From 00dfff84c66c5c6aa4853684419a92befe55d4b4 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Tue, 15 Mar 2022 15:17:49 +0100
Subject: packages: 'modify-inputs' preserves outputs in 'replace' clauses.

Fixes <https://issues.guix.gnu.org/53915>.
Reported by Gordon Quad <gordon@niflheim.info>.

* guix/packages.scm (replace-input): Preserve the outputs of INPUT by
default.
* tests/packages.scm ("modify-inputs, replace, extra output"): New test.
---
 tests/packages.scm | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'tests/packages.scm')

diff --git a/tests/packages.scm b/tests/packages.scm
index 2cb90d3145..710eace6dc 100644
--- a/tests/packages.scm
+++ b/tests/packages.scm
@@ -1982,6 +1982,21 @@ (define (list->set* lst)
       ((("coreutils" input "out"))
        input))))
 
+(test-eq "modify-inputs, replace, extra output"
+  guile-3.0
+  ;; Replace an input; notice that its output is preserved.
+  ;; See <https://issues.guix.gnu.org/53915>.
+  (let* ((p1 (dummy-package "p"
+               (inputs (list `(,coreutils "debug")))))
+         (p2 (package
+               (inherit p1)
+               (version "1")
+               (inputs (modify-inputs (package-inputs p1)
+                         (replace "coreutils" guile-3.0))))))
+    (match (package-inputs p2)
+      ((("coreutils" input "debug"))
+       input))))
+
 (test-end "packages")
 
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