[bug#45984] [PATCH 2/5] import: hackage: Return 'values'.

[zimoun]

Fixes partially <https://bugs.gnu.org/44115>.

* guix/import/hackage.scm (hackage->guix-package): Return 'values'.
(hackage-recursive-import): Fix number of arguments.
---
 guix/import/hackage.scm | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/guix/import/hackage.scm b/guix/import/hackage.scm
index 6ca4f65cb0..30769cd255 100644
--- a/guix/import/hackage.scm
+++ b/guix/import/hackage.scm
@@ -4,6 +4,7 @@
 ;;; Copyright © 2016 Nikita <nikita@n0.is>
 ;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
 ;;; Copyright © 2019 Robert Vollmert <rob@vllmrt.net>
+;;; Copyright © 2019 Simon Tournier <zimon.toutoune@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -335,17 +336,20 @@ respectively."
                 (if port
                     (read-cabal-and-hash port)
                     (hackage-fetch-and-hash package-name))))
-    (and=> cabal-meta (compose (cut hackage-module->sexp <> cabal-hash
-                                    #:include-test-dependencies?
-                                    include-test-dependencies?)
-                               (cut eval-cabal <> cabal-environment)))))
+    (if cabal-meta
+        ((compose (cut hackage-module->sexp <> cabal-hash
+                             #:include-test-dependencies?
+                             include-test-dependencies?)
+                        (cut eval-cabal <> cabal-environment))
+         cabal-meta)
+        (values #f '()))))
 
 (define hackage->guix-package/m                   ;memoized variant
   (memoize hackage->guix-package))
 
 (define* (hackage-recursive-import package-name . args)
-  (recursive-import package-name #f
-                    #:repo->guix-package (lambda (name repo)
+  (recursive-import package-name
+                    #:repo->guix-package (lambda* (name #:key version repo)
                                            (apply hackage->guix-package/m
                                                   (cons name args)))
                     #:guix-name hackage-name->package-name))
-- 
2.29.2