Update CONTRIBUTING.md

[adrianlyjak]

This updates contributor documentation for newly added formatCode command playframework/playframework#11513

[ihostage]

CONTRIBUTING is shared for all Play Framework repositories. Only when all repositories have this alias we will be able to add this line 😄

[mkurz]

@ihostage A quick grep tells me that not even all repositories have validateCode... e..g play-slick does not have it...
Of course we should add the command everywhere to make things easy, but we can also change the wording a bit like:

Usually a repository provides the sbt commands validateCode and formatCode. Run sbt validateCode to ensure all files are formatted and have the copyright header. If you changed docs please run that command inside the documentation folder as well. If validation fails, you can run the sbt formatCode command to run all of the various formatters. If the commands are not available you are welcome to open a pull request to add them.

IMHO such a wording also makes sense if we add new repositories and we don't add the commands immediately.

[felipebonezi]

Is there any list of repositories to update with validateCode?
Could we map and then work into an issue over play-meta maybe?

[mkurz]

Give me a second, I grep locally and let you know

[mkurz]

See playframework/play-meta#252

[adrianlyjak]

CONTRIBUTING is shared for all Play Framework repositories. Only when all repositories have this alias we will be able to add this line 😄

Thanks! I was wondering about this. I like @mkurz recommendation of qualifying and moving this towards a standard.

[adrianlyjak]

@ihostage @mkurz - Wording updated

[mkurz]

Thanks!