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#! /bin/bash

if [[ "${1}" == 'start' ]]
then
    cd /home/pbot

    ./envbot &
    envbot_pid=$!

    ./pbot-ng_fixer &
    pbotng_fixer_pid=$!

    ./labs_change_detector &
    labs_change_detector_pid=$!

    function closedown
    {
        echo "[pbot]: received SIGINT/SIGTERM"

        echo "[pbot]: killing envbot($envbot_pid)"
        kill $envbot_pid

        echo "[pbot]: killing pbot-ng_fixer($pbotng_fixer_pid)"
        kill $pbotng_fixer_pid

        echo "[pbot]: killing labs_change_detector($labs_change_detector_pid)"
        kill $labs_change_detector_pid

        exit
    }

    trap "closedown" SIGINT SIGTERM

    while true
    do
        sleep 5h
    done
elif [[ "${1}" == 'stop' ]]
then
    echo "[pbot]: stopping per 'stop' command"

    while true
    do
        pid=$(pgrep -u pbot | head -1)

        if [[ -n "${pid}" ]]
        then
            echo "[pbot]: killing '$(ps -p ${pid} -o comm=)'(${pid})"
            kill ${pid} &>/dev/null
            sleep 1
        else
            exit
        fi
    done
else
    echo "first arg must be \`start' or \`stop'"
fi