Fix issues with configuration directories

- Move the old data directory if possible.
- Fix extension path to not use a hard-coded path and instead use the
  data directory.
- Create every part of the path during startup.
- Create each path when a connection is made as well in case they are
  deleted while the server is running.
- Create every part of the path before saving settings or writing a file
  using the resource endpoint.

packages/vscode/src/fill/product.ts

@@ -1,26 +1,37 @@
+import { InitData } from "@coder/protocol";
 import { IProductConfiguration } from "vs/platform/product/node/product";
 
-const product = {
-	nameShort: "code-server",
-	nameLong: "code-server",
-	dataFolderName: ".code-server",
-	extensionsGallery: {
+class Product implements IProductConfiguration {
+	public nameShort = "code-server";
+	public nameLong = "code-server";
+
+	private _dataFolderName: string | undefined;
+	public get dataFolderName(): string {
+		if (!this._dataFolderName) {
+			throw new Error("trying to access data folder name before it has been set");
+		}
+
+		return this._dataFolderName;
+	}
+
+	public extensionsGallery = {
 		serviceUrl: global && global.process && global.process.env.SERVICE_URL
 			|| process.env.SERVICE_URL
 			|| "https://v1.extapi.coder.com",
-	},
-	extensionExecutionEnvironments: {
+	};
+
+	public extensionExecutionEnvironments = {
 		"wayou.vscode-todo-highlight": "worker",
 		"vscodevim.vim": "worker",
 		"coenraads.bracket-pair-colorizer": "worker",
-	},
-	fetchUrl: "",
-} as IProductConfiguration;
+	};
 
-if (process.env['VSCODE_DEV']) {
-	product.nameShort += ' Dev';
-	product.nameLong += ' Dev';
-	product.dataFolderName += '-dev';
+	public fetchUrl = "";
+
+	public initialize(_data: InitData): void {
+		// Nothing at the moment; dataFolderName isn't used since we override the
+		// extension path.
+	}
 }
 
-export default product;
+export default new Product();