Replace global state usages of ExtensionLoader with DI

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

src/renderer/components/+extensions/read-file-notify/read-file-notify.ts

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2021 OpenLens Authors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+import fse from "fs-extra";
+import { getMessageFromError } from "../get-message-from-error/get-message-from-error";
+import logger from "../../../../main/logger";
+import { Notifications } from "../../notifications";
+
+export const readFileNotify = async (filePath: string, showError = true): Promise<Buffer | null> => {
+  try {
+    return await fse.readFile(filePath);
+  } catch (error) {
+    if (showError) {
+      const message = getMessageFromError(error);
+
+      logger.info(`[EXTENSION-INSTALL]: preloading ${filePath} has failed: ${message}`, { error });
+      Notifications.error(`Error while reading "${filePath}": ${message}`);
+    }
+  }
+
+  return null;
+};