From a326e3085da451c82ea461116ea1f59318f0f81d Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Sun, 16 Oct 2022 02:00:00 +0200
Subject: guix-install.sh: Warn if we suspect dodgy automation.
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This doesn't affect the installation (yet), but reserves the right to
default to safe values other than ‘y’ in future.

* etc/guix-install.sh (welcome): Warn if the ‘return’ wasn't.
---
 etc/guix-install.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'etc/guix-install.sh')

diff --git a/etc/guix-install.sh b/etc/guix-install.sh
index 43dea3b605..152accef77 100755
--- a/etc/guix-install.sh
+++ b/etc/guix-install.sh
@@ -581,6 +581,7 @@ fi
 
 welcome()
 {
+    local char
     cat<<"EOF"
     ░░░                                     ░░░
     ░░▒▒░░░░░░░░░               ░░░░░░░░░▒▒░░
@@ -607,7 +608,13 @@ This script installs GNU Guix on your system
 https://www.gnu.org/software/guix/
 EOF
     echo -n "Press return to continue..."
-    read -r
+    read -r char
+    if [ "$char" ]; then
+	echo
+	echo "...that ($char) was not a return!"
+	_msg "${WAR}Use newlines to automate installation, e.g.: yes '' | ${0##*/}"
+	_msg "${WAR}Any other method is unsupported and likely to break in future."
+    fi
 }
 
 main()
-- 
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