fix: sync remote ssh targets

src/infra/ssh-config.test.ts

@@ -0,0 +1,81 @@
+import { spawn } from "node:child_process";
+import { EventEmitter } from "node:events";
+import { describe, expect, it, vi } from "vitest";
+
+vi.mock("node:child_process", () => {
+  const spawn = vi.fn(() => {
+    const child = new EventEmitter() as EventEmitter & {
+      stdout?: EventEmitter & { setEncoding?: (enc: string) => void };
+      kill?: (signal?: string) => void;
+    };
+    const stdout = new EventEmitter() as EventEmitter & {
+      setEncoding?: (enc: string) => void;
+    };
+    stdout.setEncoding = vi.fn();
+    child.stdout = stdout;
+    child.kill = vi.fn();
+    process.nextTick(() => {
+      stdout.emit(
+        "data",
+        [
+          "user steipete",
+          "hostname peters-mac-studio-1.sheep-coho.ts.net",
+          "port 2222",
+          "identityfile none",
+          "identityfile /tmp/id_ed25519",
+          "",
+        ].join("\n"),
+      );
+      child.emit("exit", 0);
+    });
+    return child;
+  });
+  return { spawn };
+});
+
+const spawnMock = vi.mocked(spawn);
+
+describe("ssh-config", () => {
+  it("parses ssh -G output", async () => {
+    const { parseSshConfigOutput } = await import("./ssh-config.js");
+    const parsed = parseSshConfigOutput(
+      "user bob\nhostname example.com\nport 2222\nidentityfile none\nidentityfile /tmp/id\n",
+    );
+    expect(parsed.user).toBe("bob");
+    expect(parsed.host).toBe("example.com");
+    expect(parsed.port).toBe(2222);
+    expect(parsed.identityFiles).toEqual(["/tmp/id"]);
+  });
+
+  it("resolves ssh config via ssh -G", async () => {
+    const { resolveSshConfig } = await import("./ssh-config.js");
+    const config = await resolveSshConfig({ user: "me", host: "alias", port: 22 });
+    expect(config?.user).toBe("steipete");
+    expect(config?.host).toBe("peters-mac-studio-1.sheep-coho.ts.net");
+    expect(config?.port).toBe(2222);
+    expect(config?.identityFiles).toEqual(["/tmp/id_ed25519"]);
+  });
+
+  it("returns null when ssh -G fails", async () => {
+    spawnMock.mockImplementationOnce(() => {
+      const child = new EventEmitter() as EventEmitter & {
+        stdout?: EventEmitter & { setEncoding?: (enc: string) => void };
+        kill?: (signal?: string) => void;
+      };
+      const stdout = new EventEmitter() as EventEmitter & {
+        setEncoding?: (enc: string) => void;
+      };
+      stdout.setEncoding = vi.fn();
+      child.stdout = stdout;
+      child.kill = vi.fn();
+      process.nextTick(() => {
+        child.emit("exit", 1);
+      });
+      return child;
+    });
+
+    const { resolveSshConfig } = await import("./ssh-config.js");
+    const config = await resolveSshConfig({ user: "me", host: "bad-host", port: 22 });
+    expect(config).toBeNull();
+  });
+});