upgrade check.js to handle unpacked notion installations

package.json

@@ -1,6 +1,6 @@
 {
   "name": "notion-enhancer",
-  "version": "0.10.1",
+  "version": "0.10.2-wip",
   "description": "an enhancer/customiser for the all-in-one productivity workspace notion.so",
   "main": "index.js",
   "bin": {

pkg/check.js

@@ -9,29 +9,39 @@
 const fs = require('fs-extra'),
   path = require('path'),
   helpers = require('./helpers.js'),
-  { version } = require('../package.json');
+  { version } = require('../package.json'),
+  pathExists = (filepath) => fs.pathExists(path.resolve(filepath));
 
-// handle pre-existing installations: app.asar modded? with which enhancer version?
 module.exports = async function () {
-  const version_path = path.resolve(
-      `${helpers.__notion}/app/ENHANCER_VERSION.txt`
-    ),
-    installed_version = (await fs.pathExists(version_path))
-      ? await fs.readFile(version_path, 'utf8')
-      : '?.?.?';
-  if (await fs.pathExists(path.resolve(`${helpers.__notion}/app.asar`))) {
+  const version_path = `${helpers.__notion}/app/ENHANCER_VERSION.txt`;
+  if (!(await pathExists(version_path))) {
     return {
       msg: `notion-enhancer has not been applied.`,
       code: 0,
     };
   }
+  const installed_version = await fs.readFile(version_path, 'utf8'),
+    packed = await pathExists(`${helpers.__notion}/app.asar`),
+    backup = packed
+      ? (await pathExists(`${helpers.__notion}/app.asar.bak`))
+        ? `${helpers.__notion}/app.asar.bak`
+        : undefined
+      : (await pathExists(`${helpers.__notion}/app.bak`))
+      ? `${helpers.__notion}/app.bak`
+      : undefined;
   return installed_version === version
     ? {
         msg: `notion-enhancer v${version} applied.`,
+        version: installed_version,
+        packed,
+        backup,
         code: 1,
       }
     : {
         msg: `notion-enhancer v${installed_version} found applied != v${version} package.`,
+        version: installed_version,
+        packed,
+        backup,
         code: 2,
       };
 };

pkg/helpers.js

@@ -94,6 +94,9 @@ const is_wsl =
     return folder;
   })();
 
+// safely backup & transform either an app folder or an app.asar file into a folder
+function enhanceableApp() {}
+
 // transform a wsl filepath to its relative windows filepath if necessary.
 function realpath(hack_path) {
   if (!is_wsl) return hack_path.replace(/\\/g, '/');