verbose output

Author: l0lawrence

eng/tools/azure-sdk-tools/azpysdk/verifytypes.py

@@ -199,7 +199,21 @@ def get_type_complete_score(
                     f"Running verifytypes failed: {e.stderr}. See https://aka.ms/python/typing-guide for information."
                 )
                 return -1.0
-            report = json.loads(e.output)
+            try:
+                report = json.loads(e.output)
+            except (json.JSONDecodeError, TypeError):
+                logger.error(
+                    f"pyright --verifytypes exited with code 1 but did not produce valid JSON output.\n"
+                    f"stdout: {e.output}\n"
+                    f"stderr: {e.stderr}\n"
+                    f"Re-running without --outputjson for diagnostic output..."
+                )
+                non_json_commands = [c for c in commands[1:] if c != "--outputjson"] + ["--verbose"]
+                diag = self.run_venv_command(executable, non_json_commands, cwd, check=False)
+                logger.error(f"Diagnostic pyright stdout:\n{diag.stdout}")
+                if diag.stderr:
+                    logger.error(f"Diagnostic pyright stderr:\n{diag.stderr}")
+                return -1.0
             if check_pytyped:
                 pytyped_present = report["typeCompleteness"].get("pyTypedPath", None)
                 if not pytyped_present: