machine-config/factorio/install_mods.sh

#!/usr/bin/env nix-shell
#! nix-shell -i bash -p bash curl jq
mods="Krastorio2 Krastorio2Assets flib Big_Brother AtomicArtillery AutoDeconstruct nixie-tubes"
download_dir=./mods
username=$(cat ../keys.toml | grep factorio-username | cut -d'"' -f2)
token=$(cat ../keys.toml | grep factorio-token | cut -d'"' -f2)
for mod in $mods; do
    mod_data=$(curl -s https://mods.factorio.com/api/mods/$mod)
    download_url=$(<<<$mod_data jq -r ".releases[-1].download_url")
    file_name=$(<<<$mod_data jq -r ".releases[-1].file_name")
    sha1=$(<<<$mod_data jq -r ".releases[-1].sha1")
    if [ -f $download_dir/$file_name ]; then
        current_sha1=$(sha1sum $download_dir/$file_name | awk '{print $1}')
        if [[ $current_sha1 = $sha1 ]]; then
            continue
        else
        echo $current_sha1 $sha1
            >&2 echo "Checksum mismatch; re-downloading"
        fi
    fi
    curl --location --output $download_dir/$file_name "https://mods.factorio.com/$download_url?username=$username&token=$token"
done