updated

src/git.js

@@ -6,12 +6,18 @@
 import { run } from './exec.js';
 
 export function gitAuthEnv(token, baseEnv = process.env) {
+  // Gitea's git-over-HTTP backend (unlike its REST API) does not accept the
+  // "Authorization: token <t>" scheme — it wants HTTP Basic auth, username
+  // arbitrary, password/token as the credential. "oauth2" as the username
+  // is an arbitrary placeholder (matches the convention other git hosts
+  // use for token auth) — Gitea only checks the token in the password slot.
+  const basic = Buffer.from(`oauth2:${token}`).toString('base64');
   return {
     ...baseEnv,
     GIT_TERMINAL_PROMPT: '0',
     GIT_CONFIG_COUNT: '1',
     GIT_CONFIG_KEY_0: 'http.extraHeader',
-    GIT_CONFIG_VALUE_0: `Authorization: token ${token}`,
+    GIT_CONFIG_VALUE_0: `Authorization: Basic ${basic}`,
   };
 }