Re: Guile code snippet

[Olivier Dion via <gwl-devel@gnu.org>]

On Thu, 21 Apr 2022, Ricardo Wurmus <rekado@elephly.net> wrote:
>>> This is now fixed with commit
>>> dceec9ecb9e24252ab9130f7a3626c00b2ff1a68.

I tried this:
--8<---------------cut here---------------start------------->8---
process foo
  packages "guile" "guile-fibers"
  # /bin/guile {
    (use-modules (fibers))
  }

workflow bar
  processes foo
--8<---------------cut here---------------end--------------->8---

and got:
#v+
info: .07 Loading workflow file `test.w'...
info: .75 Computing workflow `bar'...
run: 1.35 Executing: /bin/sh -c /gnu/store/4a49gb4b2ha7hms9jddkzf0d4hj5wqj5-gwl-foo.scm '((inputs) (outputs) (values) (name . "foo"))'
;;; Stat of /home/old/softwares/gwl/ (use-modules (fibers))  failed:
;;; In procedure stat: No such file or directory: "/home/old/softwares/gwl/ (use-modules (fibers)) "
Backtrace:
           0 (primitive-load "/home/old/softwares/gwl/ (use-modules ?")

ERROR: In procedure primitive-load:
In procedure open-file: No such file or directory:
"/home/old/softwares/gwl/ (use-modules (fibers)) "
#v-

seems like the interpreter is trying to stat the concatenation of
/bin/guile and the code.

Also tried this:
--8<---------------cut here---------------start------------->8---
process foo
  packages "guile" "guile-fibers"
  procedure
    . `(begin
        (use-modules (fibers)))


workflow bar
  processes foo
--8<---------------cut here---------------end--------------->8---

and got:
#v+
info: .08 Loading workflow file `test.w'...
info: .75 Computing workflow `bar'...
run: 1.35 Executing: /bin/sh -c /gnu/store/fp7fi4ksr16mlgwncdl38w9nw5a9kn15-gwl-foo.scm '((inputs) (outputs) (values) (name . "foo"))'
Backtrace:
           5 (primitive-load "/gnu/store/fp7fi4ksr16mlgwncdl38w9nw5a?")
In ice-9/eval.scm:
    619:8  4 (_ #(#(#(#(#(#(#(#<directory (guil?> ?) ?) ?) ?) ?) ?) ?))
In ice-9/boot-9.scm:
  3935:20  3 (process-use-modules _)
   222:17  2 (map1 (((fibers))))
  3936:31  1 (_ ((fibers)))
   3330:6  0 (resolve-interface (fibers) #:select _ #:hide _ #:prefix ?)

ice-9/boot-9.scm:3330:6: In procedure resolve-interface:
no code for module (fibers)
error: 1.39 process `foo' failed with return value 1.
#v-

Looks like GUILE_LOAD_PATH is not set.

-- 
Olivier Dion
oldiob.dev