deduplicate: Use 'sendfile' only with file ports.v1.4.0rc2

Fixes a regression introduced in b129026e2e242e9068158ae6e6fcd8d7c5ea092e.

* guix/store/deduplication.scm (dump-file/deduplicate): Use 'sendfile'
only when INPUT' is a file port.

1 files changed, 4 insertions, 1 deletions

diff --git a/guix/store/deduplication.scm b/guix/store/deduplication.scm
index 9953675319a..acb6ffcc4a5 100644
--- a/guix/store/deduplication.scm
+++ b/guix/store/deduplication.scm
@@ -262,7 +262,10 @@ down the road."
       (deduplicate file (dump-and-compute-hash) #:store store)
       (call-with-output-file file
         (lambda (output)
-          (sendfile output input size 0)))))
+          (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)))