Colorize and add a legend to listed drop-ins

Author: danielbachhuber

features/plugin-status.feature

@@ -0,0 +1,29 @@
+Feature: List the status of plugins
+
+  Scenario: Status should include drop-ins
+    Given a WP install
+    And a wp-debug.php file:
+      """
+      <?php
+      define( 'WP_DEBUG', true );
+      """
+    And a wp-cli.yml file:
+      """
+      require:
+        - wp-debug.php
+      """
+    And a wp-content/db-error.php file:
+      """
+      <?php
+      """
+
+    When I run `wp plugin status`
+    Then STDOUT should contain:
+      """
+      D db-error.php
+      """
+    And STDOUT should contain:
+      """
+      D = Drop-In
+      """
+    And STDERR should be empty

src/WP_CLI/CommandWithUpgrade.php

@@ -485,13 +485,15 @@ protected function get_update_info( $slug ) {
 			'active-network' => 'N',
 			'must-use' => 'M',
 			'parent' => 'P',
+			'dropin' => 'D',
 		),
 		'long' => array(
 			'inactive' => 'Inactive',
 			'active' => 'Active',
 			'active-network' => 'Network Active',
 			'must-use' => 'Must Use',
 			'parent' => 'Parent',
+			'dropin' => 'Drop-In',
 		)
 	);
 
@@ -506,6 +508,7 @@ private function get_color( $status ) {
 			'active-network' => '%g',
 			'must-use' => '%c',
 			'parent' => '%p',
+			'dropin' => '%B',
 		);
 
 		return $colors[ $status ];