Handle error while creating app directory

Author: max-niederman

injectors/main.js

@@ -4,11 +4,11 @@
  * https://powercord.dev/porkord-license
  */
 
-const rmdirRf = require('../src/fake_node_modules/powercord/util/rmdirRf');
-const { existsSync } = require('fs');
-const { mkdir, writeFile } = require('fs').promises;
-const { join, sep } = require('path');
-const { AnsiEscapes } = require('./log');
+const rmdirRf = require("../src/fake_node_modules/powercord/util/rmdirRf");
+const { existsSync } = require("fs");
+const { mkdir, writeFile } = require("fs").promises;
+const { join, sep } = require("path");
+const { AnsiEscapes } = require("./log");
 
 exports.inject = async ({ getAppDir }) => {
   const appDir = await getAppDir();
@@ -17,25 +17,47 @@ exports.inject = async ({ getAppDir }) => {
      * @todo: verify if there is nothing in discord_desktop_core as well
      * @todo: prompt to automatically uninject and continue
      */
-    console.log('Looks like you already have an injector in place. Try unplugging (`npm run unplug`) and try again.', '\n');
-    console.log(`${AnsiEscapes.YELLOW}NOTE:${AnsiEscapes.RESET} If you already have BetterDiscord or another client mod injected, Powercord cannot run along with it!`);
-    console.log('Read our FAQ for more details: https://powercord.dev/faq#bd-and-pc');
+    console.log(
+      "Looks like you already have an injector in place. Try unplugging (`npm run unplug`) and try again.",
+      "\n"
+    );
+    console.log(
+      `${AnsiEscapes.YELLOW}NOTE:${AnsiEscapes.RESET} If you already have BetterDiscord or another client mod injected, Powercord cannot run along with it!`
+    );
+    console.log(
+      "Read our FAQ for more details: https://powercord.dev/faq#bd-and-pc"
+    );
+    return false;
+  }
+
+  try {
+    await mkdir(appDir);
+  } catch (err) {
+    console.log(
+      "It appears that your Discord Canary installation is broken. Try reinstalling and run again.",
+      "\n"
+    );
+    console.log(
+      `${AnsiEscapes.YELLOW}NOTE:${AnsiEscapes.RESET} This issue has been known to happen using non-official Discord Canary installs. Try using the official package if you're not already.`
+    );
     return false;
   }
 
-  await mkdir(appDir);
   await Promise.all([
     writeFile(
-      join(appDir, 'index.js'),
-      `require(\`${__dirname.replace(RegExp(sep.repeat(2), 'g'), '/')}/../src/patcher.js\`)`
+      join(appDir, "index.js"),
+      `require(\`${__dirname.replace(
+        RegExp(sep.repeat(2), "g"),
+        "/"
+      )}/../src/patcher.js\`)`
     ),
     writeFile(
-      join(appDir, 'package.json'),
+      join(appDir, "package.json"),
       JSON.stringify({
-        main: 'index.js',
-        name: 'discord'
+        main: "index.js",
+        name: "discord",
       })
-    )
+    ),
   ]);
 
   return true;
@@ -45,7 +67,9 @@ exports.uninject = async ({ getAppDir }) => {
   const appDir = await getAppDir();
 
   if (!existsSync(appDir)) {
-    console.log('There is nothing to unplug. You are already running Discord without mods.');
+    console.log(
+      "There is nothing to unplug. You are already running Discord without mods."
+    );
     return false;
   }