From 4feb589bf48cbbd2d524002456fa822acf856bc3 Mon Sep 17 00:00:00 2001
From: Pierre Neidhardt <mail@ambrevar.xyz>
Date: Wed, 10 Oct 2018 18:06:08 +0200
Subject: [PATCH] doc: Add recommendations for good origin URLs.

* doc/contributing.texi (Submitting Patches): URL recommendations.
---
 doc/contributing.texi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/doc/contributing.texi b/doc/contributing.texi
index 68d8e7e2fbd..91a87ef2dd4 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -468,6 +468,14 @@ Please follow our code formatting rules, possibly running the
 @command{etc/indent-code.el} script to do that automatically for you
 (@pxref{Formatting Code}).
 
+@item
+When possible, use mirrors in the source URL (@pxref{Invoking guix download}).
+Use reliable URLs, not generated ones.  For instance, GitHub archives are not
+necessarily identical from one generation to the next, so in this case it's
+often better to clone the repository.  Don't use the @command{name} field in
+the URL: it is not very useful and if the name changes, the URL will probably
+be wrong.
+
 @end enumerate
 
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