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- Committer: Aaron Bentley
- Date: 2007-03-14 03:42:40 UTC
- mto: (1551.19.24 Aaron's mergeable stuff)
- mto: This revision was merged to the branch mainline in revision 2358.
- Revision ID: aaron.bentley@utoronto.ca-20070314034240-62xl0izb1dloe30v
Introduce dirstate-tags format
- 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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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,
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)
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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
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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splitpath, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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import bzrlib.errors
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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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 Branch Format 6 (bzr 0.15)\n"
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# TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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import remotebranch
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return remotebranch.RemoteBranch(f, **args)
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else:
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return Branch(f, **args)
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def find_cached_branch(f, cache_root, **args):
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from remotebranch import RemoteBranch
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br = find_branch(f, **args)
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def cacheify(br, store_name):
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from meta_store import CachedStore
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cache_path = os.path.join(cache_root, store_name)
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os.mkdir(cache_path)
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new_store = CachedStore(getattr(br, store_name), cache_path)
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setattr(br, store_name, new_store)
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if isinstance(br, RemoteBranch):
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cacheify(br, 'inventory_store')
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cacheify(br, 'text_store')
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cacheify(br, 'revision_store')
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return br
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def _relpath(base, path):
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"""Return path relative to base, or raise exception.
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The path may be either an absolute path or a path relative to the
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current working directory.
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Lifted out of Branch.relpath for ease of testing.
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os.path.commonprefix (python2.4) has a bad bug that it works just
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on string prefixes, assuming that '/u' is a prefix of '/u2'. This
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avoids that problem."""
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rp = os.path.abspath(path)
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s = []
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head = rp
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while len(head) >= len(base):
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if head == base:
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break
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head, tail = os.path.split(head)
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if tail:
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s.insert(0, tail)
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else:
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root."""
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if f == None:
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f = os.getcwd()
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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else:
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f = os.path.abspath(f)
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if not os.path.exists(f):
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raise BzrError('%r does not exist' % f)
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orig_f = f
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while True:
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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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return f
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head, tail = os.path.split(f)
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if head == f:
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# reached the root, whatever that may be
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raise BzrError('%r is not in a branch' % orig_f)
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f = head
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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# cache in memory to make this faster. In general anything can be
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# cached in memory between lock and unlock operations. .. nb thats
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# what the transaction identity map provides
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######################################################################
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"""Branch holding a history of revisions.
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base
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Base directory of the branch.
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_lock_mode
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None, or 'r' or 'w'
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_lock_count
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If _lock_mode is true, a positive count of the number of times the
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lock has been taken.
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_lock
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Lock object from bzrlib.lock.
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Base directory/url of the branch.
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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
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_lock = None
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# Map some sort of prefix into a namespace
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# stuff like "revno:10", "revid:", etc.
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# This should match a prefix with a function which accepts
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REVISION_NAMESPACES = {}
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def __init__(self, base, init=False, find_root=True):
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"""Create new branch object at a particular location.
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base -- Base directory for the branch.
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init -- If True, create new control files in a previously
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unversioned directory. If False, the branch must already
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be versioned.
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find_root -- If true and init is false, find the root of the
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existing branch containing base.
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In the test suite, creation of new trees is tested using the
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`ScratchBranch` class.
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"""
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from bzrlib.store import ImmutableStore
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if init:
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self.base = os.path.realpath(base)
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self._make_control()
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elif find_root:
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self.base = find_branch_root(base)
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else:
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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from errors import NotBranchError
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raise NotBranchError("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self._check_format()
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self.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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def __str__(self):
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return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
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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):
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"""Break a lock if one is present from another instance.
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Uses the ui factory to ask for confirmation if the lock may be from
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an active process.
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This will probe the repository for its lock as well.
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"""
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self.control_files.break_lock()
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self.repository.break_lock()
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master = self.get_master_branch()
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if master is not None:
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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.
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"""
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control = bzrdir.BzrDir.open(base, _unsupported)
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return control.open_branch(_unsupported)
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@staticmethod
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def open_containing(url):
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"""Open an existing branch which contains url.
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This probes for a branch at url, and searches upwards from there.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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If there is one and it is either an unrecognised format or an unsupported
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format, UnknownFormatError or UnsupportedFormatError are raised.
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If there is one, it is returned, along with the unused portion of url.
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"""
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control, relpath = bzrdir.BzrDir.open_containing(url)
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return control.open_branch(), relpath
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@staticmethod
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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NOTE: This will soon be deprecated in favour of creation
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through a BzrDir.
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"""
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return bzrdir.BzrDir.create_standalone_workingtree(base).branch
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@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
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up cached stores located under cache_root.
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NOTE: This is unused.
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"""
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pass
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def get_config(self):
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return BranchConfig(self)
168
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def _get_nick(self):
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return self.get_config().get_nickname()
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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
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def is_locked(self):
178
raise NotImplementedError(self.is_locked)
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def lock_write(self):
213
if self._lock_mode:
214
if self._lock_mode != 'w':
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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:
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
223
self._lock_mode = 'w'
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self._lock_count = 1
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raise NotImplementedError(self.lock_write)
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def lock_read(self):
229
if self._lock_mode:
230
assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
232
self._lock_count += 1
233
else:
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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 _set_config_location(self, name, url, config=None,
459
make_relative=False):
460
if config is None:
461
config = self.get_config()
462
if url is None:
463
url = ''
464
elif make_relative:
465
url = urlutils.relative_url(self.base, url)
466
config.set_user_option(name, url)
467
468
def _get_config_location(self, name, config=None):
469
if config is None:
470
config = self.get_config()
471
location = config.get_user_option(name)
472
if location == '':
473
location = None
474
return location
475
476
def get_submit_branch(self):
477
"""Return the submit location of the branch.
478
479
This is the default location for bundle. The usual
480
pattern is that the user can override it by specifying a
481
location.
482
"""
483
return self.get_config().get_user_option('submit_branch')
484
485
def set_submit_branch(self, location):
486
"""Return the submit location of the branch.
487
488
This is the default location for bundle. The usual
489
pattern is that the user can override it by specifying a
490
location.
491
"""
492
self.get_config().set_user_option('submit_branch', location)
493
494
def get_public_branch(self):
495
"""Return the public location of the branch.
496
497
This is is used by merge directives.
498
"""
499
return self._get_config_location('public_branch')
500
501
def set_public_branch(self, location):
502
"""Return the submit location of the branch.
503
504
This is the default location for bundle. The usual
505
pattern is that the user can override it by specifying a
506
location.
507
"""
508
self._set_config_location('public_branch', location)
509
510
def get_push_location(self):
511
"""Return the None or the location to push this branch to."""
512
raise NotImplementedError(self.get_push_location)
513
514
def set_push_location(self, location):
515
"""Set a new push location for this branch."""
516
raise NotImplementedError(self.set_push_location)
517
518
def set_parent(self, url):
519
raise NotImplementedError(self.set_parent)
520
521
@needs_write_lock
522
def update(self):
523
"""Synchronise this branch with the master branch if any.
524
525
:return: None or the last_revision pivoted out during the update.
526
"""
527
return None
528
529
def check_revno(self, revno):
530
"""\
531
Check whether a revno corresponds to any revision.
532
Zero (the NULL revision) is considered valid.
533
"""
534
if revno != 0:
535
self.check_real_revno(revno)
536
537
def check_real_revno(self, revno):
538
"""\
539
Check whether a revno corresponds to a real revision.
540
Zero (the NULL revision) is considered invalid
541
"""
542
if revno < 1 or revno > self.revno():
543
raise InvalidRevisionNumber(revno)
544
545
@needs_read_lock
546
def clone(self, *args, **kwargs):
547
"""Clone this branch into to_bzrdir preserving all semantic values.
548
549
revision_id: if not None, the revision history in the new branch will
550
be truncated to end with revision_id.
551
"""
552
# for API compatibility, until 0.8 releases we provide the old api:
553
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
554
# after 0.8 releases, the *args and **kwargs should be changed:
555
# def clone(self, to_bzrdir, revision_id=None):
556
if (kwargs.get('to_location', None) or
557
kwargs.get('revision', None) or
558
kwargs.get('basis_branch', None) or
559
(len(args) and isinstance(args[0], basestring))):
560
# backwards compatibility api:
561
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
562
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
563
# get basis_branch
564
if len(args) > 2:
565
basis_branch = args[2]
566
else:
567
basis_branch = kwargs.get('basis_branch', None)
568
if basis_branch:
569
basis = basis_branch.bzrdir
570
else:
571
basis = None
572
# get revision
573
if len(args) > 1:
574
revision_id = args[1]
575
else:
576
revision_id = kwargs.get('revision', None)
577
# get location
578
if len(args):
579
url = args[0]
580
else:
581
# no default to raise if not provided.
582
url = kwargs.get('to_location')
583
return self.bzrdir.clone(url,
584
revision_id=revision_id,
585
basis=basis).open_branch()
586
# new cleaner api.
587
# generate args by hand
588
if len(args) > 1:
589
revision_id = args[1]
590
else:
591
revision_id = kwargs.get('revision_id', None)
592
if len(args):
593
to_bzrdir = args[0]
594
else:
595
# no default to raise if not provided.
596
to_bzrdir = kwargs.get('to_bzrdir')
597
result = self._format.initialize(to_bzrdir)
598
self.copy_content_into(result, revision_id=revision_id)
599
return result
600
601
@needs_read_lock
602
def sprout(self, to_bzrdir, revision_id=None):
603
"""Create a new line of development from the branch, into to_bzrdir.
604
605
revision_id: if not None, the revision history in the new branch will
606
be truncated to end with revision_id.
607
"""
608
result = self._format.initialize(to_bzrdir)
609
self.copy_content_into(result, revision_id=revision_id)
610
result.set_parent(self.bzrdir.root_transport.base)
611
return result
612
613
def _synchronize_history(self, destination, revision_id):
614
"""Synchronize last revision and revision history between branches.
615
616
This version is most efficient when the destination is also a
617
BzrBranch5, but works for BzrBranch6 as long as the revision
618
history is the true lefthand parent history, and all of the revisions
619
are in the destination's repository. If not, set_revision_history
620
will fail.
621
622
:param destination: The branch to copy the history into
623
:param revision_id: The revision-id to truncate history at. May
624
be None to copy complete history.
625
"""
626
new_history = self.revision_history()
627
if revision_id is not None:
628
revision_id = osutils.safe_revision_id(revision_id)
629
try:
630
new_history = new_history[:new_history.index(revision_id) + 1]
631
except ValueError:
632
rev = self.repository.get_revision(revision_id)
633
new_history = rev.get_history(self.repository)[1:]
634
destination.set_revision_history(new_history)
635
636
@needs_read_lock
637
def copy_content_into(self, destination, revision_id=None):
638
"""Copy the content of self into destination.
639
640
revision_id: if not None, the revision history in the new branch will
641
be truncated to end with revision_id.
642
"""
643
self._synchronize_history(destination, revision_id)
644
try:
645
parent = self.get_parent()
646
except errors.InaccessibleParent, e:
647
mutter('parent was not accessible to copy: %s', e)
648
else:
649
if parent:
650
destination.set_parent(parent)
651
652
@needs_read_lock
653
def check(self):
654
"""Check consistency of the branch.
655
656
In particular this checks that revisions given in the revision-history
657
do actually match up in the revision graph, and that they're all
658
present in the repository.
659
660
Callers will typically also want to check the repository.
661
662
:return: A BranchCheckResult.
663
"""
664
mainline_parent_id = None
665
for revision_id in self.revision_history():
666
try:
667
revision = self.repository.get_revision(revision_id)
668
except errors.NoSuchRevision, e:
669
raise errors.BzrCheckError("mainline revision {%s} not in repository"
670
% revision_id)
671
# In general the first entry on the revision history has no parents.
672
# But it's not illegal for it to have parents listed; this can happen
673
# in imports from Arch when the parents weren't reachable.
674
if mainline_parent_id is not None:
675
if mainline_parent_id not in revision.parent_ids:
676
raise errors.BzrCheckError("previous revision {%s} not listed among "
677
"parents of {%s}"
678
% (mainline_parent_id, revision_id))
679
mainline_parent_id = revision_id
680
return BranchCheckResult(self)
681
682
def _get_checkout_format(self):
683
"""Return the most suitable metadir for a checkout of this branch.
684
Weaves are used if this branch's repostory uses weaves.
685
"""
686
if isinstance(self.bzrdir, bzrdir.BzrDirPreSplitOut):
687
from bzrlib.repofmt import weaverepo
688
format = bzrdir.BzrDirMetaFormat1()
689
format.repository_format = weaverepo.RepositoryFormat7()
690
else:
691
format = self.repository.bzrdir.checkout_metadir()
692
format.branch_format = self._format
693
return format
694
695
def create_checkout(self, to_location, revision_id=None,
696
lightweight=False):
697
"""Create a checkout of a branch.
698
699
:param to_location: The url to produce the checkout at
700
:param revision_id: The revision to check out
701
:param lightweight: If True, produce a lightweight checkout, otherwise,
702
produce a bound branch (heavyweight checkout)
703
:return: The tree of the created checkout
704
"""
705
t = transport.get_transport(to_location)
706
try:
707
t.mkdir('.')
708
except errors.FileExists:
709
pass
710
if lightweight:
711
format = self._get_checkout_format()
712
checkout = format.initialize_on_transport(t)
713
BranchReferenceFormat().initialize(checkout, self)
714
else:
715
format = self._get_checkout_format()
716
checkout_branch = bzrdir.BzrDir.create_branch_convenience(
717
to_location, force_new_tree=False, format=format)
718
checkout = checkout_branch.bzrdir
719
checkout_branch.bind(self)
720
# pull up to the specified revision_id to set the initial
721
# branch tip correctly, and seed it with history.
722
checkout_branch.pull(self, stop_revision=revision_id)
723
tree = checkout.create_workingtree(revision_id)
724
basis_tree = tree.basis_tree()
725
basis_tree.lock_read()
726
try:
727
for path, file_id in basis_tree.iter_references():
728
reference_parent = self.reference_parent(file_id, path)
729
reference_parent.create_checkout(tree.abspath(path),
730
basis_tree.get_reference_revision(file_id, path),
731
lightweight)
732
finally:
733
basis_tree.unlock()
734
return tree
735
736
def reference_parent(self, file_id, path):
737
"""Return the parent branch for a tree-reference file_id
738
:param file_id: The file_id of the tree reference
739
:param path: The path of the file_id in the tree
740
:return: A branch associated with the file_id
741
"""
742
# FIXME should provide multiple branches, based on config
743
return Branch.open(self.bzrdir.root_transport.clone(path).base)
744
745
def supports_tags(self):
746
return self._format.supports_tags()
747
748
749
class BranchFormat(object):
750
"""An encapsulation of the initialization and open routines for a format.
751
752
Formats provide three things:
753
* An initialization routine,
754
* a format string,
755
* an open routine.
756
757
Formats are placed in an dict by their format string for reference
758
during branch opening. Its not required that these be instances, they
759
can be classes themselves with class methods - it simply depends on
760
whether state is needed for a given format or not.
761
762
Once a format is deprecated, just deprecate the initialize and open
763
methods on the format class. Do not deprecate the object, as the
764
object will be created every time regardless.
765
"""
766
767
_default_format = None
768
"""The default format used for new branches."""
769
770
_formats = {}
771
"""The known formats."""
772
773
@classmethod
774
def find_format(klass, a_bzrdir):
775
"""Return the format for the branch object in a_bzrdir."""
776
try:
777
transport = a_bzrdir.get_branch_transport(None)
778
format_string = transport.get("format").read()
779
return klass._formats[format_string]
780
except NoSuchFile:
781
raise NotBranchError(path=transport.base)
782
except KeyError:
783
raise errors.UnknownFormatError(format=format_string)
784
785
@classmethod
786
def get_default_format(klass):
787
"""Return the current default format."""
788
return klass._default_format
789
790
def get_format_string(self):
791
"""Return the ASCII format string that identifies this format."""
792
raise NotImplementedError(self.get_format_string)
793
794
def get_format_description(self):
795
"""Return the short format description for this format."""
796
raise NotImplementedError(self.get_format_description)
797
798
def _initialize_helper(self, a_bzrdir, utf8_files, lock_type='metadir',
799
set_format=True):
800
"""Initialize a branch in a bzrdir, with specified files
801
802
:param a_bzrdir: The bzrdir to initialize the branch in
803
:param utf8_files: The files to create as a list of
804
(filename, content) tuples
805
:param set_format: If True, set the format with
806
self.get_format_string. (BzrBranch4 has its format set
807
elsewhere)
808
:return: a branch in this format
809
"""
810
mutter('creating branch %r in %s', self, a_bzrdir.transport.base)
811
branch_transport = a_bzrdir.get_branch_transport(self)
812
lock_map = {
813
'metadir': ('lock', lockdir.LockDir),
814
'branch4': ('branch-lock', lockable_files.TransportLock),
815
}
816
lock_name, lock_class = lock_map[lock_type]
817
control_files = lockable_files.LockableFiles(branch_transport,
818
lock_name, lock_class)
819
control_files.create_lock()
820
control_files.lock_write()
821
if set_format:
822
control_files.put_utf8('format', self.get_format_string())
823
try:
824
for file, content in utf8_files:
825
control_files.put_utf8(file, content)
826
finally:
827
control_files.unlock()
828
return self.open(a_bzrdir, _found=True)
829
830
def initialize(self, a_bzrdir):
831
"""Create a branch of this format in a_bzrdir."""
832
raise NotImplementedError(self.initialize)
833
834
def is_supported(self):
835
"""Is this format supported?
836
837
Supported formats can be initialized and opened.
838
Unsupported formats may not support initialization or committing or
839
some other features depending on the reason for not being supported.
840
"""
841
return True
842
843
def open(self, a_bzrdir, _found=False):
844
"""Return the branch object for a_bzrdir
845
846
_found is a private parameter, do not use it. It is used to indicate
847
if format probing has already be done.
848
"""
849
raise NotImplementedError(self.open)
850
851
@classmethod
852
def register_format(klass, format):
853
klass._formats[format.get_format_string()] = format
854
855
@classmethod
856
def set_default_format(klass, format):
857
klass._default_format = format
858
859
@classmethod
860
def unregister_format(klass, format):
861
assert klass._formats[format.get_format_string()] is format
862
del klass._formats[format.get_format_string()]
863
864
def __str__(self):
865
return self.get_format_string().rstrip()
866
867
def supports_tags(self):
868
"""True if this format supports tags stored in the branch"""
869
return False # by default
870
871
# XXX: Probably doesn't really belong here -- mbp 20070212
872
def _initialize_control_files(self, a_bzrdir, utf8_files, lock_filename,
873
lock_class):
874
branch_transport = a_bzrdir.get_branch_transport(self)
875
control_files = lockable_files.LockableFiles(branch_transport,
876
lock_filename, lock_class)
877
control_files.create_lock()
878
control_files.lock_write()
879
try:
880
for filename, content in utf8_files:
881
control_files.put_utf8(filename, content)
882
finally:
883
control_files.unlock()
884
885
886
class BranchHooks(dict):
887
"""A dictionary mapping hook name to a list of callables for branch hooks.
888
889
e.g. ['set_rh'] Is the list of items to be called when the
890
set_revision_history function is invoked.
891
"""
892
893
def __init__(self):
894
"""Create the default hooks.
895
896
These are all empty initially, because by default nothing should get
897
notified.
898
"""
899
dict.__init__(self)
900
# Introduced in 0.15:
901
# invoked whenever the revision history has been set
902
# with set_revision_history. The api signature is
903
# (branch, revision_history), and the branch will
904
# be write-locked.
905
self['set_rh'] = []
906
# invoked after a push operation completes.
907
# the api signature is
908
# (push_result)
909
# containing the members
910
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
911
# where local is the local branch or None, master is the target
912
# master branch, and the rest should be self explanatory. The source
913
# is read locked and the target branches write locked. Source will
914
# be the local low-latency branch.
915
self['post_push'] = []
916
# invoked after a pull operation completes.
917
# the api signature is
918
# (pull_result)
919
# containing the members
920
# (source, local, master, old_revno, old_revid, new_revno, new_revid)
921
# where local is the local branch or None, master is the target
922
# master branch, and the rest should be self explanatory. The source
923
# is read locked and the target branches write locked. The local
924
# branch is the low-latency branch.
925
self['post_pull'] = []
926
# invoked after a commit operation completes.
927
# the api signature is
928
# (local, master, old_revno, old_revid, new_revno, new_revid)
929
# old_revid is NULL_REVISION for the first commit to a branch.
930
self['post_commit'] = []
931
# invoked after a uncommit operation completes.
932
# the api signature is
933
# (local, master, old_revno, old_revid, new_revno, new_revid) where
934
# local is the local branch or None, master is the target branch,
935
# and an empty branch recieves new_revno of 0, new_revid of None.
936
self['post_uncommit'] = []
937
938
def install_hook(self, hook_name, a_callable):
939
"""Install a_callable in to the hook hook_name.
940
941
:param hook_name: A hook name. See the __init__ method of BranchHooks
942
for the complete list of hooks.
943
:param a_callable: The callable to be invoked when the hook triggers.
944
The exact signature will depend on the hook - see the __init__
945
method of BranchHooks for details on each hook.
946
"""
947
try:
948
self[hook_name].append(a_callable)
949
except KeyError:
950
raise errors.UnknownHook('branch', hook_name)
951
952
953
# install the default hooks into the Branch class.
954
Branch.hooks = BranchHooks()
955
956
957
class BzrBranchFormat4(BranchFormat):
958
"""Bzr branch format 4.
959
960
This format has:
961
- a revision-history file.
962
- a branch-lock lock file [ to be shared with the bzrdir ]
963
"""
964
965
def get_format_description(self):
966
"""See BranchFormat.get_format_description()."""
967
return "Branch format 4"
968
969
def initialize(self, a_bzrdir):
970
"""Create a branch of this format in a_bzrdir."""
971
utf8_files = [('revision-history', ''),
972
('branch-name', ''),
973
]
974
return self._initialize_helper(a_bzrdir, utf8_files,
975
lock_type='branch4', set_format=False)
976
977
def __init__(self):
978
super(BzrBranchFormat4, self).__init__()
979
self._matchingbzrdir = bzrdir.BzrDirFormat6()
980
981
def open(self, a_bzrdir, _found=False):
982
"""Return the branch object for a_bzrdir
983
984
_found is a private parameter, do not use it. It is used to indicate
985
if format probing has already be done.
986
"""
987
if not _found:
988
# we are being called directly and must probe.
989
raise NotImplementedError
990
return BzrBranch(_format=self,
991
_control_files=a_bzrdir._control_files,
992
a_bzrdir=a_bzrdir,
993
_repository=a_bzrdir.open_repository())
994
995
def __str__(self):
996
return "Bazaar-NG branch format 4"
997
998
999
class BzrBranchFormat5(BranchFormat):
1000
"""Bzr branch format 5.
1001
1002
This format has:
1003
- a revision-history file.
1004
- a format string
1005
- a lock dir guarding the branch itself
1006
- all of this stored in a branch/ subdirectory
1007
- works with shared repositories.
1008
1009
This format is new in bzr 0.8.
1010
"""
1011
1012
def get_format_string(self):
1013
"""See BranchFormat.get_format_string()."""
1014
return "Bazaar-NG branch format 5\n"
1015
1016
def get_format_description(self):
1017
"""See BranchFormat.get_format_description()."""
1018
return "Branch format 5"
1019
1020
def initialize(self, a_bzrdir):
1021
"""Create a branch of this format in a_bzrdir."""
1022
utf8_files = [('revision-history', ''),
1023
('branch-name', ''),
1024
]
1025
return self._initialize_helper(a_bzrdir, utf8_files)
1026
1027
def __init__(self):
1028
super(BzrBranchFormat5, self).__init__()
1029
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1030
1031
def open(self, a_bzrdir, _found=False):
1032
"""Return the branch object for a_bzrdir
1033
1034
_found is a private parameter, do not use it. It is used to indicate
1035
if format probing has already be done.
1036
"""
1037
if not _found:
1038
format = BranchFormat.find_format(a_bzrdir)
1039
assert format.__class__ == self.__class__
1040
transport = a_bzrdir.get_branch_transport(None)
1041
control_files = lockable_files.LockableFiles(transport, 'lock',
1042
lockdir.LockDir)
1043
return BzrBranch5(_format=self,
1044
_control_files=control_files,
1045
a_bzrdir=a_bzrdir,
1046
_repository=a_bzrdir.find_repository())
1047
1048
1049
class BzrBranchFormat6(BzrBranchFormat5):
1050
"""Branch format with last-revision
1051
1052
Unlike previous formats, this has no explicit revision history. Instead,
1053
this just stores the last-revision, and the left-hand history leading
1054
up to there is the history.
1055
1056
This format was introduced in bzr 0.15
1057
"""
1058
1059
def get_format_string(self):
1060
"""See BranchFormat.get_format_string()."""
1061
return "Bazaar Branch Format 6 (bzr 0.15)\n"
1062
1063
def get_format_description(self):
1064
"""See BranchFormat.get_format_description()."""
1065
return "Branch format 6"
1066
1067
def initialize(self, a_bzrdir):
1068
"""Create a branch of this format in a_bzrdir."""
1069
utf8_files = [('last-revision', '0 null:\n'),
1070
('branch-name', ''),
1071
('branch.conf', ''),
1072
('tags', ''),
1073
]
1074
return self._initialize_helper(a_bzrdir, utf8_files)
1075
1076
def open(self, a_bzrdir, _found=False):
1077
"""Return the branch object for a_bzrdir
1078
1079
_found is a private parameter, do not use it. It is used to indicate
1080
if format probing has already be done.
1081
"""
1082
if not _found:
1083
format = BranchFormat.find_format(a_bzrdir)
1084
assert format.__class__ == self.__class__
1085
transport = a_bzrdir.get_branch_transport(None)
1086
control_files = lockable_files.LockableFiles(transport, 'lock',
1087
lockdir.LockDir)
1088
return BzrBranch6(_format=self,
1089
_control_files=control_files,
1090
a_bzrdir=a_bzrdir,
1091
_repository=a_bzrdir.find_repository())
1092
1093
def supports_tags(self):
1094
return True
1095
1096
1097
class BranchReferenceFormat(BranchFormat):
1098
"""Bzr branch reference format.
1099
1100
Branch references are used in implementing checkouts, they
1101
act as an alias to the real branch which is at some other url.
1102
1103
This format has:
1104
- A location file
1105
- a format string
1106
"""
1107
1108
def get_format_string(self):
1109
"""See BranchFormat.get_format_string()."""
1110
return "Bazaar-NG Branch Reference Format 1\n"
1111
1112
def get_format_description(self):
1113
"""See BranchFormat.get_format_description()."""
1114
return "Checkout reference format 1"
1115
1116
def initialize(self, a_bzrdir, target_branch=None):
1117
"""Create a branch of this format in a_bzrdir."""
1118
if target_branch is None:
1119
# this format does not implement branch itself, thus the implicit
1120
# creation contract must see it as uninitializable
1121
raise errors.UninitializableFormat(self)
1122
mutter('creating branch reference in %s', a_bzrdir.transport.base)
1123
branch_transport = a_bzrdir.get_branch_transport(self)
1124
branch_transport.put_bytes('location',
1125
target_branch.bzrdir.root_transport.base)
1126
branch_transport.put_bytes('format', self.get_format_string())
1127
return self.open(a_bzrdir, _found=True)
1128
1129
def __init__(self):
1130
super(BranchReferenceFormat, self).__init__()
1131
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1132
1133
def _make_reference_clone_function(format, a_branch):
1134
"""Create a clone() routine for a branch dynamically."""
1135
def clone(to_bzrdir, revision_id=None):
1136
"""See Branch.clone()."""
1137
return format.initialize(to_bzrdir, a_branch)
1138
# cannot obey revision_id limits when cloning a reference ...
1139
# FIXME RBC 20060210 either nuke revision_id for clone, or
1140
# emit some sort of warning/error to the caller ?!
1141
return clone
1142
1143
def open(self, a_bzrdir, _found=False):
1144
"""Return the branch that the branch reference in a_bzrdir points at.
1145
1146
_found is a private parameter, do not use it. It is used to indicate
1147
if format probing has already be done.
1148
"""
1149
if not _found:
1150
format = BranchFormat.find_format(a_bzrdir)
1151
assert format.__class__ == self.__class__
1152
transport = a_bzrdir.get_branch_transport(None)
1153
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
1154
result = real_bzrdir.open_branch()
1155
# this changes the behaviour of result.clone to create a new reference
1156
# rather than a copy of the content of the branch.
1157
# I did not use a proxy object because that needs much more extensive
1158
# testing, and we are only changing one behaviour at the moment.
1159
# If we decide to alter more behaviours - i.e. the implicit nickname
1160
# then this should be refactored to introduce a tested proxy branch
1161
# and a subclass of that for use in overriding clone() and ....
1162
# - RBC 20060210
1163
result.clone = self._make_reference_clone_function(result)
1164
return result
1165
1166
1167
# formats which have no format string are not discoverable
1168
# and not independently creatable, so are not registered.
1169
__default_format = BzrBranchFormat5()
1170
BranchFormat.register_format(__default_format)
1171
BranchFormat.register_format(BranchReferenceFormat())
1172
BranchFormat.register_format(BzrBranchFormat6())
1173
BranchFormat.set_default_format(__default_format)
1174
_legacy_formats = [BzrBranchFormat4(),
1175
]
1176
1177
class BzrBranch(Branch):
1178
"""A branch stored in the actual filesystem.
1179
1180
Note that it's "local" in the context of the filesystem; it doesn't
1181
really matter if it's on an nfs/smb/afs/coda/... share, as long as
1182
it's writable, and can be accessed via the normal filesystem API.
1183
"""
1184
1185
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
1186
relax_version_check=DEPRECATED_PARAMETER, _format=None,
1187
_control_files=None, a_bzrdir=None, _repository=None):
1188
"""Create new branch object at a particular location.
1189
1190
transport -- A Transport object, defining how to access files.
1191
1192
init -- If True, create new control files in a previously
1193
unversioned directory. If False, the branch must already
1194
be versioned.
1195
1196
relax_version_check -- If true, the usual check for the branch
1197
version is not applied. This is intended only for
1198
upgrade/recovery type use; it's not guaranteed that
1199
all operations will work on old format branches.
1200
"""
1201
Branch.__init__(self)
1202
if a_bzrdir is None:
1203
self.bzrdir = bzrdir.BzrDir.open(transport.base)
1204
else:
1205
self.bzrdir = a_bzrdir
1206
# self._transport used to point to the directory containing the
1207
# control directory, but was not used - now it's just the transport
1208
# for the branch control files. mbp 20070212
1209
self._base = self.bzrdir.transport.clone('..').base
1210
self._format = _format
1211
if _control_files is None:
1212
raise ValueError('BzrBranch _control_files is None')
1213
self.control_files = _control_files
1214
self._transport = _control_files._transport
1215
if deprecated_passed(init):
1216
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
1217
"deprecated as of bzr 0.8. Please use Branch.create().",
1218
DeprecationWarning,
1219
stacklevel=2)
1220
if init:
1221
# this is slower than before deprecation, oh well never mind.
1222
# -> its deprecated.
1223
self._initialize(transport.base)
1224
self._check_format(_format)
1225
if deprecated_passed(relax_version_check):
1226
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
1227
"relax_version_check parameter is deprecated as of bzr 0.8. "
1228
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
1229
"open() method.",
1230
DeprecationWarning,
1231
stacklevel=2)
1232
if (not relax_version_check
1233
and not self._format.is_supported()):
1234
raise errors.UnsupportedFormatError(format=fmt)
1235
if deprecated_passed(transport):
1236
warn("BzrBranch.__init__(transport=XXX...): The transport "
1237
"parameter is deprecated as of bzr 0.8. "
1238
"Please use Branch.open, or bzrdir.open_branch().",
1239
DeprecationWarning,
1240
stacklevel=2)
1241
self.repository = _repository
1242
1243
def __str__(self):
1244
return '%s(%r)' % (self.__class__.__name__, self.base)
1245
1246
__repr__ = __str__
1247
1248
def _get_base(self):
1249
"""Returns the directory containing the control directory."""
1250
return self._base
1251
1252
base = property(_get_base, doc="The URL for the root of this branch.")
1253
1254
def _finish_transaction(self):
1255
"""Exit the current transaction."""
1256
return self.control_files._finish_transaction()
1257
1258
def get_transaction(self):
1259
"""Return the current active transaction.
1260
1261
If no transaction is active, this returns a passthrough object
1262
for which all data is immediately flushed and no caching happens.
1263
"""
1264
# this is an explicit function so that we can do tricky stuff
1265
# when the storage in rev_storage is elsewhere.
1266
# we probably need to hook the two 'lock a location' and
1267
# 'have a transaction' together more delicately, so that
1268
# we can have two locks (branch and storage) and one transaction
1269
# ... and finishing the transaction unlocks both, but unlocking
1270
# does not. - RBC 20051121
1271
return self.control_files.get_transaction()
1272
1273
def _set_transaction(self, transaction):
1274
"""Set a new active transaction."""
1275
return self.control_files._set_transaction(transaction)
1276
1277
def abspath(self, name):
1278
"""See Branch.abspath."""
1279
return self.control_files._transport.abspath(name)
1280
1281
def _check_format(self, format):
1282
"""Identify the branch format if needed.
1283
1284
The format is stored as a reference to the format object in
1285
self._format for code that needs to check it later.
1286
1287
The format parameter is either None or the branch format class
1288
used to open this branch.
1289
1290
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
1291
"""
1292
if format is None:
1293
format = BranchFormat.find_format(self.bzrdir)
1294
self._format = format
1295
mutter("got branch format %s", self._format)
1296
1297
@needs_read_lock
1298
def get_root_id(self):
1299
"""See Branch.get_root_id."""
1300
tree = self.repository.revision_tree(self.last_revision())
1301
return tree.inventory.root.file_id
1302
1303
def is_locked(self):
1304
return self.control_files.is_locked()
1305
1306
def lock_write(self):
1307
self.repository.lock_write()
1308
try:
1309
self.control_files.lock_write()
1310
except:
1311
self.repository.unlock()
1312
raise
1313
1314
def lock_read(self):
1315
self.repository.lock_read()
1316
try:
1317
self.control_files.lock_read()
1318
except:
1319
self.repository.unlock()
1320
raise
1321
1322
def unlock(self):
1323
# TODO: test for failed two phase locks. This is known broken.
1324
try:
1325
self.control_files.unlock()
1326
finally:
1327
self.repository.unlock()
1328
1329
def peek_lock_mode(self):
1330
if self.control_files._lock_count == 0:
1331
return None
1332
else:
1333
return self.control_files._lock_mode
1334
1335
def get_physical_lock_status(self):
1336
return self.control_files.get_physical_lock_status()
1337
1338
@needs_read_lock
1339
def print_file(self, file, revision_id):
1340
"""See Branch.print_file."""
1341
return self.repository.print_file(file, revision_id)
1342
1343
@needs_write_lock
1344
def append_revision(self, *revision_ids):
1345
"""See Branch.append_revision."""
1346
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1347
for revision_id in revision_ids:
1348
_mod_revision.check_not_reserved_id(revision_id)
1349
mutter("add {%s} to revision-history" % revision_id)
1350
rev_history = self.revision_history()
1351
rev_history.extend(revision_ids)
1352
self.set_revision_history(rev_history)
1353
1354
def _write_revision_history(self, history):
1355
"""Factored out of set_revision_history.
1356
1357
This performs the actual writing to disk.
1358
It is intended to be called by BzrBranch5.set_revision_history."""
1359
self.control_files.put_bytes(
1360
'revision-history', '\n'.join(history))
1361
1362
@needs_write_lock
1363
def set_revision_history(self, rev_history):
1364
"""See Branch.set_revision_history."""
1365
rev_history = [osutils.safe_revision_id(r) for r in rev_history]
1366
self._write_revision_history(rev_history)
1367
transaction = self.get_transaction()
1368
history = transaction.map.find_revision_history()
1369
if history is not None:
1370
# update the revision history in the identity map.
1371
history[:] = list(rev_history)
1372
# this call is disabled because revision_history is
1373
# not really an object yet, and the transaction is for objects.
1374
# transaction.register_dirty(history)
1375
else:
1376
transaction.map.add_revision_history(rev_history)
1377
# this call is disabled because revision_history is
1378
# not really an object yet, and the transaction is for objects.
1379
# transaction.register_clean(history)
1380
for hook in Branch.hooks['set_rh']:
1381
hook(self, rev_history)
1382
1383
@needs_write_lock
1384
def set_last_revision_info(self, revno, revision_id):
1385
revision_id = osutils.safe_revision_id(revision_id)
1386
history = self._lefthand_history(revision_id)
1387
assert len(history) == revno, '%d != %d' % (len(history), revno)
1388
self.set_revision_history(history)
1389
1390
def _gen_revision_history(self):
1391
history = self.control_files.get('revision-history').read().split('\n')
1392
if history[-1:] == ['']:
1393
# There shouldn't be a trailing newline, but just in case.
1394
history.pop()
1395
return history
1396
1397
@needs_read_lock
1398
def revision_history(self):
1399
"""See Branch.revision_history."""
1400
transaction = self.get_transaction()
1401
history = transaction.map.find_revision_history()
1402
if history is not None:
1403
# mutter("cache hit for revision-history in %s", self)
1404
return list(history)
1405
history = self._gen_revision_history()
1406
transaction.map.add_revision_history(history)
1407
# this call is disabled because revision_history is
1408
# not really an object yet, and the transaction is for objects.
1409
# transaction.register_clean(history, precious=True)
1410
return list(history)
1411
1412
def _lefthand_history(self, revision_id, last_rev=None,
1413
other_branch=None):
1414
# stop_revision must be a descendant of last_revision
1415
stop_graph = self.repository.get_revision_graph(revision_id)
1416
if last_rev is not None and last_rev not in stop_graph:
1417
# our previous tip is not merged into stop_revision
1418
raise errors.DivergedBranches(self, other_branch)
1419
# make a new revision history from the graph
1420
current_rev_id = revision_id
1421
new_history = []
1422
while current_rev_id not in (None, _mod_revision.NULL_REVISION):
1423
new_history.append(current_rev_id)
1424
current_rev_id_parents = stop_graph[current_rev_id]
1425
try:
1426
current_rev_id = current_rev_id_parents[0]
1427
except IndexError:
1428
current_rev_id = None
1429
new_history.reverse()
1430
return new_history
1431
1432
@needs_write_lock
1433
def generate_revision_history(self, revision_id, last_rev=None,
1434
other_branch=None):
1435
"""Create a new revision history that will finish with revision_id.
1436
1437
:param revision_id: the new tip to use.
1438
:param last_rev: The previous last_revision. If not None, then this
1439
must be a ancestory of revision_id, or DivergedBranches is raised.
1440
:param other_branch: The other branch that DivergedBranches should
1441
raise with respect to.
1442
"""
1443
revision_id = osutils.safe_revision_id(revision_id)
1444
self.set_revision_history(self._lefthand_history(revision_id,
1445
last_rev, other_branch))
1446
1447
@needs_write_lock
1448
def update_revisions(self, other, stop_revision=None):
1449
"""See Branch.update_revisions."""
1450
other.lock_read()
1451
try:
1452
if stop_revision is None:
1453
stop_revision = other.last_revision()
1454
if stop_revision is None:
1455
# if there are no commits, we're done.
1456
return
1457
else:
1458
stop_revision = osutils.safe_revision_id(stop_revision)
1459
# whats the current last revision, before we fetch [and change it
1460
# possibly]
1461
last_rev = self.last_revision()
1462
# we fetch here regardless of whether we need to so that we pickup
1463
# filled in ghosts.
1464
self.fetch(other, stop_revision)
1465
my_ancestry = self.repository.get_ancestry(last_rev)
1466
if stop_revision in my_ancestry:
1467
# last_revision is a descendant of stop_revision
1468
return
1469
self.generate_revision_history(stop_revision, last_rev=last_rev,
1470
other_branch=other)
1471
finally:
1472
other.unlock()
1473
1474
def basis_tree(self):
1475
"""See Branch.basis_tree."""
1476
return self.repository.revision_tree(self.last_revision())
1477
1478
@deprecated_method(zero_eight)
1479
def working_tree(self):
1480
"""Create a Working tree object for this branch."""
1481
1482
from bzrlib.transport.local import LocalTransport
1483
if (self.base.find('://') != -1 or
1484
not isinstance(self._transport, LocalTransport)):
1485
raise NoWorkingTree(self.base)
1486
return self.bzrdir.open_workingtree()
1487
1488
@needs_write_lock
1489
def pull(self, source, overwrite=False, stop_revision=None,
1490
_hook_master=None, _run_hooks=True):
1491
"""See Branch.pull.
1492
1493
:param _hook_master: Private parameter - set the branch to
1494
be supplied as the master to push hooks.
1495
:param _run_hooks: Private parameter - allow disabling of
1496
hooks, used when pushing to a master branch.
1497
"""
1498
result = PullResult()
1499
result.source_branch = source
1500
result.target_branch = self
1501
source.lock_read()
1502
try:
1503
result.old_revno, result.old_revid = self.last_revision_info()
1504
try:
1505
self.update_revisions(source, stop_revision)
1506
except DivergedBranches:
1507
if not overwrite:
1508
raise
1509
if overwrite:
1510
if stop_revision is None:
1511
stop_revision = source.last_revision()
1512
self.generate_revision_history(stop_revision)
1513
result.tag_conflicts = source.tags.merge_to(self.tags)
1514
result.new_revno, result.new_revid = self.last_revision_info()
1515
if _hook_master:
1516
result.master_branch = _hook_master
1517
result.local_branch = self
1518
else:
1519
result.master_branch = self
1520
result.local_branch = None
1521
if _run_hooks:
1522
for hook in Branch.hooks['post_pull']:
1523
hook(result)
1524
finally:
1525
source.unlock()
1526
return result
1527
1528
def _get_parent_location(self):
1529
_locs = ['parent', 'pull', 'x-pull']
1530
for l in _locs:
1531
try:
1532
return self.control_files.get(l).read().strip('\n')
1533
except NoSuchFile:
1534
pass
1535
return None
1536
1537
@needs_read_lock
1538
def push(self, target, overwrite=False, stop_revision=None,
1539
_hook_master=None, _run_hooks=True):
1540
"""See Branch.push.
1541
1542
:param _hook_master: Private parameter - set the branch to
1543
be supplied as the master to push hooks.
1544
:param _run_hooks: Private parameter - allow disabling of
1545
hooks, used when pushing to a master branch.
1546
"""
1547
result = PushResult()
1548
result.source_branch = self
1549
result.target_branch = target
1550
target.lock_write()
1551
try:
1552
result.old_revno, result.old_revid = target.last_revision_info()
1553
try:
1554
target.update_revisions(self, stop_revision)
1555
except DivergedBranches:
1556
if not overwrite:
1557
raise
1558
if overwrite:
1559
target.set_revision_history(self.revision_history())
1560
result.tag_conflicts = self.tags.merge_to(target.tags)
1561
result.new_revno, result.new_revid = target.last_revision_info()
1562
if _hook_master:
1563
result.master_branch = _hook_master
1564
result.local_branch = target
1565
else:
1566
result.master_branch = target
1567
result.local_branch = None
1568
if _run_hooks:
1569
for hook in Branch.hooks['post_push']:
1570
hook(result)
1571
finally:
1572
target.unlock()
1573
return result
1574
1575
def get_parent(self):
1576
"""See Branch.get_parent."""
1577
1578
assert self.base[-1] == '/'
1579
parent = self._get_parent_location()
1580
if parent is None:
1581
return parent
1582
# This is an old-format absolute path to a local branch
1583
# turn it into a url
1584
if parent.startswith('/'):
1585
parent = urlutils.local_path_to_url(parent.decode('utf8'))
1586
try:
1587
return urlutils.join(self.base[:-1], parent)
1588
except errors.InvalidURLJoin, e:
1589
raise errors.InaccessibleParent(parent, self.base)
1590
1591
def get_push_location(self):
1592
"""See Branch.get_push_location."""
1593
push_loc = self.get_config().get_user_option('push_location')
1594
return push_loc
1595
1596
def set_push_location(self, location):
1597
"""See Branch.set_push_location."""
1598
self.get_config().set_user_option(
1599
'push_location', location,
1600
store=_mod_config.STORE_LOCATION_NORECURSE)
1601
1602
@needs_write_lock
1603
def set_parent(self, url):
1604
"""See Branch.set_parent."""
1605
# TODO: Maybe delete old location files?
1606
# URLs should never be unicode, even on the local fs,
1607
# FIXUP this and get_parent in a future branch format bump:
1608
# read and rewrite the file, and have the new format code read
1609
# using .get not .get_utf8. RBC 20060125
1610
if url is not None:
1611
if isinstance(url, unicode):
1612
try:
1613
url = url.encode('ascii')
1614
except UnicodeEncodeError:
1615
raise bzrlib.errors.InvalidURL(url,
1616
"Urls must be 7-bit ascii, "
1617
"use bzrlib.urlutils.escape")
1618
url = urlutils.relative_url(self.base, url)
1619
self._set_parent_location(url)
1620
1621
def _set_parent_location(self, url):
1622
if url is None:
1623
self.control_files._transport.delete('parent')
1624
else:
1625
assert isinstance(url, str)
1626
self.control_files.put_bytes('parent', url + '\n')
1627
1628
@deprecated_function(zero_nine)
1629
def tree_config(self):
1630
"""DEPRECATED; call get_config instead.
1631
TreeConfig has become part of BranchConfig."""
1632
return TreeConfig(self)
1633
1634
1635
class BzrBranch5(BzrBranch):
1636
"""A format 5 branch. This supports new features over plan branches.
1637
1638
It has support for a master_branch which is the data for bound branches.
1639
"""
1640
1641
def __init__(self,
1642
_format,
1643
_control_files,
1644
a_bzrdir,
1645
_repository):
1646
super(BzrBranch5, self).__init__(_format=_format,
1647
_control_files=_control_files,
1648
a_bzrdir=a_bzrdir,
1649
_repository=_repository)
1650
1651
@needs_write_lock
1652
def pull(self, source, overwrite=False, stop_revision=None,
1653
_run_hooks=True):
1654
"""Extends branch.pull to be bound branch aware.
1655
1656
:param _run_hooks: Private parameter used to force hook running
1657
off during bound branch double-pushing.
1658
"""
1659
bound_location = self.get_bound_location()
1660
master_branch = None
1661
if bound_location and source.base != bound_location:
1662
# not pulling from master, so we need to update master.
1663
master_branch = self.get_master_branch()
1664
master_branch.lock_write()
1665
try:
1666
if master_branch:
1667
# pull from source into master.
1668
master_branch.pull(source, overwrite, stop_revision,
1669
_run_hooks=False)
1670
return super(BzrBranch5, self).pull(source, overwrite,
1671
stop_revision, _hook_master=master_branch,
1672
_run_hooks=_run_hooks)
1673
finally:
1674
if master_branch:
1675
master_branch.unlock()
1676
1677
@needs_read_lock
1678
def push(self, target, overwrite=False, stop_revision=None):
1679
"""Updates branch.push to be bound branch aware."""
1680
bound_location = target.get_bound_location()
1681
master_branch = None
1682
if bound_location and target.base != bound_location:
1683
# not pushing to master, so we need to update master.
1684
master_branch = target.get_master_branch()
1685
master_branch.lock_write()
1686
try:
1687
if master_branch:
1688
# push into the master from this branch.
1689
super(BzrBranch5, self).push(master_branch, overwrite,
1690
stop_revision, _run_hooks=False)
1691
# and push into the target branch from this. Note that we push from
1692
# this branch again, because its considered the highest bandwidth
1693
# repository.
1694
return super(BzrBranch5, self).push(target, overwrite,
1695
stop_revision, _hook_master=master_branch)
1696
finally:
1697
if master_branch:
1698
master_branch.unlock()
1699
1700
def get_bound_location(self):
1701
try:
1702
return self.control_files.get_utf8('bound').read()[:-1]
1703
except errors.NoSuchFile:
1704
return None
1705
1706
@needs_read_lock
1707
def get_master_branch(self):
1708
"""Return the branch we are bound to.
1709
1710
:return: Either a Branch, or None
1711
1712
This could memoise the branch, but if thats done
1713
it must be revalidated on each new lock.
1714
So for now we just don't memoise it.
1715
# RBC 20060304 review this decision.
1716
"""
1717
bound_loc = self.get_bound_location()
1718
if not bound_loc:
1719
return None
1720
try:
1721
return Branch.open(bound_loc)
1722
except (errors.NotBranchError, errors.ConnectionError), e:
1723
raise errors.BoundBranchConnectionFailure(
1724
self, bound_loc, e)
1725
1726
@needs_write_lock
1727
def set_bound_location(self, location):
1728
"""Set the target where this branch is bound to.
1729
1730
:param location: URL to the target branch
1731
"""
1732
if location:
1733
self.control_files.put_utf8('bound', location+'\n')
1734
else:
1735
try:
1736
self.control_files._transport.delete('bound')
1737
except NoSuchFile:
1738
return False
1348
1739
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
1740
1741
@needs_write_lock
1742
def bind(self, other):
1743
"""Bind this branch to the branch other.
1744
1745
This does not push or pull data between the branches, though it does
1746
check for divergence to raise an error when the branches are not
1747
either the same, or one a prefix of the other. That behaviour may not
1748
be useful, so that check may be removed in future.
1749
1750
:param other: The branch to bind to
1751
:type other: Branch
1752
"""
1753
# TODO: jam 20051230 Consider checking if the target is bound
1754
# It is debatable whether you should be able to bind to
1755
# a branch which is itself bound.
1756
# Committing is obviously forbidden,
1757
# but binding itself may not be.
1758
# Since we *have* to check at commit time, we don't
1759
# *need* to check here
1760
1761
# we want to raise diverged if:
1762
# last_rev is not in the other_last_rev history, AND
1763
# other_last_rev is not in our history, and do it without pulling
1764
# history around
1765
last_rev = self.last_revision()
1766
if last_rev is not None:
1767
other.lock_read()
1768
try:
1769
other_last_rev = other.last_revision()
1770
if other_last_rev is not None:
1771
# neither branch is new, we have to do some work to
1772
# ascertain diversion.
1773
remote_graph = other.repository.get_revision_graph(
1774
other_last_rev)
1775
local_graph = self.repository.get_revision_graph(last_rev)
1776
if (last_rev not in remote_graph and
1777
other_last_rev not in local_graph):
1778
raise errors.DivergedBranches(self, other)
1779
finally:
1780
other.unlock()
1781
self.set_bound_location(other.base)
1782
1783
@needs_write_lock
1784
def unbind(self):
1785
"""If bound, unbind"""
1786
return self.set_bound_location(None)
1787
1788
@needs_write_lock
1789
def update(self):
1790
"""Synchronise this branch with the master branch if any.
1791
1792
:return: None or the last_revision that was pivoted out during the
1793
update.
1794
"""
1795
master = self.get_master_branch()
1796
if master is not None:
1797
old_tip = self.last_revision()
1798
self.pull(master, overwrite=True)
1799
if old_tip in self.repository.get_ancestry(self.last_revision()):
1800
return None
1801
return old_tip
1802
return None
1803
1804
1805
class BzrBranchExperimental(BzrBranch5):
1806
"""Bzr experimental branch format
1807
1808
This format has:
1809
- a revision-history file.
1810
- a format string
1811
- a lock dir guarding the branch itself
1812
- all of this stored in a branch/ subdirectory
1813
- works with shared repositories.
1814
- a tag dictionary in the branch
1815
1816
This format is new in bzr 0.15, but shouldn't be used for real data,
1817
only for testing.
1818
1819
This class acts as it's own BranchFormat.
1820
"""
1821
1822
_matchingbzrdir = bzrdir.BzrDirMetaFormat1()
1823
1824
@classmethod
1825
def get_format_string(cls):
1826
"""See BranchFormat.get_format_string()."""
1827
return "Bazaar-NG branch format experimental\n"
1828
1829
@classmethod
1830
def get_format_description(cls):
1831
"""See BranchFormat.get_format_description()."""
1832
return "Experimental branch format"
1833
1834
@classmethod
1835
def _initialize_control_files(cls, a_bzrdir, utf8_files, lock_filename,
1836
lock_class):
1837
branch_transport = a_bzrdir.get_branch_transport(cls)
1838
control_files = lockable_files.LockableFiles(branch_transport,
1839
lock_filename, lock_class)
1840
control_files.create_lock()
1841
control_files.lock_write()
1842
try:
1843
for filename, content in utf8_files:
1844
control_files.put_utf8(filename, content)
1845
finally:
1846
control_files.unlock()
1847
1848
@classmethod
1849
def initialize(cls, a_bzrdir):
1850
"""Create a branch of this format in a_bzrdir."""
1851
utf8_files = [('format', cls.get_format_string()),
1852
('revision-history', ''),
1853
('branch-name', ''),
1854
('tags', ''),
1855
]
1856
cls._initialize_control_files(a_bzrdir, utf8_files,
1857
'lock', lockdir.LockDir)
1858
return cls.open(a_bzrdir, _found=True)
1859
1860
@classmethod
1861
def open(cls, a_bzrdir, _found=False):
1862
"""Return the branch object for a_bzrdir
1863
1864
_found is a private parameter, do not use it. It is used to indicate
1865
if format probing has already be done.
1866
"""
1867
if not _found:
1868
format = BranchFormat.find_format(a_bzrdir)
1869
assert format.__class__ == cls
1870
transport = a_bzrdir.get_branch_transport(None)
1871
control_files = lockable_files.LockableFiles(transport, 'lock',
1872
lockdir.LockDir)
1873
return cls(_format=cls,
1874
_control_files=control_files,
1875
a_bzrdir=a_bzrdir,
1876
_repository=a_bzrdir.find_repository())
1877
1878
@classmethod
1879
def is_supported(cls):
1880
return True
1881
1882
def _make_tags(self):
1883
return BasicTags(self)
1884
1885
@classmethod
1886
def supports_tags(cls):
1887
return True
1888
1889
1890
BranchFormat.register_format(BzrBranchExperimental)
1891
1892
1893
class BzrBranch6(BzrBranch5):
1894
1895
@needs_read_lock
1896
def last_revision_info(self):
1897
revision_string = self.control_files.get('last-revision').read()
1898
revno, revision_id = revision_string.rstrip('\n').split(' ', 1)
1899
revision_id = cache_utf8.get_cached_utf8(revision_id)
1900
revno = int(revno)
1901
return revno, revision_id
1902
1903
def last_revision(self):
1904
"""Return last revision id, or None"""
1905
revision_id = self.last_revision_info()[1]
1906
if revision_id == _mod_revision.NULL_REVISION:
1907
revision_id = None
1908
return revision_id
1909
1910
def _write_last_revision_info(self, revno, revision_id):
1911
"""Simply write out the revision id, with no checks.
1912
1913
Use set_last_revision_info to perform this safely.
1914
1915
Does not update the revision_history cache.
1916
Intended to be called by set_last_revision_info and
1917
_write_revision_history.
1918
"""
1919
if revision_id is None:
1920
revision_id = 'null:'
1921
out_string = '%d %s\n' % (revno, revision_id)
1922
self.control_files.put_bytes('last-revision', out_string)
1923
1924
@needs_write_lock
1925
def set_last_revision_info(self, revno, revision_id):
1926
revision_id = osutils.safe_revision_id(revision_id)
1927
if self._get_append_revisions_only():
1928
self._check_history_violation(revision_id)
1929
self._write_last_revision_info(revno, revision_id)
1930
transaction = self.get_transaction()
1931
cached_history = transaction.map.find_revision_history()
1932
if cached_history is not None:
1933
transaction.map.remove_object(cached_history)
1934
1935
def _check_history_violation(self, revision_id):
1936
last_revision = self.last_revision()
1937
if last_revision is None:
1938
return
1939
if last_revision not in self._lefthand_history(revision_id):
1940
raise errors.AppendRevisionsOnlyViolation(self.base)
1941
1942
def _gen_revision_history(self):
1943
"""Generate the revision history from last revision
1944
"""
1945
history = list(self.repository.iter_reverse_revision_history(
1946
self.last_revision()))
1947
history.reverse()
1948
return history
1949
1950
def _write_revision_history(self, history):
1951
"""Factored out of set_revision_history.
1952
1953
This performs the actual writing to disk, with format-specific checks.
1954
It is intended to be called by BzrBranch5.set_revision_history.
1955
"""
1956
if len(history) == 0:
1957
last_revision = 'null:'
1958
else:
1959
if history != self._lefthand_history(history[-1]):
1960
raise errors.NotLefthandHistory(history)
1961
last_revision = history[-1]
1962
if self._get_append_revisions_only():
1963
self._check_history_violation(last_revision)
1964
self._write_last_revision_info(len(history), last_revision)
1965
1966
@needs_write_lock
1967
def append_revision(self, *revision_ids):
1968
revision_ids = [osutils.safe_revision_id(r) for r in revision_ids]
1969
if len(revision_ids) == 0:
1970
return
1971
prev_revno, prev_revision = self.last_revision_info()
1972
for revision in self.repository.get_revisions(revision_ids):
1973
if prev_revision == _mod_revision.NULL_REVISION:
1974
if revision.parent_ids != []:
1975
raise errors.NotLeftParentDescendant(self, prev_revision,
1976
revision.revision_id)
1977
else:
1978
if revision.parent_ids[0] != prev_revision:
1979
raise errors.NotLeftParentDescendant(self, prev_revision,
1980
revision.revision_id)
1981
prev_revision = revision.revision_id
1982
self.set_last_revision_info(prev_revno + len(revision_ids),
1983
revision_ids[-1])
1984
1985
@needs_write_lock
1986
def _set_parent_location(self, url):
1987
"""Set the parent branch"""
1988
self._set_config_location('parent_location', url, make_relative=True)
1989
1990
@needs_read_lock
1991
def _get_parent_location(self):
1992
"""Set the parent branch"""
1993
return self._get_config_location('parent_location')
1994
1995
def set_push_location(self, location):
1996
"""See Branch.set_push_location."""
1997
self._set_config_location('push_location', location)
1998
1999
def set_bound_location(self, location):
2000
"""See Branch.set_push_location."""
2001
result = None
2002
config = self.get_config()
2003
if location is None:
2004
if config.get_user_option('bound') != 'True':
2005
return False
2006
else:
2007
config.set_user_option('bound', 'False')
2008
return True
2009
else:
2010
self._set_config_location('bound_location', location,
2011
config=config)
2012
config.set_user_option('bound', 'True')
2013
return True
2014
2015
def _get_bound_location(self, bound):
2016
"""Return the bound location in the config file.
2017
2018
Return None if the bound parameter does not match"""
2019
config = self.get_config()
2020
config_bound = (config.get_user_option('bound') == 'True')
2021
if config_bound != bound:
2022
return None
2023
return self._get_config_location('bound_location', config=config)
2024
2025
def get_bound_location(self):
2026
"""See Branch.set_push_location."""
2027
return self._get_bound_location(True)
2028
2029
def get_old_bound_location(self):
2030
"""See Branch.get_old_bound_location"""
2031
return self._get_bound_location(False)
2032
2033
def set_append_revisions_only(self, enabled):
2034
if enabled:
2035
value = 'True'
2036
else:
2037
value = 'False'
2038
self.get_config().set_user_option('append_revisions_only', value)
2039
2040
def _get_append_revisions_only(self):
2041
value = self.get_config().get_user_option('append_revisions_only')
2042
return value == 'True'
2043
2044
def _synchronize_history(self, destination, revision_id):
2045
"""Synchronize last revision and revision history between branches.
2046
2047
This version is most efficient when the destination is also a
2048
BzrBranch6, but works for BzrBranch5, as long as the destination's
2049
repository contains all the lefthand ancestors of the intended
2050
last_revision. If not, set_last_revision_info will fail.
2051
2052
:param destination: The branch to copy the history into
2053
:param revision_id: The revision-id to truncate history at. May
2054
be None to copy complete history.
2055
"""
2056
if revision_id is None:
2057
revno, revision_id = self.last_revision_info()
2058
else:
2059
revno = self.revision_id_to_revno(revision_id)
2060
destination.set_last_revision_info(revno, revision_id)
2061
2062
def _make_tags(self):
2063
return BasicTags(self)
2064
2065
2066
class BranchTestProviderAdapter(object):
2067
"""A tool to generate a suite testing multiple branch formats at once.
2068
2069
This is done by copying the test once for each transport and injecting
2070
the transport_server, transport_readonly_server, and branch_format
2071
classes into each copy. Each copy is also given a new id() to make it
2072
easy to identify.
2073
"""
2074
2075
def __init__(self, transport_server, transport_readonly_server, formats):
2076
self._transport_server = transport_server
2077
self._transport_readonly_server = transport_readonly_server
2078
self._formats = formats
2079
2080
def adapt(self, test):
2081
result = TestSuite()
2082
for branch_format, bzrdir_format in self._formats:
2083
new_test = deepcopy(test)
2084
new_test.transport_server = self._transport_server
2085
new_test.transport_readonly_server = self._transport_readonly_server
2086
new_test.bzrdir_format = bzrdir_format
2087
new_test.branch_format = branch_format
2088
def make_new_test_id():
2089
# the format can be either a class or an instance
2090
name = getattr(branch_format, '__name__',
2091
branch_format.__class__.__name__)
2092
new_id = "%s(%s)" % (new_test.id(), name)
2093
return lambda: new_id
2094
new_test.id = make_new_test_id()
2095
result.addTest(new_test)
2096
return result
2097
2098
2099
######################################################################
2100
# results of operations
2101
2102
2103
class _Result(object):
2104
2105
def _show_tag_conficts(self, to_file):
2106
if not getattr(self, 'tag_conflicts', None):
2107
return
2108
to_file.write('Conflicting tags:\n')
2109
for name, value1, value2 in self.tag_conflicts:
2110
to_file.write(' %s\n' % (name, ))
2111
2112
2113
class PullResult(_Result):
2114
"""Result of a Branch.pull operation.
2115
2116
:ivar old_revno: Revision number before pull.
2117
:ivar new_revno: Revision number after pull.
2118
:ivar old_revid: Tip revision id before pull.
2119
:ivar new_revid: Tip revision id after pull.
2120
:ivar source_branch: Source (local) branch object.
2121
:ivar master_branch: Master branch of the target, or None.
2122
:ivar target_branch: Target/destination branch object.
2123
"""
2124
2125
def __int__(self):
2126
# DEPRECATED: pull used to return the change in revno
2127
return self.new_revno - self.old_revno
2128
2129
def report(self, to_file):
2130
if self.old_revid == self.new_revid:
2131
to_file.write('No revisions to pull.\n')
2132
else:
2133
to_file.write('Now on revision %d.\n' % self.new_revno)
2134
self._show_tag_conficts(to_file)
2135
2136
2137
class PushResult(_Result):
2138
"""Result of a Branch.push operation.
2139
2140
:ivar old_revno: Revision number before push.
2141
:ivar new_revno: Revision number after push.
2142
:ivar old_revid: Tip revision id before push.
2143
:ivar new_revid: Tip revision id after push.
2144
:ivar source_branch: Source branch object.
2145
:ivar master_branch: Master branch of the target, or None.
2146
:ivar target_branch: Target/destination branch object.
2147
"""
2148
2149
def __int__(self):
2150
# DEPRECATED: push used to return the change in revno
2151
return self.new_revno - self.old_revno
2152
2153
def report(self, to_file):
2154
"""Write a human-readable description of the result."""
2155
if self.old_revid == self.new_revid:
2156
to_file.write('No new revisions to push.\n')
2157
else:
2158
to_file.write('Pushed up to revision %d.\n' % self.new_revno)
2159
self._show_tag_conficts(to_file)
2160
2161
2162
class BranchCheckResult(object):
2163
"""Results of checking branch consistency.
2164
2165
:see: Branch.check
2166
"""
2167
2168
def __init__(self, branch):
2169
self.branch = branch
2170
2171
def report_results(self, verbose):
2172
"""Report the check results via trace.note.
2173
2174
:param verbose: Requests more detailed display of what was checked,
2175
if any.
2176
"""
2177
note('checked branch %s format %s',
2178
self.branch.base,
2179
self.branch._format)
2180
2181
2182
class Converter5to6(object):
2183
"""Perform an in-place upgrade of format 5 to format 6"""
2184
2185
def convert(self, branch):
2186
# Data for 5 and 6 can peacefully coexist.
2187
format = BzrBranchFormat6()
2188
new_branch = format.open(branch.bzrdir, _found=True)
2189
2190
# Copy source data into target
2191
new_branch.set_last_revision_info(*branch.last_revision_info())
2192
new_branch.set_parent(branch.get_parent())
2193
new_branch.set_bound_location(branch.get_bound_location())
2194
new_branch.set_push_location(branch.get_push_location())
2195
2196
# New branch has no tags by default
2197
new_branch.tags._set_tag_dict({})
2198
2199
# Copying done; now update target format
2200
new_branch.control_files.put_utf8('format',
2201
format.get_format_string())
2202
2203
# Clean up old files
2204
new_branch.control_files._transport.delete('revision-history')
2205
try:
2206
branch.set_parent(None)
2207
except NoSuchFile:
2208
pass
2209
branch.set_bound_location(None)
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0