Gruntfile.js

'use strict';

var request = require('request');

module.exports = function (grunt) {
  // show elapsed time at the end
  require('time-grunt')(grunt);
  // load all grunt tasks
  require('load-grunt-tasks')(grunt);

  var reloadPort = 35729, files;

  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    develop: {
      server: {
        file: 'app.js'
      }
    },
    less: {
      dist: {
        files: {
          'public/css/style.css': 'public/css/*.less'
        }
      }
    },
    ts: {
      default: {
        files: [{ src: ['client/app/**/*.ts'], dest: 'public/js/app' }],
        tsconfig: 'client/tsconfig.json'
      }
    },
    watch: {
      options: {
        nospawn: true,
        livereload: reloadPort
      },
      js: {
        files: [
          'app.js',
          'app/**/*.js',
          'config/*.js'
        ],
        tasks: ['develop', 'delayed-livereload']
      },
      client: {
        files: [
          'client/**/*.ts'
        ],
        tasks: ['ts']
      },
      css: {
        files: [
          'public/css/*.less'
        ],
        tasks: ['less'],
        options: {
          livereload: reloadPort
        }
      },
      views: {
        files: [
          'app/views/*.swig',
          'app/views/**/*.swig'
        ],
        options: { livereload: reloadPort },
      },
    },
  });

  grunt.config.requires('watch.js.files');
  files = grunt.config('watch.js.files');
  files = grunt.file.expand(files);

  grunt.registerTask('delayed-livereload', 'Live reload after the node server has restarted.', function () {
    var done = this.async();
    setTimeout(function () {
      request.get('http://localhost:' + reloadPort + '/changed?files=' + files.join(','), function (err, res) {
        var reloaded = !err && res.statusCode === 200;
        if (reloaded)
          grunt.log.ok('Delayed live reload successful.');
        else
          grunt.log.error('Unable to make a delayed live reload.');
        done(reloaded);
      });
    }, 500);
  });

  grunt.registerTask('default', [
    'less',
    'ts',
    'develop',
    'watch'
  ]);
};