view contrib/showstack.py @ 27415:f4ca33e33781

commandserver: implement name() to clarify channel is not a plain file

Because unknown attributes are delegated to the underlying file object,
commandserver channels said they were '<stdout>' or '<stdin>' even though
they weren't. This patch makes them say '<X-channel>'.

# 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