Gruntfile, dynamically loading tasks

gruntfile.js

module.exports = function( grunt ){

    var sourceFiles = [ 's-code.js', 's-code-page.js'];

	grunt.initConfig({
		pkg : grunt.file.readJSON( 'package.json' ),

		uglify : {
			all : {
				files : {
					's-code.min.<%= pkg.version %>.js' : sourceFiles
				}
			}
		},
		jasmine : {
			unmodified : {
				src : sourceFiles,
				options : {
					specs : [ '**test/spec/*.js' ]
				}
			},
			min : {
				src : [ 's-code.min.<% pkg.version %>.js' ],
				options : {
					specs : [ '**test/spec/*.js' ]
				}
			}
		},
		clean : {
			build : {
				src : [ 's-code.min**.js' ]
			}
		}
	});

	//dynamically load tasks
	require( 'matchdep' ).filterDev( 'grunt-*' ).forEach( grunt.loadNpmTasks );

	grunt.registerTask( 'default', ['jasmine:unmodified:build', 'clean', 'uglify', 'jasmine:min:build']);
};