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#!/usr/bin/env bash
# This script is used for running compiler standalone(outside of sbt)
# it's based on miniboxing script and paulp's launcher script
# 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" >& /dev/null && pwd )/.." # absolute
source $DOTTY_ROOT/bin/common
# dotc.build test places bootstrapped jar here
DOTTY_JAR=$DOTTY_ROOT/dotty.jar
CompilerMain=dotty.tools.dotc.Main
FromTasty=dotty.tools.dotc.FromTasty
ReplMain=dotty.tools.dotc.repl.Main
if [ ! -f "$SCALA_LIBRARY_JAR" -o ! -f "$SCALA_REFLECT_JAR" -o ! -f "$SCALA_COMPILER_JAR" -o ! -f "$SBT_INTERFACE_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 $SCALA_REFLECT_JAR)"
echo SCALA_COMPILER_JAR to point to scala-compiler-$SCALA_VERSION.jar with bcode patches "(currently $SCALA_COMPILER_JAR)"
echo SBT_INTERFACE_JAR to point to interface-$SBT_VERSION.jar "(currently $SBT_INTERFACE_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
[[ $arg == "-debug" ]] && debug=true
done
# to reenable echo if we are interrupted before completing.
trap onExit INT
# save terminal settings
saved_stty="$(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+=("$1")
}
addScala () {
dlog "[addScala] arg = '$1'"
scala_args+=("$1")
}
addResidual () {
dlog "[residual] arg = '$1'"
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 [[ "true" == $bootstrapped ]]; then
check_jar "dotty-bootstrapped" $DOTTY_JAR "target" 'build_jar "test:runMain dotc.build" target' &> /dev/null
toolchain="$DOTTY_JAR:$DOTTY_LIB_JAR:$SCALA_LIBRARY_JAR:$SCALA_REFLECT_JAR:$SCALA_COMPILER_JAR:$SBT_INTERFACE_JAR"
else
toolchain="$SCALA_LIBRARY_JAR:$DOTTY_LIB_JAR:$SCALA_REFLECT_JAR:$SCALA_COMPILER_JAR:$SBT_INTERFACE_JAR"
fi
bcpJars="$INTERFACES_JAR:$MAIN_JAR:$DOTTY_LIB_JAR"
cpJars="$INTERFACES_JAR:$MAIN_JAR:$DOTTY_LIB_JAR:$TEST_JAR"
if [[ -n "$cygwin" ]]; then
if [[ "$OS" = "Windows_NT" ]] && cygpath -m .>/dev/null 2>/dev/null ; then
format=mixed
else
format=windows
fi
if [[ -n $bootcp ]]; then
boot_classpath="$(cygpath --path --$format "$toolchain:$bcpJars")"
classpath="$(cygpath --path --$format "$cpJars")"
cpArgs="-Xbootclasspath/a:$boot_classpath -classpath $classpath"
else
classpath="$(cygpath --path --$format "$toolchain:$cpJars")"
cpArgs="-classpath $classpath"
fi
else
if [[ -n $bootcp ]]; then
cpArgs="-Xbootclasspath/a:$toolchain:$bcpJars -classpath $cpJars"
else
cpArgs="-classpath $toolchain:$cpJars"
fi
fi
echo ${cpArgs}
}
# 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 <$type> argument"
fi
}
main_class=$CompilerMain
while [[ $# -gt 0 ]]; do
case "$1" in
--) shift; for arg; do addResidual "$arg"; done; set -- ;;
-h|-help) help=true && shift ;;
-bootstrapped) bootstrapped=true && shift ;;
-v|-verbose) verbose=true && shift ;;
-debug) debug=true && shift ;;
-q|-quiet) quiet=true && shift ;;
# Optimize for short-running applications, see https://github.com/lampepfl/dotty/issues/222
-Oshort) addJava "-XX:+TieredCompilation -XX:TieredStopAtLevel=1" && shift ;;
-repl) main_class=$ReplMain && shift ;;
-tasty) main_class=$FromTasty && shift ;;
-compile) main_class=$CompilerMain && shift ;;
-run) main_class=$ReplMain && shift ;;
-fsc) main_class=$FscMain && shift ;;
-bootcp) bootcp=true && shift ;;
-nobootcp) 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 \
"${main_class}" \
"${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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