set_cuda_envs.sh

#!/usr/bin/env bash

if [ "${CU_VERSION:-}" == "cpu" ] ; then
    exit 0
fi

if [[ ${#CU_VERSION} -eq 5 ]]; then
    CUDA_VERSION="${CU_VERSION:2:2}.${CU_VERSION:4:1}"
fi

# It's a log to see if CU_VERSION exists, if not, we use environment CUDA_VERSION directly
# in unittest_windows_gpu, there's no CU_VERSION, but CUDA_VERSION.
echo "Using CUDA $CUDA_VERSION, CU_VERSION is $CU_VERSION now"

version=$CUDA_VERSION

# set cuda envs
export PATH="/c/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v${version}/bin:/c/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v${version}/libnvvp:$PATH"
export CUDA_PATH_V${version/./_}="C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v${version}"
export CUDA_PATH="C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v${version}"

if  [ ! -d "$CUDA_PATH" ]
then
    echo "$CUDA_PATH" does not exist
    exit 1
fi

# check cuda driver version
for path in '/c/Program Files/NVIDIA Corporation/NVSMI/nvidia-smi.exe' /c/Windows/System32/nvidia-smi.exe; do
    if [[ -x "$path" ]]; then
        "$path" || echo "true";
        break
    fi
done
which nvcc