Adding required argument checking.

cake/console/console_option_parser.php

@@ -28,12 +28,36 @@
  */
 class ConsoleOptionParser {
 
+/**
+ * Description text - displays before options when help is generated
+ *
+ * @see ConsoleOptionParser::description()
+ * @var string
+ */
 	protected $_description = null;
 
+/**
+ * Epilog text - displays after options when help is generated
+ *
+ * @see ConsoleOptionParser::epilog()
+ * @var string
+ */
 	protected $_epilog = null;
 
+/**
+ * Option definitions.
+ *
+ * @see ConsoleOptionParser::addOption()
+ * @var array
+ */	
 	protected $_options = array();
 
+/**
+ * Positional argument definitions.
+ *
+ * @see ConsoleOptionParser::addArgument()
+ * @var array
+ */
 	protected $_args = array();
 
 /**
@@ -195,6 +219,13 @@ class ConsoleOptionParser {
 				$args = $this->_parseArg($token, $args);
 			}
 		}
+		foreach ($this->_args as $i => $arg) {
+			if ($arg['required'] && !isset($args[$i])) {
+				throw new RuntimeException(
+					sprintf(__('Missing required arguments. %s is required.'), $arg['name'])
+				);
+			}
+		}
 		return array($params, $args);
 	}
 

cake/tests/cases/console/console_option_parser.test.php

@@ -197,7 +197,7 @@ class ConsoleOptionParserTest extends CakeTestCase {
  * @expectedException InvalidArgumentException
  * @return void
  */
-	function testParseArgument() {
+	function testParseArgumentTooMany() {
 		$parser = new ConsoleOptionParser();
 		$parser->addArgument('name', array('help' => 'An argument'))
 			->addArgument('other');
@@ -208,4 +208,18 @@ class ConsoleOptionParserTest extends CakeTestCase {
 
 		$result = $parser->parse(array('one', 'two', 'three'));
 	}
+
+/**
+ * test that when there are not enough arguments an exception is raised
+ *
+ * @expectedException RuntimeException
+ * @return void
+ */
+	function testPositionalArgNotEnough() {
+		$parser = new ConsoleOptionParser();
+		$parser->addArgument('name', array('required' => true))
+			->addArgument('other', array('required' => true));
+
+		$parser->parse(array('one'));
+	}
 }