fix: forward exit code of external package commands

.changeset/proud-apples-watch.md

@@ -0,0 +1,5 @@
+---
+'sv': patch
+---
+
+fix: forward exit code of external package commands

packages/cli/commands/check.ts

@@ -5,6 +5,7 @@ import { Command } from 'commander';
 import * as resolve from 'empathic/resolve';
 import { resolveCommand } from 'package-manager-detector/commands';
 import { getUserAgent } from '../utils/package-manager.ts';
+import { forwardExitCode } from '../utils/common.js';
 
 export const check = new Command('check')
 	.description('a CLI for checking your Svelte code')
@@ -42,5 +43,7 @@ function runCheck(cwd: string, args: string[]) {
 	try {
 		const cmd = resolveCommand(pm, 'execute-local', ['svelte-check', ...args])!;
 		execSync(`${cmd.command} ${cmd.args.join(' ')}`, { stdio: 'inherit', cwd });
-	} catch {}
+	} catch (error) {
+		forwardExitCode(error);
+	}
 }

packages/cli/commands/migrate.ts

@@ -3,6 +3,7 @@ import process from 'node:process';
 import { Command } from 'commander';
 import { resolveCommand } from 'package-manager-detector';
 import { getUserAgent } from '../utils/package-manager.ts';
+import { forwardExitCode } from '../utils/common.js';
 
 export const migrate = new Command('migrate')
 	.description('a CLI for migrating Svelte(Kit) codebases')
@@ -31,5 +32,7 @@ function runMigrate(cwd: string, args: string[]) {
 
 		const cmd = resolveCommand(pm, 'execute', cmdArgs)!;
 		execSync(`${cmd.command} ${cmd.args.join(' ')}`, { stdio: 'inherit', cwd });
-	} catch {}
+	} catch (error) {
+		forwardExitCode(error);
+	}
 }

packages/cli/utils/common.ts

@@ -3,6 +3,7 @@ import pkg from '../package.json' with { type: 'json' };
 import * as p from '@sveltejs/clack-prompts';
 import type { Argument, HelpConfiguration, Option } from 'commander';
 import { UnsupportedError } from './errors.ts';
+import process from 'node:process';
 
 const NO_PREFIX = '--no-';
 let options: readonly Option[] = [];
@@ -96,3 +97,11 @@ export function getPadding(lines: string[]) {
 	const lengths = lines.map((s) => s.length);
 	return Math.max(...lengths);
 }
+
+export function forwardExitCode(error: unknown) {
+	if (error && typeof error === 'object' && 'status' in error && typeof error.status == 'number') {
+		process.exit(error.status);
+	} else {
+		process.exit(1);
+	}
+}