From 01b52624a02913830de70af5b47c551bfdcbf13b Mon Sep 17 00:00:00 2001
From: "Michael B. Gale" <mbg@github.com>
Date: Mon, 9 Mar 2026 19:27:49 +0000
Subject: [PATCH] Move out auth config from `Credential` type

---
 src/start-proxy/types.ts | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/src/start-proxy/types.ts b/src/start-proxy/types.ts
index 3d28b98d4..a118b7e87 100644
--- a/src/start-proxy/types.ts
+++ b/src/start-proxy/types.ts
@@ -5,18 +5,38 @@
  */
 export type RawCredential = Partial<Credential>;
 
+/** Usernames may be present for both authentication with tokens or passwords. */
+export type Username = {
+  /** The username needed to authenticate to the package registry, if any. */
+  username?: string;
+};
+
+/**
+ * Fields expected for authentication based on a username and password.
+ * Both username and password are optional.
+ */
+export type UsernamePassword = {
+  /** The password needed to authenticate to the package registry, if any. */
+  password?: string;
+} & Username;
+
+/**
+ * Fields expected for token-based authentication.
+ * Both username and token are optional.
+ */
+export type Token = {
+  /** The token needed to authenticate to the package registry, if any. */
+  token?: string;
+} & Username;
+
+/** All authentication-related fields. */
+export type AuthConfig = UsernamePassword & Token;
+
 /**
  * A package registry configuration includes identifying information as well as
  * authentication credentials.
  */
-export type Credential = {
-  /** The username needed to authenticate to the package registry, if any. */
-  username?: string;
-  /** The password needed to authenticate to the package registry, if any. */
-  password?: string;
-  /** The token needed to authenticate to the package registry, if any. */
-  token?: string;
-} & Registry;
+export type Credential = AuthConfig & Registry;
 
 /** A package registry is identified by its type and address. */
 export type Registry = {