Cliphar

A zero-intrusive PHP microframework to instantly create command line apps.

1. Features

Container Interop interfaces for IoC. Laravel's container implementation adapter provided.
Logger implementation satisfying PSR-3 LoggerInterface
ServiceProvider interface to register services into the application

2. Creating a cliphar application

The easiest way to create a new application is using composer create-project:

composer create-project cliphar/cliphar-skeleton cliphar-demo
cd cliphar-demo
php stub.php

2.1 Adding a command

Edit resources/commands.php and add there your awesome commands:

<?php

use Symfony\Component\Console\Input\InputInterface;

cmd('awesome_command', '[option|o]="A default value" <argument>?',

    function (InputInterface $input, AnyService $anyService) {
        $anyService->anyFunction(
            $input->getOption('option'),
            $input->getArgument('argument')
        );
    }

);

And there you go. Enjoy:

php stub.php awesome_command -o "your option" argument_passed

Notice that InputInterface $input is injected as well as AnyService. To be able to get AnyService injected it must be resolvable by the IoC container, i.e. either it's a class with resolvable dependencies or it is registered in a ServiceProvider.

2.2 Adding symfony commands

If you prefer to create Symfony commands by yourself instead of using the cmd() helper, you can register them in the class Application adding them to the array returned in getCommands() eithor by its FQCN or the instances directly. If you provide the FQCN, the framework will use the container to resolve the class. The same apply to the service providers.

2.3 Options and arguments definition syntax:

2.3.1 Options

Option represeting boolean value: [option_name]
Shortcut: [option_name|o]. With this you can specify it as php stub.php --option_name , or php stub.php -o.
Option with a default value: [option_name]="default_value". If a default_value is specified you can't pass to your program that option without a value. So you can invoke your application as php stub.php or php stub.php --option_name="a value". But this will throw error: php stub.php --option_name

2.3.2 Arguments

Required argument: <argument>.
Optional argument: <argument>?.
Optional argument with a default value: <argument>="any default value".

3. Generating a phar

In the skeleton, there is a template box.json file which configures the compilation to a phar file. If you have box2 installed just do box build in the root directory of your application. Keep in mind that the option phar.readonly in your php.ini must be set to false.

For more info about box.json configuration and features see https://github.com/box-project/box2

4. Autowiring

The Laravel's container will autowire the dependencies declared in the constructor of your classes.

In the above example application, we are attaching The LoggerProvider ServiceProvider, which basically binds the Psr\Log\LoggerInterface interface to a concrete implementation. So, in our Acme\Command\ExampleCommand, if we declare a type hinted Psr\Log\LoggerInterface $loggerInterface in its constructor we'll receive the registered implementation. That's it.

You can avoid creating a ServiceProvider to register ExampleCommand in the container. If that class exists, and all its dependencies are resolvable by the container, we don't need to do further configuration, Laravel Container will be able to create the object.

5. Registering new ServiceProviders

If you need custom injection, you can create a class implementing Cliphar\ServiceProvider interface and append it to the getProviders() function. In the constructor of the service provider you can inject Interop\Container\ContainerInterface and Cliphar\Binder to bind your services.

6. More info

Symfony Console Documentation

7. Acknowledgements

To Symfony for the Console component.
To Laravel framework, for providing such a nice and powerful IoC container.
To Cilex, for inspiring this project.

jjtorroglosa/cliphar