bin.js

#!/usr/bin/env node

const summary = require('server-summary');
const cliclopts = require('cliclopts');
const router = require('./docs-build');
const minimist = require('minimist');
const assert = require('assert');
const http = require('http');
const url = require('url');

const copts = cliclopts([
  {
    name: 'port',
    abbr: 'p',
    default: 1337,
    help: 'port for the server to listen on'
  }
]);

const argv = minimist(process.argv.slice(2), copts.options());
const cmd = argv._[0];

// help
if (argv.help || !cmd) {
  console.log('Usage: command [options]');
  copts.print();
  process.exit();
}

// listen
if (cmd === 'listen' || cmd === 'server') {
  server().listen(argv.port, summary);
}

// build
if (cmd === 'build') {
  router.build(__dirname + '/build', function (err, res) {
    if (err) {
      console.log('error:', err);
      process.exit(1);
    }
    process.exit();
  });
}

// create a server
// null -> null
function server () {
  return http.createServer(function (req, res) {
    const pathname = url.parse(req.url).pathname;
    router.match(pathname, function (err, body) {
      assert.ifError(err);
      res.end(body);
    });
  });
}