contrib/showstack.py
author Durham Goode <durham@fb.com>
Tue, 05 Jan 2016 17:08:14 -0800
changeset 27648 e72e669dd51f
parent 26123 bdac264e5ed4
child 28522 f2fe7b199bb4
permissions -rw-r--r--
verify: get rid of some unnecessary local variables Now that all the major functionality has been refactored out, we can delete some unused local variables.
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)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     4
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     5
import sys, signal, traceback
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     6
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     7
def sigshow(*args):
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     8
    sys.stderr.write("\n")
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
     9
    traceback.print_stack(args[1], limit=10, file=sys.stderr)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    10
    sys.stderr.write("----\n")
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 extsetup(ui):
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    13
    signal.signal(signal.SIGQUIT, sigshow)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    14
    try:
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    15
        signal.signal(signal.SIGINFO, sigshow)
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    16
    except AttributeError:
bdac264e5ed4 contrib: add showstack extension
Matt Mackall <mpm@selenic.com>
parents:
diff changeset
    17
        pass