
1205
def store_revision_signature(self, gpg_strategy, plaintext, revision_id):
1206
self.revision_store.add(StringIO(gpg_strategy.sign(plaintext)),
1210
class ScratchBranch(_Branch):
1211
"""Special test class: a branch that cleans up after itself.
1213
>>> b = ScratchBranch()
1217
>>> b._transport.__del__()
1227
self.set_bound_location(other.base)
1231
"""If bound, unbind"""
1232
return self.set_bound_location(None)
1236
"""Synchronise this branch with the master branch if any.
1238
:return: None or the last_revision that was pivoted out during the
1241
master = self.get_master_branch()
1242
if master is not None:
1243
old_tip = self.last_revision()
1244
self.pull(master, overwrite=True)
1245
if old_tip in self.repository.get_ancestry(self.last_revision()):
1251
class BranchTestProviderAdapter(object):
1252
"""A tool to generate a suite testing multiple branch formats at once.
1254
This is done by copying the test once for each transport and injecting
1255
the transport_server, transport_readonly_server, and branch_format
1256
classes into each copy. Each copy is also given a new id() to make it
1222
def __init__(self, files=[], dirs=[], transport=None):
1223
"""Make a test branch.
1225
This creates a temporary directory and runs init-tree in it.
1227
If any files are listed, they are created in the working copy.
1229
if transport is None:
1230
transport = bzrlib.transport.local.ScratchTransport()
1231
super(ScratchBranch, self).__init__(transport, init=True)
1233
super(ScratchBranch, self).__init__(transport)
1236
self._transport.mkdir(d)
1239
self._transport.put(f, 'content of %s' % f)
1244
>>> orig = ScratchBranch(files=["file1", "file2"])
1245
>>> clone = orig.clone()
1246
>>> if os.name != 'nt':
1247
... os.path.samefile(orig.base, clone.base)
1249
... orig.base == clone.base
1252
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1255
from shutil import copytree
1256
from tempfile import mkdtemp
1259
copytree(self.base, base, symlinks=True)
1260
return ScratchBranch(
1261
transport=bzrlib.transport.local.ScratchTransport(base))
1260
def __init__(self, transport_server, transport_readonly_server, formats):
1261
self._transport_server = transport_server
1262
self._transport_readonly_server = transport_readonly_server
1263
self._formats = formats
1265
def adapt(self, test):
1266
result = TestSuite()
1267
for branch_format, bzrdir_format in self._formats:
1268
new_test = deepcopy(test)
1269
new_test.transport_server = self._transport_server
1270
new_test.transport_readonly_server = self._transport_readonly_server
1271
new_test.bzrdir_format = bzrdir_format
1272
new_test.branch_format = branch_format
1273
def make_new_test_id():
1274
new_id = "%s(%s)" % (new_test.id(), branch_format.__class__.__name__)
1275
return lambda: new_id
1276
new_test.id = make_new_test_id()
1277
result.addTest(new_test)
1264
1281
######################################################################
1268
def is_control_file(filename):
1269
## FIXME: better check
1270
filename = os.path.normpath(filename)
1271
while filename != '':
1272
head, tail = os.path.split(filename)
1273
## mutter('check %r for control file' % ((head, tail), ))
1274
if tail == bzrlib.BZRDIR:
1276
if filename == head:
1283
def gen_file_id(name):
1284
"""Return new file id.
1286
This should probably generate proper UUIDs, but for the moment we
1287
cope with just randomness because running uuidgen every time is
1290
from binascii import hexlify
1291
from time import time
1293
# get last component
1294
idx = name.rfind('/')
1296
name = name[idx+1 : ]
1297
idx = name.rfind('\\')
1299
name = name[idx+1 : ]
1301
# make it not a hidden file
1302
name = name.lstrip('.')
1304
# remove any wierd characters; we don't escape them but rather
1305
# just pull them out
1306
name = re.sub(r'[^\w.]', '', name)
1308
s = hexlify(rand_bytes(8))
1309
return '-'.join((name, compact_date(time()), s))
1313
"""Return a new tree-root file id."""
1314
return gen_file_id('TREE_ROOT')
1285
@deprecated_function(zero_eight)
1286
def ScratchBranch(*args, **kwargs):
1287
"""See bzrlib.bzrdir.ScratchDir."""
1288
d = ScratchDir(*args, **kwargs)
1289
return d.open_branch()
1292
@deprecated_function(zero_eight)
1293
def is_control_file(*args, **kwargs):
1294
"""See bzrlib.workingtree.is_control_file."""
1295
return bzrlib.workingtree.is_control_file(*args, **kwargs)