From e13586aa1ea09ca9279007c9990c7aafb4733c05 Mon Sep 17 00:00:00 2001
From: Adam Warner <me@adamwarner.co.uk>
Date: Sun, 10 Jul 2022 16:54:22 +0100
Subject: [PATCH] download macvendor.db on container start if it is missing
 from /etc/pihole (can happen in the case of a volume mount)

Signed-off-by: Adam Warner <me@adamwarner.co.uk>
---
 bash_functions.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bash_functions.sh b/bash_functions.sh
index 1ef674c..842e834 100644
--- a/bash_functions.sh
+++ b/bash_functions.sh
@@ -69,6 +69,12 @@ prepare_configs() {
     if [[ -e "${setupVars}" ]]; then
         cp -f "${setupVars}" "${setupVars}.update.bak"
     fi
+
+    #If the user has volume mounted /etc/pihole, then macvendor.db may be missing. See: https://github.com/pi-hole/docker-pi-hole/issues/1137
+    if [[ ! -f "/etc/pihole/macvendor.db" ]]; then
+        echo "Downloading missing macvendor.db"
+        curl -sSL "https://ftl.pi-hole.net/macvendor.db" -o "/etc/pihole/macvendor.db" || true
+    fi
 }
 
 validate_env() {