Fix theme update logic

Author: swissspidy

src/Theme_Command.php

@@ -439,7 +439,7 @@ protected function get_item_list() {
 	protected function filter_item_list( $items, $args ) {
 		$theme_files = array();
 		foreach ( $args as $arg ) {
-			$theme_files[] = $this->fetcher->get_check( $arg )->get_stylesheet_directory();
+			$theme_files[] = $this->fetcher->get_check( $arg )->get_stylesheet();
 		}
 
 		return Utils\pick_fields( $items, $theme_files );

src/WP_CLI/CommandWithUpgrade.php

@@ -370,11 +370,10 @@ protected function update_many( $args, $assoc_args ) {
 					}
 					unset( $items_to_update[ $plugin->file ] );
 				} elseif ( 'theme' === $this->item_type ) {
-					$theme_root = get_theme_root() . '/' . $item;
-					if ( ! is_dir( $theme_root ) ) {
-						continue;
+					$theme = wp_get_theme( $item );
+					if ( $theme->exists() ) {
+						unset( $items_to_update[ $theme->get_stylesheet() ] );
 					}
-					unset( $items_to_update[ $theme_root ] );
 				}
 			}
 		}
@@ -431,8 +430,13 @@ protected function update_many( $args, $assoc_args ) {
 			$transient_filter = function ( $transient ) use ( $items_to_update ) {
 				foreach ( $items_to_update as $name => $item_data ) {
 					if ( isset( $transient->response[ $name ] ) ) {
-						$transient->response[ $name ]->new_version = $item_data['update_version'];
-						$transient->response[ $name ]->package     = $item_data['update_package'];
+						if ( is_object( $transient->response[ $name ] ) ) {
+							$transient->response[ $name ]->new_version = $item_data['update_version'];
+							$transient->response[ $name ]->package     = $item_data['update_package'];
+						} else {
+							$transient->response[ $name ]['new_version'] = $item_data['update_version'];
+							$transient->response[ $name ]['package']     = $item_data['update_package'];
+						}
 					}
 				}
 				return $transient;

src/WP_CLI/ParseThemeNameInput.php

@@ -76,38 +76,38 @@ private function get_all_themes() {
 		}
 
 		foreach ( wp_get_themes() as $key => $theme ) {
-			$file = $theme->get_stylesheet_directory();
+			$stylesheet = $theme->get_stylesheet();
 
-			$update_info = ( isset( $all_update_info->response[ $theme->get_stylesheet() ] ) && null !== $all_update_info->response[ $theme->get_stylesheet() ] ) ? (array) $all_update_info->response[ $theme->get_stylesheet() ] : null;
+			$update_info = ( isset( $all_update_info->response[ $stylesheet ] ) && null !== $all_update_info->response[ $theme->get_stylesheet() ] ) ? (array) $all_update_info->response[ $theme->get_stylesheet() ] : null;
 
-			$items[ $file ] = [
+			$items[ $stylesheet ] = [
 				'name'           => $key,
 				'status'         => $this->get_status( $theme ),
 				'update'         => (bool) $update_info,
 				'update_version' => isset( $update_info['new_version'] ) ? $update_info['new_version'] : null,
 				'update_package' => isset( $update_info['package'] ) ? $update_info['package'] : null,
 				'version'        => $theme->get( 'Version' ),
-				'update_id'      => $theme->get_stylesheet(),
+				'update_id'      => $stylesheet,
 				'title'          => $theme->get( 'Name' ),
 				'description'    => wordwrap( $theme->get( 'Description' ) ),
 				'author'         => $theme->get( 'Author' ),
-				'auto_update'    => in_array( $theme->get_stylesheet(), $auto_updates, true ),
+				'auto_update'    => in_array( $stylesheet, $auto_updates, true ),
 			];
 
 			// Compare version and update information in theme list.
 			if ( isset( $theme_version_info[ $key ] ) && false === $theme_version_info[ $key ] ) {
-				$items[ $file ]['update'] = 'version higher than expected';
+				$items[ $stylesheet ]['update'] = 'version higher than expected';
 			}
 
 			if ( is_multisite() ) {
 				if ( ! empty( $site_enabled[ $key ] ) && ! empty( $network_enabled[ $key ] ) ) {
-					$items[ $file ]['enabled'] = 'network,site';
+					$items[ $stylesheet ]['enabled'] = 'network,site';
 				} elseif ( ! empty( $network_enabled[ $key ] ) ) {
-					$items[ $file ]['enabled'] = 'network';
+					$items[ $stylesheet ]['enabled'] = 'network';
 				} elseif ( ! empty( $site_enabled[ $key ] ) ) {
-					$items[ $file ]['enabled'] = 'site';
+					$items[ $stylesheet ]['enabled'] = 'site';
 				} else {
-					$items[ $file ]['enabled'] = 'no';
+					$items[ $stylesheet ]['enabled'] = 'no';
 				}
 			}
 		}