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import { colors } from '../deps.ts'import { VERSION } from '../version.ts'
export const helpMessage = `Usage:    aleph upgrade
Options:    -v, --version <version>  The upgrading version    -h, --help               Prints help message`
export default async function (version: string) {  console.log('Looking up latest version...')  const metaUrl = 'https://cdn.deno.land/aleph/meta/versions.json'  const { latest, versions } = await (await fetch(metaUrl)).json()  if (version === 'latest') {    version = latest  } else if (!versions.includes(version)) {    version = 'v' + version    if (!versions.includes(version)) {      console.log(`${colors.red('error')}: version(${version}) not found!`)      Deno.exit(1)    }  }  if (version === 'v' + VERSION) {    console.log('Already up-to-date!')    Deno.exit(0)  }  const p = Deno.run({    cmd: [Deno.execPath(), 'install', '-A', '-f', '--location', 'http://localhost', '-n', 'aleph', `https://deno.land/x/aleph@${version}/cli.ts`],    stdout: 'null',    stderr: 'piped'  })  Deno.stderr.write(await p.stderrOutput())  console.log(`Aleph.js is up to ${version}!`)  p.close()  Deno.exit(0)}