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- Committer: Robert Collins
- Date: 2006-03-01 03:26:23 UTC
- mto: (1594.2.4 integration)
- mto: This revision was merged to the branch mainline in revision 1596.
- Revision ID: robertc@robertcollins.net-20060301032623-9d3c073e102f2239
Move WeaveStore down into bzrlib.store.versioned.weave.
- files added:
- BRANCH.TODO
- bzrlib/doc
- bzrlib/doc/api
- bzrlib/export
- bzrlib/store
- bzrlib/store/versioned
- bzrlib/tests/blackbox
- bzrlib/tests/branch_implementations
- bzrlib/tests/bzrdir_implementations
- bzrlib/tests/interrepository_implementations
- bzrlib/tests/repository_implementations
- bzrlib/tests/workingtree_implementations
- bzrlib/transport
- bzrlib/ui
- bzrlib/util
- bzrlib/util/configobj
- bzrlib/util/configobj/docs
- tools/doc_generate
- files removed:
- bzrlib/changeset.py
- patches
- plugins/changeset
- files renamed:
- plugins/ => bzrlib/plugins/
- bzrlib/store.py => bzrlib/store/__init__.py
- bzrlib/selftest/ => bzrlib/tests/
- bzrlib/selftest/teststatus.py => bzrlib/tests/blackbox/test_status.py
- bzrlib/selftest/blackbox.py => bzrlib/tests/blackbox/test_too_much.py
- bzrlib/selftest/versioning.py => bzrlib/tests/blackbox/test_versioning.py
- bzrlib/selftest/testbranch.py => bzrlib/tests/branch_implementations/test_branch.py
- bzrlib/selftest/testdiff.py => bzrlib/tests/test_diff.py
- bzrlib/selftest/testhashcache.py => bzrlib/tests/test_hashcache.py
- bzrlib/selftest/testinv.py => bzrlib/tests/test_inv.py
- bzrlib/selftest/testlog.py => bzrlib/tests/test_log.py
- bzrlib/selftest/testmerge3.py => bzrlib/tests/test_merge3.py
- bzrlib/selftest/plugins.py => bzrlib/tests/test_plugins.py
- bzrlib/selftest/testrevision.py => bzrlib/tests/test_revision.py
- bzrlib/selftest/testrevisionnamespaces.py => bzrlib/tests/test_revisionnamespaces.py
- tools/testweave.py => bzrlib/tests/test_weave.py
- bzrlib/selftest/whitebox.py => bzrlib/tests/test_whitebox.py
- effbot/ => bzrlib/util/effbot/
- elementtree/ => bzrlib/util/elementtree/
- urlgrabber/ => bzrlib/util/urlgrabber/
- bzrlib/xml.py => bzrlib/xml_serializer.py
- bzrlib/newinventory.py => contrib/newinventory.py
- bzr-man.py => tools/doc_generate/autodoc_man.py
- files modified:
- .bzrignore
- bzr *
- setup.py *
added
removed
bzrlib/branch.py
1
# Copyright (C) 2005 Canonical Ltd
1
# Copyright (C) 2005, 2006 Canonical Ltd
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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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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from copy import deepcopy
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from cStringIO import StringIO
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import errno
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import os
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import shutil
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23
import sys
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import os
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from unittest import TestSuite
25
from warnings import warn
26
try:
27
import xml.sax.saxutils
28
except ImportError:
29
raise ImportError("We were unable to import 'xml.sax.saxutils',"
30
" most likely you have an xml.pyc or xml.pyo file"
31
" lying around in your bzrlib directory."
32
" Please remove it.")
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20
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import bzrlib
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import bzrlib.bzrdir as bzrdir
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from bzrlib.config import TreeConfig
38
from bzrlib.decorators import needs_read_lock, needs_write_lock
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from bzrlib.delta import compare_trees
40
import bzrlib.errors as errors
41
from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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NoSuchRevision, HistoryMissing, NotBranchError,
43
DivergedBranches, LockError,
44
UninitializableFormat,
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UnlistableStore,
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UnlistableBranch, NoSuchFile, NotVersionedError,
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NoWorkingTree)
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import bzrlib.inventory as inventory
49
from bzrlib.inventory import Inventory
50
from bzrlib.lockable_files import LockableFiles
51
from bzrlib.osutils import (isdir, quotefn,
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rename, splitpath, sha_file,
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file_kind, abspath, normpath, pathjoin,
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safe_unicode,
55
)
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from bzrlib.textui import show_status
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57
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
26
from bzrlib.errors import BzrError, InvalidRevisionNumber, InvalidRevisionId
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import bzrlib.errors
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.repository import Repository
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from bzrlib.revision import (
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get_intervening_revisions,
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is_ancestor,
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NULL_REVISION,
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Revision,
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)
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from bzrlib.store import copy_all
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from bzrlib.symbol_versioning import *
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import bzrlib.transactions as transactions
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from bzrlib.transport import Transport, get_transport
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from bzrlib.tree import EmptyTree, RevisionTree
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import bzrlib.ui
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import bzrlib.xml5
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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BZR_BRANCH_FORMAT_6 = "Bazaar-NG branch, format 6\n"
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# TODO: Maybe include checks for common corruption of newlines, etc?
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# TODO: Some operations like log might retrieve the same revisions
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# repeatedly to calculate deltas. We could perhaps have a weakref
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# cache in memory to make this faster.
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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import remotebranch
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return remotebranch.RemoteBranch(f, **args)
47
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
83
while len(head) >= len(base):
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if head == base:
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break
86
head, tail = os.path.split(head)
87
if tail:
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s.insert(0, tail)
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else:
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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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):
127
def __init__(self, branch1, branch2):
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self.branch1 = branch1
129
self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
84
# 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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"""
98
# this is really an instance variable - FIXME move it there
99
# - 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)
180
self._make_control()
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elif find_root:
182
self.base = find_branch_root(base)
183
else:
184
self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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from errors import NotBranchError
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raise NotBranchError("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self._check_format()
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self.text_store = ImmutableStore(self.controlfilename('text-store'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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self.inventory_store = ImmutableStore(self.controlfilename('inventory-store'))
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def __str__(self):
198
return '%s(%r)' % (self.__class__.__name__, self.base)
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__repr__ = __str__
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def __del__(self):
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if self._lock_mode or self._lock:
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from warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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self._lock.unlock()
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def __init__(self, *ignored, **ignored_too):
103
raise NotImplementedError('The Branch class is abstract')
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@staticmethod
106
@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."""
109
return Branch.open(base, _unsupported=True)
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@staticmethod
112
def open(base, _unsupported=False):
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"""Open the repository rooted at base.
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For instance, if the repository is at URL/.bzr/repository,
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Repository.open(URL) -> a Repository instance.
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"""
118
control = bzrdir.BzrDir.open(base, _unsupported)
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return control.open_branch(_unsupported)
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@staticmethod
122
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.
131
If there is one, it is returned, along with the unused portion of url.
132
"""
133
control, relpath = bzrdir.BzrDir.open_containing(url)
134
return control.open_branch(), relpath
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@staticmethod
137
@deprecated_function(zero_eight)
138
def initialize(base):
139
"""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
142
through a BzrDir.
143
"""
144
return bzrdir.BzrDir.create_standalone_workingtree(base).branch
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def setup_caching(self, cache_root):
147
"""Subclasses that care about caching should override this, and set
148
up cached stores located under cache_root.
149
"""
150
# seems to be unused, 2006-01-13 mbp
151
warn('%s is deprecated' % self.setup_caching)
152
self.cache_root = cache_root
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def _get_nick(self):
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cfg = self.tree_config()
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return cfg.get_option(u"nickname", default=self.base.split('/')[-2])
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def _set_nick(self, nick):
159
cfg = self.tree_config()
160
cfg.set_option(nick, "nickname")
161
assert cfg.get_option("nickname") == nick
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nick = property(_get_nick, _set_nick)
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def lock_write(self):
213
if self._lock_mode:
214
if self._lock_mode != 'w':
215
from errors import LockError
216
raise LockError("can't upgrade to a write lock from %r" %
217
self._lock_mode)
218
self._lock_count += 1
219
else:
220
from bzrlib.lock import WriteLock
221
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self._lock = WriteLock(self.controlfilename('branch-lock'))
223
self._lock_mode = 'w'
224
self._lock_count = 1
225
226
227
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raise NotImplementedError('lock_write is abstract')
167
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def lock_read(self):
229
if self._lock_mode:
230
assert self._lock_mode in ('r', 'w'), \
231
"invalid lock mode %r" % self._lock_mode
232
self._lock_count += 1
233
else:
234
from bzrlib.lock import ReadLock
235
236
self._lock = ReadLock(self.controlfilename('branch-lock'))
237
self._lock_mode = 'r'
238
self._lock_count = 1
239
240
241
169
raise NotImplementedError('lock_read is abstract')
170
242
171
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
172
raise NotImplementedError('unlock is abstract')
173
174
def peek_lock_mode(self):
175
"""Return lock mode for the Branch: 'r', 'w' or None"""
176
raise NotImplementedError(self.peek_lock_mode)
254
177
255
178
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
179
"""Return absolute filename for something in the branch
304
180
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'])
181
XXX: Robert Collins 20051017 what is this used for? why is it a branch
182
method and not a tree method.
183
"""
184
raise NotImplementedError('abspath is abstract')
185
186
@needs_write_lock
187
def fetch(self, from_branch, last_revision=None, pb=None):
188
"""Copy revisions from from_branch into this branch.
189
190
:param from_branch: Where to copy from.
191
:param last_revision: What revision to stop at (None for at the end
192
of the branch.
193
:param pb: An optional progress bar to use.
194
195
Returns the copied revision count and the failed revisions in a tuple:
196
(copied, failures).
197
"""
198
if self.base == from_branch.base:
199
raise Exception("can't fetch from a branch to itself %s, %s" %
200
(self.base, to_branch.base))
201
if pb is None:
202
pb = bzrlib.ui.ui_factory.progress_bar()
203
204
from_branch.lock_read()
205
try:
206
if last_revision is None:
207
pb.update('get source history')
208
from_history = from_branch.revision_history()
209
if from_history:
210
last_revision = from_history[-1]
211
else:
212
# no history in the source branch
213
last_revision = NULL_REVISION
214
return self.repository.fetch(from_branch.repository,
215
revision_id=last_revision,
216
pb=pb)
217
finally:
218
from_branch.unlock()
339
219
340
220
def get_root_id(self):
341
221
"""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):
222
raise NotImplementedError('get_root_id is abstract')
223
224
def print_file(self, file, revision_id):
480
225
"""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
226
raise NotImplementedError('print_file is abstract')
568
227
569
228
def append_revision(self, *revision_ids):
570
from bzrlib.atomicfile import AtomicFile
571
572
for revision_id in revision_ids:
573
mutter("add {%s} to revision-history" % revision_id)
574
575
rev_history = self.revision_history()
576
rev_history.extend(revision_ids)
577
578
f = AtomicFile(self.controlfilename('revision-history'))
579
try:
580
for rev_id in rev_history:
581
print >>f, rev_id
582
f.commit()
583
finally:
584
f.close()
585
586
587
def get_revision_xml(self, revision_id):
588
"""Return XML file object for revision object."""
589
if not revision_id or not isinstance(revision_id, basestring):
590
raise InvalidRevisionId(revision_id)
591
592
self.lock_read()
593
try:
594
try:
595
return self.revision_store[revision_id]
596
except IndexError:
597
raise bzrlib.errors.NoSuchRevision(revision_id)
598
finally:
599
self.unlock()
600
601
602
def get_revision(self, revision_id):
603
"""Return the Revision object for a named revision"""
604
xml_file = self.get_revision_xml(revision_id)
605
606
try:
607
r = unpack_xml(Revision, xml_file)
608
except SyntaxError, e:
609
raise bzrlib.errors.BzrError('failed to unpack revision_xml',
610
[revision_id,
611
str(e)])
612
613
assert r.revision_id == revision_id
614
return r
615
616
617
def get_revision_delta(self, revno):
618
"""Return the delta for one revision.
619
620
The delta is relative to its mainline predecessor, or the
621
empty tree for revision 1.
622
"""
623
assert isinstance(revno, int)
624
rh = self.revision_history()
625
if not (1 <= revno <= len(rh)):
626
raise InvalidRevisionNumber(revno)
627
628
# revno is 1-based; list is 0-based
629
630
new_tree = self.revision_tree(rh[revno-1])
631
if revno == 1:
632
old_tree = EmptyTree()
633
else:
634
old_tree = self.revision_tree(rh[revno-2])
635
636
return compare_trees(old_tree, new_tree)
637
638
639
640
def get_revision_sha1(self, revision_id):
641
"""Hash the stored value of a revision, and return it."""
642
# In the future, revision entries will be signed. At that
643
# point, it is probably best *not* to include the signature
644
# in the revision hash. Because that lets you re-sign
645
# the revision, (add signatures/remove signatures) and still
646
# have all hash pointers stay consistent.
647
# But for now, just hash the contents.
648
return bzrlib.osutils.sha_file(self.get_revision_xml(revision_id))
649
650
651
def get_inventory(self, inventory_id):
652
"""Get Inventory object by hash.
653
654
TODO: Perhaps for this and similar methods, take a revision
655
parameter which can be either an integer revno or a
656
string hash."""
657
from bzrlib.inventory import Inventory
658
from bzrlib.xml import unpack_xml
659
660
return unpack_xml(Inventory, self.inventory_store[inventory_id])
661
662
663
def get_inventory_sha1(self, inventory_id):
664
"""Return the sha1 hash of the inventory entry
665
"""
666
return sha_file(self.inventory_store[inventory_id])
667
668
669
def get_revision_inventory(self, revision_id):
670
"""Return inventory of a past revision."""
671
# bzr 0.0.6 imposes the constraint that the inventory_id
672
# must be the same as its revision, so this is trivial.
673
if revision_id == None:
674
from bzrlib.inventory import Inventory
675
return Inventory(self.get_root_id())
676
else:
677
return self.get_inventory(revision_id)
678
229
raise NotImplementedError('append_revision is abstract')
230
231
def set_revision_history(self, rev_history):
232
raise NotImplementedError('set_revision_history is abstract')
679
233
680
234
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
235
"""Return sequence of revision hashes on to this branch."""
236
raise NotImplementedError('revision_history is abstract')
738
237
739
238
def revno(self):
740
239
"""Return current revision number for this branch.
744
243
"""
745
244
return len(self.revision_history())
746
245
747
748
def last_patch(self):
749
"""Return last patch hash, or None if no history.
750
"""
246
def last_revision(self):
247
"""Return last patch hash, or None if no history."""
751
248
ph = self.revision_history()
752
249
if ph:
753
250
return ph[-1]
754
251
else:
755
252
return None
756
253
757
758
def missing_revisions(self, other, stop_revision=None):
759
"""
254
def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
255
"""Return a list of new revisions that would perfectly fit.
256
760
257
If self and other have not diverged, return a list of the revisions
761
258
present in other, but missing from self.
762
259
763
>>> from bzrlib.commit import commit
260
>>> from bzrlib.workingtree import WorkingTree
764
261
>>> bzrlib.trace.silent = True
765
>>> br1 = ScratchBranch()
766
>>> br2 = ScratchBranch()
262
>>> d1 = bzrdir.ScratchDir()
263
>>> br1 = d1.open_branch()
264
>>> wt1 = d1.open_workingtree()
265
>>> d2 = bzrdir.ScratchDir()
266
>>> br2 = d2.open_branch()
267
>>> wt2 = d2.open_workingtree()
767
268
>>> br1.missing_revisions(br2)
768
269
[]
769
>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
270
>>> wt2.commit("lala!", rev_id="REVISION-ID-1")
770
271
>>> br1.missing_revisions(br2)
771
272
[u'REVISION-ID-1']
772
273
>>> br2.missing_revisions(br1)
773
274
[]
774
>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
275
>>> wt1.commit("lala!", rev_id="REVISION-ID-1")
775
276
>>> br1.missing_revisions(br2)
776
277
[]
777
>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
278
>>> wt2.commit("lala!", rev_id="REVISION-ID-2A")
778
279
>>> br1.missing_revisions(br2)
779
280
[u'REVISION-ID-2A']
780
>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
281
>>> wt1.commit("lala!", rev_id="REVISION-ID-2B")
781
282
>>> br1.missing_revisions(br2)
782
283
Traceback (most recent call last):
783
DivergedBranches: These branches have diverged.
284
DivergedBranches: These branches have diverged. Try merge.
784
285
"""
785
286
self_history = self.revision_history()
786
287
self_len = len(self_history)
793
294
794
295
if stop_revision is None:
795
296
stop_revision = other_len
796
elif stop_revision > other_len:
797
raise NoSuchRevision(self, stop_revision)
798
297
else:
298
assert isinstance(stop_revision, int)
299
if stop_revision > other_len:
300
raise bzrlib.errors.NoSuchRevision(self, stop_revision)
799
301
return other_history[self_len:stop_revision]
800
302
801
802
303
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
304
"""Pull in new perfect-fit revisions."""
305
raise NotImplementedError('update_revisions is abstract')
306
307
def pullable_revisions(self, other, stop_revision):
308
raise NotImplementedError('pullable_revisions is abstract')
309
310
def revision_id_to_revno(self, revision_id):
311
"""Given a revision id, return its revno"""
312
if revision_id is None:
313
return 0
314
history = self.revision_history()
315
try:
316
return history.index(revision_id) + 1
317
except ValueError:
318
raise bzrlib.errors.NoSuchRevision(self, revision_id)
319
320
def get_rev_id(self, revno, history=None):
321
"""Find the revision id of the specified revno."""
322
if revno == 0:
323
return None
324
if history is None:
325
history = self.revision_history()
326
elif revno <= 0 or revno > len(history):
327
raise bzrlib.errors.NoSuchRevision(self, revno)
328
return history[revno - 1]
329
330
def pull(self, source, overwrite=False, stop_revision=None):
331
raise NotImplementedError('pull is abstract')
1052
332
1053
333
def basis_tree(self):
1054
334
"""Return `Tree` object for last revision.
1055
335
1056
336
If there are no revisions yet, return an `EmptyTree`.
1057
337
"""
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
338
return self.repository.revision_tree(self.last_revision())
1065
339
1066
340
def rename_one(self, from_rel, to_rel):
1067
341
"""Rename one file.
1068
342
1069
343
This can change the directory or the filename or both.
1070
344
"""
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
345
raise NotImplementedError('rename_one is abstract')
1116
346
1117
347
def move(self, from_paths, to_name):
1118
348
"""Rename files.
1124
354
1125
355
Note that to_name is only the last component of the new name;
1126
356
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:
357
358
This returns a list of (from_path, to_path) pairs for each
359
entry that is moved.
360
"""
361
raise NotImplementedError('move is abstract')
362
363
def get_parent(self):
364
"""Return the parent location of the branch.
365
366
This is the default location for push/pull/missing. The usual
367
pattern is that the user can override it by specifying a
368
location.
369
"""
370
raise NotImplementedError('get_parent is abstract')
371
372
def get_push_location(self):
373
"""Return the None or the location to push this branch to."""
374
raise NotImplementedError('get_push_location is abstract')
375
376
def set_push_location(self, location):
377
"""Set a new push location for this branch."""
378
raise NotImplementedError('set_push_location is abstract')
379
380
def set_parent(self, url):
381
raise NotImplementedError('set_parent is abstract')
382
383
def check_revno(self, revno):
384
"""\
385
Check whether a revno corresponds to any revision.
386
Zero (the NULL revision) is considered valid.
387
"""
388
if revno != 0:
389
self.check_real_revno(revno)
390
391
def check_real_revno(self, revno):
392
"""\
393
Check whether a revno corresponds to a real revision.
394
Zero (the NULL revision) is considered invalid
395
"""
396
if revno < 1 or revno > self.revno():
397
raise InvalidRevisionNumber(revno)
398
399
@needs_read_lock
400
def clone(self, *args, **kwargs):
401
"""Clone this branch into to_bzrdir preserving all semantic values.
402
403
revision_id: if not None, the revision history in the new branch will
404
be truncated to end with revision_id.
405
"""
406
# for API compatability, until 0.8 releases we provide the old api:
407
# def clone(self, to_location, revision=None, basis_branch=None, to_branch_format=None):
408
# after 0.8 releases, the *args and **kwargs should be changed:
409
# def clone(self, to_bzrdir, revision_id=None):
410
if (kwargs.get('to_location', None) or
411
kwargs.get('revision', None) or
412
kwargs.get('basis_branch', None) or
413
(len(args) and isinstance(args[0], basestring))):
414
# backwards compatability api:
415
warn("Branch.clone() has been deprecated for BzrDir.clone() from"
416
" bzrlib 0.8.", DeprecationWarning, stacklevel=3)
417
# get basis_branch
418
if len(args) > 2:
419
basis_branch = args[2]
420
else:
421
basis_branch = kwargs.get('basis_branch', None)
422
if basis_branch:
423
basis = basis_branch.bzrdir
424
else:
425
basis = None
426
# get revision
427
if len(args) > 1:
428
revision_id = args[1]
429
else:
430
revision_id = kwargs.get('revision', None)
431
# get location
432
if len(args):
433
url = args[0]
434
else:
435
# no default to raise if not provided.
436
url = kwargs.get('to_location')
437
return self.bzrdir.clone(url,
438
revision_id=revision_id,
439
basis=basis).open_branch()
440
# new cleaner api.
441
# generate args by hand
442
if len(args) > 1:
443
revision_id = args[1]
444
else:
445
revision_id = kwargs.get('revision_id', None)
446
if len(args):
447
to_bzrdir = args[0]
448
else:
449
# no default to raise if not provided.
450
to_bzrdir = kwargs.get('to_bzrdir')
451
result = self._format.initialize(to_bzrdir)
452
self.copy_content_into(result, revision_id=revision_id)
453
return result
454
455
@needs_read_lock
456
def sprout(self, to_bzrdir, revision_id=None):
457
"""Create a new line of development from the branch, into to_bzrdir.
458
459
revision_id: if not None, the revision history in the new branch will
460
be truncated to end with revision_id.
461
"""
462
result = self._format.initialize(to_bzrdir)
463
self.copy_content_into(result, revision_id=revision_id)
464
result.set_parent(self.bzrdir.root_transport.base)
465
return result
466
467
@needs_read_lock
468
def copy_content_into(self, destination, revision_id=None):
469
"""Copy the content of self into destination.
470
471
revision_id: if not None, the revision history in the new branch will
472
be truncated to end with revision_id.
473
"""
474
new_history = self.revision_history()
475
if revision_id is not None:
476
try:
477
new_history = new_history[:new_history.index(revision_id) + 1]
478
except ValueError:
479
rev = self.repository.get_revision(revision_id)
480
new_history = rev.get_history(self.repository)[1:]
481
destination.set_revision_history(new_history)
482
parent = self.get_parent()
483
if parent:
484
destination.set_parent(parent)
485
486
487
class BranchFormat(object):
488
"""An encapsulation of the initialization and open routines for a format.
489
490
Formats provide three things:
491
* An initialization routine,
492
* a format string,
493
* an open routine.
494
495
Formats are placed in an dict by their format string for reference
496
during branch opening. Its not required that these be instances, they
497
can be classes themselves with class methods - it simply depends on
498
whether state is needed for a given format or not.
499
500
Once a format is deprecated, just deprecate the initialize and open
501
methods on the format class. Do not deprecate the object, as the
502
object will be created every time regardless.
503
"""
504
505
_default_format = None
506
"""The default format used for new branches."""
507
508
_formats = {}
509
"""The known formats."""
510
511
@classmethod
512
def find_format(klass, a_bzrdir):
513
"""Return the format for the branch object in a_bzrdir."""
514
try:
515
transport = a_bzrdir.get_branch_transport(None)
516
format_string = transport.get("format").read()
517
return klass._formats[format_string]
518
except NoSuchFile:
519
raise NotBranchError(path=transport.base)
520
except KeyError:
521
raise errors.UnknownFormatError(format_string)
522
523
@classmethod
524
def get_default_format(klass):
525
"""Return the current default format."""
526
return klass._default_format
527
528
def get_format_string(self):
529
"""Return the ASCII format string that identifies this format."""
530
raise NotImplementedError(self.get_format_string)
531
532
def initialize(self, a_bzrdir):
533
"""Create a branch of this format in a_bzrdir."""
534
raise NotImplementedError(self.initialized)
535
536
def is_supported(self):
537
"""Is this format supported?
538
539
Supported formats can be initialized and opened.
540
Unsupported formats may not support initialization or committing or
541
some other features depending on the reason for not being supported.
542
"""
543
return True
544
545
def open(self, a_bzrdir, _found=False):
546
"""Return the branch object for a_bzrdir
547
548
_found is a private parameter, do not use it. It is used to indicate
549
if format probing has already be done.
550
"""
551
raise NotImplementedError(self.open)
552
553
@classmethod
554
def register_format(klass, format):
555
klass._formats[format.get_format_string()] = format
556
557
@classmethod
558
def set_default_format(klass, format):
559
klass._default_format = format
560
561
@classmethod
562
def unregister_format(klass, format):
563
assert klass._formats[format.get_format_string()] is format
564
del klass._formats[format.get_format_string()]
565
566
567
class BzrBranchFormat4(BranchFormat):
568
"""Bzr branch format 4.
569
570
This format has:
571
- a revision-history file.
572
- a branch-lock lock file [ to be shared with the bzrdir ]
573
"""
574
575
def initialize(self, a_bzrdir):
576
"""Create a branch of this format in a_bzrdir."""
577
mutter('creating branch in %s', a_bzrdir.transport.base)
578
branch_transport = a_bzrdir.get_branch_transport(self)
579
utf8_files = [('revision-history', ''),
580
('branch-name', ''),
581
]
582
control_files = LockableFiles(branch_transport, 'branch-lock')
583
control_files.lock_write()
584
try:
585
for file, content in utf8_files:
586
control_files.put_utf8(file, content)
587
finally:
588
control_files.unlock()
589
return self.open(a_bzrdir, _found=True)
590
591
def __init__(self):
592
super(BzrBranchFormat4, self).__init__()
593
self._matchingbzrdir = bzrdir.BzrDirFormat6()
594
595
def open(self, a_bzrdir, _found=False):
596
"""Return the branch object for a_bzrdir
597
598
_found is a private parameter, do not use it. It is used to indicate
599
if format probing has already be done.
600
"""
601
if not _found:
602
# we are being called directly and must probe.
603
raise NotImplementedError
604
return BzrBranch(_format=self,
605
_control_files=a_bzrdir._control_files,
606
a_bzrdir=a_bzrdir,
607
_repository=a_bzrdir.open_repository())
608
609
610
class BzrBranchFormat5(BranchFormat):
611
"""Bzr branch format 5.
612
613
This format has:
614
- a revision-history file.
615
- a format string
616
- a lock file.
617
- works with shared repositories.
618
"""
619
620
def get_format_string(self):
621
"""See BranchFormat.get_format_string()."""
622
return "Bazaar-NG branch format 5\n"
623
624
def initialize(self, a_bzrdir):
625
"""Create a branch of this format in a_bzrdir."""
626
mutter('creating branch in %s', a_bzrdir.transport.base)
627
branch_transport = a_bzrdir.get_branch_transport(self)
628
629
utf8_files = [('revision-history', ''),
630
('branch-name', ''),
631
]
632
lock_file = 'lock'
633
branch_transport.put(lock_file, StringIO()) # TODO get the file mode from the bzrdir lock files., mode=file_mode)
634
control_files = LockableFiles(branch_transport, 'lock')
635
control_files.lock_write()
636
control_files.put_utf8('format', self.get_format_string())
637
try:
638
for file, content in utf8_files:
639
control_files.put_utf8(file, content)
640
finally:
641
control_files.unlock()
642
return self.open(a_bzrdir, _found=True, )
643
644
def __init__(self):
645
super(BzrBranchFormat5, self).__init__()
646
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
647
648
def open(self, a_bzrdir, _found=False):
649
"""Return the branch object for a_bzrdir
650
651
_found is a private parameter, do not use it. It is used to indicate
652
if format probing has already be done.
653
"""
654
if not _found:
655
format = BranchFormat.find_format(a_bzrdir)
656
assert format.__class__ == self.__class__
657
transport = a_bzrdir.get_branch_transport(None)
658
control_files = LockableFiles(transport, 'lock')
659
return BzrBranch(_format=self,
660
_control_files=control_files,
661
a_bzrdir=a_bzrdir,
662
_repository=a_bzrdir.find_repository())
663
664
665
class BranchReferenceFormat(BranchFormat):
666
"""Bzr branch reference format.
667
668
Branch references are used in implementing checkouts, they
669
act as an alias to the real branch which is at some other url.
670
671
This format has:
672
- A location file
673
- a format string
674
"""
675
676
def get_format_string(self):
677
"""See BranchFormat.get_format_string()."""
678
return "Bazaar-NG Branch Reference Format 1\n"
679
680
def initialize(self, a_bzrdir, target_branch=None):
681
"""Create a branch of this format in a_bzrdir."""
682
if target_branch is None:
683
# this format does not implement branch itself, thus the implicit
684
# creation contract must see it as uninitializable
685
raise errors.UninitializableFormat(self)
686
mutter('creating branch reference in %s', a_bzrdir.transport.base)
687
branch_transport = a_bzrdir.get_branch_transport(self)
688
# FIXME rbc 20060209 one j-a-ms encoding branch lands this str() cast is not needed.
689
branch_transport.put('location', StringIO(str(target_branch.bzrdir.root_transport.base)))
690
branch_transport.put('format', StringIO(self.get_format_string()))
691
return self.open(a_bzrdir, _found=True)
692
693
def __init__(self):
694
super(BranchReferenceFormat, self).__init__()
695
self._matchingbzrdir = bzrdir.BzrDirMetaFormat1()
696
697
def _make_reference_clone_function(format, a_branch):
698
"""Create a clone() routine for a branch dynamically."""
699
def clone(to_bzrdir, revision_id=None):
700
"""See Branch.clone()."""
701
return format.initialize(to_bzrdir, a_branch)
702
# cannot obey revision_id limits when cloning a reference ...
703
# FIXME RBC 20060210 either nuke revision_id for clone, or
704
# emit some sort of warning/error to the caller ?!
705
return clone
706
707
def open(self, a_bzrdir, _found=False):
708
"""Return the branch that the branch reference in a_bzrdir points at.
709
710
_found is a private parameter, do not use it. It is used to indicate
711
if format probing has already be done.
712
"""
713
if not _found:
714
format = BranchFormat.find_format(a_bzrdir)
715
assert format.__class__ == self.__class__
716
transport = a_bzrdir.get_branch_transport(None)
717
real_bzrdir = bzrdir.BzrDir.open(transport.get('location').read())
718
result = real_bzrdir.open_branch()
719
# this changes the behaviour of result.clone to create a new reference
720
# rather than a copy of the content of the branch.
721
# I did not use a proxy object because that needs much more extensive
722
# testing, and we are only changing one behaviour at the moment.
723
# If we decide to alter more behaviours - i.e. the implicit nickname
724
# then this should be refactored to introduce a tested proxy branch
725
# and a subclass of that for use in overriding clone() and ....
726
# - RBC 20060210
727
result.clone = self._make_reference_clone_function(result)
728
return result
729
730
731
# formats which have no format string are not discoverable
732
# and not independently creatable, so are not registered.
733
__default_format = BzrBranchFormat5()
734
BranchFormat.register_format(__default_format)
735
BranchFormat.register_format(BranchReferenceFormat())
736
BranchFormat.set_default_format(__default_format)
737
_legacy_formats = [BzrBranchFormat4(),
738
]
739
740
class BzrBranch(Branch):
741
"""A branch stored in the actual filesystem.
742
743
Note that it's "local" in the context of the filesystem; it doesn't
744
really matter if it's on an nfs/smb/afs/coda/... share, as long as
745
it's writable, and can be accessed via the normal filesystem API.
746
"""
747
# We actually expect this class to be somewhat short-lived; part of its
748
# purpose is to try to isolate what bits of the branch logic are tied to
749
# filesystem access, so that in a later step, we can extricate them to
750
# a separarte ("storage") class.
751
_inventory_weave = None
752
753
# Map some sort of prefix into a namespace
754
# stuff like "revno:10", "revid:", etc.
755
# This should match a prefix with a function which accepts
756
REVISION_NAMESPACES = {}
757
758
def __init__(self, transport=DEPRECATED_PARAMETER, init=DEPRECATED_PARAMETER,
759
relax_version_check=DEPRECATED_PARAMETER, _format=None,
760
_control_files=None, a_bzrdir=None, _repository=None):
761
"""Create new branch object at a particular location.
762
763
transport -- A Transport object, defining how to access files.
764
765
init -- If True, create new control files in a previously
766
unversioned directory. If False, the branch must already
767
be versioned.
768
769
relax_version_check -- If true, the usual check for the branch
770
version is not applied. This is intended only for
771
upgrade/recovery type use; it's not guaranteed that
772
all operations will work on old format branches.
773
"""
774
if a_bzrdir is None:
775
self.bzrdir = bzrdir.BzrDir.open(transport.base)
776
else:
777
self.bzrdir = a_bzrdir
778
self._transport = self.bzrdir.transport.clone('..')
779
self._base = self._transport.base
780
self._format = _format
781
if _control_files is None:
782
raise BzrBadParameterMissing('_control_files')
783
self.control_files = _control_files
784
if deprecated_passed(init):
785
warn("BzrBranch.__init__(..., init=XXX): The init parameter is "
786
"deprecated as of bzr 0.8. Please use Branch.create().",
787
DeprecationWarning,
788
stacklevel=2)
789
if init:
790
# this is slower than before deprecation, oh well never mind.
791
# -> its deprecated.
792
self._initialize(transport.base)
793
self._check_format(_format)
794
if deprecated_passed(relax_version_check):
795
warn("BzrBranch.__init__(..., relax_version_check=XXX_: The "
796
"relax_version_check parameter is deprecated as of bzr 0.8. "
797
"Please use BzrDir.open_downlevel, or a BzrBranchFormat's "
798
"open() method.",
799
DeprecationWarning,
800
stacklevel=2)
801
if (not relax_version_check
802
and not self._format.is_supported()):
803
raise errors.UnsupportedFormatError(
804
'sorry, branch format %r not supported' % fmt,
805
['use a different bzr version',
806
'or remove the .bzr directory'
807
' and "bzr init" again'])
808
if deprecated_passed(transport):
809
warn("BzrBranch.__init__(transport=XXX...): The transport "
810
"parameter is deprecated as of bzr 0.8. "
811
"Please use Branch.open, or bzrdir.open_branch().",
812
DeprecationWarning,
813
stacklevel=2)
814
self.repository = _repository
815
816
def __str__(self):
817
return '%s(%r)' % (self.__class__.__name__, self.base)
818
819
__repr__ = __str__
820
821
def __del__(self):
822
# TODO: It might be best to do this somewhere else,
823
# but it is nice for a Branch object to automatically
824
# cache it's information.
825
# Alternatively, we could have the Transport objects cache requests
826
# See the earlier discussion about how major objects (like Branch)
827
# should never expect their __del__ function to run.
828
# XXX: cache_root seems to be unused, 2006-01-13 mbp
829
if hasattr(self, 'cache_root') and self.cache_root is not None:
830
try:
831
shutil.rmtree(self.cache_root)
832
except:
833
pass
834
self.cache_root = None
835
836
def _get_base(self):
837
return self._base
838
839
base = property(_get_base, doc="The URL for the root of this branch.")
840
841
def _finish_transaction(self):
842
"""Exit the current transaction."""
843
return self.control_files._finish_transaction()
844
845
def get_transaction(self):
846
"""Return the current active transaction.
847
848
If no transaction is active, this returns a passthrough object
849
for which all data is immediately flushed and no caching happens.
850
"""
851
# this is an explicit function so that we can do tricky stuff
852
# when the storage in rev_storage is elsewhere.
853
# we probably need to hook the two 'lock a location' and
854
# 'have a transaction' together more delicately, so that
855
# we can have two locks (branch and storage) and one transaction
856
# ... and finishing the transaction unlocks both, but unlocking
857
# does not. - RBC 20051121
858
return self.control_files.get_transaction()
859
860
def _set_transaction(self, transaction):
861
"""Set a new active transaction."""
862
return self.control_files._set_transaction(transaction)
863
864
def abspath(self, name):
865
"""See Branch.abspath."""
866
return self.control_files._transport.abspath(name)
867
868
def _check_format(self, format):
869
"""Identify the branch format if needed.
870
871
The format is stored as a reference to the format object in
872
self._format for code that needs to check it later.
873
874
The format parameter is either None or the branch format class
875
used to open this branch.
876
877
FIXME: DELETE THIS METHOD when pre 0.8 support is removed.
878
"""
879
if format is None:
880
format = BzrBranchFormat.find_format(self.bzrdir)
881
self._format = format
882
mutter("got branch format %s", self._format)
883
884
@needs_read_lock
885
def get_root_id(self):
886
"""See Branch.get_root_id."""
887
tree = self.repository.revision_tree(self.last_revision())
888
return tree.inventory.root.file_id
889
890
def lock_write(self):
891
# TODO: test for failed two phase locks. This is known broken.
892
self.control_files.lock_write()
893
self.repository.lock_write()
894
895
def lock_read(self):
896
# TODO: test for failed two phase locks. This is known broken.
897
self.control_files.lock_read()
898
self.repository.lock_read()
899
900
def unlock(self):
901
# TODO: test for failed two phase locks. This is known broken.
902
self.repository.unlock()
903
self.control_files.unlock()
904
905
def peek_lock_mode(self):
906
if self.control_files._lock_count == 0:
907
return None
908
else:
909
return self.control_files._lock_mode
910
911
@needs_read_lock
912
def print_file(self, file, revision_id):
913
"""See Branch.print_file."""
914
return self.repository.print_file(file, revision_id)
915
916
@needs_write_lock
917
def append_revision(self, *revision_ids):
918
"""See Branch.append_revision."""
919
for revision_id in revision_ids:
920
mutter("add {%s} to revision-history" % revision_id)
921
rev_history = self.revision_history()
922
rev_history.extend(revision_ids)
923
self.set_revision_history(rev_history)
924
925
@needs_write_lock
926
def set_revision_history(self, rev_history):
927
"""See Branch.set_revision_history."""
928
self.control_files.put_utf8(
929
'revision-history', '\n'.join(rev_history))
930
931
def get_revision_delta(self, revno):
932
"""Return the delta for one revision.
933
934
The delta is relative to its mainline predecessor, or the
935
empty tree for revision 1.
936
"""
937
assert isinstance(revno, int)
938
rh = self.revision_history()
939
if not (1 <= revno <= len(rh)):
940
raise InvalidRevisionNumber(revno)
941
942
# revno is 1-based; list is 0-based
943
944
new_tree = self.repository.revision_tree(rh[revno-1])
945
if revno == 1:
946
old_tree = EmptyTree()
947
else:
948
old_tree = self.repository.revision_tree(rh[revno-2])
949
return compare_trees(old_tree, new_tree)
950
951
@needs_read_lock
952
def revision_history(self):
953
"""See Branch.revision_history."""
954
# FIXME are transactions bound to control files ? RBC 20051121
955
transaction = self.get_transaction()
956
history = transaction.map.find_revision_history()
957
if history is not None:
958
mutter("cache hit for revision-history in %s", self)
959
return list(history)
960
history = [l.rstrip('\r\n') for l in
961
self.control_files.get_utf8('revision-history').readlines()]
962
transaction.map.add_revision_history(history)
963
# this call is disabled because revision_history is
964
# not really an object yet, and the transaction is for objects.
965
# transaction.register_clean(history, precious=True)
966
return list(history)
967
968
def update_revisions(self, other, stop_revision=None):
969
"""See Branch.update_revisions."""
970
if stop_revision is None:
971
stop_revision = other.last_revision()
972
### Should this be checking is_ancestor instead of revision_history?
973
if (stop_revision is not None and
974
stop_revision in self.revision_history()):
1247
975
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()
976
self.fetch(other, stop_revision)
977
pullable_revs = self.pullable_revisions(other, stop_revision)
978
if len(pullable_revs) > 0:
979
self.append_revision(*pullable_revs)
980
981
def pullable_revisions(self, other, stop_revision):
982
"""See Branch.pullable_revisions."""
983
other_revno = other.revision_id_to_revno(stop_revision)
984
try:
985
return self.missing_revisions(other, other_revno)
986
except DivergedBranches, e:
987
try:
988
pullable_revs = get_intervening_revisions(self.last_revision(),
989
stop_revision,
990
self.repository)
991
assert self.last_revision() not in pullable_revs
992
return pullable_revs
993
except bzrlib.errors.NotAncestor:
994
if is_ancestor(self.last_revision(), stop_revision, self):
995
return []
996
else:
997
raise e
998
999
def basis_tree(self):
1000
"""See Branch.basis_tree."""
1001
return self.repository.revision_tree(self.last_revision())
1002
1003
@deprecated_method(zero_eight)
1004
def working_tree(self):
1005
"""Create a Working tree object for this branch."""
1006
from bzrlib.workingtree import WorkingTree
1007
from bzrlib.transport.local import LocalTransport
1008
if (self.base.find('://') != -1 or
1009
not isinstance(self._transport, LocalTransport)):
1010
raise NoWorkingTree(self.base)
1011
return self.bzrdir.open_workingtree()
1012
1013
@needs_write_lock
1014
def pull(self, source, overwrite=False, stop_revision=None):
1015
"""See Branch.pull."""
1016
source.lock_read()
1017
try:
1018
old_count = len(self.revision_history())
1019
try:
1020
self.update_revisions(source,stop_revision)
1021
except DivergedBranches:
1022
if not overwrite:
1023
raise
1024
if overwrite:
1025
self.set_revision_history(source.revision_history())
1026
new_count = len(self.revision_history())
1027
return new_count - old_count
1263
1028
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
1029
source.unlock()
1030
1031
def get_parent(self):
1032
"""See Branch.get_parent."""
1033
import errno
1034
_locs = ['parent', 'pull', 'x-pull']
1035
for l in _locs:
1036
try:
1037
return self.control_files.get_utf8(l).read().strip('\n')
1038
except NoSuchFile:
1039
pass
1040
return None
1041
1042
def get_push_location(self):
1043
"""See Branch.get_push_location."""
1044
config = bzrlib.config.BranchConfig(self)
1045
push_loc = config.get_user_option('push_location')
1046
return push_loc
1047
1048
def set_push_location(self, location):
1049
"""See Branch.set_push_location."""
1050
config = bzrlib.config.LocationConfig(self.base)
1051
config.set_user_option('push_location', location)
1052
1053
@needs_write_lock
1054
def set_parent(self, url):
1055
"""See Branch.set_parent."""
1056
# TODO: Maybe delete old location files?
1057
# URLs should never be unicode, even on the local fs,
1058
# FIXUP this and get_parent in a future branch format bump:
1059
# read and rewrite the file, and have the new format code read
1060
# using .get not .get_utf8. RBC 20060125
1061
self.control_files.put_utf8('parent', url + '\n')
1062
1063
def tree_config(self):
1064
return TreeConfig(self)
1065
1066
def _get_truncated_history(self, revision_id):
1067
history = self.revision_history()
1068
if revision_id is None:
1069
return history
1070
try:
1071
idx = history.index(revision_id)
1072
except ValueError:
1073
raise InvalidRevisionId(revision_id=revision, branch=self)
1074
return history[:idx+1]
1075
1076
@needs_read_lock
1077
def _clone_weave(self, to_location, revision=None, basis_branch=None):
1078
# prevent leakage
1079
from bzrlib.workingtree import WorkingTree
1080
assert isinstance(to_location, basestring)
1081
if basis_branch is not None:
1082
note("basis_branch is not supported for fast weave copy yet.")
1083
1084
history = self._get_truncated_history(revision)
1085
if not bzrlib.osutils.lexists(to_location):
1086
os.mkdir(to_location)
1087
bzrdir_to = self.bzrdir._format.initialize(to_location)
1088
self.repository.clone(bzrdir_to)
1089
branch_to = bzrdir_to.create_branch()
1090
mutter("copy branch from %s to %s", self, branch_to)
1091
1092
# FIXME duplicate code with base .clone().
1093
# .. would template method be useful here? RBC 20051207
1094
branch_to.set_parent(self.base)
1095
branch_to.append_revision(*history)
1096
WorkingTree.create(branch_to, branch_to.base)
1097
mutter("copied")
1098
return branch_to
1099
1100
1101
class BranchTestProviderAdapter(object):
1102
"""A tool to generate a suite testing multiple branch formats at once.
1103
1104
This is done by copying the test once for each transport and injecting
1105
the transport_server, transport_readonly_server, and branch_format
1106
classes into each copy. Each copy is also given a new id() to make it
1107
easy to identify.
1278
1108
"""
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
1109
1110
def __init__(self, transport_server, transport_readonly_server, formats):
1111
self._transport_server = transport_server
1112
self._transport_readonly_server = transport_readonly_server
1113
self._formats = formats
1335
1114
1115
def adapt(self, test):
1116
result = TestSuite()
1117
for branch_format, bzrdir_format in self._formats:
1118
new_test = deepcopy(test)
1119
new_test.transport_server = self._transport_server
1120
new_test.transport_readonly_server = self._transport_readonly_server
1121
new_test.bzrdir_format = bzrdir_format
1122
new_test.branch_format = branch_format
1123
def make_new_test_id():
1124
new_id = "%s(%s)" % (new_test.id(), branch_format.__class__.__name__)
1125
return lambda: new_id
1126
new_test.id = make_new_test_id()
1127
result.addTest(new_test)
1128
return result
1129
1336
1130
1337
1131
######################################################################
1338
1132
# predicates
1339
1133
1340
1134
1341
def is_control_file(filename):
1342
## FIXME: better check
1343
filename = os.path.normpath(filename)
1344
while filename != '':
1345
head, tail = os.path.split(filename)
1346
## mutter('check %r for control file' % ((head, tail), ))
1347
if tail == bzrlib.BZRDIR:
1348
return True
1349
if filename == head:
1350
break
1351
filename = head
1352
return False
1353
1354
1355
1356
def gen_file_id(name):
1357
"""Return new file id.
1358
1359
This should probably generate proper UUIDs, but for the moment we
1360
cope with just randomness because running uuidgen every time is
1361
slow."""
1362
import re
1363
from binascii import hexlify
1364
from time import time
1365
1366
# get last component
1367
idx = name.rfind('/')
1368
if idx != -1:
1369
name = name[idx+1 : ]
1370
idx = name.rfind('\\')
1371
if idx != -1:
1372
name = name[idx+1 : ]
1373
1374
# make it not a hidden file
1375
name = name.lstrip('.')
1376
1377
# remove any wierd characters; we don't escape them but rather
1378
# just pull them out
1379
name = re.sub(r'[^\w.]', '', name)
1380
1381
s = hexlify(rand_bytes(8))
1382
return '-'.join((name, compact_date(time()), s))
1383
1384
1385
def gen_root_id():
1386
"""Return a new tree-root file id."""
1387
return gen_file_id('TREE_ROOT')
1388
1135
@deprecated_function(zero_eight)
1136
def ScratchBranch(*args, **kwargs):
1137
"""See bzrlib.bzrdir.ScratchDir."""
1138
d = ScratchDir(*args, **kwargs)
1139
return d.open_branch()
1140
1141
1142
@deprecated_function(zero_eight)
1143
def is_control_file(*args, **kwargs):
1144
"""See bzrlib.workingtree.is_control_file."""
1145
return bzrlib.workingtree.is_control_file(*args, **kwargs)
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0