"Compile selected lines" works but cannot open a viewer when the build_dir of vimtex_compiler_latexmk is set

[krishnakumarg1984]

Description

With the following configuration,

  let g:vimtex_compiler_latexmk = {
  \ 'build_dir' : 'build',
  \ 'callback' : 1,
  \ 'continuous' : 1,
  \ 'executable' : 'latexmk',
  \ 'hooks': [function('Callback')],
  \ 'options' : [
  \   '-verbose',
  \   '-recorder',
  \   '-file-line-error',
  \   '-synctex=1',
  \   '-interaction=nonstopmode',
  \ ]
  \}

Visually selecting a few lines of latex source code, and performing a <leader>lL triggers a successful compilation of the selected lines. However, the view command fails with the error message:

VimTeX: viewer cannot read the PDF file.

This is with the default settings, wherein the viewer is supposed to automatically open and do a forward search.

Setting the 'build_dir' back to '' ensures a successful compilation of selected lines and immediately opens the PDF viewer

Steps to reproduce

Please see description above

Expected behavior

No response

Actual behavior

No response

Do you use a latexmkrc file?

N/A

VimtexInfo

N/A?

[lervag]

Interesting. I'll look into this when I get the time!

[lervag]

With the following configuration,

  let g:vimtex_compiler_latexmk = {
  \ 'build_dir' : 'build',
  \ 'callback' : 1,
  \ 'continuous' : 1,
  \ 'executable' : 'latexmk',
  \ 'hooks': [function('Callback')],
  \ 'options' : [
  \   '-verbose',
  \   '-recorder',
  \   '-file-line-error',
  \   '-synctex=1',
  \   '-interaction=nonstopmode',
  \ ]
  \}

1. You don't need to set values to their defaults. Thus, you can simplify the above to this:

     let g:vimtex_compiler_latexmk = {
           \ 'build_dir' : 'build',
           \ 'hooks': [function('Callback')],
           \ 'options' : [
           \   '-verbose',
           \   '-recorder',
           \   '-file-line-error',
           \   '-synctex=1',
           \   '-interaction=nonstopmode',
           \ ]
           \}

2. What is the 'Callback' function?

3. I believe the callback function and -recorder option is not relevant to this issue anyway, which means you could probably simplify (for this issue) to

     let g:vimtex_compiler_latexmk = { 'build_dir' : 'build' }

[lervag]

I believe this is fixed now, please test.

[krishnakumarg1984]

@lervag Tested, and while it compiles the selected lines, two PDF viewers are opened

[krishnakumarg1984]

err.... It also creates a file main_vimtex_selected.tex in my project's root.

[lervag]

@lervag Tested, and while it compiles the selected lines, two PDF viewers are opened

Not on my end. Can you make a minimal example for that?

[lervag]

err.... It also creates a file main_vimtex_selected.tex in my project's root.

Ah, yes. I guess you'd expect the temporary file to be created inside the build_dir. Agreed, I'll update accordingly.