-if ! yum -q install --assumeyes \
- python27-python-arvados-python-client python27-python-arvados-fuse arvados-node-manager
-then
- exit 1
+
+rpm -qa | sort > /arvados/packages/centos6/$1.before
+
+yum install --assumeyes $1
+
+rpm -qa | sort > /arvados/packages/centos6/$1.after
+
+set +e
+diff /arvados/packages/centos6/$1.before /arvados/packages/centos6/$1.after > /arvados/packages/centos6/$1.diff
+set -e
+
+SCL=""
+if scl enable python27 true 2>/dev/null ; then
+ SCL="scl enable python27"