Simple, configuration-driven backup software for servers and workstations
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import os
import signal
def _handle_signal(signal_number, frame): # pragma: no cover
'''
Send the signal to all processes in borgmatic's process group, which includes child processes.
'''
# Prevent infinite signal handler recursion. If the parent frame is this very same handler
# function, we know we're recursing.
if frame.f_back.f_code.co_name == _handle_signal.__name__:
return
os.killpg(os.getpgrp(), signal_number)
def configure_signals(): # pragma: no cover
'''
Configure borgmatic's signal handlers to pass relevant signals through to any child processes
like Borg. Note that SIGINT gets passed through even without these changes.
'''
for signal_number in (signal.SIGHUP, signal.SIGTERM, signal.SIGUSR1, signal.SIGUSR2):
signal.signal(signal_number, _handle_signal)