How to use the matchdep.filter function in matchdep

},
		bgShell: {
			compileDocumentation: {
				cmd: 'cd ../Documentation/_make; make html',
				bg: false
			},
			compileOmnigraffle: {
				cmd: 'cd ../Documentation/IntegratorGuide; rm -Rf Diagrams/; osascript ../../Scripts/export_from_omnigraffle.scpt png `pwd`/IntegratorDiagrams.graffle `pwd`/Diagrams'
			}
		}
	});

	/**
	 * Load and register tasks
	 */
	require('matchdep').filter('grunt-*').forEach(grunt.loadNpmTasks);

	// Empty task
	grunt.registerTask('_empty', function () {});

	/**
	 * Build commands for execution in the build pipeline
	 */
	grunt.registerTask('build', ['build-js', 'build-css']);
	grunt.registerTask('build-js', ['compile-js', 'requirejs:compile']);
	grunt.registerTask('build-css', ['compile-css', 'concat:css']);
	grunt.registerTask('build-docs', ['bgShell:compileOmnigraffle', 'bgShell:compileDocumentation']);

	/**
	 * Compile commands for development context
	 */
	grunt.registerTask('compile', ['compile-js', 'compile-css']);

module.exports = function (grunt) {
	var matchdep = require('matchdep'),
	    commonTasks

	matchdep.filter('grunt-*').forEach(grunt.loadNpmTasks)

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

		clean: {
			all: [
				'webroot/static',
				'webroot/views',
			],
		},
		compress: {
			all: {
				options: {
					mode: 'gzip',
				},
				files: [{

resolve.load = function(patterns, config) {
  return matchdep.filter(patterns, config).map(function(pattern) {
    return resolve.filepath(pattern);
  });
};

module.exports = function(grunt){

	require("matchdep").filterDev("grunt-*").forEach(grunt.loadNpmTasks);
	require("matchdep").filter("grunt-*").forEach(grunt.loadNpmTasks);

	grunt.initConfig({
		'copy': {
			'main': {
				files: [
					{expand: true, src: ['*.html'], flatten:true, dest:'public'}
				]
			},
			'build_appjs': {
				files: [{
					src: ['app/**/*.js'],
					dest: 'public',
					expand: true
				}]
			}
		},

flatten: true,
                cwd: 'src/coffee',
                src: ['*.coffee'],
                dest: 'build/js',
                ext: '.js'
            }
        },
        browserify : {
            vendor: {
                src: ['src/bin/js/app.js'],
                dest: 'src/bin/js/vendor.js'
            }
        }
    });

    require('matchdep').filter('grunt-*').forEach(grunt.loadNpmTasks);
    require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

    grunt.registerTask('compile', ['less','coffee']);
    grunt.registerTask('build', [ 'clean', 'copy:deps','browserify','copy:assets','mkdir:assets','compile']);
    grunt.registerTask('default', [ 'build' ]);
    grunt.registerTask('serve', [ 'server' ]);

};

module.exports = function (grunt) {
	var matchdep = require('matchdep'),
	    jsFiles,
	    stylFiles,
	    jadeFiles

	matchdep.filter('grunt-*').forEach(grunt.loadNpmTasks)

	jsFiles = {
		'webroot/static/js/main.js': [
			'app/assets/js/utils.js',
			'app/assets/js/main.js',
		],
	}
	stylFiles = [{
		'webroot/static/css/main.css': [
			'app/assets/styl/main.styl',
		],
	}]
	jadeFiles = [{
		expand: true,
		cwd: 'app/views',
		src: '**/*.jade',

target: {
				files: [{
					expand: true,
					cwd: path.join(packagePath, 'Resources/Public/Styles'),
					src: ['*.css', '!*.min.css'],
					dest: path.join(packagePath, 'Resources/Public/Styles'),
					ext: '.min.css'
				}]
			}
		}
	});

	/**
	 * Load and register tasks
	 */
	require('matchdep').filter('grunt-*').forEach(grunt.loadNpmTasks);

	/**
	 * Build commands for execution in the build pipeline
	 */
	grunt.registerTask('build', ['compass', 'cssmin']);
	grunt.registerTask('build:css', ['build']);
};