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#!/bin/bash
# This script is used for running compiler standalone(outside of sbt)
# it's based on miniboxing script and paulp's launcher script
# Configuration
SCALA_VERSION=2.11.1
SCALA_BINARY_VERSION=2.11
DOTTY_VERSION=0.1
bootcp=true
default_java_opts="-Xmx768m -Xms768m"
programName=$(basename "$0")
# uncomment next line to enable debug output
#debug=true
declare -a java_args scala_args residual_args
unset verbose quiet cygwin toolcp colors saved_stty
CompilerMain=dotty.tools.dotc.Main
# Try to autodetect real location of the script
DOTTY_ROOT="`readlink \"$0\"`" # relative, symbolic links resolved
if [[ "$DOTTY_ROOT" == "" ]]; then
DOTTY_ROOT="$0"
fi
DOTTY_ROOT="`dirname \"$DOTTY_ROOT\"`"
DOTTY_ROOT="`( cd \"$DOTTY_ROOT\" && pwd )`/.." # absolute
# autodetecting the compiler jar. this is location where sbt 'packages' it
MAIN_JAR=$DOTTY_ROOT/target/scala-$SCALA_BINARY_VERSION/dotty_$SCALA_BINARY_VERSION-$DOTTY_VERSION-SNAPSHOT.jar
function checkjar {
if [ ! -f "$1" ]
then
echo "The script is going to build the required jar file $1 by running \"sbt $2\""
cd $DOTTY_ROOT
sbt $2
cd -
if [ ! -f "$1" ]
then
echo "The required jar file has not been built by sbt. Please run \"sbt $2\""
exit 1
else
echo "The required jar file was built successfully."
fi
fi
}
checkjar $MAIN_JAR package
# Autodetecting the scala-library location, in case it wasn't provided by an environment variable
if [ "$SCALA_LIBRARY_JAR" == "" ]
then
SCALA_LIBRARY_JAR=$HOME/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-$SCALA_VERSION.jar
# this is location where sbt stores it in ivy cache
fi
# save as for scala-library now for scala-reflect
if [ "$SCALA_REFLECT_JAR" == "" ]
then
SCALA_REFLECT_JAR=$HOME/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-$SCALA_VERSION.jar
fi
if [ ! -f "$SCALA_LIBRARY_JAR" -o ! -f "$SCALA_REFLECT_JAR" ]
then
echo To use this script please set
echo SCALA_LIBRARY_JAR to point to scala-library-$SCALA_VERSION.jar "(currently $SCALA_LIBRARY_JAR)"
echo SCALA_REFLECT_JAR to point to scala-reflect-$SCALA_VERSION.jar "(currently $SCALA_REFLECT_JAR)"
fi
ifdebug () {
[[ -n $debug ]] && eval "$@"
}
echoErr () {
echo >&2 "$@"
}
dlog () {
[[ -n $debug ]] && echoErr "$@"
}
die() {
echo "Aborting: $@"
exit 1
}
echoArgs () {
echoErr ""
for arg; do
echoErr "$arg"
done
echoErr ""
}
execCommand () {
ifdebug echoArgs "$@"
ignore="$(cat "$HOME/.scala_ignore_crashes" 2>/dev/null)"
if [[ $ignore == "true" ]]; then
"$@" 2>&1 | scala-crash-filter
else
$@
fi
}
# restore stty settings (echo in particular)
restoreSttySettings () {
dlog "" && dlog "[restore stty] $saved_stty"
stty $saved_stty && saved_stty=""
}
onExit () {
[[ -n $saved_stty ]] && restoreSttySettings
exit $scala_exit_status
}
# Get debug set early
for arg in "$@"; do
[[ $arg == "-d" ]] && debug=true
done
# to reenable echo if we are interrupted before completing.
trap onExit INT
# save terminal settings
saved_stty="$(stty -g 2>/dev/null)"
# clear on error so we don't later try to restore them
[[ $? ]] || saved_stty=""
dlog "[save stty] $saved_stty"
if uname | grep -q ^CYGWIN; then
cygwin="$(uname)"
fi
addJava () {
dlog "[addJava] arg = '$1'"
java_args=( "${java_args[@]}" "$1" )
}
addScala () {
dlog "[addScala] arg = '$1'"
scala_args=( "${scala_args[@]}" "$1" )
}
addResidual () {
dlog "[residual] arg = '$1'"
residual_args=( "${residual_args[@]}" "$1" )
}
onExit() {
[[ -n $saved_stty ]] && restoreSttySettings
exit $scala_exit_status
}
# to reenable echo if we are interrupted before completing.
trap onExit INT
# If using the boot classpath, also pass an empty classpath
# to java to suppress "." from materializing.
classpathArgs () {
if [[ -n $bootcp ]]; then
echo "-Xbootclasspath/a:$SCALA_LIBRARY_JAR:$SCALA_REFLECT_JAR:$MAIN_JAR -classpath $MAIN_JAR"
else
echo "-classpath $SCALA_LIBRARY_JAR:$SCALA_REFLECT_JAR:$MAIN_JAR"
fi
}
# e.g. path -java-home /path/to/java_home
require_arg () {
local type="$1"
local opt="$2"
local arg="$3"
if [[ -z "$arg" ]] || [[ "${arg:0:1}" == "-" ]]; then
die "$opt requires <$type> argument"
fi
}
while [[ $# -gt 0 ]]; do
case "$1" in
--) shift; for arg; do addResidual "$arg"; done; set -- ;;
-h|-help) usage; exit 1 ;;
-v|-verbose) verbose=true && shift ;;
-d|-debug) debug=true && shift ;;
-q|-quiet) quiet=true && shift ;;
-repl) main_class=$ReplMain && shift ;;
-compile) main_class=$CompilerMain && shift ;;
-run) main_class=$ReplMain && shift ;;
-fsc) main_class=$FscMain && shift ;;
-bootcp) bootcp=true && shift ;;
-no-bootcp) unset bootcp && shift ;;
-colors) colors=true && shift ;;
-no-colors) unset colors && shift ;;
-jrebel) jrebel=true && shift ;;
-no-jrebel) unset jrebel && shift ;;
-toolcp) require_arg classpath "$1" "$2" && toolcp="$2" && shift 2 ;;
-java-home) require_arg path "$1" "$2" && java_cmd="$2/bin/java" && shift 2 ;;
# break out -D and -J options and add them to JAVA_OPTS as well
# so they reach the JVM in time to do some good. The -D options
# will be available as system properties.
-D*) addJava "$1" && addScala "$1" && shift ;;
-J*) addJava "${1:2}" && addScala "$1" && shift ;;
*) addResidual "$1" && shift ;;
esac
done
[[ -z $java_cmd ]] && prefix=${java_home:+$java_home/bin/} && java_cmd="${prefix}java"
# note that variables which may intentionally be empty must not
# be quoted: otherwise an empty string will appear as a command line
# argument, and java will think that is the program to run.
execCommand \
"$java_cmd" \
${JAVA_OPTS:-$default_java_opts} \
"${java_args[@]}" \
"$(classpathArgs)" \
-Dscala.usejavacp=true \
"${CompilerMain}" \
"${scala_args[@]}" \
"${residual_args[@]}"
# record the exit status lest it be overwritten:
# then reenable echo and propagate the code.
scala_exit_status=$?
onExit
#echo java -cp $MAIN_JAR: -Dscala.usejavacp=true dotty.tools.dotc.Main $@
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