RetroDECK/global.sh

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#!/bin/bash
# This file is containing some global function needed for the script such as the config file tools
rd_conf="/var/config/retrodeck/retrodeck.cfg"
conf_init() {
# initializing and reading the retrodeck config file
if [ ! -f $rd_conf ]
then # I have to initialize the variables as they cannot be red from an empty config file
touch $rd_conf
# Variables to manage: adding a variable here means adding it to conf_write()
version="$(cat /app/retrodeck/version)" # version info taken from the version file
rdhome="$HOME/retrodeck" # the retrodeck home, aka ~/retrodeck
roms_folder="$rdhome/roms" # default roms folder location (intenral)
else # i just read the variables
source $rd_conf
fi
}
conf_write() {
# writes the variables in the retrodeck config file
# TODO: this can be optimized with a while and a list of variables to check
if [ ! -z "$version" ] then #if the variable is not null then I update it
sed -i "s%version=.*%version=$version%" $rd_conf
fi
if [ ! -z "$rdhome" ] then
sed -i "s%rdhome=.*%rdhome=$rdhome%" $rd_conf
fi
if [ ! -z "$roms_folder" ] then
sed -i "s%rdhome=.*%rdhome=$roms_folder" $rd_conf
fi
}