nvim: lsp: Use the new auto command API

nvim/.config/nvim/lua/lsp.lua

@@ -2,6 +2,7 @@ local nvim_lsp   = require 'lspconfig'
 local protocol   = require 'vim.lsp.protocol'
 local ts_utils   = require 'nvim-lsp-ts-utils'
 local util       = require 'lspconfig/util'
+local lightbulb  = require 'nvim-lightbulb'
 
 -- https://github.com/neovim/nvim-lspconfig/wiki/User-contributed-tips
 function FormatRangeOperator()
@@ -138,15 +139,43 @@ local on_attach = function(client, bufnr)
     vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gq', '<cmd>lua vim.lsp.buf.formatting()<CR>', opts)
   end
 
+  if client.resolved_capabilities.code_lens or client.resolved_capabilities.document_highlight then
+    vim.api.nvim_create_augroup("LSP", {clear = true})
+  end
+
   if client.resolved_capabilities.code_lens then
     vim.api.nvim_buf_set_keymap(bufnr, "n", "<Leader>l", "<cmd>lua vim.lsp.codelens.run()<CR>", opts)
-    vim.api.nvim_command [[autocmd CursorHold,CursorHoldI,InsertLeave <buffer> lua vim.lsp.codelens.refresh()]]
-    vim.api.nvim_command [[autocmd CursorHold,CursorHoldI <buffer> lua require'nvim-lightbulb'.update_lightbulb()]]
+    vim.api.nvim_create_autocmd({"CursorHold", "CursorHoldI", "InsertLeave"}, {
+      group   = "LSP",
+      buffer  = bufnr,
+      callback = function ()
+        vim.lsp.codelens.refresh()
+      end,
+    })
+    vim.api.nvim_create_autocmd({"CursorHold", "CursorHoldI"}, {
+      group   = "LSP",
+      buffer  = bufnr,
+      callback = function ()
+        lightbulb.update_lightbulb()
+      end,
+    })
   end
 
   if client.resolved_capabilities.document_highlight then
-    vim.api.nvim_command [[autocmd CursorHold  <buffer> lua vim.lsp.buf.document_highlight()]]
-    vim.api.nvim_command [[autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()]]
+    vim.api.nvim_create_autocmd("CursorHold", {
+      group   = "LSP",
+      buffer  = bufnr,
+      callback = function ()
+        vim.lsp.buf.document_highlight()
+      end,
+    })
+    vim.api.nvim_create_autocmd("CursorMoved", {
+      group   = "LSP",
+      buffer  = bufnr,
+      callback = function ()
+        vim.lsp.buf.clear_references()
+      end,
+    })
   end
 end