AMiRo-OS

      USER_DIR=${PWD}

      cd $(dirname ${BASH_SOURCE[0]})

      # initialize submodule

      git submodule update --init ./Host/stm32flash/

      cd ./Host/stm32flash/

      BUILD_STM32FLASH=true

      # test for existing bonary

      if [ -f stm32flash ]; then

        printf "WARNING: stm32flash binary already exists.\n"

        read -p "Would you like to delete and rebuild it? [Y/n] " -n 1 -i "Y" -e USER_INPUT

        if [[ $USER_INPUT =~ ^[Yy]$ ]]; then

          BUILD_STM32FLASH=true

          make clean

        elif [[ ! $USER_INPUT =~ ^[YyNn]$ ]]; then

          BUILD_STM32FLASH=false

          printf "'%s' is no valid selection. Aborting setup.\n" $USER_INPUT

        else

          BUILD_STM32FLASH=false

        fi

     fi

      # build the tool if required

      if [ $BUILD_STM32FLASH = true ]; then

       make

      fi

      cd $USER_DIR

      ;;