fix: use generator_output as output_dir (#191)

* fix: use generator_output as output_dir

fix: nodejs/node-gyp#2305

* Update pylib/gyp/generator/compile_commands_json.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update compile_commands_json.py

---------

Co-authored-by: Christian Clauss <cclauss@me.com>

pylib/gyp/generator/compile_commands_json.py

@@ -108,7 +108,10 @@ def GenerateOutput(target_list, target_dicts, data, params):
         cwd = os.path.dirname(build_file)
         AddCommandsForTarget(cwd, target, params, per_config_commands)
 
-    output_dir = params["generator_flags"].get("output_dir", "out")
+    try:
+        output_dir = params["options"].generator_output
+    except (AttributeError, KeyError):
+        output_dir = params["generator_flags"].get("output_dir", "out")
     for configuration_name, commands in per_config_commands.items():
         filename = os.path.join(output_dir, configuration_name, "compile_commands.json")
         gyp.common.EnsureDirExists(filename)