Changeset 6779 for trunk/wp-admin/includes/update.php

Timestamp:

02/11/2008 05:45:54 AM (18 years ago)

Author:

ryan

Message:

First cut at plugin update. Props DD32 for the filesystem abstraction. see #5586

File:

• trunk/wp-admin/includes/update.php (modified) (1 diff)

trunk/wp-admin/includes/update.php

@@ -115 +115 @@
 
         echo "<tr><td colspan='5' class='plugin-update'>";
-        printf( __('There is a new version of %s available. <a href="%s">Download version %s here</a>.'), $plugin_data['Name'], $r->url, $r->new_version );
+        printf( __('There is a new version of %1$s available. <a href="%2$s">Download version %3$s here</a> or <a href="%4$s">upgrade automatically</a>.'), $plugin_data['Name'], $r->url, $r->new_version, "update.php?action=upgrade-plugin&amp;plugin=$file" );
         echo "</td></tr>";
 }
 add_action( 'after_plugin_row', 'wp_plugin_update_row' );
 
+function wp_update_plugin($plugin, $feedback = '') {
+        global $wp_filesystem;
+
+        if ( !empty($feedback) )
+                add_filter('update_feedback', $feedback);
+
+        // Is an update available?
+        $current = get_option( 'update_plugins' );
+        if ( !isset( $current->response[ $plugin ] ) )
+                return new WP_Error('up_to_date', __('The plugin is at the latest version.'));
+
+        // Is a filesystem accessor setup?
+        if ( ! $wp_filesystem || !is_object($wp_filesystem) )
+                WP_Filesystem();
+
+        if ( ! is_object($wp_filesystem) )
+                return new WP_Error('fs_unavailable', __('Could not access filesystem.'));
+
+        if ( $wp_filesystem->errors->get_error_code() ) 
+                return new WP_Error('fs_error', __('Filesystem error'), $wp_filesystem->errors);
+
+        // Get the URL to the zip file
+        $r = $current->response[ $plugin ];
+
+        if ( empty($r->package) )
+                return new WP_Error('no_package', __('Upgrade package not available.'));
+
+        // Download the package
+        $package = $r->package;
+        apply_filters('update_feedback', __("Downloading update from $package"));
+        $file = download_url($package);
+
+        if ( !$file )
+                return new WP_Error('download_failed', __('Download failed.'));
+
+        $name = basename($plugin, '.php');
+        $working_dir = ABSPATH . 'wp-content/upgrade/' . $name;
+
+        // Clean up working directory
+        $wp_filesystem->delete($working_dir, true);
+
+        apply_filters('update_feedback', __("Unpacking the update"));
+        // Unzip package to working directory
+        $result = unzip_file($file, $working_dir);
+        if ( is_wp_error($result) ) {
+                unlink($file);
+                $wp_filesystem->delete($working_dir, true);
+                return $result;
+        }
+
+        // Once installed, delete the package
+        unlink($file);
+        
+        // Remove the existing plugin.
+        apply_filters('update_feedback', __("Removing the old version of the plugin"));
+        $wp_filesystem->delete(ABSPATH . PLUGINDIR . "/$plugin");
+        $plugin_dir = dirname(ABSPATH . PLUGINDIR . "/$plugin");
+
+        // If plugin is in its own directory, recursively delete the directory.
+        if ( '.' != $plugin_dir )
+                $wp_filesystem->delete($plugin_dir, true);
+
+        apply_filters('update_feedback', __("Installing the latest version"));
+        // Copy new version of plugin into place.
+        copy_dir($working_dir, ABSPATH . PLUGINDIR);
+
+        // Remove working directory
+        $wp_filesystem->delete($working_dir, true);
+
+        // Force refresh of plugin update information
+        delete_option('update_plugins');
+}
+
 ?>