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#! /bin/sh
# -----------------------------------------------------------------------------
# jruby.sh - Start Script for the JRuby interpreter
#
# Environment Variable Prequisites
#
# JRUBY_OPTS (Optional) Default JRuby command line args
# JRUBY_SHELL Where/What is system shell
#
# JAVA_HOME Must point at your Java Development Kit installation.
#
# -----------------------------------------------------------------------------
# ********************************** NOTE *************************************
# This script is provided as a convenience for users on systems that do not
# have the "bash" shell available. It does not support all the flags the bash
# and native executables do, but should be complete enough for most users.
# Improvements are welcome.
# *****************************************************************************
# ----- Verify and Set Required Environment Variables -------------------------
## resolve links - $0 may be a link to home
PRG=$0
progname=`basename "$0"`
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '.*/.*' > /dev/null; then
if expr "$link" : '/' > /dev/null; then
PRG="$link"
else
PRG="`dirname ${PRG}`/${link}"
fi
else
PRG="`dirname $PRG`/$link"
fi
done
JRUBY_HOME_1=`dirname "$PRG"` # the ./bin dir
if [ "$JRUBY_HOME_1" = '.' ] ; then
cwd=`pwd`
JRUBY_HOME=`dirname $cwd` # JRUBY-2699
else
JRUBY_HOME=`dirname "$JRUBY_HOME_1"` # the . dir
fi
if [ -z "$JRUBY_OPTS" ] ; then
JRUBY_OPTS=""
fi
JRUBY_OPTS_SPECIAL="--ng" # space-separated list of special flags
unset JRUBY_OPTS_TEMP
process_special_opts() {
case $1 in
--ng) nailgun_client=true;;
*) break;;
esac
}
for opt in ${JRUBY_OPTS[@]}; do
for special in ${JRUBY_OPTS_SPECIAL[@]}; do
if [ $opt != $special ]; then
JRUBY_OPTS_TEMP="${JRUBY_OPTS_TEMP} $opt"
else
# make sure flags listed in JRUBY_OPTS_SPECIAL are processed
case "$opt" in
--ng)
process_special_opts $opt;;
esac
fi
done
done
JRUBY_OPTS=${JRUBY_OPTS_TEMP}
if [ -z "$JAVACMD" ] ; then
if [ -z "$JAVA_HOME" ] ; then
JAVACMD='java'
else
JAVACMD="$JAVA_HOME/bin/java"
fi
fi
# If you're seeing odd exceptions, you may have a bad JVM install.
# Uncomment this and report the version to the JRuby team along with error.
#$JAVACMD -version
JRUBY_SHELL=/bin/sh
# ----- Set Up The Boot Classpath -------------------------------------------
CP_DELIMITER=":"
# add main jruby jar to the bootclasspath
for j in "$JRUBY_HOME"/lib/jruby.jar "$JRUBY_HOME"/lib/jruby-complete.jar; do
if [ ! -e "$j" ]; then
continue
fi
if [ "$JRUBY_CP" ]; then
JRUBY_CP="$JRUBY_CP$CP_DELIMITER$j"
else
JRUBY_CP="$j"
fi
if [ $JRUBY_ALREADY_ADDED ]; then
echo "WARNING: more than one JRuby JAR found in lib directory"
fi
JRUBY_ALREADY_ADDED=true
done
# ----- Set Up The System Classpath -------------------------------------------
if [ "$JRUBY_PARENT_CLASSPATH" != "" ]; then
# Use same classpath propagated from parent jruby
CP=$JRUBY_PARENT_CLASSPATH
else
# add other jars in lib to CP for command-line execution
for j in "$JRUBY_HOME"/lib/*.jar; do
if [ "$j" == "$JRUBY_HOME"/lib/jruby.jar ]; then
continue
fi
if [ "$j" == "$JRUBY_HOME"/lib/jruby-complete.jar ]; then
continue
fi
if [ "$CP" ]; then
CP="$CP$CP_DELIMITER$j"
else
CP="$j"
fi
done
fi
# ----- Execute The Requested Command -----------------------------------------
if [ -z "$JAVA_MEM" ] ; then
JAVA_MEM=-Xmx500m
fi
if [ -z "$JAVA_STACK" ] ; then
JAVA_STACK=-Xss2048k
fi
if [ -z "$JAVA_VM" ]; then
JAVA_VM=-client
fi
JAVA_ENCODING=""
#declare -a java_args
#declare -a ruby_args
java_class=org.jruby.Main
# Split out any -J argument for passing to the JVM.
# Scanning for args is aborted by '--'.
while [ $# -gt 0 ]
do
case "$1" in
# Stuff after '-J' in this argument goes to JVM
-J*)
val=${1:2}
if [ "${val:0:4}" = "-Xmx" ]; then
JAVA_MEM=$val
elif [ "${val:0:4}" = "-Xss" ]; then
JAVA_STACK=$val
elif [ "${val}" = "" ]; then
$JAVACMD -help
echo "(Prepend -J in front of these options when using 'jruby' command)"
exit
elif [ "${val}" = "-X" ]; then
$JAVACMD -X
echo "(Prepend -J in front of these options when using 'jruby' command)"
exit
elif [ "${val}" = "-classpath" ]; then
CP="$CP$CP_DELIMITER$2"
CLASSPATH=""
shift
elif [ "${val}" = "-cp" ]; then
CP="$CP$CP_DELIMITER$2"
CLASSPATH=""
shift
else
if [ "${val:0:3}" = "-ea" ]; then
VERIFY_JRUBY="yes"
elif [ "${val:0:16}" = "-Dfile.encoding=" ]; then
JAVA_ENCODING=$val
fi
java_args="${java_args} ${1:2}"
fi
;;
# Match -Xa.b.c=d to translate to -Da.b.c=d as a java option
-X*)
val=${1:2}
if expr "$val" : '.*[.]' > /dev/null; then
java_args="${java_args} -Djruby.${val}"
else
ruby_args="${ruby_args} -X${val}"
fi
;;
# Match switches that take an argument
-C|-e|-I|-S) ruby_args="${ruby_args} $1 $2"; shift ;;
# Match same switches with argument stuck together
-e*|-I*|-S*) ruby_args="${ruby_args} $1" ;;
# Run with JMX management enabled
--manage)
java_args="${java_args} -Dcom.sun.management.jmxremote"
java_args="${java_args} -Djruby.management.enabled=true" ;;
# Don't launch a GUI window, no matter what
--headless)
java_args="${java_args} -Djava.awt.headless=true" ;;
# Run under JDB
--jdb)
if [ -z "$JAVA_HOME" ] ; then
JAVACMD='jdb'
else
JAVACMD="$JAVA_HOME/bin/jdb"
fi
java_args="${java_args} -sourcepath $JRUBY_HOME/lib/ruby/1.8:."
JRUBY_OPTS="${JRUBY_OPTS} -X+C" ;;
--client)
JAVA_VM=-client ;;
--server)
JAVA_VM=-server ;;
--noclient) # JRUBY-4296
unset JAVA_VM ;; # For IBM JVM, neither '-client' nor '-server' is applicable
--sample)
java_args="${java_args} -Xprof" ;;
--ng-server)
# Start up as Nailgun server
java_class=com.martiansoftware.nailgun.NGServer
VERIFY_JRUBY=true ;;
--ng)
# Use native Nailgun client to toss commands to server
process_special_opts "--ng" ;;
# Abort processing on the double dash
--) break ;;
# Other opts go to ruby
-*) ruby_args="${ruby_args} $1" ;;
# Abort processing on first non-opt arg
*) break ;;
esac
shift
done
# Force file.encoding to UTF-8 when on Mac, since Apple JDK defaults to MacRoman (JRUBY-3576)
if [[ -z "$JAVA_ENCODING" ]]; then
java_args="${java_args} -Dfile.encoding=UTF-8"
fi
# Append the rest of the arguments
ruby_args="${ruby_args} $@"
# Put the ruby_args back into the position arguments $1, $2 etc
set -- "${ruby_args}"
JAVA_OPTS="$JAVA_OPTS $JAVA_VM $JAVA_MEM $JAVA_STACK"
JFFI_BOOT=""
if [ -d "$JRUBY_HOME/lib/native/" ]; then
for d in $JRUBY_HOME/lib/native/*`uname -s`; do
if [ -z "$JFFI_BOOT" ]; then
JFFI_BOOT="$d"
else
JFFI_BOOT="$JFFI_BOOT:$d"
fi
done
fi
JFFI_OPTS="-Djffi.boot.library.path=$JFFI_BOOT"
if [ "$nailgun_client" != "" ]; then
if [ -f $JRUBY_HOME/tool/nailgun/ng ]; then
exec $JRUBY_HOME/tool/nailgun/ng org.jruby.util.NailMain $JRUBY_OPTS "$@"
else
echo "error: ng executable not found; run 'make' in ${JRUBY_HOME}/tool/nailgun"
exit 1
fi
else
if [ "$VERIFY_JRUBY" != "" ]; then
if [ "$PROFILE_ARGS" != "" ]; then
echo "Running with instrumented profiler"
fi
"$JAVACMD" $PROFILE_ARGS $JAVA_OPTS "$JFFI_OPTS" "${java_args[@]}" -classpath "$JRUBY_CP$CP_DELIMITER$CP$CP_DELIMITER$CLASSPATH" \
"-Djruby.home=$JRUBY_HOME" \
"-Djruby.lib=$JRUBY_HOME/lib" -Djruby.script=jruby \
"-Djruby.shell=$JRUBY_SHELL" \
$java_class $JRUBY_OPTS "$@"
# Record the exit status immediately, or it will be overridden.
JRUBY_STATUS=$?
if [ "$PROFILE_ARGS" != "" ]; then
echo "Profiling results:"
cat profile.txt
rm profile.txt
fi
exit $JRUBY_STATUS
else
exec $JAVACMD $JAVA_OPTS $JFFI_OPTS ${java_args} -Xbootclasspath/a:$JRUBY_CP -classpath $CP$CP_DELIMITER$CLASSPATH \
-Djruby.home=$JRUBY_HOME \
-Djruby.lib=$JRUBY_HOME/lib -Djruby.script=jruby \
-Djruby.shell=$JRUBY_SHELL \
$java_class $JRUBY_OPTS $@
fi
fi
# Be careful adding code down here, you might override the exit
# status of the jruby invocation.
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