#!/usr/bin/env bash
#  vim:ts=4:sts=4:sw=4:et
#
#  Author: Hari Sekhon
#  Date: 2017-08-24 15:40:04 +0200 (Thu, 24 Aug 2017)
#
#  https://github.com/HariSekhon/DevOps-Bash-tools
#
#  License: see accompanying Hari Sekhon LICENSE file
#
#  If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
#
#  https://www.linkedin.com/in/HariSekhon
#

set -euo pipefail
[ -n "${DEBUG:-}" ] && set -x

SBT_VERSION="${SBT_VERSION:-1.3.10}"

if [ -z "$JAVA_HOME" ]; then
    echo "\$JAVA_HOME not set!"
    exit 1
fi

# unreliable that HOME is set, ensure shell evaluates to the right thing before we use it
[ -n "${HOME:-}" ] || HOME=~

#JAR="$HOME/.sbt/sbt-launch-$SBT_VERSION.jar"

bootdir="$HOME/.sbt/boot"

mkdir -vp "$bootdir"

if ! test -d "$bootdir/sbt-$SBT_VERSION"; then
    #URL="https://dl.bintray.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/$SBT_VERSION/sbt-launch.jar"
    #URL="https://dl.bintray.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/$SBT_VERSION/jars/sbt-launch.jar"
    URL=https://piccolo.link/sbt-1.3.3.tgz
    echo "Downloading sbt $SBT_VERSION from $URL"
    pushd "$bootdir"
    wget -O "sbt.tgz" "$URL"
    tar zxf "sbt.tgz"
    mv -- sbt "sbt-$SBT_VERSION"
    #mv sbt/bin/sbt-launcher.jar "$JAR"
    rm -f -- "sbt.tgz"
    popd
fi

# calling launcher manually is not necessary
#exec "$JAVA_HOME/bin/java" \
#    "${JVM_ARGS:-}" \
#    -d64 \
#    -noverify \
#    -Dfile.encoding=UTF8 \
#    -Dsbt.boot.directory="$HOME/.sbt/boot" \
#    -Xmx1024M -Xss1M -XX:MaxPermSize=256m \
#    -XX:+CMSClassUnloadingEnabled \
#    -jar "$JAR" "$@"

exec "$bootdir/sbt-$SBT_VERSION/bin/sbt" "$@"