Handle symlinks correctly for OpenGrok shell script

[zjj]

line 99 of OpenGrok shell script opengrokbin=$(readlink -f ${0}) SCRIPT_DIRECTORY="dirname ${opengrokbin}" SCRIPT_DIRECTORY="cd ${SCRIPT_DIRECTORY}; pwd"

A small apporch to that

[tarzanek]

not sure if readlink is portable if you find a better patch I'll gladly accept, otherwise I will figure this out

• basically OpenGrok is a symlink to OpenGrok script and the binary is a symlink as well?

[zjj]

@tarzanek

man readlink (on linux..., not test on other platform, but you can find this out on Solaris if there is something simliar)

   -f, --canonicalize
          canonicalize  by  following  every symlink in every component of
          the given name recursively; all  but  the  last  component  must
          exist

pi@raspberrypi /tmp/test $ tree . ├── a -> b └── b -> ../bin/OpenGrok

0 directories, 2 files pi@raspberrypi /tmp/test $ readlink -f a /tmp/bin/OpenGrok pi@raspberrypi /tmp $ readlink -f /tmp/bin/OpenGrok /tmp/bin/OpenGrok

[tulinkry]

We no longer use OpenGrok shell script.