Feat: `create astro` add install step (#3190)

* feat: add instlal step with pkg manager detection

* feat: add package emoji for style points

* feat: update next steps to match pkg manager

* refactor: extract some create-astro test utils

* refactor: extract promp msgs to utils

* chore: add install step tests

* chore: changeset

* fix: remove directory test skip

* fix: unset env variables after install step test

* deps: add execa to create-astro

* refactor: use execa for install step

* chore: remove old comment

* fix: rework install step test for node 14?

* chore: remove "politely stolen" footnote

* temp: show stdout dialog

* feat: remove debugging logs, add dryrun flag for testing

* chore: more stray logs

* fix: remove rmdir

1 files changed, 71 insertions, 0 deletions

diff --git a/packages/create-astro/test/install-step.test.js b/packages/create-astro/test/install-step.test.js
new file mode 100644
index 000000000..91e3bc66c
--- /dev/null
+++ b/packages/create-astro/test/install-step.test.js
@@ -0,0 +1,71 @@
+import { setup, promiseWithTimeout, timeout, PROMPT_MESSAGES } from './utils.js';
+import { sep } from 'path';
+import fs from 'fs';
+import os from 'os';
+
+const FAKE_PACKAGE_MANAGER = 'banana';
+let initialEnvValue = null;
+
+describe('[create-astro] install', function () {
+	this.timeout(timeout);
+	let tempDir = '';
+	beforeEach(async () => {
+		tempDir = await fs.promises.mkdtemp(`${os.tmpdir()}${sep}`);
+	});
+	this.beforeAll(() => {
+		initialEnvValue = process.env.npm_config_user_agent;
+		process.env.npm_config_user_agent = FAKE_PACKAGE_MANAGER;
+	})
+	this.afterAll(() => {
+		process.env.npm_config_user_agent = initialEnvValue;
+	})
+
+	it('should respect package manager in prompt', function() {
+		const { stdout, stdin } = setup([tempDir, '--dryrun']);
+		return promiseWithTimeout((resolve) => {
+			const seen = new Set();
+			const installPrompt = PROMPT_MESSAGES.install(FAKE_PACKAGE_MANAGER);
+			stdout.on('data', (chunk) => {
+				if (!seen.has(PROMPT_MESSAGES.template) && chunk.includes(PROMPT_MESSAGES.template)) {
+					seen.add(PROMPT_MESSAGES.template);
+					stdin.write('\x0D');
+				}
+				if (!seen.has(PROMPT_MESSAGES.frameworks) && chunk.includes(PROMPT_MESSAGES.frameworks)) {
+					seen.add(PROMPT_MESSAGES.frameworks);
+					stdin.write('\x0D');
+				}
+				
+				if (!seen.has(installPrompt) && chunk.includes(installPrompt)) {
+					seen.add(installPrompt);
+					resolve();
+				}
+			});
+		});
+	});
+
+	it('should respect package manager in next steps', function() {
+		const { stdout, stdin } = setup([tempDir, '--dryrun']);
+		return promiseWithTimeout((resolve) => {
+			const seen = new Set();
+			const installPrompt = PROMPT_MESSAGES.install(FAKE_PACKAGE_MANAGER);
+			stdout.on('data', (chunk) => {
+				if (!seen.has(PROMPT_MESSAGES.template) && chunk.includes(PROMPT_MESSAGES.template)) {
+					seen.add(PROMPT_MESSAGES.template);
+					stdin.write('\x0D');
+				}
+				if (!seen.has(PROMPT_MESSAGES.frameworks) && chunk.includes(PROMPT_MESSAGES.frameworks)) {
+					seen.add(PROMPT_MESSAGES.frameworks);
+					stdin.write('\x0D');
+				}
+				
+				if (!seen.has(installPrompt) && chunk.includes(installPrompt)) {
+					seen.add(installPrompt)
+					stdin.write('n\x0D');
+				}
+				if (chunk.includes('banana dev')) {
+					resolve();
+				}
+			});
+		});
+	});
+})