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import { ensureDir, ensureFile, fromStreamReader, gzipDecode, path, Untar } from '../deps.ts'import util from '../util.ts'
export const helpMessage = `Initiate a new aleph app.
Usage:    aleph init <dir> [...options]
<dir> represents the directory of the aleph app,if the <dir> is empty, the current directory will be used.
Options:    -h, --help  Prints help message`
export default async function (appDir: string, options: Record<string, string | boolean>) {    const rev = 'master'    const resp = await fetch('https://codeload.github.com/postui/alephjs-templates/tar.gz/' + rev)    const gzData = await Deno.readAll(fromStreamReader(resp.body!.getReader()))    const tarData = gzipDecode(gzData)    const entryList = new Untar(new Deno.Buffer(tarData))
    // todo: add template select ui    let template = 'hello-world'    for await (const entry of entryList) {        if (entry.fileName.startsWith(`alephjs-templates-${rev}/${template}/`)) {            const fp = path.join(appDir, util.trimPrefix(entry.fileName, `alephjs-templates-${rev}/${template}/`))            if (entry.type === 'directory') {                await ensureDir(fp)                continue            }            await ensureFile(fp)            const file = await Deno.open(fp, { write: true })            await Deno.copy(entry, file)        }    }    Deno.exit(0)}