/**
* The preview for this task - this is called right before execution and
* in preview mode
*
* @return void
*/
public function preview()
{
$message = $this->get('message');
if ($message) {
$this->console->output($message);
}
}
/**
* Execute a shell command
*
* @param callable|null $callback A PHP callback to run whenever there is some
* output available on STDOUT or STDERR
*
* @return mixed The output of the shell command or FALSE if the command returned a non-zero exit code and $ignoreErrors was enabled.
*/
public function run($callback = null)
{
$command = $this->getCommandLine();
$this->console->output('<cmd>' . $this->getWorkingDirectory() . ' > ' . $command . '</cmd>', OutputInterface::VERBOSITY_VERBOSE);
if ($this->dryRun) {
return null;
}
parent::run(function ($type, $buffer) use($callback) {
if ($callback) {
call_user_func($callback, $type, $buffer);
}
if (!$this->shy || $type !== self::OUT) {
$this->console->output($buffer, $this->pt ? $this->console->getVerbosity() : OutputInterface::VERBOSITY_DEBUG, false, !$this->pt);
}
});
if ($this->getExitCode() !== 0) {
throw new ProcessFailedException($this);
}
return trim($this->getOutput());
}
