[luatex] getting --output-directory

Reinhard Kotucha reinhard.kotucha at web.de
Mon May 6 09:19:22 CEST 2013

On 2013-04-30 at 18:45:36 +0200, Stephan Hennig wrote:

 > Am 29.04.2013 19:12, schrieb Stephan Hennig:
 > > Shouldn't io.read and io.write operate in the output directory
 > > instead of the current directory in the first place?
 > Or rather io.open and io.popen.
 > > Does this reasoning make any sense?

I don't think so.  There might be reasons to set --output-directory in
order to put the PDF file somewhere else than other files.

If you want to read/write other files from/to the directory specified
by --output-directory, it's easy enough to determine the argument of
--output-directory in Lua.

  for k,v in pairs(arg) do
    if v:find('%-output%-directory') then
      if v:find('%-output%-directory=') then
        outputdir=string.explode(v, '=')[2]
  if outputdir and lfs.isdir(outputdir) then 

But if you create a file, process it by an external tool, and read the
resulting file, it would be quite annoying if read and write
operations take place in different directories.  Thus I think that the
current behavior is appropriate and less confusing.

And even if Taco agrees more with you than with me, it would be very
helpful at least to have a boolean variable 'luaoutputdirectory' which
allows to control the behavior. 


Reinhard Kotucha                                      Phone: +49-511-3373112
Marschnerstr. 25
D-30167 Hannover                              mailto:reinhard.kotucha at web.de
Microsoft isn't the answer. Microsoft is the question, and the answer is NO.

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