From 755177bbfcf4c46ad1ac31ad9501a6c8725b1a68 Mon Sep 17 00:00:00 2001
From: Kerin Millar <kfm@plushkava.net>
Date: Sun, 2 Jun 2024 04:36:27 +0100
Subject: Add the warn() function

This will be used internally by a forthcoming commit.

Signed-off-by: Kerin Millar <kfm@plushkava.net>
---
 functions.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/functions.sh b/functions.sh
index 9736747..a97dde7 100644
--- a/functions.sh
+++ b/functions.sh
@@ -473,6 +473,14 @@ vewend()
 	fi
 }
 
+#
+# Prints a diagnostic message prefixed with the basename of the running script.
+#
+warn()
+{
+	printf '%s: %s\n' "${0##*/}" "$*" >&2
+}
+
 #
 # Determines whether the first parameter is truthy. The values taken to be true
 # are "yes", "true", "on" and "1", whereas their opposites are taken to be
-- 
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