From 4c964f35c890562d83af322b50c119194411ffed Mon Sep 17 00:00:00 2001
From: Dozie <125983150+doziedotdev@users.noreply.github.com>
Date: Thu, 16 Apr 2026 19:32:07 -0400
Subject: [PATCH] fix(auth): use platform-aware default Chrome profile path

The hardcoded `~/Library/Application Support/Google/Chrome` default
assumed macOS and caused `node src/auth-interactive.mjs` to fail with
"Chrome profile not found" for every Linux and Windows user whose
`GEMINI_WEB_CHROME_USER_DATA` was not set.

Select the default based on `process.platform`:

- darwin  -> `~/Library/Application Support/Google/Chrome`
- linux   -> `~/.config/google-chrome`
- win32   -> `%LOCALAPPDATA%/Google/Chrome/User Data`
- other   -> linux default (safe fallback)

The `GEMINI_WEB_CHROME_USER_DATA` env var still overrides everything,
so existing setups are unaffected.
---
 src/auth-interactive.mjs | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/auth-interactive.mjs b/src/auth-interactive.mjs
index 4eabe52..d04ca83 100644
--- a/src/auth-interactive.mjs
+++ b/src/auth-interactive.mjs
@@ -3,12 +3,28 @@ import { resolve, dirname } from 'node:path';
 import { writeFileSync, mkdtempSync, cpSync, rmSync, existsSync, mkdirSync } from 'node:fs';
 import { tmpdir } from 'node:os';
 
+function defaultChromeUserData() {
+  const home = process.env.HOME || '';
+  switch (process.platform) {
+    case 'darwin':
+      return resolve(home, 'Library/Application Support/Google/Chrome');
+    case 'linux':
+      return resolve(home, '.config/google-chrome');
+    case 'win32':
+      return resolve(
+        process.env.LOCALAPPDATA || resolve(home, 'AppData/Local'),
+        'Google/Chrome/User Data',
+      );
+    default:
+      return resolve(home, '.config/google-chrome');
+  }
+}
+
 const AUTH_PATH =
   process.env.GEMINI_WEB_AUTH_PATH ||
   resolve(process.env.HOME, '.gemini-cli-web', 'auth.json');
 const CHROME_USER_DATA =
-  process.env.GEMINI_WEB_CHROME_USER_DATA ||
-  resolve(process.env.HOME, 'Library/Application Support/Google/Chrome');
+  process.env.GEMINI_WEB_CHROME_USER_DATA || defaultChromeUserData();
 
 function save(psid, psidts) {
   mkdirSync(dirname(AUTH_PATH), { recursive: true });