Script for storing / restoring cache in Java / Scala project on wercker

wercker_cache.sh

#!/bin/bash

#=========================================
# Script for storing and restoring cache
#   in Java / Scala project on werkcer
#=========================================

# cache directories
CACHES=( "ivy2" "sbt" )
CMD="$1"

# check if rsync exists
if ! type rsync > /dev/null; then
  echo "[ERROR] rsync needs to be installed."
  exit 1
fi

# set source and destination directories
case $CMD in
    "store")
        SRC=$HOME
        DST=$WERCKER_CACHE_DIR
        ;;
    "restore")
        SRC=$WERCKER_CACHE_DIR
        DST=$HOME
        ;;
esac

# run rsync
for cache in "${CACHES[@]}"; do
    if test -d $SRC/.$cache; then
        rsync -avz $SRC/.$cache $DST/
    fi
done