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# Copyright (C) 2005 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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# 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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# 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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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cStringIO import StringIO
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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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sha_file, appendpath, file_kind
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.inventory import Inventory
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from bzrlib.weavestore import WeaveStore
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from bzrlib.store import ImmutableStore
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INVENTORY_FILEID = '__inventory'
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ANCESTRY_FILEID = '__ancestry'
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BZR_BRANCH_FORMAT_4 = "Bazaar-NG branch, format 0.0.4\n"
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BZR_BRANCH_FORMAT_5 = "Bazaar-NG branch, format 5\n"
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## TODO: Maybe include checks for common corruption of newlines, etc?
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# 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. In general anything can be
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# cached in memory between lock and unlock operations.
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# TODO: please move the revision-string syntax stuff out of the branch
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# object; it's clutter
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def find_branch(f, **args):
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if f and (f.startswith('http://') or f.startswith('https://')):
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return remotebranch.RemoteBranch(f, **args)
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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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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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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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while len(head) >= len(base):
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head, tail = os.path.split(head)
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from errors import NotBranchError
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raise NotBranchError("path %r is not within branch %r" % (rp, base))
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return os.sep.join(s)
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def find_branch_root(f=None):
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"""Find the branch root enclosing f, or pwd.
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f may be a filename or a URL.
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It is not necessary that f exists.
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Basically we keep looking up until we find the control directory or
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run into the root. If there isn't one, raises NotBranchError.
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elif hasattr(os.path, 'realpath'):
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f = os.path.realpath(f)
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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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if os.path.exists(os.path.join(f, bzrlib.BZRDIR)):
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head, tail = os.path.split(f)
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# reached the root, whatever that may be
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raise bzrlib.errors.NotBranchError('%s is not in a branch' % orig_f)
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# XXX: move into bzrlib.errors; subclass BzrError
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class DivergedBranches(Exception):
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def __init__(self, branch1, branch2):
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self.branch1 = branch1
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self.branch2 = branch2
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Exception.__init__(self, "These branches have diverged.")
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######################################################################
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class Branch(object):
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"""Branch holding a history of revisions.
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Base directory of the branch.
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If _lock_mode is true, a positive count of the number of times the
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Lock object from bzrlib.lock.
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_inventory_weave = 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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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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self.base = os.path.realpath(base)
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self.base = find_branch_root(base)
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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.weave_store = WeaveStore(self.controlfilename('weaves'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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return '%s(%r)' % (self.__class__.__name__, self.base)
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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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def lock_write(self):
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if self._lock_mode != 'w':
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from errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_count += 1
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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if not self._lock_mode:
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from errors import LockError
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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return _relpath(self.base, path)
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, basestring):
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file_or_path = [file_or_path]
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return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
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return file(fn, mode)
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elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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return codecs.open(fn, mode + 'b', 'utf-8',
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.\n")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT_5)
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for d in ('text-store', 'revision-store',
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name',
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self.controlfile(f, 'w').write('')
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mutter('created control directory in ' + self.base)
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# if we want per-tree root ids then this is the place to set
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# them; they're not needed for now and so ommitted for
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f = self.controlfile('inventory','w')
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bzrlib.xml5.serializer_v5.write_inventory(Inventory(), f)
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def _check_format(self):
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"""Check this branch format is supported.
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The format level is stored, as an integer, in
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self._branch_format for code that needs to check it later.
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In the future, we might need different in-memory Branch
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classes to support downlevel branches. But not yet.
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fmt = self.controlfile('branch-format', 'r').read()
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if fmt == BZR_BRANCH_FORMAT_5:
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self._branch_format = 5
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raise BzrError('sorry, branch format "%s" not supported; '
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'use a different bzr version, '
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'or run "bzr upgrade", '
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'or remove the .bzr directory and "bzr init" again'
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% fmt.rstrip('\n\r'))
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def get_root_id(self):
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"""Return the id of this branches root"""
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inv = self.read_working_inventory()
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return inv.root.file_id
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def set_root_id(self, file_id):
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inv = self.read_working_inventory()
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orig_root_id = inv.root.file_id
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del inv._byid[inv.root.file_id]
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inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
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if entry.parent_id in (None, orig_root_id):
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entry.parent_id = inv.root.file_id
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self._write_inventory(inv)
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def read_working_inventory(self):
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"""Read the working inventory."""
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# ElementTree does its own conversion from UTF-8, so open in
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f = self.controlfile('inventory', 'rb')
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return bzrlib.xml5.serializer_v5.read_inventory(f)
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def _write_inventory(self, inv):
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"""Update the working inventory.
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That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
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from bzrlib.atomicfile import AtomicFile
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f = AtomicFile(self.controlfilename('inventory'), 'wb')
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bzrlib.xml5.serializer_v5.write_inventory(inv, f)
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mutter('wrote working inventory')
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inventory = property(read_working_inventory, _write_inventory, None,
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"""Inventory for the working copy.""")
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def add(self, files, ids=None):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead,
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which can automatically recurse.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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List of paths to add, relative to the base of the tree.
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If set, use these instead of automatically generated ids.
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Must be the same length as the list of files, but may
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contain None for ids that are to be autogenerated.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps yield the ids and paths as they're added.
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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if isinstance(files, basestring):
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assert(ids is None or isinstance(ids, basestring))
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ids = [None] * len(files)
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assert(len(ids) == len(files))
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inv = self.read_working_inventory()
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for f,file_id in zip(files, ids):
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if is_control_file(f):
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raise BzrError("cannot add control file %s" % quotefn(f))
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raise BzrError("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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def print_file(self, file, revno):
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"""Print `file` to stdout."""
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tree = self.revision_tree(self.lookup_revision(revno))
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# use inventory as it was in that revision
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file_id = tree.inventory.path2id(file)
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raise BzrError("%r is not present in revision %s" % (file, revno))
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tree.print_file(file_id)
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def remove(self, files, verbose=False):
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"""Mark nominated files for removal from the inventory.
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This does not remove their text. This does not run on
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TODO: Refuse to remove modified files unless --force is given?
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TODO: Do something useful with directories.
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TODO: Should this remove the text or not? Tough call; not
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removing may be useful and the user can just use use rm, and
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is the opposite of add. Removing it is consistent with most
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other tools. Maybe an option.
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## TODO: Normalize names
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## TODO: Remove nested loops; better scalability
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if isinstance(files, basestring):
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tree = self.working_tree()
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# do this before any modifications
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raise BzrError("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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self._write_inventory(inv)
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# FIXME: this doesn't need to be a branch method
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def set_inventory(self, new_inventory_list):
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from bzrlib.inventory import Inventory, InventoryEntry
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inv = Inventory(self.get_root_id())
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for path, file_id, parent, kind in new_inventory_list:
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name = os.path.basename(path)
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inv.add(InventoryEntry(file_id, name, kind, parent))
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self._write_inventory(inv)
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"""Return all unknown files.
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These are files in the working directory that are not versioned or
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control files or ignored.
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>>> b = ScratchBranch(files=['foo', 'foo~'])
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>>> list(b.unknowns())
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>>> list(b.unknowns())
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>>> list(b.unknowns())
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return self.working_tree().unknowns()
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def append_revision(self, *revision_ids):
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from bzrlib.atomicfile import AtomicFile
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for revision_id in revision_ids:
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mutter("add {%s} to revision-history" % revision_id)
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rev_history = self.revision_history()
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rev_history.extend(revision_ids)
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f = AtomicFile(self.controlfilename('revision-history'))
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for rev_id in rev_history:
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def get_revision_xml_file(self, revision_id):
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"""Return XML file object for revision object."""
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if not revision_id or not isinstance(revision_id, basestring):
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raise InvalidRevisionId(revision_id)
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return self.revision_store[revision_id]
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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def get_revision_xml(self, revision_id):
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return self.get_revision_xml_file(revision_id).read()
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def get_revision(self, revision_id):
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"""Return the Revision object for a named revision"""
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xml_file = self.get_revision_xml_file(revision_id)
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r = bzrlib.xml5.serializer_v5.read_revision(xml_file)
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except SyntaxError, e:
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raise bzrlib.errors.BzrError('failed to unpack revision_xml',
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assert r.revision_id == revision_id
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def get_revision_delta(self, revno):
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"""Return the delta for one revision.
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The delta is relative to its mainline predecessor, or the
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empty tree for revision 1.
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assert isinstance(revno, int)
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rh = self.revision_history()
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if not (1 <= revno <= len(rh)):
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raise InvalidRevisionNumber(revno)
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# revno is 1-based; list is 0-based
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new_tree = self.revision_tree(rh[revno-1])
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old_tree = EmptyTree()
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old_tree = self.revision_tree(rh[revno-2])
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return compare_trees(old_tree, new_tree)
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def get_revision_sha1(self, revision_id):
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"""Hash the stored value of a revision, and return it."""
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return bzrlib.osutils.sha_file(self.get_revision_xml_file(revision_id))
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def get_ancestry(self, revision_id):
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"""Return a list of revision-ids integrated by a revision.
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w = self.weave_store.get_weave(ANCESTRY_FILEID)
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return [l[:-1] for l in w.get_iter(w.lookup(revision_id))]
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def get_inventory_weave(self):
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return self.weave_store.get_weave(INVENTORY_FILEID)
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def get_inventory(self, revision_id):
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"""Get Inventory object by hash."""
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# FIXME: The text gets passed around a lot coming from the weave.
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f = StringIO(self.get_inventory_xml(revision_id))
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return bzrlib.xml5.serializer_v5.read_inventory(f)
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def get_inventory_xml(self, revision_id):
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"""Get inventory XML as a file object."""
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assert isinstance(revision_id, basestring), type(revision_id)
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iw = self.get_inventory_weave()
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return iw.get_text(iw.lookup(revision_id))
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raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
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def get_inventory_sha1(self, revision_id):
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"""Return the sha1 hash of the inventory entry
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return self.get_revision(revision_id).inventory_sha1
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def get_revision_inventory(self, revision_id):
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"""Return inventory of a past revision."""
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# bzr 0.0.6 and later imposes the constraint that the inventory_id
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# must be the same as its revision, so this is trivial.
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if revision_id == None:
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return Inventory(self.get_root_id())
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return self.get_inventory(revision_id)
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def revision_history(self):
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"""Return sequence of revision hashes on to this branch.
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>>> ScratchBranch().revision_history()
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return [l.rstrip('\r\n') for l in
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self.controlfile('revision-history', 'r').readlines()]
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def common_ancestor(self, other, self_revno=None, other_revno=None):
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>>> sb = ScratchBranch(files=['foo', 'foo~'])
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>>> sb.common_ancestor(sb) == (None, None)
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>>> commit.commit(sb, "Committing first revision")
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>>> sb.common_ancestor(sb)[0]
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>>> clone = sb.clone()
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>>> commit.commit(sb, "Committing second revision")
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>>> sb.common_ancestor(sb)[0]
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>>> sb.common_ancestor(clone)[0]
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>>> commit.commit(clone, "Committing divergent second revision")
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>>> sb.common_ancestor(clone)[0]
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>>> sb.common_ancestor(clone) == clone.common_ancestor(sb)
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>>> sb.common_ancestor(sb) != clone.common_ancestor(clone)
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>>> clone2 = sb.clone()
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>>> sb.common_ancestor(clone2)[0]
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>>> sb.common_ancestor(clone2, self_revno=1)[0]
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>>> sb.common_ancestor(clone2, other_revno=1)[0]
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my_history = self.revision_history()
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other_history = other.revision_history()
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if self_revno is None:
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self_revno = len(my_history)
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if other_revno is None:
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other_revno = len(other_history)
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indices = range(min((self_revno, other_revno)))
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if my_history[r] == other_history[r]:
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return r+1, my_history[r]
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"""Return current revision number for this branch.
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That is equivalent to the number of revisions committed to
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return len(self.revision_history())
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def last_revision(self):
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"""Return last patch hash, or None if no history.
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ph = self.revision_history()
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def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
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If self and other have not diverged, return a list of the revisions
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present in other, but missing from self.
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>>> from bzrlib.commit import commit
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>>> bzrlib.trace.silent = True
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>>> br1 = ScratchBranch()
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>>> br2 = ScratchBranch()
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>>> br1.missing_revisions(br2)
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>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> br2.missing_revisions(br1)
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>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
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>>> br1.missing_revisions(br2)
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>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
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>>> br1.missing_revisions(br2)
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Traceback (most recent call last):
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DivergedBranches: These branches have diverged.
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self_history = self.revision_history()
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self_len = len(self_history)
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other_history = other.revision_history()
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other_len = len(other_history)
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common_index = min(self_len, other_len) -1
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if common_index >= 0 and \
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self_history[common_index] != other_history[common_index]:
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raise DivergedBranches(self, other)
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if stop_revision is None:
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stop_revision = other_len
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elif stop_revision > other_len:
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raise bzrlib.errors.NoSuchRevision(self, stop_revision)
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return other_history[self_len:stop_revision]
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def update_revisions(self, other, stop_revision=None):
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"""Pull in all new revisions from other branch.
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# FIXME: Is this redundant with just doing fetch?
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from bzrlib.fetch import greedy_fetch
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pb = bzrlib.ui.ui_factory.progress_bar()
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pb.update('comparing histories')
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revision_ids = self.missing_revisions(other, stop_revision)
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if len(revision_ids) > 0:
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count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
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self.append_revision(*revision_ids)
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## note("Added %d revisions." % count)
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def commit(self, *args, **kw):
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from bzrlib.commit import Commit
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Commit().commit(self, *args, **kw)
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def lookup_revision(self, revision):
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"""Return the revision identifier for a given revision information."""
841
revno, info = self._get_revision_info(revision)
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def revision_id_to_revno(self, revision_id):
846
"""Given a revision id, return its revno"""
847
history = self.revision_history()
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return history.index(revision_id) + 1
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
854
def get_revision_info(self, revision):
855
"""Return (revno, revision id) for revision identifier.
857
revision can be an integer, in which case it is assumed to be revno (though
858
this will translate negative values into positive ones)
859
revision can also be a string, in which case it is parsed for something like
860
'date:' or 'revid:' etc.
862
revno, rev_id = self._get_revision_info(revision)
864
raise bzrlib.errors.NoSuchRevision(self, revision)
867
def get_rev_id(self, revno, history=None):
868
"""Find the revision id of the specified revno."""
872
history = self.revision_history()
873
elif revno <= 0 or revno > len(history):
874
raise bzrlib.errors.NoSuchRevision(self, revno)
875
return history[revno - 1]
877
def _get_revision_info(self, revision):
878
"""Return (revno, revision id) for revision specifier.
880
revision can be an integer, in which case it is assumed to be revno
881
(though this will translate negative values into positive ones)
882
revision can also be a string, in which case it is parsed for something
883
like 'date:' or 'revid:' etc.
885
A revid is always returned. If it is None, the specifier referred to
886
the null revision. If the revid does not occur in the revision
887
history, revno will be None.
893
try:# Convert to int if possible
894
revision = int(revision)
897
revs = self.revision_history()
898
if isinstance(revision, int):
900
revno = len(revs) + revision + 1
903
rev_id = self.get_rev_id(revno, revs)
904
elif isinstance(revision, basestring):
905
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
906
if revision.startswith(prefix):
907
result = func(self, revs, revision)
909
revno, rev_id = result
912
rev_id = self.get_rev_id(revno, revs)
915
raise BzrError('No namespace registered for string: %r' %
918
raise TypeError('Unhandled revision type %s' % revision)
922
raise bzrlib.errors.NoSuchRevision(self, revision)
925
def _namespace_revno(self, revs, revision):
926
"""Lookup a revision by revision number"""
927
assert revision.startswith('revno:')
929
return (int(revision[6:]),)
932
REVISION_NAMESPACES['revno:'] = _namespace_revno
934
def _namespace_revid(self, revs, revision):
935
assert revision.startswith('revid:')
936
rev_id = revision[len('revid:'):]
938
return revs.index(rev_id) + 1, rev_id
941
REVISION_NAMESPACES['revid:'] = _namespace_revid
943
def _namespace_last(self, revs, revision):
944
assert revision.startswith('last:')
946
offset = int(revision[5:])
951
raise BzrError('You must supply a positive value for --revision last:XXX')
952
return (len(revs) - offset + 1,)
953
REVISION_NAMESPACES['last:'] = _namespace_last
955
def _namespace_tag(self, revs, revision):
956
assert revision.startswith('tag:')
957
raise BzrError('tag: namespace registered, but not implemented.')
958
REVISION_NAMESPACES['tag:'] = _namespace_tag
960
def _namespace_date(self, revs, revision):
961
assert revision.startswith('date:')
963
# Spec for date revisions:
965
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
966
# it can also start with a '+/-/='. '+' says match the first
967
# entry after the given date. '-' is match the first entry before the date
968
# '=' is match the first entry after, but still on the given date.
970
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
971
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
972
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
973
# May 13th, 2005 at 0:00
975
# So the proper way of saying 'give me all entries for today' is:
976
# -r {date:+today}:{date:-tomorrow}
977
# The default is '=' when not supplied
980
if val[:1] in ('+', '-', '='):
981
match_style = val[:1]
984
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
985
if val.lower() == 'yesterday':
986
dt = today - datetime.timedelta(days=1)
987
elif val.lower() == 'today':
989
elif val.lower() == 'tomorrow':
990
dt = today + datetime.timedelta(days=1)
993
# This should be done outside the function to avoid recompiling it.
994
_date_re = re.compile(
995
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
997
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
999
m = _date_re.match(val)
1000
if not m or (not m.group('date') and not m.group('time')):
1001
raise BzrError('Invalid revision date %r' % revision)
1004
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1006
year, month, day = today.year, today.month, today.day
1008
hour = int(m.group('hour'))
1009
minute = int(m.group('minute'))
1010
if m.group('second'):
1011
second = int(m.group('second'))
1015
hour, minute, second = 0,0,0
1017
dt = datetime.datetime(year=year, month=month, day=day,
1018
hour=hour, minute=minute, second=second)
1022
if match_style == '-':
1024
elif match_style == '=':
1025
last = dt + datetime.timedelta(days=1)
1028
for i in range(len(revs)-1, -1, -1):
1029
r = self.get_revision(revs[i])
1030
# TODO: Handle timezone.
1031
dt = datetime.datetime.fromtimestamp(r.timestamp)
1032
if first >= dt and (last is None or dt >= last):
1035
for i in range(len(revs)):
1036
r = self.get_revision(revs[i])
1037
# TODO: Handle timezone.
1038
dt = datetime.datetime.fromtimestamp(r.timestamp)
1039
if first <= dt and (last is None or dt <= last):
1041
REVISION_NAMESPACES['date:'] = _namespace_date
1043
def revision_tree(self, revision_id):
1044
"""Return Tree for a revision on this branch.
1046
`revision_id` may be None for the null revision, in which case
1047
an `EmptyTree` is returned."""
1048
# TODO: refactor this to use an existing revision object
1049
# so we don't need to read it in twice.
1050
if revision_id == None:
1053
inv = self.get_revision_inventory(revision_id)
1054
return RevisionTree(self.weave_store, inv, revision_id)
1057
def working_tree(self):
1058
"""Return a `Tree` for the working copy."""
1059
from workingtree import WorkingTree
1060
return WorkingTree(self.base, self.read_working_inventory())
1063
def basis_tree(self):
1064
"""Return `Tree` object for last revision.
1066
If there are no revisions yet, return an `EmptyTree`.
1068
return self.revision_tree(self.last_revision())
1071
def rename_one(self, from_rel, to_rel):
1074
This can change the directory or the filename or both.
1078
tree = self.working_tree()
1079
inv = tree.inventory
1080
if not tree.has_filename(from_rel):
1081
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1082
if tree.has_filename(to_rel):
1083
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1085
file_id = inv.path2id(from_rel)
1087
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1089
if inv.path2id(to_rel):
1090
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1092
to_dir, to_tail = os.path.split(to_rel)
1093
to_dir_id = inv.path2id(to_dir)
1094
if to_dir_id == None and to_dir != '':
1095
raise BzrError("can't determine destination directory id for %r" % to_dir)
1097
mutter("rename_one:")
1098
mutter(" file_id {%s}" % file_id)
1099
mutter(" from_rel %r" % from_rel)
1100
mutter(" to_rel %r" % to_rel)
1101
mutter(" to_dir %r" % to_dir)
1102
mutter(" to_dir_id {%s}" % to_dir_id)
1104
inv.rename(file_id, to_dir_id, to_tail)
1106
from_abs = self.abspath(from_rel)
1107
to_abs = self.abspath(to_rel)
1109
os.rename(from_abs, to_abs)
1111
raise BzrError("failed to rename %r to %r: %s"
1112
% (from_abs, to_abs, e[1]),
1113
["rename rolled back"])
1115
self._write_inventory(inv)
1120
def move(self, from_paths, to_name):
1123
to_name must exist as a versioned directory.
1125
If to_name exists and is a directory, the files are moved into
1126
it, keeping their old names. If it is a directory,
1128
Note that to_name is only the last component of the new name;
1129
this doesn't change the directory.
1131
This returns a list of (from_path, to_path) pairs for each
1132
entry that is moved.
1137
## TODO: Option to move IDs only
1138
assert not isinstance(from_paths, basestring)
1139
tree = self.working_tree()
1140
inv = tree.inventory
1141
to_abs = self.abspath(to_name)
1142
if not isdir(to_abs):
1143
raise BzrError("destination %r is not a directory" % to_abs)
1144
if not tree.has_filename(to_name):
1145
raise BzrError("destination %r not in working directory" % to_abs)
1146
to_dir_id = inv.path2id(to_name)
1147
if to_dir_id == None and to_name != '':
1148
raise BzrError("destination %r is not a versioned directory" % to_name)
1149
to_dir_ie = inv[to_dir_id]
1150
if to_dir_ie.kind not in ('directory', 'root_directory'):
1151
raise BzrError("destination %r is not a directory" % to_abs)
1153
to_idpath = inv.get_idpath(to_dir_id)
1155
for f in from_paths:
1156
if not tree.has_filename(f):
1157
raise BzrError("%r does not exist in working tree" % f)
1158
f_id = inv.path2id(f)
1160
raise BzrError("%r is not versioned" % f)
1161
name_tail = splitpath(f)[-1]
1162
dest_path = appendpath(to_name, name_tail)
1163
if tree.has_filename(dest_path):
1164
raise BzrError("destination %r already exists" % dest_path)
1165
if f_id in to_idpath:
1166
raise BzrError("can't move %r to a subdirectory of itself" % f)
1168
# OK, so there's a race here, it's possible that someone will
1169
# create a file in this interval and then the rename might be
1170
# left half-done. But we should have caught most problems.
1172
for f in from_paths:
1173
name_tail = splitpath(f)[-1]
1174
dest_path = appendpath(to_name, name_tail)
1175
result.append((f, dest_path))
1176
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1178
os.rename(self.abspath(f), self.abspath(dest_path))
1180
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1181
["rename rolled back"])
1183
self._write_inventory(inv)
1190
def revert(self, filenames, old_tree=None, backups=True):
1191
"""Restore selected files to the versions from a previous tree.
1194
If true (default) backups are made of files before
1197
from bzrlib.errors import NotVersionedError, BzrError
1198
from bzrlib.atomicfile import AtomicFile
1199
from bzrlib.osutils import backup_file
1201
inv = self.read_working_inventory()
1202
if old_tree is None:
1203
old_tree = self.basis_tree()
1204
old_inv = old_tree.inventory
1207
for fn in filenames:
1208
file_id = inv.path2id(fn)
1210
raise NotVersionedError("not a versioned file", fn)
1211
if not old_inv.has_id(file_id):
1212
raise BzrError("file not present in old tree", fn, file_id)
1213
nids.append((fn, file_id))
1215
# TODO: Rename back if it was previously at a different location
1217
# TODO: If given a directory, restore the entire contents from
1218
# the previous version.
1220
# TODO: Make a backup to a temporary file.
1222
# TODO: If the file previously didn't exist, delete it?
1223
for fn, file_id in nids:
1226
f = AtomicFile(fn, 'wb')
1228
f.write(old_tree.get_file(file_id).read())
1234
def pending_merges(self):
1235
"""Return a list of pending merges.
1237
These are revisions that have been merged into the working
1238
directory but not yet committed.
1240
cfn = self.controlfilename('pending-merges')
1241
if not os.path.exists(cfn):
1244
for l in self.controlfile('pending-merges', 'r').readlines():
1245
p.append(l.rstrip('\n'))
1249
def add_pending_merge(self, revision_id):
1250
from bzrlib.revision import validate_revision_id
1252
validate_revision_id(revision_id)
1254
p = self.pending_merges()
1255
if revision_id in p:
1257
p.append(revision_id)
1258
self.set_pending_merges(p)
1261
def set_pending_merges(self, rev_list):
1262
from bzrlib.atomicfile import AtomicFile
1265
f = AtomicFile(self.controlfilename('pending-merges'))
1276
def get_parent(self):
1277
"""Return the parent location of the branch.
1279
This is the default location for push/pull/missing. The usual
1280
pattern is that the user can override it by specifying a
1284
_locs = ['parent', 'pull', 'x-pull']
1287
return self.controlfile(l, 'r').read().strip('\n')
1289
if e.errno != errno.ENOENT:
1294
def set_parent(self, url):
1295
# TODO: Maybe delete old location files?
1296
from bzrlib.atomicfile import AtomicFile
1299
f = AtomicFile(self.controlfilename('parent'))
1308
def check_revno(self, revno):
1310
Check whether a revno corresponds to any revision.
1311
Zero (the NULL revision) is considered valid.
1314
self.check_real_revno(revno)
1316
def check_real_revno(self, revno):
1318
Check whether a revno corresponds to a real revision.
1319
Zero (the NULL revision) is considered invalid
1321
if revno < 1 or revno > self.revno():
1322
raise InvalidRevisionNumber(revno)
1327
class ScratchBranch(Branch):
1328
"""Special test class: a branch that cleans up after itself.
1330
>>> b = ScratchBranch()
1338
def __init__(self, files=[], dirs=[], base=None):
1339
"""Make a test branch.
1341
This creates a temporary directory and runs init-tree in it.
1343
If any files are listed, they are created in the working copy.
1345
from tempfile import mkdtemp
1350
Branch.__init__(self, base, init=init)
1352
os.mkdir(self.abspath(d))
1355
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1360
>>> orig = ScratchBranch(files=["file1", "file2"])
1361
>>> clone = orig.clone()
1362
>>> os.path.samefile(orig.base, clone.base)
1364
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1367
from shutil import copytree
1368
from tempfile import mkdtemp
1371
copytree(self.base, base, symlinks=True)
1372
return ScratchBranch(base=base)
1380
"""Destroy the test branch, removing the scratch directory."""
1381
from shutil import rmtree
1384
mutter("delete ScratchBranch %s" % self.base)
1387
# Work around for shutil.rmtree failing on Windows when
1388
# readonly files are encountered
1389
mutter("hit exception in destroying ScratchBranch: %s" % e)
1390
for root, dirs, files in os.walk(self.base, topdown=False):
1392
os.chmod(os.path.join(root, name), 0700)
1398
######################################################################
1402
def is_control_file(filename):
1403
## FIXME: better check
1404
filename = os.path.normpath(filename)
1405
while filename != '':
1406
head, tail = os.path.split(filename)
1407
## mutter('check %r for control file' % ((head, tail), ))
1408
if tail == bzrlib.BZRDIR:
1410
if filename == head:
1417
def gen_file_id(name):
1418
"""Return new file id.
1420
This should probably generate proper UUIDs, but for the moment we
1421
cope with just randomness because running uuidgen every time is
1424
from binascii import hexlify
1425
from time import time
1427
# get last component
1428
idx = name.rfind('/')
1430
name = name[idx+1 : ]
1431
idx = name.rfind('\\')
1433
name = name[idx+1 : ]
1435
# make it not a hidden file
1436
name = name.lstrip('.')
1438
# remove any wierd characters; we don't escape them but rather
1439
# just pull them out
1440
name = re.sub(r'[^\w.]', '', name)
1442
s = hexlify(rand_bytes(8))
1443
return '-'.join((name, compact_date(time()), s))
1447
"""Return a new tree-root file id."""
1448
return gen_file_id('TREE_ROOT')
1451
def pull_loc(branch):
1452
# TODO: Should perhaps just make attribute be 'base' in
1453
# RemoteBranch and Branch?
1454
if hasattr(branch, "baseurl"):
1455
return branch.baseurl
1460
def copy_branch(branch_from, to_location, revision=None):
1461
"""Copy branch_from into the existing directory to_location.
1464
If not None, only revisions up to this point will be copied.
1465
The head of the new branch will be that revision.
1468
The name of a local directory that exists but is empty.
1470
from bzrlib.merge import merge
1471
from bzrlib.branch import Branch
1473
assert isinstance(branch_from, Branch)
1474
assert isinstance(to_location, basestring)
1476
br_to = Branch(to_location, init=True)
1477
br_to.set_root_id(branch_from.get_root_id())
1478
if revision is None:
1479
revno = branch_from.revno()
1481
revno, rev_id = branch_from.get_revision_info(revision)
1482
br_to.update_revisions(branch_from, stop_revision=revno)
1483
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1484
check_clean=False, ignore_zero=True)
1486
from_location = pull_loc(branch_from)
1487
br_to.set_parent(pull_loc(branch_from))