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# Copyright (C) 2005 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from cStringIO import StringIO
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from bzrlib.trace import mutter, note
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from bzrlib.osutils import isdir, quotefn, compact_date, rand_bytes, \
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sha_file, appendpath, file_kind
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from bzrlib.errors import (BzrError, InvalidRevisionNumber, InvalidRevisionId,
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from bzrlib.textui import show_status
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from bzrlib.revision import Revision
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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from bzrlib.inventory import Inventory
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from bzrlib.weavestore import WeaveStore
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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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from bzrlib.store import ImmutableStore
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self.base = os.path.realpath(base)
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self.base = find_branch_root(base)
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self.base = os.path.realpath(base)
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if not isdir(self.controlfilename('.')):
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from errors import NotBranchError
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raise NotBranchError("not a bzr branch: %s" % quotefn(base),
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['use "bzr init" to initialize a new working tree',
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'current bzr can only operate from top-of-tree'])
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self.weave_store = WeaveStore(self.controlfilename('weaves'))
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self.revision_store = ImmutableStore(self.controlfilename('revision-store'))
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return '%s(%r)' % (self.__class__.__name__, self.base)
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if self._lock_mode or self._lock:
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from warnings import warn
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warn("branch %r was not explicitly unlocked" % self)
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def lock_write(self):
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if self._lock_mode != 'w':
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from errors import LockError
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raise LockError("can't upgrade to a write lock from %r" %
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self._lock_count += 1
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from bzrlib.lock import WriteLock
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self._lock = WriteLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'w'
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assert self._lock_mode in ('r', 'w'), \
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"invalid lock mode %r" % self._lock_mode
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self._lock_count += 1
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from bzrlib.lock import ReadLock
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self._lock = ReadLock(self.controlfilename('branch-lock'))
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self._lock_mode = 'r'
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if not self._lock_mode:
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from errors import LockError
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raise LockError('branch %r is not locked' % (self))
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if self._lock_count > 1:
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self._lock_count -= 1
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self._lock_mode = self._lock_count = None
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def abspath(self, name):
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"""Return absolute filename for something in the branch"""
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return os.path.join(self.base, name)
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def relpath(self, path):
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"""Return path relative to this branch of something inside it.
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Raises an error if path is not in this branch."""
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return _relpath(self.base, path)
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def controlfilename(self, file_or_path):
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"""Return location relative to branch."""
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if isinstance(file_or_path, basestring):
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file_or_path = [file_or_path]
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return os.path.join(self.base, bzrlib.BZRDIR, *file_or_path)
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def controlfile(self, file_or_path, mode='r'):
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"""Open a control file for this branch.
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There are two classes of file in the control directory: text
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and binary. binary files are untranslated byte streams. Text
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control files are stored with Unix newlines and in UTF-8, even
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if the platform or locale defaults are different.
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Controlfiles should almost never be opened in write mode but
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rather should be atomically copied and replaced using atomicfile.
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fn = self.controlfilename(file_or_path)
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if mode == 'rb' or mode == 'wb':
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return file(fn, mode)
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elif mode == 'r' or mode == 'w':
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# open in binary mode anyhow so there's no newline translation;
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# codecs uses line buffering by default; don't want that.
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return codecs.open(fn, mode + 'b', 'utf-8',
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raise BzrError("invalid controlfile mode %r" % mode)
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def _make_control(self):
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os.mkdir(self.controlfilename([]))
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self.controlfile('README', 'w').write(
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"This is a Bazaar-NG control directory.\n"
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"Do not change any files in this directory.\n")
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self.controlfile('branch-format', 'w').write(BZR_BRANCH_FORMAT_5)
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for d in ('text-store', 'revision-store',
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os.mkdir(self.controlfilename(d))
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for f in ('revision-history', 'merged-patches',
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'pending-merged-patches', 'branch-name',
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self.controlfile(f, 'w').write('')
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mutter('created control directory in ' + self.base)
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# if we want per-tree root ids then this is the place to set
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# them; they're not needed for now and so ommitted for
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f = self.controlfile('inventory','w')
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bzrlib.xml5.serializer_v5.write_inventory(Inventory(), f)
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def _check_format(self):
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"""Check this branch format is supported.
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The format level is stored, as an integer, in
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self._branch_format for code that needs to check it later.
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In the future, we might need different in-memory Branch
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classes to support downlevel branches. But not yet.
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fmt = self.controlfile('branch-format', 'r').read()
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if fmt == BZR_BRANCH_FORMAT_5:
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self._branch_format = 5
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raise BzrError('sorry, branch format "%s" not supported; '
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'use a different bzr version, '
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'or run "bzr upgrade", '
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'or remove the .bzr directory and "bzr init" again'
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% fmt.rstrip('\n\r'))
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def get_root_id(self):
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"""Return the id of this branches root"""
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inv = self.read_working_inventory()
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return inv.root.file_id
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def set_root_id(self, file_id):
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inv = self.read_working_inventory()
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orig_root_id = inv.root.file_id
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del inv._byid[inv.root.file_id]
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inv.root.file_id = file_id
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inv._byid[inv.root.file_id] = inv.root
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if entry.parent_id in (None, orig_root_id):
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entry.parent_id = inv.root.file_id
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self._write_inventory(inv)
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def read_working_inventory(self):
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"""Read the working inventory."""
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# ElementTree does its own conversion from UTF-8, so open in
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f = self.controlfile('inventory', 'rb')
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return bzrlib.xml5.serializer_v5.read_inventory(f)
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def _write_inventory(self, inv):
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"""Update the working inventory.
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That is to say, the inventory describing changes underway, that
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will be committed to the next revision.
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from bzrlib.atomicfile import AtomicFile
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f = AtomicFile(self.controlfilename('inventory'), 'wb')
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bzrlib.xml5.serializer_v5.write_inventory(inv, f)
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mutter('wrote working inventory')
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inventory = property(read_working_inventory, _write_inventory, None,
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"""Inventory for the working copy.""")
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def add(self, files, ids=None):
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"""Make files versioned.
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Note that the command line normally calls smart_add instead,
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which can automatically recurse.
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This puts the files in the Added state, so that they will be
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recorded by the next commit.
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List of paths to add, relative to the base of the tree.
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If set, use these instead of automatically generated ids.
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Must be the same length as the list of files, but may
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contain None for ids that are to be autogenerated.
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TODO: Perhaps have an option to add the ids even if the files do
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TODO: Perhaps yield the ids and paths as they're added.
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# TODO: Re-adding a file that is removed in the working copy
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# should probably put it back with the previous ID.
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if isinstance(files, basestring):
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assert(ids is None or isinstance(ids, basestring))
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ids = [None] * len(files)
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assert(len(ids) == len(files))
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inv = self.read_working_inventory()
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for f,file_id in zip(files, ids):
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if is_control_file(f):
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raise BzrError("cannot add control file %s" % quotefn(f))
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raise BzrError("cannot add top-level %r" % f)
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fullpath = os.path.normpath(self.abspath(f))
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kind = file_kind(fullpath)
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# maybe something better?
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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if kind != 'file' and kind != 'directory':
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raise BzrError('cannot add: not a regular file or directory: %s' % quotefn(f))
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file_id = gen_file_id(f)
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inv.add_path(f, kind=kind, file_id=file_id)
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mutter("add file %s file_id:{%s} kind=%r" % (f, file_id, kind))
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self._write_inventory(inv)
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def print_file(self, file, revno):
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"""Print `file` to stdout."""
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tree = self.revision_tree(self.lookup_revision(revno))
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# use inventory as it was in that revision
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file_id = tree.inventory.path2id(file)
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raise BzrError("%r is not present in revision %s" % (file, revno))
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tree.print_file(file_id)
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def remove(self, files, verbose=False):
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"""Mark nominated files for removal from the inventory.
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This does not remove their text. This does not run on
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TODO: Refuse to remove modified files unless --force is given?
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TODO: Do something useful with directories.
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TODO: Should this remove the text or not? Tough call; not
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removing may be useful and the user can just use use rm, and
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is the opposite of add. Removing it is consistent with most
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other tools. Maybe an option.
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## TODO: Normalize names
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## TODO: Remove nested loops; better scalability
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if isinstance(files, basestring):
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tree = self.working_tree()
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# do this before any modifications
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raise BzrError("cannot remove unversioned file %s" % quotefn(f))
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mutter("remove inventory entry %s {%s}" % (quotefn(f), fid))
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# having remove it, it must be either ignored or unknown
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if tree.is_ignored(f):
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show_status(new_status, inv[fid].kind, quotefn(f))
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self._write_inventory(inv)
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# FIXME: this doesn't need to be a branch method
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def set_inventory(self, new_inventory_list):
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from bzrlib.inventory import Inventory, InventoryEntry
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inv = Inventory(self.get_root_id())
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for path, file_id, parent, kind in new_inventory_list:
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name = os.path.basename(path)
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inv.add(InventoryEntry(file_id, name, kind, parent))
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self._write_inventory(inv)
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"""Return all unknown files.
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These are files in the working directory that are not versioned or
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control files or ignored.
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>>> b = ScratchBranch(files=['foo', 'foo~'])
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>>> list(b.unknowns())
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>>> list(b.unknowns())
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>>> list(b.unknowns())
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return self.working_tree().unknowns()
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def append_revision(self, *revision_ids):
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from bzrlib.atomicfile import AtomicFile
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for revision_id in revision_ids:
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mutter("add {%s} to revision-history" % revision_id)
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rev_history = self.revision_history()
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rev_history.extend(revision_ids)
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f = AtomicFile(self.controlfilename('revision-history'))
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for rev_id in rev_history:
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def get_revision_xml_file(self, revision_id):
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"""Return XML file object for revision object."""
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if not revision_id or not isinstance(revision_id, basestring):
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raise InvalidRevisionId(revision_id)
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return self.revision_store[revision_id]
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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get_revision_xml = get_revision_xml_file
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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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# In the future, revision entries will be signed. At that
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# point, it is probably best *not* to include the signature
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# in the revision hash. Because that lets you re-sign
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# the revision, (add signatures/remove signatures) and still
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# have all hash pointers stay consistent.
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# But for now, just hash the contents.
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return bzrlib.osutils.sha_file(self.get_revision_xml(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_patch(self):
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"""Return last patch hash, or None if no history.
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ph = self.revision_history()
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def missing_revisions(self, other, stop_revision=None, diverged_ok=False):
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If self and other have not diverged, return a list of the revisions
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present in other, but missing from self.
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>>> from bzrlib.commit import commit
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>>> bzrlib.trace.silent = True
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>>> br1 = ScratchBranch()
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>>> br2 = ScratchBranch()
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>>> br1.missing_revisions(br2)
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>>> commit(br2, "lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> br2.missing_revisions(br1)
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>>> commit(br1, "lala!", rev_id="REVISION-ID-1")
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>>> br1.missing_revisions(br2)
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>>> commit(br2, "lala!", rev_id="REVISION-ID-2A")
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>>> br1.missing_revisions(br2)
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>>> commit(br1, "lala!", rev_id="REVISION-ID-2B")
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>>> br1.missing_revisions(br2)
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Traceback (most recent call last):
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DivergedBranches: These branches have diverged.
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self_history = self.revision_history()
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self_len = len(self_history)
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other_history = other.revision_history()
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other_len = len(other_history)
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common_index = min(self_len, other_len) -1
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if common_index >= 0 and \
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self_history[common_index] != other_history[common_index]:
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raise DivergedBranches(self, other)
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if stop_revision is None:
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stop_revision = other_len
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elif stop_revision > other_len:
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raise bzrlib.errors.NoSuchRevision(self, stop_revision)
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return other_history[self_len:stop_revision]
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def update_revisions(self, other, stop_revision=None):
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"""Pull in all new revisions from other branch.
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from bzrlib.fetch import greedy_fetch
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pb = bzrlib.ui.ui_factory.progress_bar()
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pb.update('comparing histories')
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revision_ids = self.missing_revisions(other, stop_revision)
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if len(revision_ids) > 0:
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count = greedy_fetch(self, other, revision_ids[-1], pb)[0]
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self.append_revision(*revision_ids)
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## note("Added %d revisions." % count)
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def commit(self, *args, **kw):
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from bzrlib.commit import Commit
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Commit().commit(self, *args, **kw)
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def lookup_revision(self, revision):
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"""Return the revision identifier for a given revision information."""
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revno, info = self._get_revision_info(revision)
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def revision_id_to_revno(self, revision_id):
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"""Given a revision id, return its revno"""
843
history = self.revision_history()
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return history.index(revision_id) + 1
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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def get_revision_info(self, revision):
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"""Return (revno, revision id) for revision identifier.
853
revision can be an integer, in which case it is assumed to be revno (though
854
this will translate negative values into positive ones)
855
revision can also be a string, in which case it is parsed for something like
856
'date:' or 'revid:' etc.
858
revno, rev_id = self._get_revision_info(revision)
860
raise bzrlib.errors.NoSuchRevision(self, revision)
863
def get_rev_id(self, revno, history=None):
864
"""Find the revision id of the specified revno."""
868
history = self.revision_history()
869
elif revno <= 0 or revno > len(history):
870
raise bzrlib.errors.NoSuchRevision(self, revno)
871
return history[revno - 1]
873
def _get_revision_info(self, revision):
874
"""Return (revno, revision id) for revision specifier.
876
revision can be an integer, in which case it is assumed to be revno
877
(though this will translate negative values into positive ones)
878
revision can also be a string, in which case it is parsed for something
879
like 'date:' or 'revid:' etc.
881
A revid is always returned. If it is None, the specifier referred to
882
the null revision. If the revid does not occur in the revision
883
history, revno will be None.
889
try:# Convert to int if possible
890
revision = int(revision)
893
revs = self.revision_history()
894
if isinstance(revision, int):
896
revno = len(revs) + revision + 1
899
rev_id = self.get_rev_id(revno, revs)
900
elif isinstance(revision, basestring):
901
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
902
if revision.startswith(prefix):
903
result = func(self, revs, revision)
905
revno, rev_id = result
908
rev_id = self.get_rev_id(revno, revs)
911
raise BzrError('No namespace registered for string: %r' %
914
raise TypeError('Unhandled revision type %s' % revision)
918
raise bzrlib.errors.NoSuchRevision(self, revision)
921
def _namespace_revno(self, revs, revision):
922
"""Lookup a revision by revision number"""
923
assert revision.startswith('revno:')
925
return (int(revision[6:]),)
928
REVISION_NAMESPACES['revno:'] = _namespace_revno
930
def _namespace_revid(self, revs, revision):
931
assert revision.startswith('revid:')
932
rev_id = revision[len('revid:'):]
934
return revs.index(rev_id) + 1, rev_id
937
REVISION_NAMESPACES['revid:'] = _namespace_revid
939
def _namespace_last(self, revs, revision):
940
assert revision.startswith('last:')
942
offset = int(revision[5:])
947
raise BzrError('You must supply a positive value for --revision last:XXX')
948
return (len(revs) - offset + 1,)
949
REVISION_NAMESPACES['last:'] = _namespace_last
951
def _namespace_tag(self, revs, revision):
952
assert revision.startswith('tag:')
953
raise BzrError('tag: namespace registered, but not implemented.')
954
REVISION_NAMESPACES['tag:'] = _namespace_tag
956
def _namespace_date(self, revs, revision):
957
assert revision.startswith('date:')
959
# Spec for date revisions:
961
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
962
# it can also start with a '+/-/='. '+' says match the first
963
# entry after the given date. '-' is match the first entry before the date
964
# '=' is match the first entry after, but still on the given date.
966
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
967
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
968
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
969
# May 13th, 2005 at 0:00
971
# So the proper way of saying 'give me all entries for today' is:
972
# -r {date:+today}:{date:-tomorrow}
973
# The default is '=' when not supplied
976
if val[:1] in ('+', '-', '='):
977
match_style = val[:1]
980
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
981
if val.lower() == 'yesterday':
982
dt = today - datetime.timedelta(days=1)
983
elif val.lower() == 'today':
985
elif val.lower() == 'tomorrow':
986
dt = today + datetime.timedelta(days=1)
989
# This should be done outside the function to avoid recompiling it.
990
_date_re = re.compile(
991
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
993
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
995
m = _date_re.match(val)
996
if not m or (not m.group('date') and not m.group('time')):
997
raise BzrError('Invalid revision date %r' % revision)
1000
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1002
year, month, day = today.year, today.month, today.day
1004
hour = int(m.group('hour'))
1005
minute = int(m.group('minute'))
1006
if m.group('second'):
1007
second = int(m.group('second'))
1011
hour, minute, second = 0,0,0
1013
dt = datetime.datetime(year=year, month=month, day=day,
1014
hour=hour, minute=minute, second=second)
1018
if match_style == '-':
1020
elif match_style == '=':
1021
last = dt + datetime.timedelta(days=1)
1024
for i in range(len(revs)-1, -1, -1):
1025
r = self.get_revision(revs[i])
1026
# TODO: Handle timezone.
1027
dt = datetime.datetime.fromtimestamp(r.timestamp)
1028
if first >= dt and (last is None or dt >= last):
1031
for i in range(len(revs)):
1032
r = self.get_revision(revs[i])
1033
# TODO: Handle timezone.
1034
dt = datetime.datetime.fromtimestamp(r.timestamp)
1035
if first <= dt and (last is None or dt <= last):
1037
REVISION_NAMESPACES['date:'] = _namespace_date
1039
def revision_tree(self, revision_id):
1040
"""Return Tree for a revision on this branch.
1042
`revision_id` may be None for the null revision, in which case
1043
an `EmptyTree` is returned."""
1044
# TODO: refactor this to use an existing revision object
1045
# so we don't need to read it in twice.
1046
if revision_id == None:
1049
inv = self.get_revision_inventory(revision_id)
1050
return RevisionTree(self.weave_store, inv, revision_id)
1053
def working_tree(self):
1054
"""Return a `Tree` for the working copy."""
1055
from workingtree import WorkingTree
1056
return WorkingTree(self.base, self.read_working_inventory())
1059
def basis_tree(self):
1060
"""Return `Tree` object for last revision.
1062
If there are no revisions yet, return an `EmptyTree`.
1064
return self.revision_tree(self.last_patch())
1067
def rename_one(self, from_rel, to_rel):
1070
This can change the directory or the filename or both.
1074
tree = self.working_tree()
1075
inv = tree.inventory
1076
if not tree.has_filename(from_rel):
1077
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1078
if tree.has_filename(to_rel):
1079
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1081
file_id = inv.path2id(from_rel)
1083
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1085
if inv.path2id(to_rel):
1086
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1088
to_dir, to_tail = os.path.split(to_rel)
1089
to_dir_id = inv.path2id(to_dir)
1090
if to_dir_id == None and to_dir != '':
1091
raise BzrError("can't determine destination directory id for %r" % to_dir)
1093
mutter("rename_one:")
1094
mutter(" file_id {%s}" % file_id)
1095
mutter(" from_rel %r" % from_rel)
1096
mutter(" to_rel %r" % to_rel)
1097
mutter(" to_dir %r" % to_dir)
1098
mutter(" to_dir_id {%s}" % to_dir_id)
1100
inv.rename(file_id, to_dir_id, to_tail)
1102
from_abs = self.abspath(from_rel)
1103
to_abs = self.abspath(to_rel)
1105
os.rename(from_abs, to_abs)
1107
raise BzrError("failed to rename %r to %r: %s"
1108
% (from_abs, to_abs, e[1]),
1109
["rename rolled back"])
1111
self._write_inventory(inv)
1116
def move(self, from_paths, to_name):
1119
to_name must exist as a versioned directory.
1121
If to_name exists and is a directory, the files are moved into
1122
it, keeping their old names. If it is a directory,
1124
Note that to_name is only the last component of the new name;
1125
this doesn't change the directory.
1127
This returns a list of (from_path, to_path) pairs for each
1128
entry that is moved.
1133
## TODO: Option to move IDs only
1134
assert not isinstance(from_paths, basestring)
1135
tree = self.working_tree()
1136
inv = tree.inventory
1137
to_abs = self.abspath(to_name)
1138
if not isdir(to_abs):
1139
raise BzrError("destination %r is not a directory" % to_abs)
1140
if not tree.has_filename(to_name):
1141
raise BzrError("destination %r not in working directory" % to_abs)
1142
to_dir_id = inv.path2id(to_name)
1143
if to_dir_id == None and to_name != '':
1144
raise BzrError("destination %r is not a versioned directory" % to_name)
1145
to_dir_ie = inv[to_dir_id]
1146
if to_dir_ie.kind not in ('directory', 'root_directory'):
1147
raise BzrError("destination %r is not a directory" % to_abs)
1149
to_idpath = inv.get_idpath(to_dir_id)
1151
for f in from_paths:
1152
if not tree.has_filename(f):
1153
raise BzrError("%r does not exist in working tree" % f)
1154
f_id = inv.path2id(f)
1156
raise BzrError("%r is not versioned" % f)
1157
name_tail = splitpath(f)[-1]
1158
dest_path = appendpath(to_name, name_tail)
1159
if tree.has_filename(dest_path):
1160
raise BzrError("destination %r already exists" % dest_path)
1161
if f_id in to_idpath:
1162
raise BzrError("can't move %r to a subdirectory of itself" % f)
1164
# OK, so there's a race here, it's possible that someone will
1165
# create a file in this interval and then the rename might be
1166
# left half-done. But we should have caught most problems.
1168
for f in from_paths:
1169
name_tail = splitpath(f)[-1]
1170
dest_path = appendpath(to_name, name_tail)
1171
result.append((f, dest_path))
1172
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1174
os.rename(self.abspath(f), self.abspath(dest_path))
1176
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1177
["rename rolled back"])
1179
self._write_inventory(inv)
1186
def revert(self, filenames, old_tree=None, backups=True):
1187
"""Restore selected files to the versions from a previous tree.
1190
If true (default) backups are made of files before
1193
from bzrlib.errors import NotVersionedError, BzrError
1194
from bzrlib.atomicfile import AtomicFile
1195
from bzrlib.osutils import backup_file
1197
inv = self.read_working_inventory()
1198
if old_tree is None:
1199
old_tree = self.basis_tree()
1200
old_inv = old_tree.inventory
1203
for fn in filenames:
1204
file_id = inv.path2id(fn)
1206
raise NotVersionedError("not a versioned file", fn)
1207
if not old_inv.has_id(file_id):
1208
raise BzrError("file not present in old tree", fn, file_id)
1209
nids.append((fn, file_id))
1211
# TODO: Rename back if it was previously at a different location
1213
# TODO: If given a directory, restore the entire contents from
1214
# the previous version.
1216
# TODO: Make a backup to a temporary file.
1218
# TODO: If the file previously didn't exist, delete it?
1219
for fn, file_id in nids:
1222
f = AtomicFile(fn, 'wb')
1224
f.write(old_tree.get_file(file_id).read())
1230
def pending_merges(self):
1231
"""Return a list of pending merges.
1233
These are revisions that have been merged into the working
1234
directory but not yet committed.
1236
cfn = self.controlfilename('pending-merges')
1237
if not os.path.exists(cfn):
1240
for l in self.controlfile('pending-merges', 'r').readlines():
1241
p.append(l.rstrip('\n'))
1245
def add_pending_merge(self, revision_id):
1246
from bzrlib.revision import validate_revision_id
1248
validate_revision_id(revision_id)
1250
p = self.pending_merges()
1251
if revision_id in p:
1253
p.append(revision_id)
1254
self.set_pending_merges(p)
1257
def set_pending_merges(self, rev_list):
1258
from bzrlib.atomicfile import AtomicFile
1261
f = AtomicFile(self.controlfilename('pending-merges'))
1272
def get_parent(self):
1273
"""Return the parent location of the branch.
1275
This is the default location for push/pull/missing. The usual
1276
pattern is that the user can override it by specifying a
1280
_locs = ['parent', 'pull', 'x-pull']
1283
return self.controlfile(l, 'r').read().strip('\n')
1285
if e.errno != errno.ENOENT:
1290
def set_parent(self, url):
1291
# TODO: Maybe delete old location files?
1292
from bzrlib.atomicfile import AtomicFile
1295
f = AtomicFile(self.controlfilename('parent'))
1304
def check_revno(self, revno):
1306
Check whether a revno corresponds to any revision.
1307
Zero (the NULL revision) is considered valid.
1310
self.check_real_revno(revno)
1312
def check_real_revno(self, revno):
1314
Check whether a revno corresponds to a real revision.
1315
Zero (the NULL revision) is considered invalid
1317
if revno < 1 or revno > self.revno():
1318
raise InvalidRevisionNumber(revno)
1323
class ScratchBranch(Branch):
1324
"""Special test class: a branch that cleans up after itself.
1326
>>> b = ScratchBranch()
1334
def __init__(self, files=[], dirs=[], base=None):
1335
"""Make a test branch.
1337
This creates a temporary directory and runs init-tree in it.
1339
If any files are listed, they are created in the working copy.
1341
from tempfile import mkdtemp
1346
Branch.__init__(self, base, init=init)
1348
os.mkdir(self.abspath(d))
1351
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1356
>>> orig = ScratchBranch(files=["file1", "file2"])
1357
>>> clone = orig.clone()
1358
>>> os.path.samefile(orig.base, clone.base)
1360
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1363
from shutil import copytree
1364
from tempfile import mkdtemp
1367
copytree(self.base, base, symlinks=True)
1368
return ScratchBranch(base=base)
1376
"""Destroy the test branch, removing the scratch directory."""
1377
from shutil import rmtree
1380
mutter("delete ScratchBranch %s" % self.base)
1383
# Work around for shutil.rmtree failing on Windows when
1384
# readonly files are encountered
1385
mutter("hit exception in destroying ScratchBranch: %s" % e)
1386
for root, dirs, files in os.walk(self.base, topdown=False):
1388
os.chmod(os.path.join(root, name), 0700)
1394
######################################################################
1398
def is_control_file(filename):
1399
## FIXME: better check
1400
filename = os.path.normpath(filename)
1401
while filename != '':
1402
head, tail = os.path.split(filename)
1403
## mutter('check %r for control file' % ((head, tail), ))
1404
if tail == bzrlib.BZRDIR:
1406
if filename == head:
1413
def gen_file_id(name):
1414
"""Return new file id.
1416
This should probably generate proper UUIDs, but for the moment we
1417
cope with just randomness because running uuidgen every time is
1420
from binascii import hexlify
1421
from time import time
1423
# get last component
1424
idx = name.rfind('/')
1426
name = name[idx+1 : ]
1427
idx = name.rfind('\\')
1429
name = name[idx+1 : ]
1431
# make it not a hidden file
1432
name = name.lstrip('.')
1434
# remove any wierd characters; we don't escape them but rather
1435
# just pull them out
1436
name = re.sub(r'[^\w.]', '', name)
1438
s = hexlify(rand_bytes(8))
1439
return '-'.join((name, compact_date(time()), s))
1443
"""Return a new tree-root file id."""
1444
return gen_file_id('TREE_ROOT')
1447
def pull_loc(branch):
1448
# TODO: Should perhaps just make attribute be 'base' in
1449
# RemoteBranch and Branch?
1450
if hasattr(branch, "baseurl"):
1451
return branch.baseurl
1456
def copy_branch(branch_from, to_location, revision=None):
1457
"""Copy branch_from into the existing directory to_location.
1460
If not None, only revisions up to this point will be copied.
1461
The head of the new branch will be that revision.
1464
The name of a local directory that exists but is empty.
1466
from bzrlib.merge import merge
1467
from bzrlib.branch import Branch
1469
assert isinstance(branch_from, Branch)
1470
assert isinstance(to_location, basestring)
1472
br_to = Branch(to_location, init=True)
1473
br_to.set_root_id(branch_from.get_root_id())
1474
if revision is None:
1475
revno = branch_from.revno()
1477
revno, rev_id = branch_from.get_revision_info(revision)
1478
br_to.update_revisions(branch_from, stop_revision=revno)
1479
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1480
check_clean=False, ignore_zero=True)
1482
from_location = pull_loc(branch_from)
1483
br_to.set_parent(pull_loc(branch_from))