feat: use get-github-auth-token instead of gh auth token (#1533)

## PR Checklist

- [x] Addresses an existing open issue: fixes #1532
- [x] That issue was marked as [`status: accepting
prs`](https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/create-typescript-app/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

Swaps out `gh auth token` with `await getGitHubAuthToken()`. Doesn't
fully remove the dependency on `gh`.

💖

package.json

@@ -45,6 +45,7 @@
 		"all-contributors-for-repository": "^0.2.1",
 		"chalk": "^5.3.0",
 		"execa": "^9.0.0",
+		"get-github-auth-token": "^0.1.0",
 		"git-remote-origin-url": "^4.0.0",
 		"git-url-parse": "^14.0.0",
 		"js-yaml": "^4.1.0",

src/shared/options/getGitHub.test.ts

@@ -2,11 +2,11 @@ import { describe, expect, it, vi } from "vitest";
 
 import { getGitHub } from "./getGitHub.js";
 
-const mock$ = vi.fn();
+const mockGetGitHubAuthToken = vi.fn();
 
-vi.mock("execa", () => ({
-	get $() {
-		return mock$;
+vi.mock("get-github-auth-token", () => ({
+	get getGitHubAuthToken() {
+		return mockGetGitHubAuthToken;
 	},
 }));
 
@@ -25,17 +25,24 @@ vi.mock("octokit", () => ({
 }));
 
 describe("getOctokit", () => {
-	it("throws an error when gh auth status fails", async () => {
-		mock$.mockRejectedValueOnce(new Error("Oh no!"));
+	it("throws an error when getGitHubAuthToken fails", async () => {
+		mockGetGitHubAuthToken.mockResolvedValue({
+			error: "Oh no!",
+			succeeded: false,
+		});
 
 		await expect(getGitHub).rejects.toMatchInlineSnapshot(
 			"[Error: GitHub authentication failed.]",
 		);
 	});
 
-	it("returns a new Octokit when gh auth status succeeds", async () => {
+	it("returns a new Octokit when getGitHubAuthToken succeeds", async () => {
 		const auth = "abc123";
-		mock$.mockResolvedValueOnce({}).mockResolvedValueOnce({ stdout: auth });
+
+		mockGetGitHubAuthToken.mockResolvedValue({
+			succeeded: true,
+			token: auth,
+		});
 
 		const actual = await getGitHub();
 

src/shared/options/getGitHub.ts

@@ -1,4 +1,4 @@
-import { $ } from "execa";
+import { getGitHubAuthToken } from "get-github-auth-token";
 import { Octokit } from "octokit";
 
 export interface GitHub {
@@ -7,16 +7,15 @@ export interface GitHub {
 }
 
 export async function getGitHub(): Promise<GitHub | undefined> {
-	try {
-		await $`gh auth status`;
-	} catch (error) {
+	const auth = await getGitHubAuthToken();
+
+	if (!auth.succeeded) {
 		throw new Error("GitHub authentication failed.", {
-			cause: (error as Error).message,
+			cause: auth.error,
 		});
 	}
 
-	const auth = (await $`gh auth token`).stdout.trim();
-	const octokit = new Octokit({ auth });
+	const octokit = new Octokit({ auth: auth.token });
 
-	return { auth, octokit };
+	return { auth: auth.token, octokit };
 }

src/steps/uninstallPackages.ts

@@ -11,6 +11,7 @@ export async function uninstallPackages(offline: boolean | undefined) {
 			"all-contributors-for-repository",
 			"chalk",
 			"execa",
+			"get-github-auth-token",
 			"git-remote-origin-url",
 			"git-url-parse",
 			"lazy-value",