bug#74250: emacs-guix: guix-pull invalid input error

bug#74250: emacs-guix: guix-pull invalid input error

[Christopher Howard]

Recently (the last week or two?) I've run into this problem where if I attempt to use guix-pull, which runs a "guix pull" from the *Guix REPL*, I get this error:

```
scheme@(emacs-guix)> (guix-command "pull")
Updating channel 'guix' from Git repository at 'https://git.savannah.gnu.org/git/guix.git'...
Building from this channel:
  guix      https://git.savannah.gnu.org/git/guix.git	2a6d964
guix pull: error: gnu/packages/commencement.scm:3333:4: package `guile@3.0.9' has an invalid input: ("source" #<origin "mirror://gnu/guile/guile-3.0.9.tar.xz" #<content-hash sha256:03bm1mnfc9kkg2ls942a0js7bxrdzmcffgrgg6anwdmjfan2a9hs> () 7f8e03e0f840>)
$12 = #t
```

However, I have no trouble doing a normal guix pull from the command-line. I have the same error running this with "emacs -q".

I am running GNU Emacs 30.0.92 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.41, cairo version 1.18.0) of 2024-10-29.

Here is my system information:

```
christopher@theoden 
------------------- 
OS: Guix System x86_64 
Host: OptiPlex 9020 00 
Kernel: 5.15.167-gnu 
Uptime: 30 days, 8 hours, 44 mins 
Packages: 167 (guix-system), 248 (guix-user) 
Shell: bash 5.1.16 
Resolution: 1920x1080 
DE: GNOME 
Theme: Adwaita [GTK2/3] 
Icons: Adwaita [GTK2/3] 
Terminal: launch-local-em 
CPU: Intel i5-4570 (4) @ 3.600GHz 
GPU: AMD ATI Radeon HD 8490 / R5 235X OEM 
GPU: Intel HD Graphics 
Memory: 4596MiB / 15914MiB 
```

``` guix describe
Generation 151	Oct 28 2024 08:31:51	(current)
  guix 4009d1d
    repository URL: https://git.savannah.gnu.org/git/guix.git
    branch: master
    commit: 4009d1de954d694cb11af391d4113d29c5c1379d
```

-- 
📛 Christopher Howard
🚀 gemini://gem.librehacker.com
🌐 http://gem.librehacker.com

בראשית ברא אלהים את השמים ואת הארץ

bug#74250: emacs-guix: guix-pull invalid input error

[Christopher Howard]

From what I can tell, the only place that &package-input-error can be
raised from is guix/packages.scm:41:25. From the error, it seems that
input

(\"source\" #<origin \"mirror://gnu/guile/guile-3.0.9.tar.xz\"
#<content-hash
sha256:03bm1mnfc9kkg2ls942a0js7bxrdzmcffgrgg6anwdmjfan2a9hs> ()
7efc797e9c00>)

is not matching any of the match candidates in the expand-input procedure
in (guix packages). Does anything about this input look malformed,
or...?

-- 
Christopher Howard

bug#74250: emacs-guix: guix-pull invalid input error

[Christopher Howard]

I discovered that if I go to Gnome console, set the GUILE_LOAD_PATH
appropriately for the emacs-guix scheme code, run «,re (emacs-guix),»
and then run (guix-command "pull") that the pull completes without any
issues.

This seems to imply that the problem is somehow root in geiser or how
geiser interacts with guile.

-- 
Christopher Howard

bug#74250: emacs-guix: guix-pull invalid input error

[Suhail Singh]

Christopher Howard <christopher@librehacker.com> writes:

> I discovered that if I go to Gnome console, set the GUILE_LOAD_PATH
> appropriately for the emacs-guix scheme code, run «,re (emacs-guix),»
> and then run (guix-command "pull") that the pull completes without any
> issues.

Out of curiosity, does the below raise an assertion error for you when
GUILE_LOAD_PATH is _not_ set "appropriately"?

#+begin_src emacs-lisp
  (let ((guile-load-path (split-string (getenv "GUILE_LOAD_PATH") ":")))
      (dolist (suffix '("guix/current/share/guile/site/3.0"
                        ;; <https://www.mail-archive.com/help-guix@gnu.org/msg13819.html>
                        "guix-module-union/share/guile/site/3.0"))
        (cl-assert (cl-some (lambda (x)
                              (string-suffix-p suffix x))
                            guile-load-path))))
#+end_src

-- 
Suhail

bug#74250: emacs-guix: guix-pull invalid input error

[Christopher Howard]

Suhail Singh <suhailsingh247@gmail.com> writes:

> Out of curiosity, does the below raise an assertion error for you when
> GUILE_LOAD_PATH is _not_ set "appropriately"?
>
> #+begin_src emacs-lisp
>   (let ((guile-load-path (split-string (getenv "GUILE_LOAD_PATH") ":")))
>       (dolist (suffix '("guix/current/share/guile/site/3.0"
>                         ;; <https://www.mail-archive.com/help-guix@gnu.org/msg13819.html>
>                         "guix-module-union/share/guile/site/3.0"))
>         (cl-assert (cl-some (lambda (x)
>                               (string-suffix-p suffix x))
>                             guile-load-path))))
> #+end_src

Hi, this is a little confusing since my example involved working outside
of Emacs, running Scheme from the guix repl. Are you wanting this elisp
code run before/after emacs-guix.el is loaded in Emacs? Anyhow, if I
just execute (eval-last-sexp) the code you sent, I get this error:

```
Debugger entered--Lisp error: (cl-assertion-failed ((cl-some (lambda (x) (string-suffix-p suffix x)) guile-load-path) nil))
  cl--assertion-failed((cl-some (lambda (x) (string-suffix-p suffix x)) guile-load-path))
  (or (cl-some #'(lambda (x) (string-suffix-p suffix x)) guile-load-path) (cl--assertion-failed '(cl-some (lambda (x) (string-suffix-p suffix x)) guile-load-path)))
  (progn (or (cl-some #'(lambda (x) (string-suffix-p suffix x)) guile-load-path) (cl--assertion-failed '(cl-some (lambda (x) (string-suffix-p suffix x)) guile-load-path))) nil)
  (let ((suffix (car tail))) (progn (or (cl-some #'(lambda (x) (string-suffix-p suffix x)) guile-load-path) (cl--assertion-failed '(cl-some (lambda (x) (string-suffix-p suffix x)) guile-load-path))) nil) (setq tail (cdr tail)))
  (while tail (let ((suffix (car tail))) (progn (or (cl-some #'(lambda (x) (string-suffix-p suffix x)) guile-load-path) (cl--assertion-failed '(cl-some (lambda ... ...) guile-load-path))) nil) (setq tail (cdr tail))))
  (let ((tail '("guix/current/share/guile/site/3.0" "guix-module-union/share/guile/site/3.0"))) (while tail (let ((suffix (car tail))) (progn (or (cl-some #'(lambda ... ...) guile-load-path) (cl--assertion-failed '(cl-some ... guile-load-path))) nil) (setq tail (cdr tail)))))
  (let ((guile-load-path (split-string (getenv "GUILE_LOAD_PATH") ":"))) (let ((tail '("guix/current/share/guile/site/3.0" "guix-module-union/share/guile/site/3.0"))) (while tail (let ((suffix (car tail))) (progn (or (cl-some #'... guile-load-path) (cl--assertion-failed '...)) nil) (setq tail (cdr tail))))))
  eval((let ((guile-load-path (split-string (getenv "GUILE_LOAD_PATH") ":"))) (let ((tail '("guix/current/share/guile/site/3.0" "guix-module-union/share/guile/site/3.0"))) (while tail (let ((suffix (car tail))) (progn (or (cl-some ... guile-load-path) (cl--assertion-failed ...)) nil) (setq tail (cdr tail)))))) nil)
  elisp--eval-last-sexp(nil)
  #f(compiled-function () #<bytecode 0x2999fd94511e2>)()
  handler-bind-1(#f(compiled-function () #<bytecode 0x2999fd94511e2>) (error) eval-expression--debug)
  eval-last-sexp(nil)
  funcall-interactively(eval-last-sexp nil)
  call-interactively(eval-last-sexp nil nil)
  command-execute(eval-last-sexp)
```

-- 
Christopher Howard

bug#74250: emacs-guix: guix-pull invalid input error

[Suhail Singh]

Christopher Howard <christopher@librehacker.com> writes:

> Hi, this is a little confusing since my example involved working outside
> of Emacs, running Scheme from the guix repl.

I am confused (as well).  I thought you were running the command via the
"*Guix REPL*" buffer created by emacs-guix.  Perhaps not?  I'll share
below some thoughts as well as reasons for my curiosity.  Please use
your judgment in determining whether or not they are applicable to your
situation.

It's possible that I'm mistaken, but my understanding of emacs-guix was
that it invoked a Guile REPL (even though it refers to it as a Guix
REPL).  This can be confirmed by evaluating "(command-line)" in the
"*Guix REPL*" buffer (which on my machine, on a foreign distro, shows
guile).

> Are you wanting this elisp code run before/after emacs-guix.el is
> loaded in Emacs?

As long as emacs-guix is not modifying the GUILE_LOAD_PATH environment
variable, it didn't matter when the code was evaluated.

> Anyhow, if I just execute (eval-last-sexp) the code you sent, I get
> this error:

The error you encountered could be due to a difference in %load-path
between the emacs-guix "*Guix REPL*" buffer vs %load-path when one runs
"guix repl" directly on the shell.  The "guix-module-union" entry may be
of interest.

On my machine, I have to take some extra steps to ensure that said entry
exists in GUILE_LOAD_PATH (i.e., the %load-path when one loads the guile
repl).

-- 
Suhail

bug#74250: emacs-guix: guix-pull invalid input error

[Christopher Howard]

So, when inside Emacs, it appears that emacs-guix, after launching the *Guix REPL* and *Guix Internal REPL*, adds it's own scheme code to the paths in %load-path. In either of these REPLs, I can see that the emacs-guix scheme code is the first entry in the list:

```
scheme@(emacs-guix)> %load-path
$13 = ("/home/christopher/Repos/emacs-guix/scheme" "/home/christopher/.config/guix/current/share/guile/site/3.0" "/gnu/store/60hgms029zpd92w065g7lgnq5vw5rd7b-emacs-geiser-guile-0.28.3/share/emacs/site-lisp/geiser-guile-0.28.3/src" "/home/christopher/.guix-home/profile/share/guile/site/3.0" "/home/christopher/.guix-profile/share/guile/site/3.0" "/run/current-system/profile/share/guile/site/3.0" "/gnu/store/mfkz7fvlfpv3ppwbkv0imb19nrf95akf-guile-3.0.9/share/guile/3.0" "/gnu/store/mfkz7fvlfpv3ppwbkv0imb19nrf95akf-guile-3.0.9/share/guile/site/3.0" "/gnu/store/mfkz7fvlfpv3ppwbkv0imb19nrf95akf-guile-3.0.9/share/guile/site" "/gnu/store/mfkz7fvlfpv3ppwbkv0imb19nrf95akf-guile-3.0.9/share/guile")
```

However, that path is not in Emacs' own environment, as I can see with getenv:

``` ielm
ELISP> (getenv "GUILE_LOAD_PATH")
"/home/christopher/.guix-home/profile/share/guile/site/3.0:/home/christopher/.guix-profile/share/guile/site/3.0:/run/current-system/profile/share/guile/site/3.0"

ELISP> (getenv "GUILE_LOAD_COMPILED_PATH")
"/home/christopher/.guix-home/profile/lib/guile/3.0/site-ccache:/home/christopher/.guix-home/profile/share/guile/site/3.0:/home/christopher/.guix-profile/lib/guile/3.0/site-ccache:/home/christopher/.guix-profile/share/guile/site/3.0:/run/current-system/profile/lib/guile/3.0/site-ccache:/run/current-system/profile/share/guile/site/3.0"
```

So, my experiment was to see if I could run the scheme command «(guix-command "pull")» from the console instead, just using guix repl. However, since guix repl will not load any emacs-guix scheme code, I had to add "/home/christopher/Repos/emacs-guix/scheme" to the GUILE_LOAD_PATH in order to be able to load (emacs-guix) module.

Hopefully that clarifies what I am seeing.

Looking at this now, I see that there are significant differences between the paths for paths in %load-path vs paths in GUILE_LOAD_PATH. Perhaps I am running old code from the wrong profile or something. I will try to look into this more.

``` eshell
~/Repos/guix $ realpath /home/christopher/.guix-home/profile/share/guile/site/3.0
/gnu/store/0zhhnwmk8jlvx2rycgkh6dclv75gp1xr-profile/share/guile/site/3.0
~/Repos/guix $ realpath "/home/christopher/.config/guix/current/share/guile/site/3.0"
/gnu/store/yqsx2n66a0hlzpimqsw392x8f2x6nrzi-guix-804f8b209-modules/share/guile/site/3.0
```

-- 
Christopher Howard

bug#74250: emacs-guix: guix-pull invalid input error

[Suhail Singh]

Christopher Howard <christopher@librehacker.com> writes:

> So, my experiment was to see if I could run the scheme command «(guix-command
> "pull")» from the console instead, just using guix repl. However, since guix
> repl will not load any emacs-guix scheme code, I had to add
> "/home/christopher/Repos/emacs-guix/scheme" to the GUILE_LOAD_PATH in order to
> be able to load (emacs-guix) module.
>
> Hopefully that clarifies what I am seeing.

I see.  Thank you for clarifying.

> Looking at this now, I see that there are significant differences between the
> paths for paths in %load-path vs paths in GUILE_LOAD_PATH.

Yes.

The "guix-module-union" entry I alluded to was one of the differences I
had observed between %load-path values between "guile" and "guix repl"
when both were invoked from the commandline (outside of Emacs).  It may
help for a future version of emacs-guix to take some steps to resolve
said differences, if you find them to be material / problematic.

-- 
Suhail

bug#74250: emacs-guix: guix-pull invalid input error

[Christopher Howard]

After cleaning up my profiles, and some other troubleshooting, I eventually realized that the failure can be bypassed by setting guix-repl-use-server to nil, i.e., disabling emacs-guix from using the additional Internal REPL (#<buffer *Guix\ Internal\ REPL*>).

The Internal REPL gave me trouble in another bug as well. I'll need to try to get a better understanding of how the magic of the Internal REPL works and how it could be messing this up.

-- 
Christopher Howard