README

A simple base point for command line applications

Install with composer

composer create-project corley/cli ./my-app ~1

Usage

Everything is ruled by the dependency injection container. In services.yml you can define services and in commands.yml you can add commands.

Add commands

Every command must be tagged as app.comand (autoloading)

# commands.yml
hello.command:
  class: Command\MyCommand
  arguments:
    - "%hello%"
  tags:
    - {name: app.command}

Add services

# services.yml
services:
  mailer:
    class: MyApp\Mailer
    arguments:
      - mailer.transport
  mailer.transport:
    class: MyApp\Sendmail

Create a command

Just Symfony commands

<?php
namespace Command;

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

class MyCommand extends Command
{
    protected function configure()
    {
        $this->setName("app:command:one")
            ->setDescription("Example command")
            ->setHelp("Example command");
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        // here your logic
    }
}

Using dependency injection in your commands

Everything is ruled by dependency injection, so your command should be composed with the dependency injection container

<?php
namespace Command;

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

class MyCommand extends Command
{
    private $mailer;

    public function __construct(Mailer $mailer)
    {
        $this->mailer = $mailer;

        parent::__construct();
    }

    // other command methods
}

in your commands.yml

my.command:
  class: Command\MyCommand
  arguments:
    - "@mailer"
  tags:
    - {name: app.command}

Environment variables

Environment variable should be prefixed with: APP__ and those variables will be propagated as parameters

APP__HELLO=walter ./bin/console app:hello
Hello walter!

Rules:

• variables are replaced as lowercase strings
  • APP__WALTER=test -> setParameter('walter,'test');
• _ remains _
  • APP__WALTER_TEST=test -> setParameter('walter_test', 'test');
• __ will be .
  • APP__WALTER__TEST=test -> setParameter('walter.test', 'test');

Testing commands

class MyCommandTest extends TestCase
{
    public function testBaseCheck()
    {
		$command = new MyCommand();
        $commandTester = new CommandTester($command);
        $commandTester->execute([]);

        $this->assertRegExp('/Hello/', $commandTester->getDisplay());
    }
}

Inject your mocks manually

class MyCommandTest extends TestCase
{
    public function testBaseCheck()
    {
        $mock = $this->prophesize(Mailer::class);
        $mock->send(Argument::Any())->willReturn(true);

		$command = new MyCommand($mock->reveal());
        $commandTester = new CommandTester($command);
        $commandTester->execute([]);

        $this->assertRegExp('/Hello/', $commandTester->getDisplay());
    }
}

Examples

$ cd my-app
$ ./bin/console app:hello
$ Hello test!

Check the help message

$ ./bin/console
My App Name

Usage:
  command [options] [arguments]

Options:
  -h, --help            Display this help message
  -q, --quiet           Do not output any message
  -V, --version         Display this application version
      --ansi            Force ANSI output
      --no-ansi         Disable ANSI output
  -n, --no-interaction  Do not ask any interactive question
  -v|vv|vvv, --verbose  Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug

Available commands:
  help       Displays help for a command
  list       Lists commands
 app
  app:hello  Say hello