annotate contrib/showstack.py @ 29858:33461139c31c

grep: add formatter support

Several fields are renamed to be consistent with the annotate command, which
doesn't mean the last call for the name unification [1]. Actually, I'd rather
rename line_number to linenumber, linenum, lineno or line, but I want to
port the grep command to formatter first.

 [1]: https://www.mercurial-scm.org/wiki/GenericTemplatingPlan#Dictionary

I don't have any better name for the list of matched/unmatched texts, so
they are just called as "texts".

# 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