Function copy_overlay_dir

tools/regen/src/csharp.rs:148–184

(src: &Path, dst: &Path)

}

fn copy_overlay_dir(src: &Path, dst: &Path) -> Result<()> {
    if !src.exists() {
        bail!("Skeleton directory does not exist: {}", src.display());
    }
    if !dst.exists() {
        bail!("Destination directory does not exist: {}", dst.display());
    }

    for entry in fs::read_dir(src)? {
        let entry = entry?;
        let src_path = entry.path();
        let dst_path = dst.join(entry.file_name());
        if entry.file_type()?.is_dir() {
            if dst_path.exists() {
                copy_overlay_dir(&src_path, &dst_path)?;
            }
        } else {
            if src_path.extension().is_some_and(|ext| ext == "meta") {
                let asset_path = dst_path
                    .parent()
                    .expect("dst_path should have a parent")
                    .join(dst_path.file_stem().expect(".meta file should have a file stem"));

                if asset_path.exists() {
                    fs::copy(&src_path, &dst_path)?;
                } else if dst_path.exists() {
                    fs::remove_file(&dst_path)?;
                }
                continue;
            }

            fs::copy(&src_path, &dst_path)?;
        }
    }

    Ok(())
}

pub fn regen_dlls() -> Result<()> {
    let workspace = workspace_dir();