Easiest way is via composer. Just run composer require codenamephp/deployer.crontab
in your cli which should install the latest version for you.
Just install the package and use the task in your deploy.php, e.g:
$deployerFunctions = new \de\codenamephp\deployer\base\functions\All();
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Install()); //expects file in {{release_or_current_path}}/crontab -> crontab {{release_or_current_path}}/crontab
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Install('path/to/file')); // crontab path/to/file
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Install('path/to/file', 'deployerUser')); // crontab -u deployerUser path/to/file
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Show()); // crontab -l
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Show('deployerUser')); // crontab -u deployerUser -l
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Delete()); // crontab -r
$deployerFunctions->registerTask(new \de\codenamephp\deployer\crontab\Task\Delete('deployerUser')); // crontab -u deployerUser -r
vendor/bin/dep crontab:install
vendor/bin/dep crontab:show
vendor/bin/dep crontab:delete