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- Committer: Alexander Belchenko
- Date: 2007-03-11 19:39:37 UTC
- mto: This revision was merged to the branch mainline in revision 2335.
- Revision ID: bialix@ukr.net-20070311193937-nx38jief5kw8pp2f
external diff: no need for special code path for win32 (suggested by John Meinel)
- files added:
- BRANCH.TODO
- bzrlib/benchmarks
- bzrlib/benchmarks/tree_creator
- bzrlib/bundle
- bzrlib/bundle/old
- bzrlib/bundle/serializer
- bzrlib/doc
- bzrlib/doc/api
- bzrlib/export
- bzrlib/plugins/launchpad
- bzrlib/repofmt
- 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/intertree_implementations
- bzrlib/tests/interversionedfile_implementations
- bzrlib/tests/repository_implementations
- bzrlib/tests/revisionstore_implementations
- bzrlib/tests/test_patches_data
- bzrlib/tests/tree_implementations
- bzrlib/tests/workingtree_implementations
- bzrlib/transport
- bzrlib/transport/http
- bzrlib/ui
- bzrlib/util
- bzrlib/util/configobj
- bzrlib/util/configobj/docs
- bzrlib/version_info_formats
- tools/doc_generate
- tools/win32
- files removed:
- bzrlib/mdiff.py
- notes
- patches
- plugins/changeset
- urlgrabber
- files renamed:
- bzrlib/changeset.py => bzrlib/bundle/__init__.py
- plugins/ => bzrlib/plugins/
- bzrlib/store.py => bzrlib/store/__init__.py
- bzrlib/selftest/ => bzrlib/tests/
- bzrlib/selftest/teststatus.py => bzrlib/tests/blackbox/test_status.py
- bzrlib/selftest/blackbox.py => bzrlib/tests/blackbox/test_too_much.py
- bzrlib/selftest/versioning.py => bzrlib/tests/blackbox/test_versioning.py
- bzrlib/selftest/testbranch.py => bzrlib/tests/branch_implementations/test_branch.py
- bzrlib/selftest/testdiff.py => bzrlib/tests/test_diff.py
- bzrlib/selftest/testhashcache.py => bzrlib/tests/test_hashcache.py
- bzrlib/selftest/testinv.py => bzrlib/tests/test_inv.py
- bzrlib/selftest/testlog.py => bzrlib/tests/test_log.py
- bzrlib/selftest/testmerge3.py => bzrlib/tests/test_merge3.py
- bzrlib/selftest/plugins.py => bzrlib/tests/test_plugins.py
- bzrlib/selftest/testrevision.py => bzrlib/tests/test_revision.py
- bzrlib/selftest/testrevisionnamespaces.py => bzrlib/tests/test_revisionnamespaces.py
- tools/testweave.py => bzrlib/tests/test_weave.py
- bzrlib/selftest/whitebox.py => bzrlib/tests/test_whitebox.py
- effbot/ => bzrlib/util/effbot/
- elementtree/ => bzrlib/util/elementtree/
- bzrlib/xml.py => bzrlib/xml_serializer.py
- bzrlib/newinventory.py => contrib/newinventory.py
- tutorial.txt => doc/tutorial.txt
- bzr-man.py => tools/doc_generate/autodoc_man.py
- files modified:
- .bzrignore
- bzr *
added
removed
bzrlib/branch.py
1
# Copyright (C) 2005 Canonical Ltd
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1
# Copyright (C) 2005, 2006, 2007 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import sys
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import os
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from cStringIO import StringIO
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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from copy import deepcopy
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from unittest import TestSuite
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from warnings import warn
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26
import bzrlib
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from bzrlib import (
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bzrdir,
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cache_utf8,
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config as _mod_config,
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errors,
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lockdir,
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lockable_files,
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osutils,
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revision as _mod_revision,
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transport,
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tree,
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ui,
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urlutils,
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)
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from bzrlib.config import BranchConfig, TreeConfig
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from bzrlib.lockable_files import LockableFiles, TransportLock
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from bzrlib.tag import (
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BasicTags,
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DisabledTags,
46
)
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""")
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from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.errors import (BzrError, BzrCheckError, DivergedBranches,
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HistoryMissing, InvalidRevisionId,
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InvalidRevisionNumber, LockError, NoSuchFile,
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NoSuchRevision, NoWorkingTree, NotVersionedError,
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NotBranchError, UninitializableFormat,
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UnlistableStore, UnlistableBranch,
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)
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from bzrlib.symbol_versioning import (deprecated_function,
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deprecated_method,
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DEPRECATED_PARAMETER,
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deprecated_passed,
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zero_eight, zero_nine,
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)
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from bzrlib.trace import mutter, note
23
from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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import bzrlib.errors
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
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# TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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import remotebranch
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return remotebranch.RemoteBranch(f, **args)
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else:
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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os.mkdir(cache_path)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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return br
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
72
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):
84
if head == base:
85
break
86
head, tail = os.path.split(head)
87
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))
92
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return os.sep.join(s)
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root."""
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if f == None:
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f = os.getcwd()
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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else:
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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orig_f = f
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while True:
118
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)
121
if head == f:
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# reached the root, whatever that may be
123
raise BzrError('%r is not in a branch' % orig_f)
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f = head
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
75
# 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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hooks: An instance of BranchHooks.
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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
155
_lock = None
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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be versioned.
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find_root -- If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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"""
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from bzrlib.store import ImmutableStore
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if init:
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self.base = os.path.realpath(base)
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self._make_control()
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elif find_root:
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self.base = find_branch_root(base)
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else:
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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from errors import NotBranchError
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raise NotBranchError("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self._check_format()
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self.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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def __str__(self):
198
return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
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if self._lock_mode or self._lock:
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from warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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self._lock.unlock()
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# override this to set the strategy for storing tags
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def _make_tags(self):
97
return DisabledTags(self)
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def __init__(self, *ignored, **ignored_too):
100
self.tags = self._make_tags()
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def break_lock(self):
103
"""Break a lock if one is present from another instance.
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Uses the ui factory to ask for confirmation if the lock may be from
106
an active process.
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This will probe the repository for its lock as well.
109
"""
110
self.control_files.break_lock()
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self.repository.break_lock()
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master = self.get_master_branch()
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if master is not None:
114
master.break_lock()
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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 branch rooted at base.
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For instance, if the branch is at URL/.bzr/branch,
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Branch.open(URL) -> a Branch instance.
128
"""
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control = bzrdir.BzrDir.open(base, _unsupported)
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return control.open_branch(_unsupported)
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@staticmethod
133
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.
143
"""
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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
148
@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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152
NOTE: This will soon be deprecated in favour of creation
153
through a BzrDir.
154
"""
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return bzrdir.BzrDir.create_standalone_workingtree(base).branch
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@deprecated_function(zero_eight)
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def setup_caching(self, cache_root):
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"""Subclasses that care about caching should override this, and set
160
up cached stores located under cache_root.
161
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NOTE: This is unused.
163
"""
164
pass
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def get_config(self):
167
return BranchConfig(self)
168
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def _get_nick(self):
170
return self.get_config().get_nickname()
171
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def _set_nick(self, nick):
173
self.get_config().set_user_option('nickname', nick)
174
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nick = property(_get_nick, _set_nick)
176
177
def is_locked(self):
178
raise NotImplementedError(self.is_locked)
211
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212
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def lock_write(self):
213
if self._lock_mode:
214
if self._lock_mode != 'w':
215
from errors import LockError
216
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
219
else:
220
from bzrlib.lock import WriteLock
221
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self._lock = WriteLock(self.controlfilename('branch-lock'))
223
self._lock_mode = 'w'
224
self._lock_count = 1
225
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raise NotImplementedError(self.lock_write)
227
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def lock_read(self):
229
if self._lock_mode:
230
assert self._lock_mode in ('r', 'w'), \
231
"invalid lock mode %r" % self._lock_mode
232
self._lock_count += 1
233
else:
234
from bzrlib.lock import ReadLock
235
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
238
self._lock_count = 1
239
240
241
184
raise NotImplementedError(self.lock_read)
185
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def unlock(self):
243
if not self._lock_mode:
244
from errors import LockError
245
raise LockError('branch %r is not locked' % (self))
246
247
if self._lock_count > 1:
248
self._lock_count -= 1
249
else:
250
self._lock.unlock()
251
self._lock = None
252
self._lock_mode = self._lock_count = None
253
187
raise NotImplementedError(self.unlock)
188
189
def peek_lock_mode(self):
190
"""Return lock mode for the Branch: 'r', 'w' or None"""
191
raise NotImplementedError(self.peek_lock_mode)
192
193
def get_physical_lock_status(self):
194
raise NotImplementedError(self.get_physical_lock_status)
254
195
255
196
def abspath(self, name):
256
"""Return absolute filename for something in the branch"""
257
return os.path.join(self.base, name)
258
259
260
def relpath(self, path):
261
"""Return path relative to this branch of something inside it.
262
263
Raises an error if path is not in this branch."""
264
return _relpath(self.base, path)
265
266
267
def controlfilename(self, file_or_path):
268
"""Return location relative to branch."""
269
if isinstance(file_or_path, basestring):
270
file_or_path = [file_or_path]
271
return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
272
273
274
def controlfile(self, file_or_path, mode='r'):
275
"""Open a control file for this branch.
276
277
There are two classes of file in the control directory: text
278
and binary. binary files are untranslated byte streams. Text
279
control files are stored with Unix newlines and in UTF-8, even
280
if the platform or locale defaults are different.
281
282
Controlfiles should almost never be opened in write mode but
283
rather should be atomically copied and replaced using atomicfile.
284
"""
285
286
fn = self.controlfilename(file_or_path)
287
288
if mode == 'rb' or mode == 'wb':
289
return file(fn, mode)
290
elif mode == 'r' or mode == 'w':
291
# open in binary mode anyhow so there's no newline translation;
292
# codecs uses line buffering by default; don't want that.
293
import codecs
294
return codecs.open(fn, mode + 'b', 'utf-8',
295
buffering=60000)
296
else:
297
raise BzrError("invalid controlfile mode %r" % mode)
298
299
300
301
def _make_control(self):
302
from bzrlib.inventory import Inventory
303
from bzrlib.xml import pack_xml
304
305
os.mkdir(self.controlfilename([]))
306
self.controlfile('README', 'w').write(
307
"This is a Bazaar-NG control directory.\n"
308
"Do not change any files in this directory.\n")
309
self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT)
310
for d in ('text-store', 'inventory-store', 'revision-store'):
311
os.mkdir(self.controlfilename(d))
312
for f in ('revision-history', 'merged-patches',
313
'pending-merged-patches', 'branch-name',
314
'branch-lock',
315
'pending-merges'):
316
self.controlfile(f, 'w').write('')
317
mutter('created control directory in ' + self.base)
318
319
pack_xml(Inventory(gen_root_id()), self.controlfile('inventory','w'))
320
321
322
def _check_format(self):
323
"""Check this branch format is supported.
324
325
The current tool only supports the current unstable format.
326
327
In the future, we might need different in-memory Branch
328
classes to support downlevel branches. But not yet.
329
"""
330
# This ignores newlines so that we can open branches created
331
# on Windows from Linux and so on. I think it might be better
332
# to always make all internal files in unix format.
333
fmt = self.controlfile('branch-format', 'r').read()
334
fmt.replace('\r\n', '')
335
if fmt != BZR_BRANCH_FORMAT:
336
raise BzrError('sorry, branch format %r not supported' % fmt,
337
['use a different bzr version',
338
'or remove the .bzr directory and "bzr init" again'])
339
340
def get_root_id(self):
341
"""Return the id of this branches root"""
342
inv = self.read_working_inventory()
343
return inv.root.file_id
344
345
def set_root_id(self, file_id):
346
inv = self.read_working_inventory()
347
orig_root_id = inv.root.file_id
348
del inv._byid[inv.root.file_id]
349
inv.root.file_id = file_id
350
inv._byid[inv.root.file_id] = inv.root
351
for fid in inv:
352
entry = inv[fid]
353
if entry.parent_id in (None, orig_root_id):
354
entry.parent_id = inv.root.file_id
355
self._write_inventory(inv)
356
357
def read_working_inventory(self):
358
"""Read the working inventory."""
359
from bzrlib.inventory import Inventory
360
from bzrlib.xml import unpack_xml
361
from time import time
362
before = time()
363
self.lock_read()
364
try:
365
# ElementTree does its own conversion from UTF-8, so open in
366
# binary.
367
inv = unpack_xml(Inventory,
368
self.controlfile('inventory', 'rb'))
369
mutter("loaded inventory of %d items in %f"
370
% (len(inv), time() - before))
371
return inv
372
finally:
373
self.unlock()
374
375
376
def _write_inventory(self, inv):
377
"""Update the working inventory.
378
379
That is to say, the inventory describing changes underway, that
380
will be committed to the next revision.
381
"""
382
from bzrlib.atomicfile import AtomicFile
383
from bzrlib.xml import pack_xml
384
385
self.lock_write()
386
try:
387
f = AtomicFile(self.controlfilename('inventory'), 'wb')
388
try:
389
pack_xml(inv, f)
390
f.commit()
391
finally:
392
f.close()
393
finally:
394
self.unlock()
395
396
mutter('wrote working inventory')
397
398
399
inventory = property(read_working_inventory, _write_inventory, None,
400
"""Inventory for the working copy.""")
401
402
403
def add(self, files, verbose=False, ids=None):
404
"""Make files versioned.
405
406
Note that the command line normally calls smart_add instead.
407
408
This puts the files in the Added state, so that they will be
409
recorded by the next commit.
410
411
files
412
List of paths to add, relative to the base of the tree.
413
414
ids
415
If set, use these instead of automatically generated ids.
416
Must be the same length as the list of files, but may
417
contain None for ids that are to be autogenerated.
418
419
TODO: Perhaps have an option to add the ids even if the files do
420
not (yet) exist.
421
422
TODO: Perhaps return the ids of the files? But then again it
423
is easy to retrieve them if they're needed.
424
425
TODO: Adding a directory should optionally recurse down and
426
add all non-ignored children. Perhaps do that in a
427
higher-level method.
428
"""
429
# TODO: Re-adding a file that is removed in the working copy
430
# should probably put it back with the previous ID.
431
if isinstance(files, basestring):
432
assert(ids is None or isinstance(ids, basestring))
433
files = [files]
434
if ids is not None:
435
ids = [ids]
436
437
if ids is None:
438
ids = [None] * len(files)
439
else:
440
assert(len(ids) == len(files))
441
442
self.lock_write()
443
try:
444
inv = self.read_working_inventory()
445
for f,file_id in zip(files, ids):
446
if is_control_file(f):
447
raise BzrError("cannot add control file %s" % quotefn(f))
448
449
fp = splitpath(f)
450
451
if len(fp) == 0:
452
raise BzrError("cannot add top-level %r" % f)
453
454
fullpath = os.path.normpath(self.abspath(f))
455
456
try:
457
kind = file_kind(fullpath)
458
except OSError:
459
# maybe something better?
460
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
461
462
if kind != 'file' and kind != 'directory':
463
raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
464
465
if file_id is None:
466
file_id = gen_file_id(f)
467
inv.add_path(f, kind=kind, file_id=file_id)
468
469
if verbose:
470
print 'added', quotefn(f)
471
472
mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
473
474
self._write_inventory(inv)
475
finally:
476
self.unlock()
477
478
479
def print_file(self, file, revno):
480
"""Print `file` to stdout."""
481
self.lock_read()
482
try:
483
tree = self.revision_tree(self.lookup_revision(revno))
484
# use inventory as it was in that revision
485
file_id = tree.inventory.path2id(file)
486
if not file_id:
487
raise BzrError("%r is not present in revision %s" % (file, revno))
488
tree.print_file(file_id)
489
finally:
490
self.unlock()
491
492
493
def remove(self, files, verbose=False):
494
"""Mark nominated files for removal from the inventory.
495
496
This does not remove their text. This does not run on
497
498
TODO: Refuse to remove modified files unless --force is given?
499
500
TODO: Do something useful with directories.
501
502
TODO: Should this remove the text or not? Tough call; not
503
removing may be useful and the user can just use use rm, and
504
is the opposite of add. Removing it is consistent with most
505
other tools. Maybe an option.
506
"""
507
## TODO: Normalize names
508
## TODO: Remove nested loops; better scalability
509
if isinstance(files, basestring):
510
files = [files]
511
512
self.lock_write()
513
514
try:
515
tree = self.working_tree()
516
inv = tree.inventory
517
518
# do this before any modifications
519
for f in files:
520
fid = inv.path2id(f)
521
if not fid:
522
raise BzrError("cannot remove unversioned file %s" % quotefn(f))
523
mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
524
if verbose:
525
# having remove it, it must be either ignored or unknown
526
if tree.is_ignored(f):
527
new_status = 'I'
528
else:
529
new_status = '?'
530
show_status(new_status, inv[fid].kind, quotefn(f))
531
del inv[fid]
532
533
self._write_inventory(inv)
534
finally:
535
self.unlock()
536
537
538
# FIXME: this doesn't need to be a branch method
539
def set_inventory(self, new_inventory_list):
540
from bzrlib.inventory import Inventory, InventoryEntry
541
inv = Inventory(self.get_root_id())
542
for path, file_id, parent, kind in new_inventory_list:
543
name = os.path.basename(path)
544
if name == "":
545
continue
546
inv.add(InventoryEntry(file_id, name, kind, parent))
547
self._write_inventory(inv)
548
549
550
def unknowns(self):
551
"""Return all unknown files.
552
553
These are files in the working directory that are not versioned or
554
control files or ignored.
555
556
>>> b = ScratchBranch(files=['foo', 'foo~'])
557
>>> list(b.unknowns())
558
['foo']
559
>>> b.add('foo')
560
>>> list(b.unknowns())
561
[]
562
>>> b.remove('foo')
563
>>> list(b.unknowns())
564
['foo']
565
"""
566
return self.working_tree().unknowns()
567
568
569
def append_revision(self, *revision_ids):
570
from bzrlib.atomicfile import AtomicFile
571
572
for revision_id in revision_ids:
573
mutter("add {%s} to revision-history" % revision_id)
574
575
rev_history = self.revision_history()
576
rev_history.extend(revision_ids)
577
578
f = AtomicFile(self.controlfilename('revision-history'))
579
try:
580
for rev_id in rev_history:
581
print >>f, rev_id
582
f.commit()
583
finally:
584
f.close()
585
586
587
def get_revision_xml(self, revision_id):
588
"""Return XML file object for revision object."""
589
if not revision_id or not isinstance(revision_id, basestring):
590
raise InvalidRevisionId(revision_id)
591
592
self.lock_read()
593
try:
594
try:
595
return self.revision_store[revision_id]
596
except IndexError:
597
raise bzrlib.errors.NoSuchRevision(revision_id)
598
finally:
599
self.unlock()
600
601
602
def get_revision(self, revision_id):
603
"""Return the Revision object for a named revision"""
604
xml_file = self.get_revision_xml(revision_id)
605
606
try:
607
r = unpack_xml(Revision, xml_file)
608
except SyntaxError, e:
609
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
610
[revision_id,
611
str(e)])
612
613
assert r.revision_id == revision_id
614
return r
615
197
"""Return absolute filename for something in the branch
198
199
XXX: Robert Collins 20051017 what is this used for? why is it a branch
200
method and not a tree method.
201
"""
202
raise NotImplementedError(self.abspath)
203
204
def bind(self, other):
205
"""Bind the local branch the other branch.
206
207
:param other: The branch to bind to
208
:type other: Branch
209
"""
210
raise errors.UpgradeRequired(self.base)
211
212
@needs_write_lock
213
def fetch(self, from_branch, last_revision=None, pb=None):
214
"""Copy revisions from from_branch into this branch.
215
216
:param from_branch: Where to copy from.
217
:param last_revision: What revision to stop at (None for at the end
218
of the branch.
219
:param pb: An optional progress bar to use.
220
221
Returns the copied revision count and the failed revisions in a tuple:
222
(copied, failures).
223
"""
224
if self.base == from_branch.base:
225
return (0, [])
226
if pb is None:
227
nested_pb = ui.ui_factory.nested_progress_bar()
228
pb = nested_pb
229
else:
230
nested_pb = None
231
232
from_branch.lock_read()
233
try:
234
if last_revision is None:
235
pb.update('get source history')
236
last_revision = from_branch.last_revision()
237
if last_revision is None:
238
last_revision = _mod_revision.NULL_REVISION
239
return self.repository.fetch(from_branch.repository,
240
revision_id=last_revision,
241
pb=nested_pb)
242
finally:
243
if nested_pb is not None:
244
nested_pb.finished()
245
from_branch.unlock()
246
247
def get_bound_location(self):
248
"""Return the URL of the branch we are bound to.
249
250
Older format branches cannot bind, please be sure to use a metadir
251
branch.
252
"""
253
return None
254
255
def get_old_bound_location(self):
256
"""Return the URL of the branch we used to be bound to
257
"""
258
raise errors.UpgradeRequired(self.base)
259
260
def get_commit_builder(self, parents, config=None, timestamp=None,
261
timezone=None, committer=None, revprops=None,
262
revision_id=None):
263
"""Obtain a CommitBuilder for this branch.
264
265
:param parents: Revision ids of the parents of the new revision.
266
:param config: Optional configuration to use.
267
:param timestamp: Optional timestamp recorded for commit.
268
:param timezone: Optional timezone for timestamp.
269
:param committer: Optional committer to set for commit.
270
:param revprops: Optional dictionary of revision properties.
271
:param revision_id: Optional revision id.
272
"""
273
274
if config is None:
275
config = self.get_config()
276
277
return self.repository.get_commit_builder(self, parents, config,
278
timestamp, timezone, committer, revprops, revision_id)
279
280
def get_master_branch(self):
281
"""Return the branch we are bound to.
282
283
:return: Either a Branch, or None
284
"""
285
return None
616
286
617
287
def get_revision_delta(self, revno):
618
288
"""Return the delta for one revision.
624
294
rh = self.revision_history()
625
295
if not (1 <= revno <= len(rh)):
626
296
raise InvalidRevisionNumber(revno)
627
628
# revno is 1-based; list is 0-based
629
630
new_tree = self.revision_tree(rh[revno-1])
631
if revno == 1:
632
old_tree = EmptyTree()
633
else:
634
old_tree = self.revision_tree(rh[revno-2])
635
636
return compare_trees(old_tree, new_tree)
637
638
639
640
def get_revision_sha1(self, revision_id):
641
"""Hash the stored value of a revision, and return it."""
642
# In the future, revision entries will be signed. At that
643
# point, it is probably best *not* to include the signature
644
# in the revision hash. Because that lets you re-sign
645
# the revision, (add signatures/remove signatures) and still
646
# have all hash pointers stay consistent.
647
# But for now, just hash the contents.
648
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
649
650
651
def get_inventory(self, inventory_id):
652
"""Get Inventory object by hash.
653
654
TODO: Perhaps for this and similar methods, take a revision
655
parameter which can be either an integer revno or a
656
string hash."""
657
from bzrlib.inventory import Inventory
658
from bzrlib.xml import unpack_xml
659
660
return unpack_xml(Inventory, self.inventory_store[inventory_id])
661
662
663
def get_inventory_sha1(self, inventory_id):
664
"""Return the sha1 hash of the inventory entry
665
"""
666
return sha_file(self.inventory_store[inventory_id])
667
668
669
def get_revision_inventory(self, revision_id):
670
"""Return inventory of a past revision."""
671
# bzr 0.0.6 imposes the constraint that the inventory_id
672
# must be the same as its revision, so this is trivial.
673
if revision_id == None:
674
from bzrlib.inventory import Inventory
675
return Inventory(self.get_root_id())
676
else:
677
return self.get_inventory(revision_id)
678
297
return self.repository.get_revision_delta(rh[revno-1])
298
299
def get_root_id(self):
300
"""Return the id of this branches root"""
301
raise NotImplementedError(self.get_root_id)
302
303
def print_file(self, file, revision_id):
304
"""Print `file` to stdout."""
305
raise NotImplementedError(self.print_file)
306
307
def append_revision(self, *revision_ids):
308
raise NotImplementedError(self.append_revision)
309
310
def set_revision_history(self, rev_history):
311
raise NotImplementedError(self.set_revision_history)
679
312
680
313
def revision_history(self):
681
"""Return sequence of revision hashes on to this branch.
682
683
>>> ScratchBranch().revision_history()
684
[]
685
"""
686
self.lock_read()
687
try:
688
return [l.rstrip('\r\n') for l in
689
self.controlfile('revision-history', 'r').readlines()]
690
finally:
691
self.unlock()
692
693
694
def common_ancestor(self, other, self_revno=None, other_revno=None):
695
"""
696
>>> import commit
697
>>> sb = ScratchBranch(files=['foo', 'foo~'])
698
>>> sb.common_ancestor(sb) == (None, None)
699
True
700
>>> commit.commit(sb, "Committing first revision", verbose=False)
701
>>> sb.common_ancestor(sb)[0]
702
1
703
>>> clone = sb.clone()
704
>>> commit.commit(sb, "Committing second revision", verbose=False)
705
>>> sb.common_ancestor(sb)[0]
706
2
707
>>> sb.common_ancestor(clone)[0]
708
1
709
>>> commit.commit(clone, "Committing divergent second revision",
710
... verbose=False)
711
>>> sb.common_ancestor(clone)[0]
712
1
713
>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
714
True
715
>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
716
True
717
>>> clone2 = sb.clone()
718
>>> sb.common_ancestor(clone2)[0]
719
2
720
>>> sb.common_ancestor(clone2, self_revno=1)[0]
721
1
722
>>> sb.common_ancestor(clone2, other_revno=1)[0]
723
1
724
"""
725
my_history = self.revision_history()
726
other_history = other.revision_history()
727
if self_revno is None:
728
self_revno = len(my_history)
729
if other_revno is None:
730
other_revno = len(other_history)
731
indices = range(min((self_revno, other_revno)))
732
indices.reverse()
733
for r in indices:
734
if my_history[r] == other_history[r]:
735
return r+1, my_history[r]
736
return None, None
737
314
"""Return sequence of revision hashes on to this branch."""
315
raise NotImplementedError(self.revision_history)
738
316
739
317
def revno(self):
740
318
"""Return current revision number for this branch.
744
322
"""
745
323
return len(self.revision_history())
746
324
747
748
def last_patch(self):
749
"""Return last patch hash, or None if no history.
750
"""
325
def unbind(self):
326
"""Older format branches cannot bind or unbind."""
327
raise errors.UpgradeRequired(self.base)
328
329
def set_append_revisions_only(self, enabled):
330
"""Older format branches are never restricted to append-only"""
331
raise errors.UpgradeRequired(self.base)
332
333
def last_revision(self):
334
"""Return last revision id, or None"""
751
335
ph = self.revision_history()
752
336
if ph:
753
337
return ph[-1]
754
338
else:
755
339
return None
756
340
341
def last_revision_info(self):
342
"""Return information about the last revision.
343
344
:return: A tuple (revno, last_revision_id).
345
"""
346
rh = self.revision_history()
347
revno = len(rh)
348
if revno:
349
return (revno, rh[-1])
350
else:
351
return (0, _mod_revision.NULL_REVISION)
757
352
758
353
def missing_revisions(self, other, stop_revision=None):
759
"""
354
"""Return a list of new revisions that would perfectly fit.
355
760
356
If self and other have not diverged, return a list of the revisions
761
357
present in other, but missing from self.
762
763
>>> from bzrlib.commit import commit
764
>>> bzrlib.trace.silent = True
765
>>> br1 = ScratchBranch()
766
>>> br2 = ScratchBranch()
767
>>> br1.missing_revisions(br2)
768
[]
769
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
770
>>> br1.missing_revisions(br2)
771
[u'REVISION-ID-1']
772
>>> br2.missing_revisions(br1)
773
[]
774
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
775
>>> br1.missing_revisions(br2)
776
[]
777
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
778
>>> br1.missing_revisions(br2)
779
[u'REVISION-ID-2A']
780
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
781
>>> br1.missing_revisions(br2)
782
Traceback (most recent call last):
783
DivergedBranches: These branches have diverged.
784
358
"""
785
359
self_history = self.revision_history()
786
360
self_len = len(self_history)
793
367
794
368
if stop_revision is None:
795
369
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
798
370
else:
371
assert isinstance(stop_revision, int)
372
if stop_revision > other_len:
373
raise errors.NoSuchRevision(self, stop_revision)
799
374
return other_history[self_len:stop_revision]
800
375
801
802
376
def update_revisions(self, other, stop_revision=None):
803
"""Pull in all new revisions from other branch.
804
805
>>> from bzrlib.commit import commit
806
>>> bzrlib.trace.silent = True
807
>>> br1 = ScratchBranch(files=['foo', 'bar'])
808
>>> br1.add('foo')
809
>>> br1.add('bar')
810
>>> commit(br1, "lala!", rev_id="REVISION-ID-1", verbose=False)
811
>>> br2 = ScratchBranch()
812
>>> br2.update_revisions(br1)
813
Added 2 texts.
814
Added 1 inventories.
815
Added 1 revisions.
816
>>> br2.revision_history()
817
[u'REVISION-ID-1']
818
>>> br2.update_revisions(br1)
819
Added 0 texts.
820
Added 0 inventories.
821
Added 0 revisions.
822
>>> br1.text_store.total_size() == br2.text_store.total_size()
823
True
824
"""
825
from bzrlib.progress import ProgressBar
826
827
pb = ProgressBar()
828
829
pb.update('comparing histories')
830
revision_ids = self.missing_revisions(other, stop_revision)
831
832
if hasattr(other.revision_store, "prefetch"):
833
other.revision_store.prefetch(revision_ids)
834
if hasattr(other.inventory_store, "prefetch"):
835
inventory_ids = [other.get_revision(r).inventory_id
836
for r in revision_ids]
837
other.inventory_store.prefetch(inventory_ids)
838
839
revisions = []
840
needed_texts = set()
841
i = 0
842
for rev_id in revision_ids:
843
i += 1
844
pb.update('fetching revision', i, len(revision_ids))
845
rev = other.get_revision(rev_id)
846
revisions.append(rev)
847
inv = other.get_inventory(str(rev.inventory_id))
848
for key, entry in inv.iter_entries():
849
if entry.text_id is None:
850
continue
851
if entry.text_id not in self.text_store:
852
needed_texts.add(entry.text_id)
853
854
pb.clear()
855
856
count = self.text_store.copy_multi(other.text_store, needed_texts)
857
print "Added %d texts." % count
858
inventory_ids = [ f.inventory_id for f in revisions ]
859
count = self.inventory_store.copy_multi(other.inventory_store,
860
inventory_ids)
861
print "Added %d inventories." % count
862
revision_ids = [ f.revision_id for f in revisions]
863
count = self.revision_store.copy_multi(other.revision_store,
864
revision_ids)
865
for revision_id in revision_ids:
866
self.append_revision(revision_id)
867
print "Added %d revisions." % count
868
869
870
def commit(self, *args, **kw):
871
from bzrlib.commit import commit
872
commit(self, *args, **kw)
873
874
875
def lookup_revision(self, revision):
876
"""Return the revision identifier for a given revision information."""
877
revno, info = self.get_revision_info(revision)
878
return info
879
880
def get_revision_info(self, revision):
881
"""Return (revno, revision id) for revision identifier.
882
883
revision can be an integer, in which case it is assumed to be revno (though
884
this will translate negative values into positive ones)
885
revision can also be a string, in which case it is parsed for something like
886
'date:' or 'revid:' etc.
887
"""
888
if revision is None:
889
return 0, None
890
revno = None
891
try:# Convert to int if possible
892
revision = int(revision)
893
except ValueError:
894
pass
895
revs = self.revision_history()
896
if isinstance(revision, int):
897
if revision == 0:
898
return 0, None
899
# Mabye we should do this first, but we don't need it if revision == 0
900
if revision < 0:
901
revno = len(revs) + revision + 1
902
else:
903
revno = revision
904
elif isinstance(revision, basestring):
905
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
906
if revision.startswith(prefix):
907
revno = func(self, revs, revision)
908
break
909
else:
910
raise BzrError('No namespace registered for string: %r' % revision)
911
912
if revno is None or revno <= 0 or revno > len(revs):
913
raise BzrError("no such revision %s" % revision)
914
return revno, revs[revno-1]
915
916
def _namespace_revno(self, revs, revision):
917
"""Lookup a revision by revision number"""
918
assert revision.startswith('revno:')
919
try:
920
return int(revision[6:])
921
except ValueError:
922
return None
923
REVISION_NAMESPACES['revno:'] = _namespace_revno
924
925
def _namespace_revid(self, revs, revision):
926
assert revision.startswith('revid:')
927
try:
928
return revs.index(revision[6:]) + 1
929
except ValueError:
930
return None
931
REVISION_NAMESPACES['revid:'] = _namespace_revid
932
933
def _namespace_last(self, revs, revision):
934
assert revision.startswith('last:')
935
try:
936
offset = int(revision[5:])
937
except ValueError:
938
return None
939
else:
940
if offset <= 0:
941
raise BzrError('You must supply a positive value for --revision last:XXX')
942
return len(revs) - offset + 1
943
REVISION_NAMESPACES['last:'] = _namespace_last
944
945
def _namespace_tag(self, revs, revision):
946
assert revision.startswith('tag:')
947
raise BzrError('tag: namespace registered, but not implemented.')
948
REVISION_NAMESPACES['tag:'] = _namespace_tag
949
950
def _namespace_date(self, revs, revision):
951
assert revision.startswith('date:')
952
import datetime
953
# Spec for date revisions:
954
# date:value
955
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
956
# it can also start with a '+/-/='. '+' says match the first
957
# entry after the given date. '-' is match the first entry before the date
958
# '=' is match the first entry after, but still on the given date.
959
#
960
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
961
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
962
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
963
# May 13th, 2005 at 0:00
964
#
965
# So the proper way of saying 'give me all entries for today' is:
966
# -r {date:+today}:{date:-tomorrow}
967
# The default is '=' when not supplied
968
val = revision[5:]
969
match_style = '='
970
if val[:1] in ('+', '-', '='):
971
match_style = val[:1]
972
val = val[1:]
973
974
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
975
if val.lower() == 'yesterday':
976
dt = today - datetime.timedelta(days=1)
977
elif val.lower() == 'today':
978
dt = today
979
elif val.lower() == 'tomorrow':
980
dt = today + datetime.timedelta(days=1)
981
else:
982
import re
983
# This should be done outside the function to avoid recompiling it.
984
_date_re = re.compile(
985
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
986
r'(,|T)?\s*'
987
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
988
)
989
m = _date_re.match(val)
990
if not m or (not m.group('date') and not m.group('time')):
991
raise BzrError('Invalid revision date %r' % revision)
992
993
if m.group('date'):
994
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
995
else:
996
year, month, day = today.year, today.month, today.day
997
if m.group('time'):
998
hour = int(m.group('hour'))
999
minute = int(m.group('minute'))
1000
if m.group('second'):
1001
second = int(m.group('second'))
1002
else:
1003
second = 0
1004
else:
1005
hour, minute, second = 0,0,0
1006
1007
dt = datetime.datetime(year=year, month=month, day=day,
1008
hour=hour, minute=minute, second=second)
1009
first = dt
1010
last = None
1011
reversed = False
1012
if match_style == '-':
1013
reversed = True
1014
elif match_style == '=':
1015
last = dt + datetime.timedelta(days=1)
1016
1017
if reversed:
1018
for i in range(len(revs)-1, -1, -1):
1019
r = self.get_revision(revs[i])
1020
# TODO: Handle timezone.
1021
dt = datetime.datetime.fromtimestamp(r.timestamp)
1022
if first >= dt and (last is None or dt >= last):
1023
return i+1
1024
else:
1025
for i in range(len(revs)):
1026
r = self.get_revision(revs[i])
1027
# TODO: Handle timezone.
1028
dt = datetime.datetime.fromtimestamp(r.timestamp)
1029
if first <= dt and (last is None or dt <= last):
1030
return i+1
1031
REVISION_NAMESPACES['date:'] = _namespace_date
1032
1033
def revision_tree(self, revision_id):
1034
"""Return Tree for a revision on this branch.
1035
1036
`revision_id` may be None for the null revision, in which case
1037
an `EmptyTree` is returned."""
1038
# TODO: refactor this to use an existing revision object
1039
# so we don't need to read it in twice.
1040
if revision_id == None:
1041
return EmptyTree()
1042
else:
1043
inv = self.get_revision_inventory(revision_id)
1044
return RevisionTree(self.text_store, inv)
1045
1046
1047
def working_tree(self):
1048
"""Return a `Tree` for the working copy."""
1049
from workingtree import WorkingTree
1050
return WorkingTree(self.base, self.read_working_inventory())
1051
377
"""Pull in new perfect-fit revisions.
378
379
:param other: Another Branch to pull from
380
:param stop_revision: Updated until the given revision
381
:return: None
382
"""
383
raise NotImplementedError(self.update_revisions)
384
385
def revision_id_to_revno(self, revision_id):
386
"""Given a revision id, return its revno"""
387
if revision_id is None:
388
return 0
389
revision_id = osutils.safe_revision_id(revision_id)
390
history = self.revision_history()
391
try:
392
return history.index(revision_id) + 1
393
except ValueError:
394
raise bzrlib.errors.NoSuchRevision(self, revision_id)
395
396
def get_rev_id(self, revno, history=None):
397
"""Find the revision id of the specified revno."""
398
if revno == 0:
399
return None
400
if history is None:
401
history = self.revision_history()
402
if revno <= 0 or revno > len(history):
403
raise bzrlib.errors.NoSuchRevision(self, revno)
404
return history[revno - 1]
405
406
def pull(self, source, overwrite=False, stop_revision=None):
407
"""Mirror source into this branch.
408
409
This branch is considered to be 'local', having low latency.
410
411
:returns: PullResult instance
412
"""
413
raise NotImplementedError(self.pull)
414
415
def push(self, target, overwrite=False, stop_revision=None):
416
"""Mirror this branch into target.
417
418
This branch is considered to be 'local', having low latency.
419
"""
420
raise NotImplementedError(self.push)
1052
421
1053
422
def basis_tree(self):
1054
"""Return `Tree` object for last revision.
1055
1056
If there are no revisions yet, return an `EmptyTree`.
1057
"""
1058
r = self.last_patch()
1059
if r == None:
1060
return EmptyTree()
1061
else:
1062
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1063
1064
423
"""Return `Tree` object for last revision."""
424
return self.repository.revision_tree(self.last_revision())
1065
425
1066
426
def rename_one(self, from_rel, to_rel):
1067
427
"""Rename one file.
1068
428
1069
429
This can change the directory or the filename or both.
1070
430
"""
1071
self.lock_write()
1072
try:
1073
tree = self.working_tree()
1074
inv = tree.inventory
1075
if not tree.has_filename(from_rel):
1076
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1077
if tree.has_filename(to_rel):
1078
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1079
1080
file_id = inv.path2id(from_rel)
1081
if file_id == None:
1082
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1083
1084
if inv.path2id(to_rel):
1085
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1086
1087
to_dir, to_tail = os.path.split(to_rel)
1088
to_dir_id = inv.path2id(to_dir)
1089
if to_dir_id == None and to_dir != '':
1090
raise BzrError("can't determine destination directory id for %r" % to_dir)
1091
1092
mutter("rename_one:")
1093
mutter(" file_id {%s}" % file_id)
1094
mutter(" from_rel %r" % from_rel)
1095
mutter(" to_rel %r" % to_rel)
1096
mutter(" to_dir %r" % to_dir)
1097
mutter(" to_dir_id {%s}" % to_dir_id)
1098
1099
inv.rename(file_id, to_dir_id, to_tail)
1100
1101
print "%s => %s" % (from_rel, to_rel)
1102
1103
from_abs = self.abspath(from_rel)
1104
to_abs = self.abspath(to_rel)
1105
try:
1106
os.rename(from_abs, to_abs)
1107
except OSError, e:
1108
raise BzrError("failed to rename %r to %r: %s"
1109
% (from_abs, to_abs, e[1]),
1110
["rename rolled back"])
1111
1112
self._write_inventory(inv)
1113
finally:
1114
self.unlock()
1115
431
raise NotImplementedError(self.rename_one)
1116
432
1117
433
def move(self, from_paths, to_name):
1118
434
"""Rename files.
1124
440
1125
441
Note that to_name is only the last component of the new name;
1126
442
this doesn't change the directory.
1127
"""
1128
self.lock_write()
1129
try:
1130
## TODO: Option to move IDs only
1131
assert not isinstance(from_paths, basestring)
1132
tree = self.working_tree()
1133
inv = tree.inventory
1134
to_abs = self.abspath(to_name)
1135
if not isdir(to_abs):
1136
raise BzrError("destination %r is not a directory" % to_abs)
1137
if not tree.has_filename(to_name):
1138
raise BzrError("destination %r not in working directory" % to_abs)
1139
to_dir_id = inv.path2id(to_name)
1140
if to_dir_id == None and to_name != '':
1141
raise BzrError("destination %r is not a versioned directory" % to_name)
1142
to_dir_ie = inv[to_dir_id]
1143
if to_dir_ie.kind not in ('directory', 'root_directory'):
1144
raise BzrError("destination %r is not a directory" % to_abs)
1145
1146
to_idpath = inv.get_idpath(to_dir_id)
1147
1148
for f in from_paths:
1149
if not tree.has_filename(f):
1150
raise BzrError("%r does not exist in working tree" % f)
1151
f_id = inv.path2id(f)
1152
if f_id == None:
1153
raise BzrError("%r is not versioned" % f)
1154
name_tail = splitpath(f)[-1]
1155
dest_path = appendpath(to_name, name_tail)
1156
if tree.has_filename(dest_path):
1157
raise BzrError("destination %r already exists" % dest_path)
1158
if f_id in to_idpath:
1159
raise BzrError("can't move %r to a subdirectory of itself" % f)
1160
1161
# OK, so there's a race here, it's possible that someone will
1162
# create a file in this interval and then the rename might be
1163
# left half-done. But we should have caught most problems.
1164
1165
for f in from_paths:
1166
name_tail = splitpath(f)[-1]
1167
dest_path = appendpath(to_name, name_tail)
1168
print "%s => %s" % (f, dest_path)
1169
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1170
try:
1171
os.rename(self.abspath(f), self.abspath(dest_path))
1172
except OSError, e:
1173
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1174
["rename rolled back"])
1175
1176
self._write_inventory(inv)
1177
finally:
1178
self.unlock()
1179
1180
1181
def revert(self, filenames, old_tree=None, backups=True):
1182
"""Restore selected files to the versions from a previous tree.
1183
1184
backups
1185
If true (default) backups are made of files before
1186
they're renamed.
1187
"""
1188
from bzrlib.errors import NotVersionedError, BzrError
1189
from bzrlib.atomicfile import AtomicFile
1190
from bzrlib.osutils import backup_file
1191
1192
inv = self.read_working_inventory()
1193
if old_tree is None:
1194
old_tree = self.basis_tree()
1195
old_inv = old_tree.inventory
1196
1197
nids = []
1198
for fn in filenames:
1199
file_id = inv.path2id(fn)
1200
if not file_id:
1201
raise NotVersionedError("not a versioned file", fn)
1202
if not old_inv.has_id(file_id):
1203
raise BzrError("file not present in old tree", fn, file_id)
1204
nids.append((fn, file_id))
1205
1206
# TODO: Rename back if it was previously at a different location
1207
1208
# TODO: If given a directory, restore the entire contents from
1209
# the previous version.
1210
1211
# TODO: Make a backup to a temporary file.
1212
1213
# TODO: If the file previously didn't exist, delete it?
1214
for fn, file_id in nids:
1215
backup_file(fn)
1216
1217
f = AtomicFile(fn, 'wb')
1218
try:
1219
f.write(old_tree.get_file(file_id).read())
1220
f.commit()
1221
finally:
1222
f.close()
1223
1224
1225
def pending_merges(self):
1226
"""Return a list of pending merges.
1227
1228
These are revisions that have been merged into the working
1229
directory but not yet committed.
1230
"""
1231
cfn = self.controlfilename('pending-merges')
1232
if not os.path.exists(cfn):
1233
return []
1234
p = []
1235
for l in self.controlfile('pending-merges', 'r').readlines():
1236
p.append(l.rstrip('\n'))
1237
return p
1238
1239
1240
def add_pending_merge(self, revision_id):
1241
from bzrlib.revision import validate_revision_id
1242
1243
validate_revision_id(revision_id)
1244
1245
p = self.pending_merges()
1246
if revision_id in p:
1247
return
1248
p.append(revision_id)
1249
self.set_pending_merges(p)
1250
1251
1252
def set_pending_merges(self, rev_list):
1253
from bzrlib.atomicfile import AtomicFile
1254
self.lock_write()
1255
try:
1256
f = AtomicFile(self.controlfilename('pending-merges'))
1257
try:
1258
for l in rev_list:
1259
print >>f, l
1260
f.commit()
1261
finally:
1262
f.close()
1263
finally:
1264
self.unlock()
1265
1266
1267
1268
class ScratchBranch(Branch):
1269
"""Special test class: a branch that cleans up after itself.
1270
1271
>>> b = ScratchBranch()
1272
>>> isdir(b.base)
1273
True
1274
>>> bd = b.base
1275
>>> b.destroy()
1276
>>> isdir(bd)
1277
False
1278
"""
1279
def __init__(self, files=[], dirs=[], base=None):
1280
"""Make a test branch.
1281
1282
This creates a temporary directory and runs init-tree in it.
1283
1284
If any files are listed, they are created in the working copy.
1285
"""
1286
from tempfile import mkdtemp
1287
init = False
1288
if base is None:
1289
base = mkdtemp()
1290
init = True
1291
Branch.__init__(self, base, init=init)
1292
for d in dirs:
1293
os.mkdir(self.abspath(d))
1294
1295
for f in files:
1296
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1297
1298
1299
def clone(self):
1300
"""
1301
>>> orig = ScratchBranch(files=["file1", "file2"])
1302
>>> clone = orig.clone()
1303
>>> os.path.samefile(orig.base, clone.base)
1304
False
1305
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1306
True
1307
"""
1308
from shutil import copytree
1309
from tempfile import mkdtemp
1310
base = mkdtemp()
1311
os.rmdir(base)
1312
copytree(self.base, base, symlinks=True)
1313
return ScratchBranch(base=base)
1314
1315
def __del__(self):
1316
self.destroy()
1317
1318
def destroy(self):
1319
"""Destroy the test branch, removing the scratch directory."""
1320
from shutil import rmtree
1321
try:
1322
if self.base:
1323
mutter("delete ScratchBranch %s" % self.base)
1324
rmtree(self.base)
1325
except OSError, e:
1326
# Work around for shutil.rmtree failing on Windows when
1327
# readonly files are encountered
1328
mutter("hit exception in destroying ScratchBranch: %s" % e)
1329
for root, dirs, files in os.walk(self.base, topdown=False):
1330
for name in files:
1331
os.chmod(os.path.join(root, name), 0700)
1332
rmtree(self.base)
1333
self.base = None
1334
1335
1336
1337
######################################################################
1338
# predicates
1339
1340
1341
def is_control_file(filename):
1342
## FIXME: better check
1343
filename = os.path.normpath(filename)
1344
while filename != '':
1345
head, tail = os.path.split(filename)
1346
## mutter('check %r for control file' % ((head, tail), ))
1347
if tail == bzrlib.BZRDIR:
443
444
This returns a list of (from_path, to_path) pairs for each
445
entry that is moved.
446
"""
447
raise NotImplementedError(self.move)
448
449
def get_parent(self):
450
"""Return the parent location of the branch.
451
452
This is the default location for push/pull/missing. The usual
453
pattern is that the user can override it by specifying a
454
location.
455
"""
456
raise NotImplementedError(self.get_parent)
457
458
def get_submit_branch(self):
459
"""Return the submit location of the branch.
460
461
This is the default location for bundle. The usual
462
pattern is that the user can override it by specifying a
463
location.
464
"""
465
return self.get_config().get_user_option('submit_branch')
466
467
def set_submit_branch(self, location):
468
"""Return the submit location of the branch.
469
470
This is the default location for bundle. The usual
471
pattern is that the user can override it by specifying a
472
location.
473
"""
474
self.get_config().set_user_option('submit_branch', location)
475
476
def get_push_location(self):
477
"""Return the None or the location to push this branch to."""
478
raise NotImplementedError(self.get_push_location)
479
480
def set_push_location(self, location):
481
"""Set a new push location for this branch."""
482
raise NotImplementedError(self.set_push_location)
483
484
def set_parent(self, url):
485
raise NotImplementedError(self.set_parent)
486
487
@needs_write_lock
488
def update(self):
489
"""Synchronise this branch with the master branch if any.
490
491
:return: None or the last_revision pivoted out during the update.
492
"""
493
return None
494
495
def check_revno(self, revno):
496
"""\
497
Check whether a revno corresponds to any revision.
498
Zero (the NULL revision) is considered valid.
499
"""
500
if revno != 0:
501
self.check_real_revno(revno)
502
503
def check_real_revno(self, revno):
504
"""\
505
Check whether a revno corresponds to a real revision.
506
Zero (the NULL revision) is considered invalid
507
"""
508
if revno < 1 or revno > self.revno():
509
raise InvalidRevisionNumber(revno)
510
511
@needs_read_lock
512
def clone(self, *args, **kwargs):
513
"""Clone this branch into to_bzrdir preserving all semantic values.
514
515
revision_id: if not None, the revision history in the new branch will
516
be truncated to end with revision_id.
517
"""
518
# for API compatibility, until 0.8 releases we provide the old api:
519
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
520
# after 0.8 releases, the *args and **kwargs should be changed:
521
# def clone(self, to_bzrdir, revision_id=None):
522
if (kwargs.get('to_location', None) or
523
kwargs.get('revision', None) or
524
kwargs.get('basis_branch', None) or
525
(len(args) and isinstance(args[0], basestring))):
526
# backwards compatibility api:
527
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
528
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
529
# get basis_branch
530
if len(args) > 2:
531
basis_branch = args[2]
532
else:
533
basis_branch = kwargs.get('basis_branch', None)
534
if basis_branch:
535
basis = basis_branch.bzrdir
536
else:
537
basis = None
538
# get revision
539
if len(args) > 1:
540
revision_id = args[1]
541
else:
542
revision_id = kwargs.get('revision', None)
543
# get location
544
if len(args):
545
url = args[0]
546
else:
547
# no default to raise if not provided.
548
url = kwargs.get('to_location')
549
return self.bzrdir.clone(url,
550
revision_id=revision_id,
551
basis=basis).open_branch()
552
# new cleaner api.
553
# generate args by hand
554
if len(args) > 1:
555
revision_id = args[1]
556
else:
557
revision_id = kwargs.get('revision_id', None)
558
if len(args):
559
to_bzrdir = args[0]
560
else:
561
# no default to raise if not provided.
562
to_bzrdir = kwargs.get('to_bzrdir')
563
result = self._format.initialize(to_bzrdir)
564
self.copy_content_into(result, revision_id=revision_id)
565
return result
566
567
@needs_read_lock
568
def sprout(self, to_bzrdir, revision_id=None):
569
"""Create a new line of development from the branch, into to_bzrdir.
570
571
revision_id: if not None, the revision history in the new branch will
572
be truncated to end with revision_id.
573
"""
574
result = self._format.initialize(to_bzrdir)
575
self.copy_content_into(result, revision_id=revision_id)
576
result.set_parent(self.bzrdir.root_transport.base)
577
return result
578
579
def _synchronize_history(self, destination, revision_id):
580
"""Synchronize last revision and revision history between branches.
581
582
This version is most efficient when the destination is also a
583
BzrBranch5, but works for BzrBranch6 as long as the revision
584
history is the true lefthand parent history, and all of the revisions
585
are in the destination's repository. If not, set_revision_history
586
will fail.
587
588
:param destination: The branch to copy the history into
589
:param revision_id: The revision-id to truncate history at. May
590
be None to copy complete history.
591
"""
592
new_history = self.revision_history()
593
if revision_id is not None:
594
revision_id = osutils.safe_revision_id(revision_id)
595
try:
596
new_history = new_history[:new_history.index(revision_id) + 1]
597
except ValueError:
598
rev = self.repository.get_revision(revision_id)
599
new_history = rev.get_history(self.repository)[1:]
600
destination.set_revision_history(new_history)
601
602
@needs_read_lock
603
def copy_content_into(self, destination, revision_id=None):
604
"""Copy the content of self into destination.
605
606
revision_id: if not None, the revision history in the new branch will
607
be truncated to end with revision_id.
608
"""
609
self._synchronize_history(destination, revision_id)
610
try:
611
parent = self.get_parent()
612
except errors.InaccessibleParent, e:
613
mutter('parent was not accessible to copy: %s', e)
614
else:
615
if parent:
616
destination.set_parent(parent)
617
618
@needs_read_lock
619
def check(self):
620
"""Check consistency of the branch.
621
622
In particular this checks that revisions given in the revision-history
623
do actually match up in the revision graph, and that they're all
624
present in the repository.
625
626
Callers will typically also want to check the repository.
627
628
:return: A BranchCheckResult.
629
"""
630
mainline_parent_id = None
631
for revision_id in self.revision_history():
632
try:
633
revision = self.repository.get_revision(revision_id)
634
except errors.NoSuchRevision, e:
635
raise errors.BzrCheckError("mainline revision {%s} not in repository"
636
% revision_id)
637
# In general the first entry on the revision history has no parents.
638
# But it's not illegal for it to have parents listed; this can happen
639
# in imports from Arch when the parents weren't reachable.
640
if mainline_parent_id is not None:
641
if mainline_parent_id not in revision.parent_ids:
642
raise errors.BzrCheckError("previous revision {%s} not listed among "
643
"parents of {%s}"
644
% (mainline_parent_id, revision_id))
645
mainline_parent_id = revision_id
646
return BranchCheckResult(self)
647
648
def _get_checkout_format(self):
649
"""Return the most suitable metadir for a checkout of this branch.
650
Weaves are used if this branch's repostory uses weaves.
651
"""
652
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
653
from bzrlib.repofmt import weaverepo
654
format = bzrdir.BzrDirMetaFormat1()
655
format.repository_format = weaverepo.RepositoryFormat7()
656
else:
657
format = self.repository.bzrdir.cloning_metadir()
658
format.branch_format = self._format
659
return format
660
661
def create_checkout(self, to_location, revision_id=None,
662
lightweight=False):
663
"""Create a checkout of a branch.
664
665
:param to_location: The url to produce the checkout at
666
:param revision_id: The revision to check out
667
:param lightweight: If True, produce a lightweight checkout, otherwise,
668
produce a bound branch (heavyweight checkout)
669
:return: The tree of the created checkout
670
"""
671
t = transport.get_transport(to_location)
672
try:
673
t.mkdir('.')
674
except errors.FileExists:
675
pass
676
if lightweight:
677
checkout = bzrdir.BzrDirMetaFormat1().initialize_on_transport(t)
678
BranchReferenceFormat().initialize(checkout, self)
679
else:
680
format = self._get_checkout_format()
681
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
682
to_location, force_new_tree=False, format=format)
683
checkout = checkout_branch.bzrdir
684
checkout_branch.bind(self)
685
# pull up to the specified revision_id to set the initial
686
# branch tip correctly, and seed it with history.
687
checkout_branch.pull(self, stop_revision=revision_id)
688
return checkout.create_workingtree(revision_id)
689
690
def supports_tags(self):
691
return self._format.supports_tags()
692
693
694
class BranchFormat(object):
695
"""An encapsulation of the initialization and open routines for a format.
696
697
Formats provide three things:
698
* An initialization routine,
699
* a format string,
700
* an open routine.
701
702
Formats are placed in an dict by their format string for reference
703
during branch opening. Its not required that these be instances, they
704
can be classes themselves with class methods - it simply depends on
705
whether state is needed for a given format or not.
706
707
Once a format is deprecated, just deprecate the initialize and open
708
methods on the format class. Do not deprecate the object, as the
709
object will be created every time regardless.
710
"""
711
712
_default_format = None
713
"""The default format used for new branches."""
714
715
_formats = {}
716
"""The known formats."""
717
718
@classmethod
719
def find_format(klass, a_bzrdir):
720
"""Return the format for the branch object in a_bzrdir."""
721
try:
722
transport = a_bzrdir.get_branch_transport(None)
723
format_string = transport.get("format").read()
724
return klass._formats[format_string]
725
except NoSuchFile:
726
raise NotBranchError(path=transport.base)
727
except KeyError:
728
raise errors.UnknownFormatError(format=format_string)
729
730
@classmethod
731
def get_default_format(klass):
732
"""Return the current default format."""
733
return klass._default_format
734
735
def get_format_string(self):
736
"""Return the ASCII format string that identifies this format."""
737
raise NotImplementedError(self.get_format_string)
738
739
def get_format_description(self):
740
"""Return the short format description for this format."""
741
raise NotImplementedError(self.get_format_description)
742
743
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
744
set_format=True):
745
"""Initialize a branch in a bzrdir, with specified files
746
747
:param a_bzrdir: The bzrdir to initialize the branch in
748
:param utf8_files: The files to create as a list of
749
(filename, content) tuples
750
:param set_format: If True, set the format with
751
self.get_format_string. (BzrBranch4 has its format set
752
elsewhere)
753
:return: a branch in this format
754
"""
755
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
756
branch_transport = a_bzrdir.get_branch_transport(self)
757
lock_map = {
758
'metadir': ('lock', lockdir.LockDir),
759
'branch4': ('branch-lock', lockable_files.TransportLock),
760
}
761
lock_name, lock_class = lock_map[lock_type]
762
control_files = lockable_files.LockableFiles(branch_transport,
763
lock_name, lock_class)
764
control_files.create_lock()
765
control_files.lock_write()
766
if set_format:
767
control_files.put_utf8('format', self.get_format_string())
768
try:
769
for file, content in utf8_files:
770
control_files.put_utf8(file, content)
771
finally:
772
control_files.unlock()
773
return self.open(a_bzrdir, _found=True)
774
775
def initialize(self, a_bzrdir):
776
"""Create a branch of this format in a_bzrdir."""
777
raise NotImplementedError(self.initialize)
778
779
def is_supported(self):
780
"""Is this format supported?
781
782
Supported formats can be initialized and opened.
783
Unsupported formats may not support initialization or committing or
784
some other features depending on the reason for not being supported.
785
"""
786
return True
787
788
def open(self, a_bzrdir, _found=False):
789
"""Return the branch object for a_bzrdir
790
791
_found is a private parameter, do not use it. It is used to indicate
792
if format probing has already be done.
793
"""
794
raise NotImplementedError(self.open)
795
796
@classmethod
797
def register_format(klass, format):
798
klass._formats[format.get_format_string()] = format
799
800
@classmethod
801
def set_default_format(klass, format):
802
klass._default_format = format
803
804
@classmethod
805
def unregister_format(klass, format):
806
assert klass._formats[format.get_format_string()] is format
807
del klass._formats[format.get_format_string()]
808
809
def __str__(self):
810
return self.get_format_string().rstrip()
811
812
def supports_tags(self):
813
"""True if this format supports tags stored in the branch"""
814
return False # by default
815
816
# XXX: Probably doesn't really belong here -- mbp 20070212
817
def _initialize_control_files(self, a_bzrdir, utf8_files, lock_filename,
818
lock_class):
819
branch_transport = a_bzrdir.get_branch_transport(self)
820
control_files = lockable_files.LockableFiles(branch_transport,
821
lock_filename, lock_class)
822
control_files.create_lock()
823
control_files.lock_write()
824
try:
825
for filename, content in utf8_files:
826
control_files.put_utf8(filename, content)
827
finally:
828
control_files.unlock()
829
830
831
class BranchHooks(dict):
832
"""A dictionary mapping hook name to a list of callables for branch hooks.
833
834
e.g. ['set_rh'] Is the list of items to be called when the
835
set_revision_history function is invoked.
836
"""
837
838
def __init__(self):
839
"""Create the default hooks.
840
841
These are all empty initially, because by default nothing should get
842
notified.
843
"""
844
dict.__init__(self)
845
# Introduced in 0.15:
846
# invoked whenever the revision history has been set
847
# with set_revision_history. The api signature is
848
# (branch, revision_history), and the branch will
849
# be write-locked.
850
self['set_rh'] = []
851
# invoked after a push operation completes.
852
# the api signature is
853
# (push_result)
854
# containing the members
855
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
856
# where local is the local branch or None, master is the target
857
# master branch, and the rest should be self explanatory. The source
858
# is read locked and the target branches write locked. Source will
859
# be the local low-latency branch.
860
self['post_push'] = []
861
# invoked after a pull operation completes.
862
# the api signature is
863
# (pull_result)
864
# containing the members
865
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
866
# where local is the local branch or None, master is the target
867
# master branch, and the rest should be self explanatory. The source
868
# is read locked and the target branches write locked. The local
869
# branch is the low-latency branch.
870
self['post_pull'] = []
871
# invoked after a commit operation completes.
872
# the api signature is
873
# (local, master, old_revno, old_revid, new_revno, new_revid)
874
# old_revid is NULL_REVISION for the first commit to a branch.
875
self['post_commit'] = []
876
# invoked after a uncommit operation completes.
877
# the api signature is
878
# (local, master, old_revno, old_revid, new_revno, new_revid) where
879
# local is the local branch or None, master is the target branch,
880
# and an empty branch recieves new_revno of 0, new_revid of None.
881
self['post_uncommit'] = []
882
883
def install_hook(self, hook_name, a_callable):
884
"""Install a_callable in to the hook hook_name.
885
886
:param hook_name: A hook name. See the __init__ method of BranchHooks
887
for the complete list of hooks.
888
:param a_callable: The callable to be invoked when the hook triggers.
889
The exact signature will depend on the hook - see the __init__
890
method of BranchHooks for details on each hook.
891
"""
892
try:
893
self[hook_name].append(a_callable)
894
except KeyError:
895
raise errors.UnknownHook('branch', hook_name)
896
897
898
# install the default hooks into the Branch class.
899
Branch.hooks = BranchHooks()
900
901
902
class BzrBranchFormat4(BranchFormat):
903
"""Bzr branch format 4.
904
905
This format has:
906
- a revision-history file.
907
- a branch-lock lock file [ to be shared with the bzrdir ]
908
"""
909
910
def get_format_description(self):
911
"""See BranchFormat.get_format_description()."""
912
return "Branch format 4"
913
914
def initialize(self, a_bzrdir):
915
"""Create a branch of this format in a_bzrdir."""
916
utf8_files = [('revision-history', ''),
917
('branch-name', ''),
918
]
919
return self._initialize_helper(a_bzrdir, utf8_files,
920
lock_type='branch4', set_format=False)
921
922
def __init__(self):
923
super(BzrBranchFormat4, self).__init__()
924
self._matchingbzrdir = bzrdir.BzrDirFormat6()
925
926
def open(self, a_bzrdir, _found=False):
927
"""Return the branch object for a_bzrdir
928
929
_found is a private parameter, do not use it. It is used to indicate
930
if format probing has already be done.
931
"""
932
if not _found:
933
# we are being called directly and must probe.
934
raise NotImplementedError
935
return BzrBranch(_format=self,
936
_control_files=a_bzrdir._control_files,
937
a_bzrdir=a_bzrdir,
938
_repository=a_bzrdir.open_repository())
939
940
def __str__(self):
941
return "Bazaar-NG branch format 4"
942
943
944
class BzrBranchFormat5(BranchFormat):
945
"""Bzr branch format 5.
946
947
This format has:
948
- a revision-history file.
949
- a format string
950
- a lock dir guarding the branch itself
951
- all of this stored in a branch/ subdirectory
952
- works with shared repositories.
953
954
This format is new in bzr 0.8.
955
"""
956
957
def get_format_string(self):
958
"""See BranchFormat.get_format_string()."""
959
return "Bazaar-NG branch format 5\n"
960
961
def get_format_description(self):
962
"""See BranchFormat.get_format_description()."""
963
return "Branch format 5"
964
965
def initialize(self, a_bzrdir):
966
"""Create a branch of this format in a_bzrdir."""
967
utf8_files = [('revision-history', ''),
968
('branch-name', ''),
969
]
970
return self._initialize_helper(a_bzrdir, utf8_files)
971
972
def __init__(self):
973
super(BzrBranchFormat5, self).__init__()
974
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
975
976
def open(self, a_bzrdir, _found=False):
977
"""Return the branch object for a_bzrdir
978
979
_found is a private parameter, do not use it. It is used to indicate
980
if format probing has already be done.
981
"""
982
if not _found:
983
format = BranchFormat.find_format(a_bzrdir)
984
assert format.__class__ == self.__class__
985
transport = a_bzrdir.get_branch_transport(None)
986
control_files = lockable_files.LockableFiles(transport, 'lock',
987
lockdir.LockDir)
988
return BzrBranch5(_format=self,
989
_control_files=control_files,
990
a_bzrdir=a_bzrdir,
991
_repository=a_bzrdir.find_repository())
992
993
994
class BzrBranchFormat6(BzrBranchFormat5):
995
"""Branch format with last-revision
996
997
Unlike previous formats, this has no explicit revision history. Instead,
998
this just stores the last-revision, and the left-hand history leading
999
up to there is the history.
1000
1001
This format was introduced in bzr 0.15
1002
"""
1003
1004
def get_format_string(self):
1005
"""See BranchFormat.get_format_string()."""
1006
return "Bazaar-NG branch format 6\n"
1007
1008
def get_format_description(self):
1009
"""See BranchFormat.get_format_description()."""
1010
return "Branch format 6"
1011
1012
def initialize(self, a_bzrdir):
1013
"""Create a branch of this format in a_bzrdir."""
1014
utf8_files = [('last-revision', '0 null:\n'),
1015
('branch-name', ''),
1016
('branch.conf', ''),
1017
('tags', ''),
1018
]
1019
return self._initialize_helper(a_bzrdir, utf8_files)
1020
1021
def open(self, a_bzrdir, _found=False):
1022
"""Return the branch object for a_bzrdir
1023
1024
_found is a private parameter, do not use it. It is used to indicate
1025
if format probing has already be done.
1026
"""
1027
if not _found:
1028
format = BranchFormat.find_format(a_bzrdir)
1029
assert format.__class__ == self.__class__
1030
transport = a_bzrdir.get_branch_transport(None)
1031
control_files = lockable_files.LockableFiles(transport, 'lock',
1032
lockdir.LockDir)
1033
return BzrBranch6(_format=self,
1034
_control_files=control_files,
1035
a_bzrdir=a_bzrdir,
1036
_repository=a_bzrdir.find_repository())
1037
1038
def supports_tags(self):
1039
return True
1040
1041
1042
class BranchReferenceFormat(BranchFormat):
1043
"""Bzr branch reference format.
1044
1045
Branch references are used in implementing checkouts, they
1046
act as an alias to the real branch which is at some other url.
1047
1048
This format has:
1049
- A location file
1050
- a format string
1051
"""
1052
1053
def get_format_string(self):
1054
"""See BranchFormat.get_format_string()."""
1055
return "Bazaar-NG Branch Reference Format 1\n"
1056
1057
def get_format_description(self):
1058
"""See BranchFormat.get_format_description()."""
1059
return "Checkout reference format 1"
1060
1061
def initialize(self, a_bzrdir, target_branch=None):
1062
"""Create a branch of this format in a_bzrdir."""
1063
if target_branch is None:
1064
# this format does not implement branch itself, thus the implicit
1065
# creation contract must see it as uninitializable
1066
raise errors.UninitializableFormat(self)
1067
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1068
branch_transport = a_bzrdir.get_branch_transport(self)
1069
branch_transport.put_bytes('location',
1070
target_branch.bzrdir.root_transport.base)
1071
branch_transport.put_bytes('format', self.get_format_string())
1072
return self.open(a_bzrdir, _found=True)
1073
1074
def __init__(self):
1075
super(BranchReferenceFormat, self).__init__()
1076
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1077
1078
def _make_reference_clone_function(format, a_branch):
1079
"""Create a clone() routine for a branch dynamically."""
1080
def clone(to_bzrdir, revision_id=None):
1081
"""See Branch.clone()."""
1082
return format.initialize(to_bzrdir, a_branch)
1083
# cannot obey revision_id limits when cloning a reference ...
1084
# FIXME RBC 20060210 either nuke revision_id for clone, or
1085
# emit some sort of warning/error to the caller ?!
1086
return clone
1087
1088
def open(self, a_bzrdir, _found=False):
1089
"""Return the branch that the branch reference in a_bzrdir points at.
1090
1091
_found is a private parameter, do not use it. It is used to indicate
1092
if format probing has already be done.
1093
"""
1094
if not _found:
1095
format = BranchFormat.find_format(a_bzrdir)
1096
assert format.__class__ == self.__class__
1097
transport = a_bzrdir.get_branch_transport(None)
1098
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
1099
result = real_bzrdir.open_branch()
1100
# this changes the behaviour of result.clone to create a new reference
1101
# rather than a copy of the content of the branch.
1102
# I did not use a proxy object because that needs much more extensive
1103
# testing, and we are only changing one behaviour at the moment.
1104
# If we decide to alter more behaviours - i.e. the implicit nickname
1105
# then this should be refactored to introduce a tested proxy branch
1106
# and a subclass of that for use in overriding clone() and ....
1107
# - RBC 20060210
1108
result.clone = self._make_reference_clone_function(result)
1109
return result
1110
1111
1112
# formats which have no format string are not discoverable
1113
# and not independently creatable, so are not registered.
1114
__default_format = BzrBranchFormat5()
1115
BranchFormat.register_format(__default_format)
1116
BranchFormat.register_format(BranchReferenceFormat())
1117
BranchFormat.register_format(BzrBranchFormat6())
1118
BranchFormat.set_default_format(__default_format)
1119
_legacy_formats = [BzrBranchFormat4(),
1120
]
1121
1122
class BzrBranch(Branch):
1123
"""A branch stored in the actual filesystem.
1124
1125
Note that it's "local" in the context of the filesystem; it doesn't
1126
really matter if it's on an nfs/smb/afs/coda/... share, as long as
1127
it's writable, and can be accessed via the normal filesystem API.
1128
"""
1129
1130
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
1131
relax_version_check=DEPRECATED_PARAMETER, _format=None,
1132
_control_files=None, a_bzrdir=None, _repository=None):
1133
"""Create new branch object at a particular location.
1134
1135
transport -- A Transport object, defining how to access files.
1136
1137
init -- If True, create new control files in a previously
1138
unversioned directory. If False, the branch must already
1139
be versioned.
1140
1141
relax_version_check -- If true, the usual check for the branch
1142
version is not applied. This is intended only for
1143
upgrade/recovery type use; it's not guaranteed that
1144
all operations will work on old format branches.
1145
"""
1146
Branch.__init__(self)
1147
if a_bzrdir is None:
1148
self.bzrdir = bzrdir.BzrDir.open(transport.base)
1149
else:
1150
self.bzrdir = a_bzrdir
1151
# self._transport used to point to the directory containing the
1152
# control directory, but was not used - now it's just the transport
1153
# for the branch control files. mbp 20070212
1154
self._base = self.bzrdir.transport.clone('..').base
1155
self._format = _format
1156
if _control_files is None:
1157
raise ValueError('BzrBranch _control_files is None')
1158
self.control_files = _control_files
1159
self._transport = _control_files._transport
1160
if deprecated_passed(init):
1161
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
1162
"deprecated as of bzr 0.8. Please use Branch.create().",
1163
DeprecationWarning,
1164
stacklevel=2)
1165
if init:
1166
# this is slower than before deprecation, oh well never mind.
1167
# -> its deprecated.
1168
self._initialize(transport.base)
1169
self._check_format(_format)
1170
if deprecated_passed(relax_version_check):
1171
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
1172
"relax_version_check parameter is deprecated as of bzr 0.8. "
1173
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
1174
"open() method.",
1175
DeprecationWarning,
1176
stacklevel=2)
1177
if (not relax_version_check
1178
and not self._format.is_supported()):
1179
raise errors.UnsupportedFormatError(format=fmt)
1180
if deprecated_passed(transport):
1181
warn("BzrBranch.__init__(transport=XXX...): The transport "
1182
"parameter is deprecated as of bzr 0.8. "
1183
"Please use Branch.open, or bzrdir.open_branch().",
1184
DeprecationWarning,
1185
stacklevel=2)
1186
self.repository = _repository
1187
1188
def __str__(self):
1189
return '%s(%r)' % (self.__class__.__name__, self.base)
1190
1191
__repr__ = __str__
1192
1193
def _get_base(self):
1194
"""Returns the directory containing the control directory."""
1195
return self._base
1196
1197
base = property(_get_base, doc="The URL for the root of this branch.")
1198
1199
def _finish_transaction(self):
1200
"""Exit the current transaction."""
1201
return self.control_files._finish_transaction()
1202
1203
def get_transaction(self):
1204
"""Return the current active transaction.
1205
1206
If no transaction is active, this returns a passthrough object
1207
for which all data is immediately flushed and no caching happens.
1208
"""
1209
# this is an explicit function so that we can do tricky stuff
1210
# when the storage in rev_storage is elsewhere.
1211
# we probably need to hook the two 'lock a location' and
1212
# 'have a transaction' together more delicately, so that
1213
# we can have two locks (branch and storage) and one transaction
1214
# ... and finishing the transaction unlocks both, but unlocking
1215
# does not. - RBC 20051121
1216
return self.control_files.get_transaction()
1217
1218
def _set_transaction(self, transaction):
1219
"""Set a new active transaction."""
1220
return self.control_files._set_transaction(transaction)
1221
1222
def abspath(self, name):
1223
"""See Branch.abspath."""
1224
return self.control_files._transport.abspath(name)
1225
1226
def _check_format(self, format):
1227
"""Identify the branch format if needed.
1228
1229
The format is stored as a reference to the format object in
1230
self._format for code that needs to check it later.
1231
1232
The format parameter is either None or the branch format class
1233
used to open this branch.
1234
1235
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
1236
"""
1237
if format is None:
1238
format = BranchFormat.find_format(self.bzrdir)
1239
self._format = format
1240
mutter("got branch format %s", self._format)
1241
1242
@needs_read_lock
1243
def get_root_id(self):
1244
"""See Branch.get_root_id."""
1245
tree = self.repository.revision_tree(self.last_revision())
1246
return tree.inventory.root.file_id
1247
1248
def is_locked(self):
1249
return self.control_files.is_locked()
1250
1251
def lock_write(self):
1252
self.repository.lock_write()
1253
try:
1254
self.control_files.lock_write()
1255
except:
1256
self.repository.unlock()
1257
raise
1258
1259
def lock_read(self):
1260
self.repository.lock_read()
1261
try:
1262
self.control_files.lock_read()
1263
except:
1264
self.repository.unlock()
1265
raise
1266
1267
def unlock(self):
1268
# TODO: test for failed two phase locks. This is known broken.
1269
try:
1270
self.control_files.unlock()
1271
finally:
1272
self.repository.unlock()
1273
1274
def peek_lock_mode(self):
1275
if self.control_files._lock_count == 0:
1276
return None
1277
else:
1278
return self.control_files._lock_mode
1279
1280
def get_physical_lock_status(self):
1281
return self.control_files.get_physical_lock_status()
1282
1283
@needs_read_lock
1284
def print_file(self, file, revision_id):
1285
"""See Branch.print_file."""
1286
return self.repository.print_file(file, revision_id)
1287
1288
@needs_write_lock
1289
def append_revision(self, *revision_ids):
1290
"""See Branch.append_revision."""
1291
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1292
for revision_id in revision_ids:
1293
_mod_revision.check_not_reserved_id(revision_id)
1294
mutter("add {%s} to revision-history" % revision_id)
1295
rev_history = self.revision_history()
1296
rev_history.extend(revision_ids)
1297
self.set_revision_history(rev_history)
1298
1299
def _write_revision_history(self, history):
1300
"""Factored out of set_revision_history.
1301
1302
This performs the actual writing to disk.
1303
It is intended to be called by BzrBranch5.set_revision_history."""
1304
self.control_files.put_bytes(
1305
'revision-history', '\n'.join(history))
1306
1307
@needs_write_lock
1308
def set_revision_history(self, rev_history):
1309
"""See Branch.set_revision_history."""
1310
rev_history = [osutils.safe_revision_id(r) for r in rev_history]
1311
self._write_revision_history(rev_history)
1312
transaction = self.get_transaction()
1313
history = transaction.map.find_revision_history()
1314
if history is not None:
1315
# update the revision history in the identity map.
1316
history[:] = list(rev_history)
1317
# this call is disabled because revision_history is
1318
# not really an object yet, and the transaction is for objects.
1319
# transaction.register_dirty(history)
1320
else:
1321
transaction.map.add_revision_history(rev_history)
1322
# this call is disabled because revision_history is
1323
# not really an object yet, and the transaction is for objects.
1324
# transaction.register_clean(history)
1325
for hook in Branch.hooks['set_rh']:
1326
hook(self, rev_history)
1327
1328
@needs_write_lock
1329
def set_last_revision_info(self, revno, revision_id):
1330
revision_id = osutils.safe_revision_id(revision_id)
1331
history = self._lefthand_history(revision_id)
1332
assert len(history) == revno, '%d != %d' % (len(history), revno)
1333
self.set_revision_history(history)
1334
1335
def _gen_revision_history(self):
1336
history = self.control_files.get('revision-history').read().split('\n')
1337
if history[-1:] == ['']:
1338
# There shouldn't be a trailing newline, but just in case.
1339
history.pop()
1340
return history
1341
1342
@needs_read_lock
1343
def revision_history(self):
1344
"""See Branch.revision_history."""
1345
transaction = self.get_transaction()
1346
history = transaction.map.find_revision_history()
1347
if history is not None:
1348
# mutter("cache hit for revision-history in %s", self)
1349
return list(history)
1350
history = self._gen_revision_history()
1351
transaction.map.add_revision_history(history)
1352
# this call is disabled because revision_history is
1353
# not really an object yet, and the transaction is for objects.
1354
# transaction.register_clean(history, precious=True)
1355
return list(history)
1356
1357
def _lefthand_history(self, revision_id, last_rev=None,
1358
other_branch=None):
1359
# stop_revision must be a descendant of last_revision
1360
stop_graph = self.repository.get_revision_graph(revision_id)
1361
if last_rev is not None and last_rev not in stop_graph:
1362
# our previous tip is not merged into stop_revision
1363
raise errors.DivergedBranches(self, other_branch)
1364
# make a new revision history from the graph
1365
current_rev_id = revision_id
1366
new_history = []
1367
while current_rev_id not in (None, _mod_revision.NULL_REVISION):
1368
new_history.append(current_rev_id)
1369
current_rev_id_parents = stop_graph[current_rev_id]
1370
try:
1371
current_rev_id = current_rev_id_parents[0]
1372
except IndexError:
1373
current_rev_id = None
1374
new_history.reverse()
1375
return new_history
1376
1377
@needs_write_lock
1378
def generate_revision_history(self, revision_id, last_rev=None,
1379
other_branch=None):
1380
"""Create a new revision history that will finish with revision_id.
1381
1382
:param revision_id: the new tip to use.
1383
:param last_rev: The previous last_revision. If not None, then this
1384
must be a ancestory of revision_id, or DivergedBranches is raised.
1385
:param other_branch: The other branch that DivergedBranches should
1386
raise with respect to.
1387
"""
1388
revision_id = osutils.safe_revision_id(revision_id)
1389
self.set_revision_history(self._lefthand_history(revision_id,
1390
last_rev, other_branch))
1391
1392
@needs_write_lock
1393
def update_revisions(self, other, stop_revision=None):
1394
"""See Branch.update_revisions."""
1395
other.lock_read()
1396
try:
1397
if stop_revision is None:
1398
stop_revision = other.last_revision()
1399
if stop_revision is None:
1400
# if there are no commits, we're done.
1401
return
1402
else:
1403
stop_revision = osutils.safe_revision_id(stop_revision)
1404
# whats the current last revision, before we fetch [and change it
1405
# possibly]
1406
last_rev = self.last_revision()
1407
# we fetch here regardless of whether we need to so that we pickup
1408
# filled in ghosts.
1409
self.fetch(other, stop_revision)
1410
my_ancestry = self.repository.get_ancestry(last_rev)
1411
if stop_revision in my_ancestry:
1412
# last_revision is a descendant of stop_revision
1413
return
1414
self.generate_revision_history(stop_revision, last_rev=last_rev,
1415
other_branch=other)
1416
finally:
1417
other.unlock()
1418
1419
def basis_tree(self):
1420
"""See Branch.basis_tree."""
1421
return self.repository.revision_tree(self.last_revision())
1422
1423
@deprecated_method(zero_eight)
1424
def working_tree(self):
1425
"""Create a Working tree object for this branch."""
1426
1427
from bzrlib.transport.local import LocalTransport
1428
if (self.base.find('://') != -1 or
1429
not isinstance(self._transport, LocalTransport)):
1430
raise NoWorkingTree(self.base)
1431
return self.bzrdir.open_workingtree()
1432
1433
@needs_write_lock
1434
def pull(self, source, overwrite=False, stop_revision=None,
1435
_hook_master=None, _run_hooks=True):
1436
"""See Branch.pull.
1437
1438
:param _hook_master: Private parameter - set the branch to
1439
be supplied as the master to push hooks.
1440
:param _run_hooks: Private parameter - allow disabling of
1441
hooks, used when pushing to a master branch.
1442
"""
1443
result = PullResult()
1444
result.source_branch = source
1445
result.target_branch = self
1446
source.lock_read()
1447
try:
1448
result.old_revno, result.old_revid = self.last_revision_info()
1449
try:
1450
self.update_revisions(source, stop_revision)
1451
except DivergedBranches:
1452
if not overwrite:
1453
raise
1454
if overwrite:
1455
if stop_revision is None:
1456
stop_revision = source.last_revision()
1457
self.generate_revision_history(stop_revision)
1458
result.tag_conflicts = source.tags.merge_to(self.tags)
1459
result.new_revno, result.new_revid = self.last_revision_info()
1460
if _hook_master:
1461
result.master_branch = _hook_master
1462
result.local_branch = self
1463
else:
1464
result.master_branch = self
1465
result.local_branch = None
1466
if _run_hooks:
1467
for hook in Branch.hooks['post_pull']:
1468
hook(result)
1469
finally:
1470
source.unlock()
1471
return result
1472
1473
def _get_parent_location(self):
1474
_locs = ['parent', 'pull', 'x-pull']
1475
for l in _locs:
1476
try:
1477
return self.control_files.get(l).read().strip('\n')
1478
except NoSuchFile:
1479
pass
1480
return None
1481
1482
@needs_read_lock
1483
def push(self, target, overwrite=False, stop_revision=None,
1484
_hook_master=None, _run_hooks=True):
1485
"""See Branch.push.
1486
1487
:param _hook_master: Private parameter - set the branch to
1488
be supplied as the master to push hooks.
1489
:param _run_hooks: Private parameter - allow disabling of
1490
hooks, used when pushing to a master branch.
1491
"""
1492
result = PushResult()
1493
result.source_branch = self
1494
result.target_branch = target
1495
target.lock_write()
1496
try:
1497
result.old_revno, result.old_revid = target.last_revision_info()
1498
try:
1499
target.update_revisions(self, stop_revision)
1500
except DivergedBranches:
1501
if not overwrite:
1502
raise
1503
if overwrite:
1504
target.set_revision_history(self.revision_history())
1505
result.tag_conflicts = self.tags.merge_to(target.tags)
1506
result.new_revno, result.new_revid = target.last_revision_info()
1507
if _hook_master:
1508
result.master_branch = _hook_master
1509
result.local_branch = target
1510
else:
1511
result.master_branch = target
1512
result.local_branch = None
1513
if _run_hooks:
1514
for hook in Branch.hooks['post_push']:
1515
hook(result)
1516
finally:
1517
target.unlock()
1518
return result
1519
1520
def get_parent(self):
1521
"""See Branch.get_parent."""
1522
1523
assert self.base[-1] == '/'
1524
parent = self._get_parent_location()
1525
if parent is None:
1526
return parent
1527
# This is an old-format absolute path to a local branch
1528
# turn it into a url
1529
if parent.startswith('/'):
1530
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1531
try:
1532
return urlutils.join(self.base[:-1], parent)
1533
except errors.InvalidURLJoin, e:
1534
raise errors.InaccessibleParent(parent, self.base)
1535
1536
def get_push_location(self):
1537
"""See Branch.get_push_location."""
1538
push_loc = self.get_config().get_user_option('push_location')
1539
return push_loc
1540
1541
def set_push_location(self, location):
1542
"""See Branch.set_push_location."""
1543
self.get_config().set_user_option(
1544
'push_location', location,
1545
store=_mod_config.STORE_LOCATION_NORECURSE)
1546
1547
@needs_write_lock
1548
def set_parent(self, url):
1549
"""See Branch.set_parent."""
1550
# TODO: Maybe delete old location files?
1551
# URLs should never be unicode, even on the local fs,
1552
# FIXUP this and get_parent in a future branch format bump:
1553
# read and rewrite the file, and have the new format code read
1554
# using .get not .get_utf8. RBC 20060125
1555
if url is not None:
1556
if isinstance(url, unicode):
1557
try:
1558
url = url.encode('ascii')
1559
except UnicodeEncodeError:
1560
raise bzrlib.errors.InvalidURL(url,
1561
"Urls must be 7-bit ascii, "
1562
"use bzrlib.urlutils.escape")
1563
url = urlutils.relative_url(self.base, url)
1564
self._set_parent_location(url)
1565
1566
def _set_parent_location(self, url):
1567
if url is None:
1568
self.control_files._transport.delete('parent')
1569
else:
1570
assert isinstance(url, str)
1571
self.control_files.put_bytes('parent', url + '\n')
1572
1573
@deprecated_function(zero_nine)
1574
def tree_config(self):
1575
"""DEPRECATED; call get_config instead.
1576
TreeConfig has become part of BranchConfig."""
1577
return TreeConfig(self)
1578
1579
1580
class BzrBranch5(BzrBranch):
1581
"""A format 5 branch. This supports new features over plan branches.
1582
1583
It has support for a master_branch which is the data for bound branches.
1584
"""
1585
1586
def __init__(self,
1587
_format,
1588
_control_files,
1589
a_bzrdir,
1590
_repository):
1591
super(BzrBranch5, self).__init__(_format=_format,
1592
_control_files=_control_files,
1593
a_bzrdir=a_bzrdir,
1594
_repository=_repository)
1595
1596
@needs_write_lock
1597
def pull(self, source, overwrite=False, stop_revision=None,
1598
_run_hooks=True):
1599
"""Extends branch.pull to be bound branch aware.
1600
1601
:param _run_hooks: Private parameter used to force hook running
1602
off during bound branch double-pushing.
1603
"""
1604
bound_location = self.get_bound_location()
1605
master_branch = None
1606
if bound_location and source.base != bound_location:
1607
# not pulling from master, so we need to update master.
1608
master_branch = self.get_master_branch()
1609
master_branch.lock_write()
1610
try:
1611
if master_branch:
1612
# pull from source into master.
1613
master_branch.pull(source, overwrite, stop_revision,
1614
_run_hooks=False)
1615
return super(BzrBranch5, self).pull(source, overwrite,
1616
stop_revision, _hook_master=master_branch,
1617
_run_hooks=_run_hooks)
1618
finally:
1619
if master_branch:
1620
master_branch.unlock()
1621
1622
@needs_read_lock
1623
def push(self, target, overwrite=False, stop_revision=None):
1624
"""Updates branch.push to be bound branch aware."""
1625
bound_location = target.get_bound_location()
1626
master_branch = None
1627
if bound_location and target.base != bound_location:
1628
# not pushing to master, so we need to update master.
1629
master_branch = target.get_master_branch()
1630
master_branch.lock_write()
1631
try:
1632
if master_branch:
1633
# push into the master from this branch.
1634
super(BzrBranch5, self).push(master_branch, overwrite,
1635
stop_revision, _run_hooks=False)
1636
# and push into the target branch from this. Note that we push from
1637
# this branch again, because its considered the highest bandwidth
1638
# repository.
1639
return super(BzrBranch5, self).push(target, overwrite,
1640
stop_revision, _hook_master=master_branch)
1641
finally:
1642
if master_branch:
1643
master_branch.unlock()
1644
1645
def get_bound_location(self):
1646
try:
1647
return self.control_files.get_utf8('bound').read()[:-1]
1648
except errors.NoSuchFile:
1649
return None
1650
1651
@needs_read_lock
1652
def get_master_branch(self):
1653
"""Return the branch we are bound to.
1654
1655
:return: Either a Branch, or None
1656
1657
This could memoise the branch, but if thats done
1658
it must be revalidated on each new lock.
1659
So for now we just don't memoise it.
1660
# RBC 20060304 review this decision.
1661
"""
1662
bound_loc = self.get_bound_location()
1663
if not bound_loc:
1664
return None
1665
try:
1666
return Branch.open(bound_loc)
1667
except (errors.NotBranchError, errors.ConnectionError), e:
1668
raise errors.BoundBranchConnectionFailure(
1669
self, bound_loc, e)
1670
1671
@needs_write_lock
1672
def set_bound_location(self, location):
1673
"""Set the target where this branch is bound to.
1674
1675
:param location: URL to the target branch
1676
"""
1677
if location:
1678
self.control_files.put_utf8('bound', location+'\n')
1679
else:
1680
try:
1681
self.control_files._transport.delete('bound')
1682
except NoSuchFile:
1683
return False
1348
1684
return True
1349
if filename == head:
1350
break
1351
filename = head
1352
return False
1353
1354
1355
1356
def gen_file_id(name):
1357
"""Return new file id.
1358
1359
This should probably generate proper UUIDs, but for the moment we
1360
cope with just randomness because running uuidgen every time is
1361
slow."""
1362
import re
1363
from binascii import hexlify
1364
from time import time
1365
1366
# get last component
1367
idx = name.rfind('/')
1368
if idx != -1:
1369
name = name[idx+1 : ]
1370
idx = name.rfind('\\')
1371
if idx != -1:
1372
name = name[idx+1 : ]
1373
1374
# make it not a hidden file
1375
name = name.lstrip('.')
1376
1377
# remove any wierd characters; we don't escape them but rather
1378
# just pull them out
1379
name = re.sub(r'[^\w.]', '', name)
1380
1381
s = hexlify(rand_bytes(8))
1382
return '-'.join((name, compact_date(time()), s))
1383
1384
1385
def gen_root_id():
1386
"""Return a new tree-root file id."""
1387
return gen_file_id('TREE_ROOT')
1388
1685
1686
@needs_write_lock
1687
def bind(self, other):
1688
"""Bind this branch to the branch other.
1689
1690
This does not push or pull data between the branches, though it does
1691
check for divergence to raise an error when the branches are not
1692
either the same, or one a prefix of the other. That behaviour may not
1693
be useful, so that check may be removed in future.
1694
1695
:param other: The branch to bind to
1696
:type other: Branch
1697
"""
1698
# TODO: jam 20051230 Consider checking if the target is bound
1699
# It is debatable whether you should be able to bind to
1700
# a branch which is itself bound.
1701
# Committing is obviously forbidden,
1702
# but binding itself may not be.
1703
# Since we *have* to check at commit time, we don't
1704
# *need* to check here
1705
1706
# we want to raise diverged if:
1707
# last_rev is not in the other_last_rev history, AND
1708
# other_last_rev is not in our history, and do it without pulling
1709
# history around
1710
last_rev = self.last_revision()
1711
if last_rev is not None:
1712
other.lock_read()
1713
try:
1714
other_last_rev = other.last_revision()
1715
if other_last_rev is not None:
1716
# neither branch is new, we have to do some work to
1717
# ascertain diversion.
1718
remote_graph = other.repository.get_revision_graph(
1719
other_last_rev)
1720
local_graph = self.repository.get_revision_graph(last_rev)
1721
if (last_rev not in remote_graph and
1722
other_last_rev not in local_graph):
1723
raise errors.DivergedBranches(self, other)
1724
finally:
1725
other.unlock()
1726
self.set_bound_location(other.base)
1727
1728
@needs_write_lock
1729
def unbind(self):
1730
"""If bound, unbind"""
1731
return self.set_bound_location(None)
1732
1733
@needs_write_lock
1734
def update(self):
1735
"""Synchronise this branch with the master branch if any.
1736
1737
:return: None or the last_revision that was pivoted out during the
1738
update.
1739
"""
1740
master = self.get_master_branch()
1741
if master is not None:
1742
old_tip = self.last_revision()
1743
self.pull(master, overwrite=True)
1744
if old_tip in self.repository.get_ancestry(self.last_revision()):
1745
return None
1746
return old_tip
1747
return None
1748
1749
1750
class BzrBranchExperimental(BzrBranch5):
1751
"""Bzr experimental branch format
1752
1753
This format has:
1754
- a revision-history file.
1755
- a format string
1756
- a lock dir guarding the branch itself
1757
- all of this stored in a branch/ subdirectory
1758
- works with shared repositories.
1759
- a tag dictionary in the branch
1760
1761
This format is new in bzr 0.15, but shouldn't be used for real data,
1762
only for testing.
1763
1764
This class acts as it's own BranchFormat.
1765
"""
1766
1767
_matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1768
1769
@classmethod
1770
def get_format_string(cls):
1771
"""See BranchFormat.get_format_string()."""
1772
return "Bazaar-NG branch format experimental\n"
1773
1774
@classmethod
1775
def get_format_description(cls):
1776
"""See BranchFormat.get_format_description()."""
1777
return "Experimental branch format"
1778
1779
@classmethod
1780
def _initialize_control_files(cls, a_bzrdir, utf8_files, lock_filename,
1781
lock_class):
1782
branch_transport = a_bzrdir.get_branch_transport(cls)
1783
control_files = lockable_files.LockableFiles(branch_transport,
1784
lock_filename, lock_class)
1785
control_files.create_lock()
1786
control_files.lock_write()
1787
try:
1788
for filename, content in utf8_files:
1789
control_files.put_utf8(filename, content)
1790
finally:
1791
control_files.unlock()
1792
1793
@classmethod
1794
def initialize(cls, a_bzrdir):
1795
"""Create a branch of this format in a_bzrdir."""
1796
utf8_files = [('format', cls.get_format_string()),
1797
('revision-history', ''),
1798
('branch-name', ''),
1799
('tags', ''),
1800
]
1801
cls._initialize_control_files(a_bzrdir, utf8_files,
1802
'lock', lockdir.LockDir)
1803
return cls.open(a_bzrdir, _found=True)
1804
1805
@classmethod
1806
def open(cls, a_bzrdir, _found=False):
1807
"""Return the branch object for a_bzrdir
1808
1809
_found is a private parameter, do not use it. It is used to indicate
1810
if format probing has already be done.
1811
"""
1812
if not _found:
1813
format = BranchFormat.find_format(a_bzrdir)
1814
assert format.__class__ == cls
1815
transport = a_bzrdir.get_branch_transport(None)
1816
control_files = lockable_files.LockableFiles(transport, 'lock',
1817
lockdir.LockDir)
1818
return cls(_format=cls,
1819
_control_files=control_files,
1820
a_bzrdir=a_bzrdir,
1821
_repository=a_bzrdir.find_repository())
1822
1823
@classmethod
1824
def is_supported(cls):
1825
return True
1826
1827
def _make_tags(self):
1828
return BasicTags(self)
1829
1830
@classmethod
1831
def supports_tags(cls):
1832
return True
1833
1834
1835
BranchFormat.register_format(BzrBranchExperimental)
1836
1837
1838
class BzrBranch6(BzrBranch5):
1839
1840
@needs_read_lock
1841
def last_revision_info(self):
1842
revision_string = self.control_files.get('last-revision').read()
1843
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
1844
revision_id = cache_utf8.get_cached_utf8(revision_id)
1845
revno = int(revno)
1846
return revno, revision_id
1847
1848
def last_revision(self):
1849
"""Return last revision id, or None"""
1850
revision_id = self.last_revision_info()[1]
1851
if revision_id == _mod_revision.NULL_REVISION:
1852
revision_id = None
1853
return revision_id
1854
1855
def _write_last_revision_info(self, revno, revision_id):
1856
"""Simply write out the revision id, with no checks.
1857
1858
Use set_last_revision_info to perform this safely.
1859
1860
Does not update the revision_history cache.
1861
Intended to be called by set_last_revision_info and
1862
_write_revision_history.
1863
"""
1864
if revision_id is None:
1865
revision_id = 'null:'
1866
out_string = '%d %s\n' % (revno, revision_id)
1867
self.control_files.put_bytes('last-revision', out_string)
1868
1869
@needs_write_lock
1870
def set_last_revision_info(self, revno, revision_id):
1871
revision_id = osutils.safe_revision_id(revision_id)
1872
if self._get_append_revisions_only():
1873
self._check_history_violation(revision_id)
1874
self._write_last_revision_info(revno, revision_id)
1875
transaction = self.get_transaction()
1876
cached_history = transaction.map.find_revision_history()
1877
if cached_history is not None:
1878
transaction.map.remove_object(cached_history)
1879
1880
def _check_history_violation(self, revision_id):
1881
last_revision = self.last_revision()
1882
if last_revision is None:
1883
return
1884
if last_revision not in self._lefthand_history(revision_id):
1885
raise errors.AppendRevisionsOnlyViolation(self.base)
1886
1887
def _gen_revision_history(self):
1888
"""Generate the revision history from last revision
1889
"""
1890
history = list(self.repository.iter_reverse_revision_history(
1891
self.last_revision()))
1892
history.reverse()
1893
return history
1894
1895
def _write_revision_history(self, history):
1896
"""Factored out of set_revision_history.
1897
1898
This performs the actual writing to disk, with format-specific checks.
1899
It is intended to be called by BzrBranch5.set_revision_history.
1900
"""
1901
if len(history) == 0:
1902
last_revision = 'null:'
1903
else:
1904
if history != self._lefthand_history(history[-1]):
1905
raise errors.NotLefthandHistory(history)
1906
last_revision = history[-1]
1907
if self._get_append_revisions_only():
1908
self._check_history_violation(last_revision)
1909
self._write_last_revision_info(len(history), last_revision)
1910
1911
@needs_write_lock
1912
def append_revision(self, *revision_ids):
1913
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1914
if len(revision_ids) == 0:
1915
return
1916
prev_revno, prev_revision = self.last_revision_info()
1917
for revision in self.repository.get_revisions(revision_ids):
1918
if prev_revision == _mod_revision.NULL_REVISION:
1919
if revision.parent_ids != []:
1920
raise errors.NotLeftParentDescendant(self, prev_revision,
1921
revision.revision_id)
1922
else:
1923
if revision.parent_ids[0] != prev_revision:
1924
raise errors.NotLeftParentDescendant(self, prev_revision,
1925
revision.revision_id)
1926
prev_revision = revision.revision_id
1927
self.set_last_revision_info(prev_revno + len(revision_ids),
1928
revision_ids[-1])
1929
1930
def _set_config_location(self, name, url, config=None,
1931
make_relative=False):
1932
if config is None:
1933
config = self.get_config()
1934
if url is None:
1935
url = ''
1936
elif make_relative:
1937
url = urlutils.relative_url(self.base, url)
1938
config.set_user_option(name, url)
1939
1940
1941
def _get_config_location(self, name, config=None):
1942
if config is None:
1943
config = self.get_config()
1944
location = config.get_user_option(name)
1945
if location == '':
1946
location = None
1947
return location
1948
1949
@needs_write_lock
1950
def _set_parent_location(self, url):
1951
"""Set the parent branch"""
1952
self._set_config_location('parent_location', url, make_relative=True)
1953
1954
@needs_read_lock
1955
def _get_parent_location(self):
1956
"""Set the parent branch"""
1957
return self._get_config_location('parent_location')
1958
1959
def set_push_location(self, location):
1960
"""See Branch.set_push_location."""
1961
self._set_config_location('push_location', location)
1962
1963
def set_bound_location(self, location):
1964
"""See Branch.set_push_location."""
1965
result = None
1966
config = self.get_config()
1967
if location is None:
1968
if config.get_user_option('bound') != 'True':
1969
return False
1970
else:
1971
config.set_user_option('bound', 'False')
1972
return True
1973
else:
1974
self._set_config_location('bound_location', location,
1975
config=config)
1976
config.set_user_option('bound', 'True')
1977
return True
1978
1979
def _get_bound_location(self, bound):
1980
"""Return the bound location in the config file.
1981
1982
Return None if the bound parameter does not match"""
1983
config = self.get_config()
1984
config_bound = (config.get_user_option('bound') == 'True')
1985
if config_bound != bound:
1986
return None
1987
return self._get_config_location('bound_location', config=config)
1988
1989
def get_bound_location(self):
1990
"""See Branch.set_push_location."""
1991
return self._get_bound_location(True)
1992
1993
def get_old_bound_location(self):
1994
"""See Branch.get_old_bound_location"""
1995
return self._get_bound_location(False)
1996
1997
def set_append_revisions_only(self, enabled):
1998
if enabled:
1999
value = 'True'
2000
else:
2001
value = 'False'
2002
self.get_config().set_user_option('append_revisions_only', value)
2003
2004
def _get_append_revisions_only(self):
2005
value = self.get_config().get_user_option('append_revisions_only')
2006
return value == 'True'
2007
2008
def _synchronize_history(self, destination, revision_id):
2009
"""Synchronize last revision and revision history between branches.
2010
2011
This version is most efficient when the destination is also a
2012
BzrBranch6, but works for BzrBranch5, as long as the destination's
2013
repository contains all the lefthand ancestors of the intended
2014
last_revision. If not, set_last_revision_info will fail.
2015
2016
:param destination: The branch to copy the history into
2017
:param revision_id: The revision-id to truncate history at. May
2018
be None to copy complete history.
2019
"""
2020
if revision_id is None:
2021
revno, revision_id = self.last_revision_info()
2022
else:
2023
revno = self.revision_id_to_revno(revision_id)
2024
destination.set_last_revision_info(revno, revision_id)
2025
2026
def _make_tags(self):
2027
return BasicTags(self)
2028
2029
2030
class BranchTestProviderAdapter(object):
2031
"""A tool to generate a suite testing multiple branch formats at once.
2032
2033
This is done by copying the test once for each transport and injecting
2034
the transport_server, transport_readonly_server, and branch_format
2035
classes into each copy. Each copy is also given a new id() to make it
2036
easy to identify.
2037
"""
2038
2039
def __init__(self, transport_server, transport_readonly_server, formats):
2040
self._transport_server = transport_server
2041
self._transport_readonly_server = transport_readonly_server
2042
self._formats = formats
2043
2044
def adapt(self, test):
2045
result = TestSuite()
2046
for branch_format, bzrdir_format in self._formats:
2047
new_test = deepcopy(test)
2048
new_test.transport_server = self._transport_server
2049
new_test.transport_readonly_server = self._transport_readonly_server
2050
new_test.bzrdir_format = bzrdir_format
2051
new_test.branch_format = branch_format
2052
def make_new_test_id():
2053
# the format can be either a class or an instance
2054
name = getattr(branch_format, '__name__',
2055
branch_format.__class__.__name__)
2056
new_id = "%s(%s)" % (new_test.id(), name)
2057
return lambda: new_id
2058
new_test.id = make_new_test_id()
2059
result.addTest(new_test)
2060
return result
2061
2062
2063
######################################################################
2064
# results of operations
2065
2066
2067
class _Result(object):
2068
2069
def _show_tag_conficts(self, to_file):
2070
if not getattr(self, 'tag_conflicts', None):
2071
return
2072
to_file.write('Conflicting tags:\n')
2073
for name, value1, value2 in self.tag_conflicts:
2074
to_file.write(' %s\n' % (name, ))
2075
2076
2077
class PullResult(_Result):
2078
"""Result of a Branch.pull operation.
2079
2080
:ivar old_revno: Revision number before pull.
2081
:ivar new_revno: Revision number after pull.
2082
:ivar old_revid: Tip revision id before pull.
2083
:ivar new_revid: Tip revision id after pull.
2084
:ivar source_branch: Source (local) branch object.
2085
:ivar master_branch: Master branch of the target, or None.
2086
:ivar target_branch: Target/destination branch object.
2087
"""
2088
2089
def __int__(self):
2090
# DEPRECATED: pull used to return the change in revno
2091
return self.new_revno - self.old_revno
2092
2093
def report(self, to_file):
2094
if self.old_revid == self.new_revid:
2095
to_file.write('No revisions to pull.\n')
2096
else:
2097
to_file.write('Now on revision %d.\n' % self.new_revno)
2098
self._show_tag_conficts(to_file)
2099
2100
2101
class PushResult(_Result):
2102
"""Result of a Branch.push operation.
2103
2104
:ivar old_revno: Revision number before push.
2105
:ivar new_revno: Revision number after push.
2106
:ivar old_revid: Tip revision id before push.
2107
:ivar new_revid: Tip revision id after push.
2108
:ivar source_branch: Source branch object.
2109
:ivar master_branch: Master branch of the target, or None.
2110
:ivar target_branch: Target/destination branch object.
2111
"""
2112
2113
def __int__(self):
2114
# DEPRECATED: push used to return the change in revno
2115
return self.new_revno - self.old_revno
2116
2117
def report(self, to_file):
2118
"""Write a human-readable description of the result."""
2119
if self.old_revid == self.new_revid:
2120
to_file.write('No new revisions to push.\n')
2121
else:
2122
to_file.write('Pushed up to revision %d.\n' % self.new_revno)
2123
self._show_tag_conficts(to_file)
2124
2125
2126
class BranchCheckResult(object):
2127
"""Results of checking branch consistency.
2128
2129
:see: Branch.check
2130
"""
2131
2132
def __init__(self, branch):
2133
self.branch = branch
2134
2135
def report_results(self, verbose):
2136
"""Report the check results via trace.note.
2137
2138
:param verbose: Requests more detailed display of what was checked,
2139
if any.
2140
"""
2141
note('checked branch %s format %s',
2142
self.branch.base,
2143
self.branch._format)
2144
2145
2146
class Converter5to6(object):
2147
"""Perform an in-place upgrade of format 5 to format 6"""
2148
2149
def convert(self, branch):
2150
# Data for 5 and 6 can peacefully coexist.
2151
format = BzrBranchFormat6()
2152
new_branch = format.open(branch.bzrdir, _found=True)
2153
2154
# Copy source data into target
2155
new_branch.set_last_revision_info(*branch.last_revision_info())
2156
new_branch.set_parent(branch.get_parent())
2157
new_branch.set_bound_location(branch.get_bound_location())
2158
new_branch.set_push_location(branch.get_push_location())
2159
2160
# New branch has no tags by default
2161
new_branch.tags._set_tag_dict({})
2162
2163
# Copying done; now update target format
2164
new_branch.control_files.put_utf8('format',
2165
format.get_format_string())
2166
2167
# Clean up old files
2168
new_branch.control_files._transport.delete('revision-history')
2169
try:
2170
branch.set_parent(None)
2171
except NoSuchFile:
2172
pass
2173
branch.set_bound_location(None)
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0