<?php

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/**

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* Upgrade API: Language_Pack_Upgrader class

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*

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* @package WordPress

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* @subpackage Upgrader

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* @since 4.6.0

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*/

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/**

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* Core class used for updating/installing language packs (translations)

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* for plugins, themes, and core.

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*

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* @since 3.7.0

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* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.

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*

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* @see WP_Upgrader

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*/

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class Language_Pack_Upgrader extends WP_Upgrader {

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/**

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* Result of the language pack upgrade.

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*

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* @since 3.7.0

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* @var array|WP_Error $result

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* @see WP_Upgrader::$result

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*/

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public $result;

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/**

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* Whether a bulk upgrade/installation is being performed.

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*

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* @since 3.7.0

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* @var bool $bulk

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*/

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public $bulk = true;

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/**

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* Asynchronously upgrades language packs after other upgrades have been made.

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*

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* Hooked to the {@see 'upgrader_process_complete'} action by default.

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*

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* @since 3.7.0

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*

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* @param false|WP_Upgrader $upgrader Optional. WP_Upgrader instance or false. If `$upgrader` is

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* a Language_Pack_Upgrader instance, the method will bail to

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* avoid recursion. Otherwise unused. Default false.

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*/

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public static function async_upgrade( $upgrader = false ) {

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// Avoid recursion.

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if ( $upgrader && $upgrader instanceof Language_Pack_Upgrader ) {

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return;

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}

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// Nothing to do?

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$language_updates = wp_get_translation_updates();

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if ( ! $language_updates ) {

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return;

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}

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/*

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* Avoid messing with VCS installations, at least for now.

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* Noted: this is not the ideal way to accomplish this.

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*/

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$check_vcs = new WP_Automatic_Updater();

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if ( $check_vcs->is_vcs_checkout( WP_CONTENT_DIR ) ) {

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return;

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}

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foreach ( $language_updates as $key => $language_update ) {

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$update = ! empty( $language_update->autoupdate );

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/**

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* Filters whether to asynchronously update translation for core, a plugin, or a theme.

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*

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* @since 4.0.0

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*

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* @param bool $update Whether to update.

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* @param object $language_update The update offer.

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*/

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$update = apply_filters( 'async_update_translation', $update, $language_update );

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if ( ! $update ) {

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unset( $language_updates[ $key ] );

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}

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}

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if ( empty( $language_updates ) ) {

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return;

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}

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// Re-use the automatic upgrader skin if the parent upgrader is using it.

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if ( $upgrader && $upgrader->skin instanceof Automatic_Upgrader_Skin ) {

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$skin = $upgrader->skin;

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} else {

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$skin = new Language_Pack_Upgrader_Skin(

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array(

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'skip_header_footer' => true,

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)

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);

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}

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$lp_upgrader = new Language_Pack_Upgrader( $skin );

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$lp_upgrader->bulk_upgrade( $language_updates );

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}

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/**

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* Initializes the upgrade strings.

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*

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* @since 3.7.0

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*/

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public function upgrade_strings() {

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$this->strings['starting_upgrade'] = __( 'Some of your translations need updating. Sit tight for a few more seconds while they are updated as well.' );

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$this->strings['up_to_date'] = __( 'Your translations are all up to date.' );

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$this->strings['no_package'] = __( 'Update package not available.' );

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/* translators: %s: Package URL. */

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$this->strings['downloading_package'] = sprintf( __( 'Downloading translation from %s&#8230;' ), '<span class="code pre">%s</span>' );

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$this->strings['unpack_package'] = __( 'Unpacking the update&#8230;' );

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$this->strings['process_failed'] = __( 'Translation update failed.' );

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$this->strings['process_success'] = __( 'Translation updated successfully.' );

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$this->strings['remove_old'] = __( 'Removing the old version of the translation&#8230;' );

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$this->strings['remove_old_failed'] = __( 'Could not remove the old translation.' );

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}

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/**

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* Upgrades a language pack.

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*

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* @since 3.7.0

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*

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* @param string|false $update Optional. Whether an update offer is available. Default false.

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* @param array $args Optional. Other optional arguments, see

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* Language_Pack_Upgrader::bulk_upgrade(). Default empty array.

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* @return array|bool|WP_Error The result of the upgrade, or a WP_Error object instead.

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*/

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public function upgrade( $update = false, $args = array() ) {

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if ( $update ) {

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$update = array( $update );

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}

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$results = $this->bulk_upgrade( $update, $args );

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if ( ! is_array( $results ) ) {

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return $results;

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}

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return $results[0];

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}

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/**

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* Upgrades several language packs at once.

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*

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* @since 3.7.0

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*

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* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.

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*

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* @param object[] $language_updates Optional. Array of language packs to update. See {@see wp_get_translation_updates()}.

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* Default empty array.

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* @param array $args {

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* Other arguments for upgrading multiple language packs. Default empty array.

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*

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* @type bool $clear_update_cache Whether to clear the update cache when done.

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* Default true.

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* }

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* @return array|bool|WP_Error Will return an array of results, or true if there are no updates,

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* false or WP_Error for initial errors.

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*/

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public function bulk_upgrade( $language_updates = array(), $args = array() ) {

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global $wp_filesystem;

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$defaults = array(

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'clear_update_cache' => true,

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);

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$parsed_args = wp_parse_args( $args, $defaults );

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$this->init();

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$this->upgrade_strings();

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if ( ! $language_updates ) {

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$language_updates = wp_get_translation_updates();

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}

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if ( empty( $language_updates ) ) {

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$this->skin->header();

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$this->skin->set_result( true );

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$this->skin->feedback( 'up_to_date' );

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$this->skin->bulk_footer();

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$this->skin->footer();

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return true;

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}

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if ( 'upgrader_process_complete' === current_filter() ) {

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$this->skin->feedback( 'starting_upgrade' );

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}

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// Remove any existing upgrade filters from the plugin/theme upgraders #WP29425 & #WP29230.

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remove_all_filters( 'upgrader_pre_install' );

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remove_all_filters( 'upgrader_clear_destination' );

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remove_all_filters( 'upgrader_post_install' );

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remove_all_filters( 'upgrader_source_selection' );

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add_filter( 'upgrader_source_selection', array( $this, 'check_package' ), 10, 2 );

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$this->skin->header();

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// Connect to the filesystem first.

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$res = $this->fs_connect( array( WP_CONTENT_DIR, WP_LANG_DIR ) );

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if ( ! $res ) {

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$this->skin->footer();

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return false;

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}

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$results = array();

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$this->update_count = count( $language_updates );

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$this->update_current = 0;

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/*

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* The filesystem's mkdir() is not recursive. Make sure WP_LANG_DIR exists,

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* as we then may need to create a /plugins or /themes directory inside of it.

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*/

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$remote_destination = $wp_filesystem->find_folder( WP_LANG_DIR );

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if ( ! $wp_filesystem->exists( $remote_destination ) ) {

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if ( ! $wp_filesystem->mkdir( $remote_destination, FS_CHMOD_DIR ) ) {

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return new WP_Error( 'mkdir_failed_lang_dir', $this->strings['mkdir_failed'], $remote_destination );

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}

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}

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$language_updates_results = array();

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foreach ( $language_updates as $language_update ) {

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$this->skin->language_update = $language_update;

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$destination = WP_LANG_DIR;

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if ( 'plugin' === $language_update->type ) {

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$destination .= '/plugins';

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} elseif ( 'theme' === $language_update->type ) {

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$destination .= '/themes';

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}

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++$this->update_current;

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$options = array(

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'package' => $language_update->package,

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'destination' => $destination,

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'clear_destination' => true,

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'abort_if_destination_exists' => false, // We expect the destination to exist.

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'clear_working' => true,

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'is_multi' => true,

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'hook_extra' => array(

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'language_update_type' => $language_update->type,

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'language_update' => $language_update,

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),

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);

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$result = $this->run( $options );

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$results[] = $this->result;

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// Prevent credentials auth screen from displaying multiple times.

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if ( false === $result ) {

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break;

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}

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$language_updates_results[] = array(

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'language' => $language_update->language,

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'type' => $language_update->type,

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'slug' => isset( $language_update->slug ) ? $language_update->slug : 'default',

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'version' => $language_update->version,

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);

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}

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// Remove upgrade hooks which are not required for translation updates.

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remove_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );

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remove_action( 'upgrader_process_complete', 'wp_version_check' );

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remove_action( 'upgrader_process_complete', 'wp_update_plugins' );

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remove_action( 'upgrader_process_complete', 'wp_update_themes' );

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/** This action is documented in wp-admin/includes/class-wp-upgrader.php */

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do_action(

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'upgrader_process_complete',

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$this,

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array(

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'action' => 'update',

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'type' => 'translation',

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'bulk' => true,

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'translations' => $language_updates_results,

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)

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);

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// Re-add upgrade hooks.

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add_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );

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add_action( 'upgrader_process_complete', 'wp_version_check', 10, 0 );

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add_action( 'upgrader_process_complete', 'wp_update_plugins', 10, 0 );

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add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );

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$this->skin->bulk_footer();

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$this->skin->footer();

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// Clean up our hooks, in case something else does an upgrade on this connection.

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remove_filter( 'upgrader_source_selection', array( $this, 'check_package' ) );

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if ( $parsed_args['clear_update_cache'] ) {

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wp_clean_update_cache();

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}

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return $results;

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}

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/**

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* Checks that the package source contains .mo and .po files.

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*

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* Hooked to the {@see 'upgrader_source_selection'} filter by

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* Language_Pack_Upgrader::bulk_upgrade().

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*

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* @since 3.7.0

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*

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* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.

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*

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* @param string|WP_Error $source The path to the downloaded package source.

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* @param string $remote_source Remote file source location.

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* @return string|WP_Error The source as passed, or a WP_Error object on failure.

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*/

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public function check_package( $source, $remote_source ) {

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global $wp_filesystem;

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if ( is_wp_error( $source ) ) {

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return $source;

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}

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// Check that the folder contains a valid language.

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$files = $wp_filesystem->dirlist( $remote_source );

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// Check to see if the expected files exist in the folder.

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$po = false;

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$mo = false;

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$php = false;

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foreach ( (array) $files as $file => $filedata ) {

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if ( str_ends_with( $file, '.po' ) ) {

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$po = true;

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} elseif ( str_ends_with( $file, '.mo' ) ) {

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$mo = true;

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} elseif ( str_ends_with( $file, '.l10n.php' ) ) {

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$php = true;

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}

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}

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if ( $php ) {

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return $source;

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}

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if ( ! $mo || ! $po ) {

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return new WP_Error(

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'incompatible_archive_pomo',

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$this->strings['incompatible_archive'],

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sprintf(

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/* translators: 1: .po, 2: .mo, 3: .l10n.php */

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__( 'The language pack is missing either the %1$s, %2$s, or %3$s files.' ),

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'<code>.po</code>',

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'<code>.mo</code>',

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'<code>.l10n.php</code>'

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)

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);

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}

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return $source;

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}

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/**

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* Gets the name of an item being updated.

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*

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* @since 3.7.0

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*

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* @param object $update The data for an update.

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* @return string The name of the item being updated.

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*/

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public function get_name_for_update( $update ) {

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switch ( $update->type ) {

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case 'core':

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return 'WordPress'; // Not translated.

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case 'theme':

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$theme = wp_get_theme( $update->slug );

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if ( $theme->exists() ) {

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return $theme->get( 'Name' );

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}

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break;

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case 'plugin':

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$plugin_data = get_plugins( '/' . $update->slug );

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$plugin_data = reset( $plugin_data );

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if ( $plugin_data ) {

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return $plugin_data['Name'];

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}

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break;

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}

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return '';

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}

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/**

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* Clears existing translations where this item is going to be installed into.

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*

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* @since 5.1.0

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*

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* @global WP_Filesystem_Base $wp_filesystem WordPress filesystem subclass.

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*

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* @param string $remote_destination The location on the remote filesystem to be cleared.

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* @return bool|WP_Error True upon success, WP_Error on failure.

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*/

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public function clear_destination( $remote_destination ) {

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global $wp_filesystem;

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$language_update = $this->skin->language_update;

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$language_directory = WP_LANG_DIR . '/'; // Local path for use with glob().

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if ( 'core' === $language_update->type ) {

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$files = array(

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$remote_destination . $language_update->language . '.po',

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$remote_destination . $language_update->language . '.mo',

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$remote_destination . $language_update->language . '.l10n.php',

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$remote_destination . 'admin-' . $language_update->language . '.po',

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$remote_destination . 'admin-' . $language_update->language . '.mo',

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$remote_destination . 'admin-' . $language_update->language . '.l10n.php',

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$remote_destination . 'admin-network-' . $language_update->language . '.po',

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$remote_destination . 'admin-network-' . $language_update->language . '.mo',

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$remote_destination . 'admin-network-' . $language_update->language . '.l10n.php',

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$remote_destination . 'continents-cities-' . $language_update->language . '.po',

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$remote_destination . 'continents-cities-' . $language_update->language . '.mo',

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$remote_destination . 'continents-cities-' . $language_update->language . '.l10n.php',

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);

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$json_translation_files = glob( $language_directory . $language_update->language . '-*.json' );

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if ( $json_translation_files ) {

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foreach ( $json_translation_files as $json_translation_file ) {

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$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );

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}

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}

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} else {

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$files = array(

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$remote_destination . $language_update->slug . '-' . $language_update->language . '.po',

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$remote_destination . $language_update->slug . '-' . $language_update->language . '.mo',

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$remote_destination . $language_update->slug . '-' . $language_update->language . '.l10n.php',

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);

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$language_directory = $language_directory . $language_update->type . 's/';

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$json_translation_files = glob( $language_directory . $language_update->slug . '-' . $language_update->language . '-*.json' );

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if ( $json_translation_files ) {

[446] Fix | Delete

foreach ( $json_translation_files as $json_translation_file ) {

[447] Fix | Delete

$files[] = str_replace( $language_directory, $remote_destination, $json_translation_file );

[448] Fix | Delete

}

[449] Fix | Delete

}

[450] Fix | Delete

}

[451] Fix | Delete

[452] Fix | Delete

$files = array_filter( $files, array( $wp_filesystem, 'exists' ) );

[453] Fix | Delete

[454] Fix | Delete

// No files to delete.

[455] Fix | Delete

if ( ! $files ) {

[456] Fix | Delete

return true;

[457] Fix | Delete

}

[458] Fix | Delete

[459] Fix | Delete

// Check all files are writable before attempting to clear the destination.

[460] Fix | Delete

$unwritable_files = array();

[461] Fix | Delete

[462] Fix | Delete

// Check writability.

[463] Fix | Delete

foreach ( $files as $file ) {

[464] Fix | Delete

if ( ! $wp_filesystem->is_writable( $file ) ) {

[465] Fix | Delete

// Attempt to alter permissions to allow writes and try again.

[466] Fix | Delete

$wp_filesystem->chmod( $file, FS_CHMOD_FILE );

[467] Fix | Delete

if ( ! $wp_filesystem->is_writable( $file ) ) {

[468] Fix | Delete

$unwritable_files[] = $file;

[469] Fix | Delete

}

[470] Fix | Delete

}

[471] Fix | Delete

}

[472] Fix | Delete

[473] Fix | Delete

if ( ! empty( $unwritable_files ) ) {

[474] Fix | Delete

return new WP_Error( 'files_not_writable', $this->strings['files_not_writable'], implode( ', ', $unwritable_files ) );

[475] Fix | Delete

}

[476] Fix | Delete

[477] Fix | Delete

foreach ( $files as $file ) {

[478] Fix | Delete

if ( ! $wp_filesystem->delete( $file ) ) {

[479] Fix | Delete

return new WP_Error( 'remove_old_failed', $this->strings['remove_old_failed'] );

[480] Fix | Delete

}

[481] Fix | Delete

}

[482] Fix | Delete

[483] Fix | Delete

return true;

[484] Fix | Delete

}

[485] Fix | Delete

}

[486] Fix | Delete

[487] Fix | Delete