control script for stopping and restarting macOS launchctl agents

plist_daemon_ctl

#!/bin/bash -e
# Why is there no launchtl restart or reload? Tsk.
#
cmd=$1
plistfile="$HOME/Library/LaunchAgents/homebrew.mxcl.mariadb.plist";
ps_grep_string="mysql";

function ps_grep() {
  ps aux | grep -e $ps_grep_string | grep -v 'grep';
}

case "$cmd" in

  'start')
    echo "Loading $plistfile";
    launchctl load -F $plistfile;
    sleep 5;
    ps_grep;
  ;;

  'stop')
    echo "Unloading $plistfile";
    launchctl unload -F $plistfile;
    sleep 3;
    ps_grep;
  ;;

  'restart')
    echo "Unloading and loading $plistfile";
    launchctl unload -F $plistfile \
    && sleep 3 \
    && launchctl load -F $plistfile;
    sleep 5;
    ps_grep;
  ;;

  'check')
    ps_grep;
  ;;

  *)
    # usage
    basename=`basename "$0"`
    echo "Usage: $basename {check|start|stop|restart}"
    exit 1
  ;;

esac