view contrib/showstack.py @ 37896:03a09579c854

tests: port test-revlog-raw.py to Python 3 # skip-blame just b prefixes Differential Revision: https://phab.mercurial-scm.org/D3496
author Augie Fackler <augie@google.com>
date Fri, 27 Apr 2018 10:46:33 -0400
parents c9eb92fb87b7
children acf5dbe39478
line wrap: on
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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