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- Committer: Robert Collins
- Date: 2006-05-04 10:36:13 UTC
- mto: (1697.1.1 integration)
- mto: This revision was merged to the branch mainline in revision 1701.
- Revision ID: robertc@robertcollins.net-20060504103613-bf4d13f925aa8520
Extend LockableFiles to support break_lock() calls.
- 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
- 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/testdiff.py => bzrlib/tests/test_diff.py
- bzrlib/selftest/testhashcache.py => bzrlib/tests/test_hashcache.py
- bzrlib/selftest/testinv.py => bzrlib/tests/test_inv.py
- bzrlib/selftest/testlog.py => bzrlib/tests/test_log.py
- bzrlib/selftest/testmerge3.py => bzrlib/tests/test_merge3.py
- bzrlib/selftest/plugins.py => bzrlib/tests/test_plugins.py
- bzrlib/selftest/testrevision.py => bzrlib/tests/test_revision.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
1
# Copyright (C) 2005 Canonical Ltd
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1
# 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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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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import os
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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, \
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splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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import bzrlib.errors
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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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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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.
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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:
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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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# 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):
198
return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
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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):
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cfg = self.tree_config()
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cfg.set_option(nick, "nickname")
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assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def lock_write(self):
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if self._lock_mode:
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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):
229
if self._lock_mode:
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assert self._lock_mode in ('r', 'w'), \
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"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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162
raise NotImplementedError('lock_read is abstract')
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def unlock(self):
243
if not self._lock_mode:
244
from errors import LockError
245
raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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else:
250
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):
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"""Return lock mode for the Branch: 'r', 'w' or None"""
169
raise NotImplementedError(self.peek_lock_mode)
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def abspath(self, name):
256
"""Return absolute filename for something in the branch"""
257
return os.path.join(self.base, name)
258
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def relpath(self, path):
261
"""Return path relative to this branch of something inside it.
262
263
Raises an error if path is not in this branch."""
264
return _relpath(self.base, path)
265
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def controlfilename(self, file_or_path):
268
"""Return location relative to branch."""
269
if isinstance(file_or_path, basestring):
270
file_or_path = [file_or_path]
271
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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273
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def controlfile(self, file_or_path, mode='r'):
275
"""Open a control file for this branch.
276
277
There are two classes of file in the control directory: text
278
and binary. binary files are untranslated byte streams. Text
279
control files are stored with Unix newlines and in UTF-8, even
280
if the platform or locale defaults are different.
281
282
Controlfiles should almost never be opened in write mode but
283
rather should be atomically copied and replaced using atomicfile.
284
"""
285
286
fn = self.controlfilename(file_or_path)
287
288
if mode == 'rb' or mode == 'wb':
289
return file(fn, mode)
290
elif mode == 'r' or mode == 'w':
291
# open in binary mode anyhow so there's no newline translation;
292
# codecs uses line buffering by default; don't want that.
293
import codecs
294
return codecs.open(fn, mode + 'b', 'utf-8',
295
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
179
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
191
: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
296
204
else:
297
raise BzrError("invalid controlfile mode %r" % mode)
298
299
300
301
def _make_control(self):
302
from bzrlib.inventory import Inventory
303
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.
304
235
305
os.mkdir(self.controlfilename([]))
306
self.controlfile('README', 'w').write(
307
"This is a Bazaar-NG control directory.\n"
308
"Do not change any files in this directory.\n")
309
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
310
for d in ('text-store', 'inventory-store', 'revision-store'):
311
os.mkdir(self.controlfilename(d))
312
for f in ('revision-history', 'merged-patches',
313
'pending-merged-patches', 'branch-name',
314
'branch-lock',
315
'pending-merges'):
316
self.controlfile(f, 'w').write('')
317
mutter('created control directory in ' + self.base)
318
319
pack_xml(Inventory(gen_root_id()), self.controlfile('inventory','w'))
320
321
322
def _check_format(self):
323
"""Check this branch format is supported.
324
325
The current tool only supports the current unstable format.
326
327
In the future, we might need different in-memory Branch
328
classes to support downlevel branches. But not yet.
236
:return: Either a Branch, or None
329
237
"""
330
# This ignores newlines so that we can open branches created
331
# on Windows from Linux and so on. I think it might be better
332
# to always make all internal files in unix format.
333
fmt = self.controlfile('branch-format', 'r').read()
334
fmt.replace('\r\n', '')
335
if fmt != BZR_BRANCH_FORMAT:
336
raise BzrError('sorry, branch format %r not supported' % fmt,
337
['use a different bzr version',
338
'or remove the .bzr directory and "bzr init" again'])
238
return None
339
239
340
240
def get_root_id(self):
341
241
"""Return the id of this branches root"""
342
inv = self.read_working_inventory()
343
return inv.root.file_id
344
345
def set_root_id(self, file_id):
346
inv = self.read_working_inventory()
347
orig_root_id = inv.root.file_id
348
del inv._byid[inv.root.file_id]
349
inv.root.file_id = file_id
350
inv._byid[inv.root.file_id] = inv.root
351
for fid in inv:
352
entry = inv[fid]
353
if entry.parent_id in (None, orig_root_id):
354
entry.parent_id = inv.root.file_id
355
self._write_inventory(inv)
356
357
def read_working_inventory(self):
358
"""Read the working inventory."""
359
from bzrlib.inventory import Inventory
360
from bzrlib.xml import unpack_xml
361
from time import time
362
before = time()
363
self.lock_read()
364
try:
365
# ElementTree does its own conversion from UTF-8, so open in
366
# binary.
367
inv = unpack_xml(Inventory,
368
self.controlfile('inventory', 'rb'))
369
mutter("loaded inventory of %d items in %f"
370
% (len(inv), time() - before))
371
return inv
372
finally:
373
self.unlock()
374
375
376
def _write_inventory(self, inv):
377
"""Update the working inventory.
378
379
That is to say, the inventory describing changes underway, that
380
will be committed to the next revision.
381
"""
382
from bzrlib.atomicfile import AtomicFile
383
from bzrlib.xml import pack_xml
384
385
self.lock_write()
386
try:
387
f = AtomicFile(self.controlfilename('inventory'), 'wb')
388
try:
389
pack_xml(inv, f)
390
f.commit()
391
finally:
392
f.close()
393
finally:
394
self.unlock()
395
396
mutter('wrote working inventory')
397
398
399
inventory = property(read_working_inventory, _write_inventory, None,
400
"""Inventory for the working copy.""")
401
402
403
def add(self, files, verbose=False, ids=None):
404
"""Make files versioned.
405
406
Note that the command line normally calls smart_add instead.
407
408
This puts the files in the Added state, so that they will be
409
recorded by the next commit.
410
411
files
412
List of paths to add, relative to the base of the tree.
413
414
ids
415
If set, use these instead of automatically generated ids.
416
Must be the same length as the list of files, but may
417
contain None for ids that are to be autogenerated.
418
419
TODO: Perhaps have an option to add the ids even if the files do
420
not (yet) exist.
421
422
TODO: Perhaps return the ids of the files? But then again it
423
is easy to retrieve them if they're needed.
424
425
TODO: Adding a directory should optionally recurse down and
426
add all non-ignored children. Perhaps do that in a
427
higher-level method.
428
"""
429
# TODO: Re-adding a file that is removed in the working copy
430
# should probably put it back with the previous ID.
431
if isinstance(files, basestring):
432
assert(ids is None or isinstance(ids, basestring))
433
files = [files]
434
if ids is not None:
435
ids = [ids]
436
437
if ids is None:
438
ids = [None] * len(files)
439
else:
440
assert(len(ids) == len(files))
441
442
self.lock_write()
443
try:
444
inv = self.read_working_inventory()
445
for f,file_id in zip(files, ids):
446
if is_control_file(f):
447
raise BzrError("cannot add control file %s" % quotefn(f))
448
449
fp = splitpath(f)
450
451
if len(fp) == 0:
452
raise BzrError("cannot add top-level %r" % f)
453
454
fullpath = os.path.normpath(self.abspath(f))
455
456
try:
457
kind = file_kind(fullpath)
458
except OSError:
459
# maybe something better?
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
461
462
if kind != 'file' and kind != 'directory':
463
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
464
465
if file_id is None:
466
file_id = gen_file_id(f)
467
inv.add_path(f, kind=kind, file_id=file_id)
468
469
if verbose:
470
print 'added', quotefn(f)
471
472
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
473
474
self._write_inventory(inv)
475
finally:
476
self.unlock()
477
478
479
def print_file(self, file, revno):
242
raise NotImplementedError('get_root_id is abstract')
243
244
def print_file(self, file, revision_id):
480
245
"""Print `file` to stdout."""
481
self.lock_read()
482
try:
483
tree = self.revision_tree(self.lookup_revision(revno))
484
# use inventory as it was in that revision
485
file_id = tree.inventory.path2id(file)
486
if not file_id:
487
raise BzrError("%r is not present in revision %s" % (file, revno))
488
tree.print_file(file_id)
489
finally:
490
self.unlock()
491
492
493
def remove(self, files, verbose=False):
494
"""Mark nominated files for removal from the inventory.
495
496
This does not remove their text. This does not run on
497
498
TODO: Refuse to remove modified files unless --force is given?
499
500
TODO: Do something useful with directories.
501
502
TODO: Should this remove the text or not? Tough call; not
503
removing may be useful and the user can just use use rm, and
504
is the opposite of add. Removing it is consistent with most
505
other tools. Maybe an option.
506
"""
507
## TODO: Normalize names
508
## TODO: Remove nested loops; better scalability
509
if isinstance(files, basestring):
510
files = [files]
511
512
self.lock_write()
513
514
try:
515
tree = self.working_tree()
516
inv = tree.inventory
517
518
# do this before any modifications
519
for f in files:
520
fid = inv.path2id(f)
521
if not fid:
522
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
523
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
524
if verbose:
525
# having remove it, it must be either ignored or unknown
526
if tree.is_ignored(f):
527
new_status = 'I'
528
else:
529
new_status = '?'
530
show_status(new_status, inv[fid].kind, quotefn(f))
531
del inv[fid]
532
533
self._write_inventory(inv)
534
finally:
535
self.unlock()
536
537
538
# FIXME: this doesn't need to be a branch method
539
def set_inventory(self, new_inventory_list):
540
from bzrlib.inventory import Inventory, InventoryEntry
541
inv = Inventory(self.get_root_id())
542
for path, file_id, parent, kind in new_inventory_list:
543
name = os.path.basename(path)
544
if name == "":
545
continue
546
inv.add(InventoryEntry(file_id, name, kind, parent))
547
self._write_inventory(inv)
548
549
550
def unknowns(self):
551
"""Return all unknown files.
552
553
These are files in the working directory that are not versioned or
554
control files or ignored.
555
556
>>> b = ScratchBranch(files=['foo', 'foo~'])
557
>>> list(b.unknowns())
558
['foo']
559
>>> b.add('foo')
560
>>> list(b.unknowns())
561
[]
562
>>> b.remove('foo')
563
>>> list(b.unknowns())
564
['foo']
565
"""
566
return self.working_tree().unknowns()
567
246
raise NotImplementedError('print_file is abstract')
568
247
569
248
def append_revision(self, *revision_ids):
570
from bzrlib.atomicfile import AtomicFile
571
572
for revision_id in revision_ids:
573
mutter("add {%s} to revision-history" % revision_id)
574
575
rev_history = self.revision_history()
576
rev_history.extend(revision_ids)
577
578
f = AtomicFile(self.controlfilename('revision-history'))
579
try:
580
for rev_id in rev_history:
581
print >>f, rev_id
582
f.commit()
583
finally:
584
f.close()
585
586
587
def get_revision_xml(self, revision_id):
588
"""Return XML file object for revision object."""
589
if not revision_id or not isinstance(revision_id, basestring):
590
raise InvalidRevisionId(revision_id)
591
592
self.lock_read()
593
try:
594
try:
595
return self.revision_store[revision_id]
596
except IndexError:
597
raise bzrlib.errors.NoSuchRevision(revision_id)
598
finally:
599
self.unlock()
600
601
602
def get_revision(self, revision_id):
603
"""Return the Revision object for a named revision"""
604
xml_file = self.get_revision_xml(revision_id)
605
606
try:
607
r = unpack_xml(Revision, xml_file)
608
except SyntaxError, e:
609
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
610
[revision_id,
611
str(e)])
612
613
assert r.revision_id == revision_id
614
return r
615
616
617
def get_revision_delta(self, revno):
618
"""Return the delta for one revision.
619
620
The delta is relative to its mainline predecessor, or the
621
empty tree for revision 1.
622
"""
623
assert isinstance(revno, int)
624
rh = self.revision_history()
625
if not (1 <= revno <= len(rh)):
626
raise InvalidRevisionNumber(revno)
627
628
# revno is 1-based; list is 0-based
629
630
new_tree = self.revision_tree(rh[revno-1])
631
if revno == 1:
632
old_tree = EmptyTree()
633
else:
634
old_tree = self.revision_tree(rh[revno-2])
635
636
return compare_trees(old_tree, new_tree)
637
638
639
640
def get_revision_sha1(self, revision_id):
641
"""Hash the stored value of a revision, and return it."""
642
# In the future, revision entries will be signed. At that
643
# point, it is probably best *not* to include the signature
644
# in the revision hash. Because that lets you re-sign
645
# the revision, (add signatures/remove signatures) and still
646
# have all hash pointers stay consistent.
647
# But for now, just hash the contents.
648
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
649
650
651
def get_inventory(self, inventory_id):
652
"""Get Inventory object by hash.
653
654
TODO: Perhaps for this and similar methods, take a revision
655
parameter which can be either an integer revno or a
656
string hash."""
657
from bzrlib.inventory import Inventory
658
from bzrlib.xml import unpack_xml
659
660
return unpack_xml(Inventory, self.inventory_store[inventory_id])
661
662
663
def get_inventory_sha1(self, inventory_id):
664
"""Return the sha1 hash of the inventory entry
665
"""
666
return sha_file(self.inventory_store[inventory_id])
667
668
669
def get_revision_inventory(self, revision_id):
670
"""Return inventory of a past revision."""
671
# bzr 0.0.6 imposes the constraint that the inventory_id
672
# must be the same as its revision, so this is trivial.
673
if revision_id == None:
674
from bzrlib.inventory import Inventory
675
return Inventory(self.get_root_id())
676
else:
677
return self.get_inventory(revision_id)
678
249
raise NotImplementedError('append_revision is abstract')
250
251
def set_revision_history(self, rev_history):
252
raise NotImplementedError('set_revision_history is abstract')
679
253
680
254
def revision_history(self):
681
"""Return sequence of revision hashes on to this branch.
682
683
>>> ScratchBranch().revision_history()
684
[]
685
"""
686
self.lock_read()
687
try:
688
return [l.rstrip('\r\n') for l in
689
self.controlfile('revision-history', 'r').readlines()]
690
finally:
691
self.unlock()
692
693
694
def common_ancestor(self, other, self_revno=None, other_revno=None):
695
"""
696
>>> import commit
697
>>> sb = ScratchBranch(files=['foo', 'foo~'])
698
>>> sb.common_ancestor(sb) == (None, None)
699
True
700
>>> commit.commit(sb, "Committing first revision", verbose=False)
701
>>> sb.common_ancestor(sb)[0]
702
1
703
>>> clone = sb.clone()
704
>>> commit.commit(sb, "Committing second revision", verbose=False)
705
>>> sb.common_ancestor(sb)[0]
706
2
707
>>> sb.common_ancestor(clone)[0]
708
1
709
>>> commit.commit(clone, "Committing divergent second revision",
710
... verbose=False)
711
>>> sb.common_ancestor(clone)[0]
712
1
713
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
714
True
715
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
716
True
717
>>> clone2 = sb.clone()
718
>>> sb.common_ancestor(clone2)[0]
719
2
720
>>> sb.common_ancestor(clone2, self_revno=1)[0]
721
1
722
>>> sb.common_ancestor(clone2, other_revno=1)[0]
723
1
724
"""
725
my_history = self.revision_history()
726
other_history = other.revision_history()
727
if self_revno is None:
728
self_revno = len(my_history)
729
if other_revno is None:
730
other_revno = len(other_history)
731
indices = range(min((self_revno, other_revno)))
732
indices.reverse()
733
for r in indices:
734
if my_history[r] == other_history[r]:
735
return r+1, my_history[r]
736
return None, None
737
255
"""Return sequence of revision hashes on to this branch."""
256
raise NotImplementedError('revision_history is abstract')
738
257
739
258
def revno(self):
740
259
"""Return current revision number for this branch.
744
263
"""
745
264
return len(self.revision_history())
746
265
266
def unbind(self):
267
"""Older format branches cannot bind or unbind."""
268
raise errors.UpgradeRequired(self.base)
747
269
748
def last_patch(self):
749
"""Return last patch hash, or None if no history.
750
"""
270
def last_revision(self):
271
"""Return last patch hash, or None if no history."""
751
272
ph = self.revision_history()
752
273
if ph:
753
274
return ph[-1]
754
275
else:
755
276
return None
756
277
757
758
278
def missing_revisions(self, other, stop_revision=None):
759
"""
279
"""Return a list of new revisions that would perfectly fit.
280
760
281
If self and other have not diverged, return a list of the revisions
761
282
present in other, but missing from self.
762
283
763
>>> from bzrlib.commit import commit
284
>>> from bzrlib.workingtree import WorkingTree
764
285
>>> bzrlib.trace.silent = True
765
>>> br1 = ScratchBranch()
766
>>> 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()
767
292
>>> br1.missing_revisions(br2)
768
293
[]
769
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
294
>>> wt2.commit("lala!", rev_id="REVISION-ID-1")
770
295
>>> br1.missing_revisions(br2)
771
296
[u'REVISION-ID-1']
772
297
>>> br2.missing_revisions(br1)
773
298
[]
774
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
299
>>> wt1.commit("lala!", rev_id="REVISION-ID-1")
775
300
>>> br1.missing_revisions(br2)
776
301
[]
777
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
302
>>> wt2.commit("lala!", rev_id="REVISION-ID-2A")
778
303
>>> br1.missing_revisions(br2)
779
304
[u'REVISION-ID-2A']
780
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
305
>>> wt1.commit("lala!", rev_id="REVISION-ID-2B")
781
306
>>> br1.missing_revisions(br2)
782
307
Traceback (most recent call last):
783
DivergedBranches: These branches have diverged.
308
DivergedBranches: These branches have diverged. Try merge.
784
309
"""
785
310
self_history = self.revision_history()
786
311
self_len = len(self_history)
793
318
794
319
if stop_revision is None:
795
320
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
798
321
else:
322
assert isinstance(stop_revision, int)
323
if stop_revision > other_len:
324
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
799
325
return other_history[self_len:stop_revision]
800
326
801
802
327
def update_revisions(self, other, stop_revision=None):
803
"""Pull in all new revisions from other branch.
804
805
>>> from bzrlib.commit import commit
806
>>> bzrlib.trace.silent = True
807
>>> br1 = ScratchBranch(files=['foo', 'bar'])
808
>>> br1.add('foo')
809
>>> br1.add('bar')
810
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
811
>>> br2 = ScratchBranch()
812
>>> br2.update_revisions(br1)
813
Added 2 texts.
814
Added 1 inventories.
815
Added 1 revisions.
816
>>> br2.revision_history()
817
[u'REVISION-ID-1']
818
>>> br2.update_revisions(br1)
819
Added 0 texts.
820
Added 0 inventories.
821
Added 0 revisions.
822
>>> br1.text_store.total_size() == br2.text_store.total_size()
823
True
824
"""
825
from bzrlib.progress import ProgressBar
826
827
pb = ProgressBar()
828
829
pb.update('comparing histories')
830
revision_ids = self.missing_revisions(other, stop_revision)
831
832
if hasattr(other.revision_store, "prefetch"):
833
other.revision_store.prefetch(revision_ids)
834
if hasattr(other.inventory_store, "prefetch"):
835
inventory_ids = [other.get_revision(r).inventory_id
836
for r in revision_ids]
837
other.inventory_store.prefetch(inventory_ids)
838
839
revisions = []
840
needed_texts = set()
841
i = 0
842
for rev_id in revision_ids:
843
i += 1
844
pb.update('fetching revision', i, len(revision_ids))
845
rev = other.get_revision(rev_id)
846
revisions.append(rev)
847
inv = other.get_inventory(str(rev.inventory_id))
848
for key, entry in inv.iter_entries():
849
if entry.text_id is None:
850
continue
851
if entry.text_id not in self.text_store:
852
needed_texts.add(entry.text_id)
853
854
pb.clear()
855
856
count = self.text_store.copy_multi(other.text_store, needed_texts)
857
print "Added %d texts." % count
858
inventory_ids = [ f.inventory_id for f in revisions ]
859
count = self.inventory_store.copy_multi(other.inventory_store,
860
inventory_ids)
861
print "Added %d inventories." % count
862
revision_ids = [ f.revision_id for f in revisions]
863
count = self.revision_store.copy_multi(other.revision_store,
864
revision_ids)
865
for revision_id in revision_ids:
866
self.append_revision(revision_id)
867
print "Added %d revisions." % count
868
869
870
def commit(self, *args, **kw):
871
from bzrlib.commit import commit
872
commit(self, *args, **kw)
873
874
875
def lookup_revision(self, revision):
876
"""Return the revision identifier for a given revision information."""
877
revno, info = self.get_revision_info(revision)
878
return info
879
880
def get_revision_info(self, revision):
881
"""Return (revno, revision id) for revision identifier.
882
883
revision can be an integer, in which case it is assumed to be revno (though
884
this will translate negative values into positive ones)
885
revision can also be a string, in which case it is parsed for something like
886
'date:' or 'revid:' etc.
887
"""
888
if revision is None:
889
return 0, None
890
revno = None
891
try:# Convert to int if possible
892
revision = int(revision)
893
except ValueError:
894
pass
895
revs = self.revision_history()
896
if isinstance(revision, int):
897
if revision == 0:
898
return 0, None
899
# Mabye we should do this first, but we don't need it if revision == 0
900
if revision < 0:
901
revno = len(revs) + revision + 1
902
else:
903
revno = revision
904
elif isinstance(revision, basestring):
905
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
906
if revision.startswith(prefix):
907
revno = func(self, revs, revision)
908
break
909
else:
910
raise BzrError('No namespace registered for string: %r' % revision)
911
912
if revno is None or revno <= 0 or revno > len(revs):
913
raise BzrError("no such revision %s" % revision)
914
return revno, revs[revno-1]
915
916
def _namespace_revno(self, revs, revision):
917
"""Lookup a revision by revision number"""
918
assert revision.startswith('revno:')
919
try:
920
return int(revision[6:])
921
except ValueError:
922
return None
923
REVISION_NAMESPACES['revno:'] = _namespace_revno
924
925
def _namespace_revid(self, revs, revision):
926
assert revision.startswith('revid:')
927
try:
928
return revs.index(revision[6:]) + 1
929
except ValueError:
930
return None
931
REVISION_NAMESPACES['revid:'] = _namespace_revid
932
933
def _namespace_last(self, revs, revision):
934
assert revision.startswith('last:')
935
try:
936
offset = int(revision[5:])
937
except ValueError:
938
return None
939
else:
940
if offset <= 0:
941
raise BzrError('You must supply a positive value for --revision last:XXX')
942
return len(revs) - offset + 1
943
REVISION_NAMESPACES['last:'] = _namespace_last
944
945
def _namespace_tag(self, revs, revision):
946
assert revision.startswith('tag:')
947
raise BzrError('tag: namespace registered, but not implemented.')
948
REVISION_NAMESPACES['tag:'] = _namespace_tag
949
950
def _namespace_date(self, revs, revision):
951
assert revision.startswith('date:')
952
import datetime
953
# Spec for date revisions:
954
# date:value
955
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
956
# it can also start with a '+/-/='. '+' says match the first
957
# entry after the given date. '-' is match the first entry before the date
958
# '=' is match the first entry after, but still on the given date.
959
#
960
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
961
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
962
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
963
# May 13th, 2005 at 0:00
964
#
965
# So the proper way of saying 'give me all entries for today' is:
966
# -r {date:+today}:{date:-tomorrow}
967
# The default is '=' when not supplied
968
val = revision[5:]
969
match_style = '='
970
if val[:1] in ('+', '-', '='):
971
match_style = val[:1]
972
val = val[1:]
973
974
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
975
if val.lower() == 'yesterday':
976
dt = today - datetime.timedelta(days=1)
977
elif val.lower() == 'today':
978
dt = today
979
elif val.lower() == 'tomorrow':
980
dt = today + datetime.timedelta(days=1)
981
else:
982
import re
983
# This should be done outside the function to avoid recompiling it.
984
_date_re = re.compile(
985
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
986
r'(,|T)?\s*'
987
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
988
)
989
m = _date_re.match(val)
990
if not m or (not m.group('date') and not m.group('time')):
991
raise BzrError('Invalid revision date %r' % revision)
992
993
if m.group('date'):
994
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
995
else:
996
year, month, day = today.year, today.month, today.day
997
if m.group('time'):
998
hour = int(m.group('hour'))
999
minute = int(m.group('minute'))
1000
if m.group('second'):
1001
second = int(m.group('second'))
1002
else:
1003
second = 0
1004
else:
1005
hour, minute, second = 0,0,0
1006
1007
dt = datetime.datetime(year=year, month=month, day=day,
1008
hour=hour, minute=minute, second=second)
1009
first = dt
1010
last = None
1011
reversed = False
1012
if match_style == '-':
1013
reversed = True
1014
elif match_style == '=':
1015
last = dt + datetime.timedelta(days=1)
1016
1017
if reversed:
1018
for i in range(len(revs)-1, -1, -1):
1019
r = self.get_revision(revs[i])
1020
# TODO: Handle timezone.
1021
dt = datetime.datetime.fromtimestamp(r.timestamp)
1022
if first >= dt and (last is None or dt >= last):
1023
return i+1
1024
else:
1025
for i in range(len(revs)):
1026
r = self.get_revision(revs[i])
1027
# TODO: Handle timezone.
1028
dt = datetime.datetime.fromtimestamp(r.timestamp)
1029
if first <= dt and (last is None or dt <= last):
1030
return i+1
1031
REVISION_NAMESPACES['date:'] = _namespace_date
1032
1033
def revision_tree(self, revision_id):
1034
"""Return Tree for a revision on this branch.
1035
1036
`revision_id` may be None for the null revision, in which case
1037
an `EmptyTree` is returned."""
1038
# TODO: refactor this to use an existing revision object
1039
# so we don't need to read it in twice.
1040
if revision_id == None:
1041
return EmptyTree()
1042
else:
1043
inv = self.get_revision_inventory(revision_id)
1044
return RevisionTree(self.text_store, inv)
1045
1046
1047
def working_tree(self):
1048
"""Return a `Tree` for the working copy."""
1049
from workingtree import WorkingTree
1050
return WorkingTree(self.base, self.read_working_inventory())
1051
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')
1052
358
1053
359
def basis_tree(self):
1054
360
"""Return `Tree` object for last revision.
1055
361
1056
362
If there are no revisions yet, return an `EmptyTree`.
1057
363
"""
1058
r = self.last_patch()
1059
if r == None:
1060
return EmptyTree()
1061
else:
1062
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1063
1064
364
return self.repository.revision_tree(self.last_revision())
1065
365
1066
366
def rename_one(self, from_rel, to_rel):
1067
367
"""Rename one file.
1068
368
1069
369
This can change the directory or the filename or both.
1070
370
"""
1071
self.lock_write()
1072
try:
1073
tree = self.working_tree()
1074
inv = tree.inventory
1075
if not tree.has_filename(from_rel):
1076
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1077
if tree.has_filename(to_rel):
1078
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1079
1080
file_id = inv.path2id(from_rel)
1081
if file_id == None:
1082
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1083
1084
if inv.path2id(to_rel):
1085
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1086
1087
to_dir, to_tail = os.path.split(to_rel)
1088
to_dir_id = inv.path2id(to_dir)
1089
if to_dir_id == None and to_dir != '':
1090
raise BzrError("can't determine destination directory id for %r" % to_dir)
1091
1092
mutter("rename_one:")
1093
mutter(" file_id {%s}" % file_id)
1094
mutter(" from_rel %r" % from_rel)
1095
mutter(" to_rel %r" % to_rel)
1096
mutter(" to_dir %r" % to_dir)
1097
mutter(" to_dir_id {%s}" % to_dir_id)
1098
1099
inv.rename(file_id, to_dir_id, to_tail)
1100
1101
print "%s => %s" % (from_rel, to_rel)
1102
1103
from_abs = self.abspath(from_rel)
1104
to_abs = self.abspath(to_rel)
1105
try:
1106
os.rename(from_abs, to_abs)
1107
except OSError, e:
1108
raise BzrError("failed to rename %r to %r: %s"
1109
% (from_abs, to_abs, e[1]),
1110
["rename rolled back"])
1111
1112
self._write_inventory(inv)
1113
finally:
1114
self.unlock()
1115
371
raise NotImplementedError('rename_one is abstract')
1116
372
1117
373
def move(self, from_paths, to_name):
1118
374
"""Rename files.
1124
380
1125
381
Note that to_name is only the last component of the new name;
1126
382
this doesn't change the directory.
1127
"""
1128
self.lock_write()
1129
try:
1130
## TODO: Option to move IDs only
1131
assert not isinstance(from_paths, basestring)
1132
tree = self.working_tree()
1133
inv = tree.inventory
1134
to_abs = self.abspath(to_name)
1135
if not isdir(to_abs):
1136
raise BzrError("destination %r is not a directory" % to_abs)
1137
if not tree.has_filename(to_name):
1138
raise BzrError("destination %r not in working directory" % to_abs)
1139
to_dir_id = inv.path2id(to_name)
1140
if to_dir_id == None and to_name != '':
1141
raise BzrError("destination %r is not a versioned directory" % to_name)
1142
to_dir_ie = inv[to_dir_id]
1143
if to_dir_ie.kind not in ('directory', 'root_directory'):
1144
raise BzrError("destination %r is not a directory" % to_abs)
1145
1146
to_idpath = inv.get_idpath(to_dir_id)
1147
1148
for f in from_paths:
1149
if not tree.has_filename(f):
1150
raise BzrError("%r does not exist in working tree" % f)
1151
f_id = inv.path2id(f)
1152
if f_id == None:
1153
raise BzrError("%r is not versioned" % f)
1154
name_tail = splitpath(f)[-1]
1155
dest_path = appendpath(to_name, name_tail)
1156
if tree.has_filename(dest_path):
1157
raise BzrError("destination %r already exists" % dest_path)
1158
if f_id in to_idpath:
1159
raise BzrError("can't move %r to a subdirectory of itself" % f)
1160
1161
# OK, so there's a race here, it's possible that someone will
1162
# create a file in this interval and then the rename might be
1163
# left half-done. But we should have caught most problems.
1164
1165
for f in from_paths:
1166
name_tail = splitpath(f)[-1]
1167
dest_path = appendpath(to_name, name_tail)
1168
print "%s => %s" % (f, dest_path)
1169
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]
1170
1063
try:
1171
os.rename(self.abspath(f), self.abspath(dest_path))
1172
except OSError, e:
1173
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1174
["rename rolled back"])
1175
1176
self._write_inventory(inv)
1177
finally:
1178
self.unlock()
1179
1180
1181
def revert(self, filenames, old_tree=None, backups=True):
1182
"""Restore selected files to the versions from a previous tree.
1183
1184
backups
1185
If true (default) backups are made of files before
1186
they're renamed.
1187
"""
1188
from bzrlib.errors import NotVersionedError, BzrError
1189
from bzrlib.atomicfile import AtomicFile
1190
from bzrlib.osutils import backup_file
1191
1192
inv = self.read_working_inventory()
1193
if old_tree is None:
1194
old_tree = self.basis_tree()
1195
old_inv = old_tree.inventory
1196
1197
nids = []
1198
for fn in filenames:
1199
file_id = inv.path2id(fn)
1200
if not file_id:
1201
raise NotVersionedError("not a versioned file", fn)
1202
if not old_inv.has_id(file_id):
1203
raise BzrError("file not present in old tree", fn, file_id)
1204
nids.append((fn, file_id))
1205
1206
# TODO: Rename back if it was previously at a different location
1207
1208
# TODO: If given a directory, restore the entire contents from
1209
# the previous version.
1210
1211
# TODO: Make a backup to a temporary file.
1212
1213
# TODO: If the file previously didn't exist, delete it?
1214
for fn, file_id in nids:
1215
backup_file(fn)
1216
1217
f = AtomicFile(fn, 'wb')
1218
try:
1219
f.write(old_tree.get_file(file_id).read())
1220
f.commit()
1221
finally:
1222
f.close()
1223
1224
1225
def pending_merges(self):
1226
"""Return a list of pending merges.
1227
1228
These are revisions that have been merged into the working
1229
directory but not yet committed.
1230
"""
1231
cfn = self.controlfilename('pending-merges')
1232
if not os.path.exists(cfn):
1233
return []
1234
p = []
1235
for l in self.controlfile('pending-merges', 'r').readlines():
1236
p.append(l.rstrip('\n'))
1237
return p
1238
1239
1240
def add_pending_merge(self, revision_id):
1241
from bzrlib.revision import validate_revision_id
1242
1243
validate_revision_id(revision_id)
1244
1245
p = self.pending_merges()
1246
if revision_id in p:
1247
return
1248
p.append(revision_id)
1249
self.set_pending_merges(p)
1250
1251
1252
def set_pending_merges(self, rev_list):
1253
from bzrlib.atomicfile import AtomicFile
1254
self.lock_write()
1255
try:
1256
f = AtomicFile(self.controlfilename('pending-merges'))
1257
try:
1258
for l in rev_list:
1259
print >>f, l
1260
f.commit()
1261
finally:
1262
f.close()
1263
finally:
1264
self.unlock()
1265
1266
1267
1268
class ScratchBranch(Branch):
1269
"""Special test class: a branch that cleans up after itself.
1270
1271
>>> b = ScratchBranch()
1272
>>> isdir(b.base)
1273
True
1274
>>> bd = b.base
1275
>>> b.destroy()
1276
>>> isdir(bd)
1277
False
1278
"""
1279
def __init__(self, files=[], dirs=[], base=None):
1280
"""Make a test branch.
1281
1282
This creates a temporary directory and runs init-tree in it.
1283
1284
If any files are listed, they are created in the working copy.
1285
"""
1286
from tempfile import mkdtemp
1287
init = False
1288
if base is None:
1289
base = mkdtemp()
1290
init = True
1291
Branch.__init__(self, base, init=init)
1292
for d in dirs:
1293
os.mkdir(self.abspath(d))
1294
1295
for f in files:
1296
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1297
1298
1299
def clone(self):
1300
"""
1301
>>> orig = ScratchBranch(files=["file1", "file2"])
1302
>>> clone = orig.clone()
1303
>>> os.path.samefile(orig.base, clone.base)
1304
False
1305
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1306
True
1307
"""
1308
from shutil import copytree
1309
from tempfile import mkdtemp
1310
base = mkdtemp()
1311
os.rmdir(base)
1312
copytree(self.base, base, symlinks=True)
1313
return ScratchBranch(base=base)
1314
1315
def __del__(self):
1316
self.destroy()
1317
1318
def destroy(self):
1319
"""Destroy the test branch, removing the scratch directory."""
1320
from shutil import rmtree
1321
try:
1322
if self.base:
1323
mutter("delete ScratchBranch %s" % self.base)
1324
rmtree(self.base)
1325
except OSError, e:
1326
# Work around for shutil.rmtree failing on Windows when
1327
# readonly files are encountered
1328
mutter("hit exception in destroying ScratchBranch: %s" % e)
1329
for root, dirs, files in os.walk(self.base, topdown=False):
1330
for name in files:
1331
os.chmod(os.path.join(root, name), 0700)
1332
rmtree(self.base)
1333
self.base = None
1334
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
1335
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
1336
1327
1337
1328
######################################################################
1338
1329
# predicates
1339
1330
1340
1331
1341
def is_control_file(filename):
1342
## FIXME: better check
1343
filename = os.path.normpath(filename)
1344
while filename != '':
1345
head, tail = os.path.split(filename)
1346
## mutter('check %r for control file' % ((head, tail), ))
1347
if tail == bzrlib.BZRDIR:
1348
return True
1349
if filename == head:
1350
break
1351
filename = head
1352
return False
1353
1354
1355
1356
def gen_file_id(name):
1357
"""Return new file id.
1358
1359
This should probably generate proper UUIDs, but for the moment we
1360
cope with just randomness because running uuidgen every time is
1361
slow."""
1362
import re
1363
from binascii import hexlify
1364
from time import time
1365
1366
# get last component
1367
idx = name.rfind('/')
1368
if idx != -1:
1369
name = name[idx+1 : ]
1370
idx = name.rfind('\\')
1371
if idx != -1:
1372
name = name[idx+1 : ]
1373
1374
# make it not a hidden file
1375
name = name.lstrip('.')
1376
1377
# remove any wierd characters; we don't escape them but rather
1378
# just pull them out
1379
name = re.sub(r'[^\w.]', '', name)
1380
1381
s = hexlify(rand_bytes(8))
1382
return '-'.join((name, compact_date(time()), s))
1383
1384
1385
def gen_root_id():
1386
"""Return a new tree-root file id."""
1387
return gen_file_id('TREE_ROOT')
1388
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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