Peacock update script

update.ts

// Requires Deno runtime, because Node is trash
// Install:
// 1. Put update.ts into peacock directory.
// 2. Create an empty version.txt file (IMPORTANT).

// Usage:
// 1. Turn off server/patcher (duh)
// 2. Run `deno run -A update.ts`

// How it works:
// It fetches latest release from peacock github and checks if the release tag mismatches contents of version.txt file.
// If it mismatches - downloads the lite variant of the release, unpacks it, and copies contents into main directory.
// Then it just saves the release tag and deletes unpacked dir/zip file.
// It requires version.txt to exist because for whatever reason Deno doesn't have "exists" check.
// Frankly should be fairly easy to reimplement in node-compatible way, but I can't be assed.

import * as zip from "https://deno.land/x/zip@v1.2.5/mod.ts";

async function recursiveCopy(path: string, to: string): Promise<unknown> {
  const promises: Promise<unknown>[] = [];
  for (const de of Deno.readDirSync(path)) {
    const fromPath = path + "/" + de.name;
    const toPath = to + "/" + de.name;
    if (de.isFile) {
      promises.push(Deno.copyFile(fromPath, toPath));
    } else {
      await Deno.mkdir(toPath, { recursive: true });
      promises.push(recursiveCopy(fromPath, toPath));
    }
  }
  return await Promise.all(promises);
}

async function main() {
  const data = await (await fetch("https://api.github.com/repos/thepeacockproject/Peacock/releases/latest")).json();
  const tag = data.tag_name;
  const lastTag = await Deno.readTextFile("version.txt");
  if (tag == lastTag) {
    console.log("Already on latest version!");
    return;
  }
  console.log(`Upgrading ${lastTag} -> ${tag}`);
  const liteAsset = data.assets.find(a => a.name.includes("-lite.zip"));
  if (!liteAsset) {
    console.log("ERROR: Couldn't find lite zip!");
    return;
  }
  await Deno.writeFile(liteAsset.name, await (await fetch(liteAsset.browser_download_url)).arrayBuffer());
  console.log("Unzipping...");
  await zip.decompress(liteAsset.name, ".");
  const dir = liteAsset.name.substring(0, liteAsset.name.indexOf(".zip"));
  console.log("Copying over...");
  await recursiveCopy(dir, ".");
  console.log("Cleaning up...");
  Deno.remove(liteAsset.name);
  Deno.remove(dir, { recursive: true });
  await Deno.writeTextFile("version.txt", tag);
  console.log("Done!");
}

await main();