feat: surface repo root in runtime prompt

src/agents/system-prompt-params.test.ts

@@ -0,0 +1,106 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+
+import { describe, expect, it } from "vitest";
+
+import type { ClawdbotConfig } from "../config/config.js";
+import { buildSystemPromptParams } from "./system-prompt-params.js";
+
+async function makeTempDir(label: string): Promise<string> {
+  return fs.mkdtemp(path.join(os.tmpdir(), `clawdbot-${label}-`));
+}
+
+async function makeRepoRoot(root: string): Promise<void> {
+  await fs.mkdir(path.join(root, ".git"), { recursive: true });
+}
+
+function buildParams(params: { config?: ClawdbotConfig; workspaceDir?: string; cwd?: string }) {
+  return buildSystemPromptParams({
+    config: params.config,
+    workspaceDir: params.workspaceDir,
+    cwd: params.cwd,
+    runtime: {
+      host: "host",
+      os: "os",
+      arch: "arch",
+      node: "node",
+      model: "model",
+    },
+  });
+}
+
+describe("buildSystemPromptParams repo root", () => {
+  it("detects repo root from workspaceDir", async () => {
+    const temp = await makeTempDir("workspace");
+    const repoRoot = path.join(temp, "repo");
+    const workspaceDir = path.join(repoRoot, "nested", "workspace");
+    await fs.mkdir(workspaceDir, { recursive: true });
+    await makeRepoRoot(repoRoot);
+
+    const { runtimeInfo } = buildParams({ workspaceDir });
+
+    expect(runtimeInfo.repoRoot).toBe(repoRoot);
+  });
+
+  it("falls back to cwd when workspaceDir has no repo", async () => {
+    const temp = await makeTempDir("cwd");
+    const repoRoot = path.join(temp, "repo");
+    const workspaceDir = path.join(temp, "workspace");
+    await fs.mkdir(workspaceDir, { recursive: true });
+    await makeRepoRoot(repoRoot);
+
+    const { runtimeInfo } = buildParams({ workspaceDir, cwd: repoRoot });
+
+    expect(runtimeInfo.repoRoot).toBe(repoRoot);
+  });
+
+  it("uses configured repoRoot when valid", async () => {
+    const temp = await makeTempDir("config");
+    const repoRoot = path.join(temp, "config-root");
+    const workspaceDir = path.join(temp, "workspace");
+    await fs.mkdir(repoRoot, { recursive: true });
+    await fs.mkdir(workspaceDir, { recursive: true });
+    await makeRepoRoot(workspaceDir);
+
+    const config: ClawdbotConfig = {
+      agents: {
+        defaults: {
+          repoRoot,
+        },
+      },
+    };
+
+    const { runtimeInfo } = buildParams({ config, workspaceDir });
+
+    expect(runtimeInfo.repoRoot).toBe(repoRoot);
+  });
+
+  it("ignores invalid repoRoot config and auto-detects", async () => {
+    const temp = await makeTempDir("invalid");
+    const repoRoot = path.join(temp, "repo");
+    const workspaceDir = path.join(repoRoot, "workspace");
+    await fs.mkdir(workspaceDir, { recursive: true });
+    await makeRepoRoot(repoRoot);
+
+    const config: ClawdbotConfig = {
+      agents: {
+        defaults: {
+          repoRoot: path.join(temp, "missing"),
+        },
+      },
+    };
+
+    const { runtimeInfo } = buildParams({ config, workspaceDir });
+
+    expect(runtimeInfo.repoRoot).toBe(repoRoot);
+  });
+
+  it("returns undefined when no repo is found", async () => {
+    const workspaceDir = await makeTempDir("norepo");
+
+    const { runtimeInfo } = buildParams({ workspaceDir });
+
+    expect(runtimeInfo.repoRoot).toBeUndefined();
+  });
+});