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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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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 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.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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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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f = self.controlfile('inventory','w')
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bzrlib.xml.serializer_v4.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 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 = fmt.replace('\r\n', '\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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# 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.xml.serializer_v4.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.xml.serializer_v4.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.xml.serializer_v4.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, 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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f = self.get_inventory_xml_file(inventory_id)
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return bzrlib.xml.serializer_v4.read_inventory(f)
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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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get_inventory_xml_file = get_inventory_xml
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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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from bzrlib.revision import get_intervening_revisions
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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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except DivergedBranches, e:
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if stop_revision is None:
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end_revision = other.last_patch()
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revision_ids = get_intervening_revisions(self.last_patch(),
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assert self.last_patch() not in revision_ids
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except bzrlib.errors.NotAncestor:
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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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for rev_id in revision_ids:
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revision = other.get_revision(rev_id).inventory_id
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inventory_ids.append(revision)
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except bzrlib.errors.NoSuchRevision:
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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):
855
pb.update('fetching revision', i+1, len(revision_ids))
857
rev = other.get_revision(rev_id)
858
except bzrlib.errors.NoSuchRevision:
862
revisions.append(rev)
863
inv = other.get_inventory(str(rev.inventory_id))
864
for key, entry in inv.iter_entries():
865
if entry.text_id is None:
867
if entry.text_id not in self.text_store:
868
needed_texts.add(entry.text_id)
872
count, cp_fail = self.text_store.copy_multi(other.text_store,
874
#print "Added %d texts." % count
875
inventory_ids = [ f.inventory_id for f in revisions ]
876
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
878
#print "Added %d inventories." % count
879
revision_ids = [ f.revision_id for f in revisions]
881
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
884
assert len(cp_fail) == 0
885
return count, failures
888
def commit(self, *args, **kw):
889
from bzrlib.commit import commit
890
commit(self, *args, **kw)
893
def lookup_revision(self, revision):
894
"""Return the revision identifier for a given revision information."""
895
revno, info = self._get_revision_info(revision)
899
def revision_id_to_revno(self, revision_id):
900
"""Given a revision id, return its revno"""
901
history = self.revision_history()
903
return history.index(revision_id) + 1
905
raise bzrlib.errors.NoSuchRevision(self, revision_id)
908
def get_revision_info(self, revision):
909
"""Return (revno, revision id) for revision identifier.
911
revision can be an integer, in which case it is assumed to be revno (though
912
this will translate negative values into positive ones)
913
revision can also be a string, in which case it is parsed for something like
914
'date:' or 'revid:' etc.
916
revno, rev_id = self._get_revision_info(revision)
918
raise bzrlib.errors.NoSuchRevision(self, revision)
921
def get_rev_id(self, revno, history=None):
922
"""Find the revision id of the specified revno."""
926
history = self.revision_history()
927
elif revno <= 0 or revno > len(history):
928
raise bzrlib.errors.NoSuchRevision(self, revno)
929
return history[revno - 1]
931
def _get_revision_info(self, revision):
932
"""Return (revno, revision id) for revision specifier.
934
revision can be an integer, in which case it is assumed to be revno
935
(though this will translate negative values into positive ones)
936
revision can also be a string, in which case it is parsed for something
937
like 'date:' or 'revid:' etc.
939
A revid is always returned. If it is None, the specifier referred to
940
the null revision. If the revid does not occur in the revision
941
history, revno will be None.
947
try:# Convert to int if possible
948
revision = int(revision)
951
revs = self.revision_history()
952
if isinstance(revision, int):
954
revno = len(revs) + revision + 1
957
rev_id = self.get_rev_id(revno, revs)
958
elif isinstance(revision, basestring):
959
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
960
if revision.startswith(prefix):
961
result = func(self, revs, revision)
963
revno, rev_id = result
966
rev_id = self.get_rev_id(revno, revs)
969
raise BzrError('No namespace registered for string: %r' %
972
raise TypeError('Unhandled revision type %s' % revision)
976
raise bzrlib.errors.NoSuchRevision(self, revision)
979
def _namespace_revno(self, revs, revision):
980
"""Lookup a revision by revision number"""
981
assert revision.startswith('revno:')
983
return (int(revision[6:]),)
986
REVISION_NAMESPACES['revno:'] = _namespace_revno
988
def _namespace_revid(self, revs, revision):
989
assert revision.startswith('revid:')
990
rev_id = revision[len('revid:'):]
992
return revs.index(rev_id) + 1, rev_id
995
REVISION_NAMESPACES['revid:'] = _namespace_revid
997
def _namespace_last(self, revs, revision):
998
assert revision.startswith('last:')
1000
offset = int(revision[5:])
1005
raise BzrError('You must supply a positive value for --revision last:XXX')
1006
return (len(revs) - offset + 1,)
1007
REVISION_NAMESPACES['last:'] = _namespace_last
1009
def _namespace_tag(self, revs, revision):
1010
assert revision.startswith('tag:')
1011
raise BzrError('tag: namespace registered, but not implemented.')
1012
REVISION_NAMESPACES['tag:'] = _namespace_tag
1014
def _namespace_date(self, revs, revision):
1015
assert revision.startswith('date:')
1017
# Spec for date revisions:
1019
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1020
# it can also start with a '+/-/='. '+' says match the first
1021
# entry after the given date. '-' is match the first entry before the date
1022
# '=' is match the first entry after, but still on the given date.
1024
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1025
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1026
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1027
# May 13th, 2005 at 0:00
1029
# So the proper way of saying 'give me all entries for today' is:
1030
# -r {date:+today}:{date:-tomorrow}
1031
# The default is '=' when not supplied
1034
if val[:1] in ('+', '-', '='):
1035
match_style = val[:1]
1038
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1039
if val.lower() == 'yesterday':
1040
dt = today - datetime.timedelta(days=1)
1041
elif val.lower() == 'today':
1043
elif val.lower() == 'tomorrow':
1044
dt = today + datetime.timedelta(days=1)
1047
# This should be done outside the function to avoid recompiling it.
1048
_date_re = re.compile(
1049
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1051
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1053
m = _date_re.match(val)
1054
if not m or (not m.group('date') and not m.group('time')):
1055
raise BzrError('Invalid revision date %r' % revision)
1058
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1060
year, month, day = today.year, today.month, today.day
1062
hour = int(m.group('hour'))
1063
minute = int(m.group('minute'))
1064
if m.group('second'):
1065
second = int(m.group('second'))
1069
hour, minute, second = 0,0,0
1071
dt = datetime.datetime(year=year, month=month, day=day,
1072
hour=hour, minute=minute, second=second)
1076
if match_style == '-':
1078
elif match_style == '=':
1079
last = dt + datetime.timedelta(days=1)
1082
for i in range(len(revs)-1, -1, -1):
1083
r = self.get_revision(revs[i])
1084
# TODO: Handle timezone.
1085
dt = datetime.datetime.fromtimestamp(r.timestamp)
1086
if first >= dt and (last is None or dt >= last):
1089
for i in range(len(revs)):
1090
r = self.get_revision(revs[i])
1091
# TODO: Handle timezone.
1092
dt = datetime.datetime.fromtimestamp(r.timestamp)
1093
if first <= dt and (last is None or dt <= last):
1095
REVISION_NAMESPACES['date:'] = _namespace_date
1097
def revision_tree(self, revision_id):
1098
"""Return Tree for a revision on this branch.
1100
`revision_id` may be None for the null revision, in which case
1101
an `EmptyTree` is returned."""
1102
# TODO: refactor this to use an existing revision object
1103
# so we don't need to read it in twice.
1104
if revision_id == None:
1107
inv = self.get_revision_inventory(revision_id)
1108
return RevisionTree(self.text_store, inv)
1111
def working_tree(self):
1112
"""Return a `Tree` for the working copy."""
1113
from workingtree import WorkingTree
1114
return WorkingTree(self.base, self.read_working_inventory())
1117
def basis_tree(self):
1118
"""Return `Tree` object for last revision.
1120
If there are no revisions yet, return an `EmptyTree`.
1122
r = self.last_patch()
1126
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1130
def rename_one(self, from_rel, to_rel):
1133
This can change the directory or the filename or both.
1137
tree = self.working_tree()
1138
inv = tree.inventory
1139
if not tree.has_filename(from_rel):
1140
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1141
if tree.has_filename(to_rel):
1142
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1144
file_id = inv.path2id(from_rel)
1146
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1148
if inv.path2id(to_rel):
1149
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1151
to_dir, to_tail = os.path.split(to_rel)
1152
to_dir_id = inv.path2id(to_dir)
1153
if to_dir_id == None and to_dir != '':
1154
raise BzrError("can't determine destination directory id for %r" % to_dir)
1156
mutter("rename_one:")
1157
mutter(" file_id {%s}" % file_id)
1158
mutter(" from_rel %r" % from_rel)
1159
mutter(" to_rel %r" % to_rel)
1160
mutter(" to_dir %r" % to_dir)
1161
mutter(" to_dir_id {%s}" % to_dir_id)
1163
inv.rename(file_id, to_dir_id, to_tail)
1165
from_abs = self.abspath(from_rel)
1166
to_abs = self.abspath(to_rel)
1168
os.rename(from_abs, to_abs)
1170
raise BzrError("failed to rename %r to %r: %s"
1171
% (from_abs, to_abs, e[1]),
1172
["rename rolled back"])
1174
self._write_inventory(inv)
1179
def move(self, from_paths, to_name):
1182
to_name must exist as a versioned directory.
1184
If to_name exists and is a directory, the files are moved into
1185
it, keeping their old names. If it is a directory,
1187
Note that to_name is only the last component of the new name;
1188
this doesn't change the directory.
1190
This returns a list of (from_path, to_path) pairs for each
1191
entry that is moved.
1196
## TODO: Option to move IDs only
1197
assert not isinstance(from_paths, basestring)
1198
tree = self.working_tree()
1199
inv = tree.inventory
1200
to_abs = self.abspath(to_name)
1201
if not isdir(to_abs):
1202
raise BzrError("destination %r is not a directory" % to_abs)
1203
if not tree.has_filename(to_name):
1204
raise BzrError("destination %r not in working directory" % to_abs)
1205
to_dir_id = inv.path2id(to_name)
1206
if to_dir_id == None and to_name != '':
1207
raise BzrError("destination %r is not a versioned directory" % to_name)
1208
to_dir_ie = inv[to_dir_id]
1209
if to_dir_ie.kind not in ('directory', 'root_directory'):
1210
raise BzrError("destination %r is not a directory" % to_abs)
1212
to_idpath = inv.get_idpath(to_dir_id)
1214
for f in from_paths:
1215
if not tree.has_filename(f):
1216
raise BzrError("%r does not exist in working tree" % f)
1217
f_id = inv.path2id(f)
1219
raise BzrError("%r is not versioned" % f)
1220
name_tail = splitpath(f)[-1]
1221
dest_path = appendpath(to_name, name_tail)
1222
if tree.has_filename(dest_path):
1223
raise BzrError("destination %r already exists" % dest_path)
1224
if f_id in to_idpath:
1225
raise BzrError("can't move %r to a subdirectory of itself" % f)
1227
# OK, so there's a race here, it's possible that someone will
1228
# create a file in this interval and then the rename might be
1229
# left half-done. But we should have caught most problems.
1231
for f in from_paths:
1232
name_tail = splitpath(f)[-1]
1233
dest_path = appendpath(to_name, name_tail)
1234
result.append((f, dest_path))
1235
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1237
os.rename(self.abspath(f), self.abspath(dest_path))
1239
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1240
["rename rolled back"])
1242
self._write_inventory(inv)
1249
def revert(self, filenames, old_tree=None, backups=True):
1250
"""Restore selected files to the versions from a previous tree.
1253
If true (default) backups are made of files before
1256
from bzrlib.errors import NotVersionedError, BzrError
1257
from bzrlib.atomicfile import AtomicFile
1258
from bzrlib.osutils import backup_file
1260
inv = self.read_working_inventory()
1261
if old_tree is None:
1262
old_tree = self.basis_tree()
1263
old_inv = old_tree.inventory
1266
for fn in filenames:
1267
file_id = inv.path2id(fn)
1269
raise NotVersionedError("not a versioned file", fn)
1270
if not old_inv.has_id(file_id):
1271
raise BzrError("file not present in old tree", fn, file_id)
1272
nids.append((fn, file_id))
1274
# TODO: Rename back if it was previously at a different location
1276
# TODO: If given a directory, restore the entire contents from
1277
# the previous version.
1279
# TODO: Make a backup to a temporary file.
1281
# TODO: If the file previously didn't exist, delete it?
1282
for fn, file_id in nids:
1285
f = AtomicFile(fn, 'wb')
1287
f.write(old_tree.get_file(file_id).read())
1293
def pending_merges(self):
1294
"""Return a list of pending merges.
1296
These are revisions that have been merged into the working
1297
directory but not yet committed.
1299
cfn = self.controlfilename('pending-merges')
1300
if not os.path.exists(cfn):
1303
for l in self.controlfile('pending-merges', 'r').readlines():
1304
p.append(l.rstrip('\n'))
1308
def add_pending_merge(self, revision_id):
1309
from bzrlib.revision import validate_revision_id
1311
validate_revision_id(revision_id)
1313
p = self.pending_merges()
1314
if revision_id in p:
1316
p.append(revision_id)
1317
self.set_pending_merges(p)
1320
def set_pending_merges(self, rev_list):
1321
from bzrlib.atomicfile import AtomicFile
1324
f = AtomicFile(self.controlfilename('pending-merges'))
1335
def get_parent(self):
1336
"""Return the parent location of the branch.
1338
This is the default location for push/pull/missing. The usual
1339
pattern is that the user can override it by specifying a
1343
_locs = ['parent', 'pull', 'x-pull']
1346
return self.controlfile(l, 'r').read().strip('\n')
1348
if e.errno != errno.ENOENT:
1353
def set_parent(self, url):
1354
# TODO: Maybe delete old location files?
1355
from bzrlib.atomicfile import AtomicFile
1358
f = AtomicFile(self.controlfilename('parent'))
1367
def check_revno(self, revno):
1369
Check whether a revno corresponds to any revision.
1370
Zero (the NULL revision) is considered valid.
1373
self.check_real_revno(revno)
1375
def check_real_revno(self, revno):
1377
Check whether a revno corresponds to a real revision.
1378
Zero (the NULL revision) is considered invalid
1380
if revno < 1 or revno > self.revno():
1381
raise InvalidRevisionNumber(revno)
1386
class ScratchBranch(Branch):
1387
"""Special test class: a branch that cleans up after itself.
1389
>>> b = ScratchBranch()
1397
def __init__(self, files=[], dirs=[], base=None):
1398
"""Make a test branch.
1400
This creates a temporary directory and runs init-tree in it.
1402
If any files are listed, they are created in the working copy.
1404
from tempfile import mkdtemp
1409
Branch.__init__(self, base, init=init)
1411
os.mkdir(self.abspath(d))
1414
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1419
>>> orig = ScratchBranch(files=["file1", "file2"])
1420
>>> clone = orig.clone()
1421
>>> os.path.samefile(orig.base, clone.base)
1423
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1426
from shutil import copytree
1427
from tempfile import mkdtemp
1430
copytree(self.base, base, symlinks=True)
1431
return ScratchBranch(base=base)
1439
"""Destroy the test branch, removing the scratch directory."""
1440
from shutil import rmtree
1443
mutter("delete ScratchBranch %s" % self.base)
1446
# Work around for shutil.rmtree failing on Windows when
1447
# readonly files are encountered
1448
mutter("hit exception in destroying ScratchBranch: %s" % e)
1449
for root, dirs, files in os.walk(self.base, topdown=False):
1451
os.chmod(os.path.join(root, name), 0700)
1457
######################################################################
1461
def is_control_file(filename):
1462
## FIXME: better check
1463
filename = os.path.normpath(filename)
1464
while filename != '':
1465
head, tail = os.path.split(filename)
1466
## mutter('check %r for control file' % ((head, tail), ))
1467
if tail == bzrlib.BZRDIR:
1469
if filename == head:
1476
def gen_file_id(name):
1477
"""Return new file id.
1479
This should probably generate proper UUIDs, but for the moment we
1480
cope with just randomness because running uuidgen every time is
1483
from binascii import hexlify
1484
from time import time
1486
# get last component
1487
idx = name.rfind('/')
1489
name = name[idx+1 : ]
1490
idx = name.rfind('\\')
1492
name = name[idx+1 : ]
1494
# make it not a hidden file
1495
name = name.lstrip('.')
1497
# remove any wierd characters; we don't escape them but rather
1498
# just pull them out
1499
name = re.sub(r'[^\w.]', '', name)
1501
s = hexlify(rand_bytes(8))
1502
return '-'.join((name, compact_date(time()), s))
1506
"""Return a new tree-root file id."""
1507
return gen_file_id('TREE_ROOT')
1510
def pull_loc(branch):
1511
# TODO: Should perhaps just make attribute be 'base' in
1512
# RemoteBranch and Branch?
1513
if hasattr(branch, "baseurl"):
1514
return branch.baseurl
1519
def copy_branch(branch_from, to_location, revision=None):
1520
"""Copy branch_from into the existing directory to_location.
1523
If not None, only revisions up to this point will be copied.
1524
The head of the new branch will be that revision.
1527
The name of a local directory that exists but is empty.
1529
from bzrlib.merge import merge
1530
from bzrlib.branch import Branch
1532
assert isinstance(branch_from, Branch)
1533
assert isinstance(to_location, basestring)
1535
br_to = Branch(to_location, init=True)
1536
br_to.set_root_id(branch_from.get_root_id())
1537
if revision is None:
1538
revno = branch_from.revno()
1540
revno, rev_id = branch_from.get_revision_info(revision)
1541
br_to.update_revisions(branch_from, stop_revision=revno)
1542
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1543
check_clean=False, ignore_zero=True)
1545
from_location = pull_loc(branch_from)
1546
br_to.set_parent(pull_loc(branch_from))