GNU bug report logs - #68964
[PATCH] gnu: elixir: Remove wrap for mix.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Andrew Tropin <andrew <at> trop.in>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#68964: closed ([PATCH] gnu: elixir: Remove wrap for mix.)
Date: Thu, 08 Feb 2024 09:40:02 +0000

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Your message dated Thu, 08 Feb 2024 12:39:12 +0300
with message-id <875xyz8fcv.fsf <at> trop.in>
and subject line Re: [PATCH v2] gnu: elixir: Remove wrap for mix.
has caused the debbugs.gnu.org bug report #68964,
regarding [PATCH] gnu: elixir: Remove wrap for mix.
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


-- 
68964: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=68964
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Contact help-debbugs <at> gnu.org with problems

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From: Andrew Tropin <andrew <at> trop.in>
To: guix-patches <at> gnu.org
Cc: Pierre-Henry Fröhring <contact <at> phfrohring.com>,
 Liliana Marie Prikler <liliana.prikler <at> gmail.com>,
 Andrew Tropin <andrew <at> trop.in>
Subject: [PATCH] gnu: elixir: Remove wrap for mix.
Date: Wed,  7 Feb 2024 09:39:22 +0300

* gnu/packages/elixir.scm (elixir)[#:phases]: Instead of wrapping mix into
shell script, which sets environment variables, we patch mix itself and set
environmnet variables via elixir code.

Change-Id: Ia4643e18fe927491242a0541938b7570bd56fca1
---
 gnu/packages/elixir.scm | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/elixir.scm b/gnu/packages/elixir.scm
index ef8c39d0d7..70a8fad5e8 100644
--- a/gnu/packages/elixir.scm
+++ b/gnu/packages/elixir.scm
@@ -101,7 +101,18 @@ (define-public elixir
           (add-after 'install 'wrap-programs
             (lambda* (#:key inputs outputs #:allow-other-keys)
               (let* ((out (assoc-ref outputs "out"))
-                     (programs '("elixir" "elixirc" "iex" "mix")))
+                     (programs '("elixir" "elixirc" "iex")))
+                ;; mix can be sourced as an elixir script by other elixir
+                ;; program, for example `iex -S mix`, so we should not wrap
+                ;; mix into shell script.
+                (substitute* (string-append out "/bin/mix")
+                  (("Mix.start\\(\\)") "\
+~w[GUIX_ELIXIR_LIBS ERL_LIBS]
+|> Enum.map(&System.get_env/1)
+|> Enum.reject(&is_nil/1)
+|> Enum.join(\":\")
+|> case do \"\" -> :ok; erl_libs -> System.put_env(\"ERL_LIBS\", erl_libs) end
+Mix.start()"))
                 (for-each (lambda (program)
                             (wrap-program (string-append out "/bin/" program)
                               '("ERL_LIBS" prefix ("${GUIX_ELIXIR_LIBS}"))))

base-commit: cce7a6d2d2b18f51d1fcab67b02a38c11d6f4f2d
-- 
2.41.0

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From: Andrew Tropin <andrew <at> trop.in>
To: Liliana Marie Prikler <liliana.prikler <at> gmail.com>,
 68964-done <at> debbugs.gnu.org
Cc: Pierre-Henry Fröhring <contact <at> phfrohring.com>,
 Ivan Sokolov <ivan-p-sokolov <at> ya.ru>
Subject: Re: [PATCH v2] gnu: elixir: Remove wrap for mix.
Date: Thu, 08 Feb 2024 12:39:12 +0300

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On 2024-02-07 19:22, Liliana Marie Prikler wrote:

> Am Mittwoch, dem 07.02.2024 um 11:13 +0300 schrieb Andrew Tropin:
>> * gnu/packages/elixir.scm (elixir)[#:phases]: Instead of wrapping mix
>> into
>> shell script, which sets environment variables, we patch mix itself
>> and set
>> environmnet variables via elixir code.
>> 
>> Change-Id: Ia4643e18fe927491242a0541938b7570bd56fca1
>> 
>> Co-authored-by: Ivan Sokolov <ivan-p-sokolov <at> ya.ru>
>> Change-Id: I29d2c61299a8a54125f0e15190c526a860d501da
>> ---
>> Changes since v1: Added Ivan's copyright and co-authored-by.
>> 
>>  gnu/packages/elixir.scm | 15 ++++++++++++++-
>>  1 file changed, 14 insertions(+), 1 deletion(-)
>> 
>> diff --git a/gnu/packages/elixir.scm b/gnu/packages/elixir.scm
>> index ef8c39d0d7..2d11707711 100644
>> --- a/gnu/packages/elixir.scm
>> +++ b/gnu/packages/elixir.scm
>> @@ -7,6 +7,8 @@
>>  ;;; Copyright © 2018 Nikita <nikita <at> n0.is>
>>  ;;; Copyright © 2021 Oskar Köök <oskar <at> maatriks.ee>
>>  ;;; Copyright © 2021 Cees de Groot <cg <at> evrl.com>
>> +;;; Copyright © 2024 Andrew Tropin <andrew <at> trop.in>
>> +;;; Copyright © 2024 Ivan Sokolov <ivan-p-sokolov <at> ya.ru>
>>  ;;;
>>  ;;; This file is part of GNU Guix.
>>  ;;;
>> @@ -101,7 +103,18 @@ (define-public elixir
>>            (add-after 'install 'wrap-programs
>>              (lambda* (#:key inputs outputs #:allow-other-keys)
>>                (let* ((out (assoc-ref outputs "out"))
>> -                     (programs '("elixir" "elixirc" "iex" "mix")))
>> +                     (programs '("elixir" "elixirc" "iex")))
>> +                ;; mix can be sourced as an elixir script by other
>> elixir
>> +                ;; program, for example `iex -S mix`, so we should
>> not wrap
>> +                ;; mix into shell script.
>> +                (substitute* (string-append out "/bin/mix")
>> +                  (("Mix.start\\(\\)") "\
>> +~w[GUIX_ELIXIR_LIBS ERL_LIBS]
>> +|> Enum.map(&System.get_env/1)
>> +|> Enum.reject(&is_nil/1)
>> +|> Enum.join(\":\")
>> +|> case do \"\" -> :ok; erl_libs -> System.put_env(\"ERL_LIBS\",
>> erl_libs) end
>> +Mix.start()"))
> You might want to make a patch for that.  I don't speak Elixir, but
> from what I understand, this LGTM.

Thank you for reply!  Patch make sense for the consistency with similiar
fixes for other applications, however, it is also reasonable to keep the
logic of adding support for GUIX_ELIXIR_LIBS to all elixir binaries in
one build phase.  Both options seems viable to me, I'll stick with
substitute solution for now.

Applied and pushed as
https://git.savannah.gnu.org/cgit/guix.git/commit/?id=a903558577

-- 
Best regards,
Andrew Tropin

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