Properly handle configuration passing

I had misread my own code from the porkbun-ip-update script!
Updated script to take either "config" or "hosted_zone + domain" args.

If you're using the domain + hz you'll need to ensure AWS CLI is configured

1 files changed, 13 insertions, 6 deletions

diff --git a/update.sh b/update.sh
index ab023a7..d67006d 100755
--- a/update.sh
+++ b/update.sh
@@ -1,4 +1,4 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
 set -e
 
 # Not needed but useful to know
@@ -8,12 +8,19 @@ function aws_ip_check {
 	--query "ResourceRecordSets[?(Name == 'senders.io.' && Type == 'A')].ResourceRecords[0].Value | [0]" --output text
 }
 
-if [ $# -ne 2 ]; then
-    echo "Usage: ./update.sh HOSTED_ZONE_ID DOMAIN"
+if [ $# -lt 1 ]; then
+    echo "Usage: ./update.sh HOSTED_ZONE_ID DOMAIN
+       ./update.sh CONFIG_FILE
+"
+    exit 1
+fi
+if [ $# -eq 1 ]; then
+    source $1
+fi
+if [ $# -eq 2 ]; then
+    HOSTED_ZONE_ID=$1
+    DOMAIN=$2
 fi
-HOSTED_ZONE_ID=$1
-DOMAIN=$2
-source API_CONFIG
 RECORD_CHANGE_JSON=/tmp/aws-ip-update.json
 
 # Fetch IPs