From eba7bd8d46e5e3a628a57b564d6a332134a99f3c Mon Sep 17 00:00:00 2001
From: Roman Gorshunov <roman.gorshunov@att.com>
Date: Mon, 21 May 2018 18:04:29 +0200
Subject: [PATCH] Assume "yes" for settings detection

Completely lazy mode without any questions asked if launched with "-y" option.

Change-Id: Ib4925a00989553a0bb829b9dedb8a0fc485d7ab3
---
 .../dev_single_node/airship-in-a-bottle.sh    | 32 ++++++++++++++-----
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/manifests/dev_single_node/airship-in-a-bottle.sh b/manifests/dev_single_node/airship-in-a-bottle.sh
index 9f7582b7..9ab841c1 100755
--- a/manifests/dev_single_node/airship-in-a-bottle.sh
+++ b/manifests/dev_single_node/airship-in-a-bottle.sh
@@ -22,6 +22,19 @@
 #                                                                             #
 ###############################################################################
 
+usage ()
+{
+  echo "Usage: $(basename $0) {-y|-h}" 1>&2
+  echo "       -y                     don't ask questions, trust autodetection" 1>&2
+  echo "       -h                     this help" 1>&2
+}
+# See how we were called.
+case "$1" in
+  ""     ) ;;
+  "-y"   ) ASSUME_YES=1;;
+  "-h"|* ) usage; exit 1;;
+esac
+
 echo ""
 echo "Welcome to Airship in a Bottle"
 echo ""
@@ -68,15 +81,18 @@ sleep 1
 
 # IP and Hostname setup
 HOST_IFACE=$(ip route | grep "^default" | head -1 | awk '{ print $5 }')
-read -p "Is your HOST IFACE $HOST_IFACE? (Y/n) " YN_HI
-if [[ ! "$YN_HI" =~ ^([yY]|"")$ ]]; then
-  read -p "What is your HOST IFACE? " HOST_IFACE
-fi
-
 LOCAL_IP=$(ip addr | awk "/inet/ && /${HOST_IFACE}/{sub(/\/.*$/,\"\",\$2); print \$2}")
-read -p "Is your LOCAL IP $LOCAL_IP? (Y/n) " YN_IP
-if [[ ! "$YN_IP" =~ ^([yY]|"")$ ]]; then
-  read -p "What is your LOCAL IP? " LOCAL_IP
+
+if [[ $ASSUME_YES -ne 1 ]]; then
+  read -p "Is your HOST IFACE $HOST_IFACE? (Y/n) " YN_HI
+  if [[ ! "$YN_HI" =~ ^([yY]|"")$ ]]; then
+    read -p "What is your HOST IFACE? " HOST_IFACE
+  fi
+
+  read -p "Is your LOCAL IP $LOCAL_IP? (Y/n) " YN_IP
+  if [[ ! "$YN_IP" =~ ^([yY]|"")$ ]]; then
+    read -p "What is your LOCAL IP? " LOCAL_IP
+  fi
 fi
 
 # Shells out to get the hostname for the single-node deployment to avoid some