Configuring texlab for neovim and evince

[NiklasKappel]

I just installed texlab and evince-synctex and set up the following configuration according to the wiki:

lspconfig.texlab.setup({
	settings = {
		texlab = {
			auxDirectory = "build",
			build = {
				args = { "-pdf", "-interaction=nonstopmode", "-synctex=1", "%f", "-auxdir=build" },
				onSave = true,
				forwardSearchAfter = true,
			},
			chktex = {
				onOpenAndSave = true,
			},
			forwardSearch = {
				executable = "evince-synctex",
				args = { "-f", "%l", "%p", '"code -g %f:%l"' },
			},
		},
	},
})

For me, autocompletion, diagnostics and build on save work. However, forward search does not seem to work.

After the pdf is built, evince does not open (should it?). If I open evince manually, the viewport does not move after the pdf is built.

If I call :TexlabBuild, neovim reports Build Error. If I call :TexlabForward, neovim reports Search Error.

Is there a problem with my config? How can I debug or view more information about the command errors?

[NiklasKappel]

I found out that my Fedora toolbox was missing the package python3-gobject. With this, forward search works now.

:TexlabBuild does not work, but I don't need it with build on save.

Reverse search does not work, but I guess this a problem with Neovim?

[pfoerster]

:TexlabBuild does not work, but I don't need it with build on save.

Does your build finish without errors? Maybe, the error message reported by Neovim is a bit misleading here (texlab returns a different exit code when the build completes with errors)

Reverse search does not work, but I guess this a problem with Neovim?

Yes, reverse search needs to be implemented by the editor and the viewer. The LSP server does not have an effect here.

[NiklasKappel]

Does your build finish without errors? Maybe, the error message reported by Neovim is a bit misleading here (texlab returns a different exit code when the build completes with errors)

I guess this is it, thanks. Trying again, the build finishes, the document is fine but neovim reports "Build Error". I can not find any errors in my logfiles and there are no diagnostics for my complex template, but if I try a minimal example

\documentclass{article}
\begin{document}
text
\end{document}

The message is "Build Success".

The only other thing I'm missing is support for magic comments to tell texlab to use xelatex for the one project I have that requires it.

Otherwise texlab works great for me and I'm very happy with it. :)

[winstxnhdw]

Hey, I am getting the same issue here. Did you ever manage to fix this?

[NiklasKappel]

I decided not to use reverse search and this was my final texlab config

lspconfig.texlab.setup({
	settings = {
		texlab = {
			build = {
				args = { "-pdf", "-interaction=nonstopmode", "-synctex=1", "%f", "-auxdir=build" },
				auxDirectory = "build",
				forwardSearchAfter = true,
				onSave = true,
			},
			chktex = {
				onOpenAndSave = true,
			},
			forwardSearch = {
				args = { "-f", "%l", "%p", '"code -g %f:%l"' },
				executable = "evince-synctex",
			},
		},
	},
})

[winstxnhdw]

Sure but doesn’t nvim still tell you Build Error?

[winstxnhdw]

Also, you can use nvim-texlabconfig to help you implement reverse search easier.

[NiklasKappel]

I don't have it set up right now, sorry. IIRC build on save worked perfectly fine so I never had to use :TexlabBuild.

[winstxnhdw]

Oh, no. All’s good. I was just letting you know that reverse search can be done.