Gruntfile for profileing the project building

Gruntfile-Profiling.js

module.exports = function (grunt) {

  // ignore other code only the related code to profile your build is there
  grunt.loadNpmTasks('grunt-ng-constant');

  // Define the configuration for all the tasks
  grunt.initConfig({
    // irrevalant code omitted
    ngconstant: {
      options: {
        space: '  ',
        wrap: '"use strict";\n\n {%= __ngModule %}',
        name: 'config'
      },
      // Environment targets
      development: {
        options: {
          dest: '<%= yeoman.app %>/scripts/config.js'
        },
        constants: {
          ENV: {
            name: 'development',
            // add your environment related value here
          }
        }
      },
      testing: {
        options: {
          dest: '<%= yeoman.app %>/scripts/config.js'
        },
        constants: {
          ENV: {
            name: 'testing',
            // add your environment related value here
          }
        }
      },
      production: {
        options: {
          dest: '<%= yeoman.app %>/scripts/config.js'
        },
        constants: {
          ENV: {
            name: 'production',
            // add your environment related value here
          }
        }
      }
    },
  });
  grunt.registerTask('serve', 'Compile then start a connect web server', function (environment) {
    if (environment !== undefined) {
      return grunt.task.run(['build:'+environment, 'connect:dist:keepalive']);
    }
    grunt.task.run([
      'clean:server',
      'wiredep',
      'bowercopy',
      'concurrent:server',
      'postcss:server',
      'connect:livereload',    // this automatically open the web app on browserx
      'watch'
    ]);
  });

  grunt.registerTask('server', 'DEPRECATED TASK. Use the "serve" task instead', function (target) {
    grunt.log.warn('The `server` task has been deprecated. Use `grunt serve` to start a server.');
    grunt.task.run(['serve:' + target]);
  });

  grunt.registerTask('build', 'Compile and build for environment provided', function(environment) {

    if (environment === undefined) {
      environment = "development";
    }

    console.log("build for development environment");
    grunt.task.run([
      'clean:dist',
      'ngconstant:'+environment, // development, testing, production
     // omitted code from here
    ]);

  });

  grunt.registerTask('default', [
    'newer:jshint',
    'newer:jscs',
    'test',
    'build'
  ]);
};

to run use this command grunt clean build:development, grunt clean serve:development. Available values are "development", "testing", "production"