feat: `astro info` command (#7432)

Co-authored-by: Sarah Rainsberger <sarah@rainsberger.ca>

4 files changed, 87 insertions, 6 deletions

diff --git a/.changeset/happy-donuts-taste.md b/.changeset/happy-donuts-taste.md
new file mode 100644
index 000000000..2751d1dd0
--- /dev/null
+++ b/.changeset/happy-donuts-taste.md
@@ -0,0 +1,20 @@
+---
+'astro': minor
+---
+
+Adds a new command `astro info`, useful for sharing debugging information about your current environment when you need help!
+
+```shell
+astro info
+```
+
+Output
+
+```
+Astro version            v2.6.6
+Package manager          pnpm
+Platform                 darwin
+Architecture             arm64
+Adapter                  @astrojs/vercel/serverless
+Integrations             None
+```
diff --git a/packages/astro/package.json b/packages/astro/package.json
index 63410c2de..eba193727 100644
--- a/packages/astro/package.json
+++ b/packages/astro/package.json
@@ -166,6 +166,7 @@
     "vfile": "^5.3.7",
     "vite": "^4.3.9",
     "vitefu": "^0.2.4",
+    "which-pm": "^2.0.0",
     "yargs-parser": "^21.1.1",
     "zod": "^3.20.6"
   },
diff --git a/packages/astro/src/cli/index.ts b/packages/astro/src/cli/index.ts
index 4f0fa941c..cee50ac92 100644
--- a/packages/astro/src/cli/index.ts
+++ b/packages/astro/src/cli/index.ts
@@ -19,6 +19,7 @@ import { formatConfigErrorMessage, formatErrorMessage, printHelp } from '../core
 import * as event from '../events/index.js';
 import { eventConfigError, eventError, telemetry } from '../events/index.js';
 import { openInBrowser } from './open.js';
+import { arch, platform } from 'node:os';
 
 type Arguments = yargs.Arguments;
 type CLICommand =
@@ -32,6 +33,7 @@ type CLICommand =
 	| 'reload'
 	| 'sync'
 	| 'check'
+	| 'info'
 	| 'telemetry';
 
 /** Display --help flag */
@@ -47,6 +49,7 @@ function printAstroHelp() {
 				['check', 'Check your project for errors.'],
 				['dev', 'Start the development server.'],
 				['docs', 'Open documentation in your web browser.'],
+				['info', 'List info about your current Astro setup.'],
 				['preview', 'Preview your build locally.'],
 				['sync', 'Generate content collection types.'],
 				['telemetry', 'Configure telemetry settings.'],
@@ -71,6 +74,56 @@ async function printVersion() {
 	console.log(`  ${colors.bgGreen(colors.black(` astro `))} ${colors.green(`v${ASTRO_VERSION}`)}`);
 }
 
+async function printInfo({
+	cwd,
+	flags,
+	logging,
+}: {
+	cwd?: string;
+	flags?: Flags;
+	logging: LogOptions;
+}) {
+	const whichPm = await import('which-pm');
+	const packageManager = await whichPm.default(process.cwd());
+	let adapter = "Couldn't determine.";
+	let integrations = [];
+
+	const MAX_PADDING = 25;
+	function printRow(label: string, value: string) {
+		const padding = MAX_PADDING - label.length;
+		console.log(`${colors.bold(label)}` + ' '.repeat(padding) + `${colors.green(value)}`);
+	}
+
+	try {
+		const { userConfig } = await openConfig({
+			cwd,
+			flags,
+			cmd: 'info',
+			logging,
+		});
+		if (userConfig.adapter?.name) {
+			adapter = userConfig.adapter.name;
+		}
+		if (userConfig.integrations) {
+			integrations = (userConfig?.integrations ?? [])
+				.filter(Boolean)
+				.flat()
+				.map((i: any) => i?.name);
+		}
+	} catch (_e) {}
+	console.log();
+	printRow('Astro version', `v${ASTRO_VERSION}`);
+	printRow('Package manager', packageManager.name);
+	printRow('Platform', platform());
+	printRow('Architecture', arch());
+	printRow('Adapter', adapter);
+	let integrationsString = "None or couldn't determine.";
+	if (integrations.length > 0) {
+		integrationsString = integrations.join(', ');
+	}
+	printRow('Integrations', integrationsString);
+}
+
 /** Determine which command the user requested */
 function resolveCommand(flags: Arguments): CLICommand {
 	const cmd = flags._[2] as string;
@@ -85,6 +138,7 @@ function resolveCommand(flags: Arguments): CLICommand {
 		'preview',
 		'check',
 		'docs',
+		'info',
 	]);
 	if (supportedCommands.has(cmd)) {
 		return cmd as CLICommand;
@@ -116,7 +170,11 @@ async function handleConfigError(
  **/
 async function runCommand(cmd: string, flags: yargs.Arguments) {
 	const root = flags.root;
-
+	// logLevel
+	let logging: LogOptions = {
+		dest: nodeLogDestination,
+		level: 'info',
+	};
 	switch (cmd) {
 		case 'help':
 			printAstroHelp();
@@ -124,13 +182,12 @@ async function runCommand(cmd: string, flags: yargs.Arguments) {
 		case 'version':
 			await printVersion();
 			return process.exit(0);
+		case 'info': {
+			await printInfo({ cwd: root, flags, logging });
+			return process.exit(0);
+		}
 	}
 
-	// logLevel
-	let logging: LogOptions = {
-		dest: nodeLogDestination,
-		level: 'info',
-	};
 	if (flags.verbose) {
 		logging.level = 'debug';
 		enableVerboseLogging();
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 0ee9cf674..3ede0d921 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -643,6 +643,9 @@ importers:
       vitefu:
         specifier: ^0.2.4
         version: 0.2.4(vite@4.3.9)
+      which-pm:
+        specifier: ^2.0.0
+        version: 2.0.0
       yargs-parser:
         specifier: ^21.1.1
         version: 21.1.1