Add Rector as tool

[CodeCasterNL]

Describe the feature
Can Rector (https://github.com/rectorphp/rector, https://getrector.org/) be added to setup-php?

- name: Set up PHP with tools
  uses: shivammathur/setup-php@v2
  with:
    php-version: '8.1'
    tools: php-cs-fixer, phpstan, rector

Underlying issue
We use Rector (https://github.com/rectorphp/rector, https://getrector.org/) to analyze our code, in addition to PHP-CS-Fixer and PHPStan, and we --dry-run it in our GitHub Actions to check whether any code smells have been introduced.

Rector doesn't need the project's dependencies to be installed, it just checks our source files, so ideally we'd like to run it as early as possible in the pipeline, before Composer packages and whatnot have been installed.

Describe alternatives
Currently we run a composer install to install all of the project's dependencies, which includes Rector. Then we run Rector.

Are you willing to submit a PR?
I can try, I speak (Power)Shell.

[shivammathur]

@CodeCasterNL

This would already work

- name: Set up PHP with tools
  uses: shivammathur/setup-php@v2
  with:
    php-version: '8.1'
    tools: php-cs-fixer, phpstan, rector/rector

I will add support in the next release so that just rector would work.

[CodeCasterNL]

@shivammathur thanks, will test. Rector is not mentioned under https://github.com/shivammathur/setup-php#wrench-tools-support, do you mean you can just install any composer package like that?

[shivammathur]

Yes

[CodeCasterNL]

In addition to above tools any composer tool or package can also be set up globally by specifying it as vendor/package matching the listing on Packagist.

I see, missed that entirely, thanks.