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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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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 new perfect-fit revisions.
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from bzrlib.fetch import greedy_fetch
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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
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Commit().commit(self, *args, **kw)
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def lookup_revision(self, revision):
849
"""Return the revision identifier for a given revision information."""
850
revno, info = self._get_revision_info(revision)
854
def revision_id_to_revno(self, revision_id):
855
"""Given a revision id, return its revno"""
856
history = self.revision_history()
858
return history.index(revision_id) + 1
860
raise bzrlib.errors.NoSuchRevision(self, revision_id)
863
def get_revision_info(self, revision):
864
"""Return (revno, revision id) for revision identifier.
866
revision can be an integer, in which case it is assumed to be revno (though
867
this will translate negative values into positive ones)
868
revision can also be a string, in which case it is parsed for something like
869
'date:' or 'revid:' etc.
871
revno, rev_id = self._get_revision_info(revision)
873
raise bzrlib.errors.NoSuchRevision(self, revision)
876
def get_rev_id(self, revno, history=None):
877
"""Find the revision id of the specified revno."""
881
history = self.revision_history()
882
elif revno <= 0 or revno > len(history):
883
raise bzrlib.errors.NoSuchRevision(self, revno)
884
return history[revno - 1]
886
def _get_revision_info(self, revision):
887
"""Return (revno, revision id) for revision specifier.
889
revision can be an integer, in which case it is assumed to be revno
890
(though this will translate negative values into positive ones)
891
revision can also be a string, in which case it is parsed for something
892
like 'date:' or 'revid:' etc.
894
A revid is always returned. If it is None, the specifier referred to
895
the null revision. If the revid does not occur in the revision
896
history, revno will be None.
902
try:# Convert to int if possible
903
revision = int(revision)
906
revs = self.revision_history()
907
if isinstance(revision, int):
909
revno = len(revs) + revision + 1
912
rev_id = self.get_rev_id(revno, revs)
913
elif isinstance(revision, basestring):
914
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
915
if revision.startswith(prefix):
916
result = func(self, revs, revision)
918
revno, rev_id = result
921
rev_id = self.get_rev_id(revno, revs)
924
raise BzrError('No namespace registered for string: %r' %
927
raise TypeError('Unhandled revision type %s' % revision)
931
raise bzrlib.errors.NoSuchRevision(self, revision)
934
def _namespace_revno(self, revs, revision):
935
"""Lookup a revision by revision number"""
936
assert revision.startswith('revno:')
938
return (int(revision[6:]),)
941
REVISION_NAMESPACES['revno:'] = _namespace_revno
943
def _namespace_revid(self, revs, revision):
944
assert revision.startswith('revid:')
945
rev_id = revision[len('revid:'):]
947
return revs.index(rev_id) + 1, rev_id
950
REVISION_NAMESPACES['revid:'] = _namespace_revid
952
def _namespace_last(self, revs, revision):
953
assert revision.startswith('last:')
955
offset = int(revision[5:])
960
raise BzrError('You must supply a positive value for --revision last:XXX')
961
return (len(revs) - offset + 1,)
962
REVISION_NAMESPACES['last:'] = _namespace_last
964
def _namespace_tag(self, revs, revision):
965
assert revision.startswith('tag:')
966
raise BzrError('tag: namespace registered, but not implemented.')
967
REVISION_NAMESPACES['tag:'] = _namespace_tag
969
def _namespace_date(self, revs, revision):
970
assert revision.startswith('date:')
972
# Spec for date revisions:
974
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
975
# it can also start with a '+/-/='. '+' says match the first
976
# entry after the given date. '-' is match the first entry before the date
977
# '=' is match the first entry after, but still on the given date.
979
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
980
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
981
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
982
# May 13th, 2005 at 0:00
984
# So the proper way of saying 'give me all entries for today' is:
985
# -r {date:+today}:{date:-tomorrow}
986
# The default is '=' when not supplied
989
if val[:1] in ('+', '-', '='):
990
match_style = val[:1]
993
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
994
if val.lower() == 'yesterday':
995
dt = today - datetime.timedelta(days=1)
996
elif val.lower() == 'today':
998
elif val.lower() == 'tomorrow':
999
dt = today + datetime.timedelta(days=1)
1002
# This should be done outside the function to avoid recompiling it.
1003
_date_re = re.compile(
1004
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1006
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1008
m = _date_re.match(val)
1009
if not m or (not m.group('date') and not m.group('time')):
1010
raise BzrError('Invalid revision date %r' % revision)
1013
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1015
year, month, day = today.year, today.month, today.day
1017
hour = int(m.group('hour'))
1018
minute = int(m.group('minute'))
1019
if m.group('second'):
1020
second = int(m.group('second'))
1024
hour, minute, second = 0,0,0
1026
dt = datetime.datetime(year=year, month=month, day=day,
1027
hour=hour, minute=minute, second=second)
1031
if match_style == '-':
1033
elif match_style == '=':
1034
last = dt + datetime.timedelta(days=1)
1037
for i in range(len(revs)-1, -1, -1):
1038
r = self.get_revision(revs[i])
1039
# TODO: Handle timezone.
1040
dt = datetime.datetime.fromtimestamp(r.timestamp)
1041
if first >= dt and (last is None or dt >= last):
1044
for i in range(len(revs)):
1045
r = self.get_revision(revs[i])
1046
# TODO: Handle timezone.
1047
dt = datetime.datetime.fromtimestamp(r.timestamp)
1048
if first <= dt and (last is None or dt <= last):
1050
REVISION_NAMESPACES['date:'] = _namespace_date
1052
def revision_tree(self, revision_id):
1053
"""Return Tree for a revision on this branch.
1055
`revision_id` may be None for the null revision, in which case
1056
an `EmptyTree` is returned."""
1057
# TODO: refactor this to use an existing revision object
1058
# so we don't need to read it in twice.
1059
if revision_id == None:
1062
inv = self.get_revision_inventory(revision_id)
1063
return RevisionTree(self.weave_store, inv, revision_id)
1066
def working_tree(self):
1067
"""Return a `Tree` for the working copy."""
1068
from workingtree import WorkingTree
1069
return WorkingTree(self.base, self.read_working_inventory())
1072
def basis_tree(self):
1073
"""Return `Tree` object for last revision.
1075
If there are no revisions yet, return an `EmptyTree`.
1077
return self.revision_tree(self.last_revision())
1080
def rename_one(self, from_rel, to_rel):
1083
This can change the directory or the filename or both.
1087
tree = self.working_tree()
1088
inv = tree.inventory
1089
if not tree.has_filename(from_rel):
1090
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1091
if tree.has_filename(to_rel):
1092
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1094
file_id = inv.path2id(from_rel)
1096
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1098
if inv.path2id(to_rel):
1099
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1101
to_dir, to_tail = os.path.split(to_rel)
1102
to_dir_id = inv.path2id(to_dir)
1103
if to_dir_id == None and to_dir != '':
1104
raise BzrError("can't determine destination directory id for %r" % to_dir)
1106
mutter("rename_one:")
1107
mutter(" file_id {%s}" % file_id)
1108
mutter(" from_rel %r" % from_rel)
1109
mutter(" to_rel %r" % to_rel)
1110
mutter(" to_dir %r" % to_dir)
1111
mutter(" to_dir_id {%s}" % to_dir_id)
1113
inv.rename(file_id, to_dir_id, to_tail)
1115
from_abs = self.abspath(from_rel)
1116
to_abs = self.abspath(to_rel)
1118
os.rename(from_abs, to_abs)
1120
raise BzrError("failed to rename %r to %r: %s"
1121
% (from_abs, to_abs, e[1]),
1122
["rename rolled back"])
1124
self._write_inventory(inv)
1129
def move(self, from_paths, to_name):
1132
to_name must exist as a versioned directory.
1134
If to_name exists and is a directory, the files are moved into
1135
it, keeping their old names. If it is a directory,
1137
Note that to_name is only the last component of the new name;
1138
this doesn't change the directory.
1140
This returns a list of (from_path, to_path) pairs for each
1141
entry that is moved.
1146
## TODO: Option to move IDs only
1147
assert not isinstance(from_paths, basestring)
1148
tree = self.working_tree()
1149
inv = tree.inventory
1150
to_abs = self.abspath(to_name)
1151
if not isdir(to_abs):
1152
raise BzrError("destination %r is not a directory" % to_abs)
1153
if not tree.has_filename(to_name):
1154
raise BzrError("destination %r not in working directory" % to_abs)
1155
to_dir_id = inv.path2id(to_name)
1156
if to_dir_id == None and to_name != '':
1157
raise BzrError("destination %r is not a versioned directory" % to_name)
1158
to_dir_ie = inv[to_dir_id]
1159
if to_dir_ie.kind not in ('directory', 'root_directory'):
1160
raise BzrError("destination %r is not a directory" % to_abs)
1162
to_idpath = inv.get_idpath(to_dir_id)
1164
for f in from_paths:
1165
if not tree.has_filename(f):
1166
raise BzrError("%r does not exist in working tree" % f)
1167
f_id = inv.path2id(f)
1169
raise BzrError("%r is not versioned" % f)
1170
name_tail = splitpath(f)[-1]
1171
dest_path = appendpath(to_name, name_tail)
1172
if tree.has_filename(dest_path):
1173
raise BzrError("destination %r already exists" % dest_path)
1174
if f_id in to_idpath:
1175
raise BzrError("can't move %r to a subdirectory of itself" % f)
1177
# OK, so there's a race here, it's possible that someone will
1178
# create a file in this interval and then the rename might be
1179
# left half-done. But we should have caught most problems.
1181
for f in from_paths:
1182
name_tail = splitpath(f)[-1]
1183
dest_path = appendpath(to_name, name_tail)
1184
result.append((f, dest_path))
1185
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1187
os.rename(self.abspath(f), self.abspath(dest_path))
1189
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1190
["rename rolled back"])
1192
self._write_inventory(inv)
1199
def revert(self, filenames, old_tree=None, backups=True):
1200
"""Restore selected files to the versions from a previous tree.
1203
If true (default) backups are made of files before
1206
from bzrlib.errors import NotVersionedError, BzrError
1207
from bzrlib.atomicfile import AtomicFile
1208
from bzrlib.osutils import backup_file
1210
inv = self.read_working_inventory()
1211
if old_tree is None:
1212
old_tree = self.basis_tree()
1213
old_inv = old_tree.inventory
1216
for fn in filenames:
1217
file_id = inv.path2id(fn)
1219
raise NotVersionedError("not a versioned file", fn)
1220
if not old_inv.has_id(file_id):
1221
raise BzrError("file not present in old tree", fn, file_id)
1222
nids.append((fn, file_id))
1224
# TODO: Rename back if it was previously at a different location
1226
# TODO: If given a directory, restore the entire contents from
1227
# the previous version.
1229
# TODO: Make a backup to a temporary file.
1231
# TODO: If the file previously didn't exist, delete it?
1232
for fn, file_id in nids:
1235
f = AtomicFile(fn, 'wb')
1237
f.write(old_tree.get_file(file_id).read())
1243
def pending_merges(self):
1244
"""Return a list of pending merges.
1246
These are revisions that have been merged into the working
1247
directory but not yet committed.
1249
cfn = self.controlfilename('pending-merges')
1250
if not os.path.exists(cfn):
1253
for l in self.controlfile('pending-merges', 'r').readlines():
1254
p.append(l.rstrip('\n'))
1258
def add_pending_merge(self, revision_id):
1259
validate_revision_id(revision_id)
1260
# TODO: Perhaps should check at this point that the
1261
# history of the revision is actually present?
1262
p = self.pending_merges()
1263
if revision_id in p:
1265
p.append(revision_id)
1266
self.set_pending_merges(p)
1269
def set_pending_merges(self, rev_list):
1270
from bzrlib.atomicfile import AtomicFile
1273
f = AtomicFile(self.controlfilename('pending-merges'))
1284
def get_parent(self):
1285
"""Return the parent location of the branch.
1287
This is the default location for push/pull/missing. The usual
1288
pattern is that the user can override it by specifying a
1292
_locs = ['parent', 'pull', 'x-pull']
1295
return self.controlfile(l, 'r').read().strip('\n')
1297
if e.errno != errno.ENOENT:
1302
def set_parent(self, url):
1303
# TODO: Maybe delete old location files?
1304
from bzrlib.atomicfile import AtomicFile
1307
f = AtomicFile(self.controlfilename('parent'))
1316
def check_revno(self, revno):
1318
Check whether a revno corresponds to any revision.
1319
Zero (the NULL revision) is considered valid.
1322
self.check_real_revno(revno)
1324
def check_real_revno(self, revno):
1326
Check whether a revno corresponds to a real revision.
1327
Zero (the NULL revision) is considered invalid
1329
if revno < 1 or revno > self.revno():
1330
raise InvalidRevisionNumber(revno)
1335
class ScratchBranch(Branch):
1336
"""Special test class: a branch that cleans up after itself.
1338
>>> b = ScratchBranch()
1346
def __init__(self, files=[], dirs=[], base=None):
1347
"""Make a test branch.
1349
This creates a temporary directory and runs init-tree in it.
1351
If any files are listed, they are created in the working copy.
1353
from tempfile import mkdtemp
1358
Branch.__init__(self, base, init=init)
1360
os.mkdir(self.abspath(d))
1363
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1368
>>> orig = ScratchBranch(files=["file1", "file2"])
1369
>>> clone = orig.clone()
1370
>>> os.path.samefile(orig.base, clone.base)
1372
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1375
from shutil import copytree
1376
from tempfile import mkdtemp
1379
copytree(self.base, base, symlinks=True)
1380
return ScratchBranch(base=base)
1388
"""Destroy the test branch, removing the scratch directory."""
1389
from shutil import rmtree
1392
mutter("delete ScratchBranch %s" % self.base)
1395
# Work around for shutil.rmtree failing on Windows when
1396
# readonly files are encountered
1397
mutter("hit exception in destroying ScratchBranch: %s" % e)
1398
for root, dirs, files in os.walk(self.base, topdown=False):
1400
os.chmod(os.path.join(root, name), 0700)
1406
######################################################################
1410
def is_control_file(filename):
1411
## FIXME: better check
1412
filename = os.path.normpath(filename)
1413
while filename != '':
1414
head, tail = os.path.split(filename)
1415
## mutter('check %r for control file' % ((head, tail), ))
1416
if tail == bzrlib.BZRDIR:
1418
if filename == head:
1425
def gen_file_id(name):
1426
"""Return new file id.
1428
This should probably generate proper UUIDs, but for the moment we
1429
cope with just randomness because running uuidgen every time is
1432
from binascii import hexlify
1433
from time import time
1435
# get last component
1436
idx = name.rfind('/')
1438
name = name[idx+1 : ]
1439
idx = name.rfind('\\')
1441
name = name[idx+1 : ]
1443
# make it not a hidden file
1444
name = name.lstrip('.')
1446
# remove any wierd characters; we don't escape them but rather
1447
# just pull them out
1448
name = re.sub(r'[^\w.]', '', name)
1450
s = hexlify(rand_bytes(8))
1451
return '-'.join((name, compact_date(time()), s))
1455
"""Return a new tree-root file id."""
1456
return gen_file_id('TREE_ROOT')
1459
def pull_loc(branch):
1460
# TODO: Should perhaps just make attribute be 'base' in
1461
# RemoteBranch and Branch?
1462
if hasattr(branch, "baseurl"):
1463
return branch.baseurl
1468
def copy_branch(branch_from, to_location, revision=None):
1469
"""Copy branch_from into the existing directory to_location.
1472
If not None, only revisions up to this point will be copied.
1473
The head of the new branch will be that revision.
1476
The name of a local directory that exists but is empty.
1478
from bzrlib.merge import merge
1479
from bzrlib.branch import Branch
1481
assert isinstance(branch_from, Branch)
1482
assert isinstance(to_location, basestring)
1484
br_to = Branch(to_location, init=True)
1485
br_to.set_root_id(branch_from.get_root_id())
1486
if revision is None:
1487
revno = branch_from.revno()
1489
revno, rev_id = branch_from.get_revision_info(revision)
1490
br_to.update_revisions(branch_from, stop_revision=revno)
1491
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1492
check_clean=False, ignore_zero=True)
1494
from_location = pull_loc(branch_from)
1495
br_to.set_parent(pull_loc(branch_from))