upstream/mercurial-mirror Files · contrib/showstack.py

revlog: extract function for getting node from known-to-exist rev...

revlog: extract function for getting node from known-to-exist rev Many of the calls to index_node() (which converts a rev to a nodeid) are done with a rev that's know to exist. If the function fails, there's something really wrong and we should just abort. This was done in only one place. This patch starts by extracting that code to a function that we can reuse in later patches. Differential Revision: https://phab.mercurial-scm.org/D3456

Boris Feld - - Load All Authors

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

      #

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

      """dump stack trace when receiving SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)

      """

      from __future__ import absolute_import

      import signal

      import sys

      import 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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				# showstack.py - extension to dump a Python stack trace on signal
				#
				# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
				"""dump stack trace when receiving SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
				"""

				from __future__ import absolute_import
				import signal
				import sys
				import 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