feat(neovim): setup sumneko_lua language server

home/editors/lsp.nix

@@ -13,9 +13,10 @@
     nodePackages.vscode-langservers-extracted
     nodePackages.typescript-language-server
     nodePackages.dockerfile-language-server-nodejs
-    haskellPackages.haskell-language-server
     nodePackages.diagnostic-languageserver
+    haskellPackages.haskell-language-server
     rust-analyzer
+    sumneko-lua-language-server
 
     # linters & formatters
     nodePackages.eslint

home/editors/neovim/lsp/lsp.lua

@@ -50,7 +50,32 @@ config.omnisharp.setup{
   cmd = {"omnisharp", "--languageserver", "--hostPID", tostring(pid)},
 }
 
-config.diagnosticls.setup{
+local runtime_path = vim.split(package.path, ';')
+table.insert(runtime_path, "lua/?.lua")
+table.insert(runtime_path, "lua/?/init.lua")
+
+config.sumneko_lua.setup {
+  capabilities = capabilities,
+  settings = {
+    Lua = {
+      runtime = {
+        version = "LuaJIT",
+        path = runtime_path,
+      },
+      diagnostics = {
+        globals = {"vim"},
+      },
+      workspace = {
+        library = vim.api.nvim_get_runtime_file("", true),
+      },
+      telemetry = {
+        enable = false,
+      },
+    },
+  },
+}
+
+config.diagnosticls.setup {
   on_attach = diagnosticls_on_attach,
   filetypes = {
     "javascript",