Clean up pacman and paru cache (yay should work the same, change the name of the aur wrapper)

cleanup.sh

#!/bin/bash
set -euo pipefail

# Better safe than sorry
rm() {
   command rm -vI --preserve-root "$@"
}
export -f rm

pcachedir="/var/cache/pacman/pkg"
acachedir="$HOME/.cache/paru/clone"

echo "Cleaning pacman cache (keep 2 versions)..."
sudo paccache -rk2 -c "$pcachedir"

echo "Removing uninstalled pacman packages..."
sudo paccache -ruk0 -c "$pcachedir"

if [[ -d "$acachedir" ]]; then
    echo "Removing cache for uninstalled AUR packages..."
    fd -td -d1 . "$acachedir" --format '{/}' | rg -vxFf <(pacman -Qqm) | while read -r pkg; do
        echo "  Removing: $pkg"
        rm -rf "${acachedir:?}/$pkg"
    done

    echo "Cleaning AUR build artifacts..."
    fd -td -d1 . "$acachedir" | while read -r pkgdir; do
        rm -rf "$pkgdir/src"
        git -C "$pkgdir" clean -fqdx -e '*.pkg.tar*' 2>/dev/null
    done

    echo "Cleaning AUR cache (keep 2 versions)..."
    fd -td -d1 . "$acachedir" -x paccache -qrk2 -c {} \; 2>/dev/null
fi

echo "Cleanup complete."