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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from __future__ import absolute_import
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from bzrlib.lazy_import import lazy_import
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lazy_import(globals(), """
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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from bzrlib import (
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branch as _mod_branch,
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from bzrlib.i18n import gettext
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class RevisionInfo(object):
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"""The results of applying a revision specification to a branch."""
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or treat the result as a tuple.
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def __init__(self, branch, revno=None, rev_id=None):
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def __init__(self, branch, revno, rev_id=_marker):
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self.branch = branch
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self._has_revno = (revno is not None)
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if self.rev_id is None and self._revno is not None:
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# allow caller to be lazy
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self.rev_id = branch.get_rev_id(self._revno)
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if not self._has_revno and self.rev_id is not None:
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self._revno = self.branch.revision_id_to_revno(self.rev_id)
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except errors.NoSuchRevision:
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self._has_revno = True
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if self.revno is None:
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self.rev_id = branch.get_rev_id(self.revno)
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def __nonzero__(self):
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# first the easy ones...
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if self.rev_id is None:
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if self.revno is not None:
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# TODO: otherwise, it should depend on how I was built -
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# if it's in_history(branch), then check revision_history(),
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# if it's in_store(branch), do the check below
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self.revno, self.rev_id, self.branch)
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def from_revision_id(branch, revision_id, revs=symbol_versioning.DEPRECATED_PARAMETER):
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def from_revision_id(branch, revision_id, revs):
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"""Construct a RevisionInfo given just the id.
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Use this if you don't know or care what the revno is.
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if symbol_versioning.deprecated_passed(revs):
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symbol_versioning.warn(
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'RevisionInfo.from_revision_id(revs) was deprecated in 2.5.',
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return RevisionInfo(branch, revno=None, rev_id=revision_id)
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revno = revs.index(revision_id) + 1
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return RevisionInfo(branch, revno, revision_id)
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# classes in this list should have a "prefix" attribute, against which
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# string specs are matched
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class RevisionSpec(object):
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# wants_revision_history has been deprecated in 2.5.
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wants_revision_history = False
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dwim_catchable_exceptions = (errors.InvalidRevisionSpec,)
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"""Exceptions that RevisionSpec_dwim._match_on will catch.
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If the revspec is part of ``dwim_revspecs``, it may be tried with an
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invalid revspec and raises some exception. The exceptions mentioned here
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will not be reported to the user but simply ignored without stopping the
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def __new__(cls, spec, _internal=False):
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return object.__new__(cls, spec, _internal=_internal)
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symbol_versioning.warn('Creating a RevisionSpec directly has'
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' been deprecated in version 0.11. Use'
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' RevisionSpec.from_string()'
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DeprecationWarning, stacklevel=2)
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return RevisionSpec.from_string(spec)
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def from_string(spec):
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return RevisionSpec(None, _internal=True)
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match = revspec_registry.get_prefix(spec)
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if match is not None:
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spectype, specsuffix = match
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trace.mutter('Returning RevisionSpec %s for %s',
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spectype.__name__, spec)
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return spectype(spec, _internal=True)
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assert isinstance(spec, basestring), \
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"You should only supply strings not %s" % (type(spec),)
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for spectype in SPEC_TYPES:
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if spec.startswith(spectype.prefix):
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trace.mutter('Returning RevisionSpec %s for %s',
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spectype.__name__, spec)
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return spectype(spec, _internal=True)
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# Otherwise treat it as a DWIM, build the RevisionSpec object and
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# wait for _match_on to be called.
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return RevisionSpec_dwim(spec, _internal=True)
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# RevisionSpec_revno is special cased, because it is the only
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# one that directly handles plain integers
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# TODO: This should not be special cased rather it should be
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# a method invocation on spectype.canparse()
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if _revno_regex is None:
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_revno_regex = re.compile(r'^(?:(\d+(\.\d+)*)|-\d+)(:.*)?$')
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if _revno_regex.match(spec) is not None:
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return RevisionSpec_revno(spec, _internal=True)
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raise errors.NoSuchRevisionSpec(spec)
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def __init__(self, spec, _internal=False):
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"""Create a RevisionSpec referring to the Null revision.
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# will do what you expect.
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in_store = in_history
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in_branch = in_store
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def as_revision_id(self, context_branch):
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"""Return just the revision_id for this revisions spec.
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Some revision specs require a context_branch to be able to determine
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their value. Not all specs will make use of it.
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return self._as_revision_id(context_branch)
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def _as_revision_id(self, context_branch):
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"""Implementation of as_revision_id()
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Classes should override this function to provide appropriate
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functionality. The default is to just call '.in_history().rev_id'
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return self.in_history(context_branch).rev_id
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def as_tree(self, context_branch):
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"""Return the tree object for this revisions spec.
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Some revision specs require a context_branch to be able to determine
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the revision id and access the repository. Not all specs will make
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return self._as_tree(context_branch)
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def _as_tree(self, context_branch):
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"""Implementation of as_tree().
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Classes should override this function to provide appropriate
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functionality. The default is to just call '.as_revision_id()'
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and get the revision tree from context_branch's repository.
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revision_id = self.as_revision_id(context_branch)
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return context_branch.repository.revision_tree(revision_id)
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def __repr__(self):
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# this is mostly for helping with testing
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return '<%s %s>' % (self.__class__.__name__,
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def needs_branch(self):
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"""Whether this revision spec needs a branch.
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class RevisionSpec_dwim(RevisionSpec):
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"""Provides a DWIMish revision specifier lookup.
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Note that this does not go in the revspec_registry because by definition
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there is no prefix to identify it. It's solely called from
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RevisionSpec.from_string() because the DWIMification happen when _match_on
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is called so the string describing the revision is kept here until needed.
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_revno_regex = lazy_regex.lazy_compile(r'^(?:(\d+(\.\d+)*)|-\d+)(:.*)?$')
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# The revspecs to try
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_possible_revspecs = []
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def _try_spectype(self, rstype, branch):
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rs = rstype(self.spec, _internal=True)
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# Hit in_history to find out if it exists, or we need to try the
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return rs.in_history(branch)
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def _match_on(self, branch, revs):
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"""Run the lookup and see what we can get."""
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# First, see if it's a revno
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if self._revno_regex.match(self.spec) is not None:
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return self._try_spectype(RevisionSpec_revno, branch)
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except RevisionSpec_revno.dwim_catchable_exceptions:
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# Next see what has been registered
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for objgetter in self._possible_revspecs:
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rs_class = objgetter.get_obj()
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return self._try_spectype(rs_class, branch)
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except rs_class.dwim_catchable_exceptions:
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# Try the old (deprecated) dwim list:
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for rs_class in dwim_revspecs:
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return self._try_spectype(rs_class, branch)
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except rs_class.dwim_catchable_exceptions:
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# Well, I dunno what it is. Note that we don't try to keep track of the
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# first of last exception raised during the DWIM tries as none seems
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raise errors.InvalidRevisionSpec(self.spec, branch)
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def append_possible_revspec(cls, revspec):
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"""Append a possible DWIM revspec.
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:param revspec: Revision spec to try.
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cls._possible_revspecs.append(registry._ObjectGetter(revspec))
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def append_possible_lazy_revspec(cls, module_name, member_name):
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"""Append a possible lazily loaded DWIM revspec.
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:param module_name: Name of the module with the revspec
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:param member_name: Name of the revspec within the module
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cls._possible_revspecs.append(
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registry._LazyObjectGetter(module_name, member_name))
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class RevisionSpec_revno(RevisionSpec):
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"""Selects a revision using a number."""
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help_txt = """Selects a revision using a number.
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Use an integer to specify a revision in the history of the branch.
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Optionally a branch can be specified. A negative number will count
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from the end of the branch (-1 is the last revision, -2 the previous
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one). If the negative number is larger than the branch's history, the
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first revision is returned.
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revno:1 -> return the first revision of this branch
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Optionally a branch can be specified. The 'revno:' prefix is optional.
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A negative number will count from the end of the branch (-1 is the
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last revision, -2 the previous one). If the negative number is larger
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than the branch's history, the first revision is returned.
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revno:1 -> return the first revision
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revno:3:/path/to/branch -> return the 3rd revision of
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the branch '/path/to/branch'
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revno:-1 -> The last revision in a branch.
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# the user has overriden the branch to look in.
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branch = _mod_branch.Branch.open(branch_spec)
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# the user has override the branch to look in.
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# we need to refresh the revision_history map and
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from bzrlib.branch import Branch
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branch = Branch.open(branch_spec)
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# Need to use a new revision history
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# because we are using a specific branch
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revs = branch.revision_history()
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revision_id = branch.dotted_revno_to_revision_id(match_revno,
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except errors.NoSuchRevision:
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raise errors.InvalidRevisionSpec(self.user_spec, branch)
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last_rev = branch.last_revision()
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merge_sorted_revisions = tsort.merge_sort(
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branch.repository.get_revision_graph(last_rev),
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return item[3] == match_revno
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revisions = filter(match, merge_sorted_revisions)
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if len(revisions) != 1:
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return RevisionInfo(branch, None, None)
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# there is no traditional 'revno' for dotted-decimal revnos.
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# so for API compatibility we return None.
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return branch, None, revision_id
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# so for API compatability we return None.
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return RevisionInfo(branch, None, revisions[0][1])
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last_revno, last_revision_id = branch.last_revision_info()
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# if get_rev_id supported negative revnos, there would not be a
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# need for this special case.
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if (-revno) >= last_revno:
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if (-revno) >= len(revs):
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revno = last_revno + revno + 1
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revno = len(revs) + revno + 1
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revision_id = branch.get_rev_id(revno)
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revision_id = branch.get_rev_id(revno, revs)
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except errors.NoSuchRevision:
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raise errors.InvalidRevisionSpec(self.user_spec, branch)
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return branch, revno, revision_id
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def _as_revision_id(self, context_branch):
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# We would have the revno here, but we don't really care
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branch, revno, revision_id = self._lookup(context_branch)
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return RevisionInfo(branch, revno, revision_id)
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def needs_branch(self):
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return self.spec.find(':') == -1
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return self.spec[self.spec.find(':')+1:]
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RevisionSpec_int = RevisionSpec_revno
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class RevisionIDSpec(RevisionSpec):
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def _match_on(self, branch, revs):
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revision_id = self.as_revision_id(branch)
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return RevisionInfo.from_revision_id(branch, revision_id)
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class RevisionSpec_revid(RevisionIDSpec):
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SPEC_TYPES.append(RevisionSpec_revno)
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class RevisionSpec_revid(RevisionSpec):
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"""Selects a revision using the revision id."""
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help_txt = """Selects a revision using the revision id.
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Supply a specific revision id, that can be used to specify any
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revision id in the ancestry of the branch.
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revision id in the ancestry of the branch.
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Including merges, and pending merges.
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revid:aaaa@bbbb-123456789 -> Select revision 'aaaa@bbbb-123456789'
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prefix = 'revid:'
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def _as_revision_id(self, context_branch):
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def _match_on(self, branch, revs):
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# self.spec comes straight from parsing the command line arguments,
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# so we expect it to be a Unicode string. Switch it to the internal
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# representation.
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return osutils.safe_revision_id(self.spec, warn=False)
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revision_id = osutils.safe_revision_id(self.spec, warn=False)
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return RevisionInfo.from_revision_id(branch, revision_id, revs)
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SPEC_TYPES.append(RevisionSpec_revid)
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class RevisionSpec_last(RevisionSpec):
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Supply a positive number to get the nth revision from the end.
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This is the same as supplying negative numbers to the 'revno:' spec.
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last:1 -> return the last revision
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last:3 -> return the revision 2 before the end.
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def _match_on(self, branch, revs):
523
revno, revision_id = self._revno_and_revision_id(branch)
524
return RevisionInfo(branch, revno, revision_id)
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def _revno_and_revision_id(self, context_branch):
527
last_revno, last_revision_id = context_branch.last_revision_info()
529
407
if self.spec == '':
531
raise errors.NoCommits(context_branch)
532
return last_revno, last_revision_id
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raise errors.NoCommits(branch)
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return RevisionInfo(branch, len(revs), revs[-1])
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offset = int(self.spec)
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except ValueError, e:
537
raise errors.InvalidRevisionSpec(self.user_spec, context_branch, e)
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raise errors.InvalidRevisionSpec(self.user_spec, branch, e)
540
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
418
raise errors.InvalidRevisionSpec(self.user_spec, branch,
541
419
'you must supply a positive value')
543
revno = last_revno - offset + 1
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revno = len(revs) - offset + 1
545
revision_id = context_branch.get_rev_id(revno)
422
revision_id = branch.get_rev_id(revno, revs)
546
423
except errors.NoSuchRevision:
547
raise errors.InvalidRevisionSpec(self.user_spec, context_branch)
548
return revno, revision_id
550
def _as_revision_id(self, context_branch):
551
# We compute the revno as part of the process, but we don't really care
553
revno, revision_id = self._revno_and_revision_id(context_branch)
424
raise errors.InvalidRevisionSpec(self.user_spec, branch)
425
return RevisionInfo(branch, revno, revision_id)
427
SPEC_TYPES.append(RevisionSpec_last)
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430
class RevisionSpec_before(RevisionSpec):
561
433
help_txt = """Selects the parent of the revision specified.
563
Supply any revision spec to return the parent of that revision. This is
564
mostly useful when inspecting revisions that are not in the revision history
435
Supply any revision spec to return the parent of that revision.
567
436
It is an error to request the parent of the null revision (before:0).
437
This is mostly useful when inspecting revisions that are not in the
438
revision history of a branch.
571
441
before:1913 -> Return the parent of revno 1913 (revno 1912)
572
442
before:revid:aaaa@bbbb-1234567890 -> return the parent of revision
573
443
aaaa@bbbb-1234567890
574
bzr diff -r before:1913..1913
575
-> Find the changes between revision 1913 and its parent (1912).
576
(What changes did revision 1913 introduce).
577
This is equivalent to: bzr diff -c 1913
444
bzr diff -r before:revid:aaaa..revid:aaaa
445
-> Find the changes between revision 'aaaa' and its parent.
446
(what changes did 'aaaa' introduce)
580
449
prefix = 'before:'
582
451
def _match_on(self, branch, revs):
583
452
r = RevisionSpec.from_string(self.spec)._match_on(branch, revs)
602
475
return RevisionInfo(branch, revno, revision_id)
604
def _as_revision_id(self, context_branch):
605
base_revision_id = RevisionSpec.from_string(self.spec)._as_revision_id(context_branch)
606
if base_revision_id == revision.NULL_REVISION:
607
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
608
'cannot go before the null: revision')
609
context_repo = context_branch.repository
610
context_repo.lock_read()
612
parent_map = context_repo.get_parent_map([base_revision_id])
614
context_repo.unlock()
615
if base_revision_id not in parent_map:
616
# Ghost, or unknown revision id
617
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
618
'cannot find the matching revision')
619
parents = parent_map[base_revision_id]
621
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
622
'No parents for revision.')
477
SPEC_TYPES.append(RevisionSpec_before)
627
480
class RevisionSpec_tag(RevisionSpec):
636
dwim_catchable_exceptions = (errors.NoSuchTag, errors.TagsNotSupported)
638
490
def _match_on(self, branch, revs):
639
491
# Can raise tags not supported, NoSuchTag, etc
640
492
return RevisionInfo.from_revision_id(branch,
641
branch.tags.lookup_tag(self.spec))
643
def _as_revision_id(self, context_branch):
644
return context_branch.tags.lookup_tag(self.spec)
493
branch.tags.lookup_tag(self.spec),
496
SPEC_TYPES.append(RevisionSpec_tag)
648
499
class _RevListToTimestamps(object):
649
500
"""This takes a list of revisions, and allows you to bisect by date"""
651
__slots__ = ['branch']
502
__slots__ = ['revs', 'branch']
653
def __init__(self, branch):
504
def __init__(self, revs, branch):
654
506
self.branch = branch
656
508
def __getitem__(self, index):
657
509
"""Get the date of the index'd item"""
658
r = self.branch.repository.get_revision(self.branch.get_rev_id(index))
510
r = self.branch.repository.get_revision(self.revs[index])
659
511
# TODO: Handle timezone.
660
512
return datetime.datetime.fromtimestamp(r.timestamp)
662
514
def __len__(self):
663
return self.branch.revno()
515
return len(self.revs)
666
518
class RevisionSpec_date(RevisionSpec):
775
626
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
776
627
return self._find_revision_info(branch, self.spec)
778
def _as_revision_id(self, context_branch):
779
return self._find_revision_id(context_branch, self.spec)
782
630
def _find_revision_info(branch, other_location):
783
revision_id = RevisionSpec_ancestor._find_revision_id(branch,
785
return RevisionInfo(branch, None, revision_id)
788
def _find_revision_id(branch, other_location):
789
631
from bzrlib.branch import Branch
633
other_branch = Branch.open(other_location)
634
revision_a = branch.last_revision()
635
revision_b = other_branch.last_revision()
636
for r, b in ((revision_a, branch), (revision_b, other_branch)):
637
if r in (None, revision.NULL_REVISION):
638
raise errors.NoCommits(b)
639
revision_source = revision.MultipleRevisionSources(
640
branch.repository, other_branch.repository)
641
rev_id = revision.common_ancestor(revision_a, revision_b,
793
revision_a = revision.ensure_null(branch.last_revision())
794
if revision_a == revision.NULL_REVISION:
795
raise errors.NoCommits(branch)
796
if other_location == '':
797
other_location = branch.get_parent()
798
other_branch = Branch.open(other_location)
799
other_branch.lock_read()
801
revision_b = revision.ensure_null(other_branch.last_revision())
802
if revision_b == revision.NULL_REVISION:
803
raise errors.NoCommits(other_branch)
804
graph = branch.repository.get_graph(other_branch.repository)
805
rev_id = graph.find_unique_lca(revision_a, revision_b)
807
other_branch.unlock()
808
if rev_id == revision.NULL_REVISION:
809
raise errors.NoCommonAncestor(revision_a, revision_b)
644
revno = branch.revision_id_to_revno(rev_id)
645
except errors.NoSuchRevision:
647
return RevisionInfo(branch, revno, rev_id)
650
SPEC_TYPES.append(RevisionSpec_ancestor)
817
653
class RevisionSpec_branch(RevisionSpec):
834
668
revision_b = other_branch.last_revision()
835
669
if revision_b in (None, revision.NULL_REVISION):
836
670
raise errors.NoCommits(other_branch)
838
branch = other_branch
841
# pull in the remote revisions so we can diff
842
branch.fetch(other_branch, revision_b)
843
except errors.ReadOnlyError:
844
branch = other_branch
845
return RevisionInfo(branch, None, revision_b)
847
def _as_revision_id(self, context_branch):
848
from bzrlib.branch import Branch
849
other_branch = Branch.open(self.spec)
850
last_revision = other_branch.last_revision()
851
last_revision = revision.ensure_null(last_revision)
852
context_branch.fetch(other_branch, last_revision)
853
if last_revision == revision.NULL_REVISION:
854
raise errors.NoCommits(other_branch)
857
def _as_tree(self, context_branch):
858
from bzrlib.branch import Branch
859
other_branch = Branch.open(self.spec)
860
last_revision = other_branch.last_revision()
861
last_revision = revision.ensure_null(last_revision)
862
if last_revision == revision.NULL_REVISION:
863
raise errors.NoCommits(other_branch)
864
return other_branch.repository.revision_tree(last_revision)
866
def needs_branch(self):
869
def get_branch(self):
671
# pull in the remote revisions so we can diff
672
branch.fetch(other_branch, revision_b)
674
revno = branch.revision_id_to_revno(revision_b)
675
except errors.NoSuchRevision:
677
return RevisionInfo(branch, revno, revision_b)
679
SPEC_TYPES.append(RevisionSpec_branch)
874
682
class RevisionSpec_submit(RevisionSpec_ancestor):
879
687
Diffing against this shows all the changes that were made in this branch,
880
688
and is a good predictor of what merge will do. The submit branch is
881
used by the bundle and merge directive commands. If no submit branch
689
used by the bundle and merge directive comands. If no submit branch
882
690
is specified, the parent branch is used instead.
884
692
The common ancestor is the last revision that existed in both
885
693
branches. Usually this is the branch point, but it could also be
886
694
a revision that was merged.
890
697
$ bzr diff -r submit:
893
700
prefix = 'submit:'
895
def _get_submit_location(self, branch):
702
def _match_on(self, branch, revs):
703
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
896
704
submit_location = branch.get_submit_branch()
897
705
location_type = 'submit branch'
898
706
if submit_location is None:
900
708
location_type = 'parent branch'
901
709
if submit_location is None:
902
710
raise errors.NoSubmitBranch(branch)
903
trace.note(gettext('Using {0} {1}').format(location_type,
905
return submit_location
907
def _match_on(self, branch, revs):
908
trace.mutter('matching ancestor: on: %s, %s', self.spec, branch)
909
return self._find_revision_info(branch,
910
self._get_submit_location(branch))
912
def _as_revision_id(self, context_branch):
913
return self._find_revision_id(context_branch,
914
self._get_submit_location(context_branch))
917
class RevisionSpec_annotate(RevisionIDSpec):
921
help_txt = """Select the revision that last modified the specified line.
923
Select the revision that last modified the specified line. Line is
924
specified as path:number. Path is a relative path to the file. Numbers
925
start at 1, and are relative to the current version, not the last-
926
committed version of the file.
929
def _raise_invalid(self, numstring, context_branch):
930
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
931
'No such line: %s' % numstring)
933
def _as_revision_id(self, context_branch):
934
path, numstring = self.spec.rsplit(':', 1)
936
index = int(numstring) - 1
938
self._raise_invalid(numstring, context_branch)
939
tree, file_path = workingtree.WorkingTree.open_containing(path)
942
file_id = tree.path2id(file_path)
944
raise errors.InvalidRevisionSpec(self.user_spec,
945
context_branch, "File '%s' is not versioned." %
947
revision_ids = [r for (r, l) in tree.annotate_iter(file_id)]
951
revision_id = revision_ids[index]
953
self._raise_invalid(numstring, context_branch)
954
if revision_id == revision.CURRENT_REVISION:
955
raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
956
'Line %s has not been committed.' % numstring)
960
class RevisionSpec_mainline(RevisionIDSpec):
962
help_txt = """Select mainline revision that merged the specified revision.
964
Select the revision that merged the specified revision into mainline.
969
def _as_revision_id(self, context_branch):
970
revspec = RevisionSpec.from_string(self.spec)
971
if revspec.get_branch() is None:
972
spec_branch = context_branch
974
spec_branch = _mod_branch.Branch.open(revspec.get_branch())
975
revision_id = revspec.as_revision_id(spec_branch)
976
graph = context_branch.repository.get_graph()
977
result = graph.find_lefthand_merger(revision_id,
978
context_branch.last_revision())
980
raise errors.InvalidRevisionSpec(self.user_spec, context_branch)
984
# The order in which we want to DWIM a revision spec without any prefix.
985
# revno is always tried first and isn't listed here, this is used by
986
# RevisionSpec_dwim._match_on
987
dwim_revspecs = symbol_versioning.deprecated_list(
988
symbol_versioning.deprecated_in((2, 4, 0)), "dwim_revspecs", [])
990
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_tag)
991
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_revid)
992
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_date)
993
RevisionSpec_dwim.append_possible_revspec(RevisionSpec_branch)
995
revspec_registry = registry.Registry()
996
def _register_revspec(revspec):
997
revspec_registry.register(revspec.prefix, revspec)
999
_register_revspec(RevisionSpec_revno)
1000
_register_revspec(RevisionSpec_revid)
1001
_register_revspec(RevisionSpec_last)
1002
_register_revspec(RevisionSpec_before)
1003
_register_revspec(RevisionSpec_tag)
1004
_register_revspec(RevisionSpec_date)
1005
_register_revspec(RevisionSpec_ancestor)
1006
_register_revspec(RevisionSpec_branch)
1007
_register_revspec(RevisionSpec_submit)
1008
_register_revspec(RevisionSpec_annotate)
1009
_register_revspec(RevisionSpec_mainline)
711
trace.note('Using %s %s', location_type, submit_location)
712
return self._find_revision_info(branch, submit_location)
715
SPEC_TYPES.append(RevisionSpec_submit)
added
removed
bzrlib/revisionspec.py
