Reduce create-astro dependencies

.changeset/moody-houses-drum.md

@@ -0,0 +1,5 @@
+---
+'create-astro': minor
+---
+
+Reduce dependency installation size, swap `execa` for light `node:child_process` wrapper

packages/create-astro/package.json

@@ -32,15 +32,14 @@
   "//b": "DEPENDENCIES IS FOR UNBUNDLED PACKAGES",
   "dependencies": {
     "@astrojs/cli-kit": "^0.2.3",
-    "chai": "^4.3.7",
-    "execa": "^6.1.0",
-    "giget": "1.0.0",
-    "mocha": "^9.2.2",
+    "giget": "^1.1.2",
     "node-fetch-native": "^1.2.0",
     "which-pm-runs": "^1.1.0"
   },
   "devDependencies": {
     "@types/which-pm-runs": "^1.0.0",
+    "chai": "^4.3.7",
+    "mocha": "^9.2.2",
     "arg": "^5.0.2",
     "astro-scripts": "workspace:*",
     "strip-ansi": "^7.1.0",

packages/create-astro/src/actions/dependencies.ts

@@ -1,5 +1,5 @@
 import { color } from '@astrojs/cli-kit';
-import { execa } from 'execa';
+import { shell } from '../shell.js';
 import fs from 'node:fs';
 import path from 'node:path';
 import { error, info, spinner, title } from '../messages.js';
@@ -49,12 +49,7 @@ export async function dependencies(
 
 async function install({ pkgManager, cwd }: { pkgManager: string; cwd: string }) {
 	if (pkgManager === 'yarn') await ensureYarnLock({ cwd });
-	const installExec = execa(pkgManager, ['install'], { cwd });
-	return new Promise<void>((resolve, reject) => {
-		setTimeout(() => reject(`Request timed out after 1m 30s`), 90_000);
-		installExec.on('error', (e) => reject(e));
-		installExec.on('close', () => resolve());
-	});
+	return shell(pkgManager, ['install'], { cwd, timeout: 90_000, stdio: 'ignore' });
 }
 
 async function ensureYarnLock({ cwd }: { cwd: string }) {

packages/create-astro/src/actions/git.ts

@@ -3,7 +3,7 @@ import path from 'node:path';
 import type { Context } from './context';
 
 import { color } from '@astrojs/cli-kit';
-import { execa } from 'execa';
+import { shell } from '../shell.js';
 import { error, info, spinner, title } from '../messages.js';
 
 export async function git(ctx: Pick<Context, 'cwd' | 'git' | 'yes' | 'prompt' | 'dryRun'>) {
@@ -45,9 +45,9 @@ export async function git(ctx: Pick<Context, 'cwd' | 'git' | 'yes' | 'prompt' |
 
 async function init({ cwd }: { cwd: string }) {
 	try {
-		await execa('git', ['init'], { cwd, stdio: 'ignore' });
-		await execa('git', ['add', '-A'], { cwd, stdio: 'ignore' });
-		await execa(
+		await shell('git', ['init'], { cwd, stdio: 'ignore' });
+		await shell('git', ['add', '-A'], { cwd, stdio: 'ignore' });
+		await shell(
 			'git',
 			[
 				'commit',

packages/create-astro/src/messages.ts

@@ -1,7 +1,7 @@
 /* eslint no-console: 'off' */
 import { color, say as houston, label, spinner as load } from '@astrojs/cli-kit';
 import { align, sleep } from '@astrojs/cli-kit/utils';
-import { execa } from 'execa';
+import { shell } from './shell.js';
 import fetch from 'node-fetch-native';
 import { exec } from 'node:child_process';
 import stripAnsi from 'strip-ansi';
@@ -14,7 +14,7 @@ import detectPackageManager from 'which-pm-runs';
 async function getRegistry(): Promise<string> {
 	const packageManager = detectPackageManager()?.name || 'npm';
 	try {
-		const { stdout } = await execa(packageManager, ['config', 'get', 'registry']);
+		const { stdout } = await shell(packageManager, ['config', 'get', 'registry']);
 		return stdout?.trim()?.replace(/\/$/, '') || 'https://registry.npmjs.org';
 	} catch (e) {
 		return 'https://registry.npmjs.org';

packages/create-astro/src/shell.ts

@@ -0,0 +1,44 @@
+// This is an extremely simplified version of [`execa`](https://github.com/sindresorhus/execa)
+// intended to keep our dependency size down
+import type { StdioOptions } from 'node:child_process';
+import type { Readable } from 'node:stream';
+
+import { text as textFromStream } from 'node:stream/consumers';
+import { spawn } from 'node:child_process';
+import { setTimeout as sleep } from 'node:timers/promises';
+
+export interface ExecaOptions {
+    cwd?: string | URL;
+    stdio?: StdioOptions;
+    timeout?: number;
+}
+export interface Output {
+    stdout: string;
+    stderr: string;
+    exitCode: number;
+}
+const text = (stream: NodeJS.ReadableStream | Readable | null) => stream ? textFromStream(stream).then(t => t.trimEnd()) : '';
+
+export async function shell(command: string, flags: string[], opts: ExecaOptions = {}): Promise<Output> {
+    const controller = opts.timeout ? new AbortController() : undefined;
+    const child = spawn(command, flags, {
+        cwd: opts.cwd,
+        shell: true,
+        stdio: opts.stdio,
+        signal: controller?.signal
+    })
+    const stdout = await text(child.stdout);
+    const stderr = await text(child.stderr);
+    if (opts.timeout) {
+        sleep(opts.timeout).then(() => {
+            controller!.abort();
+            throw { stdout, stderr, exitCode: 1 }
+        })
+    }
+    await new Promise((resolve) => child.on('exit', resolve))
+    const { exitCode } = child;
+    if (exitCode !== 0) {
+        throw { stdout, stderr, exitCode };
+    }
+    return { stdout, stderr, exitCode }
+}

packages/create-astro/test/fixtures/not-empty/git.json

@@ -0,0 +1 @@
+{}

packages/create-astro/test/git.test.js

@@ -1,7 +1,6 @@
 import { expect } from 'chai';
-
-import { execa } from 'execa';
-import fs from 'node:fs';
+import { mkdir, writeFile } from 'node:fs/promises';
+import { rmSync } from 'node:fs';
 
 import { git } from '../dist/index.js';
 import { setup } from './utils.js';
@@ -16,22 +15,6 @@ describe('git', () => {
 		expect(fixture.hasMessage('Skipping Git initialization')).to.be.true;
 	});
 
-	it('already initialized', async () => {
-		const context = {
-			git: true,
-			cwd: './test/fixtures/not-empty',
-			dryRun: true,
-			prompt: () => ({ git: false }),
-		};
-		await execa('git', ['init'], { cwd: './test/fixtures/not-empty' });
-		await git(context);
-
-		expect(fixture.hasMessage('Git has already been initialized')).to.be.true;
-
-		// Cleanup
-		fs.rmSync('./test/fixtures/not-empty/.git', { recursive: true, force: true });
-	});
-
 	it('yes (--dry-run)', async () => {
 		const context = { cwd: '', dryRun: true, prompt: () => ({ git: true }) };
 		await git(context);
@@ -46,3 +29,29 @@ describe('git', () => {
 		expect(fixture.hasMessage('Skipping Git initialization')).to.be.true;
 	});
 });
+
+describe('git initialized', () => {
+	const fixture = setup();
+	const dir = new URL(new URL('./fixtures/not-empty/.git', import.meta.url));
+
+	before(async () => {
+		await mkdir(dir, { recursive: true });
+		await writeFile(new URL('./git.json', dir), '{}', { encoding: 'utf8' });
+	})
+
+	it('already initialized', async () => {
+		const context = {
+			git: true,
+			cwd: './test/fixtures/not-empty',
+			dryRun: false,
+			prompt: () => ({ git: false }),
+		};
+		await git(context);
+
+		expect(fixture.hasMessage('Git has already been initialized')).to.be.true;
+	});
+
+	after(() => {
+		rmSync(dir, { recursive: true, force: true });
+	})
+})