[upstream_utils] Rework upstream_utils scripts (#6829)

upstream_utils/expected.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+
+import os
+import re
+import shutil
+
+from upstream_utils import (
+    get_repo_root,
+    clone_repo,
+    comment_out_invalid_includes,
+    walk_cwd_and_copy_if,
+    git_am,
+    Lib,
+)
+
+
+def copy_upstream_src(wpilib_root):
+    wpiutil = os.path.join(wpilib_root, "wpiutil")
+
+    # Copy expected header into allwpilib
+    dest_filename = os.path.join(
+        wpiutil, "src/main/native/thirdparty/expected/include/wpi/expected"
+    )
+    shutil.copyfile("include/tl/expected.hpp", dest_filename)
+
+    # Rename namespace from tl to wpi
+    with open(dest_filename) as f:
+        content = f.read()
+    content = content.replace("namespace tl", "namespace wpi")
+    content = content.replace("tl::", "wpi::")
+    content = content.replace("TL_", "WPI_")
+    with open(dest_filename, "w") as f:
+        f.write(content)
+
+
+def main():
+    name = "expected"
+    url = "https://github.com/TartanLlama/expected"
+    # master on 2024-01-25
+    tag = "3f0ca7b19253129700a073abfa6d8638d9f7c80c"
+
+    expected = Lib(name, url, tag, [], copy_upstream_src)
+    expected.main()
+
+
+if __name__ == "__main__":
+    main()