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-rw-r--r--guix/store/deduplication.scm7
1 files changed, 5 insertions, 2 deletions
diff --git a/guix/store/deduplication.scm b/guix/store/deduplication.scm
index ab982e3b3d..acb6ffcc4a 100644
--- a/guix/store/deduplication.scm
+++ b/guix/store/deduplication.scm
@@ -1,6 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Caleb Ristvedt <caleb.ristvedt@cune.org>
-;;; Copyright © 2018-2021 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2018-2022 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -262,7 +262,10 @@ down the road."
(deduplicate file (dump-and-compute-hash) #:store store)
(call-with-output-file file
(lambda (output)
- (dump-port input output size)))))
+ (if (file-port? input)
+ (sendfile output input size 0)
+ (dump-port input output size
+ #:buffer-size %deduplication-minimum-size))))))
(define* (copy-file/deduplicate source target
#:key (store (%store-directory)))