Print console message on illegal --datadir

[GunChleoc]

While starting Widelands from console under Windows while specifying a nonexistent --datadir, Widelands was terminated before showing any GUI and no message shown.

There should be a log message.

I am assuming that the same will happen under other OSses.

[Hans Joachim Desserud (hjd)]

Thanks for reporting.

I get the following error message on Ubuntu when running Widelands r8400:
Realpath: (null)
widelands: /[path-to-repo]/widelands/src/wlapplication.cc:163: std::__cxx11::string {anonymous}::absolute_path_if_not_windows(const string&): Assertion `rp' failed.

(I seem to remember I filed a similar bug report on some cli options which didn't deal with non-existing directories, couldn't find it at the moment, but there might be similar bugs lurking for other options.)

[Hans Joachim Desserud (hjd)]

Did some more digging. I might have been thinking about either bug 1355397 or bug 1150455. Note that the latter talks about the --editor option handling it at the time. To be fair, a warning is still logged, but it also crash with a segfault now, so not sure if that is intended behaviour...

[GunChleoc (gunchleoc)]

Fixed in build20-rc1