From a1b46bdc069e6e3bbc5b171fafbc40213611ff1f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Sun, 25 Jun 2017 22:16:58 +0200
Subject: [PATCH] guix package: Warn about packages that no longer exist.

Fixes <http://bugs.gnu.org/27261>.
Reported by Mark H Weaver <mhw@netris.org>.

* guix/scripts/package.scm (transaction-upgrade-entry): Add call to
'warning' when NAME cannot be found in the package set.
---
 guix/scripts/package.scm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 4834da9271..1f835ca5a5 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -321,6 +321,7 @@ of relevance scores."
                      (package->manifest-entry pkg output)
                      transaction))))))))
        (#f
+        (warning (G_ "package '~a' no longer exists~%") name)
         transaction)))))