Re: Help with G-expression

[zimoun <zimon.toutoune@gmail.com>]

Hi Ludo,

On Fri, 02 Dec 2022 at 10:09, Ludovic Courtès <ludo@gnu.org> wrote:
> zimoun <zimon.toutoune@gmail.com> skribis:
>
>> no code for module (guix config)
>
> (guix config) is added by using ‘make-config.scm’; there’s an example in
> (gnu services base).
>
> For the rest, make sure to use ‘source-module-closure’ or you’ll miss
> modules (info "(guix) G-Expressions").

I have read this section. :-) Something is not clear for me.

Note that ’make-config.scm’ does not appear in the manual.

The only difference between the previous ’work’ example and all the
’fail’ as ’fail-again-not-fixed’ is only the part ’with-imported-modules’.

Well, I am somehow surprised how difficult is to find the correct.

--8<---------------cut here---------------start------------->8---
scheme@(guix-user)> (define (fail-again-not-fixed)
  (with-imported-modules (source-module-closure
                          '((guix build utils)
                            (guix config)
                            (guix profiles)))  ;import it
    (computed-file "empty-tree"
                   #~(begin
                       ;; Put it in scope.
                       (use-modules (guix build utils))

                       ;; Happily use its 'mkdir-p' procedure.
                       (mkdir-p (string-append #$output "/a/b/c"))))))
scheme@(guix-user)> ,build (fail-again-not-fixed)
While executing meta-command:
Throw to key `match-error' with args `("match" "no matching pattern" (#:declarative? #f #:export (%guix-package-name %guix-version %guix-bug-report-address %guix-home-page-url %channel-metadata %system %store-directory %state-directory %store-database-directory %config-directory %gzip %bzip2 %xz)))'.
--8<---------------cut here---------------end--------------->8---

Here it is the same error as ’fail-again’.  And I do not understand the
magic invocation.  Well, what I tried next:

--8<---------------cut here---------------start------------->8---
scheme@(guix-user)> (define (fail-again-bis)
  (with-imported-modules `(((guix config) => ,(make-config.scm))
                           ,@(source-module-closure '((guix build utils)
                                                      (guix profiles))
                                                    #:select? not-config?))
    (computed-file "empty-tree"
                   #~(begin
                       ;; Put it in scope.
                       (use-modules (guix build utils))

                       ;; Happily use its 'mkdir-p' procedure.
                       (mkdir-p (string-append #$output "/a/b/c"))))))
;;; <unknown-location>: warning: possibly unbound variable `make-config.scm'
;;; <unknown-location>: warning: possibly unbound variable `not-config?'
scheme@(guix-user)> ,build (fail-again-bis)
While executing meta-command:
error: make-config.scm: unbound variable
scheme@(guix-user)> ,use(guix self)
scheme@(guix-user)> ,build (fail-again-bis)
While executing meta-command:
error: not-config?: unbound variable
scheme@(guix-user)> (define not-config?
  ;; Select (guix …) and (gnu …) modules, except (guix config).
  (match-lambda
    (('guix 'config) #f)
    (('guix rest ...) #t)
    (('gnu rest ...) #t)
    (rest #f)))
scheme@(guix-user)> ,build (fail-again-bis)
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
substitute: updating substitutes from 'https://bordeaux.guix.gnu.org'... 100.0%
building /gnu/store/xjvjrkl3559jrlm0bnvdj29c838y81x3-config.scm.drv...
building /gnu/store/slwgyy4vnxprz0cj73vyq6psr7bqmbwz-module-import.drv...
building /gnu/store/cfjpfzph97dsishvr7g1bqxqw5kynns8-module-import-compiled.drv...
 20% [#############################                                                                                                                         ]builder for `/gnu/store/cfjpfzph97dsishvr7g1bqxqw5kynns8-module-import-compiled.drv' failed with exit code 1
build of /gnu/store/cfjpfzph97dsishvr7g1bqxqw5kynns8-module-import-compiled.drv failed
View build log at '/var/log/guix/drvs/cf/jpfzph97dsishvr7g1bqxqw5kynns8-module-import-compiled.drv.gz'.
cannot build derivation `/gnu/store/pr3qqw26jilyhyn650i3w7z13i7k6p40-empty-tree.drv': 1 dependencies couldn't be built
While executing meta-command:
ERROR:
  1. &store-protocol-error:
      message: "build of `/gnu/store/pr3qqw26jilyhyn650i3w7z13i7k6p40-empty-tree.drv' failed"
      status: 100
--8<---------------cut here---------------end--------------->8---
      
Below the log file – missing (gcrypt hash).

Well, I give up because the try-error does not explain me how it
works. :-)

Any pointers?

Cheers,
simon

--8<---------------cut here---------------start------------->8---
[ 1/56] Loading './guix/base16.scm'...
[ 2/56] Loading './guix/base32.scm'...
[ 3/56] Loading './guix/base64.scm'...
[ 4/56] Loading './guix/build/syscalls.scm'...
[ 5/56] Loading './guix/build/utils.scm'...
[ 6/56] Loading './guix/build-system.scm'...
[ 7/56] Loading './guix/colors.scm'...
[ 8/56] Loading './guix/combinators.scm'...
[ 9/56] Loading './guix/config.scm'...
[10/56] Loading './guix/deprecation.scm'...
[11/56] Loading './guix/derivations.scm'...
;;; Failed to autoload make-zlib-input-port in (zlib):
;;; no code for module (zlib)
;;; Failed to autoload make-zlib-input-port in (zlib):
;;; no code for module (zlib)
;;; Failed to autoload make-zlib-output-port in (zlib):
;;; no code for module (zlib)
;;; Failed to autoload make-zlib-output-port in (zlib):
;;; no code for module (zlib)
Backtrace:
In ice-9/boot-9.scm:
  3556:26 19 (_)
In unknown file:
          18 (primitive-load-path "guix/store" #<procedure 7fffed89b?>)
In ice-9/eval.scm:
   721:20 17 (primitive-eval _)
In ice-9/psyntax.scm:
  1230:36 16 (expand-top-sequence _ _ _ #f _ _ _)
  1222:19 15 (parse _ (("placeholder" placeholder)) ((top) #(# # ?)) ?)
   259:10 14 (parse _ (("placeholder" placeholder)) (()) _ c&e (eval) ?)
In ice-9/eval.scm:
   293:34 13 (_ #<module (#{ g170}#) 7fffee23baa0>)
In ice-9/boot-9.scm:
   3409:4 12 (define-module* _ #:filename _ #:pure _ #:version _ # _ ?)
  3422:24 11 (_)
   222:29 10 (map1 _)
   222:29  9 (map1 _)
   222:29  8 (map1 _)
   222:29  7 (map1 _)
   222:29  6 (map1 _)
   222:29  5 (map1 (((guix monads)) ((guix records)) ((guix #)) (#) ?))
   222:29  4 (map1 (((guix records)) ((guix base16)) ((guix #)) (#) ?))
   222:29  3 (map1 (((guix base16)) ((guix base32)) ((gcrypt #)) # ?))
   222:29  2 (map1 (((guix base32)) ((gcrypt hash)) ((guix #)) (#) ?))
   222:17  1 (map1 (((gcrypt hash)) ((guix profiling)) ((rnrs #)) # ?))
   3329:6  0 (resolve-interface (gcrypt hash) #:select _ #:hide _ # _ ?)

ice-9/boot-9.scm:3329:6: In procedure resolve-interface:
no code for module (gcrypt hash)
--8<---------------cut here---------------end--------------->8---