improve profiling script

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-3/trunk@983208 13f79535-47bb-0310-9956-ffa450edef68

apache-maven/src/bin/mvnyjp

@@ -33,10 +33,6 @@
 #       set MAVEN_OPTS=-Xdebug -Xnoagent -Djava.compiler=NONE -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
 # ----------------------------------------------------------------------------
 
-YJPLIB=/applications/YourKit.app/bin/mac/libyjpagent.jnilib
-
-MAVEN_OPTS=-agentpath:$YJPLIB=onexit=snapshot,onexit=memory,tracing,onlylocal
-
 QUOTED_ARGS=""
 while [ "$1" != "" ] ; do
 
@@ -69,6 +65,10 @@ case "`uname`" in
            if [ -z "$JAVA_HOME" ] ; then
              JAVA_HOME=/System/Library/Frameworks/JavaVM.framework/Versions/${JAVA_VERSION}/Home
            fi
+           if [ -z "$YJP_HOME" ]; then
+             YJP_HOME=/Applications/YourKit.app
+           fi
+           YJPLIB=$YJP_HOME/bin/mac/libyjpagent.jnilib
            ;;
 esac
 
@@ -158,6 +158,13 @@ if $cygwin; then
     HOME=`cygpath --path --windows "$HOME"`
 fi
 
+if [ ! -f "$YJPLIB" ]; then
+  echo "Unable to autodetect the YJP library location. Please set YJPLIB variable"
+  exit 1
+fi
+
+MAVEN_OPTS="-agentpath:$YJPLIB=onexit=snapshot,onexit=memory,tracing,onlylocal $MAVEN_OPTS"
+
 exec "$JAVACMD" \
   $MAVEN_OPTS \
   -classpath "${M2_HOME}"/boot/plexus-classworlds-*.jar \