01/04: guix package: '--upgrade' no longer reverses package order.

[Ludovic Courtès]

civodul pushed a commit to branch master
in repository guix.

commit eca16a3d1d9e6b2c064e0105c1015258bf2755f2
Author: Ludovic Courtès <address@hidden>
Date:   Sat Oct 7 15:44:23 2017 +0200

    guix package: '--upgrade' no longer reverses package order.
    
    Reported by Oleg Pykhalov <address@hidden>
    at <https://lists.gnu.org/archive/html/help-guix/2017-10/msg00000.html>.
    
    * guix/scripts/package.scm (options->installable)[upgraded]: Use
    'fold-right' instead of 'fold'.
---
 guix/scripts/package.scm | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/guix/scripts/package.scm b/guix/scripts/package.scm
index 4adc705..0e36501 100644
--- a/guix/scripts/package.scm
+++ b/guix/scripts/package.scm
@@ -604,12 +604,12 @@ and upgrades."
     (options->upgrade-predicate opts))
 
   (define upgraded
-    (fold (lambda (entry transaction)
-            (if (upgrade? (manifest-entry-name entry))
-                (transaction-upgrade-entry entry transaction)
-                transaction))
-          transaction
-          (manifest-entries manifest)))
+    (fold-right (lambda (entry transaction)
+                  (if (upgrade? (manifest-entry-name entry))
+                      (transaction-upgrade-entry entry transaction)
+                      transaction))
+                transaction
+                (manifest-entries manifest)))
 
   (define to-install
     (filter-map (match-lambda