view contrib/showstack.py @ 28477:194a6cd873cd

chg: silently inherit server exit code

If chgserver aborts during startup, for example, error.ParseError when parsing
a config file, chg client probably just wants to exit with a same exit code
without printing other unrelated text. This patch changes the text "cmdserver
exited with status" from abortmsg to debugmsg and exits with a same exit code.

# 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