document working with multiple easyblocks repos

[boegel]

(old internal ticket 215)

A contributor should preferably clone the main EasyBuild GitHub repository, implement easyblocks in there and then contribute them back (see also [[Contributing back]]).

If for some reason easyblocks can not be contributed back, they can also be kept in a private easyblocks repository.

Basically, you just need to make sure these private repositories are in the PYTHONPATH, and everything should work out fine.

[claczny]

I would also like to see a step-wise description. Thank you.

[JensTimmerman]

This is documented a little bit in the FAQ: I don't like the a-z/ directory structure, can I change it?

[boegel]

I created a wiki page that explains this in detail, see https://github.com/hpcugent/easybuild/wiki/Setting-up-your-own-easyblocks-repository .

@claczny: Can you review this? If you think it's OK, we'll close this issue.

[boegel]

I also removed the entry in the FAQ, since it was not entirely correct: you can't use subdirectories in your own easyblocks repo, because there's no way to flatten the namespace twice (as mentioned on the wiki page).

[JensTimmerman]

Well, it might be possible with some dirty hack. I haven't gotten to the bottom of it yet, and our current flattening is already kind of a dirty hack, I don't want to make it any more dirty...

[fgeorgatos]

Hi folks,

we've been using these instructions since last week with no apparent problem;
I think this can now be closed.