switch drivers in arch(nvidia,nouveau)

switch_drivers.sh

#!/bin/bash
BRANCH=-340xx # Enter a branch if needed, i.e. -340xx or -304xx
NVIDIA=nvidia${BRANCH} # If no branch entered above this would be "nvidia"
NOUVEAU=xf86-video-nouveau

# Replace -R with -Rs to if you want to remove the unneeded dependencies
if [ $(pacman -Qqs ^mesa-libgl$) ]; then
    pacman -S $NVIDIA ${NVIDIA}-libgl # Add lib32-${NVIDIA}-libgl and ${NVIDIA}-lts if needed
    # pacman -R $NOUVEAU
elif [ $(pacman -Qqs ^${NVIDIA}$) ]; then
    pacman -S --needed $NOUVEAU mesa-libgl # Add lib32-mesa-libgl if needed
    pacman -R $NVIDIA # Add ${NVIDIA}-lts if needed
fi