[FEATURE] migrate open task to new structure

__old/modules/open.js

-'use strict';
-
-const open = require('opn');
-const yargs = require('yargs').argv;
-const settings = require('../../gulp/settings');
-const chalk = require('chalk');
-
-if (yargs._.length > 1) {
-	const config = settings.getConfig();
-	if (config.hasOwnProperty('open')) {
-		let sites = yargs._[1];
-		if (config.open.hasOwnProperty(sites)) {
-			let index = 0;
-			config.open[sites].forEach(site => {
-				setTimeout(() => {
-					open(site);
-				}, 100 * index++);
-			});
-		} else {
-			console.log(chalk.red(`The desired entry ${sites} could not be found in your .sgc-config.json!`));
-		}
-	} else {
-		console.log(chalk.red('You have currently no sites configured (set the "open" property inside your .sgc-config.json)!'));
-	}
-} else {
-	console.log(chalk.red('Please specify which site you want to open!'));
-}

core/settings.js

@@ -24,6 +24,7 @@ class Settings {
 			watch: () => {return require('./tasks/watch')},
 			server: () => {return require('./tasks/server')},
 			images: () => {return require('./tasks/images')},
+			open: () => {return require('./tasks/open')},
 			default: () => {return require('./tasks/default')}
 		};
 	}

core/tasks/open.js

+const Task = require('../task');
+const open = require('opn');
+const yargs = require('yargs').argv;
+const chalk = require('chalk');
+
+/**
+ * Opens a defined URL in the default browser
+ */
+module.exports = class Open extends Task {
+
+	/**
+	 * Runner function
+	 */
+	run() {
+		if (yargs._.length > 1) {
+			if (this._config.hasOwnProperty('open')) {
+				let sites = yargs._[1];
+				if (this._config.open.hasOwnProperty(sites)) {
+					let index = 0;
+					this._config.open[sites].forEach(site => {
+						setTimeout(() => {
+							open(site);
+						}, 100 * index++);
+					});
+				} else {
+					this._logger.error(`The desired entry ${chalk.bold(sites)} could not be found in your .sgc-config.json!`);
+				}
+			} else {
+				this._logger.error('You have currently no sites configured (set the "open" property inside your .sgc-config.json)!');
+			}
+		} else {
+			this._logger.error('Please specify which site you want to open!');
+		}
+	}
+
+}