如何通过交互调用 artisan 控制台命令

Question

我目前正在 Laravel 5.1 项目中创建 php artisan 控制台命令，并且想从我的控制台命令调用另一个控制台命令。我要调用的这个第三方命令不接受任何选项或参数，而是通过交互式问题接收其输入。

我知道我可以调用带有如下选项和参数的命令：

$this->call('command:name', ['argument' => 'foo', '--option' => 'bar']);

我也知道我可以调用交互式命令而无需像这样从命令行进行交互：

php artisan command:name --no-interaction

但是我怎样才能在我的命令中回答这些互动问题呢？

我想做类似下面的事情（伪代码）。

$this->call('command:name', [
    'argument' => 'foo', 
    '--option' => 'bar'
], function($console) {
    $console->writeln('Yes'); //answer an interactive question 
    $console-writeln('No'); //answer an interactive question 
    $console->writeln(''); //skip answering an interactive question 
} );

当然上面不行，因为$this->call($command, $arguments)不接受第三个回调参数。

从控制台命令调用控制台命令时如何回答交互式问题？

Answer 1

我是这样做的。

注意：这会修补核心 Symfony class QuestionHelper@doAsk，尽管这段代码运行对我来说很好（我目前只是在做概念验证），这段代码在任何生产环境中都不应该运行。我还没有接受我自己的答案，想知道是否有更好的方法来做到这一点。

以下假定安装 Laravel 5.1。

首先 composer-require Patchwork 包。 我用它来增强 Symfony class 方法的功能.

composer require antecedent/patchwork

编辑 bootstrap/app.php 并在创建应用程序后立即添加以下内容。（不会自动加载 Patchwork）

if($app->runningInConsole()) {
    require_once(__DIR__ . '/../vendor/antecedent/patchwork/Patchwork.php');
};

将以下两个 use 语句添加到控制台命令的顶部 class

use Symfony\Component\Console\Output\OutputInterface;

use Symfony\Component\Console\Question\Question;

augment/patch QuestionHelper@doAsk 通过在控制台命令中使用这些辅助方法 class

public function __construct() {
    parent::__construct();
    $this->patchAskingQuestion();
}

/**
 * Patch QuestionHelper@doAsk
 * When a key 'qh-patch-answers' is found in the $_REQUEST superglobal,
 * We assume this is an array which holds the answers for our interactive questions.
 * shift each answer off the array, before answering the corresponding question.
 * When an answer has a NULL value, we will just provide the default answer (= skip question)
 */
private function patchAskingQuestion() {

    \Patchwork\replace('Symfony\Component\Console\Helper\QuestionHelper::doAsk', function(OutputInterface $output, Question $question) {

        $answers = &$_REQUEST['qh-patch-answers'];

        //No predefined answer found? Just call the original method
        if(empty($answers)) {
            return \Patchwork\callOriginal([$output, $question]);
        }

        //using the next predefined answer, or the default if the predefined answer was NULL
        $answer = array_shift($answers);
        return ($answer === null) ? $question->getDefault() : $answer;
    });
}

private function setPredefinedAnswers($answers) {
    $_REQUEST['qh-patch-answers'] = $answers;
}

private function clearPredefinedAnswers() {
    unset($_REQUEST['qh-patch-answers']);
}

您现在可以像这样回答互动问题

public function fire() {
    //predefine the answers to the interactive questions
    $this->setPredefinedAnswers([
        'Yes', //first question will be answered with 'Yes'
        'No', //second question will be answered with 'No'
        null, //third question will be skipped (using the default answer)
        null, //fourth question will be skipped (using the default answer)
    ]);

    //call the interactive command
    $this->call('command:name');

    //clean up, so future calls to QuestionHelper@doAsk will definitely call the original method
    $this->clearPredefinedAnswers();
}

Answer 2

我有另一个解决方案，它是调用 symfony 命令执行 'php artisan' 而不是使用 artisan 子命令。我认为这比修补第 3 方代码更好。

这是管理这个的特征。

use Symfony\Component\Process\Process;
use Symfony\Component\Process\Exception\ProcessFailedException;
trait ArtisanCommandTrait{
    public function executeArtisanCommand($command, $options){
        $stmt = 'php artisan '. $command . ' ' . $this->prepareOptions($options);

        $process = new Process($stmt);
        $process->run();
        // executes after the command finishes
        if (!$process->isSuccessful()) {
            throw new ProcessFailedException($process);
        }
        return $process->getOutput();
    }
    public function prepareOptions($options){
            $args = [];
            $opts = [];
            $flags = [];
            foreach ($options as $key => $value) {
                if(ctype_alpha(substr($key, 0, 1)))
                    $args[] = $value;
                else if(starts_with($key, '--')){
                    $opts[] = $key. (is_null($value) ? '' : '=' . $value) ;
                }
                else if(starts_with($key, '-')){
                    $flags[] = $key;
                }
            }
            return   implode(' ', $args) . ' '
                    .implode(' ', $opts). ' '
                    .implode(' ', $flags);
    }
}

现在，您应该可以传递任何 artisan 特殊选项，例如无交互。

public function handle(){
    $options = [
            'argument' => $argument,
            '--option' => $options,         // options should be preceded by --
            '-n' => null                    // no-interaction option
        ];
    $command = 'your:command';
    $output = $this->executeArtisanCommand($command, $options);        
    echo $output;
}

你可以从这里下载特征gist

Answer 3

与mpyw/streamable-console: Call interactive artisan command using arbitrary stream:

$this->usingInputStream("yes\nno\n")->call('command:name');

如何通过交互调用 artisan 控制台命令

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