From 8655bf0e6efdd3d87a5ed149be2ee5e3aa8473db Mon Sep 17 00:00:00 2001
From: Anthony Young <sleepsonthefloor@gmail.com>
Date: Mon, 7 Nov 2011 16:37:00 -0600
Subject: [PATCH] more checks to make sure script is run as intended

---
 tools/warm_apts_and_pips.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/tools/warm_apts_and_pips.sh b/tools/warm_apts_and_pips.sh
index c0b02b9..b20519f 100755
--- a/tools/warm_apts_and_pips.sh
+++ b/tools/warm_apts_and_pips.sh
@@ -1,5 +1,11 @@
 #!/usr/bin/env bash
 
+# echo commands
+set -o xtrace
+
+# exit on error to stop unexpected errors
+set -o errexit
+
 # Keep track of the current directory
 TOOLS_DIR=$(cd $(dirname "$0") && pwd)
 TOP_DIR=`cd $TOOLS_DIR/..; pwd`
@@ -20,6 +26,12 @@ if ! qemu-img info $1 | grep -q "file format: raw"; then
     exit 1
 fi
 
+# Make sure we are in the correct dir
+if [ ! -d files/apts ]; then
+    echo "Please run this script from devstack/tools/"
+    exit 1
+fi 
+
 # Mount the image
 STAGING_DIR=`mktemp -d uec.XXXXXXXXXX`
 mkdir -p $STAGING_DIR