sourceme

# Check if this script is being sourced
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
    echo "ERROR: This script must be sourced, not executed."
    exit 1
fi

# Load modules (if any)
# module load verilator
# module load riscv64-multilib

n_errors=0

# ORION_HOME environment variable points to root of Orion project
export ORION_HOME=$(dirname -- "$(readlink -f "${BASH_SOURCE}")")


# VERILATOR_PATH: points to verilator installation
if command -v "verilator" &>/dev/null; then
    # get verilator path
    VLP=$(dirname $(dirname `which verilator`))
    echo "Found Verilator at: $VLP"
	export VERILATOR_PATH=$VLP
else
    echo "ERROR: Verilator not found; please install verilator"
    n_errors=$((n_errors + 1))
fi


# Check if RISC-V toolchain is installed
if command -v "riscv64-unknown-elf-gcc" &>/dev/null; then
    # get riscv toolchain path
    RISCV_TOOLCHAIN_PATH=$(dirname $(dirname `which riscv64-unknown-elf-gcc`))
    echo "Found RISC-V toolchain at: $RISCV_TOOLCHAIN_PATH"
else
    echo "ERROR: RISC-V toolchain not found; please install RISC-V toolchain"
    n_errors=$((n_errors + 1))
fi


# Add orionsim build directory to PATH
export PATH=$PATH:$ORION_HOME/sim/build/bin

echo "========== Environment Setup complete =========="
echo "ORION_HOME:           $ORION_HOME"
echo "VERILATOR_PATH:       $VERILATOR_PATH"
echo "RISCV_TOOLCHAIN_PATH: $RISCV_TOOLCHAIN_PATH"
echo "================================================"
if [ ${n_errors} -ne 0 ]; then
    echo "Warning: Some dependencies are missing. Please install them."
    return 1
fi