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- Committer: Martin Pool
- Date: 2006-05-05 01:15:53 UTC
- mto: This revision was merged to the branch mainline in revision 1698.
- Revision ID: mbp@sourcefrog.net-20060505011553-76b4687a5e1d01e3
[patch] force deletion of trees containing readonly files (alexander)
- 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/configobj
- bzrlib/util/configobj/docs
- tools/doc_generate
- files removed:
- bzrlib/changeset.py
- patches
- files renamed:
- bzrlib/store.py => bzrlib/store/__init__.py
- bzrlib/weavestore.py => bzrlib/store/versioned/__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/test_parent.py => bzrlib/tests/branch_implementations/test_parent.py
- bzrlib/selftest/testdiff.py => bzrlib/tests/test_diff.py
- bzrlib/selftest/testfetch.py => bzrlib/tests/test_fetch.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
- bzrlib/selftest/teststore.py => bzrlib/tests/test_store.py
- tools/testweave.py => bzrlib/tests/test_weave.py
- bzrlib/selftest/whitebox.py => bzrlib/tests/test_whitebox.py
- bzrlib/ui.py => bzrlib/ui/__init__.py
- tools/history2weaves.py => bzrlib/upgrade.py
- bzrlib/xml.py => bzrlib/xml_serializer.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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# 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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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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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)
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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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rmtree,
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)
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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.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.inventory import Inventory
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from bzrlib.weavestore import WeaveStore
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from bzrlib.trace import mutter, note
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.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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import bzrlib.ui
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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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## TODO: Maybe include checks for common corruption of newlines, etc?
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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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# TODO: please move the revision-string syntax stuff out of the branch
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# object; it's clutter
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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. If there isn't one, raises NotBranchError.
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"""
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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 bzrlib.errors.NotBranchError('%s is not in a branch' % orig_f)
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f = head
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# XXX: move into bzrlib.errors; subclass BzrError
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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.weave_store = WeaveStore(self.controlfilename('weaves'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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def __str__(self):
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return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
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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):
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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 is_locked(self):
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raise NotImplementedError('is_locked is abstract')
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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):
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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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raise NotImplementedError('lock_read is abstract')
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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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def unlock(self):
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if not self._lock_mode:
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from errors import LockError
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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:
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self._lock.unlock()
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self._lock = None
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self._lock_mode = self._lock_count = None
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raise NotImplementedError('unlock is abstract')
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def peek_lock_mode(self):
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"""Return lock mode for the Branch: 'r', 'w' or None"""
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raise NotImplementedError(self.peek_lock_mode)
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def get_physical_lock_status(self):
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raise NotImplementedError('get_physical_lock_status is abstract')
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def abspath(self, name):
265
"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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return _relpath(self.base, path)
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def controlfilename(self, file_or_path):
275
"""Return location relative to branch."""
276
if isinstance(file_or_path, basestring):
277
file_or_path = [file_or_path]
278
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
279
280
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def controlfile(self, file_or_path, mode='r'):
282
"""Open a control file for this branch.
283
284
There are two classes of file in the control directory: text
285
and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
287
if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
290
rather should be atomically copied and replaced using atomicfile.
291
"""
292
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fn = self.controlfilename(file_or_path)
294
295
if mode == 'rb' or mode == 'wb':
296
return file(fn, mode)
297
elif mode == 'r' or mode == 'w':
298
# open in binary mode anyhow so there's no newline translation;
299
# codecs uses line buffering by default; don't want that.
300
import codecs
301
return codecs.open(fn, mode + 'b', 'utf-8',
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buffering=60000)
303
else:
304
raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
307
os.mkdir(self.controlfilename([]))
308
self.controlfile('README', 'w').write(
309
"This is a Bazaar-NG control directory.\n"
310
"Do not change any files in this directory.\n")
311
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT_5)
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for d in ('text-store', 'inventory-store', 'revision-store',
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'weaves'):
314
os.mkdir(self.controlfilename(d))
315
for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name',
317
'branch-lock',
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'pending-merges'):
319
self.controlfile(f, 'w').write('')
320
mutter('created control directory in ' + self.base)
321
322
# if we want per-tree root ids then this is the place to set
323
# them; they're not needed for now and so ommitted for
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# simplicity.
325
f = self.controlfile('inventory','w')
326
bzrlib.xml5.serializer_v5.write_inventory(Inventory(), f)
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328
329
def _check_format(self):
330
"""Check this branch format is supported.
331
332
The format level is stored, as an integer, in
333
self._branch_format for code that needs to check it later.
334
335
In the future, we might need different in-memory Branch
336
classes to support downlevel branches. But not yet.
337
"""
338
fmt = self.controlfile('branch-format', 'r').read()
339
if fmt == BZR_BRANCH_FORMAT_5:
340
self._branch_format = 5
341
else:
342
raise BzrError('sorry, branch format "%s" not supported; '
343
'use a different bzr version, '
344
'or run "bzr upgrade", '
345
'or remove the .bzr directory and "bzr init" again'
346
% fmt.rstrip('\n\r'))
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"""Return absolute filename for something in the branch
180
181
XXX: Robert Collins 20051017 what is this used for? why is it a branch
182
method and not a tree method.
183
"""
184
raise NotImplementedError('abspath is abstract')
185
186
def bind(self, other):
187
"""Bind the local branch the other branch.
188
189
:param other: The branch to bind to
190
:type other: Branch
191
"""
192
raise errors.UpgradeRequired(self.base)
193
194
@needs_write_lock
195
def fetch(self, from_branch, last_revision=None, pb=None):
196
"""Copy revisions from from_branch into this branch.
197
198
:param from_branch: Where to copy from.
199
:param last_revision: What revision to stop at (None for at the end
200
of the branch.
201
:param pb: An optional progress bar to use.
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203
Returns the copied revision count and the failed revisions in a tuple:
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(copied, failures).
205
"""
206
if self.base == from_branch.base:
207
return (0, [])
208
if pb is None:
209
nested_pb = bzrlib.ui.ui_factory.nested_progress_bar()
210
pb = nested_pb
211
else:
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nested_pb = None
213
214
from_branch.lock_read()
215
try:
216
if last_revision is None:
217
pb.update('get source history')
218
from_history = from_branch.revision_history()
219
if from_history:
220
last_revision = from_history[-1]
221
else:
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# no history in the source branch
223
last_revision = NULL_REVISION
224
return self.repository.fetch(from_branch.repository,
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revision_id=last_revision,
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pb=nested_pb)
227
finally:
228
if nested_pb is not None:
229
nested_pb.finished()
230
from_branch.unlock()
231
232
def get_bound_location(self):
233
"""Return the URL of the branch we are bound to.
234
235
Older format branches cannot bind, please be sure to use a metadir
236
branch.
237
"""
238
return None
239
240
def get_master_branch(self):
241
"""Return the branch we are bound to.
242
243
:return: Either a Branch, or None
244
"""
245
return None
347
246
348
247
def get_root_id(self):
349
248
"""Return the id of this branches root"""
350
inv = self.read_working_inventory()
351
return inv.root.file_id
352
353
def set_root_id(self, file_id):
354
inv = self.read_working_inventory()
355
orig_root_id = inv.root.file_id
356
del inv._byid[inv.root.file_id]
357
inv.root.file_id = file_id
358
inv._byid[inv.root.file_id] = inv.root
359
for fid in inv:
360
entry = inv[fid]
361
if entry.parent_id in (None, orig_root_id):
362
entry.parent_id = inv.root.file_id
363
self._write_inventory(inv)
364
365
def read_working_inventory(self):
366
"""Read the working inventory."""
367
self.lock_read()
368
try:
369
# ElementTree does its own conversion from UTF-8, so open in
370
# binary.
371
f = self.controlfile('inventory', 'rb')
372
return bzrlib.xml5.serializer_v5.read_inventory(f)
373
finally:
374
self.unlock()
375
376
377
def _write_inventory(self, inv):
378
"""Update the working inventory.
379
380
That is to say, the inventory describing changes underway, that
381
will be committed to the next revision.
382
"""
383
from bzrlib.atomicfile import AtomicFile
384
385
self.lock_write()
386
try:
387
f = AtomicFile(self.controlfilename('inventory'), 'wb')
388
try:
389
bzrlib.xml5.serializer_v5.write_inventory(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, ids=None):
404
"""Make files versioned.
405
406
Note that the command line normally calls smart_add instead,
407
which can automatically recurse.
408
409
This puts the files in the Added state, so that they will be
410
recorded by the next commit.
411
412
files
413
List of paths to add, relative to the base of the tree.
414
415
ids
416
If set, use these instead of automatically generated ids.
417
Must be the same length as the list of files, but may
418
contain None for ids that are to be autogenerated.
419
420
TODO: Perhaps have an option to add the ids even if the files do
421
not (yet) exist.
422
423
TODO: Perhaps yield the ids and paths as they're added.
424
"""
425
# TODO: Re-adding a file that is removed in the working copy
426
# should probably put it back with the previous ID.
427
if isinstance(files, basestring):
428
assert(ids is None or isinstance(ids, basestring))
429
files = [files]
430
if ids is not None:
431
ids = [ids]
432
433
if ids is None:
434
ids = [None] * len(files)
435
else:
436
assert(len(ids) == len(files))
437
438
self.lock_write()
439
try:
440
inv = self.read_working_inventory()
441
for f,file_id in zip(files, ids):
442
if is_control_file(f):
443
raise BzrError("cannot add control file %s" % quotefn(f))
444
445
fp = splitpath(f)
446
447
if len(fp) == 0:
448
raise BzrError("cannot add top-level %r" % f)
449
450
fullpath = os.path.normpath(self.abspath(f))
451
452
try:
453
kind = file_kind(fullpath)
454
except OSError:
455
# maybe something better?
456
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
457
458
if kind != 'file' and kind != 'directory':
459
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
460
461
if file_id is None:
462
file_id = gen_file_id(f)
463
inv.add_path(f, kind=kind, file_id=file_id)
464
465
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
466
467
self._write_inventory(inv)
468
finally:
469
self.unlock()
470
471
472
def print_file(self, file, revno):
249
raise NotImplementedError('get_root_id is abstract')
250
251
def print_file(self, file, revision_id):
473
252
"""Print `file` to stdout."""
474
self.lock_read()
475
try:
476
tree = self.revision_tree(self.lookup_revision(revno))
477
# use inventory as it was in that revision
478
file_id = tree.inventory.path2id(file)
479
if not file_id:
480
raise BzrError("%r is not present in revision %s" % (file, revno))
481
tree.print_file(file_id)
482
finally:
483
self.unlock()
484
485
486
def remove(self, files, verbose=False):
487
"""Mark nominated files for removal from the inventory.
488
489
This does not remove their text. This does not run on
490
491
TODO: Refuse to remove modified files unless --force is given?
492
493
TODO: Do something useful with directories.
494
495
TODO: Should this remove the text or not? Tough call; not
496
removing may be useful and the user can just use use rm, and
497
is the opposite of add. Removing it is consistent with most
498
other tools. Maybe an option.
499
"""
500
## TODO: Normalize names
501
## TODO: Remove nested loops; better scalability
502
if isinstance(files, basestring):
503
files = [files]
504
505
self.lock_write()
506
507
try:
508
tree = self.working_tree()
509
inv = tree.inventory
510
511
# do this before any modifications
512
for f in files:
513
fid = inv.path2id(f)
514
if not fid:
515
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
516
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
517
if verbose:
518
# having remove it, it must be either ignored or unknown
519
if tree.is_ignored(f):
520
new_status = 'I'
521
else:
522
new_status = '?'
523
show_status(new_status, inv[fid].kind, quotefn(f))
524
del inv[fid]
525
526
self._write_inventory(inv)
527
finally:
528
self.unlock()
529
530
531
# FIXME: this doesn't need to be a branch method
532
def set_inventory(self, new_inventory_list):
533
from bzrlib.inventory import Inventory, InventoryEntry
534
inv = Inventory(self.get_root_id())
535
for path, file_id, parent, kind in new_inventory_list:
536
name = os.path.basename(path)
537
if name == "":
538
continue
539
inv.add(InventoryEntry(file_id, name, kind, parent))
540
self._write_inventory(inv)
541
542
543
def unknowns(self):
544
"""Return all unknown files.
545
546
These are files in the working directory that are not versioned or
547
control files or ignored.
548
549
>>> b = ScratchBranch(files=['foo', 'foo~'])
550
>>> list(b.unknowns())
551
['foo']
552
>>> b.add('foo')
553
>>> list(b.unknowns())
554
[]
555
>>> b.remove('foo')
556
>>> list(b.unknowns())
557
['foo']
558
"""
559
return self.working_tree().unknowns()
560
253
raise NotImplementedError('print_file is abstract')
561
254
562
255
def append_revision(self, *revision_ids):
563
from bzrlib.atomicfile import AtomicFile
564
565
for revision_id in revision_ids:
566
mutter("add {%s} to revision-history" % revision_id)
567
568
rev_history = self.revision_history()
569
rev_history.extend(revision_ids)
570
571
f = AtomicFile(self.controlfilename('revision-history'))
572
try:
573
for rev_id in rev_history:
574
print >>f, rev_id
575
f.commit()
576
finally:
577
f.close()
578
579
580
def get_revision_xml_file(self, revision_id):
581
"""Return XML file object for revision object."""
582
if not revision_id or not isinstance(revision_id, basestring):
583
raise InvalidRevisionId(revision_id)
584
585
self.lock_read()
586
try:
587
try:
588
return self.revision_store[revision_id]
589
except IndexError:
590
raise bzrlib.errors.NoSuchRevision(self, revision_id)
591
finally:
592
self.unlock()
593
594
595
#deprecated
596
get_revision_xml = get_revision_xml_file
597
598
599
def get_revision(self, revision_id):
600
"""Return the Revision object for a named revision"""
601
xml_file = self.get_revision_xml_file(revision_id)
602
603
try:
604
r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
605
except SyntaxError, e:
606
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
607
[revision_id,
608
str(e)])
609
610
assert r.revision_id == revision_id
611
return r
612
613
614
def get_revision_delta(self, revno):
615
"""Return the delta for one revision.
616
617
The delta is relative to its mainline predecessor, or the
618
empty tree for revision 1.
619
"""
620
assert isinstance(revno, int)
621
rh = self.revision_history()
622
if not (1 <= revno <= len(rh)):
623
raise InvalidRevisionNumber(revno)
624
625
# revno is 1-based; list is 0-based
626
627
new_tree = self.revision_tree(rh[revno-1])
628
if revno == 1:
629
old_tree = EmptyTree()
630
else:
631
old_tree = self.revision_tree(rh[revno-2])
632
633
return compare_trees(old_tree, new_tree)
634
635
636
637
def get_revision_sha1(self, revision_id):
638
"""Hash the stored value of a revision, and return it."""
639
# In the future, revision entries will be signed. At that
640
# point, it is probably best *not* to include the signature
641
# in the revision hash. Because that lets you re-sign
642
# the revision, (add signatures/remove signatures) and still
643
# have all hash pointers stay consistent.
644
# But for now, just hash the contents.
645
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
646
647
648
def get_inventory(self, revision_id):
649
"""Get Inventory object by hash.
650
651
TODO: Perhaps for this and similar methods, take a revision
652
parameter which can be either an integer revno or a
653
string hash."""
654
f = self.get_inventory_xml_file(revision_id)
655
return bzrlib.xml5.serializer_v5.read_inventory(f)
656
657
658
def get_inventory_xml(self, revision_id):
659
"""Get inventory XML as a file object."""
660
try:
661
assert isinstance(revision_id, basestring), type(revision_id)
662
return self.inventory_store[revision_id]
663
except IndexError:
664
raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
665
666
get_inventory_xml_file = get_inventory_xml
667
668
669
def get_inventory_sha1(self, revision_id):
670
"""Return the sha1 hash of the inventory entry
671
"""
672
return sha_file(self.get_inventory_xml_file(revision_id))
673
674
675
def get_revision_inventory(self, revision_id):
676
"""Return inventory of a past revision."""
677
# bzr 0.0.6 imposes the constraint that the inventory_id
678
# must be the same as its revision, so this is trivial.
679
if revision_id == None:
680
return Inventory(self.get_root_id())
681
else:
682
return self.get_inventory(revision_id)
683
256
raise NotImplementedError('append_revision is abstract')
257
258
def set_revision_history(self, rev_history):
259
raise NotImplementedError('set_revision_history is abstract')
684
260
685
261
def revision_history(self):
686
"""Return sequence of revision hashes on to this branch.
687
688
>>> ScratchBranch().revision_history()
689
[]
690
"""
691
self.lock_read()
692
try:
693
return [l.rstrip('\r\n') for l in
694
self.controlfile('revision-history', 'r').readlines()]
695
finally:
696
self.unlock()
697
698
699
def common_ancestor(self, other, self_revno=None, other_revno=None):
700
"""
701
>>> import commit
702
>>> sb = ScratchBranch(files=['foo', 'foo~'])
703
>>> sb.common_ancestor(sb) == (None, None)
704
True
705
>>> commit.commit(sb, "Committing first revision", verbose=False)
706
>>> sb.common_ancestor(sb)[0]
707
1
708
>>> clone = sb.clone()
709
>>> commit.commit(sb, "Committing second revision", verbose=False)
710
>>> sb.common_ancestor(sb)[0]
711
2
712
>>> sb.common_ancestor(clone)[0]
713
1
714
>>> commit.commit(clone, "Committing divergent second revision",
715
... verbose=False)
716
>>> sb.common_ancestor(clone)[0]
717
1
718
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
719
True
720
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
721
True
722
>>> clone2 = sb.clone()
723
>>> sb.common_ancestor(clone2)[0]
724
2
725
>>> sb.common_ancestor(clone2, self_revno=1)[0]
726
1
727
>>> sb.common_ancestor(clone2, other_revno=1)[0]
728
1
729
"""
730
my_history = self.revision_history()
731
other_history = other.revision_history()
732
if self_revno is None:
733
self_revno = len(my_history)
734
if other_revno is None:
735
other_revno = len(other_history)
736
indices = range(min((self_revno, other_revno)))
737
indices.reverse()
738
for r in indices:
739
if my_history[r] == other_history[r]:
740
return r+1, my_history[r]
741
return None, None
742
262
"""Return sequence of revision hashes on to this branch."""
263
raise NotImplementedError('revision_history is abstract')
743
264
744
265
def revno(self):
745
266
"""Return current revision number for this branch.
749
270
"""
750
271
return len(self.revision_history())
751
272
273
def unbind(self):
274
"""Older format branches cannot bind or unbind."""
275
raise errors.UpgradeRequired(self.base)
752
276
753
def last_patch(self):
754
"""Return last patch hash, or None if no history.
755
"""
277
def last_revision(self):
278
"""Return last patch hash, or None if no history."""
756
279
ph = self.revision_history()
757
280
if ph:
758
281
return ph[-1]
759
282
else:
760
283
return None
761
284
762
763
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
764
"""
285
def missing_revisions(self, other, stop_revision=None):
286
"""Return a list of new revisions that would perfectly fit.
287
765
288
If self and other have not diverged, return a list of the revisions
766
289
present in other, but missing from self.
767
290
768
>>> from bzrlib.commit import commit
291
>>> from bzrlib.workingtree import WorkingTree
769
292
>>> bzrlib.trace.silent = True
770
>>> br1 = ScratchBranch()
771
>>> br2 = ScratchBranch()
293
>>> d1 = bzrdir.ScratchDir()
294
>>> br1 = d1.open_branch()
295
>>> wt1 = d1.open_workingtree()
296
>>> d2 = bzrdir.ScratchDir()
297
>>> br2 = d2.open_branch()
298
>>> wt2 = d2.open_workingtree()
772
299
>>> br1.missing_revisions(br2)
773
300
[]
774
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
301
>>> wt2.commit("lala!", rev_id="REVISION-ID-1")
775
302
>>> br1.missing_revisions(br2)
776
303
[u'REVISION-ID-1']
777
304
>>> br2.missing_revisions(br1)
778
305
[]
779
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
306
>>> wt1.commit("lala!", rev_id="REVISION-ID-1")
780
307
>>> br1.missing_revisions(br2)
781
308
[]
782
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
309
>>> wt2.commit("lala!", rev_id="REVISION-ID-2A")
783
310
>>> br1.missing_revisions(br2)
784
311
[u'REVISION-ID-2A']
785
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
312
>>> wt1.commit("lala!", rev_id="REVISION-ID-2B")
786
313
>>> br1.missing_revisions(br2)
787
314
Traceback (most recent call last):
788
DivergedBranches: These branches have diverged.
315
DivergedBranches: These branches have diverged. Try merge.
789
316
"""
790
317
self_history = self.revision_history()
791
318
self_len = len(self_history)
798
325
799
326
if stop_revision is None:
800
327
stop_revision = other_len
801
elif stop_revision > other_len:
802
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
803
328
else:
329
assert isinstance(stop_revision, int)
330
if stop_revision > other_len:
331
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
804
332
return other_history[self_len:stop_revision]
805
333
806
807
334
def update_revisions(self, other, stop_revision=None):
808
"""Pull in all new revisions from other branch.
335
"""Pull in new perfect-fit revisions.
336
337
:param other: Another Branch to pull from
338
:param stop_revision: Updated until the given revision
339
:return: None
809
340
"""
810
from bzrlib.fetch import greedy_fetch
811
812
pb = bzrlib.ui.ui_factory.progress_bar()
813
pb.update('comparing histories')
814
815
revision_ids = self.missing_revisions(other, stop_revision)
816
817
if len(revision_ids) > 0:
818
count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
819
else:
820
count = 0
821
self.append_revision(*revision_ids)
822
## note("Added %d revisions." % count)
823
pb.clear()
824
825
def install_revisions(self, other, revision_ids, pb):
826
if hasattr(other.revision_store, "prefetch"):
827
other.revision_store.prefetch(revision_ids)
828
if hasattr(other.inventory_store, "prefetch"):
829
inventory_ids = [other.get_revision(r).inventory_id
830
for r in revision_ids]
831
other.inventory_store.prefetch(inventory_ids)
832
833
if pb is None:
834
pb = bzrlib.ui.ui_factory.progress_bar()
835
836
revisions = []
837
needed_texts = set()
838
i = 0
839
840
failures = set()
841
for i, rev_id in enumerate(revision_ids):
842
pb.update('fetching revision', i+1, len(revision_ids))
843
try:
844
rev = other.get_revision(rev_id)
845
except bzrlib.errors.NoSuchRevision:
846
failures.add(rev_id)
847
continue
848
849
revisions.append(rev)
850
inv = other.get_inventory(str(rev.inventory_id))
851
for key, entry in inv.iter_entries():
852
if entry.text_id is None:
853
continue
854
if entry.text_id not in self.text_store:
855
needed_texts.add(entry.text_id)
856
857
pb.clear()
858
859
count, cp_fail = self.text_store.copy_multi(other.text_store,
860
needed_texts)
861
#print "Added %d texts." % count
862
inventory_ids = [ f.inventory_id for f in revisions ]
863
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
864
inventory_ids)
865
#print "Added %d inventories." % count
866
revision_ids = [ f.revision_id for f in revisions]
867
868
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
869
revision_ids,
870
permit_failure=True)
871
assert len(cp_fail) == 0
872
return count, failures
873
874
875
def commit(self, *args, **kw):
876
from bzrlib.commit import Commit
877
Commit().commit(self, *args, **kw)
878
879
880
def lookup_revision(self, revision):
881
"""Return the revision identifier for a given revision information."""
882
revno, info = self._get_revision_info(revision)
883
return info
884
341
raise NotImplementedError('update_revisions is abstract')
885
342
886
343
def revision_id_to_revno(self, revision_id):
887
344
"""Given a revision id, return its revno"""
345
if revision_id is None:
346
return 0
888
347
history = self.revision_history()
889
348
try:
890
349
return history.index(revision_id) + 1
891
350
except ValueError:
892
351
raise bzrlib.errors.NoSuchRevision(self, revision_id)
893
352
894
895
def get_revision_info(self, revision):
896
"""Return (revno, revision id) for revision identifier.
897
898
revision can be an integer, in which case it is assumed to be revno (though
899
this will translate negative values into positive ones)
900
revision can also be a string, in which case it is parsed for something like
901
'date:' or 'revid:' etc.
902
"""
903
revno, rev_id = self._get_revision_info(revision)
904
if revno is None:
905
raise bzrlib.errors.NoSuchRevision(self, revision)
906
return revno, rev_id
907
908
353
def get_rev_id(self, revno, history=None):
909
354
"""Find the revision id of the specified revno."""
910
355
if revno == 0:
915
360
raise bzrlib.errors.NoSuchRevision(self, revno)
916
361
return history[revno - 1]
917
362
918
def _get_revision_info(self, revision):
919
"""Return (revno, revision id) for revision specifier.
920
921
revision can be an integer, in which case it is assumed to be revno
922
(though this will translate negative values into positive ones)
923
revision can also be a string, in which case it is parsed for something
924
like 'date:' or 'revid:' etc.
925
926
A revid is always returned. If it is None, the specifier referred to
927
the null revision. If the revid does not occur in the revision
928
history, revno will be None.
929
"""
930
931
if revision is None:
932
return 0, None
933
revno = None
934
try:# Convert to int if possible
935
revision = int(revision)
936
except ValueError:
937
pass
938
revs = self.revision_history()
939
if isinstance(revision, int):
940
if revision < 0:
941
revno = len(revs) + revision + 1
942
else:
943
revno = revision
944
rev_id = self.get_rev_id(revno, revs)
945
elif isinstance(revision, basestring):
946
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
947
if revision.startswith(prefix):
948
result = func(self, revs, revision)
949
if len(result) > 1:
950
revno, rev_id = result
951
else:
952
revno = result[0]
953
rev_id = self.get_rev_id(revno, revs)
954
break
955
else:
956
raise BzrError('No namespace registered for string: %r' %
957
revision)
958
else:
959
raise TypeError('Unhandled revision type %s' % revision)
960
961
if revno is None:
962
if rev_id is None:
963
raise bzrlib.errors.NoSuchRevision(self, revision)
964
return revno, rev_id
965
966
def _namespace_revno(self, revs, revision):
967
"""Lookup a revision by revision number"""
968
assert revision.startswith('revno:')
969
try:
970
return (int(revision[6:]),)
971
except ValueError:
972
return None
973
REVISION_NAMESPACES['revno:'] = _namespace_revno
974
975
def _namespace_revid(self, revs, revision):
976
assert revision.startswith('revid:')
977
rev_id = revision[len('revid:'):]
978
try:
979
return revs.index(rev_id) + 1, rev_id
980
except ValueError:
981
return None, rev_id
982
REVISION_NAMESPACES['revid:'] = _namespace_revid
983
984
def _namespace_last(self, revs, revision):
985
assert revision.startswith('last:')
986
try:
987
offset = int(revision[5:])
988
except ValueError:
989
return (None,)
990
else:
991
if offset <= 0:
992
raise BzrError('You must supply a positive value for --revision last:XXX')
993
return (len(revs) - offset + 1,)
994
REVISION_NAMESPACES['last:'] = _namespace_last
995
996
def _namespace_tag(self, revs, revision):
997
assert revision.startswith('tag:')
998
raise BzrError('tag: namespace registered, but not implemented.')
999
REVISION_NAMESPACES['tag:'] = _namespace_tag
1000
1001
def _namespace_date(self, revs, revision):
1002
assert revision.startswith('date:')
1003
import datetime
1004
# Spec for date revisions:
1005
# date:value
1006
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1007
# it can also start with a '+/-/='. '+' says match the first
1008
# entry after the given date. '-' is match the first entry before the date
1009
# '=' is match the first entry after, but still on the given date.
1010
#
1011
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1012
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1013
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1014
# May 13th, 2005 at 0:00
1015
#
1016
# So the proper way of saying 'give me all entries for today' is:
1017
# -r {date:+today}:{date:-tomorrow}
1018
# The default is '=' when not supplied
1019
val = revision[5:]
1020
match_style = '='
1021
if val[:1] in ('+', '-', '='):
1022
match_style = val[:1]
1023
val = val[1:]
1024
1025
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1026
if val.lower() == 'yesterday':
1027
dt = today - datetime.timedelta(days=1)
1028
elif val.lower() == 'today':
1029
dt = today
1030
elif val.lower() == 'tomorrow':
1031
dt = today + datetime.timedelta(days=1)
1032
else:
1033
import re
1034
# This should be done outside the function to avoid recompiling it.
1035
_date_re = re.compile(
1036
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1037
r'(,|T)?\s*'
1038
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1039
)
1040
m = _date_re.match(val)
1041
if not m or (not m.group('date') and not m.group('time')):
1042
raise BzrError('Invalid revision date %r' % revision)
1043
1044
if m.group('date'):
1045
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1046
else:
1047
year, month, day = today.year, today.month, today.day
1048
if m.group('time'):
1049
hour = int(m.group('hour'))
1050
minute = int(m.group('minute'))
1051
if m.group('second'):
1052
second = int(m.group('second'))
1053
else:
1054
second = 0
1055
else:
1056
hour, minute, second = 0,0,0
1057
1058
dt = datetime.datetime(year=year, month=month, day=day,
1059
hour=hour, minute=minute, second=second)
1060
first = dt
1061
last = None
1062
reversed = False
1063
if match_style == '-':
1064
reversed = True
1065
elif match_style == '=':
1066
last = dt + datetime.timedelta(days=1)
1067
1068
if reversed:
1069
for i in range(len(revs)-1, -1, -1):
1070
r = self.get_revision(revs[i])
1071
# TODO: Handle timezone.
1072
dt = datetime.datetime.fromtimestamp(r.timestamp)
1073
if first >= dt and (last is None or dt >= last):
1074
return (i+1,)
1075
else:
1076
for i in range(len(revs)):
1077
r = self.get_revision(revs[i])
1078
# TODO: Handle timezone.
1079
dt = datetime.datetime.fromtimestamp(r.timestamp)
1080
if first <= dt and (last is None or dt <= last):
1081
return (i+1,)
1082
REVISION_NAMESPACES['date:'] = _namespace_date
1083
1084
def revision_tree(self, revision_id):
1085
"""Return Tree for a revision on this branch.
1086
1087
`revision_id` may be None for the null revision, in which case
1088
an `EmptyTree` is returned."""
1089
# TODO: refactor this to use an existing revision object
1090
# so we don't need to read it in twice.
1091
if revision_id == None:
1092
return EmptyTree()
1093
else:
1094
inv = self.get_revision_inventory(revision_id)
1095
return RevisionTree(self.weave_store, inv, revision_id)
1096
1097
1098
def working_tree(self):
1099
"""Return a `Tree` for the working copy."""
1100
from workingtree import WorkingTree
1101
return WorkingTree(self.base, self.read_working_inventory())
1102
363
def pull(self, source, overwrite=False, stop_revision=None):
364
raise NotImplementedError('pull is abstract')
1103
365
1104
366
def basis_tree(self):
1105
367
"""Return `Tree` object for last revision.
1106
368
1107
369
If there are no revisions yet, return an `EmptyTree`.
1108
370
"""
1109
return self.revision_tree(self.last_patch())
1110
371
return self.repository.revision_tree(self.last_revision())
1111
372
1112
373
def rename_one(self, from_rel, to_rel):
1113
374
"""Rename one file.
1114
375
1115
376
This can change the directory or the filename or both.
1116
377
"""
1117
self.lock_write()
1118
try:
1119
tree = self.working_tree()
1120
inv = tree.inventory
1121
if not tree.has_filename(from_rel):
1122
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1123
if tree.has_filename(to_rel):
1124
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1125
1126
file_id = inv.path2id(from_rel)
1127
if file_id == None:
1128
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1129
1130
if inv.path2id(to_rel):
1131
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1132
1133
to_dir, to_tail = os.path.split(to_rel)
1134
to_dir_id = inv.path2id(to_dir)
1135
if to_dir_id == None and to_dir != '':
1136
raise BzrError("can't determine destination directory id for %r" % to_dir)
1137
1138
mutter("rename_one:")
1139
mutter(" file_id {%s}" % file_id)
1140
mutter(" from_rel %r" % from_rel)
1141
mutter(" to_rel %r" % to_rel)
1142
mutter(" to_dir %r" % to_dir)
1143
mutter(" to_dir_id {%s}" % to_dir_id)
1144
1145
inv.rename(file_id, to_dir_id, to_tail)
1146
1147
from_abs = self.abspath(from_rel)
1148
to_abs = self.abspath(to_rel)
1149
try:
1150
os.rename(from_abs, to_abs)
1151
except OSError, e:
1152
raise BzrError("failed to rename %r to %r: %s"
1153
% (from_abs, to_abs, e[1]),
1154
["rename rolled back"])
1155
1156
self._write_inventory(inv)
1157
finally:
1158
self.unlock()
1159
378
raise NotImplementedError('rename_one is abstract')
1160
379
1161
380
def move(self, from_paths, to_name):
1162
381
"""Rename files.
1172
391
This returns a list of (from_path, to_path) pairs for each
1173
392
entry that is moved.
1174
393
"""
1175
result = []
1176
self.lock_write()
1177
try:
1178
## TODO: Option to move IDs only
1179
assert not isinstance(from_paths, basestring)
1180
tree = self.working_tree()
1181
inv = tree.inventory
1182
to_abs = self.abspath(to_name)
1183
if not isdir(to_abs):
1184
raise BzrError("destination %r is not a directory" % to_abs)
1185
if not tree.has_filename(to_name):
1186
raise BzrError("destination %r not in working directory" % to_abs)
1187
to_dir_id = inv.path2id(to_name)
1188
if to_dir_id == None and to_name != '':
1189
raise BzrError("destination %r is not a versioned directory" % to_name)
1190
to_dir_ie = inv[to_dir_id]
1191
if to_dir_ie.kind not in ('directory', 'root_directory'):
1192
raise BzrError("destination %r is not a directory" % to_abs)
1193
1194
to_idpath = inv.get_idpath(to_dir_id)
1195
1196
for f in from_paths:
1197
if not tree.has_filename(f):
1198
raise BzrError("%r does not exist in working tree" % f)
1199
f_id = inv.path2id(f)
1200
if f_id == None:
1201
raise BzrError("%r is not versioned" % f)
1202
name_tail = splitpath(f)[-1]
1203
dest_path = appendpath(to_name, name_tail)
1204
if tree.has_filename(dest_path):
1205
raise BzrError("destination %r already exists" % dest_path)
1206
if f_id in to_idpath:
1207
raise BzrError("can't move %r to a subdirectory of itself" % f)
1208
1209
# OK, so there's a race here, it's possible that someone will
1210
# create a file in this interval and then the rename might be
1211
# left half-done. But we should have caught most problems.
1212
1213
for f in from_paths:
1214
name_tail = splitpath(f)[-1]
1215
dest_path = appendpath(to_name, name_tail)
1216
result.append((f, dest_path))
1217
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1218
try:
1219
os.rename(self.abspath(f), self.abspath(dest_path))
1220
except OSError, e:
1221
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1222
["rename rolled back"])
1223
1224
self._write_inventory(inv)
1225
finally:
1226
self.unlock()
1227
1228
return result
1229
1230
1231
def revert(self, filenames, old_tree=None, backups=True):
1232
"""Restore selected files to the versions from a previous tree.
1233
1234
backups
1235
If true (default) backups are made of files before
1236
they're renamed.
1237
"""
1238
from bzrlib.errors import NotVersionedError, BzrError
1239
from bzrlib.atomicfile import AtomicFile
1240
from bzrlib.osutils import backup_file
1241
1242
inv = self.read_working_inventory()
1243
if old_tree is None:
1244
old_tree = self.basis_tree()
1245
old_inv = old_tree.inventory
1246
1247
nids = []
1248
for fn in filenames:
1249
file_id = inv.path2id(fn)
1250
if not file_id:
1251
raise NotVersionedError("not a versioned file", fn)
1252
if not old_inv.has_id(file_id):
1253
raise BzrError("file not present in old tree", fn, file_id)
1254
nids.append((fn, file_id))
1255
1256
# TODO: Rename back if it was previously at a different location
1257
1258
# TODO: If given a directory, restore the entire contents from
1259
# the previous version.
1260
1261
# TODO: Make a backup to a temporary file.
1262
1263
# TODO: If the file previously didn't exist, delete it?
1264
for fn, file_id in nids:
1265
backup_file(fn)
1266
1267
f = AtomicFile(fn, 'wb')
1268
try:
1269
f.write(old_tree.get_file(file_id).read())
1270
f.commit()
1271
finally:
1272
f.close()
1273
1274
1275
def pending_merges(self):
1276
"""Return a list of pending merges.
1277
1278
These are revisions that have been merged into the working
1279
directory but not yet committed.
1280
"""
1281
cfn = self.controlfilename('pending-merges')
1282
if not os.path.exists(cfn):
1283
return []
1284
p = []
1285
for l in self.controlfile('pending-merges', 'r').readlines():
1286
p.append(l.rstrip('\n'))
1287
return p
1288
1289
1290
def add_pending_merge(self, revision_id):
1291
from bzrlib.revision import validate_revision_id
1292
1293
validate_revision_id(revision_id)
1294
1295
p = self.pending_merges()
1296
if revision_id in p:
1297
return
1298
p.append(revision_id)
1299
self.set_pending_merges(p)
1300
1301
1302
def set_pending_merges(self, rev_list):
1303
from bzrlib.atomicfile import AtomicFile
1304
self.lock_write()
1305
try:
1306
f = AtomicFile(self.controlfilename('pending-merges'))
1307
try:
1308
for l in rev_list:
1309
print >>f, l
1310
f.commit()
1311
finally:
1312
f.close()
1313
finally:
1314
self.unlock()
1315
394
raise NotImplementedError('move is abstract')
1316
395
1317
396
def get_parent(self):
1318
397
"""Return the parent location of the branch.
1321
400
pattern is that the user can override it by specifying a
1322
401
location.
1323
402
"""
1324
import errno
1325
_locs = ['parent', 'pull', 'x-pull']
1326
for l in _locs:
1327
try:
1328
return self.controlfile(l, 'r').read().strip('\n')
1329
except IOError, e:
1330
if e.errno != errno.ENOENT:
1331
raise
403
raise NotImplementedError('get_parent is abstract')
404
405
def get_push_location(self):
406
"""Return the None or the location to push this branch to."""
407
raise NotImplementedError('get_push_location is abstract')
408
409
def set_push_location(self, location):
410
"""Set a new push location for this branch."""
411
raise NotImplementedError('set_push_location is abstract')
412
413
def set_parent(self, url):
414
raise NotImplementedError('set_parent is abstract')
415
416
@needs_write_lock
417
def update(self):
418
"""Synchronise this branch with the master branch if any.
419
420
:return: None or the last_revision pivoted out during the update.
421
"""
1332
422
return None
1333
423
1334
1335
def set_parent(self, url):
1336
# TODO: Maybe delete old location files?
1337
from bzrlib.atomicfile import AtomicFile
1338
self.lock_write()
1339
try:
1340
f = AtomicFile(self.controlfilename('parent'))
1341
try:
1342
f.write(url + '\n')
1343
f.commit()
1344
finally:
1345
f.close()
1346
finally:
1347
self.unlock()
1348
1349
424
def check_revno(self, revno):
1350
425
"""\
1351
426
Check whether a revno corresponds to any revision.
1361
436
"""
1362
437
if revno < 1 or revno > self.revno():
1363
438
raise InvalidRevisionNumber(revno)
1364
1365
1366
1367
1368
class ScratchBranch(Branch):
1369
"""Special test class: a branch that cleans up after itself.
1370
1371
>>> b = ScratchBranch()
1372
>>> isdir(b.base)
1373
True
1374
>>> bd = b.base
1375
>>> b.destroy()
1376
>>> isdir(bd)
1377
False
1378
"""
1379
def __init__(self, files=[], dirs=[], base=None):
1380
"""Make a test branch.
1381
1382
This creates a temporary directory and runs init-tree in it.
1383
1384
If any files are listed, they are created in the working copy.
1385
"""
1386
from tempfile import mkdtemp
1387
init = False
1388
if base is None:
1389
base = mkdtemp()
1390
init = True
1391
Branch.__init__(self, base, init=init)
1392
for d in dirs:
1393
os.mkdir(self.abspath(d))
1394
1395
for f in files:
1396
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1397
1398
1399
def clone(self):
1400
"""
1401
>>> orig = ScratchBranch(files=["file1", "file2"])
1402
>>> clone = orig.clone()
1403
>>> os.path.samefile(orig.base, clone.base)
1404
False
1405
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1406
True
1407
"""
1408
from shutil import copytree
1409
from tempfile import mkdtemp
1410
base = mkdtemp()
1411
os.rmdir(base)
1412
copytree(self.base, base, symlinks=True)
1413
return ScratchBranch(base=base)
1414
1415
1416
439
440
@needs_read_lock
441
def clone(self, *args, **kwargs):
442
"""Clone this branch into to_bzrdir preserving all semantic values.
443
444
revision_id: if not None, the revision history in the new branch will
445
be truncated to end with revision_id.
446
"""
447
# for API compatability, until 0.8 releases we provide the old api:
448
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
449
# after 0.8 releases, the *args and **kwargs should be changed:
450
# def clone(self, to_bzrdir, revision_id=None):
451
if (kwargs.get('to_location', None) or
452
kwargs.get('revision', None) or
453
kwargs.get('basis_branch', None) or
454
(len(args) and isinstance(args[0], basestring))):
455
# backwards compatability api:
456
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
457
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
458
# get basis_branch
459
if len(args) > 2:
460
basis_branch = args[2]
461
else:
462
basis_branch = kwargs.get('basis_branch', None)
463
if basis_branch:
464
basis = basis_branch.bzrdir
465
else:
466
basis = None
467
# get revision
468
if len(args) > 1:
469
revision_id = args[1]
470
else:
471
revision_id = kwargs.get('revision', None)
472
# get location
473
if len(args):
474
url = args[0]
475
else:
476
# no default to raise if not provided.
477
url = kwargs.get('to_location')
478
return self.bzrdir.clone(url,
479
revision_id=revision_id,
480
basis=basis).open_branch()
481
# new cleaner api.
482
# generate args by hand
483
if len(args) > 1:
484
revision_id = args[1]
485
else:
486
revision_id = kwargs.get('revision_id', None)
487
if len(args):
488
to_bzrdir = args[0]
489
else:
490
# no default to raise if not provided.
491
to_bzrdir = kwargs.get('to_bzrdir')
492
result = self._format.initialize(to_bzrdir)
493
self.copy_content_into(result, revision_id=revision_id)
494
return result
495
496
@needs_read_lock
497
def sprout(self, to_bzrdir, revision_id=None):
498
"""Create a new line of development from the branch, into to_bzrdir.
499
500
revision_id: if not None, the revision history in the new branch will
501
be truncated to end with revision_id.
502
"""
503
result = self._format.initialize(to_bzrdir)
504
self.copy_content_into(result, revision_id=revision_id)
505
result.set_parent(self.bzrdir.root_transport.base)
506
return result
507
508
@needs_read_lock
509
def copy_content_into(self, destination, revision_id=None):
510
"""Copy the content of self into destination.
511
512
revision_id: if not None, the revision history in the new branch will
513
be truncated to end with revision_id.
514
"""
515
new_history = self.revision_history()
516
if revision_id is not None:
517
try:
518
new_history = new_history[:new_history.index(revision_id) + 1]
519
except ValueError:
520
rev = self.repository.get_revision(revision_id)
521
new_history = rev.get_history(self.repository)[1:]
522
destination.set_revision_history(new_history)
523
parent = self.get_parent()
524
if parent:
525
destination.set_parent(parent)
526
527
528
class BranchFormat(object):
529
"""An encapsulation of the initialization and open routines for a format.
530
531
Formats provide three things:
532
* An initialization routine,
533
* a format string,
534
* an open routine.
535
536
Formats are placed in an dict by their format string for reference
537
during branch opening. Its not required that these be instances, they
538
can be classes themselves with class methods - it simply depends on
539
whether state is needed for a given format or not.
540
541
Once a format is deprecated, just deprecate the initialize and open
542
methods on the format class. Do not deprecate the object, as the
543
object will be created every time regardless.
544
"""
545
546
_default_format = None
547
"""The default format used for new branches."""
548
549
_formats = {}
550
"""The known formats."""
551
552
@classmethod
553
def find_format(klass, a_bzrdir):
554
"""Return the format for the branch object in a_bzrdir."""
555
try:
556
transport = a_bzrdir.get_branch_transport(None)
557
format_string = transport.get("format").read()
558
return klass._formats[format_string]
559
except NoSuchFile:
560
raise NotBranchError(path=transport.base)
561
except KeyError:
562
raise errors.UnknownFormatError(format_string)
563
564
@classmethod
565
def get_default_format(klass):
566
"""Return the current default format."""
567
return klass._default_format
568
569
def get_format_string(self):
570
"""Return the ASCII format string that identifies this format."""
571
raise NotImplementedError(self.get_format_string)
572
573
def get_format_description(self):
574
"""Return the short format description for this format."""
575
raise NotImplementedError(self.get_format_string)
576
577
def initialize(self, a_bzrdir):
578
"""Create a branch of this format in a_bzrdir."""
579
raise NotImplementedError(self.initialized)
580
581
def is_supported(self):
582
"""Is this format supported?
583
584
Supported formats can be initialized and opened.
585
Unsupported formats may not support initialization or committing or
586
some other features depending on the reason for not being supported.
587
"""
588
return True
589
590
def open(self, a_bzrdir, _found=False):
591
"""Return the branch object for a_bzrdir
592
593
_found is a private parameter, do not use it. It is used to indicate
594
if format probing has already be done.
595
"""
596
raise NotImplementedError(self.open)
597
598
@classmethod
599
def register_format(klass, format):
600
klass._formats[format.get_format_string()] = format
601
602
@classmethod
603
def set_default_format(klass, format):
604
klass._default_format = format
605
606
@classmethod
607
def unregister_format(klass, format):
608
assert klass._formats[format.get_format_string()] is format
609
del klass._formats[format.get_format_string()]
610
611
def __str__(self):
612
return self.get_format_string().rstrip()
613
614
615
class BzrBranchFormat4(BranchFormat):
616
"""Bzr branch format 4.
617
618
This format has:
619
- a revision-history file.
620
- a branch-lock lock file [ to be shared with the bzrdir ]
621
"""
622
623
def get_format_description(self):
624
"""See BranchFormat.get_format_description()."""
625
return "Branch format 4"
626
627
def initialize(self, a_bzrdir):
628
"""Create a branch of this format in a_bzrdir."""
629
mutter('creating branch in %s', a_bzrdir.transport.base)
630
branch_transport = a_bzrdir.get_branch_transport(self)
631
utf8_files = [('revision-history', ''),
632
('branch-name', ''),
633
]
634
control_files = LockableFiles(branch_transport, 'branch-lock',
635
TransportLock)
636
control_files.create_lock()
637
control_files.lock_write()
638
try:
639
for file, content in utf8_files:
640
control_files.put_utf8(file, content)
641
finally:
642
control_files.unlock()
643
return self.open(a_bzrdir, _found=True)
644
645
def __init__(self):
646
super(BzrBranchFormat4, self).__init__()
647
self._matchingbzrdir = bzrdir.BzrDirFormat6()
648
649
def open(self, a_bzrdir, _found=False):
650
"""Return the branch object for a_bzrdir
651
652
_found is a private parameter, do not use it. It is used to indicate
653
if format probing has already be done.
654
"""
655
if not _found:
656
# we are being called directly and must probe.
657
raise NotImplementedError
658
return BzrBranch(_format=self,
659
_control_files=a_bzrdir._control_files,
660
a_bzrdir=a_bzrdir,
661
_repository=a_bzrdir.open_repository())
662
663
def __str__(self):
664
return "Bazaar-NG branch format 4"
665
666
667
class BzrBranchFormat5(BranchFormat):
668
"""Bzr branch format 5.
669
670
This format has:
671
- a revision-history file.
672
- a format string
673
- a lock dir guarding the branch itself
674
- all of this stored in a branch/ subdirectory
675
- works with shared repositories.
676
677
This format is new in bzr 0.8.
678
"""
679
680
def get_format_string(self):
681
"""See BranchFormat.get_format_string()."""
682
return "Bazaar-NG branch format 5\n"
683
684
def get_format_description(self):
685
"""See BranchFormat.get_format_description()."""
686
return "Branch format 5"
687
688
def initialize(self, a_bzrdir):
689
"""Create a branch of this format in a_bzrdir."""
690
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
691
branch_transport = a_bzrdir.get_branch_transport(self)
692
utf8_files = [('revision-history', ''),
693
('branch-name', ''),
694
]
695
control_files = LockableFiles(branch_transport, 'lock', LockDir)
696
control_files.create_lock()
697
control_files.lock_write()
698
control_files.put_utf8('format', self.get_format_string())
699
try:
700
for file, content in utf8_files:
701
control_files.put_utf8(file, content)
702
finally:
703
control_files.unlock()
704
return self.open(a_bzrdir, _found=True, )
705
706
def __init__(self):
707
super(BzrBranchFormat5, self).__init__()
708
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
709
710
def open(self, a_bzrdir, _found=False):
711
"""Return the branch object for a_bzrdir
712
713
_found is a private parameter, do not use it. It is used to indicate
714
if format probing has already be done.
715
"""
716
if not _found:
717
format = BranchFormat.find_format(a_bzrdir)
718
assert format.__class__ == self.__class__
719
transport = a_bzrdir.get_branch_transport(None)
720
control_files = LockableFiles(transport, 'lock', LockDir)
721
return BzrBranch5(_format=self,
722
_control_files=control_files,
723
a_bzrdir=a_bzrdir,
724
_repository=a_bzrdir.find_repository())
725
726
def __str__(self):
727
return "Bazaar-NG Metadir branch format 5"
728
729
730
class BranchReferenceFormat(BranchFormat):
731
"""Bzr branch reference format.
732
733
Branch references are used in implementing checkouts, they
734
act as an alias to the real branch which is at some other url.
735
736
This format has:
737
- A location file
738
- a format string
739
"""
740
741
def get_format_string(self):
742
"""See BranchFormat.get_format_string()."""
743
return "Bazaar-NG Branch Reference Format 1\n"
744
745
def get_format_description(self):
746
"""See BranchFormat.get_format_description()."""
747
return "Checkout reference format 1"
748
749
def initialize(self, a_bzrdir, target_branch=None):
750
"""Create a branch of this format in a_bzrdir."""
751
if target_branch is None:
752
# this format does not implement branch itself, thus the implicit
753
# creation contract must see it as uninitializable
754
raise errors.UninitializableFormat(self)
755
mutter('creating branch reference in %s', a_bzrdir.transport.base)
756
branch_transport = a_bzrdir.get_branch_transport(self)
757
# FIXME rbc 20060209 one j-a-ms encoding branch lands this str() cast is not needed.
758
branch_transport.put('location', StringIO(str(target_branch.bzrdir.root_transport.base)))
759
branch_transport.put('format', StringIO(self.get_format_string()))
760
return self.open(a_bzrdir, _found=True)
761
762
def __init__(self):
763
super(BranchReferenceFormat, self).__init__()
764
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
765
766
def _make_reference_clone_function(format, a_branch):
767
"""Create a clone() routine for a branch dynamically."""
768
def clone(to_bzrdir, revision_id=None):
769
"""See Branch.clone()."""
770
return format.initialize(to_bzrdir, a_branch)
771
# cannot obey revision_id limits when cloning a reference ...
772
# FIXME RBC 20060210 either nuke revision_id for clone, or
773
# emit some sort of warning/error to the caller ?!
774
return clone
775
776
def open(self, a_bzrdir, _found=False):
777
"""Return the branch that the branch reference in a_bzrdir points at.
778
779
_found is a private parameter, do not use it. It is used to indicate
780
if format probing has already be done.
781
"""
782
if not _found:
783
format = BranchFormat.find_format(a_bzrdir)
784
assert format.__class__ == self.__class__
785
transport = a_bzrdir.get_branch_transport(None)
786
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
787
result = real_bzrdir.open_branch()
788
# this changes the behaviour of result.clone to create a new reference
789
# rather than a copy of the content of the branch.
790
# I did not use a proxy object because that needs much more extensive
791
# testing, and we are only changing one behaviour at the moment.
792
# If we decide to alter more behaviours - i.e. the implicit nickname
793
# then this should be refactored to introduce a tested proxy branch
794
# and a subclass of that for use in overriding clone() and ....
795
# - RBC 20060210
796
result.clone = self._make_reference_clone_function(result)
797
return result
798
799
800
# formats which have no format string are not discoverable
801
# and not independently creatable, so are not registered.
802
__default_format = BzrBranchFormat5()
803
BranchFormat.register_format(__default_format)
804
BranchFormat.register_format(BranchReferenceFormat())
805
BranchFormat.set_default_format(__default_format)
806
_legacy_formats = [BzrBranchFormat4(),
807
]
808
809
class BzrBranch(Branch):
810
"""A branch stored in the actual filesystem.
811
812
Note that it's "local" in the context of the filesystem; it doesn't
813
really matter if it's on an nfs/smb/afs/coda/... share, as long as
814
it's writable, and can be accessed via the normal filesystem API.
815
"""
816
817
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
818
relax_version_check=DEPRECATED_PARAMETER, _format=None,
819
_control_files=None, a_bzrdir=None, _repository=None):
820
"""Create new branch object at a particular location.
821
822
transport -- A Transport object, defining how to access files.
823
824
init -- If True, create new control files in a previously
825
unversioned directory. If False, the branch must already
826
be versioned.
827
828
relax_version_check -- If true, the usual check for the branch
829
version is not applied. This is intended only for
830
upgrade/recovery type use; it's not guaranteed that
831
all operations will work on old format branches.
832
"""
833
if a_bzrdir is None:
834
self.bzrdir = bzrdir.BzrDir.open(transport.base)
835
else:
836
self.bzrdir = a_bzrdir
837
self._transport = self.bzrdir.transport.clone('..')
838
self._base = self._transport.base
839
self._format = _format
840
if _control_files is None:
841
raise BzrBadParameterMissing('_control_files')
842
self.control_files = _control_files
843
if deprecated_passed(init):
844
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
845
"deprecated as of bzr 0.8. Please use Branch.create().",
846
DeprecationWarning,
847
stacklevel=2)
848
if init:
849
# this is slower than before deprecation, oh well never mind.
850
# -> its deprecated.
851
self._initialize(transport.base)
852
self._check_format(_format)
853
if deprecated_passed(relax_version_check):
854
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
855
"relax_version_check parameter is deprecated as of bzr 0.8. "
856
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
857
"open() method.",
858
DeprecationWarning,
859
stacklevel=2)
860
if (not relax_version_check
861
and not self._format.is_supported()):
862
raise errors.UnsupportedFormatError(
863
'sorry, branch format %r not supported' % fmt,
864
['use a different bzr version',
865
'or remove the .bzr directory'
866
' and "bzr init" again'])
867
if deprecated_passed(transport):
868
warn("BzrBranch.__init__(transport=XXX...): The transport "
869
"parameter is deprecated as of bzr 0.8. "
870
"Please use Branch.open, or bzrdir.open_branch().",
871
DeprecationWarning,
872
stacklevel=2)
873
self.repository = _repository
874
875
def __str__(self):
876
return '%s(%r)' % (self.__class__.__name__, self.base)
877
878
__repr__ = __str__
879
1417
880
def __del__(self):
1418
self.destroy()
1419
1420
def destroy(self):
1421
"""Destroy the test branch, removing the scratch directory."""
1422
from shutil import rmtree
1423
try:
1424
if self.base:
1425
mutter("delete ScratchBranch %s" % self.base)
1426
rmtree(self.base)
1427
except OSError, e:
1428
# Work around for shutil.rmtree failing on Windows when
1429
# readonly files are encountered
1430
mutter("hit exception in destroying ScratchBranch: %s" % e)
1431
for root, dirs, files in os.walk(self.base, topdown=False):
1432
for name in files:
1433
os.chmod(os.path.join(root, name), 0700)
1434
rmtree(self.base)
1435
self.base = None
1436
881
# TODO: It might be best to do this somewhere else,
882
# but it is nice for a Branch object to automatically
883
# cache it's information.
884
# Alternatively, we could have the Transport objects cache requests
885
# See the earlier discussion about how major objects (like Branch)
886
# should never expect their __del__ function to run.
887
# XXX: cache_root seems to be unused, 2006-01-13 mbp
888
if hasattr(self, 'cache_root') and self.cache_root is not None:
889
try:
890
rmtree(self.cache_root)
891
except:
892
pass
893
self.cache_root = None
894
895
def _get_base(self):
896
return self._base
897
898
base = property(_get_base, doc="The URL for the root of this branch.")
899
900
def _finish_transaction(self):
901
"""Exit the current transaction."""
902
return self.control_files._finish_transaction()
903
904
def get_transaction(self):
905
"""Return the current active transaction.
906
907
If no transaction is active, this returns a passthrough object
908
for which all data is immediately flushed and no caching happens.
909
"""
910
# this is an explicit function so that we can do tricky stuff
911
# when the storage in rev_storage is elsewhere.
912
# we probably need to hook the two 'lock a location' and
913
# 'have a transaction' together more delicately, so that
914
# we can have two locks (branch and storage) and one transaction
915
# ... and finishing the transaction unlocks both, but unlocking
916
# does not. - RBC 20051121
917
return self.control_files.get_transaction()
918
919
def _set_transaction(self, transaction):
920
"""Set a new active transaction."""
921
return self.control_files._set_transaction(transaction)
922
923
def abspath(self, name):
924
"""See Branch.abspath."""
925
return self.control_files._transport.abspath(name)
926
927
def _check_format(self, format):
928
"""Identify the branch format if needed.
929
930
The format is stored as a reference to the format object in
931
self._format for code that needs to check it later.
932
933
The format parameter is either None or the branch format class
934
used to open this branch.
935
936
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
937
"""
938
if format is None:
939
format = BzrBranchFormat.find_format(self.bzrdir)
940
self._format = format
941
mutter("got branch format %s", self._format)
942
943
@needs_read_lock
944
def get_root_id(self):
945
"""See Branch.get_root_id."""
946
tree = self.repository.revision_tree(self.last_revision())
947
return tree.inventory.root.file_id
948
949
def is_locked(self):
950
return self.control_files.is_locked()
951
952
def lock_write(self):
953
# TODO: test for failed two phase locks. This is known broken.
954
self.control_files.lock_write()
955
self.repository.lock_write()
956
957
def lock_read(self):
958
# TODO: test for failed two phase locks. This is known broken.
959
self.control_files.lock_read()
960
self.repository.lock_read()
961
962
def unlock(self):
963
# TODO: test for failed two phase locks. This is known broken.
964
self.repository.unlock()
965
self.control_files.unlock()
966
967
def peek_lock_mode(self):
968
if self.control_files._lock_count == 0:
969
return None
970
else:
971
return self.control_files._lock_mode
972
973
def get_physical_lock_status(self):
974
return self.control_files.get_physical_lock_status()
975
976
@needs_read_lock
977
def print_file(self, file, revision_id):
978
"""See Branch.print_file."""
979
return self.repository.print_file(file, revision_id)
980
981
@needs_write_lock
982
def append_revision(self, *revision_ids):
983
"""See Branch.append_revision."""
984
for revision_id in revision_ids:
985
mutter("add {%s} to revision-history" % revision_id)
986
rev_history = self.revision_history()
987
rev_history.extend(revision_ids)
988
self.set_revision_history(rev_history)
989
990
@needs_write_lock
991
def set_revision_history(self, rev_history):
992
"""See Branch.set_revision_history."""
993
self.control_files.put_utf8(
994
'revision-history', '\n'.join(rev_history))
995
transaction = self.get_transaction()
996
history = transaction.map.find_revision_history()
997
if history is not None:
998
# update the revision history in the identity map.
999
history[:] = list(rev_history)
1000
# this call is disabled because revision_history is
1001
# not really an object yet, and the transaction is for objects.
1002
# transaction.register_dirty(history)
1003
else:
1004
transaction.map.add_revision_history(rev_history)
1005
# this call is disabled because revision_history is
1006
# not really an object yet, and the transaction is for objects.
1007
# transaction.register_clean(history)
1008
1009
def get_revision_delta(self, revno):
1010
"""Return the delta for one revision.
1011
1012
The delta is relative to its mainline predecessor, or the
1013
empty tree for revision 1.
1014
"""
1015
assert isinstance(revno, int)
1016
rh = self.revision_history()
1017
if not (1 <= revno <= len(rh)):
1018
raise InvalidRevisionNumber(revno)
1019
1020
# revno is 1-based; list is 0-based
1021
1022
new_tree = self.repository.revision_tree(rh[revno-1])
1023
if revno == 1:
1024
old_tree = EmptyTree()
1025
else:
1026
old_tree = self.repository.revision_tree(rh[revno-2])
1027
return compare_trees(old_tree, new_tree)
1028
1029
@needs_read_lock
1030
def revision_history(self):
1031
"""See Branch.revision_history."""
1032
transaction = self.get_transaction()
1033
history = transaction.map.find_revision_history()
1034
if history is not None:
1035
mutter("cache hit for revision-history in %s", self)
1036
return list(history)
1037
history = [l.rstrip('\r\n') for l in
1038
self.control_files.get_utf8('revision-history').readlines()]
1039
transaction.map.add_revision_history(history)
1040
# this call is disabled because revision_history is
1041
# not really an object yet, and the transaction is for objects.
1042
# transaction.register_clean(history, precious=True)
1043
return list(history)
1044
1045
@needs_write_lock
1046
def update_revisions(self, other, stop_revision=None):
1047
"""See Branch.update_revisions."""
1048
other.lock_read()
1049
try:
1050
if stop_revision is None:
1051
stop_revision = other.last_revision()
1052
if stop_revision is None:
1053
# if there are no commits, we're done.
1054
return
1055
# whats the current last revision, before we fetch [and change it
1056
# possibly]
1057
last_rev = self.last_revision()
1058
# we fetch here regardless of whether we need to so that we pickup
1059
# filled in ghosts.
1060
self.fetch(other, stop_revision)
1061
my_ancestry = self.repository.get_ancestry(last_rev)
1062
if stop_revision in my_ancestry:
1063
# last_revision is a descendant of stop_revision
1064
return
1065
# stop_revision must be a descendant of last_revision
1066
stop_graph = self.repository.get_revision_graph(stop_revision)
1067
if last_rev is not None and last_rev not in stop_graph:
1068
# our previous tip is not merged into stop_revision
1069
raise errors.DivergedBranches(self, other)
1070
# make a new revision history from the graph
1071
current_rev_id = stop_revision
1072
new_history = []
1073
while current_rev_id not in (None, NULL_REVISION):
1074
new_history.append(current_rev_id)
1075
current_rev_id_parents = stop_graph[current_rev_id]
1076
try:
1077
current_rev_id = current_rev_id_parents[0]
1078
except IndexError:
1079
current_rev_id = None
1080
new_history.reverse()
1081
self.set_revision_history(new_history)
1082
finally:
1083
other.unlock()
1084
1085
@deprecated_method(zero_eight)
1086
def pullable_revisions(self, other, stop_revision):
1087
"""Please use bzrlib.missing instead."""
1088
other_revno = other.revision_id_to_revno(stop_revision)
1089
try:
1090
return self.missing_revisions(other, other_revno)
1091
except DivergedBranches, e:
1092
try:
1093
pullable_revs = get_intervening_revisions(self.last_revision(),
1094
stop_revision,
1095
self.repository)
1096
assert self.last_revision() not in pullable_revs
1097
return pullable_revs
1098
except bzrlib.errors.NotAncestor:
1099
if is_ancestor(self.last_revision(), stop_revision, self):
1100
return []
1101
else:
1102
raise e
1103
1104
def basis_tree(self):
1105
"""See Branch.basis_tree."""
1106
return self.repository.revision_tree(self.last_revision())
1107
1108
@deprecated_method(zero_eight)
1109
def working_tree(self):
1110
"""Create a Working tree object for this branch."""
1111
from bzrlib.workingtree import WorkingTree
1112
from bzrlib.transport.local import LocalTransport
1113
if (self.base.find('://') != -1 or
1114
not isinstance(self._transport, LocalTransport)):
1115
raise NoWorkingTree(self.base)
1116
return self.bzrdir.open_workingtree()
1117
1118
@needs_write_lock
1119
def pull(self, source, overwrite=False, stop_revision=None):
1120
"""See Branch.pull."""
1121
source.lock_read()
1122
try:
1123
old_count = len(self.revision_history())
1124
try:
1125
self.update_revisions(source,stop_revision)
1126
except DivergedBranches:
1127
if not overwrite:
1128
raise
1129
if overwrite:
1130
self.set_revision_history(source.revision_history())
1131
new_count = len(self.revision_history())
1132
return new_count - old_count
1133
finally:
1134
source.unlock()
1135
1136
def get_parent(self):
1137
"""See Branch.get_parent."""
1138
import errno
1139
_locs = ['parent', 'pull', 'x-pull']
1140
for l in _locs:
1141
try:
1142
return self.control_files.get_utf8(l).read().strip('\n')
1143
except NoSuchFile:
1144
pass
1145
return None
1146
1147
def get_push_location(self):
1148
"""See Branch.get_push_location."""
1149
config = bzrlib.config.BranchConfig(self)
1150
push_loc = config.get_user_option('push_location')
1151
return push_loc
1152
1153
def set_push_location(self, location):
1154
"""See Branch.set_push_location."""
1155
config = bzrlib.config.LocationConfig(self.base)
1156
config.set_user_option('push_location', location)
1157
1158
@needs_write_lock
1159
def set_parent(self, url):
1160
"""See Branch.set_parent."""
1161
# TODO: Maybe delete old location files?
1162
# URLs should never be unicode, even on the local fs,
1163
# FIXUP this and get_parent in a future branch format bump:
1164
# read and rewrite the file, and have the new format code read
1165
# using .get not .get_utf8. RBC 20060125
1166
if url is None:
1167
self.control_files._transport.delete('parent')
1168
else:
1169
self.control_files.put_utf8('parent', url + '\n')
1170
1171
def tree_config(self):
1172
return TreeConfig(self)
1173
1174
1175
class BzrBranch5(BzrBranch):
1176
"""A format 5 branch. This supports new features over plan branches.
1177
1178
It has support for a master_branch which is the data for bound branches.
1179
"""
1180
1181
def __init__(self,
1182
_format,
1183
_control_files,
1184
a_bzrdir,
1185
_repository):
1186
super(BzrBranch5, self).__init__(_format=_format,
1187
_control_files=_control_files,
1188
a_bzrdir=a_bzrdir,
1189
_repository=_repository)
1190
1191
@needs_write_lock
1192
def pull(self, source, overwrite=False, stop_revision=None):
1193
"""Updates branch.pull to be bound branch aware."""
1194
bound_location = self.get_bound_location()
1195
if source.base != bound_location:
1196
# not pulling from master, so we need to update master.
1197
master_branch = self.get_master_branch()
1198
if master_branch:
1199
master_branch.pull(source)
1200
source = master_branch
1201
return super(BzrBranch5, self).pull(source, overwrite, stop_revision)
1202
1203
def get_bound_location(self):
1204
try:
1205
return self.control_files.get_utf8('bound').read()[:-1]
1206
except errors.NoSuchFile:
1207
return None
1208
1209
@needs_read_lock
1210
def get_master_branch(self):
1211
"""Return the branch we are bound to.
1212
1213
:return: Either a Branch, or None
1214
1215
This could memoise the branch, but if thats done
1216
it must be revalidated on each new lock.
1217
So for now we just dont memoise it.
1218
# RBC 20060304 review this decision.
1219
"""
1220
bound_loc = self.get_bound_location()
1221
if not bound_loc:
1222
return None
1223
try:
1224
return Branch.open(bound_loc)
1225
except (errors.NotBranchError, errors.ConnectionError), e:
1226
raise errors.BoundBranchConnectionFailure(
1227
self, bound_loc, e)
1228
1229
@needs_write_lock
1230
def set_bound_location(self, location):
1231
"""Set the target where this branch is bound to.
1232
1233
:param location: URL to the target branch
1234
"""
1235
if location:
1236
self.control_files.put_utf8('bound', location+'\n')
1237
else:
1238
try:
1239
self.control_files._transport.delete('bound')
1240
except NoSuchFile:
1241
return False
1242
return True
1243
1244
@needs_write_lock
1245
def bind(self, other):
1246
"""Bind the local branch the other branch.
1247
1248
:param other: The branch to bind to
1249
:type other: Branch
1250
"""
1251
# TODO: jam 20051230 Consider checking if the target is bound
1252
# It is debatable whether you should be able to bind to
1253
# a branch which is itself bound.
1254
# Committing is obviously forbidden,
1255
# but binding itself may not be.
1256
# Since we *have* to check at commit time, we don't
1257
# *need* to check here
1258
self.pull(other)
1259
1260
# we are now equal to or a suffix of other.
1261
1262
# Since we have 'pulled' from the remote location,
1263
# now we should try to pull in the opposite direction
1264
# in case the local tree has more revisions than the
1265
# remote one.
1266
# There may be a different check you could do here
1267
# rather than actually trying to install revisions remotely.
1268
# TODO: capture an exception which indicates the remote branch
1269
# is not writeable.
1270
# If it is up-to-date, this probably should not be a failure
1271
1272
# lock other for write so the revision-history syncing cannot race
1273
other.lock_write()
1274
try:
1275
other.pull(self)
1276
# if this does not error, other now has the same last rev we do
1277
# it can only error if the pull from other was concurrent with
1278
# a commit to other from someone else.
1279
1280
# until we ditch revision-history, we need to sync them up:
1281
self.set_revision_history(other.revision_history())
1282
# now other and self are up to date with each other and have the
1283
# same revision-history.
1284
finally:
1285
other.unlock()
1286
1287
self.set_bound_location(other.base)
1288
1289
@needs_write_lock
1290
def unbind(self):
1291
"""If bound, unbind"""
1292
return self.set_bound_location(None)
1293
1294
@needs_write_lock
1295
def update(self):
1296
"""Synchronise this branch with the master branch if any.
1297
1298
:return: None or the last_revision that was pivoted out during the
1299
update.
1300
"""
1301
master = self.get_master_branch()
1302
if master is not None:
1303
old_tip = self.last_revision()
1304
self.pull(master, overwrite=True)
1305
if old_tip in self.repository.get_ancestry(self.last_revision()):
1306
return None
1307
return old_tip
1308
return None
1309
1310
1311
class BranchTestProviderAdapter(object):
1312
"""A tool to generate a suite testing multiple branch formats at once.
1313
1314
This is done by copying the test once for each transport and injecting
1315
the transport_server, transport_readonly_server, and branch_format
1316
classes into each copy. Each copy is also given a new id() to make it
1317
easy to identify.
1318
"""
1319
1320
def __init__(self, transport_server, transport_readonly_server, formats):
1321
self._transport_server = transport_server
1322
self._transport_readonly_server = transport_readonly_server
1323
self._formats = formats
1437
1324
1325
def adapt(self, test):
1326
result = TestSuite()
1327
for branch_format, bzrdir_format in self._formats:
1328
new_test = deepcopy(test)
1329
new_test.transport_server = self._transport_server
1330
new_test.transport_readonly_server = self._transport_readonly_server
1331
new_test.bzrdir_format = bzrdir_format
1332
new_test.branch_format = branch_format
1333
def make_new_test_id():
1334
new_id = "%s(%s)" % (new_test.id(), branch_format.__class__.__name__)
1335
return lambda: new_id
1336
new_test.id = make_new_test_id()
1337
result.addTest(new_test)
1338
return result
1339
1438
1340
1439
1341
######################################################################
1440
1342
# predicates
1441
1343
1442
1344
1443
def is_control_file(filename):
1444
## FIXME: better check
1445
filename = os.path.normpath(filename)
1446
while filename != '':
1447
head, tail = os.path.split(filename)
1448
## mutter('check %r for control file' % ((head, tail), ))
1449
if tail == bzrlib.BZRDIR:
1450
return True
1451
if filename == head:
1452
break
1453
filename = head
1454
return False
1455
1456
1457
1458
def gen_file_id(name):
1459
"""Return new file id.
1460
1461
This should probably generate proper UUIDs, but for the moment we
1462
cope with just randomness because running uuidgen every time is
1463
slow."""
1464
import re
1465
from binascii import hexlify
1466
from time import time
1467
1468
# get last component
1469
idx = name.rfind('/')
1470
if idx != -1:
1471
name = name[idx+1 : ]
1472
idx = name.rfind('\\')
1473
if idx != -1:
1474
name = name[idx+1 : ]
1475
1476
# make it not a hidden file
1477
name = name.lstrip('.')
1478
1479
# remove any wierd characters; we don't escape them but rather
1480
# just pull them out
1481
name = re.sub(r'[^\w.]', '', name)
1482
1483
s = hexlify(rand_bytes(8))
1484
return '-'.join((name, compact_date(time()), s))
1485
1486
1487
def gen_root_id():
1488
"""Return a new tree-root file id."""
1489
return gen_file_id('TREE_ROOT')
1490
1491
1492
def pull_loc(branch):
1493
# TODO: Should perhaps just make attribute be 'base' in
1494
# RemoteBranch and Branch?
1495
if hasattr(branch, "baseurl"):
1496
return branch.baseurl
1497
else:
1498
return branch.base
1499
1500
1501
def copy_branch(branch_from, to_location, revision=None):
1502
"""Copy branch_from into the existing directory to_location.
1503
1504
revision
1505
If not None, only revisions up to this point will be copied.
1506
The head of the new branch will be that revision.
1507
1508
to_location
1509
The name of a local directory that exists but is empty.
1510
"""
1511
from bzrlib.merge import merge
1512
from bzrlib.branch import Branch
1513
1514
assert isinstance(branch_from, Branch)
1515
assert isinstance(to_location, basestring)
1516
1517
br_to = Branch(to_location, init=True)
1518
br_to.set_root_id(branch_from.get_root_id())
1519
if revision is None:
1520
revno = branch_from.revno()
1521
else:
1522
revno, rev_id = branch_from.get_revision_info(revision)
1523
br_to.update_revisions(branch_from, stop_revision=revno)
1524
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1525
check_clean=False, ignore_zero=True)
1526
1527
from_location = pull_loc(branch_from)
1528
br_to.set_parent(pull_loc(branch_from))
1529
1345
@deprecated_function(zero_eight)
1346
def ScratchBranch(*args, **kwargs):
1347
"""See bzrlib.bzrdir.ScratchDir."""
1348
d = ScratchDir(*args, **kwargs)
1349
return d.open_branch()
1350
1351
1352
@deprecated_function(zero_eight)
1353
def is_control_file(*args, **kwargs):
1354
"""See bzrlib.workingtree.is_control_file."""
1355
return bzrlib.workingtree.is_control_file(*args, **kwargs)
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