GNU logs - #67877, boring messages

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Subject: [bug#67877] [PATCH 0/7] Enable Elixir packages that depend on Erlang packages to build
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From: Pierre-Henry =?UTF-8?Q?Fr=C3=B6hring?= <contact@HIDDEN>
Date: Mon, 18 Dec 2023 14:02:04 +0100
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Hello lylip,

It's great to see progress!

I suggest the next objective is to enable Elixir packages that depend on Er=
lang
packages to build. For instance, the Elixir package [telemetry_metrics] dep=
ends on the
Erlang telemetry package and is a dependency of the Elixir Phoenix package.

While reviewing the code of the Rebar build system, we noticed the use of t=
he
[skip_deps] Rebar flag, which is ignored by Rebar:
=E2=94=8C=E2=94=80=E2=94=80=E2=94=80=E2=94=80
=E2=94=82 $ guix shell rebar3 -- rebar3 help compile
=E2=94=82 [=E2=80=A6]
=E2=94=82   -d, --deps_only  Only compile dependencies, no project apps wil=
l be
=E2=94=82                    built.
=E2=94=94=E2=94=80=E2=94=80=E2=94=80=E2=94=80

So, to build Elixir packages that depend on Erlang, the necessary steps inl=
cude:
1) Updating the Rebar build system to align with the current usages of Reba=
r.
2) Allowing Elixir to access Erlang compiled libraries as discussed in [iss=
ue 66801].

If the following plan is agreed upon, then we will have an Elixir package t=
hat
depends on an Erlang package to build, specifically `telemetry_metrics'. Pa=
tches in the
series will have these objectives:

1. =E2=98=90 Update the Rebar build system to align with the current usages=
 of Rebar.
2. =E2=98=90 Update the Erlang build system to install libraries under `lib=
/erlang/X.Y' as discussed in issue 66801.
3. =E2=98=90 Update the Erlang package so that `GUIX_ERL_LIBS' gather all l=
ibraries installed under `lib/erlang/X.Y'.
4. =E2=98=90 Update the Erlang package to wrap its binaires so that they ha=
ve access to
   compiled libraries represented by `GUIX_ERL_LIBS'.
5. =E2=98=90 Add the Erlang Telemetry package.
6. =E2=98=90 Update the Elixir package so that it has access to Erlang pack=
ages represented by `GUIX_ERL_LIBS'.
7. =E2=98=90 Add the Elixir package `telemetry_metrics'.

If the corresponding patch series is merged, additional packages (whether E=
rlang,
Elixir, or other types) will be incorporated until Phoenix package builds.

What do you think of this plan?

=E2=80=93
Regards,
phf

[telemetry_metrics] <https://hex.pm/packages/telemetry_metrics>

[skip_deps] <https://git.savannah.gnu.org/cgit/guix.git/tree/guix/build-sys=
tem/rebar.scm?id=3Df410d49eb24db4eecae054dfe136464bc92ba8a3#n103>

[issue 66801] <https://issues.guix.gnu.org/66801#75>

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From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Pierre-Henry =?UTF-8?Q?Fr=C3=B6hring?= <contact@HIDDEN>
Subject: bug#67877: Acknowledgement ([PATCH 0/7] Enable Elixir packages
 that depend on Erlang packages to build)
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Date: Mon, 18 Dec 2023 13:08:02 +0000

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67877: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D67877
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Subject: [bug#67877] [PATCH 0/7] Enable Elixir packages that depend on Erlang packages to build
Resent-From: Liliana Marie Prikler <liliana.prikler@HIDDEN>
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Am Montag, dem 18.12.2023 um 14:02 +0100 schrieb Pierre-Henry Fr=C3=B6hring=
:
> Hello lylip,
>=20
> It's great to see progress!
>=20
> I suggest the next objective is to enable Elixir packages that depend
> on Erlang packages to build. For instance, the Elixir package
> [telemetry_metrics] depends on the Erlang telemetry package and is a
> dependency of the Elixir Phoenix package.
>=20
> While reviewing the code of the Rebar build system, we noticed the
> use of the [skip_deps] Rebar flag, which is ignored by Rebar:
> =E2=94=8C=E2=94=80=E2=94=80=E2=94=80=E2=94=80
> =E2=94=82 $ guix shell rebar3 -- rebar3 help compile
> =E2=94=82 [=E2=80=A6]
> =E2=94=82=C2=A0=C2=A0 -d, --deps_only=C2=A0 Only compile dependencies, no=
 project apps will
> be
> =E2=94=82=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 built.
> =E2=94=94=E2=94=80=E2=94=80=E2=94=80=E2=94=80
>=20
> So, to build Elixir packages that depend on Erlang, the necessary
> steps inlcude:
> 1) Updating the Rebar build system to align with the current usages
> of Rebar.
> 2) Allowing Elixir to access Erlang compiled libraries as discussed
> in [issue 66801].
>=20
> If the following plan is agreed upon, then we will have an Elixir
> package that depends on an Erlang package to build, specifically
> `telemetry_metrics'. Patches in the series will have these
> objectives:
>=20
> 1. =E2=98=90 Update the Rebar build system to align with the current usag=
es
> of Rebar.
> 2. =E2=98=90 Update the Erlang build system to install libraries under
> `lib/erlang/X.Y' as discussed in issue 66801.
> 3. =E2=98=90 Update the Erlang package so that `GUIX_ERL_LIBS' gather all
> libraries installed under `lib/erlang/X.Y'.
> 4. =E2=98=90 Update the Erlang package to wrap its binaires so that they =
have
> access to
> =C2=A0=C2=A0 compiled libraries represented by `GUIX_ERL_LIBS'.
> 5. =E2=98=90 Add the Erlang Telemetry package.
> 6. =E2=98=90 Update the Elixir package so that it has access to Erlang
> packages represented by `GUIX_ERL_LIBS'.
> 7. =E2=98=90 Add the Elixir package `telemetry_metrics'.
>=20
> If the corresponding patch series is merged, additional packages
> (whether Erlang, Elixir, or other types) will be incorporated until
> Phoenix package builds.
>=20
> What do you think of this plan?
Since we typically disable phoning home (including telemetry), I don't
think having a telemetry package in Guix would be good optics :)
Perhaps you can think of another example package but still follow the
steps laid out above?

Cheers

Message sent to guix-patches@HIDDEN:

Subject: [bug#67877] [PATCH 0/7] Enable Elixir packages that depend on Erlang packages to build
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From: Pierre-Henry =?UTF-8?Q?Fr=C3=B6hring?= <contact@HIDDEN>
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Dear lylip,

> Perhaps you can think of another example package but still follow the
> steps laid out above?

The [yaml_elixir] package should fit the bill as it calls [yamerl]. I have
got everything working here. I am in the process of crafting the various
patches. I have written a literate programming implementation of the rebar
build system to document the reasoning for future references. The code in
the post actually runs. Could you please review the reasoning? I will add
your remarks to the post.  Here is the post:

<https://phfrohring.com/867329cb-afbd-49d7-9c5c-f36ac07cd62c.html>

Thank you.

--

Regards,

-- phf


[yaml_elixir] <https://hex.pm/packages/yaml_elixir>

[yamerl] <https://hex.pm/packages/yamerl>

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