LSP setup for nvim-tree development

[remvn]

When I was checking for vim api type definition (the one from library) using vim.lsp.buf.definition

I ran into this error message (even though it still takes me to the definition of that type)

and the root directory in :LspInfo changes to the home directory:

My lua_ls setup is auto configured by mason_lspconfig , with all the options left default.
Is there anything I'm missing here?

[alex-courtis]

I ran into this error message (even though it still takes me to the definition of that type)

That's normal. lua-language-server will not start with your home directory as root. It's not clear from the documentation link, however I think that's reasonable as it would scan every lua file under your home.

Why does this happen? It could be scanning up the directory tree for .luarc.json files and finds only ~/.luarc.json.

I'm not familiar with meson_lspconfig, however neovim/nvim-lspconfig and a bare vim.lsp.start call both work. I'll update the wiki.

[alex-courtis]

Native, neovim/nvim-lspconfig and hrsh7th/nvim-cmp configurations and samples added to wiki:
Lua Language Server

I'd be most grateful if you tested those, as well as adding a mason_lspconfig section.

[remvn]

I believe mason-lspconfig is just a wrapper for calling nvim-lspconfig default setup automatically mason-lspconfig docs

I tried disable mason-lspconfig and use your setup from the wiki but still the same behavior

It's working perfectly within this project scope (jumping around, has intellisense for vim's api)
However this error only show up when I try to jump to some type definitions in luv library
for example:

Digging around these library directory I found that they don't have .luarc.json but they do have a .git file

And for some reason... lua_ls default setup doesn't include .git in root_dir even though the docs has it nvim-lspconfig source

Adding .git manually and the error will go away:

lspconfig.lua_ls.setup({
    root_dir = lspconfig.util.root_pattern(
        ".luarc.json",
        ".luarc.jsonc",
        ".luacheckrc",
        ".stylua.toml",
        "stylua.toml",
        "selene.toml",
        "selene.yml",
        ".git"
    ),
})

root directory in :LspInfo seems correct

[alex-courtis]

The arch package places them in /usr/lib however it's unclear whether the location causes luals to treat them differently.

:  ; yay -Ql lua-language-server | grep luv
lua-language-server /usr/lib/lua-language-server/meta/3rd/luv/
lua-language-server /usr/lib/lua-language-server/meta/3rd/luv/config.json
lua-language-server /usr/lib/lua-language-server/meta/3rd/luv/library/
lua-language-server /usr/lib/lua-language-server/meta/3rd/luv/library/errors.lua
...

You could try putting a .luarc.json in there.

I've got a "standard one" ~/.config/nvim/.luarc.json which is also linked at ~/.local/share/nvim/site/pack/packer/start/.luarc.json so that I can hack on other plugins on the runtime path.

``~/.local/share/nvim/.luarc.json` seems like a good balance, I might try that out.

[alex-courtis]

And for some reason... lua_ls default setup doesn't include .git in root_dir even though the docs has it nvim-lspconfig source

This is very strange. Other configurations do explicitly specify .git but lua_ls does not.

It looks like there is extra root logic for some configurations... like finding .git

      root = util.root_pattern 'lua/'(fname)
      if root then
        return root
      end
      return util.find_git_ancestor(fname)

Experimenting with a new repo did stop at .git with the default config, but not for other repos as you found. It seems that explicitly adding .git is the best course of action.

None of this is documented or clear, very disappointing. Thanks for digging, now I know and understand limitations.

[remvn]

Experimenting with a new repo did stop at .git with the default config, but not for other repos as you found. It seems that explicitly adding .git is the best course of action.

Sounds great! Glad that neovim now comes with vim's api types.