From 0461e41927d07dbb532e535a8ee81c6a6f4d172c Mon Sep 17 00:00:00 2001
From: "Dominik Schilling (ocean90)" <ocean90@git.wordpress.org>
Date: Sat, 11 Jun 2016 17:43:17 +0000
Subject: [PATCH] Upgrade: Trigger the `upgrader_process_complete` action for
 translation updates.

This brings `Language_Pack_Upgrader` in line with the core, theme, and plugin upgrader.

Props ronalfy.
Fixes #36872.

git-svn-id: https://develop.svn.wordpress.org/trunk@37687 602fd350-edb4-49c9-b593-d223f7449a82
---
 .../includes/class-language-pack-upgrader.php | 32 ++++++++++++++++++-
 src/wp-admin/includes/class-wp-upgrader.php   | 22 +++++++++----
 2 files changed, 47 insertions(+), 7 deletions(-)

diff --git a/src/wp-admin/includes/class-language-pack-upgrader.php b/src/wp-admin/includes/class-language-pack-upgrader.php
index 4c212c31d6..358a01e55a 100644
--- a/src/wp-admin/includes/class-language-pack-upgrader.php
+++ b/src/wp-admin/includes/class-language-pack-upgrader.php
@@ -222,6 +222,8 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 			if ( ! $wp_filesystem->mkdir( $remote_destination, FS_CHMOD_DIR ) )
 				return new WP_Error( 'mkdir_failed_lang_dir', $this->strings['mkdir_failed'], $remote_destination );
 
+		$language_updates_results = array();
+
 		foreach ( $language_updates as $language_update ) {
 
 			$this->skin->language_update = $language_update;
@@ -252,10 +254,38 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 			$results[] = $this->result;
 
 			// Prevent credentials auth screen from displaying multiple times.
-			if ( false === $result )
+			if ( false === $result ) {
 				break;
+			}
+
+			$language_updates_results[] = array(
+				'language' => $language_update->language,
+				'type'     => $language_update->type,
+				'slug'     => isset( $language_update->slug ) ? $language_update->slug : 'default',
+				'version'  => $language_update->version,
+			);
 		}
 
+		// Remove upgrade hooks which are not required for translation updates.
+		remove_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
+		remove_action( 'upgrader_process_complete', 'wp_version_check' );
+		remove_action( 'upgrader_process_complete', 'wp_update_plugins' );
+		remove_action( 'upgrader_process_complete', 'wp_update_themes' );
+
+		/** This action is documented in wp-admin/includes/class-wp-upgrader.php */
+		do_action( 'upgrader_process_complete', $this, array(
+			'action'       => 'update',
+			'type'         => 'translation',
+			'bulk'         => true,
+			'translations' => $language_updates_results
+		) );
+
+		// Re-add upgrade hooks.
+		add_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
+		add_action( 'upgrader_process_complete', 'wp_version_check' );
+		add_action( 'upgrader_process_complete', 'wp_update_plugins' );
+		add_action( 'upgrader_process_complete', 'wp_update_themes' );
+
 		$this->skin->bulk_footer();
 
 		$this->skin->footer();
diff --git a/src/wp-admin/includes/class-wp-upgrader.php b/src/wp-admin/includes/class-wp-upgrader.php
index 42b96b59dc..e7818c6ec1 100644
--- a/src/wp-admin/includes/class-wp-upgrader.php
+++ b/src/wp-admin/includes/class-wp-upgrader.php
@@ -762,17 +762,27 @@ class WP_Upgrader {
 			 *
 			 * @since 3.6.0
 			 * @since 3.7.0 Added to WP_Upgrader::run().
+			 * @since 4.6.0 `$translations` was added as a possible argument to `$hook_extra`.
 			 *
 			 * @param WP_Upgrader $this WP_Upgrader instance. In other contexts, $this, might be a
-			 *                          Theme_Upgrader, Plugin_Upgrader or Core_Upgrade instance.
+			 *                          Theme_Upgrader, Plugin_Upgrader, Core_Upgrade, or Language_Pack_Upgrader instance.
 			 * @param array       $hook_extra {
 			 *     Array of bulk item update data.
 			 *
-			 *     @type string $action  Type of action. Default 'update'.
-			 *     @type string $type    Type of update process. Accepts 'plugin', 'theme', or 'core'.
-			 *     @type bool   $bulk    Whether the update process is a bulk update. Default true.
-			 *     @type array  $plugins Array of the basename paths of the plugins' main files.
-			 *     @type array  $themes  The theme slugs.
+			 *     @type string $action       Type of action. Default 'update'.
+			 *     @type string $type         Type of update process. Accepts 'plugin', 'theme', 'translation', or 'core'.
+			 *     @type bool   $bulk         Whether the update process is a bulk update. Default true.
+			 *     @type array  $plugins      Array of the basename paths of the plugins' main files.
+			 *     @type array  $themes       The theme slugs.
+			 *     @type array  $translations {
+			 *         Array of translations update data.
+			 *
+			 *         @type string $language The locale the translation is for.
+			 *         @type string $type     Type of translation. Accepts 'plugin', 'theme', or 'core'.
+			 *         @type string $slug     Text domain the translation is for. The slug of a theme/plugin or
+			 *                                'default' for core translations.
+			 *         @type string $version  The version of a theme, plugin, or core.
+			 *     }
 			 * }
 			 */
 			do_action( 'upgrader_process_complete', $this, $options['hook_extra'] );