gruntfile.js

module.exports = function(grunt) {
  "use strict";

  grunt.initConfig({
    copy: {
      build: {
        files: [
          {
            expand: true,
            cwd: "./public",
            src: ["**"],
            dest: "./dist/public"
          },
          {
            expand: true,
            cwd: "./views",
            src: ["**"],
            dest: "./dist/views"
          },
          // currently this is only start.js
          {
            expand: true,
            cwd: "./src",
            src: ["**/*.js"],
            dest: "./dist"
          },
          {
            src: "./package.prod.json",
            dest: "./dist/package.json"
          },
          {
            src: "./package-lock.json",
            dest: "./dist/package-lock.json"
          }
        ]
      }
    },
    ts: {
      app: {
        files: [{
          src: ["src/\*\*/\*.ts", "!src/.baseDir.ts"],
          dest: "./dist"
        }],
        options: {
          module: "commonjs",
          target: "es6",
          sourceMap: true,
          rootDir: "src",
          lib: ["es2015", "dom", "esnext"]
        }
      }
    },
    watch: {
      ts: {
        files: ["src/\*\*/\*.ts"],
        tasks: ["ts"]
      },
      views: {
        files: ["views/**/*.pug"],
        tasks: ["copy"]
      }
    }
  });

  grunt.loadNpmTasks("grunt-contrib-copy");
  grunt.loadNpmTasks("grunt-contrib-watch");
  grunt.loadNpmTasks("grunt-ts");

  grunt.registerTask("default", [
    "ts",
    "copy"
  ]);

};