GNU bug report logs - #67290
(current-profile) only works when invoked as a process named "guix"

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Package: guix; Reported by: Ian Eure <ian@HIDDEN>; dated Sun, 19 Nov 2023 21:25:02 UTC; Maintainer for guix is bug-guix@HIDDEN.

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References: <878r6tv3lu.fsf@HIDDEN> <87r0imx0li.fsf@HIDDEN>
User-agent: mu4e 1.10.8; emacs 29.1
From: Ian Eure <ian@HIDDEN>
To: 67290 <at> debbugs.gnu.org
Subject: Re: bug#67290: (current-profile) only works when invoked as a
 process named "guix"
Date: Sat, 13 Jan 2024 12:46:43 -0800
In-reply-to: <87r0imx0li.fsf@HIDDEN>
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Simon Tournier <zimon.toutoune@HIDDEN> writes:

> Hi,
>
> On Sun, 19 Nov 2023 at 13:24, Ian Eure <ian@HIDDEN> wrote:
>
>> The issue seems to be that current-profile checks the name of=20
>> the
>> program which was invoked, and always returns #f unless the=20
>> name ends
>> with "bin/guix".  Since "guile" doesn=E2=80=99t, they don=E2=80=99t work=
 as=20
>> expected.
>> See:
>> https://git.savannah.gnu.org/cgit/guix.git/tree/guix/describe.scm#n64
>
> About current-profile, maybe this patch:
>
> [2. p.patch --- text/x-diff; p.patch]
> diff --git a/guix/describe.scm b/guix/describe.scm
> index 65cd79094b..4147d5db1f 100644
> --- a/guix/describe.scm
> +++ b/guix/describe.scm
> @@ -61,14 +61,18 @@ (define current-profile
>  or #f if this is not applicable."
>      (match initial-program-arguments
>        ((program . _)
> -       (and (string-suffix? "/bin/guix" program)
> -            ;; Note: We want to do _lexical dot-dot=20
> resolution_.  Using ".."
> -            ;; for real would instead take us into the=20
> /gnu/store directory
> -            ;; that ~/.config/guix/current/bin points to,=20
> whereas we want to
> -            ;; obtain ~/.config/guix/current.
> -            (let ((candidate (dirname (dirname program))))
> -              (and (file-exists? (string-append candidate=20
> "/manifest"))
> -                   candidate)))))))
> +       (or (and (string-suffix? "/bin/guix" program)
> +                ;; Note: We want to do _lexical dot-dot=20
> resolution_.  Using ".."
> +                ;; for real would instead take us into the=20
> /gnu/store directory
> +                ;; that ~/.config/guix/current/bin points to,=20
> whereas we want to
> +                ;; obtain ~/.config/guix/current.
> +                (let ((candidate (dirname (dirname program))))
> +                  (and (file-exists? (string-append candidate=20
> "/manifest"))
> +                       candidate)))
> +           (let ((current (string-append
> +                           (config-directory #:ensure? #f)=20
> "/current/manifest")))
> +             (and (file-exists? current)
> +                  current)))))))
>=20=20
>  (define (current-profile-date)
>    "Return the creation date of the current profile (produced by=20
>    'guix pull'),
>
>
> ?
>
> Well, I do not know exactly if fixing your issue does not=20
> introduce
> regression.
>

The patch looks good to me, but this is all stuff I=E2=80=99m not very=20
familiar with.


> About emacs-guix, instead of launching Guile, why not start=20
> =E2=80=9Cguix
> repl=E2=80=9D instead?  The command =E2=80=9Cguix repl=E2=80=9D had been =
improved =E2=80=93 and=20
> maybe
> even introduced after the release of emacs-guix.  Somehow, I am=20
> not very
> happy with the current integration between Geiser and Guix. :-)
>

I=E2=80=99m not sure why it works the way it does, or whether it could be=20
changed to invoke `guix repl'.

I don=E2=80=99t think it=E2=80=99s expected for library code behavior to ch=
ange=20
depending on the runtime context, so I believe fixing Guix is the=20
right solution.  Perhaps the concerns around resolving relative=20
paths belongs somewhere more proximate to where that=E2=80=99s an issue?=20
I definitely don=E2=80=99t understand everything happening in this code,=20
but it strikes me as a concern relevant to some operations=20
executed from the CLI.  If that=E2=80=99s the case, putting it in the CLI=20
tooling where special handling is needed would make sense to me.

  =E2=80=94 Ian




Information forwarded to bug-guix@HIDDEN:
bug#67290; Package guix. Full text available.

Message received at 67290 <at> debbugs.gnu.org:


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From: Simon Tournier <zimon.toutoune@HIDDEN>
To: Ian Eure <ian@HIDDEN>, 67290 <at> debbugs.gnu.org
Subject: Re: bug#67290: (current-profile) only works when invoked as a
 process named "guix"
In-Reply-To: <878r6tv3lu.fsf@HIDDEN>
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable

Hi,

On Sun, 19 Nov 2023 at 13:24, Ian Eure <ian@HIDDEN> wrote:

> The issue seems to be that current-profile checks the name of the
> program which was invoked, and always returns #f unless the name ends
> with "bin/guix".  Since "guile" doesn=E2=80=99t, they don=E2=80=99t work =
as expected.
> See:
> https://git.savannah.gnu.org/cgit/guix.git/tree/guix/describe.scm#n64

About current-profile, maybe this patch:


--=-=-=
Content-Type: text/x-diff
Content-Disposition: inline; filename=p.patch
Content-Description: p.patch

diff --git a/guix/describe.scm b/guix/describe.scm
index 65cd79094b..4147d5db1f 100644
--- a/guix/describe.scm
+++ b/guix/describe.scm
@@ -61,14 +61,18 @@ (define current-profile
 or #f if this is not applicable."
     (match initial-program-arguments
       ((program . _)
-       (and (string-suffix? "/bin/guix" program)
-            ;; Note: We want to do _lexical dot-dot resolution_.  Using ".."
-            ;; for real would instead take us into the /gnu/store directory
-            ;; that ~/.config/guix/current/bin points to, whereas we want to
-            ;; obtain ~/.config/guix/current.
-            (let ((candidate (dirname (dirname program))))
-              (and (file-exists? (string-append candidate "/manifest"))
-                   candidate)))))))
+       (or (and (string-suffix? "/bin/guix" program)
+                ;; Note: We want to do _lexical dot-dot resolution_.  Using ".."
+                ;; for real would instead take us into the /gnu/store directory
+                ;; that ~/.config/guix/current/bin points to, whereas we want to
+                ;; obtain ~/.config/guix/current.
+                (let ((candidate (dirname (dirname program))))
+                  (and (file-exists? (string-append candidate "/manifest"))
+                       candidate)))
+           (let ((current (string-append
+                           (config-directory #:ensure? #f) "/current/manifest")))
+             (and (file-exists? current)
+                  current)))))))
 
 (define (current-profile-date)
   "Return the creation date of the current profile (produced by 'guix pull'),

--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable


?

Well, I do not know exactly if fixing your issue does not introduce
regression.

About emacs-guix, instead of launching Guile, why not start =E2=80=9Cguix
repl=E2=80=9D instead?  The command =E2=80=9Cguix repl=E2=80=9D had been im=
proved =E2=80=93 and maybe
even introduced after the release of emacs-guix.  Somehow, I am not very
happy with the current integration between Geiser and Guix. :-)

Cheers,
simon



--=-=-=--




Information forwarded to bug-guix@HIDDEN:
bug#67290; Package guix. Full text available.

Message received at submit <at> debbugs.gnu.org:


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From: Ian Eure <ian@HIDDEN>
To: bug-guix@HIDDEN
Subject: (current-profile) only works when invoked as a process named "guix"
Date: Sun, 19 Nov 2023 13:24:13 -0800
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When you invoke `guix repl', the current-profile and current-channels proce=
dures reflect my current profile and channel configuration:

    l0p!ieure~$ guix repl
    GNU Guile 3.0.9
    Copyright (C) 1995-2023 Free Software Foundation, Inc.

    Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
    This program is free software, and you are welcome to redistribute it
    under certain conditions; type `,show c' for details.

    Enter `,help' for help.
    scheme@(guix-user)> ,m (guix describe)
    scheme@(guix describe)> (current-profile)
    $1 =3D "/home/ieure/.config/guix/current"
    scheme@(guix describe)> (length (current-channels))
    $2 =3D 3
    scheme@(guix describe)>=20

If you run `guile', they do not:

    l0p!ieure~$ guile
    GNU Guile 3.0.9
    Copyright (C) 1995-2023 Free Software Foundation, Inc.

    Guile comes with ABSOLUTELY NO WARRANTY; for details type `,show w'.
    This program is free software, and you are welcome to redistribute it
    under certain conditions; type `,show c' for details.

    Enter `,help' for help.
    scheme@(guile-user)> ,m (guix describe)
    scheme@(guix describe)> (current-profile)
    $1 =3D #f
    scheme@(guix describe)> (length (current-channels))
    $2 =3D 1
    scheme@(guix describe)>=20

The issue seems to be that current-profile checks the name of the program w=
hich was invoked, and always returns #f unless the name ends with "bin/guix=
".  Since "guile" doesn=E2=80=99t, they don=E2=80=99t work as expected.  Se=
e: https://git.savannah.gnu.org/cgit/guix.git/tree/guix/describe.scm#n64

I discovered this when I was using emacs-guix to debug one of my package de=
finitions, which inherits from a package in a non-default channel.  While I=
 can load the .scm file into Geiser no matter what channels are configured,=
 it can=E2=80=99t use the module containing the package definition it inher=
its from.  This also appears to be the root cause behind this three-year-ol=
d bug report for emacs-guix: https://gitlab.com/emacs-guix/emacs-guix/-/iss=
ues/17

I=E2=80=99m not sure what the rationale is for this behavior, so I don=E2=
=80=99t have a suggestion for a fix, but it=E2=80=99s definitely a bug.

Thanks,

  =E2=80=94 Ian




Acknowledgement sent to Ian Eure <ian@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-guix@HIDDEN. Full text available.
Report forwarded to bug-guix@HIDDEN:
bug#67290; Package guix. Full text available.
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