#!/bin/bash

set -ex

# This script is used for reinstalling CUDA on Rocky Linux 8 with the run file.
# CUDA version is usually aligned with the latest NGC CUDA image tag.
# Only use when public CUDA image is not ready.
CUDA_VER="12.9.1_575.57.08"
CUDA_VER_SHORT="${CUDA_VER%_*}"

NVCC_VERSION_OUTPUT=$(nvcc --version)
OLD_CUDA_VER=$(echo $NVCC_VERSION_OUTPUT | grep -oP "\d+\.\d+" | head -n 1)
echo "The version of pre-installed CUDA is ${OLD_CUDA_VER}."

reinstall_rockylinux_cuda() {
    dnf -y install epel-release
    dnf remove -y "cuda*" "*cublas*" "*cufft*" "*cufile*" "*curand*" "*cusolver*" "*cusparse*" "*gds-tools*" "*npp*" "*nvjpeg*" "nsight*" "*nvvm*"
    rm -rf /usr/local/cuda-${OLD_CUDA_VER}
    wget -q https://developer.download.nvidia.com/compute/cuda/${CUDA_VER_SHORT}/local_installers/cuda_${CUDA_VER}_linux.run
    sh cuda_${CUDA_VER}_linux.run --silent --override --toolkit
    rm -f cuda_${CUDA_VER}_linux.run
}

# Install base packages depending on the base OS
ID=$(grep -oP '(?<=^ID=).+' /etc/os-release | tr -d '"')
case "$ID" in
  rocky)
    echo "Reinstall CUDA for RockyLinux 8..."
    reinstall_rockylinux_cuda
    ;;
  *)
    echo "Skip for other OS..."
    ;;
esac