[bug#32235] [PATCH] Fix Agda compilation, add Agda's emacs mode.

[Marius Bakke <mbakke@fastmail.com>]

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Alex ter Weele <alex.ter.weele@gmail.com> writes:

> Marius Bakke <mbakke@fastmail.com> writes:
>
>> Alex ter Weele <alex.ter.weele@gmail.com> writes:
>>
>>> From 2774cc719fa132ed8fd34a1d71f2c5a0f8697645 Mon Sep 17 00:00:00 2001
>>> From: Alex ter Weele <alex.ter.weele@gmail.com>
>>> Date: Fri, 20 Jul 2018 21:35:14 -0500
>>> Subject: [PATCH 1/2] gnu: agda: Compile .agda files.
>>>
>>> * gnu/packages/agda.scm: (agda)[arguments]: Compile .agda files.
>>
>> [...]
>>
>>> +    (arguments
>>> +     `(#:modules ((guix build haskell-build-system)
>>> +                  (guix build utils)
>>> +                  (srfi srfi-26))
>>> +       #:phases
>>> +       (modify-phases %standard-phases
>>> +         (add-after 'compile 'agda-compile
>>> +           (lambda* (#:key outputs #:allow-other-keys)
>>> +             (let* ((out (assoc-ref outputs "out"))
>>> +                    (agda-compiler (string-append out "/bin/agda"))
>>> +                    (agda-files-path (string-append
>>> +                                      out
>>> +                                      "/share/x86_64-linux-ghc-8.0.2/Agda-"
>>
>> This is unfortunate, since it hard-codes both architecture and GHC
>> version.  Can you think of another method to find these files?
>>
>> Are there ".agda" files elsewhere under "/share"?  Could the find-files
>> invokation below simply search "out/share", for example?
>>
>
> That works!
>
>>> +                                      ,version
>>> +                                      "/lib/prim/Agda/"))
>>> +                    (agda-files (append
>>> +                                 (find-files agda-files-path "\\.agda$")
>>> +                                 (find-files (string-append
>>> +                                              agda-files-path
>>> +                                              "Builtin")
>>> +                                             "\\.agda$"))))
>>
>> (find-files ...) recurses through subdirectories, are you sure adding an
>> extra pass for "Builtin/*.agda" makes a difference here?
>>
>
> Removed.
>
>>> +               (for-each (cut invoke agda-compiler <>) agda-files)
>>> +               #t))))))
>>>      (home-page "http://wiki.portal.chalmers.se/agda/")
>>
>> Otherwise LGTM.
>>
>> [...]
>>
>>> From ff441cb0b500d247de9a54c3212f80b4fcfaf04f Mon Sep 17 00:00:00 2001
>>> From: Alex ter Weele <alex.ter.weele@gmail.com>
>>> Date: Sat, 21 Jul 2018 10:57:35 -0500
>>> Subject: [PATCH 2/2] gnu: Add emacs-agda2-mode
>>>
>>> * gnu/packages/agda.scm (emacs-agda2-mode): New variable.
>>
>> LGTM!
>
> I found a few potential issues with it. The variable and package names
> were mismatched, the inputs were inherited, and the home page was
> misspelled. Corrected in the following patch series.
>
> Thanks for the review!

Thanks for catching my review mistake!  All LGTM.

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