如何实现 laravel 的artisan

laravel 的 artisan 命令行太好用了，换个框架没有这个功能，于是自己学习实现一些，直接上代码

新建目录

-artisan

--bin

--src

进入artisan composer init

composer require symfony/console

#!/usr/bin/env php
<?php

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

require_once __DIR__.'/../vendor/autoload.php';

$app = new Application('artisan','1.1.1');

$app->register('artisan')->setCode(function(InputInterface $input, OutputInterface $output){
    $output->writeln('artisan start');
});

$app->run();

exit();

以上是简单的实现

#!/usr/bin/env php
<?php

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;

require_once __DIR__ . '/../vendor/autoload.php';

$app = new Application('artisan', '1.1.1');

$app->register('artisan')
    ->setDescription('myself artisan description')
    ->setCode(
        function (InputInterface $input, OutputInterface $output) {
            $name = $input->getArgument('name');
            $output->writeln("hello {$name}");
        }
    )->addArgument('name', InputArgument::REQUIRED, 'please input your name');

$app->run();

exit();

这里演示了如何接收参数

#!/usr/bin/env php
<?php

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;

require_once __DIR__ . '/../vendor/autoload.php';

$app = new Application('artisan', '1.1.1');

$app->register('artisan')
    ->setDescription('myself artisan description')
    ->setCode(
        function (InputInterface $input, OutputInterface $output) {
            $string = $input->getOption('string');
            $name = $input->getArgument('name');
            if($string == 'lower'){
                $name = strtolower($name);
            }
            if($string == 'upper'){
                $name = strtoupper($name);
            }
            $output->writeln("hello {$name}");
        }
    )->addArgument('name', InputArgument::REQUIRED, 'please input your name')
    ->addOption('string',null,InputOption::VALUE_OPTIONAL,'转换字符串大小','lower')
;

$app->run();

exit();

这里演示了如何给命令行添加选项 ./bin/artisan.php artisan ffff --string='upper'   echo  FFFF

$output->writeln("<info>hello {$name}</info>");
$output->writeln("<error>hello {$name}</error>");
$output->writeln("<comment>hello {$name}</comment>");
$output->writeln("hello {$name}");

可以给它们加上颜色

接下来将命令行拆分为文件

bin/artisan.php

ArtisanCommand.php

#!/usr/bin/env php
<?php

use Symfony\Component\Console\Application;
use Artisan\ArtisanCommand;
require_once __DIR__ . '/../vendor/autoload.php';

$app = new Application('artisan', '1.1.1');

$app->add(new ArtisanCommand());

$app->run();

exit();


ArtisanCommand.php

<?php
namespace Artisan;

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Command\Command;

class ArtisanCommand extends Command{
    public function configure()
    {
        $this->setName('artisan');
        $this->setDescription('myself artisan description')
        ->addArgument('name', InputArgument::REQUIRED, 'please input your name')
        ->addOption('string',null,InputOption::VALUE_OPTIONAL,'转换字符串大小','lower');
    }

    public function execute(InputInterface $input, OutputInterface $output)
    {
        $string = $input->getOption('string');
        $name = $input->getArgument('name');
        if($string == 'lower'){
            $name = strtolower($name);
        }
        if($string == 'upper'){
            $name = strtoupper($name);
        }
        $output->writeln("<info>hello {$name}</info>");
        $output->writeln("<error>hello {$name}</error>");
        $output->writeln("<comment>hello {$name}</comment>");
        $output->writeln("hello {$name}");
    }
}

composer.json

{
    "name": "baidu/artisan",
    "authors": [
        {
            "name": "gaobingbing",
            "email": "v_gaobingbing01@baidu.com"
        }
    ],
    "require": {
        "symfony/console": "^4.3"
    },
    "autoload":  {
        "psr-4": {
            "Artisan\\": "src"
        }
    }
}

至此大功告成，还有其他功能可以去看Symfony文档

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