contrib/showstack.py
author Gregory Szorc <gregory.szorc@gmail.com>
Mon, 01 Oct 2018 23:11:07 -0700
changeset 39957 36e9d2c60837
parent 35656 c9eb92fb87b7
child 40037 acf5dbe39478
permissions -rw-r--r--
py3: use system strings for HTTP response header comparison res.headers is holding system strings. Attempting to compare against bytes always fails and we fail to print decoded CBOR responses on Python 3. After this change, various test-wireproto* tests are now properly printing CBOR response objects. Differential Revision: https://phab.mercurial-scm.org/D4835

# showstack.py - extension to dump a Python stack trace on signal
#
# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
"""dump stack trace when receiving SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
"""

from __future__ import absolute_import
import signal
import sys
import 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