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
echo "RetroDECK config file not found in $rd_conf"
echo "Initializing"
touch $rd_conf
# Variables to manage: adding a variable here means adding it to conf_write()
echo "#!/bin/bash" >> $rd_conf
# version info taken from the version file
version="$(cat /app/retrodeck/version)"
echo "version=$version" >> $rd_conf
# the retrodeck home, aka ~/retrodeck
rdhome="$HOME/retrodeck"
echo "rdhome=$rdhome" >> $rd_conf
# default roms folder location (internal)
roms_folder="$roms_folder"
echo "roms_folder=$roms_folder" >> $rd_conf
else # i just read the variables
echo "Found RetroDECK config file in $rd_conf"
echo "Loading it"
source $rd_conf
fi
}
conf_write() {
# writes the variables in the retrodeck config file
echo "Writing the config file: $rd_conf"
# TODO: this can be optimized with a while and a list of variables to check
if [ ! -z "$version" ] #if the variable is not null then I update it
then
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%roms_folder=.*%roms_folder=$roms_folder%" $rd_conf
fi
}