view contrib/showstack.py @ 26364:6e9c2aab9925

dispatch: don't stack trace on commands like `hg .log`

This used to stack trace because it raised a util.Abort which wasn't
handled in this block. We now handle it. Additionally, we error out
earlier instead of plodding on and showing the "log" entry of the
plain `hg help` output.

# 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