Function run_static_server

perro_source/devtools/perro_cli/src/project.rs:1216–1232

(root: &Path, listener: TcpListener)

    let mut versions = fs::read_dir(&ndk_dir)
        .ok()?
        .filter_map(|entry| entry.ok().map(|entry| entry.path()))
        .filter(|path| path.is_dir())
        .collect::<Vec<_>>();
    versions.sort();
    versions.pop()
}

fn android_sdk_missing_error() -> String {
    "android sdk not found. set ANDROID_SDK_ROOT or ANDROID_HOME, or install Android SDK in the default platform location.".to_string()
}

fn android_ndk_missing_error(sdk_root: &Path) -> String {
    format!(
        "android ndk not found. set ANDROID_NDK_ROOT / ANDROID_NDK_HOME / NDK_HOME, or install an NDK under `{}`.",
        sdk_root.display()
    )
}

fn dev_web_command(args: &[String], cwd: &Path) -> Result<(), String> {
    if args.iter().any(|a| a == "--timings") {