Re: Preview with TeX-output-dir and luatex

[Braun, Michael]

Ikumi:

Thanks for the quick turnaround on a patch.  It works as long as I do not cache 
the preamble.  If I do cache the preamble, then on the *first try only*,  the 
preview commands (-at-point, -buffer, or -document) generates the following 
error.

----
TeX Output exited as expected with code 1 at Mon Jun 13 12:05:55
Running `Preview-DviPS' with ``dvips -Pwww build/_region_.dvi -o 
build/_region_.prv/tmp31993roO/preview.ps''
Parser: End of Preview snippet 1 unexpected

Preview-DviPS killed: 9 at Mon Jun 13 12:05:55
----

But if I just do it again, it works the second time through.

----
TeX Output exited as expected with code 1 at Mon Jun 13 12:07:00
Running `Preview-PDF2DSC' with ``pdf2dsc build/_region_.pdf 
build/_region_.prv/tmp319934yU/preview.dsc''

Preview-PDF2DSC finished at Mon Jun 13 12:07:00
Running `Preview-Ghostscript' with ``/usr/local/bin/gs 
-sOutputFile\=build/_region_.prv/tmp319934yU/pr1-\%d.png -q -dDELAYSAFER 
-dNOPAUSE -DNOPLATFONTS -dPrinted -dTextAlphaBits\=4 -dGraphicsAlphaBits\=4 
-sDEVICE\=png16m -r121.447x121.645''

Preview-Ghostscript finished at Mon Jun 13 12:07:00
----

So for some reason, preview-…. wants to run dvips the first time after opening 
the file in a new session,  but afterwards, then it knows what to do.

Fortunately,  there is an easy workaround for now:  don’t cache the preamble.  

Michael






> On Jun 13, 2022, at 5:08 AM, Ikumi Keita <ikumi@ikumi.que.jp> wrote:
> 
> [EXTERNAL SENDER]
> 
> [ Cc: Al Haji-Ali ]
> 
> Hi Michael,
> 
>>>>>> "Braun, Michael" <braunm@mail.smu.edu> writes:
>> I just upgraded to AucTeX 13.1.3, and want to use the new feature of
>> putting intermediate and preview files in a subdirectory. So I set
>> TeX-output-dir to “build”, and all works well for compiling pdf
>> documents with the default and LuaTeX engines, and all preview
>> functions with the default engine. With luatex, preview-document also
>> works. But if TeX-engine is luatex, and I run preview-at-point or
>> preview-buffer, I get the following error:
>> Running `Preview-LaTeX' on `~/Documents/build/_region_' with ``lualatex 
>> --jobname=build/_region_  -file-line-error  --output-directory="build/" 
>> --synctex=1 
>> "\nonstopmode\nofiles\PassOptionsToPackage{active,tightpage,auctex}{preview}\AtBeginDocument{\ifx\ifPreview\undefined\RequirePackage[displaymath,floats,graphics,textmath,sections,footnotes]{preview}[2004/11/05]\fi}"
>>  "\input" "\detokenize{" _region_.tex "}"''
>> This is LuaHBTeX, Version 1.15.0 (TeX Live 2022) 
>> restricted system commands enabled.
>> LaTeX2e <2022-06-01> pre-release-0 (develop 2022-6-12 branch)
>> L3 programming layer <2022-06-02>
>> No auxiliary output files.
> 
>> ./build//_region_.tex:0: I can't write on file `build/_region_.log'.
>> Please type another transcript file name
>> ./build//_region_.tex:0: Emergency stop
>> ./build//_region_.tex:0:  ==> Fatal error occurred, no output PDF file 
>> produced!
>> TeX Output exited as expected with code 1 at Sun Jun 12 16:42:15
>> LaTeX: LaTeX found no preview images
> 
>> There is a build subdirectory, and in it there is a _region_.tex file,
>> but no _region_.log file is generated. The error occurs whether or not
>> I cache the preamble. If TeX-output-dir is nil, everything works well,
>> as expected.
> 
>> Here’s a minimal working example that generates the error.
> 
>> -----
>> \documentclass{article}
>> \begin{document}
> 
>> test $\alpha + \beta$.  %% preview should appear here.
> 
>> \end{document}
> 
>> % Local Variables: %
>> % TeX-engine: luatex  %
>> % TeX-output-dir: "build" %
>> % End: %
>> ——
> 
>> Any idea about what’s going on, and/or how to fix this?
> 
> Thanks for your report. When TeX-output-dir option is enabled,
> preview-latex have to omit subdirectory name from the parameter
> "--jobname" in invocation of lualatex, which wasn't implemented.
> 
> I think the attached patch fixes the problem. I'd like you to test it if
> possible.
> 
> Regards,
> Ikumi Keita
> #StandWithUkraine #StopWarInUkraine
> 
> <0001-Fix-region-preview-with-TeX-output-dir-feature.patch>