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import { colors } from '../std.ts'
export const helpMessage = `Usage:    aleph upgrade
Options:    -v, --version <version>  The version to upgrade to    -h, --help               Prints help message`
async function run(...cmd: string[]) {    const p = Deno.run({        cmd,        stdout: 'piped',        stderr: 'piped'    })    Deno.stdout.write(await p.output())    Deno.stderr.write(await p.stderrOutput())    p.close()}
export default async function (version: string) {    const { latest, versions } = await (await fetch('https://cdn.deno.land/aleph/meta/versions.json')).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)        }    }    await run('deno', 'install', '-A', '-f', '-n', 'aleph', `https://deno.land/x/aleph@${version}/cli.ts`)    Deno.exit(0)}