Enable lsp install plugin

lua/mylsp.lua

@@ -1,6 +1,19 @@
 local nvim_lsp = require 'lspconfig'
 local utils = require('utils')
 
+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
+
+local sumneko_root_path = 'D:/tmp/lua-language-server'
+local sumneko_binary = sumneko_root_path.."/bin/"..system_name.."/lua-language-server"
 -- We use the default settings for ccls and pylsp: the option table can stay empty
 -- nvim_lsp.ccls.setup {}
 nvim_lsp.pyright.setup{}
@@ -12,7 +25,6 @@ nvim_lsp.groovyls.setup{
     cmd = { "java", "-jar", "D:/tmp/groovy-language-server/build/libs/groovy-language-server-all.jar" }
 }
 
-
 -- Add additional capabilities supported by nvim-cmp
 local capabilities = vim.lsp.protocol.make_client_capabilities()
 capabilities.textDocument.completion.completionItem.documentationFormat = { 'markdown', 'plaintext' }
@@ -91,7 +103,7 @@ local on_attach = function(client, bufnr)
 end
 
 -- Enable some language servers with the additional completion capabilities offered by nvim-cmp
-local servers = { 'clangd', 'pyright', 'cmake', 'jsonls' }
+local servers = {'clangd', 'pyright', 'cmake', 'jsonls'}
 for _, lsp in ipairs(servers) do
   nvim_lsp[lsp].setup {
     on_attach = on_attach,
@@ -99,6 +111,19 @@ for _, lsp in ipairs(servers) do
   }
 end
 
+nvim_lsp.sumneko_lua.setup{
+  cmd = {sumneko_binary, "-E", sumneko_root_path .. "/main.lua"},
+  on_attach = on_attach,
+  capabilities = capabilities,
+}
+
+nvim_lsp.groovyls.setup{
+    -- Unix
+    cmd = { "java", "-jar", "D:/tmp/groovy-language-server/build/libs/groovy-language-server-all.jar" },
+    on_attach = on_attach,
+    capabilities = capabilities,
+}
+
 local signs = { Error = " ", Warning = " ", Hint = " ", Information = " " }
 for type, icon in pairs(signs) do
   local hl = "LspDiagnosticsSign" .. type