fix a configuration bug on index.sh

Author: wy193777

dockerfile

@@ -5,7 +5,7 @@ WORKDIR /opengrok-source
 
 RUN apt-get update && apt-get install -y python3 python3-venv
 RUN mvn -f pom.xml clean package -DskipTests=true
-
+# find most recent package file
 RUN cp `ls -t distribution/target/*.tar.gz | head -n1 |awk '{printf("%s",$0)}'` /opengrok.tar.gz
 
 FROM tomcat:9-jre8

scripts/index.sh

@@ -2,6 +2,7 @@
 
 LOCKFILE=/var/run/opengrok-indexer
 URI="http://localhost:8080"
+# $OPTS an be overwriteb by environment variable
 OPS=${INDEXER_FLAGS:='-H -P -S -G'}
 
 if [ -f "$LOCKFILE" ]; then
@@ -25,7 +26,7 @@ opengrok-indexer \
     --leadingWildCards on \
     -W /var/opengrok/etc/configuration.xml \
     -U "$URI" \
-    $INDEXER_FLAGS \
+    $OPS \
     $INDEXER_OPT "$@"
 date +"%F %T Indexing finished"