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      # obsutil.py - utility functions for obsolescence

      #

      # Copyright 2017 Boris Feld <boris.feld@octobus.net>

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      from __future__ import absolute_import

      def closestpredecessors(repo, nodeid):

          """yield the list of next predecessors pointing on visible changectx nodes

          This function respect the repoview filtering, filtered revision will be

          considered missing.

          """

          precursors = repo.obsstore.precursors

          stack = [nodeid]

          seen = set(stack)

          while stack:

              current = stack.pop()

              currentpreccs = precursors.get(current, ())

              for prec in currentpreccs:

                  precnodeid = prec[0]

                  # Basic cycle protection

                  if precnodeid in seen:

                      continue

                  seen.add(precnodeid)

                  if precnodeid in repo:

                      yield precnodeid

                  else:

                      stack.append(precnodeid)

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				# obsutil.py - utility functions for obsolescence
				#
				# Copyright 2017 Boris Feld <boris.feld@octobus.net>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.

				from __future__ import absolute_import

				def closestpredecessors(repo, nodeid):
				"""yield the list of next predecessors pointing on visible changectx nodes

				This function respect the repoview filtering, filtered revision will be
				considered missing.
				"""

				precursors = repo.obsstore.precursors
				stack = [nodeid]
				seen = set(stack)

				while stack:
				current = stack.pop()
				currentpreccs = precursors.get(current, ())

				for prec in currentpreccs:
				precnodeid = prec[0]

				# Basic cycle protection
				if precnodeid in seen:
				continue
				seen.add(precnodeid)

				if precnodeid in repo:
				yield precnodeid
				else:
				stack.append(precnodeid)