Adding support to the extract task to operate on a single plugin, thus removing the hassle of declaring the plugin path in command line

lib/Cake/Console/Command/Task/ExtractTask.php

@@ -126,6 +126,12 @@ class ExtractTask extends Shell {
 		}
 		if (isset($this->params['paths'])) {
 			$this->_paths = explode(',', $this->params['paths']);
+		} else if (isset($this->params['plugin'])) {
+			$plugin = Inflector::camelize($this->params['plugin']);
+			if (!CakePlugin::loaded($plugin)) {
+				CakePlugin::load($plugin);
+			}
+			$this->_paths = array(CakePlugin::path($plugin));
 		} else {
 			$defaultPath = APP;
 			$message = __d('cake_console', "What is the path you would like to extract?\n[Q]uit [D]one");
@@ -160,10 +166,12 @@ class ExtractTask extends Shell {
 
 		if (isset($this->params['output'])) {
 			$this->_output = $this->params['output'];
+		} else if (isset($this->params['plugin'])) {
+			$this->_output = $this->_paths[0] . DS . 'Locale';
 		} else {
-			$message = __d('cake_console', "What is the path you would like to output?\n[Q]uit", $this->_paths[0] . DS . 'locale');
+			$message = __d('cake_console', "What is the path you would like to output?\n[Q]uit", $this->_paths[0] . DS . 'Locale');
 			while (true) {
-				$response = $this->in($message, null, $this->_paths[0] . DS . 'locale');
+				$response = $this->in($message, null, $this->_paths[0] . DS . 'Locale');
 				if (strtoupper($response) === 'Q') {
 					$this->out(__d('cake_console', 'Extract Aborted'));
 					$this->_stop();
@@ -238,15 +246,18 @@ class ExtractTask extends Shell {
 			->addOption('exclude-plugins', array(
 				'boolean' => true,
 				'default' => true,
-				'help' => __d('cake_console', 'Ignores all files in plugins if this command is run inside from the same app directory')
+				'help' => __d('cake_console', 'Ignores all files in plugins if this command is run inside from the same app directory.')
+			))
+			->addOption('plugin', array(
+				'help' => __d('cake_console', 'Extracts tokens only from the plugin specified and puts the result in the plugin\'s Locale directory.')
 			))
 			->addOption('ignore-model-validation', array(
 				'boolean' => true,
 				'default' => false,
-				'help' => __d('cake_console', 'Ignores validation messages in the $validate property. If this flag is not set and the command is run from the same app directory, all messages in model validation rules will be extracted as tokens')
+				'help' => __d('cake_console', 'Ignores validation messages in the $validate property. If this flag is not set and the command is run from the same app directory, all messages in model validation rules will be extracted as tokens.')
 			))
 			->addOption('validation-domain', array(
-				'help' => __d('cake_console', 'If set to a value, the localization domain to be used for model validation messages')
+				'help' => __d('cake_console', 'If set to a value, the localization domain to be used for model validation messages.')
 			))
 			->addOption('exclude', array(
 				'help' => __d('cake_console', 'Comma separated list of directories to exclude. Any path containing a path segment with the provided values will be skipped. E.g. test,vendors')

lib/Cake/Test/Case/Console/Command/Task/ExtractTaskTest.php

@@ -227,7 +227,35 @@ class ExtractTaskTest extends CakeTestCase {
 
 		$this->Task->execute();
 		$result = file_get_contents($this->path . DS . 'default.pot');
-		$this->assertNoPattern('#TesPlugin#', $result);
+		$this->assertNoPattern('#TestPlugin#', $result);
+	}
+
+/**
+ * Test that is possible to extract messages form a single plugin
+ *
+ * @return void
+ */
+	public function testExtractPlugin() {
+		App::build(array(
+			'plugins' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS)
+		));
+
+		$this->out = $this->getMock('ConsoleOutput', array(), array(), '', false);
+		$this->in = $this->getMock('ConsoleInput', array(), array(), '', false);
+		$this->Task = $this->getMock('ExtractTask',
+			array('_isExtractingApp', '_extractValidationMessages', 'in', 'out', 'err', 'clear', '_stop'),
+			array($this->out, $this->out, $this->in)
+		);
+
+		$this->Task->params['output'] = $this->path . DS;
+		$this->Task->params['plugin'] = 'TestPlugin';
+
+		$this->Task->execute();
+		$result = file_get_contents($this->path . DS . 'default.pot');
+		$this->assertNoPattern('#Pages#', $result);
+		$this->assertContains('translate.ctp:1', $result);
+		$this->assertContains('This is a translatable string', $result);
+		CakePlugin::unload();
 	}
 
 /**