PHPStan level 6

composer.json

@@ -20,14 +20,15 @@
         "wp-cli/extension-command": "^1.2 || ^2",
         "wp-cli/media-command": "^1.1 || ^2",
         "wp-cli/super-admin-command": "^1 || ^2",
-        "wp-cli/wp-cli-tests": "^4"
+        "wp-cli/wp-cli-tests": "dev-main"
     },
     "config": {
         "process-timeout": 7200,
         "sort-packages": true,
         "allow-plugins": {
             "dealerdirect/phpcodesniffer-composer-installer": true,
-            "johnpbloch/wordpress-core-installer": true
+            "johnpbloch/wordpress-core-installer": true,
+            "phpstan/extension-installer": true
         },
         "lock": false
     },
@@ -230,12 +231,14 @@
         "behat-rerun": "rerun-behat-tests",
         "lint": "run-linter-tests",
         "phpcs": "run-phpcs-tests",
+        "phpstan": "run-phpstan-tests",
         "phpunit": "run-php-unit-tests",
         "phpcbf": "run-phpcbf-cleanup",
         "prepare-tests": "install-package-tests",
         "test": [
             "@lint",
             "@phpcs",
+            "@phpstan",
             "@phpunit",
             "@behat"
         ]

entity-command.php

@@ -60,17 +60,7 @@
 );
 WP_CLI::add_command( 'taxonomy', 'Taxonomy_Command' );
 WP_CLI::add_command( 'term', 'Term_Command' );
-WP_CLI::add_command(
-	'term meta',
-	'Term_Meta_Command',
-	array(
-		'before_invoke' => function () {
-			if ( Utils\wp_version_compare( '4.4', '<' ) ) {
-				WP_CLI::error( 'Requires WordPress 4.4 or greater.' );
-			}
-		},
-	)
-);
+WP_CLI::add_command( 'term meta', 'Term_Meta_Command' );
 WP_CLI::add_command( 'user', 'User_Command' );
 WP_CLI::add_command(
 	'user application-password',
@@ -84,17 +74,7 @@
 	)
 );
 WP_CLI::add_command( 'user meta', 'User_Meta_Command' );
-WP_CLI::add_command(
-	'user session',
-	'User_Session_Command',
-	array(
-		'before_invoke' => function () {
-			if ( Utils\wp_version_compare( '4.0', '<' ) ) {
-				WP_CLI::error( 'Requires WordPress 4.0 or greater.' );
-			}
-		},
-	)
-);
+WP_CLI::add_command( 'user session', 'User_Session_Command' );
 WP_CLI::add_command( 'user term', 'User_Term_Command' );
 
 if ( class_exists( 'WP_CLI\Dispatcher\CommandNamespace' ) ) {

features/post.feature

@@ -451,40 +451,6 @@ Feature: Manage WordPress posts
       Test Post
       """
 
-  @less-than-wp-4.4
-  Scenario: Creating/updating posts with meta keys for WP < 4.4 has no effect so should give warning
-    When I try `wp post create --post_title='Test Post' --post_content='Test post content' --meta_input='{"key1":"value1","key2":"value2"}' --porcelain`
-    Then the return code should be 0
-    And STDOUT should be a number
-    And save STDOUT as {POST_ID}
-    And STDERR should be:
-      """
-      Warning: The 'meta_input' field was only introduced in WordPress 4.4 so will have no effect.
-      """
-
-    When I run `wp post meta list {POST_ID} --format=count`
-    Then STDOUT should be:
-      """
-      0
-      """
-
-    When I try `wp post update {POST_ID} --meta_input='{"key2":"value2b","key3":"value3"}'`
-    Then the return code should be 0
-    And STDERR should be:
-      """
-      Warning: The 'meta_input' field was only introduced in WordPress 4.4 so will have no effect.
-      """
-    And STDOUT should be:
-      """
-      Success: Updated post {POST_ID}.
-      """
-
-    When I run `wp post meta list {POST_ID} --format=count`
-    Then STDOUT should be:
-      """
-      0
-      """
-
   Scenario: Publishing a post and setting a date fails if the edit_date flag is not passed.
     Given a WP install
 

phpstan.neon.dist

@@ -0,0 +1,20 @@
+parameters:
+  level: 6
+  paths:
+    - src
+    - entity-command.php
+  scanDirectories:
+    - vendor/wp-cli/wp-cli/php
+    - vendor/wp-cli/wp-cli-tests
+  scanFiles:
+    - vendor/php-stubs/wordpress-stubs/wordpress-stubs.php
+  treatPhpDocTypesAsCertain: false
+  dynamicConstantNames:
+  	- WP_DEBUG
+  	- WP_DEBUG_LOG
+  	- WP_DEBUG_DISPLAY
+  ignoreErrors:
+    - identifier: missingType.iterableValue
+    - identifier: missingType.property
+    - identifier: missingType.parameter
+    - identifier: missingType.return

src/Comment_Command.php

@@ -243,6 +243,7 @@ public function get( $args, $assoc_args ) {
 		}
 
 		if ( ! isset( $comment->url ) ) {
+			// @phpstan-ignore property.notFound
 			$comment->url = get_comment_link( $comment );
 		}
 
@@ -366,6 +367,8 @@ public function get( $args, $assoc_args ) {
 	public function list_( $args, $assoc_args ) {
 		$formatter = $this->get_formatter( $assoc_args );
 
+		// To be fixed in wp-cli/wp-cli.
+		// @phpstan-ignore property.notFound
 		if ( 'ids' === $formatter->format ) {
 			$assoc_args['fields'] = 'comment_ID';
 		}
@@ -376,29 +379,22 @@ public function list_( $args, $assoc_args ) {
 			$assoc_args['count'] = true;
 		}
 
-		if ( ! empty( $assoc_args['comment__in'] )
-			&& ! empty( $assoc_args['orderby'] )
-			&& 'comment__in' === $assoc_args['orderby']
-			&& Utils\wp_version_compare( '4.4', '<' ) ) {
-			$comments = [];
-			foreach ( $assoc_args['comment__in'] as $comment_id ) {
-				$comment = get_comment( $comment_id );
-				if ( $comment ) {
-					$comments[] = $comment;
-				} else {
-					WP_CLI::warning( "Invalid comment {$comment_id}." );
-				}
-			}
-		} else {
-			$query    = new WP_Comment_Query();
-			$comments = $query->query( $assoc_args );
-		}
+		$query    = new WP_Comment_Query();
+		$comments = $query->query( $assoc_args );
 
 		if ( 'count' === $formatter->format ) {
+			/**
+			 * @var int $comments
+			 */
 			echo $comments;
 		} else {
 			if ( 'ids' === $formatter->format ) {
-				$comments = wp_list_pluck( $comments, 'comment_ID' );
+				/**
+				 * @var \WP_Comment[] $comments
+				 */
+				$items = wp_list_pluck( $comments, 'comment_ID' );
+
+				$comments = $items;
 			} elseif ( is_array( $comments ) ) {
 				$comments = array_map(
 					function ( $comment ) {
@@ -439,7 +435,7 @@ public function delete( $args, $assoc_args ) {
 			$args,
 			$assoc_args,
 			function ( $comment_id, $assoc_args ) {
-				$force = Utils\get_flag_value( $assoc_args, 'force' );
+				$force = (bool) Utils\get_flag_value( $assoc_args, 'force' );
 
 				$status = wp_get_comment_status( $comment_id );
 				$result = wp_delete_comment( $comment_id, $force );
@@ -457,6 +453,9 @@ function ( $comment_id, $assoc_args ) {
 	private function call( $args, $status, $success, $failure ) {
 		$comment_id = absint( $args );
 
+		/**
+		 * @var callable $func
+		 */
 		$func = "wp_{$status}_comment";
 
 		if ( ! $func( $comment_id ) ) {
@@ -642,16 +641,17 @@ public function unapprove( $args, $assoc_args ) {
 	 *     total_comments:  19
 	 */
 	public function count( $args, $assoc_args ) {
-		$post_id = Utils\get_flag_value( $args, 0, 0 );
+		$post_id = $args[0] ?? null;
 
 		$count = wp_count_comments( $post_id );
 
 		// Move total_comments to the end of the object
 		$total = $count->total_comments;
 		unset( $count->total_comments );
+		// @phpstan-ignore assign.propertyReadOnly
 		$count->total_comments = $total;
 
-		foreach ( $count as $status => $count ) {
+		foreach ( (array) $count as $status => $count ) {
 			WP_CLI::line( str_pad( "$status:", 17 ) . $count );
 		}
 	}
@@ -673,6 +673,9 @@ public function count( $args, $assoc_args ) {
 	public function recount( $args ) {
 		foreach ( $args as $id ) {
 			if ( wp_update_comment_count( $id ) ) {
+				/**
+				 * @var \WP_Post $post
+				 */
 				$post = get_post( $id );
 				WP_CLI::log( "Updated post {$post->ID} comment count to {$post->comment_count}." );
 			} else {

src/Comment_Meta_Command.php

@@ -104,11 +104,11 @@ protected function delete_metadata( $object_id, $meta_key, $meta_value = '' ) {
 	/**
 	 * Check that the comment ID exists
 	 *
-	 * @param int
+	 * @param int $object_id
 	 */
 	protected function check_object_id( $object_id ) {
 		$fetcher = new CommentFetcher();
-		$comment = $fetcher->get_check( $object_id );
+		$comment = $fetcher->get_check( (string) $object_id );
 		return $comment->comment_ID;
 	}
 }

src/Menu_Command.php

@@ -70,7 +70,7 @@ public function create( $args, $assoc_args ) {
 
 		} elseif ( Utils\get_flag_value( $assoc_args, 'porcelain' ) ) {
 
-				WP_CLI::line( $menu_id );
+				WP_CLI::line( (string) $menu_id );
 		} else {
 			WP_CLI::success( "Created menu {$menu_id}." );
 		}
@@ -166,6 +166,7 @@ public function list_( $args, $assoc_args ) {
 		$menu_locations = get_nav_menu_locations();
 		foreach ( $menus as &$menu ) {
 
+			// @phpstan-ignore property.notFound
 			$menu->locations = [];
 			foreach ( $menu_locations as $location => $term_id ) {
 

src/Menu_Item_Command.php

@@ -92,7 +92,7 @@ class Menu_Item_Command extends WP_CLI_Command {
 	public function list_( $args, $assoc_args ) {
 
 		$items = wp_get_nav_menu_items( $args[0] );
-		if ( false === $items || is_wp_error( $items ) ) {
+		if ( false === $items ) {
 			WP_CLI::error( 'Invalid menu.' );
 		}
 
@@ -408,10 +408,10 @@ public function delete( $args, $assoc_args ) {
 	private function add_or_update_item( $method, $type, $args, $assoc_args ) {
 
 		$menu            = $args[0];
-		$menu_item_db_id = Utils\get_flag_value( $args, 1, 0 );
+		$menu_item_db_id = $args[1] ?? 0;
 
 		$menu = wp_get_nav_menu_object( $menu );
-		if ( ! $menu || is_wp_error( $menu ) ) {
+		if ( false === $menu ) {
 			WP_CLI::error( 'Invalid menu.' );
 		}
 
@@ -422,6 +422,14 @@ private function add_or_update_item( $method, $type, $args, $assoc_args ) {
 		if ( 'update' === $method ) {
 
 			$menu_item_obj = get_post( $menu_item_db_id );
+
+			if ( ! $menu_item_obj ) {
+				WP_CLI::error( 'Invalid menu.' );
+			}
+
+			/**
+			 * @var object{title: string, url: string, description: string, object: string, object_id: int, menu_item_parent: int, attr_title: string, target: string, classes: string[], xfn: string, post_status: string, menu_order: int} $menu_item_obj
+			 */
 			$menu_item_obj = wp_setup_nav_menu_item( $menu_item_obj );
 
 			// Correct the menu position if this was the first item. See https://core.trac.wordpress.org/ticket/28140
@@ -502,7 +510,7 @@ private function add_or_update_item( $method, $type, $args, $assoc_args ) {
 			}
 
 			if ( 'add' === $method && ! empty( $assoc_args['porcelain'] ) ) {
-				WP_CLI::line( $result );
+				WP_CLI::line( (string) $result );
 			} elseif ( 'add' === $method ) {
 					WP_CLI::success( 'Menu item added.' );
 			} elseif ( 'update' === $method ) {

src/Menu_Location_Command.php

@@ -77,6 +77,8 @@ public function list_( $args, $assoc_args ) {
 
 		$formatter = new Formatter( $assoc_args, [ 'location', 'description' ] );
 
+		// To be fixed in wp-cli/wp-cli.
+		// @phpstan-ignore property.notFound
 		if ( 'ids' === $formatter->format ) {
 			$ids = array_map(
 				function ( $o ) {
@@ -107,6 +109,8 @@ function ( $o ) {
 	 *     Success: Assigned location primary to menu primary-menu.
 	 *
 	 * @subcommand assign
+	 *
+	 * @param array{string, string} $args
 	 */
 	public function assign( $args, $assoc_args ) {
 
@@ -147,18 +151,20 @@ public function assign( $args, $assoc_args ) {
 	 *     Success: Removed location from menu.
 	 *
 	 * @subcommand remove
+	 *
+	 * @param array{string, string} $args
 	 */
 	public function remove( $args, $assoc_args ) {
 
 		list( $menu, $location ) = $args;
 
 		$menu = wp_get_nav_menu_object( $menu );
-		if ( ! $menu || is_wp_error( $menu ) ) {
+		if ( false === $menu ) {
 			WP_CLI::error( 'Invalid menu.' );
 		}
 
 		$locations = get_nav_menu_locations();
-		if ( Utils\get_flag_value( $locations, $location ) !== $menu->term_id ) {
+		if ( ( $locations[ $location ] ?? null ) !== $menu->term_id ) {
 			WP_CLI::error( "Menu isn't assigned to location." );
 		}