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Viewing changes to bzrlib/revisionspec.py

  • Committer: Jelmer Vernooij
  • Date: 2010-12-20 11:57:14 UTC
  • mto: This revision was merged to the branch mainline in revision 5577.
  • Revision ID: jelmer@samba.org-20101220115714-2ru3hfappjweeg7q
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bzrlib/revisionspec.py
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""")
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from bzrlib import (
 
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    branch as _mod_branch,
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    errors,
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    osutils,
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    registry,
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    revision,
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    symbol_versioning,
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    trace,
 
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    workingtree,
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    )
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class RevisionSpec_revid(RevisionSpec):
 
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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, revs)
 
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class RevisionSpec_revid(RevisionIDSpec):
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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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    prefix = 'revid:'
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    def _match_on(self, branch, revs):
 
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    def _as_revision_id(self, context_branch):
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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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        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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    def _as_revision_id(self, context_branch):
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        return osutils.safe_revision_id(self.spec, warn=False)
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            self._get_submit_location(context_branch))
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class RevisionSpec_annotate(RevisionIDSpec):
 
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    prefix = 'annotate:'
 
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    help_txt = """Select the revision that last modified the specified line.
 
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    Select the revision that last modified the specified line.  Line is
 
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    specified as path:number.  Path is a relative path to the file.  Numbers
 
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    start at 1, and are relative to the current version, not the last-
 
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    committed version of the file.
 
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    """
 
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    def _raise_invalid(self, numstring, context_branch):
 
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        raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
 
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            'No such line: %s' % numstring)
 
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    def _as_revision_id(self, context_branch):
 
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        path, numstring = self.spec.rsplit(':', 1)
 
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        try:
 
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            index = int(numstring) - 1
 
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        except ValueError:
 
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            self._raise_invalid(numstring, context_branch)
 
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        tree, file_path = workingtree.WorkingTree.open_containing(path)
 
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        tree.lock_read()
 
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        try:
 
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            file_id = tree.path2id(file_path)
 
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            if file_id is None:
 
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                raise errors.InvalidRevisionSpec(self.user_spec,
 
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                    context_branch, "File '%s' is not versioned." %
 
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                    file_path)
 
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            revision_ids = [r for (r, l) in tree.annotate_iter(file_id)]
 
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        finally:
 
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            tree.unlock()
 
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        try:
 
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            revision_id = revision_ids[index]
 
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        except IndexError:
 
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            self._raise_invalid(numstring, context_branch)
 
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        if revision_id == revision.CURRENT_REVISION:
 
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            raise errors.InvalidRevisionSpec(self.user_spec, context_branch,
 
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                'Line %s has not been committed.' % numstring)
 
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        return revision_id
 
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class RevisionSpec_mainline(RevisionIDSpec):
 
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    help_txt = """Select mainline revision that merged the specified revision.
 
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    Select the revision that merged the specified revision into mainline.
 
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    """
 
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    prefix = 'mainline:'
 
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    def _as_revision_id(self, context_branch):
 
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        revspec = RevisionSpec.from_string(self.spec)
 
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        if revspec.get_branch() is None:
 
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            spec_branch = context_branch
 
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        else:
 
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            spec_branch = _mod_branch.Branch.open(revspec.get_branch())
 
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        revision_id = revspec.as_revision_id(spec_branch)
 
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        graph = context_branch.repository.get_graph()
 
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        result = graph.find_lefthand_merger(revision_id,
 
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                                            context_branch.last_revision())
 
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        if result is None:
 
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            raise errors.InvalidRevisionSpec(self.user_spec, context_branch)
 
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        return result
 
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# The order in which we want to DWIM a revision spec without any prefix.
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# revno is always tried first and isn't listed here, this is used by
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# RevisionSpec_dwim._match_on
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_register_revspec(RevisionSpec_ancestor)
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_register_revspec(RevisionSpec_branch)
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_register_revspec(RevisionSpec_submit)
 
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_register_revspec(RevisionSpec_annotate)
 
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_register_revspec(RevisionSpec_mainline)
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# classes in this list should have a "prefix" attribute, against which
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# string specs are matched