Add plugin shell.

It symlinks / copies plugin's assests to app's webroot.

src/Shell/PluginShell.php

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+<?php
+/**
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * For full copyright and license information, please see the LICENSE.txt
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @since         3.0.0
+ * @license       http://www.opensource.org/licenses/mit-license.php MIT License
+ */
+namespace Cake\Shell;
+
+use Cake\Console\Shell;
+
+/**
+ * Shell for Plugin management.
+ *
+ */
+class PluginShell extends Shell {
+
+/**
+ * Contains tasks to load and instantiate
+ *
+ * @var array
+ */
+	public $tasks = ['SymlinkAssets'];
+
+/**
+ * Override main() for help message hook
+ *
+ * @return void
+ */
+	public function main() {
+		$this->out('<info>Plugin Shell</info>');
+		$this->hr();
+		$this->out('[S]ymlink / copy assets to app\'s webroot');
+		$this->out('[H]elp');
+		$this->out('[Q]uit');
+
+		$choice = strtolower($this->in('What would you like to do?', ['S', 'H', 'Q']));
+		switch ($choice) {
+			case 's':
+				$this->SymlinkAssets->main();
+				break;
+			case 'h':
+				$this->out($this->OptionParser->help());
+				break;
+			case 'q':
+				return $this->_stop();
+			default:
+				$this->out('You have made an invalid selection. Please choose a command to execute by entering S, H, or Q.');
+		}
+		$this->hr();
+		$this->main();
+	}
+
+/**
+ * Gets the option parser instance and configures it.
+ *
+ * @return \Cake\Console\ConsoleOptionParser
+ */
+	public function getOptionParser() {
+		$parser = parent::getOptionParser();
+
+		$parser->description(
+			'Plugin Shell symlinks your plugin assets to app\'s webroot.'
+		)->addSubcommand('symlink_assets', [
+			'help' => 'Symlink assets to app\'s webroot',
+			'parser' => $this->SymlinkAssets->getOptionParser()
+		]);
+
+		return $parser;
+	}
+
+}

src/Shell/Task/SymlinkAssetsTask.php

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+<?php
+/**
+ * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
+ * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * For full copyright and license information, please see the LICENSE.txt
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP(tm) Project
+ * @since         3.0.0
+ * @license       http://www.opensource.org/licenses/mit-license.php MIT License
+ */
+namespace Cake\Shell\Task;
+
+use Cake\Console\Shell;
+use Cake\Core\App;
+use Cake\Core\Plugin;
+use Cake\Filesystem\Folder;
+use Cake\Utility\Inflector;
+
+/**
+ * Language string extractor
+ *
+ */
+class SymlinkAssetsTask extends Shell {
+
+/**
+ * Execution method always used for tasks
+ *
+ * @return void
+ */
+	public function main() {
+		$this->_symlink();
+	}
+
+/**
+ * Symlink folder
+ *
+ * @return void
+ */
+	protected function _symlink() {
+		$this->out();
+		$this->out();
+		$this->out('Symlinking...');
+		$this->hr();
+		$plugins = Plugin::loaded();
+		foreach ($plugins as $plugin) {
+			$this->out('For plugin: ' . $plugin);
+			$this->out();
+
+			$link = Inflector::underscore($plugin);
+			$dir = WWW_ROOT;
+			if (file_exists($dir . $link)) {
+				$this->out($link . ' already exists');
+				$this->out();
+				continue;
+			}
+
+			if (strpos('/', $link) !== false) {
+				$parts = explode('/', $link);
+				$link = array_pop($parts);
+				$dir = WWW_ROOT . implode(DS, $parts) . DS;
+				if (!is_dir($dir)) {
+					$this->out('Creating directory: ' . $dir);
+					$this->out();
+					$old = umask(0);
+					mkdir($dir, 0755, true);
+					umask($old);
+				}
+			}
+
+			$path = Plugin::path($plugin) . 'webroot';
+			$this->out('Creating symlink: ' . $dir);
+			$this->out();
+			// @codingStandardsIgnoreStart
+			$result = @symlink($path, $dir . $link);
+			// @codingStandardsIgnoreEnd
+
+			if (!$result) {
+				$this->err('Symlink creation failed');
+				$this->out('Copying to directory:' . $dir);
+				$this->out();
+				$folder = new Folder($path);
+				$folder->copy(['to' => $dir . $link]);
+			}
+		}
+
+		$this->out();
+		$this->out('Done.');
+	}
+
+}

tests/TestCase/Shell/Task/SymlinkAssetsTaskTest.php

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+<?php
+/**
+ * CakePHP :  Rapid Development Framework (http://cakephp.org)
+ * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ *
+ * Licensed under The MIT License
+ * For full copyright and license information, please see the LICENSE.txt
+ * Redistributions of files must retain the above copyright notice.
+ *
+ * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
+ * @link          http://cakephp.org CakePHP Project
+ * @since         3.0.0
+ * @license       http://www.opensource.org/licenses/mit-license.php MIT License
+ */
+namespace Cake\Test\TestCase\Shell\Task;
+
+use Cake\Core\App;
+use Cake\Core\Configure;
+use Cake\Core\Plugin;
+use Cake\Filesystem\Folder;
+use Cake\Shell\Task\SymlinkAssetsTask;
+use Cake\TestSuite\TestCase;
+
+/**
+ * SymlinkAssetsTask class
+ *
+ */
+class SymlinkAssetsTaskTest extends TestCase {
+
+/**
+ * setUp method
+ *
+ * @return void
+ */
+	public function setUp() {
+		parent::setUp();
+		$this->io = $this->getMock('Cake\Console\ConsoleIo', [], [], '', false);
+
+		$this->Task = $this->getMock(
+			'Cake\Shell\Task\SymlinkAssetsTask',
+			array('in', 'out', 'err', '_stop'),
+			array($this->io)
+		);
+	}
+
+/**
+ * tearDown method
+ *
+ * @return void
+ */
+	public function tearDown() {
+		parent::tearDown();
+		unset($this->Task);
+		Plugin::unload();
+	}
+
+/**
+ * testExecute method
+ *
+ * @return void
+ */
+	public function testExecute() {
+		Plugin::load('TestPlugin');
+		Plugin::load('Company/TestPluginThree');
+
+		$this->Task->main();
+
+		$path = WWW_ROOT . 'test_plugin';
+		$link = new \SplFileInfo($path);
+		$this->assertTrue($link->isLink());
+		$this->assertTrue(file_exists($path . DS . 'root.js'));
+		unlink($path);
+
+		$path = WWW_ROOT . 'company' . DS . 'test_plugin_three';
+		$link = new \SplFileInfo($path);
+		$this->assertTrue($link->isLink());
+		$this->assertTrue(file_exists($path . DS . 'css' . DS . 'company.css'));
+		$folder = new Folder(WWW_ROOT . 'company');
+		$folder->delete();
+	}
+
+}