#!/usr/bin/env bash
 

 # **exercise.sh**
 

 # Keep track of the current DevStack directory.

 TOP_DIR=$(cd $(dirname "$0") && pwd)
 

 # Import common functions
 source $TOP_DIR/functions
 

 # Load local configuration
 source $TOP_DIR/stackrc
 

 # Run everything in the exercises/ directory that isn't explicitly disabled
 
 # comma separated list of script basenames to skip

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

 SKIP_EXERCISES=${SKIP_EXERCISES:-""}
 

 # 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=""
 failures=""
 skips=""
 
 # Loop over each possible script (by basename)

 for script in $basenames; do

     if [[ ,$SKIP_EXERCISES, =~ ,$script, ]]; then

         skips="$skips $script"

     else

         echo "====================================================================="

         echo Running $script

         echo "====================================================================="

         $EXERCISE_DIR/$script.sh

         exitcode=$?
         if [[ $exitcode == 55 ]]; then
             skips="$skips $script"

         elif [[ $exitcode -ne 0 ]]; then

             failures="$failures $script"

         else

             passes="$passes $script"

         fi
     fi
 done

 # Output status of exercise run

 echo "====================================================================="

 for script in $skips; do

     echo SKIP $script
 done

 for script in $passes; do

     echo PASS $script
 done

 for script in $failures; do

     echo FAILED $script
 done

 echo "====================================================================="

 if [[ -n "$failures" ]]; then

     exit 1
 fi