test: share temp home env harness

src/test-utils/temp-home.ts

@@ -0,0 +1,43 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { captureEnv } from "./env.js";
+
+const HOME_ENV_KEYS = [
+  "HOME",
+  "USERPROFILE",
+  "HOMEDRIVE",
+  "HOMEPATH",
+  "OPENCLAW_STATE_DIR",
+] as const;
+
+export type TempHomeEnv = {
+  home: string;
+  restore: () => Promise<void>;
+};
+
+export async function createTempHomeEnv(prefix: string): Promise<TempHomeEnv> {
+  const home = await fs.mkdtemp(path.join(os.tmpdir(), prefix));
+  await fs.mkdir(path.join(home, ".openclaw"), { recursive: true });
+
+  const snapshot = captureEnv([...HOME_ENV_KEYS]);
+  process.env.HOME = home;
+  process.env.USERPROFILE = home;
+  process.env.OPENCLAW_STATE_DIR = path.join(home, ".openclaw");
+
+  if (process.platform === "win32") {
+    const match = home.match(/^([A-Za-z]:)(.*)$/);
+    if (match) {
+      process.env.HOMEDRIVE = match[1];
+      process.env.HOMEPATH = match[2] || "\\";
+    }
+  }
+
+  return {
+    home,
+    restore: async () => {
+      snapshot.restore();
+      await fs.rm(home, { recursive: true, force: true });
+    },
+  };
+}