From e72f50a7873b3233a8f962a7374e1219d0426230 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Thu, 25 Feb 2016 16:49:11 +0100
Subject: [PATCH] http-client: 'http-fetch/cached' updates the cache
 atomically.

* guix/http-client.scm (http-fetch/cached)[update-cache]: Use
'with-atomic-file-output' instead of 'call-with-output-file'.
---
 guix/http-client.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index 31b511eb1c..b26795c64d 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -291,7 +291,7 @@ Raise an '&http-get-error' condition if downloading fails."
       ;; Update the cache and return an input port.
       (let ((port (http-fetch uri #:text? text?)))
         (mkdir-p directory)
-        (call-with-output-file file
+        (with-atomic-file-output file
           (cut dump-port port <>))
         (close-port port)
         (open-input-file file)))