view contrib/showstack.py @ 37139:aa55c5354b8f

alias: reject non-ascii characters in user help/doc strings Since command doc/help texts are passed to i18n.gettext(), they must be ASCII. Otherwise, UnicodeError would be raised.
author Yuya Nishihara <yuya@tcha.org>
date Wed, 28 Mar 2018 22:04:45 +0900
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