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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 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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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.
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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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# 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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self.inventory_store = ImmutableStore(self.controlfilename('inventory-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', 'inventory-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(self, revision_id):
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"""Get Inventory object by hash.
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TODO: Perhaps for this and similar methods, take a revision
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parameter which can be either an integer revno or a
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f = self.get_inventory_xml_file(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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return self.inventory_store[revision_id]
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raise bzrlib.errors.HistoryMissing(self, 'inventory', revision_id)
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get_inventory_xml_file = get_inventory_xml
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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 sha_file(self.get_inventory_xml_file(revision_id))
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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", verbose=False)
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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", verbose=False)
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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"""
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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.
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revision can be an integer, in which case it is assumed to be revno (though
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this will translate negative values into positive ones)
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revision can also be a string, in which case it is parsed for something like
852
'date:' or 'revid:' etc.
854
revno, rev_id = self._get_revision_info(revision)
856
raise bzrlib.errors.NoSuchRevision(self, revision)
859
def get_rev_id(self, revno, history=None):
860
"""Find the revision id of the specified revno."""
864
history = self.revision_history()
865
elif revno <= 0 or revno > len(history):
866
raise bzrlib.errors.NoSuchRevision(self, revno)
867
return history[revno - 1]
869
def _get_revision_info(self, revision):
870
"""Return (revno, revision id) for revision specifier.
872
revision can be an integer, in which case it is assumed to be revno
873
(though this will translate negative values into positive ones)
874
revision can also be a string, in which case it is parsed for something
875
like 'date:' or 'revid:' etc.
877
A revid is always returned. If it is None, the specifier referred to
878
the null revision. If the revid does not occur in the revision
879
history, revno will be None.
885
try:# Convert to int if possible
886
revision = int(revision)
889
revs = self.revision_history()
890
if isinstance(revision, int):
892
revno = len(revs) + revision + 1
895
rev_id = self.get_rev_id(revno, revs)
896
elif isinstance(revision, basestring):
897
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
898
if revision.startswith(prefix):
899
result = func(self, revs, revision)
901
revno, rev_id = result
904
rev_id = self.get_rev_id(revno, revs)
907
raise BzrError('No namespace registered for string: %r' %
910
raise TypeError('Unhandled revision type %s' % revision)
914
raise bzrlib.errors.NoSuchRevision(self, revision)
917
def _namespace_revno(self, revs, revision):
918
"""Lookup a revision by revision number"""
919
assert revision.startswith('revno:')
921
return (int(revision[6:]),)
924
REVISION_NAMESPACES['revno:'] = _namespace_revno
926
def _namespace_revid(self, revs, revision):
927
assert revision.startswith('revid:')
928
rev_id = revision[len('revid:'):]
930
return revs.index(rev_id) + 1, rev_id
933
REVISION_NAMESPACES['revid:'] = _namespace_revid
935
def _namespace_last(self, revs, revision):
936
assert revision.startswith('last:')
938
offset = int(revision[5:])
943
raise BzrError('You must supply a positive value for --revision last:XXX')
944
return (len(revs) - offset + 1,)
945
REVISION_NAMESPACES['last:'] = _namespace_last
947
def _namespace_tag(self, revs, revision):
948
assert revision.startswith('tag:')
949
raise BzrError('tag: namespace registered, but not implemented.')
950
REVISION_NAMESPACES['tag:'] = _namespace_tag
952
def _namespace_date(self, revs, revision):
953
assert revision.startswith('date:')
955
# Spec for date revisions:
957
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
958
# it can also start with a '+/-/='. '+' says match the first
959
# entry after the given date. '-' is match the first entry before the date
960
# '=' is match the first entry after, but still on the given date.
962
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
963
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
964
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
965
# May 13th, 2005 at 0:00
967
# So the proper way of saying 'give me all entries for today' is:
968
# -r {date:+today}:{date:-tomorrow}
969
# The default is '=' when not supplied
972
if val[:1] in ('+', '-', '='):
973
match_style = val[:1]
976
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
977
if val.lower() == 'yesterday':
978
dt = today - datetime.timedelta(days=1)
979
elif val.lower() == 'today':
981
elif val.lower() == 'tomorrow':
982
dt = today + datetime.timedelta(days=1)
985
# This should be done outside the function to avoid recompiling it.
986
_date_re = re.compile(
987
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
989
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
991
m = _date_re.match(val)
992
if not m or (not m.group('date') and not m.group('time')):
993
raise BzrError('Invalid revision date %r' % revision)
996
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
998
year, month, day = today.year, today.month, today.day
1000
hour = int(m.group('hour'))
1001
minute = int(m.group('minute'))
1002
if m.group('second'):
1003
second = int(m.group('second'))
1007
hour, minute, second = 0,0,0
1009
dt = datetime.datetime(year=year, month=month, day=day,
1010
hour=hour, minute=minute, second=second)
1014
if match_style == '-':
1016
elif match_style == '=':
1017
last = dt + datetime.timedelta(days=1)
1020
for i in range(len(revs)-1, -1, -1):
1021
r = self.get_revision(revs[i])
1022
# TODO: Handle timezone.
1023
dt = datetime.datetime.fromtimestamp(r.timestamp)
1024
if first >= dt and (last is None or dt >= last):
1027
for i in range(len(revs)):
1028
r = self.get_revision(revs[i])
1029
# TODO: Handle timezone.
1030
dt = datetime.datetime.fromtimestamp(r.timestamp)
1031
if first <= dt and (last is None or dt <= last):
1033
REVISION_NAMESPACES['date:'] = _namespace_date
1035
def revision_tree(self, revision_id):
1036
"""Return Tree for a revision on this branch.
1038
`revision_id` may be None for the null revision, in which case
1039
an `EmptyTree` is returned."""
1040
# TODO: refactor this to use an existing revision object
1041
# so we don't need to read it in twice.
1042
if revision_id == None:
1045
inv = self.get_revision_inventory(revision_id)
1046
return RevisionTree(self.weave_store, inv, revision_id)
1049
def working_tree(self):
1050
"""Return a `Tree` for the working copy."""
1051
from workingtree import WorkingTree
1052
return WorkingTree(self.base, self.read_working_inventory())
1055
def basis_tree(self):
1056
"""Return `Tree` object for last revision.
1058
If there are no revisions yet, return an `EmptyTree`.
1060
return self.revision_tree(self.last_patch())
1063
def rename_one(self, from_rel, to_rel):
1066
This can change the directory or the filename or both.
1070
tree = self.working_tree()
1071
inv = tree.inventory
1072
if not tree.has_filename(from_rel):
1073
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1074
if tree.has_filename(to_rel):
1075
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1077
file_id = inv.path2id(from_rel)
1079
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1081
if inv.path2id(to_rel):
1082
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1084
to_dir, to_tail = os.path.split(to_rel)
1085
to_dir_id = inv.path2id(to_dir)
1086
if to_dir_id == None and to_dir != '':
1087
raise BzrError("can't determine destination directory id for %r" % to_dir)
1089
mutter("rename_one:")
1090
mutter(" file_id {%s}" % file_id)
1091
mutter(" from_rel %r" % from_rel)
1092
mutter(" to_rel %r" % to_rel)
1093
mutter(" to_dir %r" % to_dir)
1094
mutter(" to_dir_id {%s}" % to_dir_id)
1096
inv.rename(file_id, to_dir_id, to_tail)
1098
from_abs = self.abspath(from_rel)
1099
to_abs = self.abspath(to_rel)
1101
os.rename(from_abs, to_abs)
1103
raise BzrError("failed to rename %r to %r: %s"
1104
% (from_abs, to_abs, e[1]),
1105
["rename rolled back"])
1107
self._write_inventory(inv)
1112
def move(self, from_paths, to_name):
1115
to_name must exist as a versioned directory.
1117
If to_name exists and is a directory, the files are moved into
1118
it, keeping their old names. If it is a directory,
1120
Note that to_name is only the last component of the new name;
1121
this doesn't change the directory.
1123
This returns a list of (from_path, to_path) pairs for each
1124
entry that is moved.
1129
## TODO: Option to move IDs only
1130
assert not isinstance(from_paths, basestring)
1131
tree = self.working_tree()
1132
inv = tree.inventory
1133
to_abs = self.abspath(to_name)
1134
if not isdir(to_abs):
1135
raise BzrError("destination %r is not a directory" % to_abs)
1136
if not tree.has_filename(to_name):
1137
raise BzrError("destination %r not in working directory" % to_abs)
1138
to_dir_id = inv.path2id(to_name)
1139
if to_dir_id == None and to_name != '':
1140
raise BzrError("destination %r is not a versioned directory" % to_name)
1141
to_dir_ie = inv[to_dir_id]
1142
if to_dir_ie.kind not in ('directory', 'root_directory'):
1143
raise BzrError("destination %r is not a directory" % to_abs)
1145
to_idpath = inv.get_idpath(to_dir_id)
1147
for f in from_paths:
1148
if not tree.has_filename(f):
1149
raise BzrError("%r does not exist in working tree" % f)
1150
f_id = inv.path2id(f)
1152
raise BzrError("%r is not versioned" % f)
1153
name_tail = splitpath(f)[-1]
1154
dest_path = appendpath(to_name, name_tail)
1155
if tree.has_filename(dest_path):
1156
raise BzrError("destination %r already exists" % dest_path)
1157
if f_id in to_idpath:
1158
raise BzrError("can't move %r to a subdirectory of itself" % f)
1160
# OK, so there's a race here, it's possible that someone will
1161
# create a file in this interval and then the rename might be
1162
# left half-done. But we should have caught most problems.
1164
for f in from_paths:
1165
name_tail = splitpath(f)[-1]
1166
dest_path = appendpath(to_name, name_tail)
1167
result.append((f, dest_path))
1168
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1170
os.rename(self.abspath(f), self.abspath(dest_path))
1172
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1173
["rename rolled back"])
1175
self._write_inventory(inv)
1182
def revert(self, filenames, old_tree=None, backups=True):
1183
"""Restore selected files to the versions from a previous tree.
1186
If true (default) backups are made of files before
1189
from bzrlib.errors import NotVersionedError, BzrError
1190
from bzrlib.atomicfile import AtomicFile
1191
from bzrlib.osutils import backup_file
1193
inv = self.read_working_inventory()
1194
if old_tree is None:
1195
old_tree = self.basis_tree()
1196
old_inv = old_tree.inventory
1199
for fn in filenames:
1200
file_id = inv.path2id(fn)
1202
raise NotVersionedError("not a versioned file", fn)
1203
if not old_inv.has_id(file_id):
1204
raise BzrError("file not present in old tree", fn, file_id)
1205
nids.append((fn, file_id))
1207
# TODO: Rename back if it was previously at a different location
1209
# TODO: If given a directory, restore the entire contents from
1210
# the previous version.
1212
# TODO: Make a backup to a temporary file.
1214
# TODO: If the file previously didn't exist, delete it?
1215
for fn, file_id in nids:
1218
f = AtomicFile(fn, 'wb')
1220
f.write(old_tree.get_file(file_id).read())
1226
def pending_merges(self):
1227
"""Return a list of pending merges.
1229
These are revisions that have been merged into the working
1230
directory but not yet committed.
1232
cfn = self.controlfilename('pending-merges')
1233
if not os.path.exists(cfn):
1236
for l in self.controlfile('pending-merges', 'r').readlines():
1237
p.append(l.rstrip('\n'))
1241
def add_pending_merge(self, revision_id):
1242
from bzrlib.revision import validate_revision_id
1244
validate_revision_id(revision_id)
1246
p = self.pending_merges()
1247
if revision_id in p:
1249
p.append(revision_id)
1250
self.set_pending_merges(p)
1253
def set_pending_merges(self, rev_list):
1254
from bzrlib.atomicfile import AtomicFile
1257
f = AtomicFile(self.controlfilename('pending-merges'))
1268
def get_parent(self):
1269
"""Return the parent location of the branch.
1271
This is the default location for push/pull/missing. The usual
1272
pattern is that the user can override it by specifying a
1276
_locs = ['parent', 'pull', 'x-pull']
1279
return self.controlfile(l, 'r').read().strip('\n')
1281
if e.errno != errno.ENOENT:
1286
def set_parent(self, url):
1287
# TODO: Maybe delete old location files?
1288
from bzrlib.atomicfile import AtomicFile
1291
f = AtomicFile(self.controlfilename('parent'))
1300
def check_revno(self, revno):
1302
Check whether a revno corresponds to any revision.
1303
Zero (the NULL revision) is considered valid.
1306
self.check_real_revno(revno)
1308
def check_real_revno(self, revno):
1310
Check whether a revno corresponds to a real revision.
1311
Zero (the NULL revision) is considered invalid
1313
if revno < 1 or revno > self.revno():
1314
raise InvalidRevisionNumber(revno)
1319
class ScratchBranch(Branch):
1320
"""Special test class: a branch that cleans up after itself.
1322
>>> b = ScratchBranch()
1330
def __init__(self, files=[], dirs=[], base=None):
1331
"""Make a test branch.
1333
This creates a temporary directory and runs init-tree in it.
1335
If any files are listed, they are created in the working copy.
1337
from tempfile import mkdtemp
1342
Branch.__init__(self, base, init=init)
1344
os.mkdir(self.abspath(d))
1347
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1352
>>> orig = ScratchBranch(files=["file1", "file2"])
1353
>>> clone = orig.clone()
1354
>>> os.path.samefile(orig.base, clone.base)
1356
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1359
from shutil import copytree
1360
from tempfile import mkdtemp
1363
copytree(self.base, base, symlinks=True)
1364
return ScratchBranch(base=base)
1372
"""Destroy the test branch, removing the scratch directory."""
1373
from shutil import rmtree
1376
mutter("delete ScratchBranch %s" % self.base)
1379
# Work around for shutil.rmtree failing on Windows when
1380
# readonly files are encountered
1381
mutter("hit exception in destroying ScratchBranch: %s" % e)
1382
for root, dirs, files in os.walk(self.base, topdown=False):
1384
os.chmod(os.path.join(root, name), 0700)
1390
######################################################################
1394
def is_control_file(filename):
1395
## FIXME: better check
1396
filename = os.path.normpath(filename)
1397
while filename != '':
1398
head, tail = os.path.split(filename)
1399
## mutter('check %r for control file' % ((head, tail), ))
1400
if tail == bzrlib.BZRDIR:
1402
if filename == head:
1409
def gen_file_id(name):
1410
"""Return new file id.
1412
This should probably generate proper UUIDs, but for the moment we
1413
cope with just randomness because running uuidgen every time is
1416
from binascii import hexlify
1417
from time import time
1419
# get last component
1420
idx = name.rfind('/')
1422
name = name[idx+1 : ]
1423
idx = name.rfind('\\')
1425
name = name[idx+1 : ]
1427
# make it not a hidden file
1428
name = name.lstrip('.')
1430
# remove any wierd characters; we don't escape them but rather
1431
# just pull them out
1432
name = re.sub(r'[^\w.]', '', name)
1434
s = hexlify(rand_bytes(8))
1435
return '-'.join((name, compact_date(time()), s))
1439
"""Return a new tree-root file id."""
1440
return gen_file_id('TREE_ROOT')
1443
def pull_loc(branch):
1444
# TODO: Should perhaps just make attribute be 'base' in
1445
# RemoteBranch and Branch?
1446
if hasattr(branch, "baseurl"):
1447
return branch.baseurl
1452
def copy_branch(branch_from, to_location, revision=None):
1453
"""Copy branch_from into the existing directory to_location.
1456
If not None, only revisions up to this point will be copied.
1457
The head of the new branch will be that revision.
1460
The name of a local directory that exists but is empty.
1462
from bzrlib.merge import merge
1463
from bzrlib.branch import Branch
1465
assert isinstance(branch_from, Branch)
1466
assert isinstance(to_location, basestring)
1468
br_to = Branch(to_location, init=True)
1469
br_to.set_root_id(branch_from.get_root_id())
1470
if revision is None:
1471
revno = branch_from.revno()
1473
revno, rev_id = branch_from.get_revision_info(revision)
1474
br_to.update_revisions(branch_from, stop_revision=revno)
1475
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1476
check_clean=False, ignore_zero=True)
1478
from_location = pull_loc(branch_from)
1479
br_to.set_parent(pull_loc(branch_from))