mkdir -p .cache

cd .cache

if [ ! -f google-java-format-1.7-all-deps.jar ]

curl -LJO "https://github.com/google/google-java-format/releases/download/google-java-format-1.7/google-java-format-1.7-all-deps.jar"

chmod 755 google-java-format-1.7-all-deps.jar

cd ..

changed_java_files=$(git diff --cached --name-only --diff-filter=ACMR | grep ".*java$" )

echo $changed_java_files

java -jar .cache/google-java-format-1.7-all-deps.jar --replace $changed_java_files