How to integrate elixir-tools

[Pilgrim1379]

There's a relatively new elixir-tools which to my understanding automatically sets up credo language server and elixirls for neovim. It's got a sample config on it's project page and is currently not listed on the lspconfig website as supported.

I'll like lsp-zero to handle it's setup. What's gotten me stuck is, going by their config, I cant figure out how to make it use lsp-zero's on_attach. I had quite a bit of functionality in my old on_attach which lsp-zero now provides. I just don't want to create a seperate local an_attach function, duplicating most of lsp-zero functionaly just for this one server.

[VonHeikemen]

Are you using the v2.x branch of lsp-zero? If you are the on_attach() in lsp-zero will just work. There is no need for lsp-zero to handle the setup of the LSP server.

[Pilgrim1379]

Yes I'm on the v2.x branch. If I understand you correctly, my current code is this:

-- Elixir Tools
local elixir = require("elixir")
local elixirls = require("elixir.elixirls")

elixir.setup {
  credo = {
    enable = true
  },
  elixirls = {
    enabled = true,
    cmd = "elixir-ls",
    settings = elixirls.settings {
      dialyzerEnabled = true,
      enableTestLenses = false,
    },
    on_attach = on_attach,
    capabilities = capabilities
  }
}

and your saying below should just work?

-- Elixir Tools
local elixir = require("elixir")
local elixirls = require("elixir.elixirls")

elixir.setup {
  credo = {
    enable = true
  },
  elixirls = {
    enabled = true,
    cmd = "elixir-ls",
    settings = elixirls.settings {
      dialyzerEnabled = true,
      enableTestLenses = false,
    },
  }
}

And should this come before lsp.setup() or after?

[VonHeikemen]

If you installed elixir-ls using mason.nvim, then it should be after.

You should still include the capabilities key in elixirls.

[Pilgrim1379]

Thanks. Actually I realised elixir-tools is trying to something similar to what rust-tools does so I addapted the example setup and it's all good now.