add user-store file name migration (#733)

Co-authored-by: Sebastian Malton <smalton@mirantis.com>

src/common/user-store.ts

@@ -10,6 +10,7 @@ import { kubeConfigDefaultPath, loadConfig } from "./kube-helpers";
 import { appEventBus } from "./event-bus";
 import logger from "../main/logger";
 import path from "path";
+import { fileNameMigration } from "../migrations/user-store";
 
 export interface UserStoreModel {
   kubeConfigPath: string;
@@ -37,7 +38,7 @@ export class UserStore extends BaseStore<UserStoreModel> {
 
   private constructor() {
     super({
-      // configName: "lens-user-store", // todo: migrate from default "config.json"
+      configName: "lens-user-store",
       migrations,
     });
 
@@ -85,6 +86,16 @@ export class UserStore extends BaseStore<UserStoreModel> {
     }
   }
 
+  async load(): Promise<void> {
+    /**
+     * This has to be here before the call to `new Config` in `super.load()`
+     * as we have to make sure that file is in the expected place for that call
+     */
+    await fileNameMigration();
+
+    return super.load();
+  }
+
   get isNewVersion() {
     return semver.gt(getAppVersion(), this.lastSeenAppVersion);
   }

src/migrations/user-store/file-name-migration.ts

+import fse from "fs-extra";
+import { app, remote } from "electron";
+import path from "path";
+
+export async function fileNameMigration() {
+  const userDataPath = (app || remote.app).getPath("userData");
+  const configJsonPath = path.join(userDataPath, "config.json");
+  const lensUserStoreJsonPath = path.join(userDataPath, "lens-user-store.json");
+
+  try {
+    await fse.move(configJsonPath, lensUserStoreJsonPath);
+  } catch (error) {
+    if (error.code === "ENOENT" && error.path === configJsonPath) { // (No such file or directory)
+      return; // file already moved
+    } else if (error.message === "dest already exists.") {
+      await fse.remove(configJsonPath);
+    } else {
+      // pass other errors along
+      throw error;
+    }
+  }
+}

src/migrations/user-store/index.ts

 // User store migrations
 
 import version210Beta4 from "./2.1.0-beta.4";
+import { fileNameMigration } from "./file-name-migration";
+
+export {
+  fileNameMigration
+};
 
 export default {
   ...version210Beta4,