[bug#44038] [PATCH] Fix deprecation warning for origin-sha256

[Ludovic Courtès]

Hi,

Helio Machado <0x2b3bfa0@gmail.com> skribis:

> This patch fixes the following build-time deprecation warning:
>
>     guix/import/print.scm:77:21: warning: 'origin-sha256' is deprecated,
> use 'origin-hash' instead

Thanks for looking into it!  The deprecation warning is a bit confusing
though in this case because ‘origin-hash’ is not exactly a drop-in
replacement for ‘origin-sha256’, as can be seen in the manual, so this
patch wouldn’t have the desired effect.

Instead, ‘print.scm’ could be changed to emit a (sha256 …) form when the
<content-hash> object is indeed a sha256 hash, and otherwise use a (hash
…) form.

See
<https://guix.gnu.org/manual/devel/en/html_node/origin-Reference.html#index-content_002dhash>.

Thanks,
Ludo’.