🐛 修复 0.16 升级到 1.x 时 IndexedDB 数据不迁移导致脚本丢失

package.json

@@ -97,6 +97,7 @@
     "eslint-plugin-react": "^7.37.5",
     "eslint-plugin-react-hooks": "^7.1.1",
     "eslint-plugin-userscripts": "^0.5.6",
+    "fake-indexeddb": "^6.2.5",
     "globals": "^16.5.0",
     "happy-dom": "^20.10.2",
     "husky": "^9.1.7",

src/app/migrate.test.ts

@@ -0,0 +1,127 @@
+import Dexie from "dexie";
+import { IDBFactory, IDBKeyRange } from "fake-indexeddb";
+import { describe, it, expect, beforeEach, vi } from "vitest";
+import type migrateType from "./migrate";
+
+// 0.16.x（MV2）留在 IndexedDB「ScriptCat」库里的最终表结构，各表取 0.16.15 中最后一次声明的定义。
+// 0.16.7 起 0.16 自己声明了 db.version(18)（防降级，见 faae3b83），此后的用户库已是 18。
+const MV2_STORES = {
+  scripts:
+    "++id,&uuid,name,namespace,author,originDomain,subscribeUrl,type,sort,status,runStatus,createtime,updatetime,checktime",
+  logger: "++id,level,createtime",
+  permission: "++id,scriptId,[scriptId+permission+permissionValue],createtime,updatetime",
+  value: "++id,[scriptId+key],[storageName+key]",
+  resource: "++id,&url,content,type,createtime,updatetime",
+  resourceLink: "++id,url,scriptId,createtime",
+  export: "++id,&scriptId",
+  subscribe: "++id,&url,createtime,updatetime,checktime",
+  sync: "++id,&key,[user+device+type],createtime",
+};
+
+const MV2_UUID = "0f6b5f3e-2a4b-4c1d-9e8f-1a2b3c4d5e6f";
+
+async function seedMV2Database(version: number) {
+  const legacy = new Dexie("ScriptCat");
+  legacy.version(version).stores(MV2_STORES);
+  await legacy.open();
+  const scriptId = await legacy.table("scripts").add({
+    uuid: MV2_UUID,
+    name: "mv2 script",
+    namespace: "mv2",
+    origin: "https://greasyfork.org/scripts/1-mv2.user.js",
+    originDomain: "greasyfork.org",
+    type: 1,
+    status: 1,
+    sort: 0,
+    runStatus: "complete",
+    metadata: { match: ["https://example.com/*"] },
+    code: "// ==UserScript==\n// @name mv2 script\n// ==/UserScript==\nconsole.log(1);",
+    createtime: 1,
+    updatetime: 1,
+    checktime: 1,
+  });
+  await legacy.table("value").add({ scriptId, storageName: "", key: "count", value: 3, createtime: 1 });
+  legacy.close();
+}
+
+// 模拟扩展一次启动：与 src/service_worker.ts 相同的调用顺序
+async function startExtension() {
+  const mod = await import("./migrate.js");
+  const migrate = mod.default as unknown as typeof migrateType;
+  migrate();
+  await mod.migrateChromeStorage();
+}
+
+async function readMigrated() {
+  const { ScriptDAO, ScriptCodeDAO } = await import("./repo/scripts.js");
+  const { ValueDAO } = await import("./repo/value.js");
+  const scripts = await new ScriptDAO().all();
+  const code = await new ScriptCodeDAO().get(MV2_UUID);
+  const value = await new ValueDAO().get(MV2_UUID);
+  return {
+    names: scripts.map((s) => s.name),
+    origin: scripts[0]?.origin,
+    code: code?.code,
+    values: value?.data,
+  };
+}
+
+beforeEach(async () => {
+  // 每个用例一个全新的 IndexedDB 与模块实例（dao.ts 的 Dexie 单例、Repo 缓存都在模块级）。
+  // dexie 是外部依赖，不随 resetModules 重新求值，其 IndexedDB 来源要直接替换。
+  Dexie.dependencies.indexedDB = new IDBFactory();
+  Dexie.dependencies.IDBKeyRange = IDBKeyRange;
+  vi.resetModules();
+  await chrome.storage.local.clear();
+  // 迁移成功后会重载扩展，mock 中没有 runtime.reload
+  chrome.runtime.reload = vi.fn();
+});
+
+describe("0.16（MV2 IndexedDB）数据迁移到 chrome.storage", () => {
+  it("0.16.7+ 留下的 v18 库：首次启动即迁移脚本、代码与 GM 值", async () => {
+    await seedMV2Database(18);
+
+    await startExtension();
+
+    expect(await readMigrated()).toEqual({
+      names: ["mv2 script"],
+      origin: "https://greasyfork.org/scripts/1-mv2.user.js",
+      code: expect.stringContaining("console.log(1);"),
+      values: { count: 3 },
+    });
+  });
+
+  it("0.16.6 及更早的 v17 库同样迁移，且只迁移一份", async () => {
+    await seedMV2Database(17);
+
+    await startExtension();
+
+    expect(await readMigrated()).toEqual({
+      names: ["mv2 script"],
+      origin: "https://greasyfork.org/scripts/1-mv2.user.js",
+      code: expect.stringContaining("console.log(1);"),
+      values: { count: 3 },
+    });
+  });
+
+  it("chrome.storage 已有脚本（早已迁移过的用户）时不用 IndexedDB 里的旧副本覆盖", async () => {
+    await seedMV2Database(18);
+    const { ScriptDAO } = await import("./repo/scripts.js");
+    await new ScriptDAO().save({
+      uuid: "c1a2b3c4-d5e6-4f70-8a9b-0c1d2e3f4a5b",
+      name: "current script",
+      namespace: "current",
+      type: 1,
+      status: 1,
+      sort: 0,
+      runStatus: "complete",
+      metadata: {},
+      createtime: 2,
+      checktime: 2,
+    });
+
+    await startExtension();
+
+    expect((await readMigrated()).names).toEqual(["current script"]);
+  });
+});