Clean up old build in Kraftwagen.

cleanup-builds.sh

  #!/bin/bash

DIR=`pwd`

if [ -d "$DIR/builds" ]
then

  CURRENT=`ls -1 builds | sort | tail -1`

  read -p "Do you want to remove all the old builds except $CURRENT (y/n)" -n 1 -s REMOVE_OLD_BUILDS
  echo ""

  if [ $REMOVE_OLD_BUILDS == "y" ]
  then

    for BUILD in $(ls -1 builds | sort)
    do
      # Remove build
      if [ "$BUILD" != "$CURRENT" ]
      then
        sudo rm -rf "$DIR/builds/$BUILD"
      fi
    done

    echo "Removed old builds" 
  else

    echo "Safe choice :)"

  fi

else

  echo "No builds dir found."
fi

I should check what the origina of the build folder is (check the symlink of build) to be sure not to remove the live version.