#!/bin/bash

calibre='/opt/apps/calibre/calibre-web-0.6.20'
# get the pid of calibre, and write it into file /tmp/calibre_pids
ps -ef | grep "$calibre/cps.py" | grep -v grep | awk '{print $2}' > /tmp/calibre_pids

# if not exist, signifying that there is no calibre process
if [[ ! -s /tmp/calibre_pids ]]; then
    echo -e "\e[1;31mCannot terminate Calibre process cause there is no such things, will run calibre later automatically.\e[0m"
else
    for calibre_pid in `cat /tmp/calibre_pids`; do
        kill -9 $calibre_pid > /dev/null 2>&1
    done
fi

nohup $calibre/venv/bin/python $calibre/cps.py > /dev/null 2>&1 &
echo -e "\e[1;32mCalibre process started successfully\e[0m"