From 204d34ff961d6dabf18b255decc29712e03afef0 Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Wed, 9 Mar 2016 18:34:04 +0100
Subject: substitute: Error out on unsupported URL schemes.

Reported in <http://bugs.gnu.org/22937>
by Chris Marusich <cmmarusich@gmail.com>.

* guix/scripts/substitute.scm (fetch): Add 'else' case and call 'leave'.
---
 guix/scripts/substitute.scm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/guix/scripts/substitute.scm b/guix/scripts/substitute.scm
index 01cc3f129e..0a716a95fd 100755
--- a/guix/scripts/substitute.scm
+++ b/guix/scripts/substitute.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Nikita Karetnikov <nikita@karetnikov.org>
 ;;;
 ;;; This file is part of GNU Guix.
@@ -204,7 +204,10 @@ to the caller without emitting an error message."
                (set! port (open-socket-for-uri uri))
                (unless buffered?
                  (setvbuf port _IONBF)))
-             (http-fetch uri #:text? #f #:port port))))))))
+             (http-fetch uri #:text? #f #:port port))))))
+    (else
+     (leave (_ "unsupported substitute URI scheme: ~a~%")
+            (uri->string uri)))))
 
 (define-record-type <cache-info>
   (%make-cache-info url store-directory wants-mass-query?)
-- 
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