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import { ensureDir } from "https://deno.land/std@0.147.0/fs/mod.ts";import * as path from "https://deno.land/std@0.147.0/path/mod.ts";import {  fetchArchive,  GithubRepoNotFoundError,} from "../../misc/github/index.ts";import { iterFiles, stripComponents, unzip } from "../../misc/archive/zip.ts";import { getVersionsDir } from "./config.ts";
export default async function download(rev: string): Promise<void> {  try {    console.log(`Downloading ${rev}...`);    const res = await fetchArchive({      type: "zip",      user: "pbkit",      repo: "pbkit",      rev,    });    const zip = new Uint8Array(await res.arrayBuffer());    const files = stripComponents(await unzip(zip), 1);    const targetDir = path.resolve(getVersionsDir(), rev);    const promises = [];    for await (let { fileName, data } of iterFiles(files)) {      const filePath = path.resolve(targetDir, fileName);      promises.push(        ensureDir(path.dirname(filePath))          .then(() => Deno.writeFile(filePath, data)),      );    }    await Promise.all(promises);  } catch (err) {    if (err instanceof GithubRepoNotFoundError) {      console.error(`Version ${rev} not found.`);      Deno.exit(1);    } else {      throw err;    }  }}