Make onboarding reruns preserve existing config

Co-Authored-By: Paperclip <noreply@paperclip.ing>

cli/src/__tests__/onboard.test.ts

@@ -0,0 +1,105 @@
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import { afterEach, beforeEach, describe, expect, it } from "vitest";
+import { onboard } from "../commands/onboard.js";
+import type { PaperclipConfig } from "../config/schema.js";
+
+const ORIGINAL_ENV = { ...process.env };
+
+function createExistingConfigFixture() {
+  const root = fs.mkdtempSync(path.join(os.tmpdir(), "paperclip-onboard-"));
+  const runtimeRoot = path.join(root, "runtime");
+  const configPath = path.join(root, ".paperclip", "config.json");
+  const config: PaperclipConfig = {
+    $meta: {
+      version: 1,
+      updatedAt: "2026-03-29T00:00:00.000Z",
+      source: "configure",
+    },
+    database: {
+      mode: "embedded-postgres",
+      embeddedPostgresDataDir: path.join(runtimeRoot, "db"),
+      embeddedPostgresPort: 54329,
+      backup: {
+        enabled: true,
+        intervalMinutes: 60,
+        retentionDays: 30,
+        dir: path.join(runtimeRoot, "backups"),
+      },
+    },
+    logging: {
+      mode: "file",
+      logDir: path.join(runtimeRoot, "logs"),
+    },
+    server: {
+      deploymentMode: "local_trusted",
+      exposure: "private",
+      host: "127.0.0.1",
+      port: 3100,
+      allowedHostnames: [],
+      serveUi: true,
+    },
+    auth: {
+      baseUrlMode: "auto",
+      disableSignUp: false,
+    },
+    storage: {
+      provider: "local_disk",
+      localDisk: {
+        baseDir: path.join(runtimeRoot, "storage"),
+      },
+      s3: {
+        bucket: "paperclip",
+        region: "us-east-1",
+        prefix: "",
+        forcePathStyle: false,
+      },
+    },
+    secrets: {
+      provider: "local_encrypted",
+      strictMode: false,
+      localEncrypted: {
+        keyFilePath: path.join(runtimeRoot, "secrets", "master.key"),
+      },
+    },
+  };
+
+  fs.mkdirSync(path.dirname(configPath), { recursive: true });
+  fs.writeFileSync(configPath, `${JSON.stringify(config, null, 2)}\n`, { mode: 0o600 });
+
+  return { configPath, configText: fs.readFileSync(configPath, "utf8") };
+}
+
+describe("onboard", () => {
+  beforeEach(() => {
+    process.env = { ...ORIGINAL_ENV };
+    delete process.env.PAPERCLIP_AGENT_JWT_SECRET;
+    delete process.env.PAPERCLIP_SECRETS_MASTER_KEY;
+    delete process.env.PAPERCLIP_SECRETS_MASTER_KEY_FILE;
+  });
+
+  afterEach(() => {
+    process.env = { ...ORIGINAL_ENV };
+  });
+
+  it("preserves an existing config when rerun without flags", async () => {
+    const fixture = createExistingConfigFixture();
+
+    await onboard({ config: fixture.configPath });
+
+    expect(fs.readFileSync(fixture.configPath, "utf8")).toBe(fixture.configText);
+    expect(fs.existsSync(`${fixture.configPath}.backup`)).toBe(false);
+    expect(fs.existsSync(path.join(path.dirname(fixture.configPath), ".env"))).toBe(true);
+  });
+
+  it("preserves an existing config when rerun with --yes", async () => {
+    const fixture = createExistingConfigFixture();
+
+    await onboard({ config: fixture.configPath, yes: true, invokedByRun: true });
+
+    expect(fs.readFileSync(fixture.configPath, "utf8")).toBe(fixture.configText);
+    expect(fs.existsSync(`${fixture.configPath}.backup`)).toBe(false);
+    expect(fs.existsSync(path.join(path.dirname(fixture.configPath), ".env"))).toBe(true);
+  });
+});