01/67: etc: committer: Support plain input lists.

[guix-commits]

rekado pushed a commit to branch master
in repository guix.

commit 67d74daf0c8b7b6d786859f0be659021f0a153d8
Author: Ricardo Wurmus <rekado@elephly.net>
AuthorDate: Sun Jan 23 13:29:07 2022 +0100

    etc: committer: Support plain input lists.
    
    * etc/committer.scm.in (change-commit-message): Support new-style plain list
    inputs in addition to old-style inputs with labels.
---
 etc/committer.scm.in | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/etc/committer.scm.in b/etc/committer.scm.in
index 1ad83e37d7..5a57d51577 100755
--- a/etc/committer.scm.in
+++ b/etc/committer.scm.in
@@ -215,7 +215,12 @@ corresponding to the top-level definition containing the 
staged changes."
   "Print ChangeLog commit message for changes between OLD and NEW."
   (define (get-values expr field)
     (match ((sxpath `(// ,field quasiquote *)) expr)
-      (() '())
+      (()
+       ;; New-style plain lists
+       (match ((sxpath `(// ,field list *)) expr)
+         ((inner) inner)
+         (_ '())))
+      ;; Old-style labelled inputs
       ((first . rest)
        (map cadadr first))))
   (define (listify items)