Is it possible to have VimTeX call latexindent on save?

[TryerGit]

Hello,

Is it possible to have VimTeX call latexindent (https://github.com/cmhughes/latexindent.pl) for formatting?

I work in VSCode as well as VimTeX and VSCode plugin provides for the following settings.json options to have the tex file formatted:

"latex-workshop.formatting.latex": "latexindent",
"latex-workshop.formatting.latexindent.path": "/home/TryerGit/Downloads/latexindent",

If both use the same indenting tool, it would help to avoid spurious diffs in git version controlling.

Thanks!

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Edited to add: The following is the sequence of commands emitted to format the file under VSCode plugin on saving a tex file

[Format][latexindent] Formatting LaTeX. The command is /home/TryerGit/Downloads/latexindent:["-c","%WS1%/doc/","%WS1%/doc/__latexindent_temp_session1.tex","-y=defaultIndent: '    '"].
[Format][latexindent] Formatted %WS1%/doc/session1.tex
[Extension] onDidSaveTextDocument triggered: file://%WS1%/doc/session1.tex
[Cacher][Watcher] "change" emitted on file://%WS1%/doc/session1.tex.

Is there a way to achieve the same effect on save in VimTeX?

I observe that the documentation does mention latexindent.pl but I was not able to find an autocommand example which incorporates latexindent. Hence this OP.

[TryerGit]

At present, the following in vimtex.lua file contents seems to work in that both VSCode LatexWorkshop extension with its default options (see https://github.com/James-Yu/LaTeX-Workshop/wiki/Format#LaTeX-files) and VimTeX give the same git-identical .tex file on formatting an unformatted file. So, I suppose all is fine now. Thanks!

vim.pack.add({ "lervag/vimtex" })

vim.g.vimtex_view_method = 'zathura'
vim.g.vimtex_syntax_conceal_disable = 1
vim.g.vimtex_indent_enabled = 0
vim.g.vimtex_indent_bib_enabled = 0

vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*.tex",
  callback = function()
    local file = vim.fn.expand("%:p")
    vim.fn.system({
      "latexindent",
      "-c=/tmp/",
      "-w",
      file,
      "-y=defaultIndent:'    '"
    })
    vim.cmd("edit!") -- reload updated file
  end,
})

[lervag]

Sorry for the very slow response! I'm glad to see you figured it out; your solution with the autocommand looks good! I don't personally like autoformatting like this, so an alternative that I would have preferred is to create a mapping or an ex command to run the same system call when requested.