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-rw-r--r--guix/scripts/style.scm2
1 files changed, 2 insertions, 0 deletions
diff --git a/guix/scripts/style.scm b/guix/scripts/style.scm
index 145cd09881..211980dc1c 100644
--- a/guix/scripts/style.scm
+++ b/guix/scripts/style.scm
@@ -625,6 +625,8 @@ Update package definitions to the latest style.\n"))
opts)))
(unless (eq? format-package-definition style)
(warning (G_ "'--styling' option has no effect in whole-file mode~%")))
+ (when (null? files)
+ (warning (G_ "no files specified, nothing to do~%")))
(for-each format-whole-file files))
(let ((packages (filter-map (match-lambda
(('argument . spec)