[upstream_utils] Add double-conversion to wpiutil

upstream_utils/double-conversion.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+
+import os
+import shutil
+from pathlib import Path
+
+from upstream_utils import Lib, has_prefix, walk_cwd_and_copy_if
+
+
+def fix_file(filename):
+    with open(filename) as f:
+        content = f.read()
+
+    # Prepend wpi namespace
+    content = content.replace(
+        "namespace double_conversion", "namespace wpi::double_conversion"
+    )
+
+    # Change includes
+    content = content.replace('include "', 'include "wpi/double-conversion/')
+
+    with open(filename, "w") as f:
+        f.write(content)
+
+
+def copy_upstream_src(wpilib_root: Path):
+    upstream_root = Path(".").absolute()
+    third_party_root = (
+        wpilib_root / "wpiutil/src/main/native/thirdparty/double-conversion"
+    )
+
+    # Delete old install
+    for d in [
+        "include",
+        "src",
+    ]:
+        shutil.rmtree(third_party_root / d, ignore_errors=True)
+
+    os.chdir(upstream_root / "double-conversion")
+    filenames = walk_cwd_and_copy_if(
+        lambda dp, f: f.endswith(".cc"),
+        third_party_root / "src",
+    )
+
+    for filename in filenames:
+        fix_file(filename)
+
+    os.chdir(upstream_root)
+    filenames = walk_cwd_and_copy_if(
+        lambda dp, f: has_prefix(dp, Path("double-conversion")) and f.endswith(".h"),
+        third_party_root / "include/wpi",
+    )
+
+    for filename in filenames:
+        fix_file(filename)
+
+
+def main():
+    name = "double-conversion"
+    url = "https://github.com/google/double-conversion.git"
+    tag = "v3.4.0"
+
+    double_conversion = Lib(name, url, tag, copy_upstream_src)
+    double_conversion.main()
+
+
+if __name__ == "__main__":
+    main()