fn copy_fixture()

in src/llvm_tools.rs [260:295]

• 29 lines of code
• 5 McCabe index (conditional complexity)

    fn copy_fixture(fixture: &str) -> TempDir {
        let tmp_dir = tempfile::tempdir().expect("Failed to create temporary directory");
        let tmp_path = tmp_dir.path();
        let fixture_path = Path::new(FIXTURES_BASE).join(fixture);

        let mut entries = VecDeque::new();
        entries.push_front(fixture_path.clone());

        while let Some(entry) = entries.pop_back() {
            for item in WalkDir::new(&entry) {
                let Ok(item) = item else {
                    continue;
                };
                if item.path() == entry {
                    continue;
                }

                let new_tmp = tmp_path.join(
                    item.path()
                        .strip_prefix(fixture_path.clone())
                        .expect("prefix should be fixture path"),
                );

                if item.path().is_file() {
                    // regular file
                    fs::copy(item.path(), new_tmp).expect("Failed to copy file to tmp dir");
                } else {
                    // directory
                    fs::create_dir_all(new_tmp).expect("Failed to create dir");
                    entries.push_front(item.path().to_path_buf());
                }
            }
        }

        tmp_dir
    }