| #!/usr/bin/env bash |
| # |
| |
| # A library to simplify using the SBT launcher from other packages. |
| # Note: This should be used by tools like giter8/conscript etc. |
| |
| # TODO - Should we merge the main SBT script with this library? |
| |
| if test -z "$HOME"; then |
| declare -r script_dir="$(dirname "$script_path")" |
| else |
| declare -r script_dir="$HOME/.sbt" |
| fi |
| |
| declare -a residual_args |
| declare -a java_args |
| declare -a scalac_args |
| declare -a sbt_commands |
| declare -a maven_profiles |
| declare sbt_default_mem=2048 |
| |
| if test -x "$JAVA_HOME/bin/java"; then |
| echo -e "Using $JAVA_HOME as default JAVA_HOME." |
| echo "Note, this will be overridden by -java-home if it is set." |
| declare java_cmd="$JAVA_HOME/bin/java" |
| else |
| declare java_cmd=java |
| fi |
| |
| echoerr () { |
| echo 1>&2 "$@" |
| } |
| vlog () { |
| [[ $verbose || $debug ]] && echoerr "$@" |
| } |
| dlog () { |
| [[ $debug ]] && echoerr "$@" |
| } |
| |
| acquire_sbt_jar () { |
| SBT_VERSION=`awk -F "=" '/sbt\.version/ {print $2}' ./project/build.properties` |
| URL1=https://dl.bintray.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/${SBT_VERSION}/sbt-launch.jar |
| JAR=build/sbt-launch-${SBT_VERSION}.jar |
| |
| sbt_jar=$JAR |
| |
| if [[ ! -f "$sbt_jar" ]]; then |
| # Download sbt launch jar if it hasn't been downloaded yet |
| if [ ! -f "${JAR}" ]; then |
| # Download |
| printf "Attempting to fetch sbt\n" |
| JAR_DL="${JAR}.part" |
| if [ $(command -v curl) ]; then |
| curl --fail --location --silent ${URL1} > "${JAR_DL}" &&\ |
| mv "${JAR_DL}" "${JAR}" |
| elif [ $(command -v wget) ]; then |
| wget --quiet ${URL1} -O "${JAR_DL}" &&\ |
| mv "${JAR_DL}" "${JAR}" |
| else |
| printf "You do not have curl or wget installed, please install sbt manually from https://www.scala-sbt.org/\n" |
| exit -1 |
| fi |
| fi |
| if [ ! -f "${JAR}" ]; then |
| # We failed to download |
| printf "Our attempt to download sbt locally to ${JAR} failed. Please install sbt manually from https://www.scala-sbt.org/\n" |
| exit -1 |
| fi |
| printf "Launching sbt from ${JAR}\n" |
| fi |
| } |
| |
| execRunner () { |
| # print the arguments one to a line, quoting any containing spaces |
| [[ $verbose || $debug ]] && echo "# Executing command line:" && { |
| for arg; do |
| if printf "%s\n" "$arg" | grep -q ' '; then |
| printf "\"%s\"\n" "$arg" |
| else |
| printf "%s\n" "$arg" |
| fi |
| done |
| echo "" |
| } |
| |
| "$@" |
| } |
| |
| addJava () { |
| dlog "[addJava] arg = '$1'" |
| java_args=( "${java_args[@]}" "$1" ) |
| } |
| |
| enableProfile () { |
| dlog "[enableProfile] arg = '$1'" |
| maven_profiles=( "${maven_profiles[@]}" "$1" ) |
| export SBT_MAVEN_PROFILES="${maven_profiles[@]}" |
| } |
| |
| addSbt () { |
| dlog "[addSbt] arg = '$1'" |
| sbt_commands=( "${sbt_commands[@]}" "$1" ) |
| } |
| addResidual () { |
| dlog "[residual] arg = '$1'" |
| residual_args=( "${residual_args[@]}" "$1" ) |
| } |
| addDebugger () { |
| addJava "-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=$1" |
| } |
| |
| # a ham-fisted attempt to move some memory settings in concert |
| # so they need not be dicked around with individually. |
| get_mem_opts () { |
| local mem=${1:-$sbt_default_mem} |
| local codecache=$(( $mem / 8 )) |
| (( $codecache > 128 )) || codecache=128 |
| (( $codecache < 2048 )) || codecache=2048 |
| |
| echo "-Xms${mem}m -Xmx${mem}m -XX:ReservedCodeCacheSize=${codecache}m" |
| } |
| |
| require_arg () { |
| local type="$1" |
| local opt="$2" |
| local arg="$3" |
| if [[ -z "$arg" ]] || [[ "${arg:0:1}" == "-" ]]; then |
| echo "$opt requires <$type> argument" 1>&2 |
| exit 1 |
| fi |
| } |
| |
| is_function_defined() { |
| declare -f "$1" > /dev/null |
| } |
| |
| process_args () { |
| while [[ $# -gt 0 ]]; do |
| case "$1" in |
| -h|-help) usage; exit 1 ;; |
| -v|-verbose) verbose=1 && shift ;; |
| -d|-debug) debug=1 && shift ;; |
| |
| -ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;; |
| -mem) require_arg integer "$1" "$2" && sbt_mem="$2" && shift 2 ;; |
| -jvm-debug) require_arg port "$1" "$2" && addDebugger $2 && shift 2 ;; |
| -batch) exec </dev/null && shift ;; |
| |
| -sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;; |
| -sbt-version) require_arg version "$1" "$2" && sbt_version="$2" && shift 2 ;; |
| -java-home) require_arg path "$1" "$2" && java_cmd="$2/bin/java" && export JAVA_HOME=$2 && shift 2 ;; |
| |
| -D*) addJava "$1" && shift ;; |
| -J*) addJava "${1:2}" && shift ;; |
| -P*) enableProfile "$1" && shift ;; |
| *) addResidual "$1" && shift ;; |
| esac |
| done |
| |
| is_function_defined process_my_args && { |
| myargs=("${residual_args[@]}") |
| residual_args=() |
| process_my_args "${myargs[@]}" |
| } |
| } |
| |
| run() { |
| # no jar? download it. |
| [[ -f "$sbt_jar" ]] || acquire_sbt_jar "$sbt_version" || { |
| # still no jar? uh-oh. |
| echo "Download failed. Obtain the sbt-launch.jar manually and place it at $sbt_jar" |
| exit 1 |
| } |
| |
| # process the combined args, then reset "$@" to the residuals |
| process_args "$@" |
| set -- "${residual_args[@]}" |
| argumentCount=$# |
| |
| # run sbt |
| execRunner "$java_cmd" \ |
| ${SBT_OPTS:-$default_sbt_opts} \ |
| $(get_mem_opts $sbt_mem) \ |
| ${java_opts} \ |
| ${java_args[@]} \ |
| -jar "$sbt_jar" \ |
| "${sbt_commands[@]}" \ |
| "${residual_args[@]}" |
| } |