rustique_outdated is a wrapper for Rustique mod manager that lists which installed mods may be incompatible with a given version of Vintage Story.

rustique_outdated.fish

#!/bin/fish
# INSTALL: cp rustique_outdated.fish ~/.config/fish/functions/

set -l desc "rustique_outdated is a wrapper for Rustique mod manager that lists which installed mods may be incompatible with a given version of Vintage Story."
set -l desc_help "Print help"
set -l desc_mods_dir "(Optional) Specify the directory to manage mods. Defaults to Rustique's mod_dir."
set -l desc_game_version "(Optional) Specify the game version to manage. MAJOR.MINOR format is recommended e.g. '1.22'. Defaults to Rustique's pinned_game_version."

complete -c rustique_outdated -s h -l help -d "$desc_help"
complete -c rustique_outdated -s m -l mods-dir -d "$desc_mods_dir"
complete -c rustique_outdated -s g -l game-version -d "$desc_game_version"

function rustique_outdated
    argparse -S h/help 'm/mods-dir=!test' 'g/game-version=' -- $argv
    or return

    # -h/--help
    if set -ql _flag_h
        echo "$desc
$(set_color -u brblue && echo -n "Usage:" && set_color --reset brblue && echo -n " rustique_outdated" && set_color --reset) [OPTIONS]

$(set_color -ub brblue && echo -n "Options:" && set_color --reset brblue && set_color brblue)
  -m$(set_color --reset), $(set_color brblue)--mods-dir <MODS_DIR>$(set_color --reset)         $desc_mods_dir
  -g$(set_color --reset), $(set_color brblue)--game-version <GAME_VERSION>$(set_color --reset) $desc_game_version
  -h$(set_color --reset), $(set_color brblue)--help$(set_color --reset)                        $desc_help
"
    end

    set -l errorOccurred 0
    # ensure JQ is available to process JSON files
    if not [ -e $(which jq) ]
        echo "This function requires `jq` to work!"
        set errorOccurred 1
    end
    # ensure Grep is available to process other files
    if not [ -e $(which grep) ]
        echo "This function requires Grep to process non-JSON files!"
        set errorOccurred 1
    end
    [ $errorOccurred -gt 0 ] && return 1

    # cache the output of `rustique config list` so it is never executed more than once if at all.
    set -l rustiqueConfigList ''
    function __get_rustique_config_list
        [ -z "$rustiqueConfigList" ] || set rustiqueConfigList "$(rustique config list)"
        echo "$rustiqueConfigList"
    end

    # -m/--mods-dir
    set -l mods_dir ''
    set -ql _flag_m
    and set mods_dir $_flag_m[1]
    or set mods_dir $(grep -oP '(?<=mod_dir)' ~/.config/rustique/config.toml)
    or set mods_dir $(__get_rustique_config_list | grep -oP '(?<=mod_dir).+(?=│$)' | string trim)
    not [ -d mods_dir ]
    and set_color brred && echo 'Mods directory not found or not a directory!' && return 1

    # -g/--game-version
    set -l game_version ''
    set -ql _flag_g
    and set game_version $_flag_g[1]
    or set -l game_version $(grep -oP '(?<=pinned_game_version = ").+(?="$)' ~/.config/rustique/config.toml)
    or set -la game_version $(__get_rustique_config_list | grep -oP '(?<=pinned_game_version).+(?=│$)' | string trim)
    not echo $game_version | grep -Pq '\d+\.\d+'
    and set_color brred && echo 'No game version specified!' && return 1

    set -l syncFile "$mods_dir/rustique-sync.json"
    set -l outdatedFile "$mods_dir/rustique-outdated.json"

    # Process rustique-sync.json for mods which don't declare compatibility with $game_version
    set -l output "$(
      jq -rS -- "
        [
          .RustiqueSync as \$rs |
          \$rs |
          keys[] as \$k |
          \$rs.[\$k] |
          { mod_id: \$k, mod_name, file_name, installed_version, latest_known_version, game_versions}
        ] |
        map(
          select(
            .game_versions |
            all( contains(\"$game-version\") | not )
          )
        )
        " $syncFile
    )"

    [ "$status" != 0 ]
    and return $status
    or echo $output |
        # write detailed json output to rustique-outdated.json
        tee $outdatedFile |
        jq -rS -- '.[] | .mod_id'
end