setup lsp for lua

after/plugin/lsp.lua

@@ -0,0 +1,25 @@
+local lspconfig = require("lspconfig")
+
+lspconfig.lua_ls.setup({
+  on_init = function(client)
+    local path = client.workspace_folders[1].name
+    if not vim.loop.fs_stat(path .. "/.luarc.json") and not vim.loop.fs_stat(path .. "/.luarc.jsonc") then
+      client.config.settings = vim.tbl_deep_extend("force", client.config.settings, {
+        Lua = {
+          runtime = {
+            version = "LuaJIT",
+          },
+          workspace = {
+            checkThirdParty = false,
+            library = {
+              vim.env.VIMRUNTIME,
+            },
+          },
+        },
+      })
+      client.notify("workspace/didChangeConfiguration", { settings = client.config.settings })
+    end
+    return true
+  end,
+})
+