2033 #####################################################################

  2034 ### Obsolescence marker exchange experimenation                   ###

  2035 #####################################################################

  2036 

  2037 @command('debugobsoleterelevant',

  2038          [],

  2039          'REVSET')

  2040 def debugobsoleterelevant(ui, repo, *revsets):

  2041     """print allobsolescence marker relevant to a set of revision"""

  2042     nodes = [ctx.node() for ctx in repo.set('%lr', revsets)]

  2043     markers = repo.obsstore.relevantmarkers(nodes)

  2044     for rawmarker in sorted(markers):

  2045         marker = obsolete.marker(repo, rawmarker)

  2046         cmdutil.showmarker(ui, marker)

  2047 

  2048 @eh.addattr(obsolete.obsstore, 'relevantmarkers')

  2049 def relevantmarkers(self, nodes):

  2050     """return a set of all obsolescence marker relevant to a set of node.

  2051 

  2052     "relevant" to a set of node mean:

  2053 

  2054     - marker that use this changeset as successors

  2055     - prune marker of direct children on this changeset.

  2056     - recursive application of the two rules on precursors of these markers

  2057 

  2058     It  a set so you cannot rely on order"""

  2059     seennodes = set(nodes)

  2060     seenmarkers = set()

  2061     pendingnodes = set(nodes)

  2062     precursorsmarkers = self.precursors

  2063     prunedchildren = self.prunedchildren

  2064     while pendingnodes:

  2065         direct = set()

  2066         for current in pendingnodes:

  2067             direct.update(precursorsmarkers.get(current, ()))

  2068             direct.update(prunedchildren.get(current, ()))

  2069         direct -= seenmarkers

  2070         pendingnodes = set([m[0] for m in direct])

  2071         seenmarkers |= direct

  2072         pendingnodes -= seennodes

  2073         seennodes |= pendingnodes

  2074     return seenmarkers

  2075 

  2076