How to use the matchdep.filterDev function in matchdep

module.exports = function(grunt) {

	'use strict';
	
	var gruntfile = 'Gruntfile.js';
	var sources = ['src/<%= pkg.name %>.js'];
	
	md.filterDev('grunt-*').forEach(grunt.loadNpmTasks);
	
	// Project configuration.
	grunt.initConfig({
		pkg: grunt.file.readJSON('package.json'),
		meta: {
			banner: '/*! <%= pkg.title || pkg.name %> - v<%= pkg.version %> - ' +
			'<%= grunt.template.today("yyyy-mm-dd") %>\n' +
			'<%= pkg.homepage ? "* " + pkg.homepage + "\\n" : "" %>' +
			'* Copyright (c) 2013 Deux Huit Huit, Rik Lomas.\n' +
			'* Copyright (c) <%= grunt.template.today("yyyy") %> <%= pkg.author.name %> (<%= pkg.author.url %>);\n' +
			'* License <%= pkg.license %> http://deuxhuithuit.mit-license.org */'
		},
		concat: {
			options: {
				process: true,
				banner: '<%= meta.banner %>\n'

module.exports = function (grunt) {
    // load all grunt tasks
    require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

    // configurable paths
    var yeomanConfig = {
        app: 'app',
        dist: 'dist'
    };

    grunt.initConfig({
        yeoman: yeomanConfig,
        watch: {
            coffee: {
                files: ['<%= yeoman.app %>/scripts/{,*/}*.coffee'],
                tasks: ['coffee:dist']
            },
            coffeeTest: {
                files: ['test/spec/{,*/}*.coffee'],

module.exports = function (grunt) {
  // load all grunt tasks
  require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

  // configurable paths
  var yeomanConfig = {
    app: 'app',
    dist: 'dist'
  };

  // try {
  //   yeomanConfig.app = require('./bower.json').appPath || yeomanConfig.app;
  // } catch (e) {}

  grunt.initConfig({
    yeoman: yeomanConfig,
    watch: {
      coffee: {
        files: ['<%= yeoman.app %>/scripts/{,*/}*.coffee'],

module.exports = function(grunt) {
	// load all grunt tasks
  	require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);
    
    var pkg = grunt.file.readJSON('package.json');
    var banner = 

	grunt.initConfig({
		pkg: pkg,
		banner: '/**'+
 '* <%= pkg.description %>\n'+
 '* @author <%= pkg.author %>\n'+
 '* @version v<%= pkg.version %>\n'+
 '* @link <%= pkg.repository.url %>\n' +
 '* @license <%= pkg.license %>\n'+
 '*/',
 		bump: {
 			options: {
 				files: ['package.json', 'bower.json'],

module.exports = function (grunt) {
    // load all grunt tasks
    require('matchdep').filterDev('grunt-*').forEach(grunt.loadNpmTasks);

    // configurable paths
    var bastionConfig = {
        src: 'app/assets/javascripts/bastion',
        dist: 'dist'
    };

    try {
        bastionConfig.src = require('./bower.json').appPath || bastionConfig.src;
    } catch (e) {}

    grunt.initConfig({
        bastion: bastionConfig,
        bower: {
            update: {
                options: {

}
    }
  });

  grunt.event.on('watch', function(action, filepath) {
    console.log(action + ' - ' + filepath);
  });

  grunt.registerTask('open', function () {
    var url = 'http://localhost:3003';
    grunt.log.writeln('demo running at: ' + url);
    require('open')(url);
  });


  var plugins = require('matchdep').filterDev('grunt-*');
  plugins.forEach(grunt.loadNpmTasks);

  grunt.registerTask('default', []);
  grunt.registerTask('demo', ['http-server:demo', 'open', 'watch:ngTemplates']);

  grunt.event.once('http-server.demo.listening', function(host, port) {

  });
};

module.exports = function(grunt) {

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

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

        watch: {
            options : {
                livereload: true
            },
            source: {
                files: [
                    'src/*.js',
                    'src/*/*.js',
                    'Gruntfile.js'
                ],
                tasks: [ 'build:js' ]
            }

module.exports = function(grunt) {

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

  grunt.initConfig({
    temp: ".tmp",

    bump: {
      options: {
        files: ["package.json"],
        commit: true,
        commitMessage: "Release v%VERSION%",
        commitFiles: ["-a"],
        createTag: true,
        tagName: "v%VERSION%",
        tagMessage: "Version %VERSION%",
        push: true,
        pushTo: "origin",
        gitDescribeOptions: "--tags --always --abbrev=1 --dirty=-d"

grunt.initConfig({
    pkg: grunt.file.readJSON('package.json'),
    'nice-package': {
      all: {
        options: {}
      }
    },
    filenames: {
      options: {
        valid: 'dashes'
      },
      src: 'src/**/*.js'
    }
  });

  var plugins = require('matchdep').filterDev('grunt-*');
  plugins.forEach(grunt.loadNpmTasks);

  grunt.registerTask('default', ['nice-package', 'filenames']);
};

output.push.apply(output, f.src.map(grunt.file.read));
   
      output.push(grunt.template.process(
        'window.<%= namespace %> = requireModule("<%= barename %>");', { 
        data: {
          namespace: opts.namespace,
          barename: opts.barename
        }
      }));
      output.push('})(window);');
   
      grunt.file.write(f.dest, grunt.template.process(output.join("\n")));
    });
  });

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

  grunt.registerTask('default', "Build (in debug mode) & test your application.", ['build:debug', 'test']);
  grunt.registerTask('build',   [
                     'lock',
                     'clean',
                     'copy:prepare',
                     'transpile',
                     'jshint',
                     'copy:stage',
                     'emberTemplates',
                     'stylus',
                     'emblem',
                     'concat',
                     'browser',
                     'unlock' ]);