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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 cStringIO import StringIO
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import sys, os, os.path, random, time, sha, sets, types, re, shutil, tempfile
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import traceback, socket, fnmatch, difflib, time
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from binascii import hexlify
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from copy import deepcopy
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from unittest import TestSuite
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from warnings import warn
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from inventory import Inventory
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from trace import mutter, note
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from tree import Tree, EmptyTree, RevisionTree, WorkingTree
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from inventory import InventoryEntry, Inventory
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from osutils import isdir, quotefn, isfile, uuid, sha_file, username, \
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format_date, compact_date, pumpfile, user_email, rand_bytes, splitpath, \
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joinpath, sha_string, file_kind, local_time_offset, appendpath
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from store import ImmutableStore
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from revision import Revision
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from errors import bailout, BzrError
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from textui import show_status
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from diff import diff_trees
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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f = os.path.abspath(f)
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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head, tail = os.path.split(f)
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# reached the root, whatever that may be
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raise BzrError('%r is not in a branch' % orig_f)
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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, TreeConfig
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.errors import (BzrError, BzrCheckError, DivergedBranches,
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HistoryMissing, InvalidRevisionId,
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InvalidRevisionNumber, LockError, NoSuchFile,
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NoSuchRevision, NoWorkingTree, NotVersionedError,
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NotBranchError, UninitializableFormat,
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UnlistableStore, UnlistableBranch,
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from bzrlib.symbol_versioning import (deprecated_function,
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zero_eight, zero_nine,
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from bzrlib.trace import mutter, note
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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: 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 of the branch.
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Base directory/url of the branch.
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def __init__(self, base, init=False, find_root=True, lock_mode='w'):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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find_root -- If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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self.base = os.path.realpath(base)
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self.base = find_branch_root(base)
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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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raise NotImplementedError('The Branch class is abstract')
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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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@deprecated_method(zero_eight)
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def open_downlevel(base):
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"""Open a branch which may be of an old format."""
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return Branch.open(base, _unsupported=True)
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def open(base, _unsupported=False):
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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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return control.open_branch(_unsupported)
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def open_containing(url):
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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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@deprecated_function(zero_eight)
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def initialize(base):
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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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@deprecated_function(zero_eight)
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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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NOTE: This is unused.
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def get_config(self):
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return BranchConfig(self)
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return self.get_config().get_nickname()
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def _set_nick(self, nick):
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self.get_config().set_user_option('nickname', nick)
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nick = property(_get_nick, _set_nick)
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raise NotImplementedError(self.is_locked)
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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 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(self.abspath)
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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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nested_pb = ui.ui_factory.nested_progress_bar()
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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bailout("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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return '%s(%r)' % (self.__class__.__name__, self.base)
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def lock(self, mode='w'):
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"""Lock the on-disk branch, excluding other processes."""
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from_branch.lock_read()
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om = os.O_WRONLY | os.O_CREAT
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raise BzrError("invalid locking mode %r" % mode)
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lockfile = os.open(self.controlfilename('branch-lock'), om)
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if e.errno == errno.ENOENT:
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# might not exist on branches from <0.0.4
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self.controlfile('branch-lock', 'w').close()
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lockfile = os.open(self.controlfilename('branch-lock'), om)
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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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fcntl.lockf(lockfile, lm)
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fcntl.lockf(lockfile, fcntl.LOCK_UN)
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self._lockmode = None
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self._lockmode = mode
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warning("please write a locking method for platform %r" % sys.platform)
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self._lockmode = None
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self._lockmode = mode
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def _need_readlock(self):
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if self._lockmode not in ['r', 'w']:
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raise BzrError('need read lock on branch, only have %r' % self._lockmode)
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def _need_writelock(self):
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if self._lockmode not in ['w']:
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raise BzrError('need write lock on branch, only have %r' % self._lockmode)
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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rp = os.path.realpath(path)
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if not rp.startswith(self.base):
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bailout("path %r is not within branch %r" % (rp, self.base))
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rp = rp[len(self.base):]
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rp = rp.lstrip(os.sep)
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, types.StringTypes):
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file_or_path = [file_or_path]
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return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
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return file(fn, mode)
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elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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return codecs.open(fn, mode + 'b', 'utf-8',
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
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for d in ('text-store', 'inventory-store', 'revision-store'):
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name',
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self.controlfile(f, 'w').write('')
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mutter('created control directory in ' + self.base)
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Inventory().write_xml(self.controlfile('inventory','w'))
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def _check_format(self):
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"""Check this branch format is supported.
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The current tool only supports the current unstable format.
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In the future, we might need different in-memory Branch
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classes to support downlevel branches. But not yet.
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# This ignores newlines so that we can open branches created
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# on Windows from Linux and so on. I think it might be better
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# to always make all internal files in unix format.
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fmt = self.controlfile('branch-format', 'r').read()
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fmt.replace('\r\n', '')
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if fmt != BZR_BRANCH_FORMAT:
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bailout('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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def read_working_inventory(self):
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"""Read the working inventory."""
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self._need_readlock()
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# ElementTree does its own conversion from UTF-8, so open in
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inv = Inventory.read_xml(self.controlfile('inventory', 'rb'))
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mutter("loaded inventory of %d items in %f"
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% (len(inv), time.time() - before))
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def _write_inventory(self, inv):
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"""Update the working inventory.
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That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
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self._need_writelock()
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## TODO: factor out to atomicfile? is rename safe on windows?
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## TODO: Maybe some kind of clean/dirty marker on inventory?
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tmpfname = self.controlfilename('inventory.tmp')
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tmpf = file(tmpfname, 'wb')
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inv_fname = self.controlfilename('inventory')
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if sys.platform == 'win32':
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os.rename(tmpfname, inv_fname)
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mutter('wrote working inventory')
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inventory = property(read_working_inventory, _write_inventory, None,
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"""Inventory for the working copy.""")
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def add(self, files, verbose=False):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps return the ids of the files? But then again it
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is easy to retrieve them if they're needed.
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TODO: Option to specify file id.
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TODO: Adding a directory should optionally recurse down and
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add all non-ignored children. Perhaps do that in a
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>>> b = ScratchBranch(files=['foo'])
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>>> 'foo' in b.unknowns()
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>>> 'foo' in b.unknowns()
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>>> bool(b.inventory.path2id('foo'))
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Traceback (most recent call last):
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BzrError: ('foo is already versioned', [])
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>>> b.add(['nothere'])
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Traceback (most recent call last):
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BzrError: ('cannot add: not a regular file or directory: nothere', [])
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self._need_writelock()
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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if isinstance(files, types.StringTypes):
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inv = self.read_working_inventory()
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if is_control_file(f):
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bailout("cannot add control file %s" % quotefn(f))
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bailout("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
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bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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bailout('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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show_status('A', kind, quotefn(f))
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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def print_file(self, file, revno):
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# no history in the source branch
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last_revision = _mod_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 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_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):
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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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assert isinstance(revno, int)
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rh = self.revision_history()
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if not (1 <= revno <= len(rh)):
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raise InvalidRevisionNumber(revno)
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return self.repository.get_revision_delta(rh[revno-1])
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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(self.get_root_id)
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def print_file(self, file, revision_id):
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"""Print `file` to stdout."""
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self._need_readlock()
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tree = self.revision_tree(self.lookup_revision(revno))
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# use inventory as it was in that revision
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file_id = tree.inventory.path2id(file)
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bailout("%r is not present in revision %d" % (file, revno))
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tree.print_file(file_id)
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def remove(self, files, verbose=False):
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"""Mark nominated files for removal from the inventory.
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This does not remove their text. This does not run on
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TODO: Refuse to remove modified files unless --force is given?
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>>> b = ScratchBranch(files=['foo'])
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>>> b.inventory.has_filename('foo')
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>>> b.working_tree().has_filename('foo')
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>>> b.inventory.has_filename('foo')
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>>> b = ScratchBranch(files=['foo'])
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>>> b.inventory.has_filename('foo')
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>>> b.basis_tree().has_filename('foo')
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>>> b.working_tree().has_filename('foo')
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TODO: Do something useful with directories.
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TODO: Should this remove the text or not? Tough call; not
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removing may be useful and the user can just use use rm, and
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is the opposite of add. Removing it is consistent with most
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other tools. Maybe an option.
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## TODO: Normalize names
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## TODO: Remove nested loops; better scalability
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self._need_writelock()
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if isinstance(files, types.StringTypes):
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tree = self.working_tree()
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# do this before any modifications
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bailout("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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self._write_inventory(inv)
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"""Return all unknown files.
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These are files in the working directory that are not versioned or
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control files or ignored.
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>>> b = ScratchBranch(files=['foo', 'foo~'])
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>>> list(b.unknowns())
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>>> list(b.unknowns())
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>>> list(b.unknowns())
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return self.working_tree().unknowns()
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def commit(self, message, timestamp=None, timezone=None,
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"""Commit working copy as a new revision.
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The basic approach is to add all the file texts into the
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store, then the inventory, then make a new revision pointing
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to that inventory and store that.
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This is not quite safe if the working copy changes during the
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commit; for the moment that is simply not allowed. A better
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approach is to make a temporary copy of the files before
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computing their hashes, and then add those hashes in turn to
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the inventory. This should mean at least that there are no
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broken hash pointers. There is no way we can get a snapshot
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of the whole directory at an instant. This would also have to
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be robust against files disappearing, moving, etc. So the
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whole thing is a bit hard.
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timestamp -- if not None, seconds-since-epoch for a
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postdated/predated commit.
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self._need_writelock()
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## TODO: Show branch names
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# TODO: Don't commit if there are no changes, unless forced?
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# First walk over the working inventory; and both update that
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# and also build a new revision inventory. The revision
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# inventory needs to hold the text-id, sha1 and size of the
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# actual file versions committed in the revision. (These are
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# not present in the working inventory.) We also need to
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# detect missing/deleted files, and remove them from the
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work_inv = self.read_working_inventory()
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basis = self.basis_tree()
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basis_inv = basis.inventory
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for path, entry in work_inv.iter_entries():
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## TODO: Cope with files that have gone missing.
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## TODO: Check that the file kind has not changed from the previous
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## revision of this file (if any).
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p = self.abspath(path)
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file_id = entry.file_id
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mutter('commit prep file %s, id %r ' % (p, file_id))
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if not os.path.exists(p):
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mutter(" file is missing, removing from inventory")
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show_status('D', entry.kind, quotefn(path))
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missing_ids.append(file_id)
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# TODO: Handle files that have been deleted
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# TODO: Maybe a special case for empty files? Seems a
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# waste to store them many times.
533
if basis_inv.has_id(file_id):
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old_kind = basis_inv[file_id].kind
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if old_kind != entry.kind:
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bailout("entry %r changed kind from %r to %r"
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% (file_id, old_kind, entry.kind))
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if entry.kind == 'directory':
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bailout("%s is entered as directory but not a directory" % quotefn(p))
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elif entry.kind == 'file':
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bailout("%s is entered as file but is not a file" % quotefn(p))
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content = file(p, 'rb').read()
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entry.text_sha1 = sha_string(content)
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entry.text_size = len(content)
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old_ie = basis_inv.has_id(file_id) and basis_inv[file_id]
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and (old_ie.text_size == entry.text_size)
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and (old_ie.text_sha1 == entry.text_sha1)):
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## assert content == basis.get_file(file_id).read()
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entry.text_id = basis_inv[file_id].text_id
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mutter(' unchanged from previous text_id {%s}' %
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entry.text_id = gen_file_id(entry.name)
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self.text_store.add(content, entry.text_id)
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mutter(' stored with text_id {%s}' % entry.text_id)
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elif (old_ie.name == entry.name
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and old_ie.parent_id == entry.parent_id):
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show_status(state, entry.kind, quotefn(path))
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for file_id in missing_ids:
576
# have to do this later so we don't mess up the iterator.
577
# since parents may be removed before their children we
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# FIXME: There's probably a better way to do this; perhaps
581
# the workingtree should know how to filter itself.
582
if work_inv.has_id(file_id):
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del work_inv[file_id]
586
inv_id = rev_id = _gen_revision_id(time.time())
588
inv_tmp = tempfile.TemporaryFile()
589
inv.write_xml(inv_tmp)
591
self.inventory_store.add(inv_tmp, inv_id)
592
mutter('new inventory_id is {%s}' % inv_id)
594
self._write_inventory(work_inv)
596
if timestamp == None:
597
timestamp = time.time()
599
if committer == None:
600
committer = username()
603
timezone = local_time_offset()
605
mutter("building commit log message")
606
rev = Revision(timestamp=timestamp,
609
precursor = self.last_patch(),
614
rev_tmp = tempfile.TemporaryFile()
615
rev.write_xml(rev_tmp)
617
self.revision_store.add(rev_tmp, rev_id)
618
mutter("new revision_id is {%s}" % rev_id)
620
## XXX: Everything up to here can simply be orphaned if we abort
621
## the commit; it will leave junk files behind but that doesn't
624
## TODO: Read back the just-generated changeset, and make sure it
625
## applies and recreates the right state.
627
## TODO: Also calculate and store the inventory SHA1
628
mutter("committing patch r%d" % (self.revno() + 1))
631
self.append_revision(rev_id)
634
note("commited r%d" % self.revno())
637
def append_revision(self, revision_id):
638
mutter("add {%s} to revision-history" % revision_id)
639
rev_history = self.revision_history()
641
tmprhname = self.controlfilename('revision-history.tmp')
642
rhname = self.controlfilename('revision-history')
644
f = file(tmprhname, 'wt')
645
rev_history.append(revision_id)
646
f.write('\n'.join(rev_history))
650
if sys.platform == 'win32':
652
os.rename(tmprhname, rhname)
656
def get_revision(self, revision_id):
657
"""Return the Revision object for a named revision"""
658
self._need_readlock()
659
r = Revision.read_xml(self.revision_store[revision_id])
660
assert r.revision_id == revision_id
664
def get_inventory(self, inventory_id):
665
"""Get Inventory object by hash.
667
TODO: Perhaps for this and similar methods, take a revision
668
parameter which can be either an integer revno or a
670
self._need_readlock()
671
i = Inventory.read_xml(self.inventory_store[inventory_id])
675
def get_revision_inventory(self, revision_id):
676
"""Return inventory of a past revision."""
677
self._need_readlock()
678
if revision_id == None:
681
return self.get_inventory(self.get_revision(revision_id).inventory_id)
293
raise NotImplementedError(self.print_file)
295
def append_revision(self, *revision_ids):
296
raise NotImplementedError(self.append_revision)
298
def set_revision_history(self, rev_history):
299
raise NotImplementedError(self.set_revision_history)
684
301
def revision_history(self):
685
"""Return sequence of revision hashes on to this branch.
687
>>> ScratchBranch().revision_history()
690
self._need_readlock()
691
return [l.rstrip('\r\n') for l in self.controlfile('revision-history', 'r').readlines()]
694
def enum_history(self, direction):
695
"""Return (revno, revision_id) for history of branch.
698
'forward' is from earliest to latest
699
'reverse' is from latest to earliest
701
rh = self.revision_history()
702
if direction == 'forward':
707
elif direction == 'reverse':
713
raise BzrError('invalid history direction %r' % direction)
302
"""Return sequence of revision hashes on to this branch."""
303
raise NotImplementedError(self.revision_history)
717
306
"""Return current revision number for this branch.
719
308
That is equivalent to the number of revisions committed to
722
>>> b = ScratchBranch()
725
>>> b.commit('no foo')
729
311
return len(self.revision_history())
732
def last_patch(self):
733
"""Return last patch hash, or None if no history.
735
>>> ScratchBranch().last_patch() == None
314
"""Older format branches cannot bind or unbind."""
315
raise errors.UpgradeRequired(self.base)
317
def last_revision(self):
318
"""Return last revision id, or None"""
738
319
ph = self.revision_history()
325
def missing_revisions(self, other, stop_revision=None):
326
"""Return a list of new revisions that would perfectly fit.
745
def lookup_revision(self, revno):
746
"""Return revision hash for revision number."""
328
If self and other have not diverged, return a list of the revisions
329
present in other, but missing from self.
331
self_history = self.revision_history()
332
self_len = len(self_history)
333
other_history = other.revision_history()
334
other_len = len(other_history)
335
common_index = min(self_len, other_len) -1
336
if common_index >= 0 and \
337
self_history[common_index] != other_history[common_index]:
338
raise DivergedBranches(self, other)
340
if stop_revision is None:
341
stop_revision = other_len
343
assert isinstance(stop_revision, int)
344
if stop_revision > other_len:
345
raise errors.NoSuchRevision(self, stop_revision)
346
return other_history[self_len:stop_revision]
348
def update_revisions(self, other, stop_revision=None):
349
"""Pull in new perfect-fit revisions.
351
:param other: Another Branch to pull from
352
:param stop_revision: Updated until the given revision
355
raise NotImplementedError(self.update_revisions)
357
def revision_id_to_revno(self, revision_id):
358
"""Given a revision id, return its revno"""
359
if revision_id is None:
361
history = self.revision_history()
363
return history.index(revision_id) + 1
365
raise bzrlib.errors.NoSuchRevision(self, revision_id)
367
def get_rev_id(self, revno, history=None):
368
"""Find the revision id of the specified revno."""
751
# list is 0-based; revisions are 1-based
752
return self.revision_history()[revno-1]
754
raise BzrError("no such revision %s" % revno)
757
def revision_tree(self, revision_id):
758
"""Return Tree for a revision on this branch.
760
`revision_id` may be None for the null revision, in which case
761
an `EmptyTree` is returned."""
762
self._need_readlock()
763
if revision_id == None:
766
inv = self.get_revision_inventory(revision_id)
767
return RevisionTree(self.text_store, inv)
770
def working_tree(self):
771
"""Return a `Tree` for the working copy."""
772
return WorkingTree(self.base, self.read_working_inventory())
372
history = self.revision_history()
373
if revno <= 0 or revno > len(history):
374
raise bzrlib.errors.NoSuchRevision(self, revno)
375
return history[revno - 1]
377
def pull(self, source, overwrite=False, stop_revision=None):
378
raise NotImplementedError(self.pull)
775
380
def basis_tree(self):
776
"""Return `Tree` object for last revision.
778
If there are no revisions yet, return an `EmptyTree`.
780
>>> b = ScratchBranch(files=['foo'])
781
>>> b.basis_tree().has_filename('foo')
783
>>> b.working_tree().has_filename('foo')
786
>>> b.commit('add foo')
787
>>> b.basis_tree().has_filename('foo')
790
r = self.last_patch()
794
return RevisionTree(self.text_store, self.get_revision_inventory(r))
381
"""Return `Tree` object for last revision."""
382
return self.repository.revision_tree(self.last_revision())
798
384
def rename_one(self, from_rel, to_rel):
799
385
"""Rename one file.
801
387
This can change the directory or the filename or both.
803
self._need_writelock()
804
tree = self.working_tree()
806
if not tree.has_filename(from_rel):
807
bailout("can't rename: old working file %r does not exist" % from_rel)
808
if tree.has_filename(to_rel):
809
bailout("can't rename: new working file %r already exists" % to_rel)
811
file_id = inv.path2id(from_rel)
813
bailout("can't rename: old name %r is not versioned" % from_rel)
815
if inv.path2id(to_rel):
816
bailout("can't rename: new name %r is already versioned" % to_rel)
818
to_dir, to_tail = os.path.split(to_rel)
819
to_dir_id = inv.path2id(to_dir)
820
if to_dir_id == None and to_dir != '':
821
bailout("can't determine destination directory id for %r" % to_dir)
823
mutter("rename_one:")
824
mutter(" file_id {%s}" % file_id)
825
mutter(" from_rel %r" % from_rel)
826
mutter(" to_rel %r" % to_rel)
827
mutter(" to_dir %r" % to_dir)
828
mutter(" to_dir_id {%s}" % to_dir_id)
830
inv.rename(file_id, to_dir_id, to_tail)
832
print "%s => %s" % (from_rel, to_rel)
834
from_abs = self.abspath(from_rel)
835
to_abs = self.abspath(to_rel)
837
os.rename(from_abs, to_abs)
839
bailout("failed to rename %r to %r: %s"
840
% (from_abs, to_abs, e[1]),
841
["rename rolled back"])
843
self._write_inventory(inv)
389
raise NotImplementedError(self.rename_one)
847
391
def move(self, from_paths, to_name):
855
399
Note that to_name is only the last component of the new name;
856
400
this doesn't change the directory.
858
self._need_writelock()
859
## TODO: Option to move IDs only
860
assert not isinstance(from_paths, basestring)
861
tree = self.working_tree()
863
to_abs = self.abspath(to_name)
864
if not isdir(to_abs):
865
bailout("destination %r is not a directory" % to_abs)
866
if not tree.has_filename(to_name):
867
bailout("destination %r not in working directory" % to_abs)
868
to_dir_id = inv.path2id(to_name)
869
if to_dir_id == None and to_name != '':
870
bailout("destination %r is not a versioned directory" % to_name)
871
to_dir_ie = inv[to_dir_id]
872
if to_dir_ie.kind not in ('directory', 'root_directory'):
873
bailout("destination %r is not a directory" % to_abs)
875
to_idpath = Set(inv.get_idpath(to_dir_id))
878
if not tree.has_filename(f):
879
bailout("%r does not exist in working tree" % f)
880
f_id = inv.path2id(f)
882
bailout("%r is not versioned" % f)
883
name_tail = splitpath(f)[-1]
884
dest_path = appendpath(to_name, name_tail)
885
if tree.has_filename(dest_path):
886
bailout("destination %r already exists" % dest_path)
887
if f_id in to_idpath:
888
bailout("can't move %r to a subdirectory of itself" % f)
890
# OK, so there's a race here, it's possible that someone will
891
# create a file in this interval and then the rename might be
892
# left half-done. But we should have caught most problems.
895
name_tail = splitpath(f)[-1]
896
dest_path = appendpath(to_name, name_tail)
897
print "%s => %s" % (f, dest_path)
898
inv.rename(inv.path2id(f), to_dir_id, name_tail)
900
os.rename(self.abspath(f), self.abspath(dest_path))
902
bailout("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
903
["rename rolled back"])
905
self._write_inventory(inv)
909
def show_status(self, show_all=False, file_list=None):
910
"""Display single-line status for non-ignored working files.
912
The list is show sorted in order by file name.
914
>>> b = ScratchBranch(files=['foo', 'foo~'])
920
>>> b.commit("add foo")
922
>>> os.unlink(b.abspath('foo'))
926
self._need_readlock()
928
# We have to build everything into a list first so that it can
929
# sorted by name, incorporating all the different sources.
931
# FIXME: Rather than getting things in random order and then sorting,
932
# just step through in order.
934
# Interesting case: the old ID for a file has been removed,
935
# but a new file has been created under that name.
937
old = self.basis_tree()
938
new = self.working_tree()
940
items = diff_trees(old, new)
941
# We want to filter out only if any file was provided in the file_list.
942
if isinstance(file_list, list) and len(file_list):
943
items = [item for item in items if item[3] in file_list]
945
for fs, fid, oldname, newname, kind in items:
947
show_status(fs, kind,
948
oldname + ' => ' + newname)
949
elif fs == 'A' or fs == 'M':
950
show_status(fs, kind, newname)
952
show_status(fs, kind, oldname)
955
show_status(fs, kind, newname)
958
show_status(fs, kind, newname)
960
show_status(fs, kind, newname)
962
bailout("weird file state %r" % ((fs, fid),))
966
class ScratchBranch(Branch):
967
"""Special test class: a branch that cleans up after itself.
969
>>> b = ScratchBranch()
977
def __init__(self, files=[], dirs=[]):
978
"""Make a test branch.
980
This creates a temporary directory and runs init-tree in it.
982
If any files are listed, they are created in the working copy.
984
Branch.__init__(self, tempfile.mkdtemp(), init=True)
986
os.mkdir(self.abspath(d))
402
This returns a list of (from_path, to_path) pairs for each
405
raise NotImplementedError(self.move)
407
def get_parent(self):
408
"""Return the parent location of the branch.
410
This is the default location for push/pull/missing. The usual
411
pattern is that the user can override it by specifying a
414
raise NotImplementedError(self.get_parent)
416
def get_submit_branch(self):
417
"""Return the submit location of the branch.
419
This is the default location for bundle. The usual
420
pattern is that the user can override it by specifying a
423
return self.get_config().get_user_option('submit_branch')
425
def set_submit_branch(self, location):
426
"""Return the submit location of the branch.
428
This is the default location for bundle. The usual
429
pattern is that the user can override it by specifying a
432
self.get_config().set_user_option('submit_branch', location)
434
def get_push_location(self):
435
"""Return the None or the location to push this branch to."""
436
raise NotImplementedError(self.get_push_location)
438
def set_push_location(self, location):
439
"""Set a new push location for this branch."""
440
raise NotImplementedError(self.set_push_location)
442
def set_parent(self, url):
443
raise NotImplementedError(self.set_parent)
447
"""Synchronise this branch with the master branch if any.
449
:return: None or the last_revision pivoted out during the update.
453
def check_revno(self, revno):
455
Check whether a revno corresponds to any revision.
456
Zero (the NULL revision) is considered valid.
459
self.check_real_revno(revno)
989
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
996
"""Destroy the test branch, removing the scratch directory."""
998
mutter("delete ScratchBranch %s" % self.base)
999
shutil.rmtree(self.base)
1001
# Work around for shutil.rmtree failing on Windows when
1002
# readonly files are encountered
1003
mutter("hit exception in destroying ScratchBranch: %s" % e)
1004
for root, dirs, files in os.walk(self.base, topdown=False):
1006
os.chmod(os.path.join(root, name), 0700)
1007
shutil.rmtree(self.base)
461
def check_real_revno(self, revno):
463
Check whether a revno corresponds to a real revision.
464
Zero (the NULL revision) is considered invalid
466
if revno < 1 or revno > self.revno():
467
raise InvalidRevisionNumber(revno)
470
def clone(self, *args, **kwargs):
471
"""Clone this branch into to_bzrdir preserving all semantic values.
473
revision_id: if not None, the revision history in the new branch will
474
be truncated to end with revision_id.
476
# for API compatibility, until 0.8 releases we provide the old api:
477
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
478
# after 0.8 releases, the *args and **kwargs should be changed:
479
# def clone(self, to_bzrdir, revision_id=None):
480
if (kwargs.get('to_location', None) or
481
kwargs.get('revision', None) or
482
kwargs.get('basis_branch', None) or
483
(len(args) and isinstance(args[0], basestring))):
484
# backwards compatibility api:
485
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
486
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
489
basis_branch = args[2]
491
basis_branch = kwargs.get('basis_branch', None)
493
basis = basis_branch.bzrdir
498
revision_id = args[1]
500
revision_id = kwargs.get('revision', None)
505
# no default to raise if not provided.
506
url = kwargs.get('to_location')
507
return self.bzrdir.clone(url,
508
revision_id=revision_id,
509
basis=basis).open_branch()
511
# generate args by hand
513
revision_id = args[1]
515
revision_id = kwargs.get('revision_id', None)
519
# no default to raise if not provided.
520
to_bzrdir = kwargs.get('to_bzrdir')
521
result = self._format.initialize(to_bzrdir)
522
self.copy_content_into(result, revision_id=revision_id)
526
def sprout(self, to_bzrdir, revision_id=None):
527
"""Create a new line of development from the branch, into to_bzrdir.
529
revision_id: if not None, the revision history in the new branch will
530
be truncated to end with revision_id.
532
result = self._format.initialize(to_bzrdir)
533
self.copy_content_into(result, revision_id=revision_id)
534
result.set_parent(self.bzrdir.root_transport.base)
538
def copy_content_into(self, destination, revision_id=None):
539
"""Copy the content of self into destination.
541
revision_id: if not None, the revision history in the new branch will
542
be truncated to end with revision_id.
544
new_history = self.revision_history()
545
if revision_id is not None:
547
new_history = new_history[:new_history.index(revision_id) + 1]
549
rev = self.repository.get_revision(revision_id)
550
new_history = rev.get_history(self.repository)[1:]
551
destination.set_revision_history(new_history)
553
parent = self.get_parent()
554
except errors.InaccessibleParent, e:
555
mutter('parent was not accessible to copy: %s', e)
558
destination.set_parent(parent)
562
"""Check consistency of the branch.
564
In particular this checks that revisions given in the revision-history
565
do actually match up in the revision graph, and that they're all
566
present in the repository.
568
Callers will typically also want to check the repository.
570
:return: A BranchCheckResult.
572
mainline_parent_id = None
573
for revision_id in self.revision_history():
575
revision = self.repository.get_revision(revision_id)
576
except errors.NoSuchRevision, e:
577
raise errors.BzrCheckError("mainline revision {%s} not in repository"
579
# In general the first entry on the revision history has no parents.
580
# But it's not illegal for it to have parents listed; this can happen
581
# in imports from Arch when the parents weren't reachable.
582
if mainline_parent_id is not None:
583
if mainline_parent_id not in revision.parent_ids:
584
raise errors.BzrCheckError("previous revision {%s} not listed among "
586
% (mainline_parent_id, revision_id))
587
mainline_parent_id = revision_id
588
return BranchCheckResult(self)
590
def _get_checkout_format(self):
591
"""Return the most suitable metadir for a checkout of this branch.
592
Weaves are used if this branch's repostory uses weaves.
594
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
595
from bzrlib import repository
596
format = bzrdir.BzrDirMetaFormat1()
597
format.repository_format = repository.RepositoryFormat7()
599
format = self.repository.bzrdir.cloning_metadir()
602
def create_checkout(self, to_location, revision_id=None,
604
"""Create a checkout of a branch.
606
:param to_location: The url to produce the checkout at
607
:param revision_id: The revision to check out
608
:param lightweight: If True, produce a lightweight checkout, otherwise,
609
produce a bound branch (heavyweight checkout)
610
:return: The tree of the created checkout
612
t = transport.get_transport(to_location)
615
except errors.FileExists:
618
checkout = bzrdir.BzrDirMetaFormat1().initialize_on_transport(t)
619
BranchReferenceFormat().initialize(checkout, self)
621
format = self._get_checkout_format()
622
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
623
to_location, force_new_tree=False, format=format)
624
checkout = checkout_branch.bzrdir
625
checkout_branch.bind(self)
626
# pull up to the specified revision_id to set the initial
627
# branch tip correctly, and seed it with history.
628
checkout_branch.pull(self, stop_revision=revision_id)
629
return checkout.create_workingtree(revision_id)
632
class BranchFormat(object):
633
"""An encapsulation of the initialization and open routines for a format.
635
Formats provide three things:
636
* An initialization routine,
640
Formats are placed in an dict by their format string for reference
641
during branch opening. Its not required that these be instances, they
642
can be classes themselves with class methods - it simply depends on
643
whether state is needed for a given format or not.
645
Once a format is deprecated, just deprecate the initialize and open
646
methods on the format class. Do not deprecate the object, as the
647
object will be created every time regardless.
650
_default_format = None
651
"""The default format used for new branches."""
654
"""The known formats."""
657
def find_format(klass, a_bzrdir):
658
"""Return the format for the branch object in a_bzrdir."""
660
transport = a_bzrdir.get_branch_transport(None)
661
format_string = transport.get("format").read()
662
return klass._formats[format_string]
664
raise NotBranchError(path=transport.base)
666
raise errors.UnknownFormatError(format=format_string)
669
def get_default_format(klass):
670
"""Return the current default format."""
671
return klass._default_format
673
def get_format_string(self):
674
"""Return the ASCII format string that identifies this format."""
675
raise NotImplementedError(self.get_format_string)
677
def get_format_description(self):
678
"""Return the short format description for this format."""
679
raise NotImplementedError(self.get_format_string)
681
def initialize(self, a_bzrdir):
682
"""Create a branch of this format in a_bzrdir."""
683
raise NotImplementedError(self.initialize)
685
def is_supported(self):
686
"""Is this format supported?
688
Supported formats can be initialized and opened.
689
Unsupported formats may not support initialization or committing or
690
some other features depending on the reason for not being supported.
694
def open(self, a_bzrdir, _found=False):
695
"""Return the branch object for a_bzrdir
697
_found is a private parameter, do not use it. It is used to indicate
698
if format probing has already be done.
700
raise NotImplementedError(self.open)
703
def register_format(klass, format):
704
klass._formats[format.get_format_string()] = format
707
def set_default_format(klass, format):
708
klass._default_format = format
711
def unregister_format(klass, format):
712
assert klass._formats[format.get_format_string()] is format
713
del klass._formats[format.get_format_string()]
716
return self.get_format_string().rstrip()
719
class BzrBranchFormat4(BranchFormat):
720
"""Bzr branch format 4.
723
- a revision-history file.
724
- a branch-lock lock file [ to be shared with the bzrdir ]
727
def get_format_description(self):
728
"""See BranchFormat.get_format_description()."""
729
return "Branch format 4"
731
def initialize(self, a_bzrdir):
732
"""Create a branch of this format in a_bzrdir."""
733
mutter('creating branch in %s', a_bzrdir.transport.base)
734
branch_transport = a_bzrdir.get_branch_transport(self)
735
utf8_files = [('revision-history', ''),
738
control_files = lockable_files.LockableFiles(branch_transport,
739
'branch-lock', lockable_files.TransportLock)
740
control_files.create_lock()
741
control_files.lock_write()
743
for file, content in utf8_files:
744
control_files.put_utf8(file, content)
746
control_files.unlock()
747
return self.open(a_bzrdir, _found=True)
750
super(BzrBranchFormat4, self).__init__()
751
self._matchingbzrdir = bzrdir.BzrDirFormat6()
753
def open(self, a_bzrdir, _found=False):
754
"""Return the branch object for a_bzrdir
756
_found is a private parameter, do not use it. It is used to indicate
757
if format probing has already be done.
760
# we are being called directly and must probe.
761
raise NotImplementedError
762
return BzrBranch(_format=self,
763
_control_files=a_bzrdir._control_files,
765
_repository=a_bzrdir.open_repository())
768
return "Bazaar-NG branch format 4"
771
class BzrBranchFormat5(BranchFormat):
772
"""Bzr branch format 5.
775
- a revision-history file.
777
- a lock dir guarding the branch itself
778
- all of this stored in a branch/ subdirectory
779
- works with shared repositories.
781
This format is new in bzr 0.8.
784
def get_format_string(self):
785
"""See BranchFormat.get_format_string()."""
786
return "Bazaar-NG branch format 5\n"
788
def get_format_description(self):
789
"""See BranchFormat.get_format_description()."""
790
return "Branch format 5"
792
def initialize(self, a_bzrdir):
793
"""Create a branch of this format in a_bzrdir."""
794
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
795
branch_transport = a_bzrdir.get_branch_transport(self)
796
utf8_files = [('revision-history', ''),
799
control_files = lockable_files.LockableFiles(branch_transport, 'lock',
801
control_files.create_lock()
802
control_files.lock_write()
803
control_files.put_utf8('format', self.get_format_string())
805
for file, content in utf8_files:
806
control_files.put_utf8(file, content)
808
control_files.unlock()
809
return self.open(a_bzrdir, _found=True, )
812
super(BzrBranchFormat5, self).__init__()
813
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
815
def open(self, a_bzrdir, _found=False):
816
"""Return the branch object for a_bzrdir
818
_found is a private parameter, do not use it. It is used to indicate
819
if format probing has already be done.
822
format = BranchFormat.find_format(a_bzrdir)
823
assert format.__class__ == self.__class__
824
transport = a_bzrdir.get_branch_transport(None)
825
control_files = lockable_files.LockableFiles(transport, 'lock',
827
return BzrBranch5(_format=self,
828
_control_files=control_files,
830
_repository=a_bzrdir.find_repository())
833
return "Bazaar-NG Metadir branch format 5"
836
class BranchReferenceFormat(BranchFormat):
837
"""Bzr branch reference format.
839
Branch references are used in implementing checkouts, they
840
act as an alias to the real branch which is at some other url.
847
def get_format_string(self):
848
"""See BranchFormat.get_format_string()."""
849
return "Bazaar-NG Branch Reference Format 1\n"
851
def get_format_description(self):
852
"""See BranchFormat.get_format_description()."""
853
return "Checkout reference format 1"
855
def initialize(self, a_bzrdir, target_branch=None):
856
"""Create a branch of this format in a_bzrdir."""
857
if target_branch is None:
858
# this format does not implement branch itself, thus the implicit
859
# creation contract must see it as uninitializable
860
raise errors.UninitializableFormat(self)
861
mutter('creating branch reference in %s', a_bzrdir.transport.base)
862
branch_transport = a_bzrdir.get_branch_transport(self)
863
branch_transport.put_bytes('location',
864
target_branch.bzrdir.root_transport.base)
865
branch_transport.put_bytes('format', self.get_format_string())
866
return self.open(a_bzrdir, _found=True)
869
super(BranchReferenceFormat, self).__init__()
870
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
872
def _make_reference_clone_function(format, a_branch):
873
"""Create a clone() routine for a branch dynamically."""
874
def clone(to_bzrdir, revision_id=None):
875
"""See Branch.clone()."""
876
return format.initialize(to_bzrdir, a_branch)
877
# cannot obey revision_id limits when cloning a reference ...
878
# FIXME RBC 20060210 either nuke revision_id for clone, or
879
# emit some sort of warning/error to the caller ?!
882
def open(self, a_bzrdir, _found=False):
883
"""Return the branch that the branch reference in a_bzrdir points at.
885
_found is a private parameter, do not use it. It is used to indicate
886
if format probing has already be done.
889
format = BranchFormat.find_format(a_bzrdir)
890
assert format.__class__ == self.__class__
891
transport = a_bzrdir.get_branch_transport(None)
892
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
893
result = real_bzrdir.open_branch()
894
# this changes the behaviour of result.clone to create a new reference
895
# rather than a copy of the content of the branch.
896
# I did not use a proxy object because that needs much more extensive
897
# testing, and we are only changing one behaviour at the moment.
898
# If we decide to alter more behaviours - i.e. the implicit nickname
899
# then this should be refactored to introduce a tested proxy branch
900
# and a subclass of that for use in overriding clone() and ....
902
result.clone = self._make_reference_clone_function(result)
906
# formats which have no format string are not discoverable
907
# and not independently creatable, so are not registered.
908
__default_format = BzrBranchFormat5()
909
BranchFormat.register_format(__default_format)
910
BranchFormat.register_format(BranchReferenceFormat())
911
BranchFormat.set_default_format(__default_format)
912
_legacy_formats = [BzrBranchFormat4(),
915
class BzrBranch(Branch):
916
"""A branch stored in the actual filesystem.
918
Note that it's "local" in the context of the filesystem; it doesn't
919
really matter if it's on an nfs/smb/afs/coda/... share, as long as
920
it's writable, and can be accessed via the normal filesystem API.
923
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
924
relax_version_check=DEPRECATED_PARAMETER, _format=None,
925
_control_files=None, a_bzrdir=None, _repository=None):
926
"""Create new branch object at a particular location.
928
transport -- A Transport object, defining how to access files.
930
init -- If True, create new control files in a previously
931
unversioned directory. If False, the branch must already
934
relax_version_check -- If true, the usual check for the branch
935
version is not applied. This is intended only for
936
upgrade/recovery type use; it's not guaranteed that
937
all operations will work on old format branches.
940
self.bzrdir = bzrdir.BzrDir.open(transport.base)
942
self.bzrdir = a_bzrdir
943
self._transport = self.bzrdir.transport.clone('..')
944
self._base = self._transport.base
945
self._format = _format
946
if _control_files is None:
947
raise ValueError('BzrBranch _control_files is None')
948
self.control_files = _control_files
949
if deprecated_passed(init):
950
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
951
"deprecated as of bzr 0.8. Please use Branch.create().",
955
# this is slower than before deprecation, oh well never mind.
957
self._initialize(transport.base)
958
self._check_format(_format)
959
if deprecated_passed(relax_version_check):
960
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
961
"relax_version_check parameter is deprecated as of bzr 0.8. "
962
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
966
if (not relax_version_check
967
and not self._format.is_supported()):
968
raise errors.UnsupportedFormatError(format=fmt)
969
if deprecated_passed(transport):
970
warn("BzrBranch.__init__(transport=XXX...): The transport "
971
"parameter is deprecated as of bzr 0.8. "
972
"Please use Branch.open, or bzrdir.open_branch().",
975
self.repository = _repository
978
return '%s(%r)' % (self.__class__.__name__, self.base)
985
base = property(_get_base, doc="The URL for the root of this branch.")
987
def _finish_transaction(self):
988
"""Exit the current transaction."""
989
return self.control_files._finish_transaction()
991
def get_transaction(self):
992
"""Return the current active transaction.
994
If no transaction is active, this returns a passthrough object
995
for which all data is immediately flushed and no caching happens.
997
# this is an explicit function so that we can do tricky stuff
998
# when the storage in rev_storage is elsewhere.
999
# we probably need to hook the two 'lock a location' and
1000
# 'have a transaction' together more delicately, so that
1001
# we can have two locks (branch and storage) and one transaction
1002
# ... and finishing the transaction unlocks both, but unlocking
1003
# does not. - RBC 20051121
1004
return self.control_files.get_transaction()
1006
def _set_transaction(self, transaction):
1007
"""Set a new active transaction."""
1008
return self.control_files._set_transaction(transaction)
1010
def abspath(self, name):
1011
"""See Branch.abspath."""
1012
return self.control_files._transport.abspath(name)
1014
def _check_format(self, format):
1015
"""Identify the branch format if needed.
1017
The format is stored as a reference to the format object in
1018
self._format for code that needs to check it later.
1020
The format parameter is either None or the branch format class
1021
used to open this branch.
1023
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
1026
format = BranchFormat.find_format(self.bzrdir)
1027
self._format = format
1028
mutter("got branch format %s", self._format)
1031
def get_root_id(self):
1032
"""See Branch.get_root_id."""
1033
tree = self.repository.revision_tree(self.last_revision())
1034
return tree.inventory.root.file_id
1036
def is_locked(self):
1037
return self.control_files.is_locked()
1039
def lock_write(self):
1040
self.repository.lock_write()
1042
self.control_files.lock_write()
1044
self.repository.unlock()
1047
def lock_read(self):
1048
self.repository.lock_read()
1050
self.control_files.lock_read()
1052
self.repository.unlock()
1056
# TODO: test for failed two phase locks. This is known broken.
1058
self.control_files.unlock()
1060
self.repository.unlock()
1062
def peek_lock_mode(self):
1063
if self.control_files._lock_count == 0:
1066
return self.control_files._lock_mode
1068
def get_physical_lock_status(self):
1069
return self.control_files.get_physical_lock_status()
1072
def print_file(self, file, revision_id):
1073
"""See Branch.print_file."""
1074
return self.repository.print_file(file, revision_id)
1077
def append_revision(self, *revision_ids):
1078
"""See Branch.append_revision."""
1079
for revision_id in revision_ids:
1080
mutter("add {%s} to revision-history" % revision_id)
1081
rev_history = self.revision_history()
1082
rev_history.extend(revision_ids)
1083
self.set_revision_history(rev_history)
1086
def set_revision_history(self, rev_history):
1087
"""See Branch.set_revision_history."""
1088
self.control_files.put_utf8(
1089
'revision-history', '\n'.join(rev_history))
1090
transaction = self.get_transaction()
1091
history = transaction.map.find_revision_history()
1092
if history is not None:
1093
# update the revision history in the identity map.
1094
history[:] = list(rev_history)
1095
# this call is disabled because revision_history is
1096
# not really an object yet, and the transaction is for objects.
1097
# transaction.register_dirty(history)
1099
transaction.map.add_revision_history(rev_history)
1100
# this call is disabled because revision_history is
1101
# not really an object yet, and the transaction is for objects.
1102
# transaction.register_clean(history)
1105
def revision_history(self):
1106
"""See Branch.revision_history."""
1107
transaction = self.get_transaction()
1108
history = transaction.map.find_revision_history()
1109
if history is not None:
1110
# mutter("cache hit for revision-history in %s", self)
1111
return list(history)
1112
decode_utf8 = cache_utf8.decode
1113
history = [decode_utf8(l.rstrip('\r\n')) for l in
1114
self.control_files.get('revision-history').readlines()]
1115
transaction.map.add_revision_history(history)
1116
# this call is disabled because revision_history is
1117
# not really an object yet, and the transaction is for objects.
1118
# transaction.register_clean(history, precious=True)
1119
return list(history)
1122
def generate_revision_history(self, revision_id, last_rev=None,
1124
"""Create a new revision history that will finish with revision_id.
1126
:param revision_id: the new tip to use.
1127
:param last_rev: The previous last_revision. If not None, then this
1128
must be a ancestory of revision_id, or DivergedBranches is raised.
1129
:param other_branch: The other branch that DivergedBranches should
1130
raise with respect to.
1132
# stop_revision must be a descendant of last_revision
1133
stop_graph = self.repository.get_revision_graph(revision_id)
1134
if last_rev is not None and last_rev not in stop_graph:
1135
# our previous tip is not merged into stop_revision
1136
raise errors.DivergedBranches(self, other_branch)
1137
# make a new revision history from the graph
1138
current_rev_id = revision_id
1140
while current_rev_id not in (None, _mod_revision.NULL_REVISION):
1141
new_history.append(current_rev_id)
1142
current_rev_id_parents = stop_graph[current_rev_id]
1144
current_rev_id = current_rev_id_parents[0]
1146
current_rev_id = None
1147
new_history.reverse()
1148
self.set_revision_history(new_history)
1151
def update_revisions(self, other, stop_revision=None):
1152
"""See Branch.update_revisions."""
1155
if stop_revision is None:
1156
stop_revision = other.last_revision()
1157
if stop_revision is None:
1158
# if there are no commits, we're done.
1160
# whats the current last revision, before we fetch [and change it
1162
last_rev = self.last_revision()
1163
# we fetch here regardless of whether we need to so that we pickup
1165
self.fetch(other, stop_revision)
1166
my_ancestry = self.repository.get_ancestry(last_rev)
1167
if stop_revision in my_ancestry:
1168
# last_revision is a descendant of stop_revision
1170
self.generate_revision_history(stop_revision, last_rev=last_rev,
1175
def basis_tree(self):
1176
"""See Branch.basis_tree."""
1177
return self.repository.revision_tree(self.last_revision())
1179
@deprecated_method(zero_eight)
1180
def working_tree(self):
1181
"""Create a Working tree object for this branch."""
1183
from bzrlib.transport.local import LocalTransport
1184
if (self.base.find('://') != -1 or
1185
not isinstance(self._transport, LocalTransport)):
1186
raise NoWorkingTree(self.base)
1187
return self.bzrdir.open_workingtree()
1190
def pull(self, source, overwrite=False, stop_revision=None):
1191
"""See Branch.pull."""
1194
old_count = len(self.revision_history())
1196
self.update_revisions(source, stop_revision)
1197
except DivergedBranches:
1201
self.set_revision_history(source.revision_history())
1202
new_count = len(self.revision_history())
1203
return new_count - old_count
1207
def get_parent(self):
1208
"""See Branch.get_parent."""
1210
_locs = ['parent', 'pull', 'x-pull']
1211
assert self.base[-1] == '/'
1214
parent = self.control_files.get(l).read().strip('\n')
1217
# This is an old-format absolute path to a local branch
1218
# turn it into a url
1219
if parent.startswith('/'):
1220
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1222
return urlutils.join(self.base[:-1], parent)
1223
except errors.InvalidURLJoin, e:
1224
raise errors.InaccessibleParent(parent, self.base)
1227
def get_push_location(self):
1228
"""See Branch.get_push_location."""
1229
push_loc = self.get_config().get_user_option('push_location')
1232
def set_push_location(self, location):
1233
"""See Branch.set_push_location."""
1234
self.get_config().set_user_option(
1235
'push_location', location,
1236
store=_mod_config.STORE_LOCATION_NORECURSE)
1239
def set_parent(self, url):
1240
"""See Branch.set_parent."""
1241
# TODO: Maybe delete old location files?
1242
# URLs should never be unicode, even on the local fs,
1243
# FIXUP this and get_parent in a future branch format bump:
1244
# read and rewrite the file, and have the new format code read
1245
# using .get not .get_utf8. RBC 20060125
1247
self.control_files._transport.delete('parent')
1249
if isinstance(url, unicode):
1251
url = url.encode('ascii')
1252
except UnicodeEncodeError:
1253
raise bzrlib.errors.InvalidURL(url,
1254
"Urls must be 7-bit ascii, "
1255
"use bzrlib.urlutils.escape")
1257
url = urlutils.relative_url(self.base, url)
1258
self.control_files.put('parent', StringIO(url + '\n'))
1260
@deprecated_function(zero_nine)
1261
def tree_config(self):
1262
"""DEPRECATED; call get_config instead.
1263
TreeConfig has become part of BranchConfig."""
1264
return TreeConfig(self)
1267
class BzrBranch5(BzrBranch):
1268
"""A format 5 branch. This supports new features over plan branches.
1270
It has support for a master_branch which is the data for bound branches.
1278
super(BzrBranch5, self).__init__(_format=_format,
1279
_control_files=_control_files,
1281
_repository=_repository)
1284
def pull(self, source, overwrite=False, stop_revision=None):
1285
"""Updates branch.pull to be bound branch aware."""
1286
bound_location = self.get_bound_location()
1287
if source.base != bound_location:
1288
# not pulling from master, so we need to update master.
1289
master_branch = self.get_master_branch()
1291
master_branch.pull(source)
1292
source = master_branch
1293
return super(BzrBranch5, self).pull(source, overwrite, stop_revision)
1295
def get_bound_location(self):
1297
return self.control_files.get_utf8('bound').read()[:-1]
1298
except errors.NoSuchFile:
1302
def get_master_branch(self):
1303
"""Return the branch we are bound to.
1305
:return: Either a Branch, or None
1307
This could memoise the branch, but if thats done
1308
it must be revalidated on each new lock.
1309
So for now we just don't memoise it.
1310
# RBC 20060304 review this decision.
1312
bound_loc = self.get_bound_location()
1316
return Branch.open(bound_loc)
1317
except (errors.NotBranchError, errors.ConnectionError), e:
1318
raise errors.BoundBranchConnectionFailure(
1322
def set_bound_location(self, location):
1323
"""Set the target where this branch is bound to.
1325
:param location: URL to the target branch
1328
self.control_files.put_utf8('bound', location+'\n')
1331
self.control_files._transport.delete('bound')
1337
def bind(self, other):
1338
"""Bind this branch to the branch other.
1340
This does not push or pull data between the branches, though it does
1341
check for divergence to raise an error when the branches are not
1342
either the same, or one a prefix of the other. That behaviour may not
1343
be useful, so that check may be removed in future.
1345
:param other: The branch to bind to
1348
# TODO: jam 20051230 Consider checking if the target is bound
1349
# It is debatable whether you should be able to bind to
1350
# a branch which is itself bound.
1351
# Committing is obviously forbidden,
1352
# but binding itself may not be.
1353
# Since we *have* to check at commit time, we don't
1354
# *need* to check here
1356
# we want to raise diverged if:
1357
# last_rev is not in the other_last_rev history, AND
1358
# other_last_rev is not in our history, and do it without pulling
1360
last_rev = self.last_revision()
1361
if last_rev is not None:
1364
other_last_rev = other.last_revision()
1365
if other_last_rev is not None:
1366
# neither branch is new, we have to do some work to
1367
# ascertain diversion.
1368
remote_graph = other.repository.get_revision_graph(
1370
local_graph = self.repository.get_revision_graph(last_rev)
1371
if (last_rev not in remote_graph and
1372
other_last_rev not in local_graph):
1373
raise errors.DivergedBranches(self, other)
1376
self.set_bound_location(other.base)
1380
"""If bound, unbind"""
1381
return self.set_bound_location(None)
1385
"""Synchronise this branch with the master branch if any.
1387
:return: None or the last_revision that was pivoted out during the
1390
master = self.get_master_branch()
1391
if master is not None:
1392
old_tip = self.last_revision()
1393
self.pull(master, overwrite=True)
1394
if old_tip in self.repository.get_ancestry(self.last_revision()):
1400
class BranchTestProviderAdapter(object):
1401
"""A tool to generate a suite testing multiple branch formats at once.
1403
This is done by copying the test once for each transport and injecting
1404
the transport_server, transport_readonly_server, and branch_format
1405
classes into each copy. Each copy is also given a new id() to make it
1409
def __init__(self, transport_server, transport_readonly_server, formats):
1410
self._transport_server = transport_server
1411
self._transport_readonly_server = transport_readonly_server
1412
self._formats = formats
1414
def adapt(self, test):
1415
result = TestSuite()
1416
for branch_format, bzrdir_format in self._formats:
1417
new_test = deepcopy(test)
1418
new_test.transport_server = self._transport_server
1419
new_test.transport_readonly_server = self._transport_readonly_server
1420
new_test.bzrdir_format = bzrdir_format
1421
new_test.branch_format = branch_format
1422
def make_new_test_id():
1423
new_id = "%s(%s)" % (new_test.id(), branch_format.__class__.__name__)
1424
return lambda: new_id
1425
new_test.id = make_new_test_id()
1426
result.addTest(new_test)
1430
class BranchCheckResult(object):
1431
"""Results of checking branch consistency.
1436
def __init__(self, branch):
1437
self.branch = branch
1439
def report_results(self, verbose):
1440
"""Report the check results via trace.note.
1442
:param verbose: Requests more detailed display of what was checked,
1445
note('checked branch %s format %s',
1447
self.branch._format)
1012
1450
######################################################################
1016
def is_control_file(filename):
1017
## FIXME: better check
1018
filename = os.path.normpath(filename)
1019
while filename != '':
1020
head, tail = os.path.split(filename)
1021
## mutter('check %r for control file' % ((head, tail), ))
1022
if tail == bzrlib.BZRDIR:
1024
if filename == head:
1031
def _gen_revision_id(when):
1032
"""Return new revision-id."""
1033
s = '%s-%s-' % (user_email(), compact_date(when))
1034
s += hexlify(rand_bytes(8))
1038
def gen_file_id(name):
1039
"""Return new file id.
1041
This should probably generate proper UUIDs, but for the moment we
1042
cope with just randomness because running uuidgen every time is
1044
idx = name.rfind('/')
1046
name = name[idx+1 : ]
1047
idx = name.rfind('\\')
1049
name = name[idx+1 : ]
1051
name = name.lstrip('.')
1053
s = hexlify(rand_bytes(8))
1054
return '-'.join((name, compact_date(time.time()), s))
1454
@deprecated_function(zero_eight)
1455
def is_control_file(*args, **kwargs):
1456
"""See bzrlib.workingtree.is_control_file."""
1457
from bzrlib import workingtree
1458
return workingtree.is_control_file(*args, **kwargs)
added
removed
bzrlib/branch.py
