Grunt.js file for development environment,

Grunt.js

'use strict';
module.exports = function (grunt) {
    var env = grunt.option('env') || 'dev';
    var testFile = grunt.option('file') || 'test/**/*.js';

    var banner = '/*\n<%= pkg.name %> <%= pkg.version %>';
    banner += '- <%= pkg.description %>\n<%= pkg.repository.url %>\n';
    banner += 'Built on <%= grunt.template.today("yyyy-mm-dd") %>\n*/\n';

    var globalConfig = {};

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

            },
            dev: {
                NODE_ENV: 'development'
            },
            prod: {
                NODE_ENV: 'production'
            }
        },
        watch: {
            options: {
                spawn: true,
            },
            files: ['gruntfile.js', 'app/**/*.js', 'app/config.js', 'test/**/*.js'],
            tasks: ['jshint', 'mochaTest']
        },
        jshint: {
            options: {
                force: true,
                reporter: require('jshint-stylish'),
                jshintrc: '.jshintrc'
            },
            files: {
                src: ['gruntfile.js', 'app/**/*.js', 'app/config.js', 'test/**/*.js']
            }
        },
        nodemon: {
            prod: {
                options: {
                    file: 'bin/cabin',
                    args: ['new', 'testsite'],
                    nodeArgs: ['--debug', '--debug-brk']
                }
            }
        },
        mochaTest: {
            test: {
                options: {
                    reporter: 'spec',
                    ignoreLeaks: false,
                    clearRequireCache: true,
                    colors: true
                },
                src: [testFile]
            },
        },
        shell: {
            debugtest: {
                options: {
                    stdout: true
                },
                command: 'mocha --debug-brk --recursive'
            },
            debugtestdev: {
                options: {
                    stdout: true
                },
                command: 'NODE_ENV=dev node --debug-brk $(which grunt) test'
            }
        },
        'node-inspector': {
            default: {}
        },
        concurrent: {
            test: ['shell:debugtest', 'node-inspector'],
            testdev: ['node-inspector', 'shell:debugtestdev'],
            options: {
                logConcurrentOutput: true
            }
        }
    });

    grunt.registerTask('spec', 'Runs a task on a specified file', function (fileName) {
        globalConfig.file = fileName;
        grunt.task.run('simplemocha:spec');
    });


    grunt.registerTask('debug', ['concurrent:test']);
    grunt.registerTask('test', ['mochaTest']);
    grunt.registerTask('default', ['watch']);

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