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verify: add a hook that can let extensions manipulate file lists...

verify: add a hook that can let extensions manipulate file lists Without a hook of this nature, narrowhg[0] clones always result in 'hg verify' reporting terrible damage to the entire repository history. With this hook, we can ignore files that aren't supposed to be in the clone, and then get an accurate report of any damage present (or not) in the repo. 0: https://bitbucket.org/Google/narrowhg

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        Matt Mackall
    
contrib: add showstack extension...

              r26123
            
      # showstack.py - extension to dump a Python stack trace on signal

      #

      # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)

      import sys, signal, traceback

      def sigshow(*args):

          sys.stderr.write("\n")

          traceback.print_stack(args[1], limit=10, file=sys.stderr)

          sys.stderr.write("----\n")

      def extsetup(ui):

          signal.signal(signal.SIGQUIT, sigshow)

          try:

              signal.signal(signal.SIGINFO, sigshow)

          except AttributeError:

              pass

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Matt Mackall contrib: add showstack extension...	r26123	# showstack.py - extension to dump a Python stack trace on signal
		#
		# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)

		import sys, signal, traceback

		def sigshow(*args):
		sys.stderr.write("\n")
		traceback.print_stack(args[1], limit=10, file=sys.stderr)
		sys.stderr.write("----\n")

		def extsetup(ui):
		signal.signal(signal.SIGQUIT, sigshow)
		try:
		signal.signal(signal.SIGINFO, sigshow)
		except AttributeError:
		pass