best grunt file

Gruntfile.js

module.exports = function(grunt) {

  // Project configuration.
  grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    copy: {
      main: {
        files: [{
          expand: true,
          cwd: './partials/',
          src: ['**/*'],
          dest: 'build/partials'
        }, {
          expand: true,
          cwd: './',
          src: ['index.html'],
          dest: 'build/'
        }, {
          expand: true,
          cwd: './vendor',
          src: ['**/*js', '*/*js'],
          dest: 'build/vendor'
        }, {
          expand: true,
          cwd: './css/',
          src: ['**/*'],
          dest: 'build/css/'
        }, {
          expand: true,
          cwd: './img/',
          src: ['**/*'],
          dest: 'build/img/'
        }]
      }
    },
    requirejs: {
      compile: {
        options: grunt.file.readJSON('build-config.json')
      }
    },
    ngmin: {
      files: {
        src: 'build/js/main-src.js',
        dest: 'build/js/main-src.js'
      }
    },
    uglify: {
      main: {
        options: {
          mangle: false,
          report: 'min',
          sourceMappingURL: './source-map.js',
          sourceMap: 'build/js/source-map.js'
        },
        files: {
          'build/js/main.js': ['build/js/main-src.js']
        }
      }
    },
    htmlmin: { // Task
      dist: { // Target
        options: { // Target options
          removeComments: true,
          collapseWhitespace: true
        },
        files: [{
          expand: true,
          cwd: './partials/',
          src: ['**/*'],
          dest: 'build/partials'
        }, { // Dictionary of files
          'build/index.html': 'index.html', // 'destination': 'source'
        }]
      }
    },
    watch: {
      html: {
        // files: ['*.html'],
        files : ['**/*html', 'css/*css'],
        options: {
          // Start a live reload server on the default port 35729
          livereload: true,
        },
      },
      scripts: {
        files: ['js/*.js', 'js/**/*.js'],
        tasks: [],
        options: {
          interrupt: true
        }
      },
    },
    prettify: {
      options: {
      },
      html: {
        files: [ {'index.html' : 'index.html'},
          {
            expand: true,
            cwd: './partials/',
            src: ['**/*html'],
            dest: 'partials'
          }
        ]
      }
    },
    "jsbeautifier" : {
        "default": {
            src : ["js/**/*.js"]
        },
        "git-pre-commit": {
            src : ["js/**/*.js"],
            options : {
                mode:"VERIFY_ONLY"
            }
        }
    }

  });

  // build build directory
  grunt.loadNpmTasks('grunt-contrib-copy');

  // minify js
  grunt.loadNpmTasks('grunt-contrib-requirejs');
  grunt.loadNpmTasks('grunt-contrib-uglify');
  grunt.loadNpmTasks('grunt-ngmin')

  // minify html
  grunt.loadNpmTasks('grunt-contrib-htmlmin');

  // watch constantly
  grunt.loadNpmTasks('grunt-contrib-watch');

  //beautify
  grunt.loadNpmTasks('grunt-prettify');
  grunt.loadNpmTasks('grunt-jsbeautifier');

  grunt.registerTask('build-js', ['copy', 'requirejs', 'ngmin', 'uglify']);
  grunt.registerTask('build-html', ['htmlmin']);
  grunt.registerTask('build', ['build-js', 'build-html']);

  grunt.registerTask('default', ['build']);

};