fix: sync remote ssh targets

src/commands/gateway-status.test.ts

@@ -11,6 +11,7 @@ const resolveGatewayPort = vi.fn(() => 18789);
 const discoverGatewayBeacons = vi.fn(async () => []);
 const pickPrimaryTailnetIPv4 = vi.fn(() => "100.64.0.10");
 const sshStop = vi.fn(async () => {});
+const resolveSshConfig = vi.fn(async () => null);
 const startSshPortForward = vi.fn(async () => ({
   parsedTarget: { user: "me", host: "studio", port: 22 },
   localPort: 18789,
@@ -92,8 +93,16 @@ vi.mock("../infra/tailnet.js", () => ({
   pickPrimaryTailnetIPv4: () => pickPrimaryTailnetIPv4(),
 }));
 
-vi.mock("../infra/ssh-tunnel.js", () => ({
-  startSshPortForward: (opts: unknown) => startSshPortForward(opts),
+vi.mock("../infra/ssh-tunnel.js", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("../infra/ssh-tunnel.js")>();
+  return {
+    ...actual,
+    startSshPortForward: (opts: unknown) => startSshPortForward(opts),
+  };
+});
+
+vi.mock("../infra/ssh-config.js", () => ({
+  resolveSshConfig: (opts: unknown) => resolveSshConfig(opts),
 }));
 
 vi.mock("../gateway/probe.js", () => ({
@@ -179,4 +188,122 @@ describe("gateway-status command", () => {
     const targets = parsed.targets as Array<Record<string, unknown>>;
     expect(targets.some((t) => t.kind === "sshTunnel")).toBe(true);
   });
+
+  it("infers SSH target from gateway.remote.url and ssh config", async () => {
+    const runtimeLogs: string[] = [];
+    const runtime = {
+      log: (msg: string) => runtimeLogs.push(msg),
+      error: (_msg: string) => {},
+      exit: (code: number) => {
+        throw new Error(`__exit__:${code}`);
+      },
+    };
+
+    const originalUser = process.env.USER;
+    try {
+      process.env.USER = "steipete";
+      loadConfig.mockReturnValueOnce({
+        gateway: {
+          mode: "remote",
+          remote: { url: "ws://peters-mac-studio-1.sheep-coho.ts.net:18789", token: "rtok" },
+        },
+      });
+      resolveSshConfig.mockResolvedValueOnce({
+        user: "steipete",
+        host: "peters-mac-studio-1.sheep-coho.ts.net",
+        port: 2222,
+        identityFiles: ["/tmp/id_ed25519"],
+      });
+
+      startSshPortForward.mockClear();
+      const { gatewayStatusCommand } = await import("./gateway-status.js");
+      await gatewayStatusCommand(
+        { timeout: "1000", json: true },
+        runtime as unknown as import("../runtime.js").RuntimeEnv,
+      );
+
+      expect(startSshPortForward).toHaveBeenCalledTimes(1);
+      const call = startSshPortForward.mock.calls[0]?.[0] as {
+        target: string;
+        identity?: string;
+      };
+      expect(call.target).toBe("steipete@peters-mac-studio-1.sheep-coho.ts.net:2222");
+      expect(call.identity).toBe("/tmp/id_ed25519");
+    } finally {
+      process.env.USER = originalUser;
+    }
+  });
+
+  it("falls back to host-only when USER is missing and ssh config is unavailable", async () => {
+    const runtimeLogs: string[] = [];
+    const runtime = {
+      log: (msg: string) => runtimeLogs.push(msg),
+      error: (_msg: string) => {},
+      exit: (code: number) => {
+        throw new Error(`__exit__:${code}`);
+      },
+    };
+
+    const originalUser = process.env.USER;
+    try {
+      process.env.USER = "";
+      loadConfig.mockReturnValueOnce({
+        gateway: {
+          mode: "remote",
+          remote: { url: "ws://studio.example:18789", token: "rtok" },
+        },
+      });
+      resolveSshConfig.mockResolvedValueOnce(null);
+
+      startSshPortForward.mockClear();
+      const { gatewayStatusCommand } = await import("./gateway-status.js");
+      await gatewayStatusCommand(
+        { timeout: "1000", json: true },
+        runtime as unknown as import("../runtime.js").RuntimeEnv,
+      );
+
+      const call = startSshPortForward.mock.calls[0]?.[0] as {
+        target: string;
+      };
+      expect(call.target).toBe("studio.example");
+    } finally {
+      process.env.USER = originalUser;
+    }
+  });
+
+  it("keeps explicit SSH identity even when ssh config provides one", async () => {
+    const runtimeLogs: string[] = [];
+    const runtime = {
+      log: (msg: string) => runtimeLogs.push(msg),
+      error: (_msg: string) => {},
+      exit: (code: number) => {
+        throw new Error(`__exit__:${code}`);
+      },
+    };
+
+    loadConfig.mockReturnValueOnce({
+      gateway: {
+        mode: "remote",
+        remote: { url: "ws://studio.example:18789", token: "rtok" },
+      },
+    });
+    resolveSshConfig.mockResolvedValueOnce({
+      user: "me",
+      host: "studio.example",
+      port: 22,
+      identityFiles: ["/tmp/id_from_config"],
+    });
+
+    startSshPortForward.mockClear();
+    const { gatewayStatusCommand } = await import("./gateway-status.js");
+    await gatewayStatusCommand(
+      { timeout: "1000", json: true, sshIdentity: "/tmp/explicit_id" },
+      runtime as unknown as import("../runtime.js").RuntimeEnv,
+    );
+
+    const call = startSshPortForward.mock.calls[0]?.[0] as {
+      identity?: string;
+    };
+    expect(call.identity).toBe("/tmp/explicit_id");
+  });
 });

src/commands/gateway-status.ts

@@ -2,7 +2,8 @@ import { withProgress } from "../cli/progress.js";
 import { loadConfig, resolveGatewayPort } from "../config/config.js";
 import { probeGateway } from "../gateway/probe.js";
 import { discoverGatewayBeacons } from "../infra/bonjour-discovery.js";
-import { startSshPortForward } from "../infra/ssh-tunnel.js";
+import { resolveSshConfig } from "../infra/ssh-config.js";
+import { parseSshTarget, startSshPortForward } from "../infra/ssh-tunnel.js";
 import type { RuntimeEnv } from "../runtime.js";
 import { colorize, isRich, theme } from "../terminal/theme.js";
 
@@ -47,13 +48,25 @@ export async function gatewayStatusCommand(
   });
 
   let sshTarget = sanitizeSshTarget(opts.ssh) ?? sanitizeSshTarget(cfg.gateway?.remote?.sshTarget);
-  const sshIdentity =
+  let sshIdentity =
     sanitizeSshTarget(opts.sshIdentity) ?? sanitizeSshTarget(cfg.gateway?.remote?.sshIdentity);
   const remotePort = resolveGatewayPort(cfg);
 
   let sshTunnelError: string | null = null;
   let sshTunnelStarted = false;
 
+  if (!sshTarget) {
+    sshTarget = inferSshTargetFromRemoteUrl(cfg.gateway?.remote?.url);
+  }
+
+  if (sshTarget) {
+    const resolved = await resolveSshTarget(sshTarget, sshIdentity, overallTimeoutMs);
+    if (resolved) {
+      sshTarget = resolved.target;
+      if (!sshIdentity && resolved.identity) sshIdentity = resolved.identity;
+    }
+  }
+
   const { discovery, probed } = await withProgress(
     {
       label: "Inspecting gateways…",
@@ -314,3 +327,53 @@ export async function gatewayStatusCommand(
 
   if (!ok) runtime.exit(1);
 }
+
+function inferSshTargetFromRemoteUrl(rawUrl?: string | null): string | null {
+  if (typeof rawUrl !== "string") return null;
+  const trimmed = rawUrl.trim();
+  if (!trimmed) return null;
+  let host: string | null = null;
+  try {
+    host = new URL(trimmed).hostname || null;
+  } catch {
+    return null;
+  }
+  if (!host) return null;
+  const user = process.env.USER?.trim() || "";
+  return user ? `${user}@${host}` : host;
+}
+
+function buildSshTarget(input: { user?: string; host?: string; port?: number }): string | null {
+  const host = input.host?.trim() ?? "";
+  if (!host) return null;
+  const user = input.user?.trim() ?? "";
+  const base = user ? `${user}@${host}` : host;
+  const port = input.port ?? 22;
+  if (port && port !== 22) return `${base}:${port}`;
+  return base;
+}
+
+async function resolveSshTarget(
+  rawTarget: string,
+  identity: string | null,
+  overallTimeoutMs: number,
+): Promise<{ target: string; identity?: string } | null> {
+  const parsed = parseSshTarget(rawTarget);
+  if (!parsed) return null;
+  const config = await resolveSshConfig(parsed, {
+    identity: identity ?? undefined,
+    timeoutMs: Math.min(800, overallTimeoutMs),
+  });
+  if (!config) return { target: rawTarget, identity: identity ?? undefined };
+  const target = buildSshTarget({
+    user: config.user ?? parsed.user,
+    host: config.host ?? parsed.host,
+    port: config.port ?? parsed.port,
+  });
+  if (!target) return { target: rawTarget, identity: identity ?? undefined };
+  const identityFile =
+    identity ??
+    config.identityFiles.find((entry) => entry.trim().length > 0)?.trim() ??
+    undefined;
+  return { target, identity: identityFile };
+}