pinchflat/priv/cmd_wrapper.sh
Kieran c36e33e1fd [Housekeeping] Close system port when jobs are cancelled (#182)
* Created a test setup that works

* Refactored test setup into real-world fixes
2024-04-10 22:13:19 -07:00

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#!/usr/bin/env bash
# This script is a wrapper for other programs
# that ensures they are killed when stdin closes
# (eg: a job terminates)
# Start the program in the background
exec "$@" &
pid1=$!
# Silence warnings from here on
exec >/dev/null 2>&1
# Read from stdin in the background and
# kill running program when stdin closes
exec 0<&0 $(
while read; do :; done
kill -KILL $pid1
) &
pid2=$!
# Clean up
wait $pid1
ret=$?
kill -KILL $pid2
exit $ret