WordPress Update: Upgrade package not available (3.5)

Posted by on Tue, August 13, 2013

▼ A d v e r t i s e m e n t

I used to upgrade WordPress manually using FTP. I would update a local copy of the website, make sure everything works on my laptop and then upload it to the server. Not that I don’t trust WordPress automatic upgrade but I am paranoid that my custom plugins and changes will break the site.

However, starting from early 2012 I began to use the upgrade functionality within WordPress. Everything went really well until after I upgraded to 3.5

I wasn’t able to upgrade to 3.5.1 but I was able to upgrade another blog with earlier version than 3.5 to 3.5.1. So I thought it might be a problem with the settings or permissions on this site.

wordpress-update-upgrade-package-not-available

Today, I looked at the issue again. What I found is that there is a discrepancy between the upgrade code and the data returned by API.

The code failed here wp-admin/includes/class-wp-upgrader.php:

111   function download_package($package) {
116     if ( empty($package) )
117       return new WP_Error('no_package', $this->strings['no_package']);
127   }

Called within the same file:

878     $download = $this->download_package( $current->package );
879     if ( is_wp_error($download) )
880       return $download;

There are a lot more tracing done, but ultimately line 878 will always fail because $current does not have the property package:

stdClass Object
(
    [response] => upgrade
    [download] => http://wordpress.org/wordpress-3.6.zip
    [locale] => en_US
    [packages] => stdClass Object
        (
            [full] => http://wordpress.org/wordpress-3.6.zip
            [no_content] => http://wordpress.org/wordpress-3.6-no-content.zip
            [new_bundled] => http://wordpress.org/wordpress-3.6-new-bundled.zip
            [partial] => 
        )
 
    [current] => 3.6
    [php_version] => 5.2.4
    [mysql_version] => 5.0
    [new_bundled] => 3.6
    [partial_version] => 
    [dismissed] => 
)

I wanted to create a Trac ticket but realized that this should have been fixed, and this is a backward compatible issue anyway. Looking at the new code http://core.trac.wordpress.org/browser/trunk/wp-admin/includes/class-wp-upgrader.php?rev=24474 I am able to see that the packages properties has been handled.

A quick look at 3.5.1 also suggests that the new data returned has been handled correctly.

   1036     // If partial update is returned from the API, use that, unless we're doing a reinstall.
   1037     // If we cross the new_bundled version number, then use the new_bundled zip.
   1038     // Don't though if the constant is set to skip bundled items.
   1039     // If the API returns a no_content zip, go with it. Finally, default to the full zip.
   1040     if ( $current->packages->partial && 'reinstall' != $current->response && $wp_version == $current->partial_version )
   1041       $to_download = 'partial';
   1042     elseif ( $current->packages->new_bundled && version_compare( $wp_version, $current->new_bundled, '< ' )
   1043       && ( ! defined( 'CORE_UPGRADE_SKIP_NEW_BUNDLED' ) || ! CORE_UPGRADE_SKIP_NEW_BUNDLED ) )
   1044       $to_download = 'new_bundled';
   1045     elseif ( $current->packages->no_content )
   1046       $to_download = 'no_content';
   1047     else
   1048       $to_download = 'full';
   1049 
   1050     $download = $this->download_package( $current->packages->$to_download );
   1051     if ( is_wp_error($download) )
   1052       return $download;

My quick and dirty hack is to edit wp-admin/includes/class-wp-upgrader.php

    878     $download = $this->download_package( 'http://wordpress.org/wordpress-3.6-no-content.zip' );

Just like that, and upgrade was quick. If you’re stuck in 3.5 you can try it out.

welcome-worpress-3.6

Related Posts with Thumbnails

Tags:

Facebook Comment

WARNING & REMINDER: Comments are moderated and there is no exception. Comments unrelated to the post, too short, using phoney emails or funny names, will be marked as spam. Foul languages are filtered as spam. Your email will never be displayed on this site. If you would like to receive replies, use a valid email address and check the subscription box below.
 

Comments are closed.