using lualatex.exe does not allow os.execute to work. I have loaded the exact same code from a working ide environment and all the code related to the os.execute fails in texlipse. It is as if lualatex is not allowed to spawn any processes. It completely breaks my project. Please fix.
I do not have much LuaTeX experience myself, but various forum posts suggest that you might have to use the "-shell-escape" switch of lualatex.exe. It is not included by default in TeXlipse, so you could try adding that to the command line.
OK, I suppose it's not TeXlipse fault but the order. Since I just copied and pasted my command line from the other idea there are problems:
seems to needs to be last. Anything after it seems to get added to %input.