view contrib/showstack.py @ 26462:3b0ec09192ae

streamclone: rename and document maybeperformstreamclone()

Upcoming patches will introduce bundle2 based streaming clones. Add
"legacy" to the function name and add a docstring clarifying the intent of
the function.

# 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