improvment: reduce dist size

[Jibbarth]

Q	A
Bug fix?	no
New feature?	yes
Fixed tickets	#...

Following this article ("Use gitattributes to keep your tests out of other people’s production") I added some missing files to .gitattributes export-ignore

On the same idea, I complete the dockerignore also.
Note: I didn't exclude stub folder for those who get phpinsights through packagist, but I excluded it from docker because there is no way for docker user to retrieve stub from the container.

[olivernybroe]

It looks really good. And makes sense to reduce the package.

You should be able to ssh into the docker or use the cp command to extract files. (not docker expert so I might be wrong)
However the docker was created for running insight, not getting the stubs, so I think
that removing them makes sense. If a user really needs them, he can always fetch
them from github.

[Jibbarth]

Thank you @olivernybroe for the review.

To be honest, I was unable to launch a custom command on the container 😅
And as far I know, you cannot ssh into a container, until an ssh server is installed and launched inside.

 $ docker run -it -v $(pwd):/app nunomaduro/phpinsights /bin/sh 
                                     
  Command "/bin/sh" is not defined.                                    

 $ docker run -it -v $(pwd):/app nunomaduro/phpinsights /bin/ls
                                     
  Command "/bin/ls" is not defined.                                    

 $ docker run -it -v $(pwd):/app nunomaduro/phpinsights ls     
                                
  Command "ls" is not defined.             

But maybe you have some tricks ?

[olivernybroe]

@Jibbarth was the same I was thinking on doing. I am on a phone right now so can't test myself, but as it is Alpine based, what if you try with ash instead of sh, and try sh directly instead of full path 🤔