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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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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 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 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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from bzrlib import bzrdir, errors, lockdir, osutils, revision, \
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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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import bzrlib.errors as errors
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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.lockable_files import LockableFiles, TransportLock
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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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TODO: Perhaps use different stores for different classes of object,
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so that we can keep track of how much space each one uses,
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or garbage-collect them.
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TODO: Add a RemoteBranch subclass. For the basic case of read-only
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HTTP access this should be very easy by,
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just redirecting controlfile access into HTTP requests.
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We would need a RemoteStore working similarly.
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TODO: Keep the on-disk branch locked while the object exists.
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Base directory/url of the branch.
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def __init__(self, base, init=False, find_root=True):
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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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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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# 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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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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def get_config(self):
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return bzrlib.config.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('is_locked is abstract')
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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 get_physical_lock_status(self):
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raise NotImplementedError('get_physical_lock_status is abstract')
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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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"""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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nested_pb = ui.ui_factory.nested_progress_bar()
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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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# 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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## 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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# 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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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 = 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('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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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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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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## 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.
484
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:
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# have to do this later so we don't mess up the iterator.
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# since parents may be removed before their children we
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# FIXME: There's probably a better way to do this; perhaps
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# the workingtree should know how to filter itself.
533
if work_inv.has_id(file_id):
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del work_inv[file_id]
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inv_id = rev_id = _gen_revision_id(time.time())
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inv_tmp = tempfile.TemporaryFile()
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inv.write_xml(inv_tmp)
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self.inventory_store.add(inv_tmp, inv_id)
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mutter('new inventory_id is {%s}' % inv_id)
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self._write_inventory(work_inv)
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if timestamp == None:
548
timestamp = time.time()
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if committer == None:
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committer = username()
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timezone = local_time_offset()
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mutter("building commit log message")
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rev = Revision(timestamp=timestamp,
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precursor = self.last_patch(),
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rev_tmp = tempfile.TemporaryFile()
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rev.write_xml(rev_tmp)
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self.revision_store.add(rev_tmp, rev_id)
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mutter("new revision_id is {%s}" % rev_id)
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## XXX: Everything up to here can simply be orphaned if we abort
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## the commit; it will leave junk files behind but that doesn't
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## TODO: Read back the just-generated changeset, and make sure it
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## applies and recreates the right state.
578
## TODO: Also calculate and store the inventory SHA1
579
mutter("committing patch r%d" % (self.revno() + 1))
582
self.append_revision(rev_id)
585
note("commited r%d" % self.revno())
588
def append_revision(self, revision_id):
589
mutter("add {%s} to revision-history" % revision_id)
590
rev_history = self.revision_history()
592
tmprhname = self.controlfilename('revision-history.tmp')
593
rhname = self.controlfilename('revision-history')
595
f = file(tmprhname, 'wt')
596
rev_history.append(revision_id)
597
f.write('\n'.join(rev_history))
601
if sys.platform == 'win32':
603
os.rename(tmprhname, rhname)
607
def get_revision(self, revision_id):
608
"""Return the Revision object for a named revision"""
609
r = Revision.read_xml(self.revision_store[revision_id])
610
assert r.revision_id == revision_id
614
def get_inventory(self, inventory_id):
615
"""Get Inventory object by hash.
617
TODO: Perhaps for this and similar methods, take a revision
618
parameter which can be either an integer revno or a
620
i = Inventory.read_xml(self.inventory_store[inventory_id])
624
def get_revision_inventory(self, revision_id):
625
"""Return inventory of a past revision."""
626
if revision_id == None:
629
return self.get_inventory(self.get_revision(revision_id).inventory_id)
278
raise NotImplementedError('print_file is abstract')
280
def append_revision(self, *revision_ids):
281
raise NotImplementedError('append_revision is abstract')
283
def set_revision_history(self, rev_history):
284
raise NotImplementedError('set_revision_history is abstract')
632
286
def revision_history(self):
633
"""Return sequence of revision hashes on to this branch.
635
>>> ScratchBranch().revision_history()
638
return [l.rstrip('\r\n') for l in self.controlfile('revision-history', 'r').readlines()]
287
"""Return sequence of revision hashes on to this branch."""
288
raise NotImplementedError('revision_history is abstract')
642
291
"""Return current revision number for this branch.
644
293
That is equivalent to the number of revisions committed to
647
>>> b = ScratchBranch()
650
>>> b.commit('no foo')
654
296
return len(self.revision_history())
657
def last_patch(self):
658
"""Return last patch hash, or None if no history.
660
>>> ScratchBranch().last_patch() == None
299
"""Older format branches cannot bind or unbind."""
300
raise errors.UpgradeRequired(self.base)
302
def last_revision(self):
303
"""Return last patch hash, or None if no history."""
663
304
ph = self.revision_history()
310
def missing_revisions(self, other, stop_revision=None):
311
"""Return a list of new revisions that would perfectly fit.
670
def lookup_revision(self, revno):
671
"""Return revision hash for revision number."""
313
If self and other have not diverged, return a list of the revisions
314
present in other, but missing from self.
316
self_history = self.revision_history()
317
self_len = len(self_history)
318
other_history = other.revision_history()
319
other_len = len(other_history)
320
common_index = min(self_len, other_len) -1
321
if common_index >= 0 and \
322
self_history[common_index] != other_history[common_index]:
323
raise DivergedBranches(self, other)
325
if stop_revision is None:
326
stop_revision = other_len
328
assert isinstance(stop_revision, int)
329
if stop_revision > other_len:
330
raise errors.NoSuchRevision(self, stop_revision)
331
return other_history[self_len:stop_revision]
333
def update_revisions(self, other, stop_revision=None):
334
"""Pull in new perfect-fit revisions.
336
:param other: Another Branch to pull from
337
:param stop_revision: Updated until the given revision
340
raise NotImplementedError('update_revisions is abstract')
342
def revision_id_to_revno(self, revision_id):
343
"""Given a revision id, return its revno"""
344
if revision_id is None:
346
history = self.revision_history()
348
return history.index(revision_id) + 1
350
raise bzrlib.errors.NoSuchRevision(self, revision_id)
352
def get_rev_id(self, revno, history=None):
353
"""Find the revision id of the specified revno."""
676
# list is 0-based; revisions are 1-based
677
return self.revision_history()[revno-1]
679
raise BzrError("no such revision %s" % revno)
682
def revision_tree(self, revision_id):
683
"""Return Tree for a revision on this branch.
685
`revision_id` may be None for the null revision, in which case
686
an `EmptyTree` is returned."""
688
if revision_id == None:
691
inv = self.get_revision_inventory(revision_id)
692
return RevisionTree(self.text_store, inv)
695
def working_tree(self):
696
"""Return a `Tree` for the working copy."""
697
return WorkingTree(self.base, self.read_working_inventory())
357
history = self.revision_history()
358
elif revno <= 0 or revno > len(history):
359
raise bzrlib.errors.NoSuchRevision(self, revno)
360
return history[revno - 1]
362
def pull(self, source, overwrite=False, stop_revision=None):
363
raise NotImplementedError('pull is abstract')
700
365
def basis_tree(self):
701
366
"""Return `Tree` object for last revision.
703
368
If there are no revisions yet, return an `EmptyTree`.
705
>>> b = ScratchBranch(files=['foo'])
706
>>> b.basis_tree().has_filename('foo')
708
>>> b.working_tree().has_filename('foo')
711
>>> b.commit('add foo')
712
>>> b.basis_tree().has_filename('foo')
715
r = self.last_patch()
719
return RevisionTree(self.text_store, self.get_revision_inventory(r))
723
def write_log(self, show_timezone='original', verbose=False):
724
"""Write out human-readable log of commits to this branch
726
utc -- If true, show dates in universal time, not local time."""
727
## TODO: Option to choose either original, utc or local timezone
730
for p in self.revision_history():
732
print 'revno:', revno
733
## TODO: Show hash if --id is given.
734
##print 'revision-hash:', p
735
rev = self.get_revision(p)
736
print 'committer:', rev.committer
737
print 'timestamp: %s' % (format_date(rev.timestamp, rev.timezone or 0,
740
## opportunistic consistency check, same as check_patch_chaining
741
if rev.precursor != precursor:
742
bailout("mismatched precursor!")
746
print ' (no message)'
748
for l in rev.message.split('\n'):
751
if verbose == True and precursor != None:
752
print 'changed files:'
753
tree = self.revision_tree(p)
754
prevtree = self.revision_tree(precursor)
756
for file_state, fid, old_name, new_name, kind in \
757
diff_trees(prevtree, tree, ):
758
if file_state == 'A' or file_state == 'M':
759
show_status(file_state, kind, new_name)
760
elif file_state == 'D':
761
show_status(file_state, kind, old_name)
762
elif file_state == 'R':
763
show_status(file_state, kind,
764
old_name + ' => ' + new_name)
370
return self.repository.revision_tree(self.last_revision())
770
372
def rename_one(self, from_rel, to_rel):
771
373
"""Rename one file.
773
375
This can change the directory or the filename or both.
775
tree = self.working_tree()
777
if not tree.has_filename(from_rel):
778
bailout("can't rename: old working file %r does not exist" % from_rel)
779
if tree.has_filename(to_rel):
780
bailout("can't rename: new working file %r already exists" % to_rel)
782
file_id = inv.path2id(from_rel)
784
bailout("can't rename: old name %r is not versioned" % from_rel)
786
if inv.path2id(to_rel):
787
bailout("can't rename: new name %r is already versioned" % to_rel)
789
to_dir, to_tail = os.path.split(to_rel)
790
to_dir_id = inv.path2id(to_dir)
791
if to_dir_id == None and to_dir != '':
792
bailout("can't determine destination directory id for %r" % to_dir)
794
mutter("rename_one:")
795
mutter(" file_id {%s}" % file_id)
796
mutter(" from_rel %r" % from_rel)
797
mutter(" to_rel %r" % to_rel)
798
mutter(" to_dir %r" % to_dir)
799
mutter(" to_dir_id {%s}" % to_dir_id)
801
inv.rename(file_id, to_dir_id, to_tail)
803
print "%s => %s" % (from_rel, to_rel)
805
from_abs = self.abspath(from_rel)
806
to_abs = self.abspath(to_rel)
808
os.rename(from_abs, to_abs)
810
bailout("failed to rename %r to %r: %s"
811
% (from_abs, to_abs, e[1]),
812
["rename rolled back"])
814
self._write_inventory(inv)
377
raise NotImplementedError('rename_one is abstract')
818
379
def move(self, from_paths, to_name):
826
387
Note that to_name is only the last component of the new name;
827
388
this doesn't change the directory.
829
## TODO: Option to move IDs only
830
assert not isinstance(from_paths, basestring)
831
tree = self.working_tree()
833
to_abs = self.abspath(to_name)
834
if not isdir(to_abs):
835
bailout("destination %r is not a directory" % to_abs)
836
if not tree.has_filename(to_name):
837
bailout("destination %r not in working directory" % to_abs)
838
to_dir_id = inv.path2id(to_name)
839
if to_dir_id == None and to_name != '':
840
bailout("destination %r is not a versioned directory" % to_name)
841
to_dir_ie = inv[to_dir_id]
842
if to_dir_ie.kind not in ('directory', 'root_directory'):
843
bailout("destination %r is not a directory" % to_abs)
845
to_idpath = Set(inv.get_idpath(to_dir_id))
848
if not tree.has_filename(f):
849
bailout("%r does not exist in working tree" % f)
850
f_id = inv.path2id(f)
852
bailout("%r is not versioned" % f)
853
name_tail = splitpath(f)[-1]
854
dest_path = appendpath(to_name, name_tail)
855
if tree.has_filename(dest_path):
856
bailout("destination %r already exists" % dest_path)
857
if f_id in to_idpath:
858
bailout("can't move %r to a subdirectory of itself" % f)
860
# OK, so there's a race here, it's possible that someone will
861
# create a file in this interval and then the rename might be
862
# left half-done. But we should have caught most problems.
865
name_tail = splitpath(f)[-1]
866
dest_path = appendpath(to_name, name_tail)
867
print "%s => %s" % (f, dest_path)
868
inv.rename(inv.path2id(f), to_dir_id, name_tail)
870
os.rename(self.abspath(f), self.abspath(dest_path))
872
bailout("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
873
["rename rolled back"])
875
self._write_inventory(inv)
879
def show_status(self, show_all=False):
880
"""Display single-line status for non-ignored working files.
882
The list is show sorted in order by file name.
884
>>> b = ScratchBranch(files=['foo', 'foo~'])
890
>>> b.commit("add foo")
892
>>> os.unlink(b.abspath('foo'))
896
TODO: Get state for single files.
899
# We have to build everything into a list first so that it can
900
# sorted by name, incorporating all the different sources.
902
# FIXME: Rather than getting things in random order and then sorting,
903
# just step through in order.
905
# Interesting case: the old ID for a file has been removed,
906
# but a new file has been created under that name.
908
old = self.basis_tree()
909
new = self.working_tree()
911
for fs, fid, oldname, newname, kind in diff_trees(old, new):
913
show_status(fs, kind,
914
oldname + ' => ' + newname)
915
elif fs == 'A' or fs == 'M':
916
show_status(fs, kind, newname)
918
show_status(fs, kind, oldname)
921
show_status(fs, kind, newname)
924
show_status(fs, kind, newname)
926
show_status(fs, kind, newname)
928
bailout("weird file state %r" % ((fs, fid),))
932
class ScratchBranch(Branch):
933
"""Special test class: a branch that cleans up after itself.
935
>>> b = ScratchBranch()
943
def __init__(self, files=[], dirs=[]):
944
"""Make a test branch.
946
This creates a temporary directory and runs init-tree in it.
948
If any files are listed, they are created in the working copy.
950
Branch.__init__(self, tempfile.mkdtemp(), init=True)
952
os.mkdir(self.abspath(d))
390
This returns a list of (from_path, to_path) pairs for each
393
raise NotImplementedError('move is abstract')
395
def get_parent(self):
396
"""Return the parent location of the branch.
398
This is the default location for push/pull/missing. The usual
399
pattern is that the user can override it by specifying a
402
raise NotImplementedError('get_parent is abstract')
404
def get_submit_branch(self):
405
"""Return the submit location of the branch.
407
This is the default location for bundle. The usual
408
pattern is that the user can override it by specifying a
411
return self.get_config().get_user_option('submit_branch')
413
def set_submit_branch(self, location):
414
"""Return the submit location of the branch.
416
This is the default location for bundle. The usual
417
pattern is that the user can override it by specifying a
420
self.get_config().set_user_option('submit_branch', location)
422
def get_push_location(self):
423
"""Return the None or the location to push this branch to."""
424
raise NotImplementedError('get_push_location is abstract')
426
def set_push_location(self, location):
427
"""Set a new push location for this branch."""
428
raise NotImplementedError('set_push_location is abstract')
430
def set_parent(self, url):
431
raise NotImplementedError('set_parent is abstract')
435
"""Synchronise this branch with the master branch if any.
437
:return: None or the last_revision pivoted out during the update.
441
def check_revno(self, revno):
443
Check whether a revno corresponds to any revision.
444
Zero (the NULL revision) is considered valid.
447
self.check_real_revno(revno)
955
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
449
def check_real_revno(self, revno):
451
Check whether a revno corresponds to a real revision.
452
Zero (the NULL revision) is considered invalid
454
if revno < 1 or revno > self.revno():
455
raise InvalidRevisionNumber(revno)
458
def clone(self, *args, **kwargs):
459
"""Clone this branch into to_bzrdir preserving all semantic values.
461
revision_id: if not None, the revision history in the new branch will
462
be truncated to end with revision_id.
464
# for API compatibility, until 0.8 releases we provide the old api:
465
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
466
# after 0.8 releases, the *args and **kwargs should be changed:
467
# def clone(self, to_bzrdir, revision_id=None):
468
if (kwargs.get('to_location', None) or
469
kwargs.get('revision', None) or
470
kwargs.get('basis_branch', None) or
471
(len(args) and isinstance(args[0], basestring))):
472
# backwards compatibility api:
473
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
474
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
477
basis_branch = args[2]
479
basis_branch = kwargs.get('basis_branch', None)
481
basis = basis_branch.bzrdir
486
revision_id = args[1]
488
revision_id = kwargs.get('revision', None)
493
# no default to raise if not provided.
494
url = kwargs.get('to_location')
495
return self.bzrdir.clone(url,
496
revision_id=revision_id,
497
basis=basis).open_branch()
499
# generate args by hand
501
revision_id = args[1]
503
revision_id = kwargs.get('revision_id', None)
507
# no default to raise if not provided.
508
to_bzrdir = kwargs.get('to_bzrdir')
509
result = self._format.initialize(to_bzrdir)
510
self.copy_content_into(result, revision_id=revision_id)
514
def sprout(self, to_bzrdir, revision_id=None):
515
"""Create a new line of development from the branch, into to_bzrdir.
517
revision_id: if not None, the revision history in the new branch will
518
be truncated to end with revision_id.
520
result = self._format.initialize(to_bzrdir)
521
self.copy_content_into(result, revision_id=revision_id)
522
result.set_parent(self.bzrdir.root_transport.base)
526
def copy_content_into(self, destination, revision_id=None):
527
"""Copy the content of self into destination.
529
revision_id: if not None, the revision history in the new branch will
530
be truncated to end with revision_id.
532
new_history = self.revision_history()
533
if revision_id is not None:
535
new_history = new_history[:new_history.index(revision_id) + 1]
537
rev = self.repository.get_revision(revision_id)
538
new_history = rev.get_history(self.repository)[1:]
539
destination.set_revision_history(new_history)
540
parent = self.get_parent()
542
destination.set_parent(parent)
546
"""Check consistency of the branch.
548
In particular this checks that revisions given in the revision-history
549
do actually match up in the revision graph, and that they're all
550
present in the repository.
552
Callers will typically also want to check the repository.
554
:return: A BranchCheckResult.
556
mainline_parent_id = None
557
for revision_id in self.revision_history():
559
revision = self.repository.get_revision(revision_id)
560
except errors.NoSuchRevision, e:
561
raise errors.BzrCheckError("mainline revision {%s} not in repository"
563
# In general the first entry on the revision history has no parents.
564
# But it's not illegal for it to have parents listed; this can happen
565
# in imports from Arch when the parents weren't reachable.
566
if mainline_parent_id is not None:
567
if mainline_parent_id not in revision.parent_ids:
568
raise errors.BzrCheckError("previous revision {%s} not listed among "
570
% (mainline_parent_id, revision_id))
571
mainline_parent_id = revision_id
572
return BranchCheckResult(self)
575
class BranchFormat(object):
576
"""An encapsulation of the initialization and open routines for a format.
578
Formats provide three things:
579
* An initialization routine,
583
Formats are placed in an dict by their format string for reference
584
during branch opening. Its not required that these be instances, they
585
can be classes themselves with class methods - it simply depends on
586
whether state is needed for a given format or not.
588
Once a format is deprecated, just deprecate the initialize and open
589
methods on the format class. Do not deprecate the object, as the
590
object will be created every time regardless.
593
_default_format = None
594
"""The default format used for new branches."""
597
"""The known formats."""
600
def find_format(klass, a_bzrdir):
601
"""Return the format for the branch object in a_bzrdir."""
603
transport = a_bzrdir.get_branch_transport(None)
604
format_string = transport.get("format").read()
605
return klass._formats[format_string]
607
raise NotBranchError(path=transport.base)
609
raise errors.UnknownFormatError(format=format_string)
612
def get_default_format(klass):
613
"""Return the current default format."""
614
return klass._default_format
616
def get_format_string(self):
617
"""Return the ASCII format string that identifies this format."""
618
raise NotImplementedError(self.get_format_string)
620
def get_format_description(self):
621
"""Return the short format description for this format."""
622
raise NotImplementedError(self.get_format_string)
624
def initialize(self, a_bzrdir):
625
"""Create a branch of this format in a_bzrdir."""
626
raise NotImplementedError(self.initialize)
628
def is_supported(self):
629
"""Is this format supported?
631
Supported formats can be initialized and opened.
632
Unsupported formats may not support initialization or committing or
633
some other features depending on the reason for not being supported.
637
def open(self, a_bzrdir, _found=False):
638
"""Return the branch object for a_bzrdir
640
_found is a private parameter, do not use it. It is used to indicate
641
if format probing has already be done.
643
raise NotImplementedError(self.open)
646
def register_format(klass, format):
647
klass._formats[format.get_format_string()] = format
650
def set_default_format(klass, format):
651
klass._default_format = format
654
def unregister_format(klass, format):
655
assert klass._formats[format.get_format_string()] is format
656
del klass._formats[format.get_format_string()]
659
return self.get_format_string().rstrip()
662
class BzrBranchFormat4(BranchFormat):
663
"""Bzr branch format 4.
666
- a revision-history file.
667
- a branch-lock lock file [ to be shared with the bzrdir ]
670
def get_format_description(self):
671
"""See BranchFormat.get_format_description()."""
672
return "Branch format 4"
674
def initialize(self, a_bzrdir):
675
"""Create a branch of this format in a_bzrdir."""
676
mutter('creating branch in %s', a_bzrdir.transport.base)
677
branch_transport = a_bzrdir.get_branch_transport(self)
678
utf8_files = [('revision-history', ''),
681
control_files = LockableFiles(branch_transport, 'branch-lock',
683
control_files.create_lock()
684
control_files.lock_write()
686
for file, content in utf8_files:
687
control_files.put_utf8(file, content)
689
control_files.unlock()
690
return self.open(a_bzrdir, _found=True)
693
super(BzrBranchFormat4, self).__init__()
694
self._matchingbzrdir = bzrdir.BzrDirFormat6()
696
def open(self, a_bzrdir, _found=False):
697
"""Return the branch object for a_bzrdir
699
_found is a private parameter, do not use it. It is used to indicate
700
if format probing has already be done.
703
# we are being called directly and must probe.
704
raise NotImplementedError
705
return BzrBranch(_format=self,
706
_control_files=a_bzrdir._control_files,
708
_repository=a_bzrdir.open_repository())
711
return "Bazaar-NG branch format 4"
714
class BzrBranchFormat5(BranchFormat):
715
"""Bzr branch format 5.
718
- a revision-history file.
720
- a lock dir guarding the branch itself
721
- all of this stored in a branch/ subdirectory
722
- works with shared repositories.
724
This format is new in bzr 0.8.
727
def get_format_string(self):
728
"""See BranchFormat.get_format_string()."""
729
return "Bazaar-NG branch format 5\n"
731
def get_format_description(self):
732
"""See BranchFormat.get_format_description()."""
733
return "Branch format 5"
735
def initialize(self, a_bzrdir):
736
"""Create a branch of this format in a_bzrdir."""
737
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
738
branch_transport = a_bzrdir.get_branch_transport(self)
739
utf8_files = [('revision-history', ''),
742
control_files = LockableFiles(branch_transport, 'lock', lockdir.LockDir)
743
control_files.create_lock()
744
control_files.lock_write()
745
control_files.put_utf8('format', self.get_format_string())
747
for file, content in utf8_files:
748
control_files.put_utf8(file, content)
750
control_files.unlock()
751
return self.open(a_bzrdir, _found=True, )
754
super(BzrBranchFormat5, self).__init__()
755
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
757
def open(self, a_bzrdir, _found=False):
758
"""Return the branch object for a_bzrdir
760
_found is a private parameter, do not use it. It is used to indicate
761
if format probing has already be done.
764
format = BranchFormat.find_format(a_bzrdir)
765
assert format.__class__ == self.__class__
766
transport = a_bzrdir.get_branch_transport(None)
767
control_files = LockableFiles(transport, 'lock', lockdir.LockDir)
768
return BzrBranch5(_format=self,
769
_control_files=control_files,
771
_repository=a_bzrdir.find_repository())
774
return "Bazaar-NG Metadir branch format 5"
777
class BranchReferenceFormat(BranchFormat):
778
"""Bzr branch reference format.
780
Branch references are used in implementing checkouts, they
781
act as an alias to the real branch which is at some other url.
788
def get_format_string(self):
789
"""See BranchFormat.get_format_string()."""
790
return "Bazaar-NG Branch Reference Format 1\n"
792
def get_format_description(self):
793
"""See BranchFormat.get_format_description()."""
794
return "Checkout reference format 1"
796
def initialize(self, a_bzrdir, target_branch=None):
797
"""Create a branch of this format in a_bzrdir."""
798
if target_branch is None:
799
# this format does not implement branch itself, thus the implicit
800
# creation contract must see it as uninitializable
801
raise errors.UninitializableFormat(self)
802
mutter('creating branch reference in %s', a_bzrdir.transport.base)
803
branch_transport = a_bzrdir.get_branch_transport(self)
804
# FIXME rbc 20060209 one j-a-ms encoding branch lands this str() cast is not needed.
805
branch_transport.put('location', StringIO(str(target_branch.bzrdir.root_transport.base)))
806
branch_transport.put('format', StringIO(self.get_format_string()))
807
return self.open(a_bzrdir, _found=True)
810
super(BranchReferenceFormat, self).__init__()
811
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
813
def _make_reference_clone_function(format, a_branch):
814
"""Create a clone() routine for a branch dynamically."""
815
def clone(to_bzrdir, revision_id=None):
816
"""See Branch.clone()."""
817
return format.initialize(to_bzrdir, a_branch)
818
# cannot obey revision_id limits when cloning a reference ...
819
# FIXME RBC 20060210 either nuke revision_id for clone, or
820
# emit some sort of warning/error to the caller ?!
823
def open(self, a_bzrdir, _found=False):
824
"""Return the branch that the branch reference in a_bzrdir points at.
826
_found is a private parameter, do not use it. It is used to indicate
827
if format probing has already be done.
830
format = BranchFormat.find_format(a_bzrdir)
831
assert format.__class__ == self.__class__
832
transport = a_bzrdir.get_branch_transport(None)
833
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
834
result = real_bzrdir.open_branch()
835
# this changes the behaviour of result.clone to create a new reference
836
# rather than a copy of the content of the branch.
837
# I did not use a proxy object because that needs much more extensive
838
# testing, and we are only changing one behaviour at the moment.
839
# If we decide to alter more behaviours - i.e. the implicit nickname
840
# then this should be refactored to introduce a tested proxy branch
841
# and a subclass of that for use in overriding clone() and ....
843
result.clone = self._make_reference_clone_function(result)
847
# formats which have no format string are not discoverable
848
# and not independently creatable, so are not registered.
849
__default_format = BzrBranchFormat5()
850
BranchFormat.register_format(__default_format)
851
BranchFormat.register_format(BranchReferenceFormat())
852
BranchFormat.set_default_format(__default_format)
853
_legacy_formats = [BzrBranchFormat4(),
856
class BzrBranch(Branch):
857
"""A branch stored in the actual filesystem.
859
Note that it's "local" in the context of the filesystem; it doesn't
860
really matter if it's on an nfs/smb/afs/coda/... share, as long as
861
it's writable, and can be accessed via the normal filesystem API.
864
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
865
relax_version_check=DEPRECATED_PARAMETER, _format=None,
866
_control_files=None, a_bzrdir=None, _repository=None):
867
"""Create new branch object at a particular location.
869
transport -- A Transport object, defining how to access files.
871
init -- If True, create new control files in a previously
872
unversioned directory. If False, the branch must already
875
relax_version_check -- If true, the usual check for the branch
876
version is not applied. This is intended only for
877
upgrade/recovery type use; it's not guaranteed that
878
all operations will work on old format branches.
881
self.bzrdir = bzrdir.BzrDir.open(transport.base)
883
self.bzrdir = a_bzrdir
884
self._transport = self.bzrdir.transport.clone('..')
885
self._base = self._transport.base
886
self._format = _format
887
if _control_files is None:
888
raise ValueError('BzrBranch _control_files is None')
889
self.control_files = _control_files
890
if deprecated_passed(init):
891
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
892
"deprecated as of bzr 0.8. Please use Branch.create().",
896
# this is slower than before deprecation, oh well never mind.
898
self._initialize(transport.base)
899
self._check_format(_format)
900
if deprecated_passed(relax_version_check):
901
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
902
"relax_version_check parameter is deprecated as of bzr 0.8. "
903
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
907
if (not relax_version_check
908
and not self._format.is_supported()):
909
raise errors.UnsupportedFormatError(format=fmt)
910
if deprecated_passed(transport):
911
warn("BzrBranch.__init__(transport=XXX...): The transport "
912
"parameter is deprecated as of bzr 0.8. "
913
"Please use Branch.open, or bzrdir.open_branch().",
916
self.repository = _repository
919
return '%s(%r)' % (self.__class__.__name__, self.base)
958
923
def __del__(self):
959
"""Destroy the test branch, removing the scratch directory."""
961
shutil.rmtree(self.base)
963
# Work around for shutil.rmtree failing on Windows when
964
# readonly files are encountered
965
for root, dirs, files in os.walk(self.base, topdown=False):
967
os.chmod(os.path.join(root, name), 0700)
968
shutil.rmtree(self.base)
924
# TODO: It might be best to do this somewhere else,
925
# but it is nice for a Branch object to automatically
926
# cache it's information.
927
# Alternatively, we could have the Transport objects cache requests
928
# See the earlier discussion about how major objects (like Branch)
929
# should never expect their __del__ function to run.
930
# XXX: cache_root seems to be unused, 2006-01-13 mbp
931
if hasattr(self, 'cache_root') and self.cache_root is not None:
933
osutils.rmtree(self.cache_root)
936
self.cache_root = None
941
base = property(_get_base, doc="The URL for the root of this branch.")
943
def _finish_transaction(self):
944
"""Exit the current transaction."""
945
return self.control_files._finish_transaction()
947
def get_transaction(self):
948
"""Return the current active transaction.
950
If no transaction is active, this returns a passthrough object
951
for which all data is immediately flushed and no caching happens.
953
# this is an explicit function so that we can do tricky stuff
954
# when the storage in rev_storage is elsewhere.
955
# we probably need to hook the two 'lock a location' and
956
# 'have a transaction' together more delicately, so that
957
# we can have two locks (branch and storage) and one transaction
958
# ... and finishing the transaction unlocks both, but unlocking
959
# does not. - RBC 20051121
960
return self.control_files.get_transaction()
962
def _set_transaction(self, transaction):
963
"""Set a new active transaction."""
964
return self.control_files._set_transaction(transaction)
966
def abspath(self, name):
967
"""See Branch.abspath."""
968
return self.control_files._transport.abspath(name)
970
def _check_format(self, format):
971
"""Identify the branch format if needed.
973
The format is stored as a reference to the format object in
974
self._format for code that needs to check it later.
976
The format parameter is either None or the branch format class
977
used to open this branch.
979
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
982
format = BranchFormat.find_format(self.bzrdir)
983
self._format = format
984
mutter("got branch format %s", self._format)
987
def get_root_id(self):
988
"""See Branch.get_root_id."""
989
tree = self.repository.revision_tree(self.last_revision())
990
return tree.inventory.root.file_id
993
return self.control_files.is_locked()
995
def lock_write(self):
996
# TODO: test for failed two phase locks. This is known broken.
997
self.control_files.lock_write()
998
self.repository.lock_write()
1000
def lock_read(self):
1001
# TODO: test for failed two phase locks. This is known broken.
1002
self.control_files.lock_read()
1003
self.repository.lock_read()
1006
# TODO: test for failed two phase locks. This is known broken.
1008
self.repository.unlock()
1010
self.control_files.unlock()
1012
def peek_lock_mode(self):
1013
if self.control_files._lock_count == 0:
1016
return self.control_files._lock_mode
1018
def get_physical_lock_status(self):
1019
return self.control_files.get_physical_lock_status()
1022
def print_file(self, file, revision_id):
1023
"""See Branch.print_file."""
1024
return self.repository.print_file(file, revision_id)
1027
def append_revision(self, *revision_ids):
1028
"""See Branch.append_revision."""
1029
for revision_id in revision_ids:
1030
mutter("add {%s} to revision-history" % revision_id)
1031
rev_history = self.revision_history()
1032
rev_history.extend(revision_ids)
1033
self.set_revision_history(rev_history)
1036
def set_revision_history(self, rev_history):
1037
"""See Branch.set_revision_history."""
1038
self.control_files.put_utf8(
1039
'revision-history', '\n'.join(rev_history))
1040
transaction = self.get_transaction()
1041
history = transaction.map.find_revision_history()
1042
if history is not None:
1043
# update the revision history in the identity map.
1044
history[:] = list(rev_history)
1045
# this call is disabled because revision_history is
1046
# not really an object yet, and the transaction is for objects.
1047
# transaction.register_dirty(history)
1049
transaction.map.add_revision_history(rev_history)
1050
# this call is disabled because revision_history is
1051
# not really an object yet, and the transaction is for objects.
1052
# transaction.register_clean(history)
1055
def revision_history(self):
1056
"""See Branch.revision_history."""
1057
transaction = self.get_transaction()
1058
history = transaction.map.find_revision_history()
1059
if history is not None:
1060
mutter("cache hit for revision-history in %s", self)
1061
return list(history)
1062
history = [l.rstrip('\r\n') for l in
1063
self.control_files.get_utf8('revision-history').readlines()]
1064
transaction.map.add_revision_history(history)
1065
# this call is disabled because revision_history is
1066
# not really an object yet, and the transaction is for objects.
1067
# transaction.register_clean(history, precious=True)
1068
return list(history)
1071
def generate_revision_history(self, revision_id, last_rev=None,
1073
"""Create a new revision history that will finish with revision_id.
1075
:param revision_id: the new tip to use.
1076
:param last_rev: The previous last_revision. If not None, then this
1077
must be a ancestory of revision_id, or DivergedBranches is raised.
1078
:param other_branch: The other branch that DivergedBranches should
1079
raise with respect to.
1081
# stop_revision must be a descendant of last_revision
1082
stop_graph = self.repository.get_revision_graph(revision_id)
1083
if last_rev is not None and last_rev not in stop_graph:
1084
# our previous tip is not merged into stop_revision
1085
raise errors.DivergedBranches(self, other_branch)
1086
# make a new revision history from the graph
1087
current_rev_id = revision_id
1089
while current_rev_id not in (None, revision.NULL_REVISION):
1090
new_history.append(current_rev_id)
1091
current_rev_id_parents = stop_graph[current_rev_id]
1093
current_rev_id = current_rev_id_parents[0]
1095
current_rev_id = None
1096
new_history.reverse()
1097
self.set_revision_history(new_history)
1100
def update_revisions(self, other, stop_revision=None):
1101
"""See Branch.update_revisions."""
1104
if stop_revision is None:
1105
stop_revision = other.last_revision()
1106
if stop_revision is None:
1107
# if there are no commits, we're done.
1109
# whats the current last revision, before we fetch [and change it
1111
last_rev = self.last_revision()
1112
# we fetch here regardless of whether we need to so that we pickup
1114
self.fetch(other, stop_revision)
1115
my_ancestry = self.repository.get_ancestry(last_rev)
1116
if stop_revision in my_ancestry:
1117
# last_revision is a descendant of stop_revision
1119
self.generate_revision_history(stop_revision, last_rev=last_rev,
1124
def basis_tree(self):
1125
"""See Branch.basis_tree."""
1126
return self.repository.revision_tree(self.last_revision())
1128
@deprecated_method(zero_eight)
1129
def working_tree(self):
1130
"""Create a Working tree object for this branch."""
1132
from bzrlib.transport.local import LocalTransport
1133
if (self.base.find('://') != -1 or
1134
not isinstance(self._transport, LocalTransport)):
1135
raise NoWorkingTree(self.base)
1136
return self.bzrdir.open_workingtree()
1139
def pull(self, source, overwrite=False, stop_revision=None):
1140
"""See Branch.pull."""
1143
old_count = len(self.revision_history())
1145
self.update_revisions(source,stop_revision)
1146
except DivergedBranches:
1150
self.set_revision_history(source.revision_history())
1151
new_count = len(self.revision_history())
1152
return new_count - old_count
1156
def get_parent(self):
1157
"""See Branch.get_parent."""
1159
_locs = ['parent', 'pull', 'x-pull']
1160
assert self.base[-1] == '/'
1163
parent = self.control_files.get(l).read().strip('\n')
1166
# This is an old-format absolute path to a local branch
1167
# turn it into a url
1168
if parent.startswith('/'):
1169
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1170
return urlutils.join(self.base[:-1], parent)
1173
def get_push_location(self):
1174
"""See Branch.get_push_location."""
1175
push_loc = self.get_config().get_user_option('push_location')
1178
def set_push_location(self, location):
1179
"""See Branch.set_push_location."""
1180
self.get_config().set_user_option('push_location', location,
1184
def set_parent(self, url):
1185
"""See Branch.set_parent."""
1186
# TODO: Maybe delete old location files?
1187
# URLs should never be unicode, even on the local fs,
1188
# FIXUP this and get_parent in a future branch format bump:
1189
# read and rewrite the file, and have the new format code read
1190
# using .get not .get_utf8. RBC 20060125
1192
self.control_files._transport.delete('parent')
1194
if isinstance(url, unicode):
1196
url = url.encode('ascii')
1197
except UnicodeEncodeError:
1198
raise bzrlib.errors.InvalidURL(url,
1199
"Urls must be 7-bit ascii, "
1200
"use bzrlib.urlutils.escape")
1202
url = urlutils.relative_url(self.base, url)
1203
self.control_files.put('parent', url + '\n')
1205
@deprecated_function(zero_nine)
1206
def tree_config(self):
1207
"""DEPRECATED; call get_config instead.
1208
TreeConfig has become part of BranchConfig."""
1209
return TreeConfig(self)
1212
class BzrBranch5(BzrBranch):
1213
"""A format 5 branch. This supports new features over plan branches.
1215
It has support for a master_branch which is the data for bound branches.
1223
super(BzrBranch5, self).__init__(_format=_format,
1224
_control_files=_control_files,
1226
_repository=_repository)
1229
def pull(self, source, overwrite=False, stop_revision=None):
1230
"""Updates branch.pull to be bound branch aware."""
1231
bound_location = self.get_bound_location()
1232
if source.base != bound_location:
1233
# not pulling from master, so we need to update master.
1234
master_branch = self.get_master_branch()
1236
master_branch.pull(source)
1237
source = master_branch
1238
return super(BzrBranch5, self).pull(source, overwrite, stop_revision)
1240
def get_bound_location(self):
1242
return self.control_files.get_utf8('bound').read()[:-1]
1243
except errors.NoSuchFile:
1247
def get_master_branch(self):
1248
"""Return the branch we are bound to.
1250
:return: Either a Branch, or None
1252
This could memoise the branch, but if thats done
1253
it must be revalidated on each new lock.
1254
So for now we just don't memoise it.
1255
# RBC 20060304 review this decision.
1257
bound_loc = self.get_bound_location()
1261
return Branch.open(bound_loc)
1262
except (errors.NotBranchError, errors.ConnectionError), e:
1263
raise errors.BoundBranchConnectionFailure(
1267
def set_bound_location(self, location):
1268
"""Set the target where this branch is bound to.
1270
:param location: URL to the target branch
1273
self.control_files.put_utf8('bound', location+'\n')
1276
self.control_files._transport.delete('bound')
1282
def bind(self, other):
1283
"""Bind the local branch the other branch.
1285
:param other: The branch to bind to
1288
# TODO: jam 20051230 Consider checking if the target is bound
1289
# It is debatable whether you should be able to bind to
1290
# a branch which is itself bound.
1291
# Committing is obviously forbidden,
1292
# but binding itself may not be.
1293
# Since we *have* to check at commit time, we don't
1294
# *need* to check here
1297
# we are now equal to or a suffix of other.
1299
# Since we have 'pulled' from the remote location,
1300
# now we should try to pull in the opposite direction
1301
# in case the local tree has more revisions than the
1303
# There may be a different check you could do here
1304
# rather than actually trying to install revisions remotely.
1305
# TODO: capture an exception which indicates the remote branch
1307
# If it is up-to-date, this probably should not be a failure
1309
# lock other for write so the revision-history syncing cannot race
1313
# if this does not error, other now has the same last rev we do
1314
# it can only error if the pull from other was concurrent with
1315
# a commit to other from someone else.
1317
# until we ditch revision-history, we need to sync them up:
1318
self.set_revision_history(other.revision_history())
1319
# now other and self are up to date with each other and have the
1320
# same revision-history.
1324
self.set_bound_location(other.base)
1328
"""If bound, unbind"""
1329
return self.set_bound_location(None)
1333
"""Synchronise this branch with the master branch if any.
1335
:return: None or the last_revision that was pivoted out during the
1338
master = self.get_master_branch()
1339
if master is not None:
1340
old_tip = self.last_revision()
1341
self.pull(master, overwrite=True)
1342
if old_tip in self.repository.get_ancestry(self.last_revision()):
1348
class BranchTestProviderAdapter(object):
1349
"""A tool to generate a suite testing multiple branch formats at once.
1351
This is done by copying the test once for each transport and injecting
1352
the transport_server, transport_readonly_server, and branch_format
1353
classes into each copy. Each copy is also given a new id() to make it
1357
def __init__(self, transport_server, transport_readonly_server, formats):
1358
self._transport_server = transport_server
1359
self._transport_readonly_server = transport_readonly_server
1360
self._formats = formats
1362
def adapt(self, test):
1363
result = TestSuite()
1364
for branch_format, bzrdir_format in self._formats:
1365
new_test = deepcopy(test)
1366
new_test.transport_server = self._transport_server
1367
new_test.transport_readonly_server = self._transport_readonly_server
1368
new_test.bzrdir_format = bzrdir_format
1369
new_test.branch_format = branch_format
1370
def make_new_test_id():
1371
new_id = "%s(%s)" % (new_test.id(), branch_format.__class__.__name__)
1372
return lambda: new_id
1373
new_test.id = make_new_test_id()
1374
result.addTest(new_test)
1378
class BranchCheckResult(object):
1379
"""Results of checking branch consistency.
1384
def __init__(self, branch):
1385
self.branch = branch
1387
def report_results(self, verbose):
1388
"""Report the check results via trace.note.
1390
:param verbose: Requests more detailed display of what was checked,
1393
note('checked branch %s format %s',
1395
self.branch._format)
972
1398
######################################################################
976
def is_control_file(filename):
977
## FIXME: better check
978
filename = os.path.normpath(filename)
979
while filename != '':
980
head, tail = os.path.split(filename)
981
## mutter('check %r for control file' % ((head, tail), ))
982
if tail == bzrlib.BZRDIR:
991
def _gen_revision_id(when):
992
"""Return new revision-id."""
993
s = '%s-%s-' % (user_email(), compact_date(when))
994
s += hexlify(rand_bytes(8))
998
def gen_file_id(name):
999
"""Return new file id.
1001
This should probably generate proper UUIDs, but for the moment we
1002
cope with just randomness because running uuidgen every time is
1004
idx = name.rfind('/')
1006
name = name[idx+1 : ]
1007
idx = name.rfind('\\')
1009
name = name[idx+1 : ]
1011
name = name.lstrip('.')
1013
s = hexlify(rand_bytes(8))
1014
return '-'.join((name, compact_date(time.time()), s))
1402
@deprecated_function(zero_eight)
1403
def is_control_file(*args, **kwargs):
1404
"""See bzrlib.workingtree.is_control_file."""
1405
return bzrlib.workingtree.is_control_file(*args, **kwargs)