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<?php |
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namespace FOA\CronBundle\Manager; |
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use Symfony\Component\Process\Process; |
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/** |
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* CronManager provides easy access to the crontable |
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* |
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* @author Novikov Viktor |
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*/ |
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class CronManager |
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{ |
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/** |
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* The lines of the cron table, can be cron command or comment |
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* |
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* @var array |
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*/ |
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protected $lines = []; |
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/** |
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* The error when using the comment 'crontab' |
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* |
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* @var string |
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*/ |
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protected $error; |
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/** |
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* The output when using the command 'crontab' |
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* |
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* @var string |
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*/ |
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protected $output; |
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public function __construct() |
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{ |
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// parsing cron file |
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$process = new Process('crontab -l'); |
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$process->run(); |
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$lines = array_filter(explode(PHP_EOL, $process->getOutput()), function ($line) { |
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return '' != trim($line); |
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}); |
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foreach ($lines as $lineNumber => $line) { |
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// if line is nt a comment, convert it to a cron |
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if (strpos($line, '#suspended: ', 0) === 0 || 0 !== strpos($line, '#', 0)) { |
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try { |
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$line = Cron::parse($line); |
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} catch (\Exception $e) { |
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$process->addErrorOutput('CronManager was unable to parse crontab at line ' . $lineNumber); |
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} |
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} |
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$this->lines['l' . $lineNumber] = $line; |
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} |
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$this->error = $process->getErrorOutput(); |
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} |
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/** |
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* Gets the array of crons indexed by line number |
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* |
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* @return Cron[] |
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*/ |
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public function getCrons() |
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{ |
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return array_filter($this->lines, function ($line) { |
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return $line instanceof Cron; |
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}); |
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} |
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/** |
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* Get a specific cron by its id |
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* |
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* @param int $id |
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* |
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* @return Cron |
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*/ |
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public function getById($id) |
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{ |
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$cronList = $this->getCrons(); |
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if (!isset($cronList[$id])) { |
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throw new \InvalidArgumentException(sprintf('Unknown cron ID %d', $id)); |
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} |
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return $cronList[$id]; |
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} |
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/** |
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* Add a cron to the cron table |
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* |
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* @param Cron $cron |
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*/ |
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public function add(Cron $cron) |
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{ |
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$this->lines[] = $cron; |
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$this->write(); |
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} |
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/** |
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* Remove a cron from the cron table |
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* |
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* @param int $index - the line number |
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*/ |
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public function remove($index) |
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{ |
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$this->lines = array_diff_key($this->lines, [$index => '']); |
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$this->write(); |
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} |
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/** |
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* Write the current crons in the cron table |
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*/ |
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public function write() |
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{ |
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$file = tempnam(sys_get_temp_dir(), 'cron'); |
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file_put_contents($file, $this->getRaw() . PHP_EOL); |
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$process = new Process('crontab ' . $file); |
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$process->run(); |
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$this->error = $process->getErrorOutput(); |
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$this->output = $process->getOutput(); |
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} |
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/** |
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* Gets the error output when using the 'crontab' command |
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* |
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* @return string |
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*/ |
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public function getError() |
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{ |
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return $this->error; |
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} |
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/** |
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* Gets the output when using the 'crontab' command |
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* |
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* @return string |
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*/ |
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public function getOutput() |
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{ |
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return $this->output; |
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} |
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/** |
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* Gets a representation of the cron table file |
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* |
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* @return string |
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*/ |
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public function getRaw() |
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{ |
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return implode(PHP_EOL, $this->lines); |
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} |
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} |
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FriendsOfAkeneo /
FOACronBundle
