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September 12, 2012 12:16
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java-shell-script-wrapper from http://saltnlight5.blogspot.ie/2012/08/a-better-java-shell-script-wrapper.html
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| #!/usr/bin/env bash | |
| # | |
| # Copyright 2012 Zemian Deng | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| # A wrapper script that run any Java6 application in unix/cygwin env. | |
| # | |
| # This script is assumed to be located in an application's "bin" directory. It will | |
| # auto resolve any symbolic link and always run in relative to this application | |
| # directory (which is one parent up from the script.) Therefore, this script can be | |
| # run any where in the file system and it will still reference this application | |
| # directory. | |
| # | |
| # This script will by default auto setup a Java classpath that picks up any "config" | |
| # and "lib" directories under the application directory. It also will also add a | |
| # any typical Maven project output directories such as "target/test-classes", | |
| # "target/classes", and "target/dependency" into classpath. This can be disable by | |
| # setting RUN_JAVA_NO_PARSE=1. | |
| # | |
| # If the "Default parameters" section bellow doesn't match to user's env, then user | |
| # may override these variables in their terminal session or preset them in shell's | |
| # profile startup script. The values of all path should be in cygwin/unix path, | |
| # and this script will auto convert them into Windows path where is needed. | |
| # | |
| # User may customize the Java classpath by setting RUN_JAVA_CP, which will prefix to existing | |
| # classpath, or use the "-cp" option, which will postfix to existing classpath. | |
| # | |
| # Usage: | |
| # run-java [java_opts] <java_main_class> [-cp /more/classpath] [-Dsysprop=value] | |
| # | |
| # Example: | |
| # run-java example.Hello | |
| # run-java example.Hello -Dname=World | |
| # run-java org.junit.runner.JUnitCore example.HelloTest -cp "C:\apps\lib\junit4.8.2\*" | |
| # | |
| # Created by: Zemian Deng 03/09/2012 | |
| # This run script dir (resolve to absolute path) | |
| SCRIPT_DIR=$(cd $(dirname $0) && pwd) # This dir is where this script live. | |
| APP_DIR=$(cd $SCRIPT_DIR/.. && pwd) # Assume the application dir is one level up from script dir. | |
| # Default parameters | |
| JAVA_HOME=${JAVA_HOME:=/apps/jdk} # This is the home directory of Java development kit. | |
| RUN_JAVA_CP=${RUN_JAVA_CP:=$CLASSPATH} # A classpath prefix before -classpath option, default to $CLASSPATH | |
| RUN_JAVA_OPTS=${RUN_JAVA_OPTS:=} # Java options (-Xmx512m -XX:MaxPermSize=128m etc) | |
| RUN_JAVA_DEBUG=${RUN_JAVA_DEBUG:=} # If not empty, print the full java command line before executing it. | |
| RUN_JAVA_NO_PARSE=${RUN_JAVA_NO_PARSE:=} # If not empty, skip the auto parsing of -D and -cp options from script arguments. | |
| RUN_JAVA_NO_AUTOCP=${RUN_JAVA_NO_AUTOCP:=} # If not empty, do not auto setup Java classpath | |
| RUN_JAVA_DRY=${RUN_JAVA_DRY:=} # If not empty, do not exec Java command, but just print | |
| # OS specific support. $var _must_ be set to either true or false. | |
| CYGWIN=false; | |
| case "`uname`" in | |
| CYGWIN*) CYGWIN=true ;; | |
| esac | |
| # Define where is the java executable is | |
| JAVA_CMD=java | |
| if [ -d "$JAVA_HOME" ]; then | |
| JAVA_CMD="$JAVA_HOME/bin/java" | |
| fi | |
| # Auto setup applciation's Java Classpath (only if they exists) | |
| if [ -z "$RUN_JAVA_NO_AUTOCP" ]; then | |
| if $CYGWIN; then | |
| # Provide Windows directory conversion | |
| JAVA_HOME_WIN=$(cygpath -aw "$JAVA_HOME") | |
| APP_DIR_WIN=$(cygpath -aw "$APP_DIR") | |
| if [ -d "$APP_DIR_WIN\config" ]; then RUN_JAVA_CP="$RUN_JAVA_CP;$APP_DIR_WIN\config" ; fi | |
| if [ -d "$APP_DIR_WIN\target\test-classes" ]; then RUN_JAVA_CP="$RUN_JAVA_CP;$APP_DIR_WIN\target\test-classes" ; fi | |
| if [ -d "$APP_DIR_WIN\target\classes" ]; then RUN_JAVA_CP="$RUN_JAVA_CP;$APP_DIR_WIN\target\classes" ; fi | |
| if [ -d "$APP_DIR_WIN\target\dependency" ]; then RUN_JAVA_CP="$RUN_JAVA_CP;$APP_DIR_WIN\target\dependency\*" ; fi | |
| if [ -d "$APP_DIR_WIN\lib" ]; then RUN_JAVA_CP="$RUN_JAVA_CP;$APP_DIR_WIN\lib\*" ; fi | |
| else | |
| if [ -d "$APP_DIR/config" ]; then RUN_JAVA_CP="$RUN_JAVA_CP:$APP_DIR/config" ; fi | |
| if [ -d "$APP_DIR/target/test-classes" ]; then RUN_JAVA_CP="$RUN_JAVA_CP:$APP_DIR/target/test-classes" ; fi | |
| if [ -d "$APP_DIR/target/classes" ]; then RUN_JAVA_CP="$RUN_JAVA_CP:$APP_DIR/target/classes" ; fi | |
| if [ -d "$APP_DIR/target/dependency" ]; then RUN_JAVA_CP="$RUN_JAVA_CP:$APP_DIR/target/dependency/*" ; fi | |
| if [ -d "$APP_DIR/lib" ]; then RUN_JAVA_CP="$RUN_JAVA_CP:$APP_DIR/lib/*" ; fi | |
| fi | |
| fi | |
| # Parse addition "-cp" and "-D" after the Java main class from script arguments | |
| # This is done for convenient sake so users do not have to export RUN_JAVA_CP and RUN_JAVA_OPTS | |
| # saparately, but now they can pass into end of this run-java script instead. | |
| # This can be disable by setting RUN_JAVA_NO_PARSE=1. | |
| if [ -z "$RUN_JAVA_NO_PARSE" ]; then | |
| # Prepare variables for parsing | |
| FOUND_CP= | |
| declare -a NEW_ARGS | |
| IDX=0 | |
| # Parse all arguments and look for "-cp" and "-D" | |
| for ARG in "$@"; do | |
| if [[ -n $FOUND_CP ]]; then | |
| if [ "$OS" = "Windows_NT" ]; then | |
| # Can't use cygpath here, because cygpath will auto expand "*", which we do not | |
| # want. User will just have to use OS path when specifying "-cp" option. | |
| #ARG=$(cygpath -w -a $ARG) | |
| RUN_JAVA_CP="$RUN_JAVA_CP;$ARG" | |
| else | |
| RUN_JAVA_CP="$RUN_JAVA_CP:$ARG" | |
| fi | |
| FOUND_CP= | |
| else | |
| case $ARG in | |
| '-cp') | |
| FOUND_CP=1 | |
| ;; | |
| '-D'*) | |
| RUN_JAVA_OPTS="$RUN_JAVA_OPTS $ARG" | |
| ;; | |
| *) | |
| NEW_ARGS[$IDX]="$ARG" | |
| let IDX=$IDX+1 | |
| ;; | |
| esac | |
| fi | |
| done | |
| # Display full Java command. | |
| if [ -n "$RUN_JAVA_DEBUG" ] || [ -n "$RUN_JAVA_DRY" ]; then | |
| echo "$JAVA_CMD" $RUN_JAVA_OPTS -cp "$RUN_JAVA_CP" "${NEW_ARGS[@]}" | |
| fi | |
| # Run Java Main class using parsed variables | |
| if [ -z "$RUN_JAVA_DRY" ]; then | |
| "$JAVA_CMD" $RUN_JAVA_OPTS -cp "$RUN_JAVA_CP" "${NEW_ARGS[@]}" | |
| fi | |
| else | |
| # Display full Java command. | |
| if [ -n "$RUN_JAVA_DEBUG" ] || [ -n "$RUN_JAVA_DRY" ]; then | |
| echo "$JAVA_CMD" $RUN_JAVA_OPTS -cp "$RUN_JAVA_CP" "$@" | |
| fi | |
| # Run Java Main class | |
| if [ -z "$RUN_JAVA_DRY" ]; then | |
| "$JAVA_CMD" $RUN_JAVA_OPTS -cp "$RUN_JAVA_CP" "$@" | |
| fi | |
| fi |
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