view contrib/showstack.py @ 29290:01248c37a68e

sslutil: print SHA-256 fingerprint by default

The world is starting to move on from SHA-1. A few commits ago, we
gained the ability to define certificate fingerprints using SHA-256
and SHA-512.

Let's start printing the SHA-256 fingerprint instead of the SHA-1
fingerprint to encourage people to pin with a more secure hashing
algorithm.

There is still a bit of work to be done around the fingerprint
messaging. This will be addressed in subsequent commits.

# showstack.py - extension to dump a Python stack trace on signal
#
# binds to both 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