gopls version check issue #114

lua/go/gopls.lua

@@ -107,6 +107,11 @@ function M.version()
   local cache_dir = vim.fn.stdpath("cache")
   local path = string.format("%s%sversion.txt", cache_dir, utils.sep())
   local gopls = _GO_NVIM_CFG.gopls_cmd or { "gopls" }
+
+  if vim.fn.executable(gopls) == 0 then
+    vim.notify("gopls not found", vim.log.levels.WARN)
+    return
+  end
   vim.fn.jobstart({ gopls[1], "version" }, {
     on_stdout = function(c, data, name)
       local msg = ""
@@ -213,6 +218,9 @@ local setups = {
 
 M.setups = function()
   local v = M.version()
+  if v == nil then
+    return
+  end
   if v > "0.7" then
     setups.settings = vim.tbl_deep_extend("force", setups.settings, {
       experimentalPostfixCompletions = true,

lua/go/lsp.lua

@@ -24,9 +24,11 @@ local on_attach = function(client, bufnr)
     client.resolved_capabilities.document_formatting = false
   end
 
-  codelens_enabled = client.resolved_capabilities["code_lens"]
-  if not codelens_enabled and _GO_NVIM_CFG.lsp_codelens then
-    vim.notify("please enable codelens in your gopls setup", vim.lsp.log_levels.WARN)
+  if _GO_NVIM_CFG.lsp_codelens then
+    codelens_enabled = client.resolved_capabilities["code_lens"]
+    if not codelens_enabled then
+      vim.notify("codelens not support by your gopls", vim.lsp.log_levels.WARN)
+    end
   end
   if _GO_NVIM_CFG.lsp_keymaps == true then
     buf_set_keymap("n", "gD", ":lua vim.lsp.buf.formatting()<CR>", opts)
@@ -59,8 +61,8 @@ local gopls = require("go.gopls").setups()
 
 local extend_config = function(opts)
   opts = opts or {}
-  if next(opts) == nil then
-    return
+  if next(opts) == nil or gopls == nil then
+    return gopls
   end
   for key, value in pairs(opts) do
     if type(gopls[key]) == "table" then
@@ -85,6 +87,9 @@ function M.client()
 end
 
 function M.config()
+  if gopls == nil then
+    return
+  end
   gopls.on_attach = on_attach
   if type(_GO_NVIM_CFG.lsp_on_attach) == "function" then
     gopls.on_attach = _GO_NVIM_CFG.lsp_on_attach