Mercurial > hg

view contrib/showstack.py @ 38788:a9ff2b0c11dd

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
dispatch: show a short error message when invalid global option given Similar reasoning as the previous patch. Differential Revision: https://phab.mercurial-scm.org/D4025
author Martin von Zweigbergk <martinvonz@google.com>
date Tue, 24 Jul 2018 10:47:42 -0700
parents c9eb92fb87b7
children acf5dbe39478
line wrap: on
line source

# 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