view contrib/showstack.py @ 43079:5209fc94b982

ui: define (write|status|warn|note)noi18n aliases

We currently use `write(('...'))` to suppress check-code warnings
about not using translated strings. However, when we run black, it
will strip the `((...))`. In order to placate black, we'll need to use
a different mechanism to pass untranslatable strings. This commit
introduces a `writenoi18n` alias (and friends) to `write` for that
purpose.

Differential Revision: https://phab.mercurial-scm.org/D6994

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

from __future__ import absolute_import, print_function
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 sigexit(*args):
    sigshow(*args)
    print('alarm!')
    sys.exit(1)


def extsetup(ui):
    signal.signal(signal.SIGQUIT, sigshow)
    signal.signal(signal.SIGALRM, sigexit)
    try:
        signal.signal(signal.SIGINFO, sigshow)
    except AttributeError:
        pass