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#################################################################
#  
# A simple script used to rebuild benchmarks using fsc and then run them.
# If you need to rebuild, use: 
# 
#   ./bench <arguments>
# 
# Omitting <arguments> will print more information.
# If you don't want to rebuild:
# 
#   ./bench skip <same-args-as-above>
#
#################################################################


TOP_DIR=$PWD
# build/pack for ant, target/pack for sbt
SCALA_BUILD_DIR=../../target/pack 
SRC_DIR=src/
TARGET_DIR=target
CLASS_DIR=$TARGET_DIR/classes

FSC=$SCALA_BUILD_DIR/bin/fsc
SCALA_LIBS_PATH=$SCALA_BUILD_DIR/lib
CLASSPATH=$SCALA_LIBS_PATH/scala-library.jar:lib/jsr166_and_extra.jar

ARTIFACT=benchmarks.jar
ARTIFACT_PATH=$TARGET_DIR/$ARTIFACT


if [ "$1" != "skip" ]
then
  # fetch source file list
  find $SRC_DIR -name *.scala -print > source.list
  
  # recompile with fsc
  $FSC -cp $CLASSPATH -d $CLASS_DIR @source.list
  
  # copy files
  cd $SRC_DIR
  cp -r * ../$CLASS_DIR
  cd ..
  
  # jar it up
  rm $ARTIFACT_PATH
  cd $CLASS_DIR
  jar cf $ARTIFACT .
  mv $ARTIFACT $TOP_DIR/$ARTIFACT_PATH
  cd $TOP_DIR
fi

# run a benchmark
RUNCOMMAND="java -Xms256m -Xmx512m -server -cp $CLASSPATH:$ARTIFACT_PATH scala.collection.parallel.Benchmarking "
if [ "$1" != skip ]
then
  $RUNCOMMAND "$@"
else
  $RUNCOMMAND $2 $3 $4 $5 $6 $7 $8
fi