view contrib/showstack.py @ 30993:9c2977ceaa46

pager: move more behavior into core

This moves the global flag and the --pager=yes logic into core. Only
functionality change is that users now always get a --pager flag and
can enable the pager via the flag without the extension active.

Moving the flag into core exposes a defect in the ro localization,
which will have to be corrected later.

# 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