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#!/bin/sh
# vim: set ts=4:
#
# This jruby start script is rewrite of (poor) upstream's jruby.bash.
# It's POSIX compatible, more clean, with sensible defaults for Alpine Linux
# and without Windows and OS X stuff. Beside that it should support
# all the options of jruby.bash (hopefully) with the same behaviour.
#
# -----BEGIN HELP-----
#
# Environment variables:
# CLASSPATH Additional paths to be added to the end of the Java classpath.
# This may be overwritten by CLI argument -J-classpath or -J-cp.
# JAVA_HOME Path to directory where is JRE/JVM installed to use specific java/jdb binary,
# not the one on the PATH.
# JAVA_OPTS Default options to be passed to JVM.
# JRUBY_HOME Path to directory where JRuby is installed (default is /usr/share/java/jruby).
# JRUBY_OPTS Default JRuby command line arguments.
# JRUBY_SHELL Path to the system shell executable (default is /bin/sh).
# PROFILE_ARGS Arguments for the instrumented profiler.
#
# Deprecated environment variables (for compatibility):
# JAVA_MEM The -Xmx (maximum memory allocation) parameter for JVM (e.g. -Xmx128M).
# This may be overwritten by CLI argument -J-Xmx.
# JAVA_STACK The -Xss (stack size) parameter for JVM (default is -Xss2048k).
# This may be overwritten by CLI argument -J-Xss.
# JAVA_VM What JIT mode to use; -client, or -server (default is -server).
# This may be overwritten by CLI arguments --server, --client, and --dev.
# JRUBY_PARENT_CLASSPATH Classpath propagated from the parent JRuby process.
#
# All the environment variables are optional.
# -----END HELP-----
#
set -eu
readonly MAIN_CLASS_JRUBY='org.jruby.Main'
readonly MAIN_CLASS_NGCLIENT='org.jruby.util.NailMain'
readonly MAIN_CLASS_NGSERVER='org.jruby.main.NailServerMain'
readonly JRUBY_HOME="${JRUBY_HOME:-"/usr/share/jruby"}"
readonly JRUBY_CP="$JRUBY_HOME/lib/jruby.jar"
readonly JRUBY_SHELL="${JRUBY_SHELL:-"/bin/sh"}"
readonly NAILGUN_CMD="$JRUBY_HOME/tool/nailgun/ng"
readonly PROFILE_ARGS="${PROFILE_ARGS:-}"
quote() {
local val; for val in "$@"; do
printf %s "$val" | sed "s/'/'\\\\''/g; 1s/^/'/; \$s/\$/' /"
done
}
java_stack="${JAVA_STACK:-"-Xss2048k"}"
java_cmd="${JAVA_HOME:+"$JAVA_HOME/bin/"}java"
java_opts="${JAVA_OPTS:-} ${JAVA_MEM:-} $java_stack
-Dorg.xerial.snappy.use.systemlib=true"
# Use the same classpath propagated from parent jruby, if provided.
classpath="${JRUBY_PARENT_CLASSPATH:-}"
if [ -z "$classpath" ]; then
_excluded='jruby.jar jruby-truffle.jar jruby-complete.jar'
# Add all JARs from $JRUBY_HOME/lib to the classpath, except $_excluded.
classpath=$(find "$JRUBY_HOME/lib" -maxdepth 1 \
-name '*.jar' $(printf '! -name %s ' $_excluded) -print0 \
| xargs -0 printf '%s:')
classpath="${classpath%?}" # %? removes leading ":"
fi
java_security_egd=''
if [ -r /dev/urandom ]; then
# Non-file URL causes fallback to slow threaded SeedGenerator.
# See https://bz.apache.org/bugzilla/show_bug.cgi?id=56139
java_security_egd='file:/dev/urandom'
fi
extra_cp="${CLASSPATH:-}"
java_vm="${JAVA_VM:-"-server"}"
main_class="$MAIN_CLASS_JRUBY"
nailgun_client='no'
ruby_args=''
verify_jruby='no'
# Split out any -J argument for passing to the JVM.
# Scanning for args is aborted by '--'.
set -- ${JRUBY_OPTS:-} "$@"
while [ $# -gt 0 ]; do
case "$1" in
# Stuff after "-J" goes to JVM.
-J | -J-X)
"$java_cmd" -help
printf '\n%s\n' '(Prepend -J in front of these options when using "jruby" command)'
exit 1
;;
-J-classpath | -J-cp)
extra_cp="$2"
shift
;;
-J-ea)
verify_jruby='yes'
java_opts="$java_opts ${1#-J}"
;;
-J-Djava.security.egd=)
java_security_egd="${1#-J-Djava.security.egd=}"
;;
-J*)
java_opts="$java_opts ${1#-J}"
;;
# Pass -X... and -X? search options through.
-X*\.\.\.|-X*\?)
ruby_args="$ruby_args $1"
;;
# Match -Xa.b.c=d to translate to -Da.b.c=d as a Java option.
-X*)
val="${1#-X}"
if expr "$val" : '.*[.]' > /dev/null; then
java_opts="$java_opts -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 $(quote "$2")"
shift
;;
# Match same switches with argument stuck together.
-e* | -I* | -S*)
ruby_args="$ruby_args $(quote "$1")"
;;
# Run with JMX management enabled.
--manage)
java_opts="$java_opts -Dcom.sun.management.jmxremote \
-Djruby.management.enabled=true"
;;
# Don't launch a GUI window, no matter what.
--headless)
java_opts="$java_opts -Djava.awt.headless=true"
;;
# Run under JDB (debug mode).
--jdb)
java_cmd="${JAVA_HOME:+"$JAVA_HOME/bin/"}jdb"
java_opts="$java_opts -sourcepath $JRUBY_HOME/lib/ruby/1.9:."
ruby_args="$ruby_args -X+C"
;;
--client | --server)
java_vm="${1#?}" # #? removes leading "-"
;;
--dev)
java_vm='-client'
java_opts="$java_opts -XX:+TieredCompilation -XX:TieredStopAtLevel=1 \
-Djruby.compile.mode=OFF -Djruby.compile.invokedynamic=false"
;;
--sample)
java_opts="$java_opts -Xprof"
;;
# Start up as Nailgun server.
--ng-server)
main_class="$MAIN_CLASS_NGSERVER"
verify_jruby='yes'
;;
# Use native Nailgun client to toss commands to server.
--ng-client | --ng)
nailgun_client='yes'
;;
# Warn but ignore.
--1.8 | --1.9 | --2.0)
echo "WARNING: $1 is ignored"
;;
-h | -help | --help)
"$java_cmd" -help
# Print help from the top of this script.
sed -En '/-{5}BEGIN HELP-{5}/,/-{5}END HELP-{5}/p' "$0" \
| sed -E "s/^# ?//; 1d;\$d;"
exit 0
;;
# Abort processing on the double dash.
--)
break
;;
# Other opts go to ruby.
-*)
ruby_args="$ruby_args $(quote "$1")"
;;
# Abort processing on first non-opt arg.
*)
break
;;
esac
shift
done
# Remove possible duplications of some common JVM options.
for opt in -Xmx -Xms -Xss; do
val=$(expr "$java_opts" : ".*$opt\([^ \t]*\).*" ||:) # gets the later one
if [ -n "$val" ]; then
# Remove all occurrences of $opt and append the last one to the end.
java_opts=$(printf "%s\n" "$java_opts" | sed "s/$opt[^ \t]*//g")
java_opts="$java_opts ${opt}${val}"
fi
done
classpath="$classpath${extra_cp:+":$extra_cp"}"
java_opts="$java_opts $java_vm
${java_security_egd:+"-Djava.security.egd=$java_security_egd"}
-Djruby.home=$JRUBY_HOME
-Djruby.lib=$JRUBY_HOME/lib
-Djruby.script=jruby
-Djruby.shell=$JRUBY_SHELL"
# Append the rest of the arguments.
ruby_args="$ruby_args $(quote "$@")"
# Put $ruby_args back into the position arguments $1, $2, ...
# We must use eval to unquote arguments that we have quoted in order to
# preserve whitespaces.
eval "set -- $ruby_args"
if [ "$nailgun_client" = 'yes' ]; then
if [ ! -f "$NAILGUN_CMD" ]; then
echo 'ERROR: ng executable not found' 1>&2
exit 1
fi
exec "$NAILGUN_CMD" $MAIN_CLASS_NGCLIENT "$@"
elif [ "$verify_jruby" = 'yes' ]; then
[ -n "$PROFILE_ARGS" ] && echo 'Running with instrumented profiler'
set +e
"$java_cmd" $PROFILE_ARGS $java_opts \
-classpath "$JRUBY_CP:$classpath" $main_class "$@"
exit_code=$?
set -e
if [ -n "$PROFILE_ARGS" ]; then
echo 'Profiling results:'
cat profile.txt
rm profile.txt
fi
exit $exit_code
else
exec "$java_cmd" $java_opts -Xbootclasspath/a:"$JRUBY_CP" \
${classpath:+"-classpath $classpath"} \
$main_class "$@"
fi
|
