Sample_Gruntfile.js

module.exports = function (grunt) {
  grunt.initConfig({
    // jshint: {
    //   browser: ["public/js/**/*.js"],
    //   },
    jshint: {
      client: ["public/js/**/*.js", "!public/js/vendor"],
    },
    // less: {
    //   compile: {
    //     files: {
    //       "build/css/compiled.css": [
    //         "public/css/layout.less",
    //         "public/css/components.less",
    //         "public/css/views/foo.less",
    //         "public/css/views/bar.less",
    //       ],
    //     },
    //   },
    // },
    less: {
      compile: {
        files: {
          "build/css/compiled.css": "public/css/**/*.less",
        },
      },
    },
    concat: {
      js: {
        files: {
          "build/js/bundle.js": "src/**/*.js",
        },
      },
    },
    // uglify: {
    //   cobra: {
    //     files: {
    //       "build/js/cobra.min.jss": "build/js/bundle.js",
    //     },
    //   },
    // },
    uglify: {
      bundle: {
        files: {
          "build/js/bundle.min.js": "build/js/bundle.js",
        },
      },
    },
    sprite: {
      icons: {
        src: "public/img/icons/*.png",
        destImg: "build/img/icons.png",
        destCSS: "build/css/icons.css",
      },
    },
    clean: {
      js: "build/js",
      css: "build/css",
      less: "public/**/*.css",
    },
    timestamp: {
      options: {
        file: "build/timestamp.js",
      },
    },
  });
  grunt.loadNpmTasks("grunt-contrib-jshint");
  grunt.loadNpmTasks("grunt-contrib-concat");
  grunt.loadNpmTasks("grunt-contrib-less");
  grunt.loadNpmTasks("grunt-contrib-uglify");
  grunt.loadNpmTasks("grunt-spritesmith");
  grunt.loadNpmTasks("grunt-contrib-clean");
  grunt.registerTask("default", ["jshint"]);
  grunt.registerTask(
    "jstasks",
    "Concatenate and minify static JavaScript assets",
    ["concat:js", "uglify:bundle"]
  );
  grunt.registerTask("timestamp", function () {
    let options = this.options({
      file: ".timestamp",
    });
    let timestamp = new Date();
    let contents = timestamp.toString();
    grunt.file.write(options.file, contents);
  });
};