Building a single Command Application
Edit this pageBuilding a single Command Application
When building a command line tool, you may not need to provide several commands. In such a case, having to pass the command name each time is tedious. Fortunately, it is possible to remove this need by declaring a single command application:
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#!/usr/bin/env php
<?php
require __DIR__.'/vendor/autoload.php';
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\SingleCommandApplication;
(new SingleCommandApplication())
->setName('My Super Command') // Optional
->setVersion('1.0.0') // Optional
->addArgument('foo', InputArgument::OPTIONAL, 'The directory')
->addOption('bar', null, InputOption::VALUE_REQUIRED)
->setCode(function (InputInterface $input, OutputInterface $output): int {
// output arguments and options
})
->run();You can still register a command as usual:
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#!/usr/bin/env php
<?php
require __DIR__.'/vendor/autoload.php';
use Acme\Command\DefaultCommand;
use Symfony\Component\Console\Application;
$application = new Application('echo', '1.0.0');
$command = new DefaultCommand();
$application->add($command);
$application->setDefaultCommand($command->getName(), true);
$application->run();The setDefaultCommand() method
accepts a boolean as second parameter. If true, the command echo will then
always be used, without having to pass its name.
This work, including the code samples, is licensed under a
Creative Commons BY-SA 3.0
license.
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