Function walk

build.rs:321–335

(base: &Path, dir: &Path, out: &mut Vec<String>)

/// forward-slash separators. Returns sorted paths so codegen is deterministic.
fn collect_files_relative(root: &Path) -> Vec<String> {
    fn walk(base: &Path, dir: &Path, out: &mut Vec<String>) {
        let Ok(entries) = fs::read_dir(dir) else {
            return;
        };
        for entry in entries.flatten() {
            let path = entry.path();
            if path.is_dir() {
                walk(base, &path, out);
            } else if path.is_file() {
                if let Ok(relative) = path.strip_prefix(base) {
                    out.push(relative.to_string_lossy().replace('\\', "/"));
                }
            }
        }
    }
    let mut files = Vec::new();
    walk(root, root, &mut files);
    files.sort();