164 lines
4.9 KiB
Rust
164 lines
4.9 KiB
Rust
use std::sync::Mutex;
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use std::time::Duration;
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use tauri::Manager;
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use tauri_plugin_shell::process::{CommandChild, CommandEvent};
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use tauri_plugin_shell::ShellExt;
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// ===== 配置常量 =====
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/// Sidecar App 启动超时时间（秒）
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const STARTUP_TIMEOUT_SECS: u64 = 5;
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/// 默认起始端口
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const DEFAULT_PORT: u16 = 3000;
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/// 端口扫描范围（从起始端口开始扫描的端口数量）
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const PORT_SCAN_RANGE: u16 = 100;
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/// 窗口默认宽度
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const DEFAULT_WINDOW_WIDTH: f64 = 1200.0;
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/// 窗口默认高度
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const DEFAULT_WINDOW_HEIGHT: f64 = 800.0;
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/// 窗口标题
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const WINDOW_TITLE: &str = "Tauri App";
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// ===== 数据结构 =====
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/// 全局状态：存储 Sidecar 进程句柄
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pub struct SidecarProcess(pub Mutex<Option<CommandChild>>);
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// 检查端口是否可用（未被占用）
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async fn is_port_available(port: u16) -> bool {
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tokio::net::TcpListener::bind(format!("127.0.0.1:{}", port))
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.await
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.is_ok()
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}
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// 查找可用端口
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async fn find_available_port(start: u16) -> u16 {
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for port in start..start + PORT_SCAN_RANGE {
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if is_port_available(port).await {
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return port;
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}
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}
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start // 回退到起始端口
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}
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/// 启动 Sidecar 进程并创建主窗口
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pub fn spawn_sidecar(app_handle: tauri::AppHandle) {
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// 检测是否为开发模式
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let is_dev = cfg!(debug_assertions);
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if is_dev {
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// 开发模式：直接创建窗口连接到 Vite 开发服务器
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println!("🔧 开发模式");
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match tauri::WebviewWindowBuilder::new(
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&app_handle,
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"main",
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tauri::WebviewUrl::External("http://localhost:3000".parse().unwrap()),
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)
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.title(WINDOW_TITLE)
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.inner_size(DEFAULT_WINDOW_WIDTH, DEFAULT_WINDOW_HEIGHT)
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.center()
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.build()
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{
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Ok(_) => println!("✓ 开发窗口创建成功"),
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Err(e) => {
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eprintln!("✗ 窗口创建失败: {}", e);
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}
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}
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return;
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}
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// 生产模式：启动 sidecar 二进制
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tauri::async_runtime::spawn(async move {
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println!("🚀 生产模式");
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// 查找可用端口
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let port = find_available_port(DEFAULT_PORT).await;
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println!("使用端口: {}", port);
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// 启动 sidecar
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let sidecar = app_handle
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.shell()
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.sidecar("app")
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.expect("无法找到 app")
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.env("PORT", port.to_string());
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let (mut rx, child) = sidecar.spawn().expect("启动 sidecar 失败");
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// 保存进程句柄到全局状态
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if let Some(state) = app_handle.try_state::<SidecarProcess>() {
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*state.0.lock().unwrap() = Some(child);
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}
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// 监听 stdout，等待服务器就绪信号
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let start_time = std::time::Instant::now();
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let timeout = Duration::from_secs(STARTUP_TIMEOUT_SECS);
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let mut app_ready = false;
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while let Some(event) = rx.recv().await {
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if let CommandEvent::Stdout(line) = event {
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let output = String::from_utf8_lossy(&line);
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println!("App: {}", output);
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// 检测 App 启动成功的标志
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if output.contains("Listening on:") || output.contains("localhost") {
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app_ready = true;
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println!("✓ App 启动成功！");
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// 创建主窗口
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let url = format!("http://localhost:{}", port);
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tauri::WebviewWindowBuilder::new(
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&app_handle,
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"main",
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tauri::WebviewUrl::External(url.parse().unwrap()),
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)
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.title(WINDOW_TITLE)
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.inner_size(DEFAULT_WINDOW_WIDTH, DEFAULT_WINDOW_HEIGHT)
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.center()
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.build()
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.expect("创建窗口失败");
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break;
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}
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}
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// 超时检查
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if start_time.elapsed() > timeout {
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eprintln!("✗ 启动超时: App 未能在 {} 秒内启动", STARTUP_TIMEOUT_SECS);
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break;
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}
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}
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if !app_ready {
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eprintln!("✗ App 启动失败");
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std::process::exit(1);
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}
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});
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}
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/// 清理 Sidecar 进程 (在应用退出时调用)
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pub fn cleanup_sidecar_process(app_handle: &tauri::AppHandle) {
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// 只在生产模式下清理 sidecar 进程
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let is_dev = cfg!(debug_assertions);
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if is_dev {
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return;
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}
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println!("应用退出，正在清理 Sidecar 进程...");
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if let Some(state) = app_handle.try_state::<SidecarProcess>() {
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if let Ok(mut process) = state.0.lock() {
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if let Some(child) = process.take() {
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let _ = child.kill();
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println!("✓ Sidecar 进程已终止");
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}
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}
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}
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}
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