steamcmd-app-update/index.js

#!/usr/bin/env node

const STEAM_API_KEY = process.env.STEAM_API_KEY;

if (!STEAM_API_KEY) {
  console.error(
    "The STEAM_API_KEY environment variale should contain your Steam API key."
  );
  console.error("See: https://steamcommunity.com/dev/apikey");
  process.exit(1);
}

const steam = new (require("steamapi"))(STEAM_API_KEY);

const STEAM_PROFILE_ID = process.env.STEAM_PROFILE_ID;

if (!STEAM_PROFILE_ID) {
  console.error("The STEAM_PROFILE_ID environment variable is required.");
  process.exit(1);
}

const skipGames = [];

if (process.env.SKIP_GAMES) {
  process.env.SKIP_GAMES.split(",")
    .map((game) => game.trim())
    .forEach((game) => {
      skipGames.push(game);
    });
}

function shouldSkip(gameId, gameTitle) {
  return (
    // We could be comparing strings against numbers here, that's fine
    skipGames.find((game) => game == gameId || game == gameTitle) !== undefined
  );
}

const shouldValidate = !!process.env.FORCE_VALIDATE;

steam.getUserOwnedGames(STEAM_PROFILE_ID).then((games) =>
  games
    .filter((game) => !shouldSkip(game.appID, game.name))
    .sort((a, b) => a.appID - b.appID)
    .forEach((game) => {
      console.log(
        `// ${game.name} - https://store.steampowered.com/app/${game.appID}`
      );
      console.log(
        `app_update ${game.appID}${shouldValidate ? " -validate" : ""}`
      );
    })
);