New command to list namespaces in app.

system/Commands/Namespaces.php

@@ -0,0 +1,123 @@
+<?php namespace CodeIgniter\Commands;
+
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP
+ *
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014-2018 British Columbia Institute of Technology
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @package	CodeIgniter
+ * @author	CodeIgniter Dev Team
+ * @copyright	2014-2018 British Columbia Institute of Technology (https://bcit.ca/)
+ * @license	https://opensource.org/licenses/MIT	MIT License
+ * @link	https://codeigniter.com
+ * @since	Version 3.0.0
+ * @filesource
+ */
+use CodeIgniter\CLI\BaseCommand;
+use CodeIgniter\CLI\CLI;
+use Config\Autoload;
+
+/**
+ * Lists namespaces set in Config\Autoload with their
+ * full server path. Helps you to verify that you have
+ * the namespaces setup correctly.
+ *
+ * @package CodeIgniter\Commands
+ */
+class Namespaces extends BaseCommand
+{
+
+	/**
+	 * The group the command is lumped under
+	 * when listing commands.
+	 *
+	 * @var string
+	 */
+	protected $group = 'CodeIgniter';
+
+	/**
+	 * The Command's name
+	 *
+	 * @var string
+	 */
+	protected $name = 'namespaces';
+
+	/**
+	 * the Command's short description
+	 *
+	 * @var string
+	 */
+	protected $description = 'Verifies your namespaces are setup correctly.';
+
+	/**
+	 * the Command's usage
+	 *
+	 * @var string
+	 */
+	protected $usage = 'namespaces';
+
+	/**
+	 * the Command's Arguments
+	 *
+	 * @var array
+	 */
+	protected $arguments = [];
+
+	/**
+	 * the Command's Options
+	 *
+	 * @var array
+	 */
+	protected $options = [];
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Displays the help for the spark cli script itself.
+	 *
+	 * @param array $params
+	 */
+	public function run(array $params)
+	{
+		$config = new Autoload();
+
+		$tbody = [];
+		foreach ($config->psr4 as $ns => $path)
+		{
+			$path = realpath($path) ?? $path;
+
+			$tbody[] = [
+				$ns,
+				realpath($path) ?? $path,
+				is_dir($path) ? "Yes" : "MISSING"
+			];
+		}
+
+		$thead = ['Namespace', 'Path', 'Found?'];
+
+		CLI::table($tbody, $thead);
+	}
+
+}