Re: [PATCH] gnu: Add ruby-libxml and bioruby.

["Thompson, David" <dthompson2@worcester.edu>]

On Tue, Sep 15, 2015 at 9:19 AM, Pjotr Prins <pjotr.public12@thebird.nl> wrote:
> On Tue, Sep 15, 2015 at 08:58:28AM -0400, Thompson, David wrote:
>> > +    (native-inputs `(("ruby-libxml" ,ruby-libxml)))
>>
>> This should be a propagated input.
>
> oops. I can be such a noob.

No worries. :)

>> > +    (inputs
>> > +     `(("coreutils" ,coreutils)  ; required for /bin/echo in tests
>>
>> Coreutils is an implict input to the Ruby build system.
>
> well, echo is not found by which, so coreutils is missing.

That is odd.  Coreutils is most definitely there.  I added this to a
build phase of another Ruby package and rebuilt it:

    (pk 'ECHO (which "echo"))

And the file name for echo was indeed displayed.

>> Usually gems with native extensions just redundantly build themselves
>> in the source directory before running tests, which I guess is not the
>> case here.
>>
>> It looks like you need to at least add ruby-rake-compiler to
>> native-inputs and run 'rake compile' before running the tests.
>
> I tried that.

Ah, damn.  Well let's not worry about it too much, then.

>> I tried to do this outside the build container from a git checkout
>> and several tests failed.  Give it a shot in the build recipe and
>> see how it goes.  If the problems are very difficult to solve, we
>> can leave the tests disabled with a note about the failures and
>> problems to solve.
>
> No dice.
>
>> Unfortunately, it seems there's no way to avoid compiling native
>> extensions twice when we do run tests since it needs to be compiled in
>> the source tree for tests, and then again when running 'gem install'.
>> The Ruby way of building things leaves much to be desired.
>
> Aye. Tests assume an already installed extension. The good news is
> that bioruby tests include ruby-libxml tests. So, at least, the
> integration works.

OK, cool.  That sounds good enough, then.

One more thing that I forgot: Use the 'modify-phases' syntax instead
of 'alist-cons-before' for the build phases.

Thanks!

- Dave