[bug#42793] adding git fetch origin keyring:keyring to contributing.texi

[Joshua Branson via Guix-patches via <guix-patches@gnu.org>]

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Hello,

I recently followed the guix manual guide for building guix from git
(great work by the way.  That is an awesome guide).  However, when I
tried to run "make authenticate", or "guix authenticate", or guix git
authenticate 9edb3f66fd807b096b48283debdcddccfea34bad \ "BBB0 2DDF
2CEA F6A8 0D1D E643 A2A0 6DF2 A33A 54FA", I got this error:

guix git: error: Git error: cannot locate remote-tracking branch 'keyring'

After running

#BEGIN_SRC sh
git fetch origin keyring:keyring
#END_SRC

Everything worked.

Thanks,

Joshua


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From 9d5d74c1c481a73657e6da046d2db80bbd2fe150 Mon Sep 17 00:00:00 2001
From: Joshua Branson <jbranso@dismail.de>
Date: Mon, 10 Aug 2020 05:20:30 -0400
Subject: [PATCH] doc: add command to fetch keyring branch

* doc/contributing.texi (Building from Git): I added a command to fetch the
keyring branch.  Without this command, users may not be able to authenticate
guix.
---
 doc/contributing.texi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doc/contributing.texi b/doc/contributing.texi
index f5d73e78aa..15c9a0f360 100644
--- a/doc/contributing.texi
+++ b/doc/contributing.texi
@@ -49,6 +49,7 @@ and OpenPGP fingerprint of the @dfn{channel introduction}
 @c The commit and fingerprint below must match those of the channel
 @c introduction in '%default-channels'.
 @example
+git fetch origin keyring:keyring
 guix git authenticate 9edb3f66fd807b096b48283debdcddccfea34bad \
   "BBB0 2DDF 2CEA F6A8 0D1D  E643 A2A0 6DF2 A33A 54FA"
 @end example
-- 
2.28.0