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Re: Using the Guile json module in a gexp
From: |
Ludovic Courtès |
Subject: |
Re: Using the Guile json module in a gexp |
Date: |
Mon, 11 Sep 2017 14:12:34 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Hello!
Christopher Baines <address@hidden> skribis:
> So I'm having some trouble using the Guile json module in a gexp.
> I've added (with-imported-modules '((json)) ...), and the
> module-import-compiled builder crashes.
>
> Backtrace:
> 4 (primitive-load "/gnu/store/35zv0m9wwd2nz3agyywv09d3k5v?")
> In srfi/srfi-1.scm:
> 640:9 3 (for-each #<procedure c10700 at ice-9/eval.scm:333:13 ?> ?)
> In ice-9/eval.scm:
> 245:16 2 (_ #(#(#<directory (guix build utils) 83f6e0> "/gn?") #))
> In ice-9/boot-9.scm:
> 1519:24 1 (_ "./json.scm")
> In unknown file:
> 0 (stat "./json.scm" #<undefined>)
>
> ERROR: In procedure stat:
> ERROR: In procedure stat: No such file or directory: "./json.scm"
This would have the effect of importing the (json) module of the host
environment into the build environment, which is not desirable for a
couple of reasons:
1. It would require having Guile-JSON installed in the host
environment, and the right version of it.
2. It would hinder reproducibility since different users may have
different Guile-JSON variants installed on the host side.
To overcome this, you have to do like (guix scripts package) does:
#~(begin
(add-to-load-path #$(file-append guile-json
"/share/guile/site/"
(effective-version)))
…)
It would be nice to simplify this somehow, though.
HTH!
Ludo’.