bug#74086: [PATCH] guix: import: hackage: Support updating to a specific version.

[Ludovic Courtès]

Hi,

Nicolas Graves <ngraves@ngraves.fr> skribis:

> * gnu/import/hackage.scm
> (hackage-fetch-and-hash, hackage-fetch): Support name and version
> argument.
> (import-release): New variable, formerly known as latest-release.
> Support updating to a specific version.

Nice.  Applied with the fix below (spotted a compiler warning).

Thanks,
Ludo’.

diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index e3ed98c089..422887d435 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -357,7 +357,7 @@ (define* (hackage->guix-package package-name #:key
   (let ((cabal-meta cabal-hash
                     (if port
                         (read-cabal-and-hash port)
-                        (hackage-fetch-and-hash package-name))))
+                        (hackage-fetch-and-hash package-name #f))))
     (if cabal-meta
         (hackage-module->sexp (eval-cabal cabal-meta cabal-environment)
                               cabal-hash