don't do diagnostics when workspace is not ready

Author: folke

changelog.md

@@ -2,6 +2,7 @@
 
 ## Unreleased
 <!-- Add all new changes here. They will be moved under a version at release -->
+* `FIX` Don't do diagnostics when the workspace is not ready
 * `NEW` Reference workspace symbols in comments using `[some text](lua://symbolName)` syntax
 
 ## 3.9.0

script/provider/diagnostic.lua

@@ -246,6 +246,9 @@ local function isValid(uri)
     if not config.get(uri, 'Lua.diagnostics.enable') then
         return false
     end
+    if not ws.isReady(uri) then
+        return false
+    end
     if files.isLibrary(uri, true) then
         local status = config.get(uri, 'Lua.diagnostics.libraryFiles')
         if status == 'Disable' then