feat: drop dependency on gh (#1000)

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## PR Checklist

- [x] Addresses an existing open issue: fixes #667
- [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

Replaces the end-user dependency on `gh` (the GitHub CLI) with more
manual Octokit calls. It's a bit less convenient this way but is more
type-safe and means users don't need to have some random GitHub utility
installed to use the template.

Update December 2023: this works but I don't like how the user has to
either have `gh` logged in or use a `process.env.GH_TOKEN`... I'd like
to find the time to look into alternatives to log the user in.

Update August 2024: I don't want to procrastinate any more. This PR
doesn't make things _worse_. So as long as error messages explicitly
tell people to either log in with `gh` or set `process.env.GH_TOKEN`,
this is fine.

Author: JoshuaKGoldberg

README.md

@@ -24,9 +24,9 @@ It includes options not just for building and testing but also GitHub repository
 
 First make sure you have the following installed:
 
-- [GitHub CLI](https://cli.github.com) _(you'll need to be logged in)_
 - [Node.js](https://nodejs.org)
 - [pnpm](https://pnpm.io)
+- _(optional, but helpful)_ [GitHub CLI](https://cli.github.com) _(you'll need to be logged in)_
 
 Then in an existing repository or in your directory where you'd like to make a new repository:
 

src/create/createWithOptions.test.ts

@@ -93,7 +93,10 @@ describe("createWithOptions", () => {
 		};
 
 		await createWithOptions({ github, options });
-		expect(addToolAllContributors).toHaveBeenCalledWith(options);
+		expect(addToolAllContributors).toHaveBeenCalledWith(
+			github.octokit,
+			options,
+		);
 	});
 
 	it("does not call addToolAllContributors when excludeAllContributors is true", async () => {

src/create/createWithOptions.ts

@@ -31,7 +31,7 @@ export async function createWithOptions({ github, options }: GitHubAndOptions) {
 
 	if (!options.excludeAllContributors && !options.skipAllContributorsApi) {
 		await withSpinner("Adding contributors to table", async () => {
-			await addToolAllContributors(options);
+			await addToolAllContributors(github?.octokit, options);
 		});
 	}
 

src/initialize/initializeWithOptions.test.ts

@@ -81,7 +81,10 @@ describe("initializeWithOptions", () => {
 			options,
 		});
 
-		expect(mockAddOwnerAsAllContributor).toHaveBeenCalledWith(options);
+		expect(mockAddOwnerAsAllContributor).toHaveBeenCalledWith(
+			undefined,
+			options,
+		);
 	});
 
 	it("does not run addOwnerAsAllContributor when excludeAllContributors is true", async () => {

src/initialize/initializeWithOptions.ts

@@ -41,7 +41,7 @@ export async function initializeWithOptions({
 
 	if (!options.excludeAllContributors) {
 		await withSpinner("Updating existing contributor details", async () => {
-			await addOwnerAsAllContributor(options);
+			await addOwnerAsAllContributor(github?.octokit, options);
 		});
 	}
 

src/shared/getGitHubUserAsAllContributor.test.ts

@@ -1,4 +1,5 @@
 import chalk from "chalk";
+import { Octokit } from "octokit";
 import { beforeEach, describe, expect, it, MockInstance, vi } from "vitest";
 
 import { getGitHubUserAsAllContributor } from "./getGitHubUserAsAllContributor.js";
@@ -13,6 +14,11 @@ vi.mock("execa", () => ({
 
 let mockConsoleWarn: MockInstance;
 
+const createMockOctokit = (getAuthenticated: MockInstance = vi.fn()) =>
+	({
+		rest: { users: { getAuthenticated } },
+	}) as unknown as Octokit;
+
 const owner = "TestOwner";
 
 describe("getGitHubUserAsAllContributor", () => {
@@ -23,7 +29,8 @@ describe("getGitHubUserAsAllContributor", () => {
 	});
 
 	it("defaults to owner with a log when options.offline is true", async () => {
-		const actual = await getGitHubUserAsAllContributor({
+		const octokit = createMockOctokit();
+		const actual = await getGitHubUserAsAllContributor(octokit, {
 			offline: true,
 			owner,
 		});
@@ -36,23 +43,24 @@ describe("getGitHubUserAsAllContributor", () => {
 		);
 	});
 
+	it("defaults to owner without a log when octokit is undefined", async () => {
+		const actual = await getGitHubUserAsAllContributor(undefined, { owner });
+
+		expect(actual).toEqual(owner);
+		expect(mockConsoleWarn).not.toHaveBeenCalled();
+	});
+
 	it("uses the user from gh api user when it succeeds", async () => {
 		const login = "gh-api-user";
+		const octokit = createMockOctokit(
+			vi.fn().mockResolvedValue({ data: { login } }),
+		);
 
-		mock$.mockResolvedValueOnce({
-			stdout: JSON.stringify({ login }),
-		});
-
-		await getGitHubUserAsAllContributor({ owner });
+		await getGitHubUserAsAllContributor(octokit, { owner });
 
 		expect(mockConsoleWarn).not.toHaveBeenCalled();
 		expect(mock$.mock.calls).toMatchInlineSnapshot(`
 			[
-			  [
-			    [
-			      "gh api user",
-			    ],
-			  ],
 			  [
 			    [
 			      "npx -y [email protected] add ",
@@ -67,9 +75,11 @@ describe("getGitHubUserAsAllContributor", () => {
 	});
 
 	it("defaults the user to the owner when gh api user fails", async () => {
-		mock$.mockRejectedValueOnce({});
+		const octokit = createMockOctokit(
+			vi.fn().mockRejectedValue(new Error("Oh no!")),
+		);
 
-		await getGitHubUserAsAllContributor({ owner });
+		await getGitHubUserAsAllContributor(octokit, { owner });
 
 		expect(mockConsoleWarn).toHaveBeenCalledWith(
 			chalk.gray(
@@ -78,11 +88,6 @@ describe("getGitHubUserAsAllContributor", () => {
 		);
 		expect(mock$.mock.calls).toMatchInlineSnapshot(`
 			[
-			  [
-			    [
-			      "gh api user",
-			    ],
-			  ],
 			  [
 			    [
 			      "npx -y [email protected] add ",

src/shared/getGitHubUserAsAllContributor.ts

@@ -1,13 +1,11 @@
 import chalk from "chalk";
 import { $ } from "execa";
+import { Octokit } from "octokit";
 
 import { Options } from "./types.js";
 
-interface GhUserOutput {
-	login: string;
-}
-
 export async function getGitHubUserAsAllContributor(
+	octokit: Octokit | undefined,
 	options: Pick<Options, "offline" | "owner">,
 ) {
 	if (options.offline) {
@@ -21,14 +19,18 @@ export async function getGitHubUserAsAllContributor(
 
 	let user: string;
 
-	try {
-		user = (JSON.parse((await $`gh api user`).stdout) as GhUserOutput).login;
-	} catch {
-		console.warn(
-			chalk.gray(
-				`Couldn't authenticate GitHub user, falling back to the provided owner name '${options.owner}'.`,
-			),
-		);
+	if (octokit) {
+		try {
+			user = (await octokit.rest.users.getAuthenticated()).data.login;
+		} catch {
+			console.warn(
+				chalk.gray(
+					`Couldn't authenticate GitHub user, falling back to the provided owner name '${options.owner}'.`,
+				),
+			);
+			user = options.owner;
+		}
+	} else {
 		user = options.owner;
 	}
 

src/shared/options/createRepositoryWithApi.ts

@@ -22,14 +22,20 @@ export async function createRepositoryWithApi(
 
 	const currentUser = await octokit.rest.users.getAuthenticated();
 
-	if (currentUser.data.login === options.owner) {
-		await octokit.rest.repos.createForAuthenticatedUser({
-			name: options.repository,
-		});
-	} else {
-		await octokit.rest.repos.createInOrg({
-			name: options.repository,
-			org: options.owner,
+	try {
+		if (currentUser.data.login === options.owner) {
+			await octokit.rest.repos.createForAuthenticatedUser({
+				name: options.repository,
+			});
+		} else {
+			await octokit.rest.repos.createInOrg({
+				name: options.repository,
+				org: options.owner,
+			});
+		}
+	} catch (error) {
+		throw new Error("Failed to create new repository on GitHub.", {
+			cause: error,
 		});
 	}
 }

src/shared/options/getGitHub.test.ts

@@ -32,7 +32,7 @@ describe("getOctokit", () => {
 		});
 
 		await expect(getGitHub).rejects.toMatchInlineSnapshot(
-			"[Error: GitHub authentication failed.]",
+			`[Error: Couldn't authenticate with GitHub. Either log in with \`gh auth login\` (https://cli.github.com) or set a GH_TOKEN environment variable.]`,
 		);
 	});
 

src/shared/options/getGitHub.ts

@@ -10,9 +10,10 @@ export async function getGitHub(): Promise<GitHub | undefined> {
 	const auth = await getGitHubAuthToken();
 
 	if (!auth.succeeded) {
-		throw new Error("GitHub authentication failed.", {
-			cause: auth.error,
-		});
+		throw new Error(
+			"Couldn't authenticate with GitHub. Either log in with `gh auth login` (https://cli.github.com) or set a GH_TOKEN environment variable.",
+			{ cause: auth.error },
+		);
 	}
 
 	const octokit = new Octokit({ auth: auth.token });