view contrib/showstack.py @ 27580:34c3ea65d6d1

templates: support linking to main help page

Currently, the "helptopics" template assumes it is only used as the
main index and therefore doesn't hyperlink "help" in the navigation
list. Sub-topics will introduce an additional consumer of this
template. So teach the template to hyperlink the "help" navigation
entry when necessary.

# 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