Gruntfile.js

module.exports = function(grunt) {

	// Configuration 
	grunt.initConfig({
		pkg: grunt.file.readJSON('package.json'),
		shell: {
			patternlab: {
				command: "php core/builder.php -gp"
			}
        	},
  		watch: {
  			html: {
  				files: ['source/_patterns/**/*.mustache', 'source/_patterns/**/*.json', 'source/_data/*.json'],
  				tasks: ['shell:patternlab'],
  				options: {
  					spawn: false
  				}
  			}
  		}
	});

	// Plugins
	grunt.loadNpmTasks('grunt-contrib-watch');
	grunt.loadNpmTasks('grunt-shell');

	// Tasks
	grunt.registerTask('default', ['watch', 'shell:patternlab']);
};