How is a «Cron script readiness check» implemented?

dmitry_fedyuk · April 3, 2016, 1:02pm

magento/magento2/blob/1f7a63dc97/setup/view/magento/setup/readiness-check/progress.phtml#L114-L134


<div class="readiness-check-item" ng-switch-default ng-init="updateOnError(cronScript)">
    <span class="readiness-check-icon icon-failed-round"></span>
    <div class="readiness-check-content">
        <h3 class="readiness-check-title">Check Cron Scripts</h3>
        <p>
            Cron script readiness check failed.
            <a href="#cron-script" ng-click="updateOnExpand(cronScript)">
                <span ng-hide="cronScript.expanded">Show detail</span>
                <span ng-show="cronScript.expanded">Hide detail</span>
            </a>
        </p>
        <p ng-show="cronScript.expanded" ng-bind-html="cronScript.setupErrorMessage">
        </p>
        <p ng-show="cronScript.expanded" ng-bind-html="cronScript.updaterErrorMessage">
        </p>
        <p ng-show="cronScript.expanded">For additional assistance, see
            <a href="http://devdocs.magento.com/guides/v2.0/comp-mgr/trouble/cman/cron.html"
               target="_blank">cron scripts help</a>.
        </p>
    </div>
</div>

https://github.com/magento/magento2/blob/1f7a63dc97/setup/src/Magento/Setup/Controller/Environment.php#L193-L211

github.com

magento/magento2/blob/1f7a63dc97/setup/src/Magento/Setup/Model/CronScriptReadinessCheck.php#L62-L80


/**
 * Check Setup Cron job status file
 *
 * @return array
 */
public function checkSetup()
{
    return $this->checkJson(self::SETUP);
}


/**
 * Check Updater Cron job status file
 *
 * @return array
 */
public function checkUpdater()
{
    return $this->checkJson(self::UPDATER);
}