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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 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. 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 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(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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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:
847
revisions.append(rev)
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inv = other.get_inventory(str(rev.inventory_id))
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for key, entry in inv.iter_entries():
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if entry.text_id is None:
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if entry.text_id not in self.text_store:
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needed_texts.add(entry.text_id)
857
count, cp_fail = self.text_store.copy_multi(other.text_store,
859
#print "Added %d texts." % count
860
inventory_ids = [ f.inventory_id for f in revisions ]
861
count, cp_fail = self.inventory_store.copy_multi(other.inventory_store,
863
#print "Added %d inventories." % count
864
revision_ids = [ f.revision_id for f in revisions]
866
count, cp_fail = self.revision_store.copy_multi(other.revision_store,
869
assert len(cp_fail) == 0
870
return count, failures
873
def commit(self, *args, **kw):
874
from bzrlib.commit import commit
875
commit(self, *args, **kw)
878
def lookup_revision(self, revision):
879
"""Return the revision identifier for a given revision information."""
880
revno, info = self._get_revision_info(revision)
884
def revision_id_to_revno(self, revision_id):
885
"""Given a revision id, return its revno"""
886
history = self.revision_history()
888
return history.index(revision_id) + 1
890
raise bzrlib.errors.NoSuchRevision(self, revision_id)
893
def get_revision_info(self, revision):
894
"""Return (revno, revision id) for revision identifier.
896
revision can be an integer, in which case it is assumed to be revno (though
897
this will translate negative values into positive ones)
898
revision can also be a string, in which case it is parsed for something like
899
'date:' or 'revid:' etc.
901
revno, rev_id = self._get_revision_info(revision)
903
raise bzrlib.errors.NoSuchRevision(self, revision)
906
def get_rev_id(self, revno, history=None):
907
"""Find the revision id of the specified revno."""
911
history = self.revision_history()
912
elif revno <= 0 or revno > len(history):
913
raise bzrlib.errors.NoSuchRevision(self, revno)
914
return history[revno - 1]
916
def _get_revision_info(self, revision):
917
"""Return (revno, revision id) for revision specifier.
919
revision can be an integer, in which case it is assumed to be revno
920
(though this will translate negative values into positive ones)
921
revision can also be a string, in which case it is parsed for something
922
like 'date:' or 'revid:' etc.
924
A revid is always returned. If it is None, the specifier referred to
925
the null revision. If the revid does not occur in the revision
926
history, revno will be None.
932
try:# Convert to int if possible
933
revision = int(revision)
936
revs = self.revision_history()
937
if isinstance(revision, int):
939
revno = len(revs) + revision + 1
942
rev_id = self.get_rev_id(revno, revs)
943
elif isinstance(revision, basestring):
944
for prefix, func in Branch.REVISION_NAMESPACES.iteritems():
945
if revision.startswith(prefix):
946
result = func(self, revs, revision)
948
revno, rev_id = result
951
rev_id = self.get_rev_id(revno, revs)
954
raise BzrError('No namespace registered for string: %r' %
957
raise TypeError('Unhandled revision type %s' % revision)
961
raise bzrlib.errors.NoSuchRevision(self, revision)
964
def _namespace_revno(self, revs, revision):
965
"""Lookup a revision by revision number"""
966
assert revision.startswith('revno:')
968
return (int(revision[6:]),)
971
REVISION_NAMESPACES['revno:'] = _namespace_revno
973
def _namespace_revid(self, revs, revision):
974
assert revision.startswith('revid:')
975
rev_id = revision[len('revid:'):]
977
return revs.index(rev_id) + 1, rev_id
980
REVISION_NAMESPACES['revid:'] = _namespace_revid
982
def _namespace_last(self, revs, revision):
983
assert revision.startswith('last:')
985
offset = int(revision[5:])
990
raise BzrError('You must supply a positive value for --revision last:XXX')
991
return (len(revs) - offset + 1,)
992
REVISION_NAMESPACES['last:'] = _namespace_last
994
def _namespace_tag(self, revs, revision):
995
assert revision.startswith('tag:')
996
raise BzrError('tag: namespace registered, but not implemented.')
997
REVISION_NAMESPACES['tag:'] = _namespace_tag
999
def _namespace_date(self, revs, revision):
1000
assert revision.startswith('date:')
1002
# Spec for date revisions:
1004
# value can be 'yesterday', 'today', 'tomorrow' or a YYYY-MM-DD string.
1005
# it can also start with a '+/-/='. '+' says match the first
1006
# entry after the given date. '-' is match the first entry before the date
1007
# '=' is match the first entry after, but still on the given date.
1009
# +2005-05-12 says find the first matching entry after May 12th, 2005 at 0:00
1010
# -2005-05-12 says find the first matching entry before May 12th, 2005 at 0:00
1011
# =2005-05-12 says find the first match after May 12th, 2005 at 0:00 but before
1012
# May 13th, 2005 at 0:00
1014
# So the proper way of saying 'give me all entries for today' is:
1015
# -r {date:+today}:{date:-tomorrow}
1016
# The default is '=' when not supplied
1019
if val[:1] in ('+', '-', '='):
1020
match_style = val[:1]
1023
today = datetime.datetime.today().replace(hour=0,minute=0,second=0,microsecond=0)
1024
if val.lower() == 'yesterday':
1025
dt = today - datetime.timedelta(days=1)
1026
elif val.lower() == 'today':
1028
elif val.lower() == 'tomorrow':
1029
dt = today + datetime.timedelta(days=1)
1032
# This should be done outside the function to avoid recompiling it.
1033
_date_re = re.compile(
1034
r'(?P<date>(?P<year>\d\d\d\d)-(?P<month>\d\d)-(?P<day>\d\d))?'
1036
r'(?P<time>(?P<hour>\d\d):(?P<minute>\d\d)(:(?P<second>\d\d))?)?'
1038
m = _date_re.match(val)
1039
if not m or (not m.group('date') and not m.group('time')):
1040
raise BzrError('Invalid revision date %r' % revision)
1043
year, month, day = int(m.group('year')), int(m.group('month')), int(m.group('day'))
1045
year, month, day = today.year, today.month, today.day
1047
hour = int(m.group('hour'))
1048
minute = int(m.group('minute'))
1049
if m.group('second'):
1050
second = int(m.group('second'))
1054
hour, minute, second = 0,0,0
1056
dt = datetime.datetime(year=year, month=month, day=day,
1057
hour=hour, minute=minute, second=second)
1061
if match_style == '-':
1063
elif match_style == '=':
1064
last = dt + datetime.timedelta(days=1)
1067
for i in range(len(revs)-1, -1, -1):
1068
r = self.get_revision(revs[i])
1069
# TODO: Handle timezone.
1070
dt = datetime.datetime.fromtimestamp(r.timestamp)
1071
if first >= dt and (last is None or dt >= last):
1074
for i in range(len(revs)):
1075
r = self.get_revision(revs[i])
1076
# TODO: Handle timezone.
1077
dt = datetime.datetime.fromtimestamp(r.timestamp)
1078
if first <= dt and (last is None or dt <= last):
1080
REVISION_NAMESPACES['date:'] = _namespace_date
1082
def revision_tree(self, revision_id):
1083
"""Return Tree for a revision on this branch.
1085
`revision_id` may be None for the null revision, in which case
1086
an `EmptyTree` is returned."""
1087
# TODO: refactor this to use an existing revision object
1088
# so we don't need to read it in twice.
1089
if revision_id == None:
1092
inv = self.get_revision_inventory(revision_id)
1093
return RevisionTree(self.text_store, inv)
1096
def working_tree(self):
1097
"""Return a `Tree` for the working copy."""
1098
from workingtree import WorkingTree
1099
return WorkingTree(self.base, self.read_working_inventory())
1102
def basis_tree(self):
1103
"""Return `Tree` object for last revision.
1105
If there are no revisions yet, return an `EmptyTree`.
1107
r = self.last_patch()
1111
return RevisionTree(self.text_store, self.get_revision_inventory(r))
1115
def rename_one(self, from_rel, to_rel):
1118
This can change the directory or the filename or both.
1122
tree = self.working_tree()
1123
inv = tree.inventory
1124
if not tree.has_filename(from_rel):
1125
raise BzrError("can't rename: old working file %r does not exist" % from_rel)
1126
if tree.has_filename(to_rel):
1127
raise BzrError("can't rename: new working file %r already exists" % to_rel)
1129
file_id = inv.path2id(from_rel)
1131
raise BzrError("can't rename: old name %r is not versioned" % from_rel)
1133
if inv.path2id(to_rel):
1134
raise BzrError("can't rename: new name %r is already versioned" % to_rel)
1136
to_dir, to_tail = os.path.split(to_rel)
1137
to_dir_id = inv.path2id(to_dir)
1138
if to_dir_id == None and to_dir != '':
1139
raise BzrError("can't determine destination directory id for %r" % to_dir)
1141
mutter("rename_one:")
1142
mutter(" file_id {%s}" % file_id)
1143
mutter(" from_rel %r" % from_rel)
1144
mutter(" to_rel %r" % to_rel)
1145
mutter(" to_dir %r" % to_dir)
1146
mutter(" to_dir_id {%s}" % to_dir_id)
1148
inv.rename(file_id, to_dir_id, to_tail)
1150
from_abs = self.abspath(from_rel)
1151
to_abs = self.abspath(to_rel)
1153
os.rename(from_abs, to_abs)
1155
raise BzrError("failed to rename %r to %r: %s"
1156
% (from_abs, to_abs, e[1]),
1157
["rename rolled back"])
1159
self._write_inventory(inv)
1164
def move(self, from_paths, to_name):
1167
to_name must exist as a versioned directory.
1169
If to_name exists and is a directory, the files are moved into
1170
it, keeping their old names. If it is a directory,
1172
Note that to_name is only the last component of the new name;
1173
this doesn't change the directory.
1175
This returns a list of (from_path, to_path) pairs for each
1176
entry that is moved.
1181
## TODO: Option to move IDs only
1182
assert not isinstance(from_paths, basestring)
1183
tree = self.working_tree()
1184
inv = tree.inventory
1185
to_abs = self.abspath(to_name)
1186
if not isdir(to_abs):
1187
raise BzrError("destination %r is not a directory" % to_abs)
1188
if not tree.has_filename(to_name):
1189
raise BzrError("destination %r not in working directory" % to_abs)
1190
to_dir_id = inv.path2id(to_name)
1191
if to_dir_id == None and to_name != '':
1192
raise BzrError("destination %r is not a versioned directory" % to_name)
1193
to_dir_ie = inv[to_dir_id]
1194
if to_dir_ie.kind not in ('directory', 'root_directory'):
1195
raise BzrError("destination %r is not a directory" % to_abs)
1197
to_idpath = inv.get_idpath(to_dir_id)
1199
for f in from_paths:
1200
if not tree.has_filename(f):
1201
raise BzrError("%r does not exist in working tree" % f)
1202
f_id = inv.path2id(f)
1204
raise BzrError("%r is not versioned" % f)
1205
name_tail = splitpath(f)[-1]
1206
dest_path = appendpath(to_name, name_tail)
1207
if tree.has_filename(dest_path):
1208
raise BzrError("destination %r already exists" % dest_path)
1209
if f_id in to_idpath:
1210
raise BzrError("can't move %r to a subdirectory of itself" % f)
1212
# OK, so there's a race here, it's possible that someone will
1213
# create a file in this interval and then the rename might be
1214
# left half-done. But we should have caught most problems.
1216
for f in from_paths:
1217
name_tail = splitpath(f)[-1]
1218
dest_path = appendpath(to_name, name_tail)
1219
result.append((f, dest_path))
1220
inv.rename(inv.path2id(f), to_dir_id, name_tail)
1222
os.rename(self.abspath(f), self.abspath(dest_path))
1224
raise BzrError("failed to rename %r to %r: %s" % (f, dest_path, e[1]),
1225
["rename rolled back"])
1227
self._write_inventory(inv)
1234
def revert(self, filenames, old_tree=None, backups=True):
1235
"""Restore selected files to the versions from a previous tree.
1238
If true (default) backups are made of files before
1241
from bzrlib.errors import NotVersionedError, BzrError
1242
from bzrlib.atomicfile import AtomicFile
1243
from bzrlib.osutils import backup_file
1245
inv = self.read_working_inventory()
1246
if old_tree is None:
1247
old_tree = self.basis_tree()
1248
old_inv = old_tree.inventory
1251
for fn in filenames:
1252
file_id = inv.path2id(fn)
1254
raise NotVersionedError("not a versioned file", fn)
1255
if not old_inv.has_id(file_id):
1256
raise BzrError("file not present in old tree", fn, file_id)
1257
nids.append((fn, file_id))
1259
# TODO: Rename back if it was previously at a different location
1261
# TODO: If given a directory, restore the entire contents from
1262
# the previous version.
1264
# TODO: Make a backup to a temporary file.
1266
# TODO: If the file previously didn't exist, delete it?
1267
for fn, file_id in nids:
1270
f = AtomicFile(fn, 'wb')
1272
f.write(old_tree.get_file(file_id).read())
1278
def pending_merges(self):
1279
"""Return a list of pending merges.
1281
These are revisions that have been merged into the working
1282
directory but not yet committed.
1284
cfn = self.controlfilename('pending-merges')
1285
if not os.path.exists(cfn):
1288
for l in self.controlfile('pending-merges', 'r').readlines():
1289
p.append(l.rstrip('\n'))
1293
def add_pending_merge(self, revision_id):
1294
from bzrlib.revision import validate_revision_id
1296
validate_revision_id(revision_id)
1298
p = self.pending_merges()
1299
if revision_id in p:
1301
p.append(revision_id)
1302
self.set_pending_merges(p)
1305
def set_pending_merges(self, rev_list):
1306
from bzrlib.atomicfile import AtomicFile
1309
f = AtomicFile(self.controlfilename('pending-merges'))
1320
def get_parent(self):
1321
"""Return the parent location of the branch.
1323
This is the default location for push/pull/missing. The usual
1324
pattern is that the user can override it by specifying a
1328
_locs = ['parent', 'pull', 'x-pull']
1331
return self.controlfile(l, 'r').read().strip('\n')
1333
if e.errno != errno.ENOENT:
1338
def set_parent(self, url):
1339
# TODO: Maybe delete old location files?
1340
from bzrlib.atomicfile import AtomicFile
1343
f = AtomicFile(self.controlfilename('parent'))
1352
def check_revno(self, revno):
1354
Check whether a revno corresponds to any revision.
1355
Zero (the NULL revision) is considered valid.
1358
self.check_real_revno(revno)
1360
def check_real_revno(self, revno):
1362
Check whether a revno corresponds to a real revision.
1363
Zero (the NULL revision) is considered invalid
1365
if revno < 1 or revno > self.revno():
1366
raise InvalidRevisionNumber(revno)
1371
class ScratchBranch(Branch):
1372
"""Special test class: a branch that cleans up after itself.
1374
>>> b = ScratchBranch()
1382
def __init__(self, files=[], dirs=[], base=None):
1383
"""Make a test branch.
1385
This creates a temporary directory and runs init-tree in it.
1387
If any files are listed, they are created in the working copy.
1389
from tempfile import mkdtemp
1394
Branch.__init__(self, base, init=init)
1396
os.mkdir(self.abspath(d))
1399
file(os.path.join(self.base, f), 'w').write('content of %s' % f)
1404
>>> orig = ScratchBranch(files=["file1", "file2"])
1405
>>> clone = orig.clone()
1406
>>> os.path.samefile(orig.base, clone.base)
1408
>>> os.path.isfile(os.path.join(clone.base, "file1"))
1411
from shutil import copytree
1412
from tempfile import mkdtemp
1415
copytree(self.base, base, symlinks=True)
1416
return ScratchBranch(base=base)
1424
"""Destroy the test branch, removing the scratch directory."""
1425
from shutil import rmtree
1428
mutter("delete ScratchBranch %s" % self.base)
1431
# Work around for shutil.rmtree failing on Windows when
1432
# readonly files are encountered
1433
mutter("hit exception in destroying ScratchBranch: %s" % e)
1434
for root, dirs, files in os.walk(self.base, topdown=False):
1436
os.chmod(os.path.join(root, name), 0700)
1442
######################################################################
1446
def is_control_file(filename):
1447
## FIXME: better check
1448
filename = os.path.normpath(filename)
1449
while filename != '':
1450
head, tail = os.path.split(filename)
1451
## mutter('check %r for control file' % ((head, tail), ))
1452
if tail == bzrlib.BZRDIR:
1454
if filename == head:
1461
def gen_file_id(name):
1462
"""Return new file id.
1464
This should probably generate proper UUIDs, but for the moment we
1465
cope with just randomness because running uuidgen every time is
1468
from binascii import hexlify
1469
from time import time
1471
# get last component
1472
idx = name.rfind('/')
1474
name = name[idx+1 : ]
1475
idx = name.rfind('\\')
1477
name = name[idx+1 : ]
1479
# make it not a hidden file
1480
name = name.lstrip('.')
1482
# remove any wierd characters; we don't escape them but rather
1483
# just pull them out
1484
name = re.sub(r'[^\w.]', '', name)
1486
s = hexlify(rand_bytes(8))
1487
return '-'.join((name, compact_date(time()), s))
1491
"""Return a new tree-root file id."""
1492
return gen_file_id('TREE_ROOT')
1495
def pull_loc(branch):
1496
# TODO: Should perhaps just make attribute be 'base' in
1497
# RemoteBranch and Branch?
1498
if hasattr(branch, "baseurl"):
1499
return branch.baseurl
1504
def copy_branch(branch_from, to_location, revision=None):
1505
"""Copy branch_from into the existing directory to_location.
1508
If not None, only revisions up to this point will be copied.
1509
The head of the new branch will be that revision.
1512
The name of a local directory that exists but is empty.
1514
from bzrlib.merge import merge
1515
from bzrlib.branch import Branch
1517
assert isinstance(branch_from, Branch)
1518
assert isinstance(to_location, basestring)
1520
br_to = Branch(to_location, init=True)
1521
br_to.set_root_id(branch_from.get_root_id())
1522
if revision is None:
1523
revno = branch_from.revno()
1525
revno, rev_id = branch_from.get_revision_info(revision)
1526
br_to.update_revisions(branch_from, stop_revision=revno)
1527
merge((to_location, -1), (to_location, 0), this_dir=to_location,
1528
check_clean=False, ignore_zero=True)
1530
from_location = pull_loc(branch_from)
1531
br_to.set_parent(pull_loc(branch_from))