neovim: Improve lua language server config

.gitignore

@@ -1,5 +0,0 @@
-# ignore these directory even though they're already ignored in my global
-# configuration to prevent lua-language-server from indexing them
-.direnv
-.devenv
-.local

.luarc.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "https://raw.githubusercontent.com/sumneko/vscode-lua/master/setting/schema.json",
+  "Lua": {
+    "diagnostics.globals": [
+      "vim",
+      "awesome",
+      "screen"
+    ],
+    "workspace.ignoreDir": [
+      ".direnv",
+      ".devenv",
+      ".local",
+    ]
+  }
+}

dotfiles/nvim/.config/nvim/lua/config.lua

@@ -1,6 +1,3 @@
--- Avoid duplicating error that vim is undefined all over the file
-local vim = vim
-
 -- Disable mouse
 vim.o.mouse = ""
 

dotfiles/nvim/.config/nvim/lua/plugins.lua

@@ -1,5 +1,3 @@
-local vim = vim -- just to prevent errors for the linter
-
 local Plug = vim.fn['plug#']
 vim.call('plug#begin')