@@ -17,9 +17,19 @@ source $TOP_DIR/stackrc

 # to refrain from exercising euca.sh use SKIP_EXERCISES=euca

 SKIP_EXERCISES=${SKIP_EXERCISES:-""}

-# Locate the scripts we should run

-EXERCISE_DIR=$(dirname "$0")/exercises

-basenames=$(for b in `ls $EXERCISE_DIR/*.sh`; do basename $b .sh; done)

+# comma separated list of script basenames to run

+# to run only euca.sh use RUN_EXERCISES=euca

+basenames=${RUN_EXERCISES:-""}

+

+EXERCISE_DIR=$TOP_DIR/exercises

+

+if [ -z "${basenames}" ] ; then

+    # Locate the scripts we should run

+    basenames=$(for b in `ls $EXERCISE_DIR/*.sh`; do basename $b .sh; done)

+else

+    # If RUN_EXERCISES was specified, ignore SKIP_EXERCISES.

+    SKIP_EXERCISES=

+fi

 # Track the state of each script

 passes=""