Update Grav when pressing the "Update Grav Now" button

classes/controller.php

@@ -682,6 +682,36 @@ class AdminController
         return true;
     }
 
+    /**
+     * Handles updating Grav
+     *
+     * @return bool True is the action was performed
+     */
+    public function taskUpdategrav()
+    {
+        require_once __DIR__ . '/gpm.php';
+
+        //TODO: manage permissions
+
+        $result = \Grav\Plugin\Admin\Gpm::selfupgrade();
+
+        if ($result) {
+            $this->admin->json_response = ['status' => 'success', 'message' => 'Everything updated'];
+        } else {
+            $this->admin->json_response = ['status' => 'error', 'message' => 'Updates failed'];
+        }
+
+        if ($result) {
+            $this->admin->setMessage("Installation successful.", 'info');
+        } else {
+            $this->admin->setMessage("Installation failed.", 'error');
+        }
+
+        //$this->post = array('_redirect' => $this->view . '/' . $this->route);
+
+        return true;
+    }
+
     /**
      * Handles updating plugins and themes
      *

classes/gpm.php

@@ -5,6 +5,7 @@ use Grav\Common\GravTrait;
 use Grav\Common\GPM\GPM as GravGPM;
 use Grav\Common\GPM\Installer;
 use Grav\Common\GPM\Response;
+use Grav\Common\GPM\Upgrader;
 use Grav\Common\Filesystem\Folder;
 use Grav\Common\GPM\Common\Package;
 
@@ -156,4 +157,32 @@ class Gpm
 
         return $cache_dir . DS . $filename;
     }
+
+    private static function _downloadSelfupgrade($package, $tmp)
+    {
+        $output = Response::get($package['download'], []);
+        Folder::mkdir($tmp);
+        file_put_contents($tmp . DS . $package['name'], $output);
+        return $tmp . DS . $package['name'];
+    }
+
+    public static function selfupgrade() {
+        $upgrader = new Upgrader();
+        $update = $upgrader->getAssets()['grav-update'];
+        $tmp = CACHE_DIR . 'tmp/Grav-' . uniqid();
+        $file = self::_downloadSelfupgrade($update, $tmp);
+
+        Installer::install($file, GRAV_ROOT,
+            ['sophisticated' => true, 'overwrite' => true, 'ignore_symlinks' => false]);
+
+        $errorCode = Installer::lastErrorCode();
+
+        Folder::delete($tmp);
+
+        if ($errorCode & (Installer::ZIP_OPEN_ERROR | Installer::ZIP_EXTRACT_ERROR)) {
+            return false;
+        }
+
+        return true;
+    }
 }

themes/grav/js/admin-all.js

@@ -112,7 +112,7 @@ $(function () {
     });
 
     // Update plugins/themes
-    $('[data-maintenance-update]').on('click', function(e) {
+    $(document).on('click', '[data-maintenance-update]', function(e) {
 
         $(this).attr('disabled','disabled').find('> .fa').removeClass('fa-cloud-download').addClass('fa-refresh fa-spin');
         var url = $(this).data('maintenanceUpdate');
@@ -223,7 +223,7 @@ $(function () {
                 if (grav.isUpdatable) {
                     var icon    = '<i class="fa fa-bullhorn"></i> ';
                         content = 'Grav <b>v{available}</b> is now available! <span class="less">(Current: v{version})</span> ',
-                        button  = '<button class="button button-small secondary" data-gpm-update="grav">Update Grav Now</button>';
+                        button  = '<button data-maintenance-update="' + GravAdmin.config.base_url_relative + '/update.json/task:updategrav" class="button button-small secondary">Update Grav Now</button>';
 
                     content = jQuery.substitute(content, {available: grav.available, version: grav.version});
                     $('[data-gpm-grav]').addClass('grav').html('<p>' + icon + content + button + '</p>');

themes/grav/templates/partials/base.html.twig

@@ -77,7 +77,7 @@
                 <p>
                 <i class="fa fa-bullhorn"></i>
                 Grav <b>v{{ admin.gpm.grav.getVersion() }}</b> is now available! <span class="less">(Current: v{{ constant('GRAV_VERSION') }})</span>
-                <button class="button button-small secondary">Update Grav Now</button>
+                <button data-maintenance-update="{{ base_url_relative }}/update.json/task:update" class="button button-small secondary">Update Grav Now</button>
                 </p>
             {% endif %}
             </div>