Lsp stuff

Setup lsp server

  • Skim through lspconfig repo to get a general overview of how the config looks/works.

  • Then check server_configurations.md to make sure your language’s lsp server is present there.

  • Create a file in your custom folder. (I would suggest creating plugins dir in custom folder , so /custom/plugins/lspconfig.lua is the config file for this example).

  • Enter the file path in the chadrc’s lspconfig section :

  1. M.plugins = {
  2.    options = {
  3.       lspconfig = {
  4.          setup_lspconf = "custom.plugins.lspconfig",
  5.       },
  6.    },
  7. }
  9. -- so setup_lspconf = any file but that should be in custom dir!
  • The following file is an example lspconfig file
  1. local M = {}
  3. M.setup_lsp = function(attach, capabilities)
  4.    local lspconfig = require "lspconfig"
  6.    -- lspservers with default config
  7.    local servers = { "html", "cssls", "clangd" }
  9.    for _, lsp in ipairs(servers) do
  10.       lspconfig[lsp].setup {
  11.          on_attach = attach,
  12.          capabilities = capabilities,
  13.       }
  14.    end
  15. end
  17. return M

Overriding on_attach

You can override the default on_attach for example to change the server capabilities:

  1. M.setup_lsp = function(attach, capabilities)
  2.    -- [...]
  4.    for _, lsp in ipairs(servers) do
  5.       lspconfig[lsp].setup {
  6.          on_attach = function(client, bufnr)
  7.             attach(client, bufnr)
  8.             -- change gopls server capabilities
  9.             if lsp == "gopls" then
  10.                client.resolved_capabilities.document_formatting = true
  11.                client.resolved_capabilities.document_range_formatting = true
  12.             end
  13.          end,
  14.          capabilities = capabilities,
  15.       }
  16.    end
  17. end

Make sure you pass bufnr to the attach function.

lsp-installer

  1. :LspInstall clangd
  • We’ve enabled automatic installation in lsp-installer config, meaning that you dont have to run LspInstall anymore. Any lsp server you configure in your custom lspconfig file, lsp-installer will detect it and install the lsp server automatically!