From 76b410bf38132c6f0bd8a7e31206d604f9ea6717 Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Thu, 1 Sep 2016 13:48:15 +0200
Subject: cfg-add-nics: this script only modifies config.rc if needed

This one runs check-new-if and only updates config.rc if anything new
was detected. This avoids touching the file for no reason, and will not
cause issues with save-etc.
---
 cfg-add-nics | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100755 cfg-add-nics

diff --git a/cfg-add-nics b/cfg-add-nics
new file mode 100755
index 0000000..c53eb0e
--- /dev/null
+++ b/cfg-add-nics
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+[ -x /sbin/check-new-if ] || exit 0
+
+TMP=$(mktemp -q)
+[ -e "$TMP" ] || exit 1
+
+echo "Checking for new network interfaces."
+if /sbin/check-new-if >> "$TMP" &&
+   ! cmp -s /etc/config.rc "$TMP"; then
+	echo "Updating configuration."
+	cat "$TMP" > /etc/config.rc
+fi
+rm -f "$TMP"
+exit 0
-- 
1.7.12.1