#!/bin/bash 

function print_usage_exit() {
    echo "Usage $0 -i|--install|-u|--update"
    echo "	-i or --install  Install the submodules mentioned in the submodules.list" 
    echo "	-u or --update   Update the submodules mentioned in the submodules.list"
    echo " "
    exit 1
}

function read_submodules() {
    if [ -e ./submodules.list ]; then
        source ./submodules.list
    fi
}

function add_submodules() {
    for SUB_MODULE in ${SUB_MODULES}
    do
        git submodule add -f git@gitlab.osdev.nl:OpenSystemsDevelopment/${SUB_MODULE} ${SUB_MODULE}
        git config submodule.${SUB_MODULE}.url git@gitlab.osdev.nl:OpenSystemsDevelopment/${SUB_MODULE}
    done
}

function get_submodules() {
    git submodule update --init --recursive
}

function update_submodules() {
    git submodule update --recursive
}

# =============================================================================
# ==        T H E   M A I N   E N T R Y   O F   T H I S   S C R I P T        ==
# =============================================================================
read_submodules

case "$1" in
    -i*|--install*)
        echo "Installing submodules for this repository ( ${PWD} )"
        add_submodules
        get_submodules
        ;;
    -u*|--update*)
        echo "Update submodules : ${SUB_MODULES}"
        update_submodules
        ;;
    *)
        echo "No parameters found..."
        print_usage_exit
        ;;
esac