contrib/showstack.py
author Pulkit Goyal <7895pulkit@gmail.com>
Tue, 27 Feb 2018 14:46:35 +0530
changeset 36459 580f75f70f39
parent 35656 c9eb92fb87b7
child 40036 acf5dbe39478
permissions -rw-r--r--
py3: use '%d' to convert integers to bytes Differential Revision: https://phab.mercurial-scm.org/D2479
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
26123
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     1
# showstack.py - extension to dump a Python stack trace on signal
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     2
#
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     3
# binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
35656
c9eb92fb87b7 showstack: add an extension docstring
Boris Feld <boris.feld@octobus.net>
parents: 28522
diff changeset
     4
"""dump stack trace when receiving SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs)
c9eb92fb87b7 showstack: add an extension docstring
Boris Feld <boris.feld@octobus.net>
parents: 28522
diff changeset
     5
"""
26123
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     6
28522
f2fe7b199bb4 showstack: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents: 26123
diff changeset
     7
from __future__ import absolute_import
f2fe7b199bb4 showstack: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents: 26123
diff changeset
     8
import signal
f2fe7b199bb4 showstack: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents: 26123
diff changeset
     9
import sys
f2fe7b199bb4 showstack: use absolute_import
Pulkit Goyal <7895pulkit@gmail.com>
parents: 26123
diff changeset
    10
import traceback
26123
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    11
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    12
def sigshow(*args):
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    13
    sys.stderr.write("\n")
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    14
    traceback.print_stack(args[1], limit=10, file=sys.stderr)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    15
    sys.stderr.write("----\n")
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    16
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    17
def extsetup(ui):
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    18
    signal.signal(signal.SIGQUIT, sigshow)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    19
    try:
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    20
        signal.signal(signal.SIGINFO, sigshow)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    21
    except AttributeError:
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    22
        pass