Gruntfile.js

'use strict';
module.exports=function(grunt){
	require('time-grunt')(grunt);
	require('jit-grunt')(grunt, {
  useminPrepare: 'grunt-usemin'
});
	grunt.initConfig({
		sass:{
			dist:{
				files:{
					'css/style.css': 'css/style.scss'
				}
			}
		},
		watch:{
			files: 'css/*.scss', 
			tasks: ['sass']
		},
		browserSync:{
			dev:{
				bsFiles:{
					src: [
					'css/*.css',
					'*.html',
					'JavaScript/*.js'
					]
				},
				options:{
					watchTask: true,
					server: {
						baseDir: './'
					}
				}
			}
		},
		copy: {
			html:{
				files: [{
					expand: true,
					dot: true,
					cwd: './',
					src: ['*.html'],
					dest: 'dist'
				}]
			},
			fonts: {
				files: [{
					expand: true,
					dot: true,
					cwd: 'node_modules/font-awesome',
					src: ['fonts/*.*'],
					dest: 'dist'
				}]
			}
		},
		clean: {
			build: {
				src: ['dist/']
			}
		},
		imagemin: {
			dynamic: {
				files: [{
					expand: true,
					dot: true,
					cwd: './',
					src: ['src/*.{png,jpg,gif}'],
					dest: 'dist/'
				}]
			}
		},
		useminPrepare: {
			foo: {
				dest: 'dist',
				src: ['contactus.html', 'aboutus.html', 'index.html']
			},
			options: {
				flow: {
					steps:{
						css: ['cssmin'],
						js: ['uglify']
					},
					post: {
						css: [{
							name: 'cssmin',
							createConfig: function (context, block){
								var generated = context.options.generated;
								generated.options ={
									keepSpeacialComments: 0, rebase: false
								};
							}
						}]
					}
				}
			}
		},
		concat: {
			options: {
				seperator: ';'
			},
			dist: {

			}
		},
		uglify: {
			dist: {}
		},
		cssmin: {
			dist: {}
		},
		filerev: {
			options: {
				encoding: 'utf8',
				algorithm: 'md5',
				length: 20
			},
			release: {
				files: [{
					src: [
					'dist/JavaScript/*.js',
					'dist/css/*.css']
				}]
			}
		},
		usemin: {
			html: ['dist/contactus.html','dist/aboutus.html','dist/index.html'],
			options: {
				assetsDirs: ['dist','dist/css','dist/JavaScript']
			}
		},
		htmlmin: {                                         // Task
            dist: {                                        // Target
                options: {                                 // Target options
                	collapseWhitespace: true
                },
                files: {                                   // Dictionary of files
                    'dist/index.html': 'dist/index.html',  // 'destination': 'source'
                    'dist/contactus.html': 'dist/contactus.html',
                    'dist/aboutus.html': 'dist/aboutus.html',
                }
            }
        }
    });

	grunt.registerTask('css', ['sass']);
	grunt.registerTask('default', ['browserSync', 'watch']);
	grunt.registerTask('build', [
        'clean',
        'copy',
        'imagemin',
        'useminPrepare',
        'concat',
        'cssmin',
        'uglify',
        'filerev',
        'usemin',
        'htmlmin'
    ]);
};