docs: update lua-language-server instructions (#1537)

passing `-E main.lua` is no longer required on the latest version (2.5.0) of `lua-language-server`

1 files changed, 2 insertions, 16 deletions

diff --git a/lua/lspconfig/server_configurations/sumneko_lua.lua b/lua/lspconfig/server_configurations/sumneko_lua.lua
index 4e51befe..b3c637aa 100644
--- a/lua/lspconfig/server_configurations/sumneko_lua.lua
+++ b/lua/lspconfig/server_configurations/sumneko_lua.lua
@@ -2,6 +2,7 @@ local util = require 'lspconfig.util'
 
 return {
   default_config = {
+    cmd = { 'lua-language-server' },
     filetypes = { 'lua' },
     root_dir = util.find_git_ancestor,
     single_file_support = true,
@@ -20,27 +21,12 @@ Lua language server.
 **By default, lua-language-server doesn't have a `cmd` set.** This is because nvim-lspconfig does not make assumptions about your path. You must add the following to your init.vim or init.lua to set `cmd` to the absolute path ($HOME and ~ are not expanded) of your unzipped and compiled lua-language-server.
 
 ```lua
-local system_name
-if vim.fn.has("mac") == 1 then
-  system_name = "macOS"
-elseif vim.fn.has("unix") == 1 then
-  system_name = "Linux"
-elseif vim.fn.has('win32') == 1 then
-  system_name = "Windows"
-else
-  print("Unsupported system for sumneko")
-end
-
--- set the path to the sumneko installation; if you previously installed via the now deprecated :LspInstall, use
-local sumneko_root_path = vim.fn.stdpath('cache')..'/lspconfig/sumneko_lua/lua-language-server'
-local sumneko_binary = sumneko_root_path.."/bin/"..system_name.."/lua-language-server"
-
 local runtime_path = vim.split(package.path, ';')
 table.insert(runtime_path, "lua/?.lua")
 table.insert(runtime_path, "lua/?/init.lua")
 
 require'lspconfig'.sumneko_lua.setup {
-  cmd = {sumneko_binary, "-E", sumneko_root_path .. "/main.lua"};
+  cmd = { "/path/to/lua-language-server" };
   settings = {
     Lua = {
       runtime = {