Smack/repl

#!/usr/bin/env bash
set -e
set -u
set -o pipefail

JDWP=false
JDWP_PORT=8000

while getopts djp: OPTION "$@"; do
    case $OPTION in
	d)
	    set -x
	    ;;
	j)
		JDWP=true
		;;
	p)
		JDWP_PORT=$OPTARG
		;;
    esac
done

EXTRA_JAVA_ARGS=()
if $JDWP; then
	EXTRA_JAVA_ARGS+=("-Xdebug")
	EXTRA_JAVA_ARGS+=("-Xrunjdwp:server=y,transport=dt_socket,address=${JDWP_PORT},suspend=n")
fi

PROJECT_ROOT=$(dirname "${BASH_SOURCE[0]}")
cd "${PROJECT_ROOT}"

echo "Compiling and computing classpath (May take a while)"
# Sadly even with the --quiet option Gradle (or some component of)
# will print the number of warnings/errors to stdout if there are
# any. So the result could look like
# 52 warnings\n1 warning\n12 warnings\n
# /smack/smack-repl/build/classes/main:/smack/smack-repl/build/
# resources/main:/smack/smack-tcp/build/libs/smack-tcp-4.2.0-alpha4-SNAPSHOT.jar
# So perform a "tail -n1" on the output of gradle
GRADLE_CLASSPATH="$(gradle :smack-repl:printClasspath --quiet |\
	tail -n1)"
echo "Finished, starting REPL"

java "${EXTRA_JAVA_ARGS[@]}" \
	-Dscala.usejavacp=true \
	-classpath "${GRADLE_CLASSPATH}" \
	ammonite.Main \
	--predef "smack-repl/scala.repl"