dotr

#!/usr/bin/env bash

# Try to autodetect real location of the script

if [ -z "$PROG_HOME" ] ; then
  ## resolve links - $0 may be a link to PROG_HOME
  PRG="$0"

  # need this for relative symlinks
  while [ -h "$PRG" ] ; do
    ls=`ls -ld "$PRG"`
    link=`expr "$ls" : '.*-> \(.*\)$'`
    if expr "$link" : '/.*' > /dev/null; then
      PRG="$link"
    else
      PRG="`dirname "$PRG"`/$link"
    fi
  done

  saveddir=`pwd`

  PROG_HOME=`dirname "$PRG"`/..

  # make it fully qualified
  PROG_HOME=`cd "$PROG_HOME" && pwd`

  cd "$saveddir"
fi

addJvmOptions () {
  jvm_options+=("$1")
}

addDotcOptions () {
  java_options+=("$1")
}

source "$PROG_HOME/bin/common"

declare -a residual_args
execute_repl=false
execute_run=false
with_compiler=false
class_path_count=0
CLASS_PATH=""

# Little hack to check if all arguments are options
all_params="$*"
truncated_params="${*#-}"
# options_indicator != 0 if at least one parameter is not an option
options_indicator=$(( ${#all_params} - ${#truncated_params} - $# ))

while [[ $# -gt 0 ]]; do
  case "$1" in
    -repl)
      execute_repl=true
      shift
      ;;
    -run)
      execute_run=true
      shift
      ;;
    -classpath)
      CLASS_PATH="$2"
      class_path_count+=1
      shift
      shift
      ;;
    -with-compiler)
      with_compiler=true
      shift
      ;;
    -d)
      DEBUG="$DEBUG_STR"
      shift
      ;;
    -J*)
      addJvmOptions "${1:2}"
      addDotcOptions "${1}"
      shift ;;
    *)
      residual_args+=("$1")
      shift
      ;;

  esac
done
if [ $execute_repl == true ] || ([ $execute_run == false ] && [ $options_indicator == 0 ]); then
  if [ "$CLASS_PATH" ]; then
    cp_arg="-classpath \"$CLASS_PATH\""
  fi
  echo "Starting dotty REPL..."
  eval "\"$PROG_HOME/bin/dotc\" $cp_arg ${java_options[@]} -repl ${residual_args[@]}"
elif [ $execute_repl == true ] || [ ${#residual_args[@]} -ne 0 ]; then
  cp_arg="$DOTTY_LIB$PSEP$SCALA_LIB"
  if [ -z "$CLASS_PATH" ]; then
    cp_arg+="$PSEP."
  else
    cp_arg+="$PSEP$CLASS_PATH"
  fi
  if [ "$class_path_count" -gt 1 ]; then
    echo "warning: multiple classpaths are found, dotr only use the last one."
  fi
  if [ $with_compiler == true ]; then
    cp_arg+="$PSEP$DOTTY_COMP$PSEP$TASTY_CORE$PSEP$DOTTY_INTF$PSEP$SCALA_ASM$PSEP$DOTTY_STAGING$PSEP$DOTTY_TASTY_INSPECTOR"
  fi
  eval exec "\"$JAVACMD\"" "$DEBUG"  "-classpath \"$cp_arg\"" "${jvm_options[@]}" "${residual_args[@]}"
else
    echo "warning: command option is not correct."
fi