From c0b6165d5b4cad19eee70b1cdbf85fd8d2a24c95 Mon Sep 17 00:00:00 2001
From: Nikolas Hermanns <nikolas.hermanns@ericsson.com>
Date: Wed, 31 Aug 2016 09:21:53 +0200
Subject: [PATCH] Adding caching possiblity

The user has now 2 new variables to control a cache.
CACHE
	true -> use cache if exsist and create cash
	false -> do not use cache
RENEW
	-> Only makes sense when cache is true
	true -> renews the cache
	false -> use the old cache

Change-Id: I8da91f6ec2937e6b6e0c66eabdfd41fac6a490b5
---
 pre_build_hook | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/pre_build_hook b/pre_build_hook
index aef0b59..c3ac564 100755
--- a/pre_build_hook
+++ b/pre_build_hook
@@ -4,7 +4,18 @@
 # like packages building, packages downloading from mirrors and so on.
 # The script should return 0 if there were no errors.
 set -eux
+CACHE=${CACHE:-false}
+RENEW=${RENEW:-false}
+DIR="$(dirname `readlink -f $0`)"
 
+if [ "$CACHE" == true ];then
+  export cache_dir=$DIR/.cache/;
+  if [ -e $cache_dir ] && [[ "$RENEW" == false ]];then
+    export OPNFV_QUAGGE_PACKAGING_REPO=$cache_dir/opnfv-quagga/;
+    export NETWORKING_ODL_REPO=$cache_dir/networking_odl/;
+    export ODL_TARBALL_LOCATION=$cache_dir/karaf-odl.tar.gz;
+  fi
+fi
 # Where we can find odl karaf distribution tarball
 # can be http(s) url or absolute path
 ODL_TARBALL_LOCATION=${ODL_TARBALL_LOCATION:-https://nexus.opendaylight.org/content/repositories/public/org/opendaylight/integration/distribution-karaf/0.4.3-Beryllium-SR3/distribution-karaf-0.4.3-Beryllium-SR3.tar.gz}
@@ -225,6 +236,14 @@ do
   build_pkg $system
 done
 
+if [ "$CACHE" == true ];then
+  if [ ! -e $cache_dir ] || [[ "$RENEW" == true ]];then
+    rm -rf $cache_dir
+    mkdir -p $cache_dir
+    cp -r ${DIR}/tmp/* $cache_dir/
+  fi
+fi
+
 if [ "$CLEANUP" != false ];then
   cleanup
 fi