# 
# 
# ScalaCheck update script.
# 
# 


# vars
TMPFILE=`mktemp`
SCALACHECK_REL_DIR=src/scalacheck
DESC="Updates ScalaCheck sources from ScalaCheck nightly branch."
WARN="Make sure your repository checkout is clean. Will remove and delete existing ScalaCheck source in <path-to-scala-repo>/$SCALACHECK_REL_DIR!"
USAGE="  Usage: updatescalacheck <path-to-scala-repo>"


# functions
function error() {
  rm $TMPFILE
  exit 1
}

function success() {
  rm $TMPFILE
  exit 0
}



# check num args
if [ $# -ne 1 ]
then
  echo $DESC
  echo $WARN
  echo "Must provide path to scala repo checkout dir."
  echo $USAGE
  error
fi

if [[ $1 = "--help" ]]
then
  echo $DESC
  echo $WARN
  echo $USAGE
  error
fi

if [ ! -d $1 ]
then
  echo "The folder $1 does not exist."
  error
fi

# go to scala dir
SCALA_DIR=$1
cd $SCALA_DIR

# 
# check if checkout is svn and up to date
# otherwise check if its git and up to date
# 
if [ -d .svn ] || [ -d _svn ]
then
  #
  # svn repo - check if clean
  #
  svn status > $TMPFILE
  if [ $? -ne 0 ]
  then
    echo "Detected .svn dir, but svn status returns an error. Check if this is really an .svn repo."
    error
  fi
  echo "svn status output: "
  cat $TMPFILE
  echo "grep found: "
  cat $TMPFILE | grep "^\(?\|A\|D\|M\|C\|!\|~\)"
  GREPRETCODE=$?
  echo "grep return code: $GREPRETCODE"
  if [ $GREPRETCODE -eq 0 ]
  then
    echo "Working directory does not seem to be clean. Do a clean checkout and try again."
    error
  fi
  echo "Checkout appears to be clean."
elif [ -d .git ]
then
  #
  # git repo - check if clean
  #
  git status --porcelain > $TMPFILE
  if [ $? -ne 0 ]
  then
    echo "Detected .git dir, but git status returns an error. Check if this is really a .git repo."
    error
  fi
  echo "git status output: "
  cat $TMPFILE
  echo "grep found: "
  cat $TMPFILE | grep "^\(A\|M\|D\|R\|C\|U\)"
  GREPRETCODE=$?
  echo "grep return code: $GREPRETCODE"
  if [ $GREPRETCODE -eq 0 ]
  then
    echo "Working directory does not seem to be clean. Do a clean checkout and try again."
    error
  fi
  echo "Checkout appears to be clean."
else
  # no repo detected
  echo "The directory $SCALA_DIR does not seem to be a repository."
  error
fi

# check if ScalaCheck source dir exists
if [ ! -d $SCALACHECK_REL_DIR ]
then
  echo "ScalaCheck source dir does not seem to exist in: $SCALA_DIR/$SCALACHECK_REL_DIR"
  echo "Please create one and try again."
  error
fi

# go to ScalaCheck source dir
cd $SCALACHECK_DIR

# update sources
svn export --force https://scalacheck.googlecode.com/svn/branches/scalanightly/src/main/scala .

# remove unneeded class
rm org/scalacheck/ScalaCheckFramework.scala

success