fix: load global .env fallback

src/infra/dotenv.test.ts

@@ -0,0 +1,80 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+
+import { describe, expect, it } from "vitest";
+
+import { loadDotEnv } from "./dotenv.js";
+
+async function writeEnvFile(filePath: string, contents: string) {
+  await fs.mkdir(path.dirname(filePath), { recursive: true });
+  await fs.writeFile(filePath, contents, "utf8");
+}
+
+describe("loadDotEnv", () => {
+  it("loads ~/.clawdbot/.env as fallback without overriding CWD .env", async () => {
+    const prevEnv = { ...process.env };
+    const prevCwd = process.cwd();
+
+    const base = await fs.mkdtemp(
+      path.join(os.tmpdir(), "clawdbot-dotenv-test-"),
+    );
+    const cwdDir = path.join(base, "cwd");
+    const stateDir = path.join(base, "state");
+
+    process.env.CLAWDBOT_STATE_DIR = stateDir;
+
+    await writeEnvFile(path.join(stateDir, ".env"), "FOO=from-global\nBAR=1\n");
+    await writeEnvFile(path.join(cwdDir, ".env"), "FOO=from-cwd\n");
+
+    process.chdir(cwdDir);
+    delete process.env.FOO;
+    delete process.env.BAR;
+
+    loadDotEnv({ quiet: true });
+
+    expect(process.env.FOO).toBe("from-cwd");
+    expect(process.env.BAR).toBe("1");
+
+    process.chdir(prevCwd);
+    for (const key of Object.keys(process.env)) {
+      if (!(key in prevEnv)) delete process.env[key];
+    }
+    for (const [key, value] of Object.entries(prevEnv)) {
+      if (value === undefined) delete process.env[key];
+      else process.env[key] = value;
+    }
+  });
+
+  it("does not override an already-set env var from the shell", async () => {
+    const prevEnv = { ...process.env };
+    const prevCwd = process.cwd();
+
+    const base = await fs.mkdtemp(
+      path.join(os.tmpdir(), "clawdbot-dotenv-test-"),
+    );
+    const cwdDir = path.join(base, "cwd");
+    const stateDir = path.join(base, "state");
+
+    process.env.CLAWDBOT_STATE_DIR = stateDir;
+    process.env.FOO = "from-shell";
+
+    await writeEnvFile(path.join(stateDir, ".env"), "FOO=from-global\n");
+    await writeEnvFile(path.join(cwdDir, ".env"), "FOO=from-cwd\n");
+
+    process.chdir(cwdDir);
+
+    loadDotEnv({ quiet: true });
+
+    expect(process.env.FOO).toBe("from-shell");
+
+    process.chdir(prevCwd);
+    for (const key of Object.keys(process.env)) {
+      if (!(key in prevEnv)) delete process.env[key];
+    }
+    for (const [key, value] of Object.entries(prevEnv)) {
+      if (value === undefined) delete process.env[key];
+      else process.env[key] = value;
+    }
+  });
+});