Rejig runner gen

tests/xua_unit_tests/generate_unity_runner.py

@@ -0,0 +1,59 @@
+# Copyright 2024 XMOS LIMITED.
+# This Software is subject to the terms of the XMOS Public Licence: Version 1.
+
+import glob
+import os.path
+import subprocess
+import sys
+import argparse
+
+def parse_arguments():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--project-root", nargs='?', help="Project root directory")
+    parser.add_argument("--source-file", nargs='?', help="source file.")
+    parser.add_argument("--runner-file", nargs='?', help="runner file.")
+    args = parser.parse_args()
+    return args
+
+def get_ruby():
+    """
+    Check ruby is avaliable and return the command to invoke it.
+    """
+    interpreter_name = 'ruby'
+    try:
+        dev_null = open(os.devnull, 'w')
+        # Call the version command to check the interpreter can be run
+        subprocess.check_call([interpreter_name, '--version'],
+                              stdout=dev_null,
+                              close_fds=True)
+    except OSError as e:
+        print("Failed to run Ruby interpreter: {}".format(e), file=sys.stderr)
+        exit(1)  # TODO: Check this is the correct way to kill xwaf on error
+
+    return interpreter_name
+
+def get_unity_runner_generator(project_root_path):
+    """
+    Check the Unity generate_test_runner script is avaliable, and return the
+    path to it.
+    """
+    unity_runner_generator = os.path.join(
+        project_root_path, 'Unity', 'auto', 'generate_test_runner.rb')
+    if not os.path.exists(unity_runner_generator):
+        print("Unity repo not found in workspace", file=sys.stderr)
+        exit(1)  # TODO: Check this is the correct way to kill xwaf on error
+    return unity_runner_generator
+
+if __name__ == "__main__":
+    args = parse_arguments()
+    print(f"in python: root {args.project_root}, source {args.source_file}, runner {args.runner_file}")
+
+    try:
+        subprocess.check_call([get_ruby(),
+                               get_unity_runner_generator(args.project_root),
+                               args.source_file,
+                               args.runner_file])
+    except OSError as e:
+        print("Ruby generator failed for {}\n\t{}".format(unity_test_path, e),
+              file=sys.stderr)
+        exit(1)  # TODO: Check this is the correct way to kill xwaf on error