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import { resolve } from 'https://deno.land/std@0.106.0/path/mod.ts'import { existsDir } from '../shared/fs.ts'import { Aleph } from '../server/aleph.ts'import { serve } from '../server/mod.ts'import { getFlag, parse, parsePortNumber } from './helper/flags.ts'import log from '../shared/log.ts'
export const helpMessage = `Usage:    aleph start <dir> [...options]
<dir> represents the directory of Aleph.js app,if the <dir> is empty, the current directory will be used.
Options:    -p, --port      <port>       A port number to start the aleph.js app, default is 8080        --hostname  <hostname>   The address at which the server is to be started        --tls-cert  <cert-file>  The server certificate file        --tls-key   <key-file>   The server public key file    -L, --log-level <log-level>  Set log level [possible values: debug, info]    -r, --reload                 Reload source code cache    -h, --help                   Prints help message`
if (import.meta.main) {  const { args, options } = parse()
  // check working dir  const workingDir = resolve(String(args[0] || '.'))  if (!await existsDir(workingDir)) {    log.fatal('No such directory:', workingDir)  }
  const aleph = new Aleph(workingDir, 'production', Boolean(options.r || options.reload))  const port = parsePortNumber(getFlag(options, ['p', 'port'], '8080'))  const hostname = getFlag(options, ['hostname'])  const certFile = getFlag(options, ['tls-cert'])  const keyFile = getFlag(options, ['tls-key'])  if (keyFile !== undefined && certFile === undefined) {    log.fatal('missing `--tls-cert` option')  } else if (certFile !== undefined && keyFile === undefined) {    log.fatal('missing `--tls-key` option')  }  await serve({ aleph, port, hostname, certFile, keyFile })}