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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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NoSuchRevision, HistoryMissing)
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision, validate_revision_id
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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 has_revision(self, revision_id):
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"""True if this branch has a copy of the revision.
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This does not necessarily imply the revision is merge
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or on the mainline."""
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return revision_id in self.revision_store
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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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"""Return a list of new revisions that would perfectly fit.
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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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# FIXME: If the branches have diverged, but the latest
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# revision in this branch is completely merged into the other,
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# then we should still be able to pull.
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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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assert isinstance(stop_revision, int)
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if 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_revno=None):
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"""Pull in new perfect-fit revisions.
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from bzrlib.fetch import greedy_fetch
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stop_revision = other.lookup_revision(stop_revno)
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greedy_fetch(to_branch=self, from_branch=other,
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revision=stop_revision)
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pullable_revs = self.missing_revisions(other, stop_revision)
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greedy_fetch(to_branch=self,
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revision=pullable_revs[-1])
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self.append_revision(*pullable_revs)
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def commit(self, *args, **kw):
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from bzrlib.commit import Commit
851
Commit().commit(self, *args, **kw)
854
def lookup_revision(self, revision):
855
"""Return the revision identifier for a given revision information."""
856
revno, info = self._get_revision_info(revision)
860
def revision_id_to_revno(self, revision_id):
861
"""Given a revision id, return its revno"""
862
history = self.revision_history()
864
return history.index(revision_id) + 1
866
raise bzrlib.errors.NoSuchRevision(self, revision_id)
869
def get_revision_info(self, revision):
870
"""Return (revno, revision id) for revision identifier.
872
revision can be an integer, in which case it is assumed to be revno (though
873
this will translate negative values into positive ones)
874
revision can also be a string, in which case it is parsed for something like
875
'date:' or 'revid:' etc.
877
revno, rev_id = self._get_revision_info(revision)
879
raise bzrlib.errors.NoSuchRevision(self, revision)
882
def get_rev_id(self, revno, history=None):
883
"""Find the revision id of the specified revno."""
887
history = self.revision_history()
888
elif revno <= 0 or revno > len(history):
889
raise bzrlib.errors.NoSuchRevision(self, revno)
890
return history[revno - 1]
892
def _get_revision_info(self, revision):
893
"""Return (revno, revision id) for revision specifier.
895
revision can be an integer, in which case it is assumed to be revno
896
(though this will translate negative values into positive ones)
897
revision can also be a string, in which case it is parsed for something
898
like 'date:' or 'revid:' etc.
900
A revid is always returned. If it is None, the specifier referred to
901
the null revision. If the revid does not occur in the revision
902
history, revno will be None.
908
try:# Convert to int if possible
909
revision = int(revision)
912
revs = self.revision_history()
913
if isinstance(revision, int):
915
revno = len(revs) + revision + 1
918
rev_id = self.get_rev_id(revno, revs)
919
elif isinstance(revision, basestring):
920
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
921
if revision.startswith(prefix):
922
result = func(self, revs, revision)
924
revno, rev_id = result
927
rev_id = self.get_rev_id(revno, revs)
930
raise BzrError('No namespace registered for string: %r' %
933
raise TypeError('Unhandled revision type %s' % revision)
937
raise bzrlib.errors.NoSuchRevision(self, revision)
940
def _namespace_revno(self, revs, revision):
941
"""Lookup a revision by revision number"""
942
assert revision.startswith('revno:')
944
return (int(revision[6:]),)
947
REVISION_NAMESPACES['revno:'] = _namespace_revno
949
def _namespace_revid(self, revs, revision):
950
assert revision.startswith('revid:')
951
rev_id = revision[len('revid:'):]
953
return revs.index(rev_id) + 1, rev_id
956
REVISION_NAMESPACES['revid:'] = _namespace_revid
958
def _namespace_last(self, revs, revision):
959
assert revision.startswith('last:')
961
offset = int(revision[5:])
966
raise BzrError('You must supply a positive value for --revision last:XXX')
967
return (len(revs) - offset + 1,)
968
REVISION_NAMESPACES['last:'] = _namespace_last
970
def _namespace_tag(self, revs, revision):
971
assert revision.startswith('tag:')
972
raise BzrError('tag: namespace registered, but not implemented.')
973
REVISION_NAMESPACES['tag:'] = _namespace_tag
975
def _namespace_date(self, revs, revision):
976
assert revision.startswith('date:')
978
# Spec for date revisions:
980
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
981
# it can also start with a '+/-/='. '+' says match the first
982
# entry after the given date. '-' is match the first entry before the date
983
# '=' is match the first entry after, but still on the given date.
985
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
986
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
987
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
988
# May 13th, 2005 at 0:00
990
# So the proper way of saying 'give me all entries for today' is:
991
# -r {date:+today}:{date:-tomorrow}
992
# The default is '=' when not supplied
995
if val[:1] in ('+', '-', '='):
996
match_style = val[:1]
999
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1000
if val.lower() == 'yesterday':
1001
dt = today - datetime.timedelta(days=1)
1002
elif val.lower() == 'today':
1004
elif val.lower() == 'tomorrow':
1005
dt = today + datetime.timedelta(days=1)
1008
# This should be done outside the function to avoid recompiling it.
1009
_date_re = re.compile(
1010
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1012
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1014
m = _date_re.match(val)
1015
if not m or (not m.group('date') and not m.group('time')):
1016
raise BzrError('Invalid revision date %r' % revision)
1019
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1021
year, month, day = today.year, today.month, today.day
1023
hour = int(m.group('hour'))
1024
minute = int(m.group('minute'))
1025
if m.group('second'):
1026
second = int(m.group('second'))
1030
hour, minute, second = 0,0,0
1032
dt = datetime.datetime(year=year, month=month, day=day,
1033
hour=hour, minute=minute, second=second)
1037
if match_style == '-':
1039
elif match_style == '=':
1040
last = dt + datetime.timedelta(days=1)
1043
for i in range(len(revs)-1, -1, -1):
1044
r = self.get_revision(revs[i])
1045
# TODO: Handle timezone.
1046
dt = datetime.datetime.fromtimestamp(r.timestamp)
1047
if first >= dt and (last is None or dt >= last):
1050
for i in range(len(revs)):
1051
r = self.get_revision(revs[i])
1052
# TODO: Handle timezone.
1053
dt = datetime.datetime.fromtimestamp(r.timestamp)
1054
if first <= dt and (last is None or dt <= last):
1056
REVISION_NAMESPACES['date:'] = _namespace_date
1058
def revision_tree(self, revision_id):
1059
"""Return Tree for a revision on this branch.
1061
`revision_id` may be None for the null revision, in which case
1062
an `EmptyTree` is returned."""
1063
# TODO: refactor this to use an existing revision object
1064
# so we don't need to read it in twice.
1065
if revision_id == None:
1068
inv = self.get_revision_inventory(revision_id)
1069
return RevisionTree(self.weave_store, inv, revision_id)
1072
def working_tree(self):
1073
"""Return a `Tree` for the working copy."""
1074
from workingtree import WorkingTree
1075
return WorkingTree(self.base, self.read_working_inventory())
1078
def basis_tree(self):
1079
"""Return `Tree` object for last revision.
1081
If there are no revisions yet, return an `EmptyTree`.
1083
return self.revision_tree(self.last_revision())
1086
def rename_one(self, from_rel, to_rel):
1089
This can change the directory or the filename or both.
1093
tree = self.working_tree()
1094
inv = tree.inventory
1095
if not tree.has_filename(from_rel):
1096
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1097
if tree.has_filename(to_rel):
1098
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1100
file_id = inv.path2id(from_rel)
1102
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1104
if inv.path2id(to_rel):
1105
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1107
to_dir, to_tail = os.path.split(to_rel)
1108
to_dir_id = inv.path2id(to_dir)
1109
if to_dir_id == None and to_dir != '':
1110
raise BzrError("can't determine destination directory id for %r" % to_dir)
1112
mutter("rename_one:")
1113
mutter(" file_id {%s}" % file_id)
1114
mutter(" from_rel %r" % from_rel)
1115
mutter(" to_rel %r" % to_rel)
1116
mutter(" to_dir %r" % to_dir)
1117
mutter(" to_dir_id {%s}" % to_dir_id)
1119
inv.rename(file_id, to_dir_id, to_tail)
1121
from_abs = self.abspath(from_rel)
1122
to_abs = self.abspath(to_rel)
1124
os.rename(from_abs, to_abs)
1126
raise BzrError("failed to rename %r to %r: %s"
1127
% (from_abs, to_abs, e[1]),
1128
["rename rolled back"])
1130
self._write_inventory(inv)
1135
def move(self, from_paths, to_name):
1138
to_name must exist as a versioned directory.
1140
If to_name exists and is a directory, the files are moved into
1141
it, keeping their old names. If it is a directory,
1143
Note that to_name is only the last component of the new name;
1144
this doesn't change the directory.
1146
This returns a list of (from_path, to_path) pairs for each
1147
entry that is moved.
1152
## TODO: Option to move IDs only
1153
assert not isinstance(from_paths, basestring)
1154
tree = self.working_tree()
1155
inv = tree.inventory
1156
to_abs = self.abspath(to_name)
1157
if not isdir(to_abs):
1158
raise BzrError("destination %r is not a directory" % to_abs)
1159
if not tree.has_filename(to_name):
1160
raise BzrError("destination %r not in working directory" % to_abs)
1161
to_dir_id = inv.path2id(to_name)
1162
if to_dir_id == None and to_name != '':
1163
raise BzrError("destination %r is not a versioned directory" % to_name)
1164
to_dir_ie = inv[to_dir_id]
1165
if to_dir_ie.kind not in ('directory', 'root_directory'):
1166
raise BzrError("destination %r is not a directory" % to_abs)
1168
to_idpath = inv.get_idpath(to_dir_id)
1170
for f in from_paths:
1171
if not tree.has_filename(f):
1172
raise BzrError("%r does not exist in working tree" % f)
1173
f_id = inv.path2id(f)
1175
raise BzrError("%r is not versioned" % f)
1176
name_tail = splitpath(f)[-1]
1177
dest_path = appendpath(to_name, name_tail)
1178
if tree.has_filename(dest_path):
1179
raise BzrError("destination %r already exists" % dest_path)
1180
if f_id in to_idpath:
1181
raise BzrError("can't move %r to a subdirectory of itself" % f)
1183
# OK, so there's a race here, it's possible that someone will
1184
# create a file in this interval and then the rename might be
1185
# left half-done. But we should have caught most problems.
1187
for f in from_paths:
1188
name_tail = splitpath(f)[-1]
1189
dest_path = appendpath(to_name, name_tail)
1190
result.append((f, dest_path))
1191
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1193
os.rename(self.abspath(f), self.abspath(dest_path))
1195
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1196
["rename rolled back"])
1198
self._write_inventory(inv)
1205
def revert(self, filenames, old_tree=None, backups=True):
1206
"""Restore selected files to the versions from a previous tree.
1209
If true (default) backups are made of files before
1212
from bzrlib.errors import NotVersionedError, BzrError
1213
from bzrlib.atomicfile import AtomicFile
1214
from bzrlib.osutils import backup_file
1216
inv = self.read_working_inventory()
1217
if old_tree is None:
1218
old_tree = self.basis_tree()
1219
old_inv = old_tree.inventory
1222
for fn in filenames:
1223
file_id = inv.path2id(fn)
1225
raise NotVersionedError("not a versioned file", fn)
1226
if not old_inv.has_id(file_id):
1227
raise BzrError("file not present in old tree", fn, file_id)
1228
nids.append((fn, file_id))
1230
# TODO: Rename back if it was previously at a different location
1232
# TODO: If given a directory, restore the entire contents from
1233
# the previous version.
1235
# TODO: Make a backup to a temporary file.
1237
# TODO: If the file previously didn't exist, delete it?
1238
for fn, file_id in nids:
1241
f = AtomicFile(fn, 'wb')
1243
f.write(old_tree.get_file(file_id).read())
1249
def pending_merges(self):
1250
"""Return a list of pending merges.
1252
These are revisions that have been merged into the working
1253
directory but not yet committed.
1255
cfn = self.controlfilename('pending-merges')
1256
if not os.path.exists(cfn):
1259
for l in self.controlfile('pending-merges', 'r').readlines():
1260
p.append(l.rstrip('\n'))
1264
def add_pending_merge(self, revision_id):
1265
validate_revision_id(revision_id)
1266
# TODO: Perhaps should check at this point that the
1267
# history of the revision is actually present?
1268
p = self.pending_merges()
1269
if revision_id in p:
1271
p.append(revision_id)
1272
self.set_pending_merges(p)
1275
def set_pending_merges(self, rev_list):
1276
from bzrlib.atomicfile import AtomicFile
1279
f = AtomicFile(self.controlfilename('pending-merges'))
1290
def get_parent(self):
1291
"""Return the parent location of the branch.
1293
This is the default location for push/pull/missing. The usual
1294
pattern is that the user can override it by specifying a
1298
_locs = ['parent', 'pull', 'x-pull']
1301
return self.controlfile(l, 'r').read().strip('\n')
1303
if e.errno != errno.ENOENT:
1308
def set_parent(self, url):
1309
# TODO: Maybe delete old location files?
1310
from bzrlib.atomicfile import AtomicFile
1313
f = AtomicFile(self.controlfilename('parent'))
1322
def check_revno(self, revno):
1324
Check whether a revno corresponds to any revision.
1325
Zero (the NULL revision) is considered valid.
1328
self.check_real_revno(revno)
1330
def check_real_revno(self, revno):
1332
Check whether a revno corresponds to a real revision.
1333
Zero (the NULL revision) is considered invalid
1335
if revno < 1 or revno > self.revno():
1336
raise InvalidRevisionNumber(revno)
1341
class ScratchBranch(Branch):
1342
"""Special test class: a branch that cleans up after itself.
1344
>>> b = ScratchBranch()
1352
def __init__(self, files=[], dirs=[], base=None):
1353
"""Make a test branch.
1355
This creates a temporary directory and runs init-tree in it.
1357
If any files are listed, they are created in the working copy.
1359
from tempfile import mkdtemp
1364
Branch.__init__(self, base, init=init)
1366
os.mkdir(self.abspath(d))
1369
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1374
>>> orig = ScratchBranch(files=["file1", "file2"])
1375
>>> clone = orig.clone()
1376
>>> os.path.samefile(orig.base, clone.base)
1378
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1381
from shutil import copytree
1382
from tempfile import mkdtemp
1385
copytree(self.base, base, symlinks=True)
1386
return ScratchBranch(base=base)
1394
"""Destroy the test branch, removing the scratch directory."""
1395
from shutil import rmtree
1398
mutter("delete ScratchBranch %s" % self.base)
1401
# Work around for shutil.rmtree failing on Windows when
1402
# readonly files are encountered
1403
mutter("hit exception in destroying ScratchBranch: %s" % e)
1404
for root, dirs, files in os.walk(self.base, topdown=False):
1406
os.chmod(os.path.join(root, name), 0700)
1412
######################################################################
1416
def is_control_file(filename):
1417
## FIXME: better check
1418
filename = os.path.normpath(filename)
1419
while filename != '':
1420
head, tail = os.path.split(filename)
1421
## mutter('check %r for control file' % ((head, tail), ))
1422
if tail == bzrlib.BZRDIR:
1424
if filename == head:
1431
def gen_file_id(name):
1432
"""Return new file id.
1434
This should probably generate proper UUIDs, but for the moment we
1435
cope with just randomness because running uuidgen every time is
1438
from binascii import hexlify
1439
from time import time
1441
# get last component
1442
idx = name.rfind('/')
1444
name = name[idx+1 : ]
1445
idx = name.rfind('\\')
1447
name = name[idx+1 : ]
1449
# make it not a hidden file
1450
name = name.lstrip('.')
1452
# remove any wierd characters; we don't escape them but rather
1453
# just pull them out
1454
name = re.sub(r'[^\w.]', '', name)
1456
s = hexlify(rand_bytes(8))
1457
return '-'.join((name, compact_date(time()), s))
1461
"""Return a new tree-root file id."""
1462
return gen_file_id('TREE_ROOT')
1465
def pull_loc(branch):
1466
# TODO: Should perhaps just make attribute be 'base' in
1467
# RemoteBranch and Branch?
1468
if hasattr(branch, "baseurl"):
1469
return branch.baseurl
1474
def copy_branch(branch_from, to_location, revision=None):
1475
"""Copy branch_from into the existing directory to_location.
1478
If not None, only revisions up to this point will be copied.
1479
The head of the new branch will be that revision. Can be a
1483
The name of a local directory that exists but is empty.
1485
# TODO: This could be done *much* more efficiently by just copying
1486
# all the whole weaves and revisions, rather than getting one
1487
# revision at a time.
1488
from bzrlib.merge import merge
1489
from bzrlib.branch import Branch
1491
assert isinstance(branch_from, Branch)
1492
assert isinstance(to_location, basestring)
1494
br_to = Branch(to_location, init=True)
1495
br_to.set_root_id(branch_from.get_root_id())
1496
if revision is None:
1499
revno, rev_id = branch_from.get_revision_info(revision)
1500
br_to.update_revisions(branch_from, stop_revno=revno)
1501
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1502
check_clean=False, ignore_zero=True)
1504
from_location = pull_loc(branch_from)
1505
br_to.set_parent(pull_loc(branch_from))