Function build_android_command

perro_source/devtools/perro_cli/src/project.rs:837–872

(args: &[String], cwd: &Path)

fn catch_unwind_silent<T>(f: impl FnOnce() -> T) -> Result<T, Box<dyn std::any::Any + Send>> {
    if env::var_os("PERRO_FORMAT_DEBUG_PANIC").is_some() {
        return panic::catch_unwind(AssertUnwindSafe(f));
    }
    let _guard = PANIC_HOOK_LOCK.lock().expect("panic hook lock poisoned");
    let hook = panic::take_hook();
    panic::set_hook(Box::new(|_| {}));
    let result = panic::catch_unwind(AssertUnwindSafe(f));
    panic::set_hook(hook);
    result
}

fn scene_parse_error_detail(src: &str, err: Box<dyn std::any::Any + Send>) -> String {
    let msg = panic_payload_to_string(&err);
    if let Some(hint) = scene_syntax_hint(src) {
        return format!("{msg}; {hint}");
    }
    msg
}

fn panic_payload_to_string(err: &(dyn std::any::Any + Send)) -> String {
    if let Some(msg) = err.downcast_ref::<String>() {
        return msg.clone();
    }
    if let Some(msg) = err.downcast_ref::<&'static str>() {
        return (*msg).to_string();
    }
    "unknown parser error".to_string()
}

fn scene_syntax_hint(src: &str) -> Option<String> {
    for (idx, line) in src.lines().enumerate() {
        let trimmed = line.trim();
        if trimmed.starts_with('/') && trimmed.ends_with(']') {
            return Some(format!(
                "line {} looks like missing `[` before closing tag: `{trimmed}`",
                idx + 1
            ));
        }
    }
    None