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- Committer: John Arbash Meinel
- Date: 2006-04-29 15:30:26 UTC
- mfrom: (1692 +trunk)
- mto: This revision was merged to the branch mainline in revision 1693.
- Revision ID: john@arbash-meinel.com-20060429153026-cc7e756ff8a5bf50
[merge] bzr.dev 1692
- files added:
- BRANCH.TODO
- bzrlib/doc
- bzrlib/doc/api
- bzrlib/export
- bzrlib/store
- bzrlib/store/revision
- bzrlib/store/versioned
- bzrlib/tests/blackbox
- bzrlib/tests/branch_implementations
- bzrlib/tests/bzrdir_implementations
- bzrlib/tests/interrepository_implementations
- bzrlib/tests/interversionedfile_implementations
- bzrlib/tests/repository_implementations
- bzrlib/tests/revisionstore_implementations
- bzrlib/tests/workingtree_implementations
- bzrlib/transport
- bzrlib/transport/http
- bzrlib/ui
- bzrlib/util
- bzrlib/util/configobj
- bzrlib/util/configobj/docs
- contrib/emacs
- tools/doc_generate
- files removed:
- bzrlib/changeset.py
- patches
- plugins/changeset
- files renamed:
- plugins/ => bzrlib/plugins/
- bzrlib/store.py => bzrlib/store/__init__.py
- bzrlib/selftest/ => bzrlib/tests/
- bzrlib/selftest/teststatus.py => bzrlib/tests/blackbox/test_status.py
- bzrlib/selftest/blackbox.py => bzrlib/tests/blackbox/test_too_much.py
- bzrlib/selftest/versioning.py => bzrlib/tests/blackbox/test_versioning.py
- bzrlib/selftest/testbranch.py => bzrlib/tests/branch_implementations/test_branch.py
- bzrlib/selftest/testhashcache.py => bzrlib/tests/test_hashcache.py
- bzrlib/selftest/testinv.py => bzrlib/tests/test_inv.py
- bzrlib/selftest/testmerge3.py => bzrlib/tests/test_merge3.py
- bzrlib/selftest/plugins.py => bzrlib/tests/test_plugins.py
- bzrlib/selftest/testrevisionnamespaces.py => bzrlib/tests/test_revisionnamespaces.py
- tools/testweave.py => bzrlib/tests/test_weave.py
- bzrlib/selftest/whitebox.py => bzrlib/tests/test_whitebox.py
- effbot/ => bzrlib/util/effbot/
- elementtree/ => bzrlib/util/elementtree/
- urlgrabber/ => bzrlib/util/urlgrabber/
- bzrlib/xml.py => bzrlib/xml_serializer.py
- bzrlib/newinventory.py => contrib/newinventory.py
- bzr-man.py => tools/doc_generate/autodoc_man.py
- files modified:
- .bzrignore
- bzr *
- setup.py *
added
removed
bzrlib/branch.py
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# Copyright (C) 2005 Canonical Ltd
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# Copyright (C) 2005, 2006 Canonical Ltd
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#
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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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#
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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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#
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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
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from copy import deepcopy
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from cStringIO import StringIO
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import errno
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import os
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import shutil
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import sys
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from unittest import TestSuite
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from warnings import warn
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import bzrlib
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import bzrlib.bzrdir as bzrdir
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from bzrlib.config import TreeConfig
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.delta import compare_trees
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import bzrlib.errors as errors
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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NoSuchRevision, HistoryMissing, NotBranchError,
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DivergedBranches, LockError,
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UninitializableFormat,
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UnlistableStore,
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UnlistableBranch, NoSuchFile, NotVersionedError,
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NoWorkingTree)
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import bzrlib.inventory as inventory
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from bzrlib.inventory import Inventory
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.lockdir import LockDir
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from bzrlib.osutils import (isdir, quotefn,
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rename, splitpath, sha_file,
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file_kind, abspath, normpath, pathjoin,
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safe_unicode,
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)
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from bzrlib.textui import show_status
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError
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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(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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import remotebranch
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return remotebranch.RemoteBranch(f, **args)
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else:
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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os.mkdir(cache_path)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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return br
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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s = []
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head = rp
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while len(head) >= len(base):
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if head == base:
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break
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head, tail = os.path.split(head)
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if tail:
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s.insert(0, tail)
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else:
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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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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f may be a filename or a URL.
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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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run into the root."""
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if f == None:
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f = os.getcwd()
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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else:
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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orig_f = f
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while True:
106
if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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return f
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head, tail = os.path.split(f)
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if head == 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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f = head
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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class NoSuchRevision(BzrError):
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def __init__(self, branch, revision):
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self.branch = branch
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self.revision = revision
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msg = "Branch %s has no revision %d" % (branch, revision)
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BzrError.__init__(self, msg)
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.repository import Repository
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from bzrlib.revision import (
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get_intervening_revisions,
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is_ancestor,
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NULL_REVISION,
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Revision,
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)
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from bzrlib.store import copy_all
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from bzrlib.symbol_versioning import *
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import bzrlib.transactions as transactions
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from bzrlib.transport import Transport, get_transport
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from bzrlib.tree import EmptyTree, RevisionTree
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import bzrlib.ui
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import bzrlib.xml5
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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
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Base directory of the branch.
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_lock_mode
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None, or 'r' or 'w'
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_lock_count
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If _lock_mode is true, a positive count of the number of times the
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lock has been taken.
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_lock
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Lock object from bzrlib.lock.
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Base directory/url of the branch.
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"""
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# this is really an instance variable - FIXME move it there
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# - RBC 20060112
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base = None
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_lock_mode = None
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_lock_count = None
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_lock = None
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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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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be versioned.
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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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"""
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from bzrlib.store import ImmutableStore
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if init:
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self.base = os.path.realpath(base)
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self._make_control()
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elif find_root:
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self.base = find_branch_root(base)
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else:
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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from errors import NotBranchError
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raise NotBranchError("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._check_format()
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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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def __str__(self):
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return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
201
if self._lock_mode or self._lock:
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from warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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self._lock.unlock()
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def __init__(self, *ignored, **ignored_too):
96
raise NotImplementedError('The Branch class is abstract')
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@staticmethod
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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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@staticmethod
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def open(base, _unsupported=False):
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"""Open the repository rooted at base.
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For instance, if the repository is at URL/.bzr/repository,
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Repository.open(URL) -> a Repository instance.
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"""
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control = bzrdir.BzrDir.open(base, _unsupported)
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return control.open_branch(_unsupported)
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@staticmethod
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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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"""
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control, relpath = bzrdir.BzrDir.open_containing(url)
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return control.open_branch(), relpath
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@staticmethod
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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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through a BzrDir.
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"""
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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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"""
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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_nick(self):
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cfg = self.tree_config()
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return cfg.get_option(u"nickname", default=self.base.split('/')[-2])
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def _set_nick(self, nick):
152
cfg = self.tree_config()
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cfg.set_option(nick, "nickname")
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assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def lock_write(self):
209
if self._lock_mode:
210
if self._lock_mode != 'w':
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from errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_mode)
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self._lock_count += 1
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else:
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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self._lock_count = 1
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raise NotImplementedError('lock_write is abstract')
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def lock_read(self):
225
if self._lock_mode:
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assert self._lock_mode in ('r', 'w'), \
227
"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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else:
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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self._lock_count = 1
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raise NotImplementedError('lock_read is abstract')
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def unlock(self):
239
if not self._lock_mode:
240
from errors import LockError
241
raise LockError('branch %r is not locked' % (self))
242
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if self._lock_count > 1:
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self._lock_count -= 1
245
else:
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self._lock.unlock()
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self._lock = None
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self._lock_mode = self._lock_count = None
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raise NotImplementedError('unlock is abstract')
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def peek_lock_mode(self):
168
"""Return lock mode for the Branch: 'r', 'w' or None"""
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raise NotImplementedError(self.peek_lock_mode)
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
253
return os.path.join(self.base, name)
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def relpath(self, path):
257
"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
260
return _relpath(self.base, path)
261
262
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def controlfilename(self, file_or_path):
264
"""Return location relative to branch."""
265
if isinstance(file_or_path, basestring):
266
file_or_path = [file_or_path]
267
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
271
"""Open a control file for this branch.
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There are two classes of file in the control directory: text
274
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.
277
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Controlfiles should almost never be opened in write mode but
279
rather should be atomically copied and replaced using atomicfile.
280
"""
281
282
fn = self.controlfilename(file_or_path)
283
284
if mode == 'rb' or mode == 'wb':
285
return file(fn, mode)
286
elif mode == 'r' or mode == 'w':
287
# open in binary mode anyhow so there's no newline translation;
288
# codecs uses line buffering by default; don't want that.
289
import codecs
290
return codecs.open(fn, mode + 'b', 'utf-8',
291
buffering=60000)
172
"""Return absolute filename for something in the branch
173
174
XXX: Robert Collins 20051017 what is this used for? why is it a branch
175
method and not a tree method.
176
"""
177
raise NotImplementedError('abspath is abstract')
178
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def bind(self, other):
180
"""Bind the local branch the other branch.
181
182
:param other: The branch to bind to
183
:type other: Branch
184
"""
185
raise errors.UpgradeRequired(self.base)
186
187
@needs_write_lock
188
def fetch(self, from_branch, last_revision=None, pb=None):
189
"""Copy revisions from from_branch into this branch.
190
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:param from_branch: Where to copy from.
192
:param last_revision: What revision to stop at (None for at the end
193
of the branch.
194
:param pb: An optional progress bar to use.
195
196
Returns the copied revision count and the failed revisions in a tuple:
197
(copied, failures).
198
"""
199
if self.base == from_branch.base:
200
return (0, [])
201
if pb is None:
202
nested_pb = bzrlib.ui.ui_factory.nested_progress_bar()
203
pb = nested_pb
292
204
else:
293
raise BzrError("invalid controlfile mode %r" % mode)
294
295
296
297
def _make_control(self):
298
from bzrlib.inventory import Inventory
299
from bzrlib.xml import pack_xml
205
nested_pb = None
206
207
from_branch.lock_read()
208
try:
209
if last_revision is None:
210
pb.update('get source history')
211
from_history = from_branch.revision_history()
212
if from_history:
213
last_revision = from_history[-1]
214
else:
215
# no history in the source branch
216
last_revision = NULL_REVISION
217
return self.repository.fetch(from_branch.repository,
218
revision_id=last_revision,
219
pb=nested_pb)
220
finally:
221
if nested_pb is not None:
222
nested_pb.finished()
223
from_branch.unlock()
224
225
def get_bound_location(self):
226
"""Return the URL of the branch we are bound to.
227
228
Older format branches cannot bind, please be sure to use a metadir
229
branch.
230
"""
231
return None
232
233
def get_master_branch(self):
234
"""Return the branch we are bound to.
300
235
301
os.mkdir(self.controlfilename([]))
302
self.controlfile('README', 'w').write(
303
"This is a Bazaar-NG control directory.\n"
304
"Do not change any files in this directory.\n")
305
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
306
for d in ('text-store', 'inventory-store', 'revision-store'):
307
os.mkdir(self.controlfilename(d))
308
for f in ('revision-history', 'merged-patches',
309
'pending-merged-patches', 'branch-name',
310
'branch-lock',
311
'pending-merges'):
312
self.controlfile(f, 'w').write('')
313
mutter('created control directory in ' + self.base)
314
315
pack_xml(Inventory(gen_root_id()), self.controlfile('inventory','w'))
316
317
318
def _check_format(self):
319
"""Check this branch format is supported.
320
321
The current tool only supports the current unstable format.
322
323
In the future, we might need different in-memory Branch
324
classes to support downlevel branches. But not yet.
236
:return: Either a Branch, or None
325
237
"""
326
# This ignores newlines so that we can open branches created
327
# on Windows from Linux and so on. I think it might be better
328
# to always make all internal files in unix format.
329
fmt = self.controlfile('branch-format', 'r').read()
330
fmt.replace('\r\n', '')
331
if fmt != BZR_BRANCH_FORMAT:
332
raise BzrError('sorry, branch format %r not supported' % fmt,
333
['use a different bzr version',
334
'or remove the .bzr directory and "bzr init" again'])
238
return None
335
239
336
240
def get_root_id(self):
337
241
"""Return the id of this branches root"""
338
inv = self.read_working_inventory()
339
return inv.root.file_id
340
341
def set_root_id(self, file_id):
342
inv = self.read_working_inventory()
343
orig_root_id = inv.root.file_id
344
del inv._byid[inv.root.file_id]
345
inv.root.file_id = file_id
346
inv._byid[inv.root.file_id] = inv.root
347
for fid in inv:
348
entry = inv[fid]
349
if entry.parent_id in (None, orig_root_id):
350
entry.parent_id = inv.root.file_id
351
self._write_inventory(inv)
352
353
def read_working_inventory(self):
354
"""Read the working inventory."""
355
from bzrlib.inventory import Inventory
356
from bzrlib.xml import unpack_xml
357
from time import time
358
before = time()
359
self.lock_read()
360
try:
361
# ElementTree does its own conversion from UTF-8, so open in
362
# binary.
363
inv = unpack_xml(Inventory,
364
self.controlfile('inventory', 'rb'))
365
mutter("loaded inventory of %d items in %f"
366
% (len(inv), time() - before))
367
return inv
368
finally:
369
self.unlock()
370
371
372
def _write_inventory(self, inv):
373
"""Update the working inventory.
374
375
That is to say, the inventory describing changes underway, that
376
will be committed to the next revision.
377
"""
378
from bzrlib.atomicfile import AtomicFile
379
from bzrlib.xml import pack_xml
380
381
self.lock_write()
382
try:
383
f = AtomicFile(self.controlfilename('inventory'), 'wb')
384
try:
385
pack_xml(inv, f)
386
f.commit()
387
finally:
388
f.close()
389
finally:
390
self.unlock()
391
392
mutter('wrote working inventory')
393
394
395
inventory = property(read_working_inventory, _write_inventory, None,
396
"""Inventory for the working copy.""")
397
398
399
def add(self, files, verbose=False, ids=None):
400
"""Make files versioned.
401
402
Note that the command line normally calls smart_add instead.
403
404
This puts the files in the Added state, so that they will be
405
recorded by the next commit.
406
407
files
408
List of paths to add, relative to the base of the tree.
409
410
ids
411
If set, use these instead of automatically generated ids.
412
Must be the same length as the list of files, but may
413
contain None for ids that are to be autogenerated.
414
415
TODO: Perhaps have an option to add the ids even if the files do
416
not (yet) exist.
417
418
TODO: Perhaps return the ids of the files? But then again it
419
is easy to retrieve them if they're needed.
420
421
TODO: Adding a directory should optionally recurse down and
422
add all non-ignored children. Perhaps do that in a
423
higher-level method.
424
"""
425
from bzrlib.textui import show_status
426
# TODO: Re-adding a file that is removed in the working copy
427
# should probably put it back with the previous ID.
428
if isinstance(files, basestring):
429
assert(ids is None or isinstance(ids, basestring))
430
files = [files]
431
if ids is not None:
432
ids = [ids]
433
434
if ids is None:
435
ids = [None] * len(files)
436
else:
437
assert(len(ids) == len(files))
438
439
self.lock_write()
440
try:
441
inv = self.read_working_inventory()
442
for f,file_id in zip(files, ids):
443
if is_control_file(f):
444
raise BzrError("cannot add control file %s" % quotefn(f))
445
446
fp = splitpath(f)
447
448
if len(fp) == 0:
449
raise BzrError("cannot add top-level %r" % f)
450
451
fullpath = os.path.normpath(self.abspath(f))
452
453
try:
454
kind = file_kind(fullpath)
455
except OSError:
456
# maybe something better?
457
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
458
459
if kind != 'file' and kind != 'directory':
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
461
462
if file_id is None:
463
file_id = gen_file_id(f)
464
inv.add_path(f, kind=kind, file_id=file_id)
465
466
if verbose:
467
print 'added', quotefn(f)
468
469
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
470
471
self._write_inventory(inv)
472
finally:
473
self.unlock()
474
475
476
def print_file(self, file, revno):
242
raise NotImplementedError('get_root_id is abstract')
243
244
def print_file(self, file, revision_id):
477
245
"""Print `file` to stdout."""
478
self.lock_read()
479
try:
480
tree = self.revision_tree(self.lookup_revision(revno))
481
# use inventory as it was in that revision
482
file_id = tree.inventory.path2id(file)
483
if not file_id:
484
raise BzrError("%r is not present in revision %s" % (file, revno))
485
tree.print_file(file_id)
486
finally:
487
self.unlock()
488
489
490
def remove(self, files, verbose=False):
491
"""Mark nominated files for removal from the inventory.
492
493
This does not remove their text. This does not run on
494
495
TODO: Refuse to remove modified files unless --force is given?
496
497
TODO: Do something useful with directories.
498
499
TODO: Should this remove the text or not? Tough call; not
500
removing may be useful and the user can just use use rm, and
501
is the opposite of add. Removing it is consistent with most
502
other tools. Maybe an option.
503
"""
504
from bzrlib.textui import show_status
505
## TODO: Normalize names
506
## TODO: Remove nested loops; better scalability
507
if isinstance(files, basestring):
508
files = [files]
509
510
self.lock_write()
511
512
try:
513
tree = self.working_tree()
514
inv = tree.inventory
515
516
# do this before any modifications
517
for f in files:
518
fid = inv.path2id(f)
519
if not fid:
520
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
521
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
522
if verbose:
523
# having remove it, it must be either ignored or unknown
524
if tree.is_ignored(f):
525
new_status = 'I'
526
else:
527
new_status = '?'
528
show_status(new_status, inv[fid].kind, quotefn(f))
529
del inv[fid]
530
531
self._write_inventory(inv)
532
finally:
533
self.unlock()
534
535
536
# FIXME: this doesn't need to be a branch method
537
def set_inventory(self, new_inventory_list):
538
from bzrlib.inventory import Inventory, InventoryEntry
539
inv = Inventory(self.get_root_id())
540
for path, file_id, parent, kind in new_inventory_list:
541
name = os.path.basename(path)
542
if name == "":
543
continue
544
inv.add(InventoryEntry(file_id, name, kind, parent))
545
self._write_inventory(inv)
546
547
548
def unknowns(self):
549
"""Return all unknown files.
550
551
These are files in the working directory that are not versioned or
552
control files or ignored.
553
554
>>> b = ScratchBranch(files=['foo', 'foo~'])
555
>>> list(b.unknowns())
556
['foo']
557
>>> b.add('foo')
558
>>> list(b.unknowns())
559
[]
560
>>> b.remove('foo')
561
>>> list(b.unknowns())
562
['foo']
563
"""
564
return self.working_tree().unknowns()
565
246
raise NotImplementedError('print_file is abstract')
566
247
567
248
def append_revision(self, *revision_ids):
568
from bzrlib.atomicfile import AtomicFile
569
570
for revision_id in revision_ids:
571
mutter("add {%s} to revision-history" % revision_id)
572
573
rev_history = self.revision_history()
574
rev_history.extend(revision_ids)
575
576
f = AtomicFile(self.controlfilename('revision-history'))
577
try:
578
for rev_id in rev_history:
579
print >>f, rev_id
580
f.commit()
581
finally:
582
f.close()
583
584
585
def get_revision(self, revision_id):
586
"""Return the Revision object for a named revision"""
587
from bzrlib.revision import Revision
588
from bzrlib.xml import unpack_xml
589
590
self.lock_read()
591
try:
592
if not revision_id or not isinstance(revision_id, basestring):
593
raise ValueError('invalid revision-id: %r' % revision_id)
594
r = unpack_xml(Revision, self.revision_store[revision_id])
595
finally:
596
self.unlock()
597
598
assert r.revision_id == revision_id
599
return r
600
601
602
def get_revision_sha1(self, revision_id):
603
"""Hash the stored value of a revision, and return it."""
604
# In the future, revision entries will be signed. At that
605
# point, it is probably best *not* to include the signature
606
# in the revision hash. Because that lets you re-sign
607
# the revision, (add signatures/remove signatures) and still
608
# have all hash pointers stay consistent.
609
# But for now, just hash the contents.
610
return sha_file(self.revision_store[revision_id])
611
612
613
def get_inventory(self, inventory_id):
614
"""Get Inventory object by hash.
615
616
TODO: Perhaps for this and similar methods, take a revision
617
parameter which can be either an integer revno or a
618
string hash."""
619
from bzrlib.inventory import Inventory
620
from bzrlib.xml import unpack_xml
621
622
return unpack_xml(Inventory, self.inventory_store[inventory_id])
623
624
625
def get_inventory_sha1(self, inventory_id):
626
"""Return the sha1 hash of the inventory entry
627
"""
628
return sha_file(self.inventory_store[inventory_id])
629
630
631
def get_revision_inventory(self, revision_id):
632
"""Return inventory of a past revision."""
633
# bzr 0.0.6 imposes the constraint that the inventory_id
634
# must be the same as its revision, so this is trivial.
635
if revision_id == None:
636
from bzrlib.inventory import Inventory
637
return Inventory(self.get_root_id())
638
else:
639
return self.get_inventory(revision_id)
640
249
raise NotImplementedError('append_revision is abstract')
250
251
def set_revision_history(self, rev_history):
252
raise NotImplementedError('set_revision_history is abstract')
641
253
642
254
def revision_history(self):
643
"""Return sequence of revision hashes on to this branch.
644
645
>>> ScratchBranch().revision_history()
646
[]
647
"""
648
self.lock_read()
649
try:
650
return [l.rstrip('\r\n') for l in
651
self.controlfile('revision-history', 'r').readlines()]
652
finally:
653
self.unlock()
654
655
656
def common_ancestor(self, other, self_revno=None, other_revno=None):
657
"""
658
>>> import commit
659
>>> sb = ScratchBranch(files=['foo', 'foo~'])
660
>>> sb.common_ancestor(sb) == (None, None)
661
True
662
>>> commit.commit(sb, "Committing first revision", verbose=False)
663
>>> sb.common_ancestor(sb)[0]
664
1
665
>>> clone = sb.clone()
666
>>> commit.commit(sb, "Committing second revision", verbose=False)
667
>>> sb.common_ancestor(sb)[0]
668
2
669
>>> sb.common_ancestor(clone)[0]
670
1
671
>>> commit.commit(clone, "Committing divergent second revision",
672
... verbose=False)
673
>>> sb.common_ancestor(clone)[0]
674
1
675
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
676
True
677
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
678
True
679
>>> clone2 = sb.clone()
680
>>> sb.common_ancestor(clone2)[0]
681
2
682
>>> sb.common_ancestor(clone2, self_revno=1)[0]
683
1
684
>>> sb.common_ancestor(clone2, other_revno=1)[0]
685
1
686
"""
687
my_history = self.revision_history()
688
other_history = other.revision_history()
689
if self_revno is None:
690
self_revno = len(my_history)
691
if other_revno is None:
692
other_revno = len(other_history)
693
indices = range(min((self_revno, other_revno)))
694
indices.reverse()
695
for r in indices:
696
if my_history[r] == other_history[r]:
697
return r+1, my_history[r]
698
return None, None
699
700
def enum_history(self, direction):
701
"""Return (revno, revision_id) for history of branch.
702
703
direction
704
'forward' is from earliest to latest
705
'reverse' is from latest to earliest
706
"""
707
rh = self.revision_history()
708
if direction == 'forward':
709
i = 1
710
for rid in rh:
711
yield i, rid
712
i += 1
713
elif direction == 'reverse':
714
i = len(rh)
715
while i > 0:
716
yield i, rh[i-1]
717
i -= 1
718
else:
719
raise ValueError('invalid history direction', direction)
720
255
"""Return sequence of revision hashes on to this branch."""
256
raise NotImplementedError('revision_history is abstract')
721
257
722
258
def revno(self):
723
259
"""Return current revision number for this branch.
727
263
"""
728
264
return len(self.revision_history())
729
265
266
def unbind(self):
267
"""Older format branches cannot bind or unbind."""
268
raise errors.UpgradeRequired(self.base)
730
269
731
def last_patch(self):
732
"""Return last patch hash, or None if no history.
733
"""
270
def last_revision(self):
271
"""Return last patch hash, or None if no history."""
734
272
ph = self.revision_history()
735
273
if ph:
736
274
return ph[-1]
737
275
else:
738
276
return None
739
277
740
741
278
def missing_revisions(self, other, stop_revision=None):
742
"""
279
"""Return a list of new revisions that would perfectly fit.
280
743
281
If self and other have not diverged, return a list of the revisions
744
282
present in other, but missing from self.
745
283
746
>>> from bzrlib.commit import commit
284
>>> from bzrlib.workingtree import WorkingTree
747
285
>>> bzrlib.trace.silent = True
748
>>> br1 = ScratchBranch()
749
>>> br2 = ScratchBranch()
286
>>> d1 = bzrdir.ScratchDir()
287
>>> br1 = d1.open_branch()
288
>>> wt1 = d1.open_workingtree()
289
>>> d2 = bzrdir.ScratchDir()
290
>>> br2 = d2.open_branch()
291
>>> wt2 = d2.open_workingtree()
750
292
>>> br1.missing_revisions(br2)
751
293
[]
752
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
294
>>> wt2.commit("lala!", rev_id="REVISION-ID-1")
753
295
>>> br1.missing_revisions(br2)
754
296
[u'REVISION-ID-1']
755
297
>>> br2.missing_revisions(br1)
756
298
[]
757
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
299
>>> wt1.commit("lala!", rev_id="REVISION-ID-1")
758
300
>>> br1.missing_revisions(br2)
759
301
[]
760
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
302
>>> wt2.commit("lala!", rev_id="REVISION-ID-2A")
761
303
>>> br1.missing_revisions(br2)
762
304
[u'REVISION-ID-2A']
763
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
305
>>> wt1.commit("lala!", rev_id="REVISION-ID-2B")
764
306
>>> br1.missing_revisions(br2)
765
307
Traceback (most recent call last):
766
DivergedBranches: These branches have diverged.
308
DivergedBranches: These branches have diverged. Try merge.
767
309
"""
768
310
self_history = self.revision_history()
769
311
self_len = len(self_history)
776
318
777
319
if stop_revision is None:
778
320
stop_revision = other_len
779
elif stop_revision > other_len:
780
raise NoSuchRevision(self, stop_revision)
781
321
else:
322
assert isinstance(stop_revision, int)
323
if stop_revision > other_len:
324
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
782
325
return other_history[self_len:stop_revision]
783
326
784
785
327
def update_revisions(self, other, stop_revision=None):
786
"""Pull in all new revisions from other branch.
787
788
>>> from bzrlib.commit import commit
789
>>> bzrlib.trace.silent = True
790
>>> br1 = ScratchBranch(files=['foo', 'bar'])
791
>>> br1.add('foo')
792
>>> br1.add('bar')
793
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
794
>>> br2 = ScratchBranch()
795
>>> br2.update_revisions(br1)
796
Added 2 texts.
797
Added 1 inventories.
798
Added 1 revisions.
799
>>> br2.revision_history()
800
[u'REVISION-ID-1']
801
>>> br2.update_revisions(br1)
802
Added 0 texts.
803
Added 0 inventories.
804
Added 0 revisions.
805
>>> br1.text_store.total_size() == br2.text_store.total_size()
806
True
807
"""
808
from bzrlib.progress import ProgressBar
809
810
pb = ProgressBar()
811
812
pb.update('comparing histories')
813
revision_ids = self.missing_revisions(other, stop_revision)
814
815
if hasattr(other.revision_store, "prefetch"):
816
other.revision_store.prefetch(revision_ids)
817
if hasattr(other.inventory_store, "prefetch"):
818
inventory_ids = [other.get_revision(r).inventory_id
819
for r in revision_ids]
820
other.inventory_store.prefetch(inventory_ids)
821
822
revisions = []
823
needed_texts = set()
824
i = 0
825
for rev_id in revision_ids:
826
i += 1
827
pb.update('fetching revision', i, len(revision_ids))
828
rev = other.get_revision(rev_id)
829
revisions.append(rev)
830
inv = other.get_inventory(str(rev.inventory_id))
831
for key, entry in inv.iter_entries():
832
if entry.text_id is None:
833
continue
834
if entry.text_id not in self.text_store:
835
needed_texts.add(entry.text_id)
836
837
pb.clear()
838
839
count = self.text_store.copy_multi(other.text_store, needed_texts)
840
print "Added %d texts." % count
841
inventory_ids = [ f.inventory_id for f in revisions ]
842
count = self.inventory_store.copy_multi(other.inventory_store,
843
inventory_ids)
844
print "Added %d inventories." % count
845
revision_ids = [ f.revision_id for f in revisions]
846
count = self.revision_store.copy_multi(other.revision_store,
847
revision_ids)
848
for revision_id in revision_ids:
849
self.append_revision(revision_id)
850
print "Added %d revisions." % count
851
852
853
def commit(self, *args, **kw):
854
from bzrlib.commit import commit
855
commit(self, *args, **kw)
856
857
858
def lookup_revision(self, revision):
859
"""Return the revision identifier for a given revision information."""
860
revno, info = self.get_revision_info(revision)
861
return info
862
863
def get_revision_info(self, revision):
864
"""Return (revno, revision id) for revision identifier.
865
866
revision can be an integer, in which case it is assumed to be revno (though
867
this will translate negative values into positive ones)
868
revision can also be a string, in which case it is parsed for something like
869
'date:' or 'revid:' etc.
870
"""
871
if revision is None:
872
return 0, None
873
revno = None
874
try:# Convert to int if possible
875
revision = int(revision)
876
except ValueError:
877
pass
878
revs = self.revision_history()
879
if isinstance(revision, int):
880
if revision == 0:
881
return 0, None
882
# Mabye we should do this first, but we don't need it if revision == 0
883
if revision < 0:
884
revno = len(revs) + revision + 1
885
else:
886
revno = revision
887
elif isinstance(revision, basestring):
888
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
889
if revision.startswith(prefix):
890
revno = func(self, revs, revision)
891
break
892
else:
893
raise BzrError('No namespace registered for string: %r' % revision)
894
895
if revno is None or revno <= 0 or revno > len(revs):
896
raise BzrError("no such revision %s" % revision)
897
return revno, revs[revno-1]
898
899
def _namespace_revno(self, revs, revision):
900
"""Lookup a revision by revision number"""
901
assert revision.startswith('revno:')
902
try:
903
return int(revision[6:])
904
except ValueError:
905
return None
906
REVISION_NAMESPACES['revno:'] = _namespace_revno
907
908
def _namespace_revid(self, revs, revision):
909
assert revision.startswith('revid:')
910
try:
911
return revs.index(revision[6:]) + 1
912
except ValueError:
913
return None
914
REVISION_NAMESPACES['revid:'] = _namespace_revid
915
916
def _namespace_last(self, revs, revision):
917
assert revision.startswith('last:')
918
try:
919
offset = int(revision[5:])
920
except ValueError:
921
return None
922
else:
923
if offset <= 0:
924
raise BzrError('You must supply a positive value for --revision last:XXX')
925
return len(revs) - offset + 1
926
REVISION_NAMESPACES['last:'] = _namespace_last
927
928
def _namespace_tag(self, revs, revision):
929
assert revision.startswith('tag:')
930
raise BzrError('tag: namespace registered, but not implemented.')
931
REVISION_NAMESPACES['tag:'] = _namespace_tag
932
933
def _namespace_date(self, revs, revision):
934
assert revision.startswith('date:')
935
import datetime
936
# Spec for date revisions:
937
# date:value
938
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
939
# it can also start with a '+/-/='. '+' says match the first
940
# entry after the given date. '-' is match the first entry before the date
941
# '=' is match the first entry after, but still on the given date.
942
#
943
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
944
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
945
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
946
# May 13th, 2005 at 0:00
947
#
948
# So the proper way of saying 'give me all entries for today' is:
949
# -r {date:+today}:{date:-tomorrow}
950
# The default is '=' when not supplied
951
val = revision[5:]
952
match_style = '='
953
if val[:1] in ('+', '-', '='):
954
match_style = val[:1]
955
val = val[1:]
956
957
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
958
if val.lower() == 'yesterday':
959
dt = today - datetime.timedelta(days=1)
960
elif val.lower() == 'today':
961
dt = today
962
elif val.lower() == 'tomorrow':
963
dt = today + datetime.timedelta(days=1)
964
else:
965
import re
966
# This should be done outside the function to avoid recompiling it.
967
_date_re = re.compile(
968
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
969
r'(,|T)?\s*'
970
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
971
)
972
m = _date_re.match(val)
973
if not m or (not m.group('date') and not m.group('time')):
974
raise BzrError('Invalid revision date %r' % revision)
975
976
if m.group('date'):
977
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
978
else:
979
year, month, day = today.year, today.month, today.day
980
if m.group('time'):
981
hour = int(m.group('hour'))
982
minute = int(m.group('minute'))
983
if m.group('second'):
984
second = int(m.group('second'))
985
else:
986
second = 0
987
else:
988
hour, minute, second = 0,0,0
989
990
dt = datetime.datetime(year=year, month=month, day=day,
991
hour=hour, minute=minute, second=second)
992
first = dt
993
last = None
994
reversed = False
995
if match_style == '-':
996
reversed = True
997
elif match_style == '=':
998
last = dt + datetime.timedelta(days=1)
999
1000
if reversed:
1001
for i in range(len(revs)-1, -1, -1):
1002
r = self.get_revision(revs[i])
1003
# TODO: Handle timezone.
1004
dt = datetime.datetime.fromtimestamp(r.timestamp)
1005
if first >= dt and (last is None or dt >= last):
1006
return i+1
1007
else:
1008
for i in range(len(revs)):
1009
r = self.get_revision(revs[i])
1010
# TODO: Handle timezone.
1011
dt = datetime.datetime.fromtimestamp(r.timestamp)
1012
if first <= dt and (last is None or dt <= last):
1013
return i+1
1014
REVISION_NAMESPACES['date:'] = _namespace_date
1015
1016
def revision_tree(self, revision_id):
1017
"""Return Tree for a revision on this branch.
1018
1019
`revision_id` may be None for the null revision, in which case
1020
an `EmptyTree` is returned."""
1021
from bzrlib.tree import EmptyTree, RevisionTree
1022
# TODO: refactor this to use an existing revision object
1023
# so we don't need to read it in twice.
1024
if revision_id == None:
1025
return EmptyTree(self.get_root_id())
1026
else:
1027
inv = self.get_revision_inventory(revision_id)
1028
return RevisionTree(self.text_store, inv)
1029
1030
1031
def working_tree(self):
1032
"""Return a `Tree` for the working copy."""
1033
from workingtree import WorkingTree
1034
return WorkingTree(self.base, self.read_working_inventory())
1035
328
"""Pull in new perfect-fit revisions.
329
330
:param other: Another Branch to pull from
331
:param stop_revision: Updated until the given revision
332
:return: None
333
"""
334
raise NotImplementedError('update_revisions is abstract')
335
336
def revision_id_to_revno(self, revision_id):
337
"""Given a revision id, return its revno"""
338
if revision_id is None:
339
return 0
340
history = self.revision_history()
341
try:
342
return history.index(revision_id) + 1
343
except ValueError:
344
raise bzrlib.errors.NoSuchRevision(self, revision_id)
345
346
def get_rev_id(self, revno, history=None):
347
"""Find the revision id of the specified revno."""
348
if revno == 0:
349
return None
350
if history is None:
351
history = self.revision_history()
352
elif revno <= 0 or revno > len(history):
353
raise bzrlib.errors.NoSuchRevision(self, revno)
354
return history[revno - 1]
355
356
def pull(self, source, overwrite=False, stop_revision=None):
357
raise NotImplementedError('pull is abstract')
1036
358
1037
359
def basis_tree(self):
1038
360
"""Return `Tree` object for last revision.
1039
361
1040
362
If there are no revisions yet, return an `EmptyTree`.
1041
363
"""
1042
from bzrlib.tree import EmptyTree, RevisionTree
1043
r = self.last_patch()
1044
if r == None:
1045
return EmptyTree(self.get_root_id())
1046
else:
1047
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1048
1049
364
return self.repository.revision_tree(self.last_revision())
1050
365
1051
366
def rename_one(self, from_rel, to_rel):
1052
367
"""Rename one file.
1053
368
1054
369
This can change the directory or the filename or both.
1055
370
"""
1056
self.lock_write()
1057
try:
1058
tree = self.working_tree()
1059
inv = tree.inventory
1060
if not tree.has_filename(from_rel):
1061
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1062
if tree.has_filename(to_rel):
1063
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1064
1065
file_id = inv.path2id(from_rel)
1066
if file_id == None:
1067
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1068
1069
if inv.path2id(to_rel):
1070
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1071
1072
to_dir, to_tail = os.path.split(to_rel)
1073
to_dir_id = inv.path2id(to_dir)
1074
if to_dir_id == None and to_dir != '':
1075
raise BzrError("can't determine destination directory id for %r" % to_dir)
1076
1077
mutter("rename_one:")
1078
mutter(" file_id {%s}" % file_id)
1079
mutter(" from_rel %r" % from_rel)
1080
mutter(" to_rel %r" % to_rel)
1081
mutter(" to_dir %r" % to_dir)
1082
mutter(" to_dir_id {%s}" % to_dir_id)
1083
1084
inv.rename(file_id, to_dir_id, to_tail)
1085
1086
print "%s => %s" % (from_rel, to_rel)
1087
1088
from_abs = self.abspath(from_rel)
1089
to_abs = self.abspath(to_rel)
1090
try:
1091
os.rename(from_abs, to_abs)
1092
except OSError, e:
1093
raise BzrError("failed to rename %r to %r: %s"
1094
% (from_abs, to_abs, e[1]),
1095
["rename rolled back"])
1096
1097
self._write_inventory(inv)
1098
finally:
1099
self.unlock()
1100
371
raise NotImplementedError('rename_one is abstract')
1101
372
1102
373
def move(self, from_paths, to_name):
1103
374
"""Rename files.
1109
380
1110
381
Note that to_name is only the last component of the new name;
1111
382
this doesn't change the directory.
1112
"""
1113
self.lock_write()
1114
try:
1115
## TODO: Option to move IDs only
1116
assert not isinstance(from_paths, basestring)
1117
tree = self.working_tree()
1118
inv = tree.inventory
1119
to_abs = self.abspath(to_name)
1120
if not isdir(to_abs):
1121
raise BzrError("destination %r is not a directory" % to_abs)
1122
if not tree.has_filename(to_name):
1123
raise BzrError("destination %r not in working directory" % to_abs)
1124
to_dir_id = inv.path2id(to_name)
1125
if to_dir_id == None and to_name != '':
1126
raise BzrError("destination %r is not a versioned directory" % to_name)
1127
to_dir_ie = inv[to_dir_id]
1128
if to_dir_ie.kind not in ('directory', 'root_directory'):
1129
raise BzrError("destination %r is not a directory" % to_abs)
1130
1131
to_idpath = inv.get_idpath(to_dir_id)
1132
1133
for f in from_paths:
1134
if not tree.has_filename(f):
1135
raise BzrError("%r does not exist in working tree" % f)
1136
f_id = inv.path2id(f)
1137
if f_id == None:
1138
raise BzrError("%r is not versioned" % f)
1139
name_tail = splitpath(f)[-1]
1140
dest_path = appendpath(to_name, name_tail)
1141
if tree.has_filename(dest_path):
1142
raise BzrError("destination %r already exists" % dest_path)
1143
if f_id in to_idpath:
1144
raise BzrError("can't move %r to a subdirectory of itself" % f)
1145
1146
# OK, so there's a race here, it's possible that someone will
1147
# create a file in this interval and then the rename might be
1148
# left half-done. But we should have caught most problems.
1149
1150
for f in from_paths:
1151
name_tail = splitpath(f)[-1]
1152
dest_path = appendpath(to_name, name_tail)
1153
print "%s => %s" % (f, dest_path)
1154
inv.rename(inv.path2id(f), to_dir_id, name_tail)
383
384
This returns a list of (from_path, to_path) pairs for each
385
entry that is moved.
386
"""
387
raise NotImplementedError('move is abstract')
388
389
def get_parent(self):
390
"""Return the parent location of the branch.
391
392
This is the default location for push/pull/missing. The usual
393
pattern is that the user can override it by specifying a
394
location.
395
"""
396
raise NotImplementedError('get_parent is abstract')
397
398
def get_push_location(self):
399
"""Return the None or the location to push this branch to."""
400
raise NotImplementedError('get_push_location is abstract')
401
402
def set_push_location(self, location):
403
"""Set a new push location for this branch."""
404
raise NotImplementedError('set_push_location is abstract')
405
406
def set_parent(self, url):
407
raise NotImplementedError('set_parent is abstract')
408
409
@needs_write_lock
410
def update(self):
411
"""Synchronise this branch with the master branch if any.
412
413
:return: None or the last_revision pivoted out during the update.
414
"""
415
return None
416
417
def check_revno(self, revno):
418
"""\
419
Check whether a revno corresponds to any revision.
420
Zero (the NULL revision) is considered valid.
421
"""
422
if revno != 0:
423
self.check_real_revno(revno)
424
425
def check_real_revno(self, revno):
426
"""\
427
Check whether a revno corresponds to a real revision.
428
Zero (the NULL revision) is considered invalid
429
"""
430
if revno < 1 or revno > self.revno():
431
raise InvalidRevisionNumber(revno)
432
433
@needs_read_lock
434
def clone(self, *args, **kwargs):
435
"""Clone this branch into to_bzrdir preserving all semantic values.
436
437
revision_id: if not None, the revision history in the new branch will
438
be truncated to end with revision_id.
439
"""
440
# for API compatability, until 0.8 releases we provide the old api:
441
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
442
# after 0.8 releases, the *args and **kwargs should be changed:
443
# def clone(self, to_bzrdir, revision_id=None):
444
if (kwargs.get('to_location', None) or
445
kwargs.get('revision', None) or
446
kwargs.get('basis_branch', None) or
447
(len(args) and isinstance(args[0], basestring))):
448
# backwards compatability api:
449
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
450
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
451
# get basis_branch
452
if len(args) > 2:
453
basis_branch = args[2]
454
else:
455
basis_branch = kwargs.get('basis_branch', None)
456
if basis_branch:
457
basis = basis_branch.bzrdir
458
else:
459
basis = None
460
# get revision
461
if len(args) > 1:
462
revision_id = args[1]
463
else:
464
revision_id = kwargs.get('revision', None)
465
# get location
466
if len(args):
467
url = args[0]
468
else:
469
# no default to raise if not provided.
470
url = kwargs.get('to_location')
471
return self.bzrdir.clone(url,
472
revision_id=revision_id,
473
basis=basis).open_branch()
474
# new cleaner api.
475
# generate args by hand
476
if len(args) > 1:
477
revision_id = args[1]
478
else:
479
revision_id = kwargs.get('revision_id', None)
480
if len(args):
481
to_bzrdir = args[0]
482
else:
483
# no default to raise if not provided.
484
to_bzrdir = kwargs.get('to_bzrdir')
485
result = self._format.initialize(to_bzrdir)
486
self.copy_content_into(result, revision_id=revision_id)
487
return result
488
489
@needs_read_lock
490
def sprout(self, to_bzrdir, revision_id=None):
491
"""Create a new line of development from the branch, into to_bzrdir.
492
493
revision_id: if not None, the revision history in the new branch will
494
be truncated to end with revision_id.
495
"""
496
result = self._format.initialize(to_bzrdir)
497
self.copy_content_into(result, revision_id=revision_id)
498
result.set_parent(self.bzrdir.root_transport.base)
499
return result
500
501
@needs_read_lock
502
def copy_content_into(self, destination, revision_id=None):
503
"""Copy the content of self into destination.
504
505
revision_id: if not None, the revision history in the new branch will
506
be truncated to end with revision_id.
507
"""
508
new_history = self.revision_history()
509
if revision_id is not None:
510
try:
511
new_history = new_history[:new_history.index(revision_id) + 1]
512
except ValueError:
513
rev = self.repository.get_revision(revision_id)
514
new_history = rev.get_history(self.repository)[1:]
515
destination.set_revision_history(new_history)
516
parent = self.get_parent()
517
if parent:
518
destination.set_parent(parent)
519
520
521
class BranchFormat(object):
522
"""An encapsulation of the initialization and open routines for a format.
523
524
Formats provide three things:
525
* An initialization routine,
526
* a format string,
527
* an open routine.
528
529
Formats are placed in an dict by their format string for reference
530
during branch opening. Its not required that these be instances, they
531
can be classes themselves with class methods - it simply depends on
532
whether state is needed for a given format or not.
533
534
Once a format is deprecated, just deprecate the initialize and open
535
methods on the format class. Do not deprecate the object, as the
536
object will be created every time regardless.
537
"""
538
539
_default_format = None
540
"""The default format used for new branches."""
541
542
_formats = {}
543
"""The known formats."""
544
545
@classmethod
546
def find_format(klass, a_bzrdir):
547
"""Return the format for the branch object in a_bzrdir."""
548
try:
549
transport = a_bzrdir.get_branch_transport(None)
550
format_string = transport.get("format").read()
551
return klass._formats[format_string]
552
except NoSuchFile:
553
raise NotBranchError(path=transport.base)
554
except KeyError:
555
raise errors.UnknownFormatError(format_string)
556
557
@classmethod
558
def get_default_format(klass):
559
"""Return the current default format."""
560
return klass._default_format
561
562
def get_format_string(self):
563
"""Return the ASCII format string that identifies this format."""
564
raise NotImplementedError(self.get_format_string)
565
566
def get_format_description(self):
567
"""Return the short format description for this format."""
568
raise NotImplementedError(self.get_format_string)
569
570
def initialize(self, a_bzrdir):
571
"""Create a branch of this format in a_bzrdir."""
572
raise NotImplementedError(self.initialized)
573
574
def is_supported(self):
575
"""Is this format supported?
576
577
Supported formats can be initialized and opened.
578
Unsupported formats may not support initialization or committing or
579
some other features depending on the reason for not being supported.
580
"""
581
return True
582
583
def open(self, a_bzrdir, _found=False):
584
"""Return the branch object for a_bzrdir
585
586
_found is a private parameter, do not use it. It is used to indicate
587
if format probing has already be done.
588
"""
589
raise NotImplementedError(self.open)
590
591
@classmethod
592
def register_format(klass, format):
593
klass._formats[format.get_format_string()] = format
594
595
@classmethod
596
def set_default_format(klass, format):
597
klass._default_format = format
598
599
@classmethod
600
def unregister_format(klass, format):
601
assert klass._formats[format.get_format_string()] is format
602
del klass._formats[format.get_format_string()]
603
604
def __str__(self):
605
return self.get_format_string().rstrip()
606
607
608
class BzrBranchFormat4(BranchFormat):
609
"""Bzr branch format 4.
610
611
This format has:
612
- a revision-history file.
613
- a branch-lock lock file [ to be shared with the bzrdir ]
614
"""
615
616
def get_format_description(self):
617
"""See BranchFormat.get_format_description()."""
618
return "Branch format 4"
619
620
def initialize(self, a_bzrdir):
621
"""Create a branch of this format in a_bzrdir."""
622
mutter('creating branch in %s', a_bzrdir.transport.base)
623
branch_transport = a_bzrdir.get_branch_transport(self)
624
utf8_files = [('revision-history', ''),
625
('branch-name', ''),
626
]
627
control_files = LockableFiles(branch_transport, 'branch-lock',
628
TransportLock)
629
control_files.create_lock()
630
control_files.lock_write()
631
try:
632
for file, content in utf8_files:
633
control_files.put_utf8(file, content)
634
finally:
635
control_files.unlock()
636
return self.open(a_bzrdir, _found=True)
637
638
def __init__(self):
639
super(BzrBranchFormat4, self).__init__()
640
self._matchingbzrdir = bzrdir.BzrDirFormat6()
641
642
def open(self, a_bzrdir, _found=False):
643
"""Return the branch object for a_bzrdir
644
645
_found is a private parameter, do not use it. It is used to indicate
646
if format probing has already be done.
647
"""
648
if not _found:
649
# we are being called directly and must probe.
650
raise NotImplementedError
651
return BzrBranch(_format=self,
652
_control_files=a_bzrdir._control_files,
653
a_bzrdir=a_bzrdir,
654
_repository=a_bzrdir.open_repository())
655
656
def __str__(self):
657
return "Bazaar-NG branch format 4"
658
659
660
class BzrBranchFormat5(BranchFormat):
661
"""Bzr branch format 5.
662
663
This format has:
664
- a revision-history file.
665
- a format string
666
- a lock dir guarding the branch itself
667
- all of this stored in a branch/ subdirectory
668
- works with shared repositories.
669
670
This format is new in bzr 0.8.
671
"""
672
673
def get_format_string(self):
674
"""See BranchFormat.get_format_string()."""
675
return "Bazaar-NG branch format 5\n"
676
677
def get_format_description(self):
678
"""See BranchFormat.get_format_description()."""
679
return "Branch format 5"
680
681
def initialize(self, a_bzrdir):
682
"""Create a branch of this format in a_bzrdir."""
683
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
684
branch_transport = a_bzrdir.get_branch_transport(self)
685
utf8_files = [('revision-history', ''),
686
('branch-name', ''),
687
]
688
control_files = LockableFiles(branch_transport, 'lock', LockDir)
689
control_files.create_lock()
690
control_files.lock_write()
691
control_files.put_utf8('format', self.get_format_string())
692
try:
693
for file, content in utf8_files:
694
control_files.put_utf8(file, content)
695
finally:
696
control_files.unlock()
697
return self.open(a_bzrdir, _found=True, )
698
699
def __init__(self):
700
super(BzrBranchFormat5, self).__init__()
701
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
702
703
def open(self, a_bzrdir, _found=False):
704
"""Return the branch object for a_bzrdir
705
706
_found is a private parameter, do not use it. It is used to indicate
707
if format probing has already be done.
708
"""
709
if not _found:
710
format = BranchFormat.find_format(a_bzrdir)
711
assert format.__class__ == self.__class__
712
transport = a_bzrdir.get_branch_transport(None)
713
control_files = LockableFiles(transport, 'lock', LockDir)
714
return BzrBranch5(_format=self,
715
_control_files=control_files,
716
a_bzrdir=a_bzrdir,
717
_repository=a_bzrdir.find_repository())
718
719
def __str__(self):
720
return "Bazaar-NG Metadir branch format 5"
721
722
723
class BranchReferenceFormat(BranchFormat):
724
"""Bzr branch reference format.
725
726
Branch references are used in implementing checkouts, they
727
act as an alias to the real branch which is at some other url.
728
729
This format has:
730
- A location file
731
- a format string
732
"""
733
734
def get_format_string(self):
735
"""See BranchFormat.get_format_string()."""
736
return "Bazaar-NG Branch Reference Format 1\n"
737
738
def get_format_description(self):
739
"""See BranchFormat.get_format_description()."""
740
return "Checkout reference format 1"
741
742
def initialize(self, a_bzrdir, target_branch=None):
743
"""Create a branch of this format in a_bzrdir."""
744
if target_branch is None:
745
# this format does not implement branch itself, thus the implicit
746
# creation contract must see it as uninitializable
747
raise errors.UninitializableFormat(self)
748
mutter('creating branch reference in %s', a_bzrdir.transport.base)
749
branch_transport = a_bzrdir.get_branch_transport(self)
750
# FIXME rbc 20060209 one j-a-ms encoding branch lands this str() cast is not needed.
751
branch_transport.put('location', StringIO(str(target_branch.bzrdir.root_transport.base)))
752
branch_transport.put('format', StringIO(self.get_format_string()))
753
return self.open(a_bzrdir, _found=True)
754
755
def __init__(self):
756
super(BranchReferenceFormat, self).__init__()
757
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
758
759
def _make_reference_clone_function(format, a_branch):
760
"""Create a clone() routine for a branch dynamically."""
761
def clone(to_bzrdir, revision_id=None):
762
"""See Branch.clone()."""
763
return format.initialize(to_bzrdir, a_branch)
764
# cannot obey revision_id limits when cloning a reference ...
765
# FIXME RBC 20060210 either nuke revision_id for clone, or
766
# emit some sort of warning/error to the caller ?!
767
return clone
768
769
def open(self, a_bzrdir, _found=False):
770
"""Return the branch that the branch reference in a_bzrdir points at.
771
772
_found is a private parameter, do not use it. It is used to indicate
773
if format probing has already be done.
774
"""
775
if not _found:
776
format = BranchFormat.find_format(a_bzrdir)
777
assert format.__class__ == self.__class__
778
transport = a_bzrdir.get_branch_transport(None)
779
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
780
result = real_bzrdir.open_branch()
781
# this changes the behaviour of result.clone to create a new reference
782
# rather than a copy of the content of the branch.
783
# I did not use a proxy object because that needs much more extensive
784
# testing, and we are only changing one behaviour at the moment.
785
# If we decide to alter more behaviours - i.e. the implicit nickname
786
# then this should be refactored to introduce a tested proxy branch
787
# and a subclass of that for use in overriding clone() and ....
788
# - RBC 20060210
789
result.clone = self._make_reference_clone_function(result)
790
return result
791
792
793
# formats which have no format string are not discoverable
794
# and not independently creatable, so are not registered.
795
__default_format = BzrBranchFormat5()
796
BranchFormat.register_format(__default_format)
797
BranchFormat.register_format(BranchReferenceFormat())
798
BranchFormat.set_default_format(__default_format)
799
_legacy_formats = [BzrBranchFormat4(),
800
]
801
802
class BzrBranch(Branch):
803
"""A branch stored in the actual filesystem.
804
805
Note that it's "local" in the context of the filesystem; it doesn't
806
really matter if it's on an nfs/smb/afs/coda/... share, as long as
807
it's writable, and can be accessed via the normal filesystem API.
808
"""
809
810
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
811
relax_version_check=DEPRECATED_PARAMETER, _format=None,
812
_control_files=None, a_bzrdir=None, _repository=None):
813
"""Create new branch object at a particular location.
814
815
transport -- A Transport object, defining how to access files.
816
817
init -- If True, create new control files in a previously
818
unversioned directory. If False, the branch must already
819
be versioned.
820
821
relax_version_check -- If true, the usual check for the branch
822
version is not applied. This is intended only for
823
upgrade/recovery type use; it's not guaranteed that
824
all operations will work on old format branches.
825
"""
826
if a_bzrdir is None:
827
self.bzrdir = bzrdir.BzrDir.open(transport.base)
828
else:
829
self.bzrdir = a_bzrdir
830
self._transport = self.bzrdir.transport.clone('..')
831
self._base = self._transport.base
832
self._format = _format
833
if _control_files is None:
834
raise BzrBadParameterMissing('_control_files')
835
self.control_files = _control_files
836
if deprecated_passed(init):
837
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
838
"deprecated as of bzr 0.8. Please use Branch.create().",
839
DeprecationWarning,
840
stacklevel=2)
841
if init:
842
# this is slower than before deprecation, oh well never mind.
843
# -> its deprecated.
844
self._initialize(transport.base)
845
self._check_format(_format)
846
if deprecated_passed(relax_version_check):
847
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
848
"relax_version_check parameter is deprecated as of bzr 0.8. "
849
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
850
"open() method.",
851
DeprecationWarning,
852
stacklevel=2)
853
if (not relax_version_check
854
and not self._format.is_supported()):
855
raise errors.UnsupportedFormatError(
856
'sorry, branch format %r not supported' % fmt,
857
['use a different bzr version',
858
'or remove the .bzr directory'
859
' and "bzr init" again'])
860
if deprecated_passed(transport):
861
warn("BzrBranch.__init__(transport=XXX...): The transport "
862
"parameter is deprecated as of bzr 0.8. "
863
"Please use Branch.open, or bzrdir.open_branch().",
864
DeprecationWarning,
865
stacklevel=2)
866
self.repository = _repository
867
868
def __str__(self):
869
return '%s(%r)' % (self.__class__.__name__, self.base)
870
871
__repr__ = __str__
872
873
def __del__(self):
874
# TODO: It might be best to do this somewhere else,
875
# but it is nice for a Branch object to automatically
876
# cache it's information.
877
# Alternatively, we could have the Transport objects cache requests
878
# See the earlier discussion about how major objects (like Branch)
879
# should never expect their __del__ function to run.
880
# XXX: cache_root seems to be unused, 2006-01-13 mbp
881
if hasattr(self, 'cache_root') and self.cache_root is not None:
882
try:
883
shutil.rmtree(self.cache_root)
884
except:
885
pass
886
self.cache_root = None
887
888
def _get_base(self):
889
return self._base
890
891
base = property(_get_base, doc="The URL for the root of this branch.")
892
893
def _finish_transaction(self):
894
"""Exit the current transaction."""
895
return self.control_files._finish_transaction()
896
897
def get_transaction(self):
898
"""Return the current active transaction.
899
900
If no transaction is active, this returns a passthrough object
901
for which all data is immediately flushed and no caching happens.
902
"""
903
# this is an explicit function so that we can do tricky stuff
904
# when the storage in rev_storage is elsewhere.
905
# we probably need to hook the two 'lock a location' and
906
# 'have a transaction' together more delicately, so that
907
# we can have two locks (branch and storage) and one transaction
908
# ... and finishing the transaction unlocks both, but unlocking
909
# does not. - RBC 20051121
910
return self.control_files.get_transaction()
911
912
def _set_transaction(self, transaction):
913
"""Set a new active transaction."""
914
return self.control_files._set_transaction(transaction)
915
916
def abspath(self, name):
917
"""See Branch.abspath."""
918
return self.control_files._transport.abspath(name)
919
920
def _check_format(self, format):
921
"""Identify the branch format if needed.
922
923
The format is stored as a reference to the format object in
924
self._format for code that needs to check it later.
925
926
The format parameter is either None or the branch format class
927
used to open this branch.
928
929
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
930
"""
931
if format is None:
932
format = BzrBranchFormat.find_format(self.bzrdir)
933
self._format = format
934
mutter("got branch format %s", self._format)
935
936
@needs_read_lock
937
def get_root_id(self):
938
"""See Branch.get_root_id."""
939
tree = self.repository.revision_tree(self.last_revision())
940
return tree.inventory.root.file_id
941
942
def lock_write(self):
943
# TODO: test for failed two phase locks. This is known broken.
944
self.control_files.lock_write()
945
self.repository.lock_write()
946
947
def lock_read(self):
948
# TODO: test for failed two phase locks. This is known broken.
949
self.control_files.lock_read()
950
self.repository.lock_read()
951
952
def unlock(self):
953
# TODO: test for failed two phase locks. This is known broken.
954
self.repository.unlock()
955
self.control_files.unlock()
956
957
def peek_lock_mode(self):
958
if self.control_files._lock_count == 0:
959
return None
960
else:
961
return self.control_files._lock_mode
962
963
@needs_read_lock
964
def print_file(self, file, revision_id):
965
"""See Branch.print_file."""
966
return self.repository.print_file(file, revision_id)
967
968
@needs_write_lock
969
def append_revision(self, *revision_ids):
970
"""See Branch.append_revision."""
971
for revision_id in revision_ids:
972
mutter("add {%s} to revision-history" % revision_id)
973
rev_history = self.revision_history()
974
rev_history.extend(revision_ids)
975
self.set_revision_history(rev_history)
976
977
@needs_write_lock
978
def set_revision_history(self, rev_history):
979
"""See Branch.set_revision_history."""
980
self.control_files.put_utf8(
981
'revision-history', '\n'.join(rev_history))
982
transaction = self.get_transaction()
983
history = transaction.map.find_revision_history()
984
if history is not None:
985
# update the revision history in the identity map.
986
history[:] = list(rev_history)
987
# this call is disabled because revision_history is
988
# not really an object yet, and the transaction is for objects.
989
# transaction.register_dirty(history)
990
else:
991
transaction.map.add_revision_history(rev_history)
992
# this call is disabled because revision_history is
993
# not really an object yet, and the transaction is for objects.
994
# transaction.register_clean(history)
995
996
def get_revision_delta(self, revno):
997
"""Return the delta for one revision.
998
999
The delta is relative to its mainline predecessor, or the
1000
empty tree for revision 1.
1001
"""
1002
assert isinstance(revno, int)
1003
rh = self.revision_history()
1004
if not (1 <= revno <= len(rh)):
1005
raise InvalidRevisionNumber(revno)
1006
1007
# revno is 1-based; list is 0-based
1008
1009
new_tree = self.repository.revision_tree(rh[revno-1])
1010
if revno == 1:
1011
old_tree = EmptyTree()
1012
else:
1013
old_tree = self.repository.revision_tree(rh[revno-2])
1014
return compare_trees(old_tree, new_tree)
1015
1016
@needs_read_lock
1017
def revision_history(self):
1018
"""See Branch.revision_history."""
1019
transaction = self.get_transaction()
1020
history = transaction.map.find_revision_history()
1021
if history is not None:
1022
mutter("cache hit for revision-history in %s", self)
1023
return list(history)
1024
history = [l.rstrip('\r\n') for l in
1025
self.control_files.get_utf8('revision-history').readlines()]
1026
transaction.map.add_revision_history(history)
1027
# this call is disabled because revision_history is
1028
# not really an object yet, and the transaction is for objects.
1029
# transaction.register_clean(history, precious=True)
1030
return list(history)
1031
1032
@needs_write_lock
1033
def update_revisions(self, other, stop_revision=None):
1034
"""See Branch.update_revisions."""
1035
other.lock_read()
1036
try:
1037
if stop_revision is None:
1038
stop_revision = other.last_revision()
1039
if stop_revision is None:
1040
# if there are no commits, we're done.
1041
return
1042
# whats the current last revision, before we fetch [and change it
1043
# possibly]
1044
last_rev = self.last_revision()
1045
# we fetch here regardless of whether we need to so that we pickup
1046
# filled in ghosts.
1047
self.fetch(other, stop_revision)
1048
my_ancestry = self.repository.get_ancestry(last_rev)
1049
if stop_revision in my_ancestry:
1050
# last_revision is a descendant of stop_revision
1051
return
1052
# stop_revision must be a descendant of last_revision
1053
stop_graph = self.repository.get_revision_graph(stop_revision)
1054
if last_rev is not None and last_rev not in stop_graph:
1055
# our previous tip is not merged into stop_revision
1056
raise errors.DivergedBranches(self, other)
1057
# make a new revision history from the graph
1058
current_rev_id = stop_revision
1059
new_history = []
1060
while current_rev_id not in (None, NULL_REVISION):
1061
new_history.append(current_rev_id)
1062
current_rev_id_parents = stop_graph[current_rev_id]
1155
1063
try:
1156
os.rename(self.abspath(f), self.abspath(dest_path))
1157
except OSError, e:
1158
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1159
["rename rolled back"])
1160
1161
self._write_inventory(inv)
1162
finally:
1163
self.unlock()
1164
1165
1166
def revert(self, filenames, old_tree=None, backups=True):
1167
"""Restore selected files to the versions from a previous tree.
1168
1169
backups
1170
If true (default) backups are made of files before
1171
they're renamed.
1172
"""
1173
from bzrlib.errors import NotVersionedError, BzrError
1174
from bzrlib.atomicfile import AtomicFile
1175
from bzrlib.osutils import backup_file
1176
1177
inv = self.read_working_inventory()
1178
if old_tree is None:
1179
old_tree = self.basis_tree()
1180
old_inv = old_tree.inventory
1181
1182
nids = []
1183
for fn in filenames:
1184
file_id = inv.path2id(fn)
1185
if not file_id:
1186
raise NotVersionedError("not a versioned file", fn)
1187
if not old_inv.has_id(file_id):
1188
raise BzrError("file not present in old tree", fn, file_id)
1189
nids.append((fn, file_id))
1190
1191
# TODO: Rename back if it was previously at a different location
1192
1193
# TODO: If given a directory, restore the entire contents from
1194
# the previous version.
1195
1196
# TODO: Make a backup to a temporary file.
1197
1198
# TODO: If the file previously didn't exist, delete it?
1199
for fn, file_id in nids:
1200
backup_file(fn)
1201
1202
f = AtomicFile(fn, 'wb')
1203
try:
1204
f.write(old_tree.get_file(file_id).read())
1205
f.commit()
1206
finally:
1207
f.close()
1208
1209
1210
def pending_merges(self):
1211
"""Return a list of pending merges.
1212
1213
These are revisions that have been merged into the working
1214
directory but not yet committed.
1215
"""
1216
cfn = self.controlfilename('pending-merges')
1217
if not os.path.exists(cfn):
1218
return []
1219
p = []
1220
for l in self.controlfile('pending-merges', 'r').readlines():
1221
p.append(l.rstrip('\n'))
1222
return p
1223
1224
1225
def add_pending_merge(self, revision_id):
1226
from bzrlib.revision import validate_revision_id
1227
1228
validate_revision_id(revision_id)
1229
1230
p = self.pending_merges()
1231
if revision_id in p:
1232
return
1233
p.append(revision_id)
1234
self.set_pending_merges(p)
1235
1236
1237
def set_pending_merges(self, rev_list):
1238
from bzrlib.atomicfile import AtomicFile
1239
self.lock_write()
1240
try:
1241
f = AtomicFile(self.controlfilename('pending-merges'))
1242
try:
1243
for l in rev_list:
1244
print >>f, l
1245
f.commit()
1246
finally:
1247
f.close()
1248
finally:
1249
self.unlock()
1250
1251
1252
1253
class ScratchBranch(Branch):
1254
"""Special test class: a branch that cleans up after itself.
1255
1256
>>> b = ScratchBranch()
1257
>>> isdir(b.base)
1258
True
1259
>>> bd = b.base
1260
>>> b.destroy()
1261
>>> isdir(bd)
1262
False
1263
"""
1264
def __init__(self, files=[], dirs=[], base=None):
1265
"""Make a test branch.
1266
1267
This creates a temporary directory and runs init-tree in it.
1268
1269
If any files are listed, they are created in the working copy.
1270
"""
1271
from tempfile import mkdtemp
1272
init = False
1273
if base is None:
1274
base = mkdtemp()
1275
init = True
1276
Branch.__init__(self, base, init=init)
1277
for d in dirs:
1278
os.mkdir(self.abspath(d))
1279
1280
for f in files:
1281
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1282
1283
1284
def clone(self):
1285
"""
1286
>>> orig = ScratchBranch(files=["file1", "file2"])
1287
>>> clone = orig.clone()
1288
>>> os.path.samefile(orig.base, clone.base)
1289
False
1290
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1291
True
1292
"""
1293
from shutil import copytree
1294
from tempfile import mkdtemp
1295
base = mkdtemp()
1296
os.rmdir(base)
1297
copytree(self.base, base, symlinks=True)
1298
return ScratchBranch(base=base)
1299
1300
def __del__(self):
1301
self.destroy()
1302
1303
def destroy(self):
1304
"""Destroy the test branch, removing the scratch directory."""
1305
from shutil import rmtree
1306
try:
1307
if self.base:
1308
mutter("delete ScratchBranch %s" % self.base)
1309
rmtree(self.base)
1310
except OSError, e:
1311
# Work around for shutil.rmtree failing on Windows when
1312
# readonly files are encountered
1313
mutter("hit exception in destroying ScratchBranch: %s" % e)
1314
for root, dirs, files in os.walk(self.base, topdown=False):
1315
for name in files:
1316
os.chmod(os.path.join(root, name), 0700)
1317
rmtree(self.base)
1318
self.base = None
1319
1064
current_rev_id = current_rev_id_parents[0]
1065
except IndexError:
1066
current_rev_id = None
1067
new_history.reverse()
1068
self.set_revision_history(new_history)
1069
finally:
1070
other.unlock()
1071
1072
@deprecated_method(zero_eight)
1073
def pullable_revisions(self, other, stop_revision):
1074
"""Please use bzrlib.missing instead."""
1075
other_revno = other.revision_id_to_revno(stop_revision)
1076
try:
1077
return self.missing_revisions(other, other_revno)
1078
except DivergedBranches, e:
1079
try:
1080
pullable_revs = get_intervening_revisions(self.last_revision(),
1081
stop_revision,
1082
self.repository)
1083
assert self.last_revision() not in pullable_revs
1084
return pullable_revs
1085
except bzrlib.errors.NotAncestor:
1086
if is_ancestor(self.last_revision(), stop_revision, self):
1087
return []
1088
else:
1089
raise e
1090
1091
def basis_tree(self):
1092
"""See Branch.basis_tree."""
1093
return self.repository.revision_tree(self.last_revision())
1094
1095
@deprecated_method(zero_eight)
1096
def working_tree(self):
1097
"""Create a Working tree object for this branch."""
1098
from bzrlib.workingtree import WorkingTree
1099
from bzrlib.transport.local import LocalTransport
1100
if (self.base.find('://') != -1 or
1101
not isinstance(self._transport, LocalTransport)):
1102
raise NoWorkingTree(self.base)
1103
return self.bzrdir.open_workingtree()
1104
1105
@needs_write_lock
1106
def pull(self, source, overwrite=False, stop_revision=None):
1107
"""See Branch.pull."""
1108
source.lock_read()
1109
try:
1110
old_count = len(self.revision_history())
1111
try:
1112
self.update_revisions(source,stop_revision)
1113
except DivergedBranches:
1114
if not overwrite:
1115
raise
1116
if overwrite:
1117
self.set_revision_history(source.revision_history())
1118
new_count = len(self.revision_history())
1119
return new_count - old_count
1120
finally:
1121
source.unlock()
1122
1123
def get_parent(self):
1124
"""See Branch.get_parent."""
1125
import errno
1126
_locs = ['parent', 'pull', 'x-pull']
1127
for l in _locs:
1128
try:
1129
return self.control_files.get_utf8(l).read().strip('\n')
1130
except NoSuchFile:
1131
pass
1132
return None
1133
1134
def get_push_location(self):
1135
"""See Branch.get_push_location."""
1136
config = bzrlib.config.BranchConfig(self)
1137
push_loc = config.get_user_option('push_location')
1138
return push_loc
1139
1140
def set_push_location(self, location):
1141
"""See Branch.set_push_location."""
1142
config = bzrlib.config.LocationConfig(self.base)
1143
config.set_user_option('push_location', location)
1144
1145
@needs_write_lock
1146
def set_parent(self, url):
1147
"""See Branch.set_parent."""
1148
# TODO: Maybe delete old location files?
1149
# URLs should never be unicode, even on the local fs,
1150
# FIXUP this and get_parent in a future branch format bump:
1151
# read and rewrite the file, and have the new format code read
1152
# using .get not .get_utf8. RBC 20060125
1153
if url is None:
1154
self.control_files._transport.delete('parent')
1155
else:
1156
self.control_files.put_utf8('parent', url + '\n')
1157
1158
def tree_config(self):
1159
return TreeConfig(self)
1160
1161
1162
class BzrBranch5(BzrBranch):
1163
"""A format 5 branch. This supports new features over plan branches.
1164
1165
It has support for a master_branch which is the data for bound branches.
1166
"""
1167
1168
def __init__(self,
1169
_format,
1170
_control_files,
1171
a_bzrdir,
1172
_repository):
1173
super(BzrBranch5, self).__init__(_format=_format,
1174
_control_files=_control_files,
1175
a_bzrdir=a_bzrdir,
1176
_repository=_repository)
1177
1178
@needs_write_lock
1179
def pull(self, source, overwrite=False, stop_revision=None):
1180
"""Updates branch.pull to be bound branch aware."""
1181
bound_location = self.get_bound_location()
1182
if source.base != bound_location:
1183
# not pulling from master, so we need to update master.
1184
master_branch = self.get_master_branch()
1185
if master_branch:
1186
master_branch.pull(source)
1187
source = master_branch
1188
return super(BzrBranch5, self).pull(source, overwrite, stop_revision)
1189
1190
def get_bound_location(self):
1191
try:
1192
return self.control_files.get_utf8('bound').read()[:-1]
1193
except errors.NoSuchFile:
1194
return None
1195
1196
@needs_read_lock
1197
def get_master_branch(self):
1198
"""Return the branch we are bound to.
1199
1200
:return: Either a Branch, or None
1201
1202
This could memoise the branch, but if thats done
1203
it must be revalidated on each new lock.
1204
So for now we just dont memoise it.
1205
# RBC 20060304 review this decision.
1206
"""
1207
bound_loc = self.get_bound_location()
1208
if not bound_loc:
1209
return None
1210
try:
1211
return Branch.open(bound_loc)
1212
except (errors.NotBranchError, errors.ConnectionError), e:
1213
raise errors.BoundBranchConnectionFailure(
1214
self, bound_loc, e)
1215
1216
@needs_write_lock
1217
def set_bound_location(self, location):
1218
"""Set the target where this branch is bound to.
1219
1220
:param location: URL to the target branch
1221
"""
1222
if location:
1223
self.control_files.put_utf8('bound', location+'\n')
1224
else:
1225
try:
1226
self.control_files._transport.delete('bound')
1227
except NoSuchFile:
1228
return False
1229
return True
1230
1231
@needs_write_lock
1232
def bind(self, other):
1233
"""Bind the local branch the other branch.
1234
1235
:param other: The branch to bind to
1236
:type other: Branch
1237
"""
1238
# TODO: jam 20051230 Consider checking if the target is bound
1239
# It is debatable whether you should be able to bind to
1240
# a branch which is itself bound.
1241
# Committing is obviously forbidden,
1242
# but binding itself may not be.
1243
# Since we *have* to check at commit time, we don't
1244
# *need* to check here
1245
self.pull(other)
1246
1247
# we are now equal to or a suffix of other.
1248
1249
# Since we have 'pulled' from the remote location,
1250
# now we should try to pull in the opposite direction
1251
# in case the local tree has more revisions than the
1252
# remote one.
1253
# There may be a different check you could do here
1254
# rather than actually trying to install revisions remotely.
1255
# TODO: capture an exception which indicates the remote branch
1256
# is not writeable.
1257
# If it is up-to-date, this probably should not be a failure
1258
1259
# lock other for write so the revision-history syncing cannot race
1260
other.lock_write()
1261
try:
1262
other.pull(self)
1263
# if this does not error, other now has the same last rev we do
1264
# it can only error if the pull from other was concurrent with
1265
# a commit to other from someone else.
1266
1267
# until we ditch revision-history, we need to sync them up:
1268
self.set_revision_history(other.revision_history())
1269
# now other and self are up to date with each other and have the
1270
# same revision-history.
1271
finally:
1272
other.unlock()
1273
1274
self.set_bound_location(other.base)
1275
1276
@needs_write_lock
1277
def unbind(self):
1278
"""If bound, unbind"""
1279
return self.set_bound_location(None)
1280
1281
@needs_write_lock
1282
def update(self):
1283
"""Synchronise this branch with the master branch if any.
1284
1285
:return: None or the last_revision that was pivoted out during the
1286
update.
1287
"""
1288
master = self.get_master_branch()
1289
if master is not None:
1290
old_tip = self.last_revision()
1291
self.pull(master, overwrite=True)
1292
if old_tip in self.repository.get_ancestry(self.last_revision()):
1293
return None
1294
return old_tip
1295
return None
1296
1297
1298
class BranchTestProviderAdapter(object):
1299
"""A tool to generate a suite testing multiple branch formats at once.
1300
1301
This is done by copying the test once for each transport and injecting
1302
the transport_server, transport_readonly_server, and branch_format
1303
classes into each copy. Each copy is also given a new id() to make it
1304
easy to identify.
1305
"""
1306
1307
def __init__(self, transport_server, transport_readonly_server, formats):
1308
self._transport_server = transport_server
1309
self._transport_readonly_server = transport_readonly_server
1310
self._formats = formats
1320
1311
1312
def adapt(self, test):
1313
result = TestSuite()
1314
for branch_format, bzrdir_format in self._formats:
1315
new_test = deepcopy(test)
1316
new_test.transport_server = self._transport_server
1317
new_test.transport_readonly_server = self._transport_readonly_server
1318
new_test.bzrdir_format = bzrdir_format
1319
new_test.branch_format = branch_format
1320
def make_new_test_id():
1321
new_id = "%s(%s)" % (new_test.id(), branch_format.__class__.__name__)
1322
return lambda: new_id
1323
new_test.id = make_new_test_id()
1324
result.addTest(new_test)
1325
return result
1326
1321
1327
1322
1328
######################################################################
1323
1329
# predicates
1324
1330
1325
1331
1326
def is_control_file(filename):
1327
## FIXME: better check
1328
filename = os.path.normpath(filename)
1329
while filename != '':
1330
head, tail = os.path.split(filename)
1331
## mutter('check %r for control file' % ((head, tail), ))
1332
if tail == bzrlib.BZRDIR:
1333
return True
1334
if filename == head:
1335
break
1336
filename = head
1337
return False
1338
1339
1340
1341
def gen_file_id(name):
1342
"""Return new file id.
1343
1344
This should probably generate proper UUIDs, but for the moment we
1345
cope with just randomness because running uuidgen every time is
1346
slow."""
1347
import re
1348
from binascii import hexlify
1349
from time import time
1350
1351
# get last component
1352
idx = name.rfind('/')
1353
if idx != -1:
1354
name = name[idx+1 : ]
1355
idx = name.rfind('\\')
1356
if idx != -1:
1357
name = name[idx+1 : ]
1358
1359
# make it not a hidden file
1360
name = name.lstrip('.')
1361
1362
# remove any wierd characters; we don't escape them but rather
1363
# just pull them out
1364
name = re.sub(r'[^\w.]', '', name)
1365
1366
s = hexlify(rand_bytes(8))
1367
return '-'.join((name, compact_date(time()), s))
1368
1369
1370
def gen_root_id():
1371
"""Return a new tree-root file id."""
1372
return gen_file_id('TREE_ROOT')
1373
1332
@deprecated_function(zero_eight)
1333
def ScratchBranch(*args, **kwargs):
1334
"""See bzrlib.bzrdir.ScratchDir."""
1335
d = ScratchDir(*args, **kwargs)
1336
return d.open_branch()
1337
1338
1339
@deprecated_function(zero_eight)
1340
def is_control_file(*args, **kwargs):
1341
"""See bzrlib.workingtree.is_control_file."""
1342
return bzrlib.workingtree.is_control_file(*args, **kwargs)
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Version: 2.0.1