set PATH=C:thepathtosvnexecutable;%PATH%
REM my repo requires authentication, so I added this vars
set OPENGROK_SUBVERSION_USERNAME=user
set OPENGROK_SUBVERSION_PASSWORD=pwd
java -jar libopengrok.jar -W .configuration.xml -c C:pathofctags.exe -P -S -v -r on -s C:pathofsrc -d .grokdata

...done scanning for repositories (0s) --> it seems too fast

set PATH=C:thepathtosvnexecutable;%PATH%
set OPENGROK_SUBVERSION_USERNAME=user
set OPENGROK_SUBVERSION_PASSWORD=pwd
%CATALINA_HOME%binstartup.bat

-H
    Generate history cache for all repositories

java -jar libopengrok.jar