feat: server CLI 骨架，Server 子命令十变体分派加 start 与 cleanup 最小实现

crates/oxide_cli/tests/server_cli.rs

@@ -0,0 +1,134 @@
+//! server CLI 集成测试：真实二进制的分派面（help 列子命令、占位臂退出码、
+//! cleanup 幂等、start 端到端）。
+//!
+//! start 端到端与 cleanup 走 well-known 全局路径（每用户单例）：测试先探活，
+//! socket 存活即 panic 不抢占存活 server；两枚触碰全局路径的测试经同一把
+//! 锁串行，避免相互干扰。
+
+use std::io::{BufReader, Write};
+use std::os::unix::net::UnixStream;
+use std::process::{Command, Output};
+use std::sync::Mutex;
+use std::time::{Duration, Instant};
+
+use oxide_cli::server::protocol::{self, FrameReader, ServerRequest, ServerResponse};
+use oxide_cli::server::sidecar;
+
+/// well-known 全局路径互斥锁：同测试二进制内触碰全局路径的测试串行执行。
+static WELL_KNOWN_LOCK: Mutex<()> = Mutex::new(());
+
+/// 运行 oxide 二进制并返回输出。
+fn oxide(args: &[&str]) -> Output {
+    Command::new(env!("CARGO_BIN_EXE_oxide"))
+        .args(args)
+        .output()
+        .expect("failed to run oxide")
+}
+
+/// 发送请求帧并读回一帧响应。
+fn send_and_recv(stream: &mut UnixStream, request: &ServerRequest) -> ServerResponse {
+    stream
+        .write_all(protocol::encode_request(request).as_bytes())
+        .expect("写请求应成功");
+    let mut reader = FrameReader::new(BufReader::new(stream));
+    let frame = reader.read_frame().expect("读响应应成功").expect("应读到响应帧");
+    protocol::parse_response(&frame).expect("响应帧解析应成功")
+}
+
+/// help 列全部十个子命令。
+#[test]
+fn server_help_lists_subcommands() {
+    let output = oxide(&["server", "--help"]);
+    assert!(output.status.success(), "server --help 应退 0");
+    let stdout = String::from_utf8_lossy(&output.stdout);
+    for name in [
+        "start", "stop", "status", "health", "info", "version", "cleanup", "restart", "log", "forge",
+    ] {
+        assert!(stdout.contains(name), "help 应列出 {name}：{stdout}");
+    }
+}
+
+/// 八个占位臂各退 2，stderr 含 not yet implemented。
+#[test]
+fn server_stub_subcommands_exit_2() {
+    for sub in ["stop", "status", "health", "info", "version", "restart", "log", "forge"] {
+        let output = oxide(&["server", sub]);
+        assert_eq!(output.status.code(), Some(2), "{sub} 应退 2");
+        let stderr = String::from_utf8_lossy(&output.stderr);
+        assert!(stderr.contains("not yet implemented"), "{sub} 应打印未实现提示：{stderr}");
+    }
+}
+
+/// cleanup 退 0（幂等：有残留则清理、无残留则报无残留），事后全局路径无文件。
+#[test]
+fn server_cleanup_exit_0() {
+    let _guard = WELL_KNOWN_LOCK.lock().expect("全局路径锁不应中毒");
+    assert!(
+        !sidecar::is_server_alive(&sidecar::well_known_socket_path()),
+        "存活 server 占用 well-known 路径，测试不抢占"
+    );
+
+    let output = oxide(&["server", "cleanup"]);
+    assert_eq!(output.status.code(), Some(0), "cleanup 应退 0");
+    assert!(!sidecar::well_known_socket_path().exists(), "socket 文件应不存在");
+    assert!(!sidecar::well_known_sidecar_path().exists(), "sidecar 文件应不存在");
+}
+
+/// start 端到端：起真实子进程，well-known 路径连接，版本帧断言构建期版本，
+/// 关闭帧后子进程退 0，socket 与 sidecar 文件被删。
+#[test]
+fn server_start_e2e() {
+    let _guard = WELL_KNOWN_LOCK.lock().expect("全局路径锁不应中毒");
+    let socket = sidecar::well_known_socket_path();
+    let sidecar_path = sidecar::well_known_sidecar_path();
+
+    // 探活先行：存活 server 占用全局路径时 panic，不抢占。
+    assert!(!sidecar::is_server_alive(&socket), "存活 server 占用 well-known 路径，测试不抢占");
+
+    // worker 数压到 2：避免按宿主核数预热的成本。
+    let mut child = Command::new(env!("CARGO_BIN_EXE_oxide"))
+        .args(["server", "start", "--workers", "2"])
+        .spawn()
+        .expect("oxide server start 应可启动");
+
+    // 轮询 socket 文件出现（10 秒截止）判就绪。
+    let deadline = Instant::now() + Duration::from_secs(10);
+    while !socket.exists() {
+        assert!(Instant::now() < deadline, "socket 文件未出现");
+        std::thread::sleep(Duration::from_millis(10));
+    }
+
+    // 版本请求帧：版本应等于构建期版本。
+    let mut stream = UnixStream::connect(&socket).expect("连接 server 应成功");
+    let response = send_and_recv(&mut stream, &ServerRequest::Version);
+    match response {
+        ServerResponse::Version { version } => {
+            assert_eq!(version, env!("CARGO_PKG_VERSION"), "版本应与构建期版本一致");
+        }
+        other => panic!("应得 Version 帧，实得 {other:?}"),
+    }
+
+    // 关闭请求帧：读回关闭确认帧。
+    let response = send_and_recv(&mut stream, &ServerRequest::Shutdown);
+    assert!(matches!(response, ServerResponse::Shutdown), "应得关闭确认帧：{response:?}");
+    drop(stream);
+
+    // 等子进程以退出码 0 退出（30 秒截止）。
+    let deadline = Instant::now() + Duration::from_secs(30);
+    loop {
+        match child.try_wait() {
+            Ok(Some(status)) => {
+                assert_eq!(status.code(), Some(0), "server 应以退出码 0 退出：{status:?}");
+                break;
+            }
+            Ok(None) => {
+                assert!(Instant::now() < deadline, "server 应在有界时间内退出");
+                std::thread::sleep(Duration::from_millis(50));
+            }
+            Err(err) => panic!("等待子进程失败：{err}"),
+        }
+    }
+
+    assert!(!socket.exists(), "socket 文件应被删除");
+    assert!(!sidecar_path.exists(), "sidecar 文件应被删除");
+}