Issue #1493098 by jcisio, pcambra, Pol, wamilton, Rok Žlender, beejeebus: Convert cron settings to configuration system.

core/modules/aggregator/aggregator.test

@@ -800,7 +800,7 @@ class AggregatorCronTestCase extends AggregatorTestCase {
   public function testCron() {
     // Create feed and test basic updating on cron.
     global $base_url;
-    $key = variable_get('cron_key', 'drupal');
+    $key = config('system.cron')->get('cron_key');
     $this->createSampleNodes();
     $feed = $this->createFeed();
     $this->cronRun();

core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php

@@ -1503,7 +1503,7 @@ abstract class WebTestBase extends TestBase {
    * Runs cron in the Drupal installed by Simpletest.
    */
   protected function cronRun() {
-    $this->drupalGet('cron/' . variable_get('cron_key', 'drupal'));
+    $this->drupalGet('cron/' . config('system.cron')->get('cron_key'));
   }
 
   /**

core/modules/system/config/system.cron.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<config>
+  <cron_max_threshold>10800</cron_max_threshold>
+  <cron_safe_threshold>10800</cron_safe_threshold>
+  <cron_threshold_warning>172800</cron_threshold_warning>
+  <cron_threshold_error>1209600</cron_threshold_error>
+  <cron_key>drupal</cron_key>
+</config>

core/modules/system/system.admin.inc

@@ -1570,7 +1570,7 @@ function system_site_information_settings_validate($form, &$form_state) {
  * @see system_settings_form()
  * @ingroup forms
  */
-function system_cron_settings() {
+function system_cron_settings($form, &$form_state) {
   $form['description'] = array(
     '#markup' => '<p>' . t('Cron takes care of running periodic tasks like checking for updates and indexing content for search.') . '</p>',
   );
@@ -1589,11 +1589,30 @@ function system_cron_settings() {
   $form['cron']['cron_safe_threshold'] = array(
     '#type' => 'select',
     '#title' => t('Run cron every'),
-    '#default_value' => variable_get('cron_safe_threshold', DRUPAL_CRON_DEFAULT_THRESHOLD),
+    '#default_value' => config('system.cron')->get('cron_safe_threshold'),
     '#options' => array(0 => t('Never')) + drupal_map_assoc(array(3600, 10800, 21600, 43200, 86400, 604800), 'format_interval'),
   );
+  // @todo This needs to be reviewed when #1324618 gets in.
+  $form_state['config']['cron_safe_threshold'] = array(
+    'name' => 'system.cron',
+    'path' => 'cron_safe_threshold',
+  );
 
-  return system_settings_form($form);
+  $form['submit'] = array('#type' => 'submit', '#value' => t('Save configuration'));
+  return $form;
+}
+
+/**
+ * Form builder submit handler; Handle submission for cron settings.
+ *
+ * @ingroup forms
+ * @see system_settings_form()
+ */
+function system_cron_settings_submit($form, &$form_state) {
+  config('system.cron')
+    ->set('cron_safe_threshold', $form_state['values']['cron_safe_threshold'])
+    ->save();
+  drupal_set_message(t('The configuration options have been saved.'));
 }
 
 /**

core/modules/system/system.install

@@ -253,10 +253,11 @@ function system_requirements($phase) {
 
   // Report cron status.
   if ($phase == 'runtime') {
+    $config = config('system.cron');
     // Cron warning threshold defaults to two days.
-    $threshold_warning = variable_get('cron_threshold_warning', 172800);
+    $threshold_warning = $config->get('cron_threshold_warning');
     // Cron error threshold defaults to two weeks.
-    $threshold_error = variable_get('cron_threshold_error', 1209600);
+    $threshold_error = $config->get('cron_threshold_error');
     // Cron configuration help text.
     $help = $t('For more information, see the online handbook entry for <a href="@cron-handbook">configuring cron jobs</a>.', array('@cron-handbook' => 'http://drupal.org/cron'));
 
@@ -283,7 +284,7 @@ function system_requirements($phase) {
     }
 
     $description .= ' ' . $t('You can <a href="@cron">run cron manually</a>.', array('@cron' => url('admin/reports/status/run-cron')));
-    $description .= '<br />' . $t('To run cron from outside the site, go to <a href="!cron">!cron</a>', array('!cron' => url('cron/' . variable_get('cron_key', 'drupal'))));
+    $description .= '<br />' . $t('To run cron from outside the site, go to <a href="!cron">!cron</a>', array('!cron' => url('cron/' . $config->get('cron_key'))));
 
     $requirements['cron'] = array(
       'title' => $t('Cron maintenance tasks'),
@@ -515,7 +516,9 @@ function system_install() {
 
   // Populate the cron key variable.
   $cron_key = drupal_hash_base64(drupal_random_bytes(55));
-  variable_set('cron_key', $cron_key);
+  config('system.cron')
+    ->set('cron_key', $cron_key)
+    ->save();
 }
 
 /**
@@ -1855,6 +1858,13 @@ function system_update_8008() {
   variable_del('clean_url');
 }
 
+/**
+ * Moves cron system settings from variable to config.
+ */
+function system_update_8009() {
+  update_variables_to_config('system.cron');
+}
+
 /**
  * @} End of "defgroup updates-7.x-to-8.x"
  * The next series of updates should start at 9000.

core/modules/system/system.module

@@ -10,11 +10,6 @@
  */
 const DRUPAL_MAXIMUM_TEMP_FILE_AGE = 21600;
 
-/**
- * Default interval for automatic cron executions in seconds.
- */
-const DRUPAL_CRON_DEFAULT_THRESHOLD = 10800;
-
 /**
  * New users will be set to the default time zone at registration.
  */
@@ -1135,7 +1130,7 @@ function system_cron_page() {
  * @see system_cron_page().
  */
 function system_cron_access($key) {
-  if ($key != variable_get('cron_key', 'drupal')) {
+  if ($key != config('system.cron')->get('cron_key')) {
     watchdog('cron', 'Cron could not run because an invalid key was used.', array(), WATCHDOG_NOTICE);
     return FALSE;
   }
@@ -3559,7 +3554,7 @@ function system_run_automated_cron() {
   // If the site is not fully installed, suppress the automated cron run.
   // Otherwise it could be triggered prematurely by Ajax requests during
   // installation.
-  if (($threshold = variable_get('cron_safe_threshold', DRUPAL_CRON_DEFAULT_THRESHOLD)) > 0 && variable_get('install_task') == 'done') {
+  if (($threshold = config('system.cron')->get('cron_safe_threshold')) > 0 && variable_get('install_task') == 'done') {
     $cron_last = variable_get('cron_last', NULL);
     if (!isset($cron_last) || (REQUEST_TIME - $cron_last > $threshold)) {
       drupal_cron_run();

core/modules/system/system.test

@@ -819,7 +819,7 @@ class CronRunTestCase extends WebTestBase {
     $this->assertResponse(403);
 
     // Run cron anonymously with the valid cron key.
-    $key = variable_get('cron_key', 'drupal');
+    $key = config('system.cron')->get('cron_key');
     $this->drupalGet('cron/' . $key);
     $this->assertResponse(200);
   }
@@ -836,7 +836,9 @@ class CronRunTestCase extends WebTestBase {
     $cron_last = time();
     $cron_safe_threshold = 100;
     variable_set('cron_last', $cron_last);
-    variable_set('cron_safe_threshold', $cron_safe_threshold);
+    config('system.cron')
+      ->set('cron_safe_threshold', $cron_safe_threshold)
+      ->save();
     $this->drupalGet('');
     $this->assertTrue($cron_last == variable_get('cron_last', NULL), t('Cron does not run when the cron threshold is not passed.'));