script file `./markdown1.luabridge.lua` not found

[hongy19]

markdown works well before but I met following mistake after upgrading.

markdown1.log

I use latex with latexmk and I could see markdown1.luabridge.lua in latex.out folder. I guess texlua should use latex.out/markdown1.luabridge.lua? but texlua is trying to use ./markdown1.luabridge.lua. I has configured "\def\markdownOptionOutputDir{latex.out}" to indicate output folder but seems texlua doesn't notice it.

(|texlua ./markdown1.luabridge.lua)
\markdownInputFileStream=\read2

here comes my .latexmkrc content:

$pdf_mode = 5;

$pdflatex = "pdflatex -file-line-error -halt-on-error -interaction=nonstopmode -synctex=1 %O %S";
$xelatex = "xelatex --shell-escape -file-line-error -halt-on-error -interaction=nonstopmode -no-pdf -synctex=1 %O %S";
$xdvipdfmx = "xdvipdfmx -E -o %D %O %S";

$out_dir="latex.out";
#$aux_dir="latex.out";

#$preview_mode = 1;
#$pdf_previewer="~/bin/pdf.sh";
#$pdf_previewer="/usr/bin/mupdf";
$pdf_previewer="start mupdf";

$clean_ext = "hd nav snm synctex.gz xdv";

$do_cd=1;

# How to make the PDF viewer update its display when the PDF file changes.  See the man page for a description of each method.
$pdf_update_method=2;
#
# # When PDF update method 2 is used, the number of the Unix signal to send
$pdf_update_signal='SIGHUP'

[Witiko]

I ha[ve] configured "\def\markdownOptionOutputDir{latex.out}" to indicate output folder but seems texlua doesn't notice it.

@hongy19: Hey there, thanks for reaching out!

The option \markdownOptionOutputDir has been deprecated in version 3.4.1 (2024-02-16). Instead, the output directory is automatically determined based on the parameter -output-directory of XeTeX. You should be able to remove \def\markdownOptionOutputDir{latex.out} from file markdown1.tex and achieve the same result. This won't solve your issue but will make your file tidier.

Here is what seems to be the cause of your issue:

1. The library lt3luabridge that we use to execute texlua does not automatically determine the output directory based on the parameter -output-directory, see https://github.com/Witiko/lt3luabridge/issues/26.
2. We do not pass the value of \markdownOptionOutputDir to the library lt3luabridge either.

You can fix your issue by adding the following code before \usepackage{markdown} in file markdown1.tex:

\def\markdownOptionOutputDir{latex.out}
\ExplSyntaxOn
\str_new:N
  \g_luabridge_output_dirname_str
\str_gset:NV
  \g_luabridge_output_dirname_str
  \markdownOptionOutputDir
\ExplSyntaxOff

After I have fixed both causes in the next release, you should be able to remove the above code from file markdown1.tex.

Please, let me know if this solved your issue, so that I know that I am on the right track!

[hongy19]

@Witiko thanks for your feedback

I got following error with your suggestion, Latex log: markdown.log

| LaTeX Error: Control sequence \g_luabridge_output_dirname_str already defined.   

\documentclass{article}
\usepackage{markdown}
\def\markdownOptionOutputDir{latex.out}
\ExplSyntaxOn
\str_new:N
  \g_luabridge_output_dirname_str
\str_gset:NV
  \g_luabridge_output_dirname_str
  \markdownOptionOutputDir
\ExplSyntaxOff

\begin{document}
\begin{markdown}

- item1
  - item11
  - item12
- item2
    - item21
    - item22

\end{markdown}

\end{document}

[Witiko]

LaTeX Error: Control sequence \g_luabridge_output_dirname_str already defined.

Does it help if you move \usepackage{markdown} below the code, i.e. between \ExplSyntaxOff and \begin{document}?

[hongy19]

LaTeX Error: Control sequence \g_luabridge_output_dirname_str already defined.

Does it help if you move \usepackage{markdown} below the code, i.e. between \ExplSyntaxOff and \begin{document}?

Thanks so much! it works

\documentclass{article}

\def\markdownOptionOutputDir{latex.out}
\ExplSyntaxOn
\str_new:N
  \g_luabridge_output_dirname_str
\str_gset:NV
  \g_luabridge_output_dirname_str
  \markdownOptionOutputDir
\ExplSyntaxOff
\usepackage{markdown}

\begin{document}
\begin{markdown}

- item1
  - item11
  - item12
- item2
    - item21
    - item22

\end{markdown}

\end{document}

[Witiko]

I am glad that worked! I plan to look at fixing this issue in the package later today. In addition to the issues from https://github.com/Witiko/markdown/issues/457#issuecomment-2203637382, we need a better tests for -output-directory, so that we don't see similar silent regressions in the future.