/**
* Parse an existing crontab
*
* @param Crontab $crontab
*
* @return CrontabFileHandler
*/
public function parseExistingCrontab(Crontab $crontab)
{
$result = exec($this->crontabCommand($crontab) . ' -l', $output, $retval);
if (!empty($output)) {
//\Dsc\System::addMessage(\Dsc\Debug::dump($output));
foreach ($output as $line) {
if (trim($line) == '') {
continue;
}
try {
$job = \Dsc\Cron\Job::parse($line);
$crontab->addJob($job);
} catch (\Exception $e) {
\Dsc\System::addMessage('Encountered error (' . $e->getMessage() . ') when parsing cron job: ' . $line, 'error');
}
}
}
/*
// parsing cron file
$process = new Process($this->crontabCommand($crontab).' -l');
$process->run();
foreach ($this->parseString($process->getOutput()) as $job) {
$crontab->addJob($job);
}
$this->error = $process->getErrorOutput();
*/
return $this;
}
/**
* Returns an array of Cron Jobs based on the contents of a file.
*
* @param string $input
*
* @return Job[]
*/
protected function parseString($input)
{
$jobs = array();
$lines = array_filter(explode(PHP_EOL, $input), function ($line) {
return '' != trim($line);
});
foreach ($lines as $line) {
// if line is not a comment, convert it to a cron
if (0 !== \strpos($line, '#')) {
$jobs[] = Job::parse($line);
}
}
return $jobs;
}