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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.xml import unpack_xml
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from bzrlib.delta import compare_trees
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from bzrlib.tree import EmptyTree, RevisionTree
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BZR_BRANCH_FORMAT = "Bazaar-NG branch, format 0.0.4\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 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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f = bzrlib.osutils.normalizepath(f)
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if not bzrlib.osutils.lexists(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. May be a file:// url.
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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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if base.startswith("file://"):
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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.text_store = ImmutableStore(self.controlfilename('text-store'))
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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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from bzrlib.inventory import Inventory
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from bzrlib.xml import pack_xml
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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)
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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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pack_xml(Inventory(), self.controlfile('inventory','w'))
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def _check_format(self):
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"""Check this branch format is supported.
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The current tool only supports the current unstable format.
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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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# This ignores newlines so that we can open branches created
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# on Windows from Linux and so on. I think it might be better
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# to always make all internal files in unix format.
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fmt = self.controlfile('branch-format', 'r').read()
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fmt.replace('\r\n', '')
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if fmt != BZR_BRANCH_FORMAT:
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raise BzrError('sorry, branch format %r not supported' % fmt,
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['use a different bzr version',
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'or remove the .bzr directory and "bzr init" again'])
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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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from bzrlib.inventory import Inventory
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from bzrlib.xml import unpack_xml
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from time import time
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# ElementTree does its own conversion from UTF-8, so open in
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inv = unpack_xml(Inventory,
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self.controlfile('inventory', 'rb'))
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mutter("loaded inventory of %d items in %f"
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% (len(inv), time() - before))
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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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from bzrlib.xml import pack_xml
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f = AtomicFile(self.controlfilename('inventory'), 'wb')
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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, symlink or directory: %s' % quotefn(f))
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if kind not in ('file', 'directory', 'symlink'):
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raise BzrError('cannot add: not a regular file, symlink 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(self, revision_id):
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"""Return XML file object for revision object."""
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if not revision_id or not isinstance(revision_id, basestring):
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raise InvalidRevisionId(revision_id)
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return self.revision_store[revision_id]
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raise bzrlib.errors.NoSuchRevision(self, revision_id)
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def get_revision(self, revision_id):
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"""Return the Revision object for a named revision.
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This operates on the storage level - it is agnostic as to
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logical presence or absence from the branch.
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xml_file = self.get_revision_xml(revision_id)
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r = unpack_xml(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, inventory_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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from bzrlib.inventory import Inventory
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from bzrlib.xml import unpack_xml
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return unpack_xml(Inventory, self.get_inventory_xml(inventory_id))
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def get_inventory_xml(self, inventory_id):
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"""Get inventory XML as a file object."""
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return self.inventory_store[inventory_id]
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def get_inventory_sha1(self, inventory_id):
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"""Return the sha1 hash of the inventory entry
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return sha_file(self.get_inventory_xml(inventory_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 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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from bzrlib.inventory import Inventory
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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 install_revisions(self, other, revision_ids, pb):
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if hasattr(other.revision_store, "prefetch"):
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other.revision_store.prefetch(revision_ids)
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if hasattr(other.inventory_store, "prefetch"):
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inventory_ids = [other.get_revision(r).inventory_id
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for r in revision_ids]
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other.inventory_store.prefetch(inventory_ids)
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pb = bzrlib.ui.ui_factory.progress_bar()
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for i, rev_id in enumerate(revision_ids):
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pb.update('fetching revision', i+1, len(revision_ids))
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rev = other.get_revision(rev_id)
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except bzrlib.errors.NoSuchRevision:
836
revisions.append(rev)
837
inv = other.get_inventory(str(rev.inventory_id))
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for key, entry in inv.iter_entries():
839
if entry.text_id is None:
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if entry.text_id not in self.text_store:
842
needed_texts.add(entry.text_id)
846
count, cp_fail = self.text_store.copy_multi(other.text_store,
848
#print "Added %d texts." % count
849
inventory_ids = [ f.inventory_id for f in revisions ]
850
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
852
#print "Added %d inventories." % count
853
revision_ids = [ f.revision_id for f in revisions]
855
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
858
assert len(cp_fail) == 0
859
return count, failures
862
def commit(self, *args, **kw):
863
from bzrlib.commit import commit
864
commit(self, *args, **kw)
867
def lookup_revision(self, revision):
868
"""Return the revision identifier for a given revision information."""
869
revno, info = self._get_revision_info(revision)
873
def revision_id_to_revno(self, revision_id):
874
"""Given a revision id, return its revno"""
875
history = self.revision_history()
877
return history.index(revision_id) + 1
879
raise bzrlib.errors.NoSuchRevision(self, revision_id)
882
def get_revision_info(self, revision):
883
"""Return (revno, revision id) for revision identifier.
885
revision can be an integer, in which case it is assumed to be revno (though
886
this will translate negative values into positive ones)
887
revision can also be a string, in which case it is parsed for something like
888
'date:' or 'revid:' etc.
890
revno, rev_id = self._get_revision_info(revision)
892
raise bzrlib.errors.NoSuchRevision(self, revision)
895
def get_rev_id(self, revno, history=None):
896
"""Find the revision id of the specified revno."""
900
history = self.revision_history()
901
elif revno <= 0 or revno > len(history):
902
raise bzrlib.errors.NoSuchRevision(self, revno)
903
return history[revno - 1]
905
def _get_revision_info(self, revision):
906
"""Return (revno, revision id) for revision specifier.
908
revision can be an integer, in which case it is assumed to be revno
909
(though this will translate negative values into positive ones)
910
revision can also be a string, in which case it is parsed for something
911
like 'date:' or 'revid:' etc.
913
A revid is always returned. If it is None, the specifier referred to
914
the null revision. If the revid does not occur in the revision
915
history, revno will be None.
921
try:# Convert to int if possible
922
revision = int(revision)
925
revs = self.revision_history()
926
if isinstance(revision, int):
928
revno = len(revs) + revision + 1
931
rev_id = self.get_rev_id(revno, revs)
932
elif isinstance(revision, basestring):
933
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
934
if revision.startswith(prefix):
935
result = func(self, revs, revision)
937
revno, rev_id = result
940
rev_id = self.get_rev_id(revno, revs)
943
raise BzrError('No namespace registered for string: %r' %
946
raise TypeError('Unhandled revision type %s' % revision)
950
raise bzrlib.errors.NoSuchRevision(self, revision)
953
def _namespace_revno(self, revs, revision):
954
"""Lookup a revision by revision number"""
955
assert revision.startswith('revno:')
957
return (int(revision[6:]),)
960
REVISION_NAMESPACES['revno:'] = _namespace_revno
962
def _namespace_revid(self, revs, revision):
963
assert revision.startswith('revid:')
964
rev_id = revision[len('revid:'):]
966
return revs.index(rev_id) + 1, rev_id
969
REVISION_NAMESPACES['revid:'] = _namespace_revid
971
def _namespace_last(self, revs, revision):
972
assert revision.startswith('last:')
974
offset = int(revision[5:])
979
raise BzrError('You must supply a positive value for --revision last:XXX')
980
return (len(revs) - offset + 1,)
981
REVISION_NAMESPACES['last:'] = _namespace_last
983
def _namespace_tag(self, revs, revision):
984
assert revision.startswith('tag:')
985
raise BzrError('tag: namespace registered, but not implemented.')
986
REVISION_NAMESPACES['tag:'] = _namespace_tag
988
def _namespace_date(self, revs, revision):
989
assert revision.startswith('date:')
991
# Spec for date revisions:
993
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
994
# it can also start with a '+/-/='. '+' says match the first
995
# entry after the given date. '-' is match the first entry before the date
996
# '=' is match the first entry after, but still on the given date.
998
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
999
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1000
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1001
# May 13th, 2005 at 0:00
1003
# So the proper way of saying 'give me all entries for today' is:
1004
# -r {date:+today}:{date:-tomorrow}
1005
# The default is '=' when not supplied
1008
if val[:1] in ('+', '-', '='):
1009
match_style = val[:1]
1012
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1013
if val.lower() == 'yesterday':
1014
dt = today - datetime.timedelta(days=1)
1015
elif val.lower() == 'today':
1017
elif val.lower() == 'tomorrow':
1018
dt = today + datetime.timedelta(days=1)
1021
# This should be done outside the function to avoid recompiling it.
1022
_date_re = re.compile(
1023
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1025
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1027
m = _date_re.match(val)
1028
if not m or (not m.group('date') and not m.group('time')):
1029
raise BzrError('Invalid revision date %r' % revision)
1032
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1034
year, month, day = today.year, today.month, today.day
1036
hour = int(m.group('hour'))
1037
minute = int(m.group('minute'))
1038
if m.group('second'):
1039
second = int(m.group('second'))
1043
hour, minute, second = 0,0,0
1045
dt = datetime.datetime(year=year, month=month, day=day,
1046
hour=hour, minute=minute, second=second)
1050
if match_style == '-':
1052
elif match_style == '=':
1053
last = dt + datetime.timedelta(days=1)
1056
for i in range(len(revs)-1, -1, -1):
1057
r = self.get_revision(revs[i])
1058
# TODO: Handle timezone.
1059
dt = datetime.datetime.fromtimestamp(r.timestamp)
1060
if first >= dt and (last is None or dt >= last):
1063
for i in range(len(revs)):
1064
r = self.get_revision(revs[i])
1065
# TODO: Handle timezone.
1066
dt = datetime.datetime.fromtimestamp(r.timestamp)
1067
if first <= dt and (last is None or dt <= last):
1069
REVISION_NAMESPACES['date:'] = _namespace_date
1071
def revision_tree(self, revision_id):
1072
"""Return Tree for a revision on this branch.
1074
`revision_id` may be None for the null revision, in which case
1075
an `EmptyTree` is returned."""
1076
# TODO: refactor this to use an existing revision object
1077
# so we don't need to read it in twice.
1078
if revision_id == None:
1081
inv = self.get_revision_inventory(revision_id)
1082
return RevisionTree(self.text_store, inv)
1085
def working_tree(self):
1086
"""Return a `Tree` for the working copy."""
1087
from workingtree import WorkingTree
1088
return WorkingTree(self.base, self.read_working_inventory())
1091
def basis_tree(self):
1092
"""Return `Tree` object for last revision.
1094
If there are no revisions yet, return an `EmptyTree`.
1096
r = self.last_patch()
1100
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1104
def rename_one(self, from_rel, to_rel):
1107
This can change the directory or the filename or both.
1111
tree = self.working_tree()
1112
inv = tree.inventory
1113
if not tree.has_filename(from_rel):
1114
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1115
if tree.has_filename(to_rel):
1116
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1118
file_id = inv.path2id(from_rel)
1120
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1122
if inv.path2id(to_rel):
1123
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1125
to_dir, to_tail = os.path.split(to_rel)
1126
to_dir_id = inv.path2id(to_dir)
1127
if to_dir_id == None and to_dir != '':
1128
raise BzrError("can't determine destination directory id for %r" % to_dir)
1130
mutter("rename_one:")
1131
mutter(" file_id {%s}" % file_id)
1132
mutter(" from_rel %r" % from_rel)
1133
mutter(" to_rel %r" % to_rel)
1134
mutter(" to_dir %r" % to_dir)
1135
mutter(" to_dir_id {%s}" % to_dir_id)
1137
inv.rename(file_id, to_dir_id, to_tail)
1139
from_abs = self.abspath(from_rel)
1140
to_abs = self.abspath(to_rel)
1142
os.rename(from_abs, to_abs)
1144
raise BzrError("failed to rename %r to %r: %s"
1145
% (from_abs, to_abs, e[1]),
1146
["rename rolled back"])
1148
self._write_inventory(inv)
1153
def move(self, from_paths, to_name):
1156
to_name must exist as a versioned directory.
1158
If to_name exists and is a directory, the files are moved into
1159
it, keeping their old names. If it is a directory,
1161
Note that to_name is only the last component of the new name;
1162
this doesn't change the directory.
1164
This returns a list of (from_path, to_path) pairs for each
1165
entry that is moved.
1170
## TODO: Option to move IDs only
1171
assert not isinstance(from_paths, basestring)
1172
tree = self.working_tree()
1173
inv = tree.inventory
1174
to_abs = self.abspath(to_name)
1175
if not isdir(to_abs):
1176
raise BzrError("destination %r is not a directory" % to_abs)
1177
if not tree.has_filename(to_name):
1178
raise BzrError("destination %r not in working directory" % to_abs)
1179
to_dir_id = inv.path2id(to_name)
1180
if to_dir_id == None and to_name != '':
1181
raise BzrError("destination %r is not a versioned directory" % to_name)
1182
to_dir_ie = inv[to_dir_id]
1183
if to_dir_ie.kind not in ('directory', 'root_directory'):
1184
raise BzrError("destination %r is not a directory" % to_abs)
1186
to_idpath = inv.get_idpath(to_dir_id)
1188
for f in from_paths:
1189
if not tree.has_filename(f):
1190
raise BzrError("%r does not exist in working tree" % f)
1191
f_id = inv.path2id(f)
1193
raise BzrError("%r is not versioned" % f)
1194
name_tail = splitpath(f)[-1]
1195
dest_path = appendpath(to_name, name_tail)
1196
if tree.has_filename(dest_path):
1197
raise BzrError("destination %r already exists" % dest_path)
1198
if f_id in to_idpath:
1199
raise BzrError("can't move %r to a subdirectory of itself" % f)
1201
# OK, so there's a race here, it's possible that someone will
1202
# create a file in this interval and then the rename might be
1203
# left half-done. But we should have caught most problems.
1205
for f in from_paths:
1206
name_tail = splitpath(f)[-1]
1207
dest_path = appendpath(to_name, name_tail)
1208
result.append((f, dest_path))
1209
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1211
os.rename(self.abspath(f), self.abspath(dest_path))
1213
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1214
["rename rolled back"])
1216
self._write_inventory(inv)
1223
def revert(self, filenames, old_tree=None, backups=True):
1224
"""Restore selected files to the versions from a previous tree.
1227
If true (default) backups are made of files before
1230
from bzrlib.errors import NotVersionedError, BzrError
1231
from bzrlib.atomicfile import AtomicFile
1232
from bzrlib.osutils import backup_file
1234
inv = self.read_working_inventory()
1235
if old_tree is None:
1236
old_tree = self.basis_tree()
1237
old_inv = old_tree.inventory
1240
for fn in filenames:
1241
file_id = inv.path2id(fn)
1243
raise NotVersionedError("not a versioned file", fn)
1244
if not old_inv.has_id(file_id):
1245
raise BzrError("file not present in old tree", fn, file_id)
1246
nids.append((fn, file_id))
1248
# TODO: Rename back if it was previously at a different location
1250
# TODO: If given a directory, restore the entire contents from
1251
# the previous version.
1253
# TODO: Make a backup to a temporary file.
1255
# TODO: If the file previously didn't exist, delete it?
1256
for fn, file_id in nids:
1259
f = AtomicFile(fn, 'wb')
1261
f.write(old_tree.get_file(file_id).read())
1267
def pending_merges(self):
1268
"""Return a list of pending merges.
1270
These are revisions that have been merged into the working
1271
directory but not yet committed.
1273
cfn = self.controlfilename('pending-merges')
1274
if not os.path.exists(cfn):
1277
for l in self.controlfile('pending-merges', 'r').readlines():
1278
p.append(l.rstrip('\n'))
1282
def add_pending_merge(self, revision_id):
1283
from bzrlib.revision import validate_revision_id
1285
validate_revision_id(revision_id)
1287
p = self.pending_merges()
1288
if revision_id in p:
1290
p.append(revision_id)
1291
self.set_pending_merges(p)
1294
def set_pending_merges(self, rev_list):
1295
from bzrlib.atomicfile import AtomicFile
1298
f = AtomicFile(self.controlfilename('pending-merges'))
1309
def get_parent(self):
1310
"""Return the parent location of the branch.
1312
This is the default location for push/pull/missing. The usual
1313
pattern is that the user can override it by specifying a
1317
_locs = ['parent', 'pull', 'x-pull']
1320
return self.controlfile(l, 'r').read().strip('\n')
1322
if e.errno != errno.ENOENT:
1327
def set_parent(self, url):
1328
# TODO: Maybe delete old location files?
1329
from bzrlib.atomicfile import AtomicFile
1332
f = AtomicFile(self.controlfilename('parent'))
1341
def check_revno(self, revno):
1343
Check whether a revno corresponds to any revision.
1344
Zero (the NULL revision) is considered valid.
1347
self.check_real_revno(revno)
1349
def check_real_revno(self, revno):
1351
Check whether a revno corresponds to a real revision.
1352
Zero (the NULL revision) is considered invalid
1354
if revno < 1 or revno > self.revno():
1355
raise InvalidRevisionNumber(revno)
1360
class ScratchBranch(Branch):
1361
"""Special test class: a branch that cleans up after itself.
1363
>>> b = ScratchBranch()
1371
def __init__(self, files=[], dirs=[], base=None):
1372
"""Make a test branch.
1374
This creates a temporary directory and runs init-tree in it.
1376
If any files are listed, they are created in the working copy.
1378
from tempfile import mkdtemp
1383
Branch.__init__(self, base, init=init)
1385
os.mkdir(self.abspath(d))
1388
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1393
>>> orig = ScratchBranch(files=["file1", "file2"])
1394
>>> clone = orig.clone()
1395
>>> os.path.samefile(orig.base, clone.base)
1397
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1400
from shutil import copytree
1401
from tempfile import mkdtemp
1404
copytree(self.base, base, symlinks=True)
1405
return ScratchBranch(base=base)
1413
"""Destroy the test branch, removing the scratch directory."""
1414
from shutil import rmtree
1417
mutter("delete ScratchBranch %s" % self.base)
1420
# Work around for shutil.rmtree failing on Windows when
1421
# readonly files are encountered
1422
mutter("hit exception in destroying ScratchBranch: %s" % e)
1423
for root, dirs, files in os.walk(self.base, topdown=False):
1425
os.chmod(os.path.join(root, name), 0700)
1431
######################################################################
1435
def is_control_file(filename):
1436
## FIXME: better check
1437
filename = os.path.normpath(filename)
1438
while filename != '':
1439
head, tail = os.path.split(filename)
1440
## mutter('check %r for control file' % ((head, tail), ))
1441
if tail == bzrlib.BZRDIR:
1443
if filename == head:
1450
def gen_file_id(name):
1451
"""Return new file id.
1453
This should probably generate proper UUIDs, but for the moment we
1454
cope with just randomness because running uuidgen every time is
1457
from binascii import hexlify
1458
from time import time
1460
# get last component
1461
idx = name.rfind('/')
1463
name = name[idx+1 : ]
1464
idx = name.rfind('\\')
1466
name = name[idx+1 : ]
1468
# make it not a hidden file
1469
name = name.lstrip('.')
1471
# remove any wierd characters; we don't escape them but rather
1472
# just pull them out
1473
name = re.sub(r'[^\w.]', '', name)
1475
s = hexlify(rand_bytes(8))
1476
return '-'.join((name, compact_date(time()), s))
1480
"""Return a new tree-root file id."""
1481
return gen_file_id('TREE_ROOT')
1484
def pull_loc(branch):
1485
# TODO: Should perhaps just make attribute be 'base' in
1486
# RemoteBranch and Branch?
1487
if hasattr(branch, "baseurl"):
1488
return branch.baseurl
1493
def copy_branch(branch_from, to_location, revision=None):
1494
"""Copy branch_from into the existing directory to_location.
1497
If not None, only revisions up to this point will be copied.
1498
The head of the new branch will be that revision.
1501
The name of a local directory that exists but is empty.
1503
from bzrlib.merge import merge
1504
from bzrlib.branch import Branch
1506
assert isinstance(branch_from, Branch)
1507
assert isinstance(to_location, basestring)
1509
br_to = Branch(to_location, init=True)
1510
br_to.set_root_id(branch_from.get_root_id())
1511
if revision is None:
1512
revno = branch_from.revno()
1514
revno, rev_id = branch_from.get_revision_info(revision)
1515
br_to.update_revisions(branch_from, stop_revision=revno)
1516
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1517
check_clean=False, ignore_zero=True)
1519
from_location = pull_loc(branch_from)
1520
br_to.set_parent(pull_loc(branch_from))