From de59e21b6209012efbdb24cbed22aaa25a70d6bf Mon Sep 17 00:00:00 2001
From: Dominik Schilling <dominikschilling+git@gmail.com>
Date: Wed, 3 Sep 2014 10:38:17 +0000
Subject: [PATCH] Language Pack Upgrader: Allow to disable asynchronously
 translation updates.

* Don't touch VCS installs.
* Use the `async_update_translation` filter (which corresponds exactly to `auto_update_translation`) to entirely disable it, or based on the update offer.

props nacin, ocean90.
fixes #28571.
Built from https://develop.svn.wordpress.org/trunk@29694


git-svn-id: http://core.svn.wordpress.org/trunk@29469 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/includes/class-wp-upgrader.php | 37 +++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 3 deletions(-)

diff --git a/wp-admin/includes/class-wp-upgrader.php b/wp-admin/includes/class-wp-upgrader.php
index 8953accc8e..2bef3eaa6e 100644
--- a/wp-admin/includes/class-wp-upgrader.php
+++ b/wp-admin/includes/class-wp-upgrader.php
@@ -1196,20 +1196,51 @@ class Language_Pack_Upgrader extends WP_Upgrader {
 
 	public static function async_upgrade( $upgrader = false ) {
 		// Avoid recursion.
-		if ( $upgrader && $upgrader instanceof Language_Pack_Upgrader )
+		if ( $upgrader && $upgrader instanceof Language_Pack_Upgrader ) {
 			return;
+		}
 
 		// Nothing to do?
 		$language_updates = wp_get_translation_updates();
-		if ( ! $language_updates )
+		if ( ! $language_updates ) {
 			return;
+		}
+
+		// Avoid messing with VCS installs, at least for now.
+		// Noted: this is not the ideal way to accomplish this.
+		$check_vcs = new WP_Automatic_Updater;
+		if ( $check_vcs->is_vcs_checkout( WP_CONTENT_DIR ) ) {
+			return;
+		}
+
+		foreach ( $language_updates as $key => $language_update ) {
+			$update = ! empty( $language_update->autoupdate );
+
+			/**
+			 * Filter whether to asynchronously update translation for core, a plugin, or a theme.
+			 *
+			 * @since 4.0.0
+			 *
+			 * @param bool   $update          Whether to update.
+			 * @param object $language_update The update offer.
+			 */
+			$update = apply_filters( 'async_update_translation', $update, $language_update );
+
+			if ( ! $update ) {
+				unset( $language_updates[ $key ] );
+			}
+		}
+
+		if ( empty( $language_updates ) ) {
+			return;
+		}
 
 		$skin = new Language_Pack_Upgrader_Skin( array(
 			'skip_header_footer' => true,
 		) );
 
 		$lp_upgrader = new Language_Pack_Upgrader( $skin );
-		$lp_upgrader->upgrade();
+		$lp_upgrader->bulk_upgrade( $language_updates );
 	}
 
 	public function upgrade_strings() {