Plugin scan through whole current directory when build_dir is nonempty

[user202729]

In function s:compiler.create_build_dir(), if build_dir is not empty, the plugin scans through the whole directory that contains the TeX file.

(from my reading of the code, it's to create separate build dir for each folder that contain file or something similar)

This is very slow in some cases.

I think this can be safely disabled when g:vimtex_disable_recursive_main_file_detection is set, because the main file is always the current file.

[lervag]

You're thinking about this line?

vimtex/autoload/vimtex/compiler/_template.vim

Line 174 in 45d59be

let l:dirs = split(glob(self.state.root . '/**/*.tex'), '\n')

Yes, the point is that if you use \include and similar, LaTeX will produce multiple aux files in the same tree hierarchy, and there will be an error if the output directory does not exist.

However, I realize there's a much better way to do this. VimTeX already parses the included files, so instead of globbing for all files, we can simply use this list. I'll fix and push asap.

[lervag]

I think this can be safely disabled when g:vimtex_disable_recursive_main_file_detection is set, because the main file is always the current file.

Perhaps, but it feels much more as a hack, because the option is really not related to this code.

[lervag]

Please test now.