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

Timestamp:

02/11/2008 05:45:54 AM (17 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');
+}
+
 ?>