feat: add checkDir function for validating path

src/index.ts

@@ -1,8 +1,10 @@
 #!/usr/bin/env node
 
+import { log } from '@clack/prompts';
 import { cli } from 'cleye';
 
 import * as pkg from '../package.json';
+import { checkDir } from './operations/check-dir';
 import { createWorkspace } from './operations/create-workspace';
 import { getWorkspace } from './operations/get-workspace';
 import { openWorkspace } from './operations/open-workspace';
@@ -24,10 +26,16 @@ const argv = cli({
 
 const path = argv._.path;
 
-const workspace = await getWorkspace(path);
-if (workspace) {
-  await openWorkspace(workspace);
-} else {
-  const workspace = await createWorkspace(path);
-  await openWorkspace(workspace);
+try {
+  await checkDir(path);
+
+  const workspace = await getWorkspace(path);
+  if (workspace) {
+    await openWorkspace(workspace);
+  } else {
+    const workspace = await createWorkspace(path);
+    await openWorkspace(workspace);
+  }
+} catch (e) {
+  log.error(`${e}`);
 }

src/operations/check-dir.ts

@@ -0,0 +1,13 @@
+import { stat } from 'node:fs/promises';
+
+export async function checkDir(path: string) {
+  const stats = await stat(path).catch(() => {
+    throw new Error('invalid path');
+  });
+
+  if (!stats.isDirectory()) {
+    throw new Error('not a directory');
+  }
+
+  return true;
+}

test/operations/check-dir.test.ts

@@ -0,0 +1,45 @@
+import { existsSync } from 'node:fs';
+import { mkdir, readFile, rm, writeFile } from 'node:fs/promises';
+import { basename, resolve } from 'node:path';
+
+import { afterEach, beforeEach, expect, test, vi } from 'vitest';
+
+import { checkDir } from '../../src/operations/check-dir';
+
+const mocks = vi.hoisted(() => {
+  return {
+    testHomedir: () => resolve('test-tmp', basename(import.meta.url)),
+  };
+});
+
+beforeEach(async () => {
+  if (existsSync(mocks.testHomedir())) {
+    await rm(mocks.testHomedir(), { recursive: true, force: true });
+  }
+  await mkdir(mocks.testHomedir(), { recursive: true });
+
+  vi.mock('node:os', () => {
+    return {
+      homedir: () => mocks.testHomedir(),
+    };
+  });
+});
+
+afterEach(async () => {
+  vi.restoreAllMocks();
+});
+
+test('checkDir', async () => {
+  await expect(() =>
+    checkDir(resolve(mocks.testHomedir(), 'dir-1'))
+  ).rejects.toThrowError('invalid');
+
+  await mkdir(resolve(mocks.testHomedir(), 'dir-1'), { recursive: true });
+  await writeFile(resolve(mocks.testHomedir(), 'file-1'), '');
+
+  expect(await checkDir(resolve(mocks.testHomedir(), 'dir-1'))).toBe(true);
+
+  await expect(() =>
+    checkDir(resolve(mocks.testHomedir(), 'file-1'))
+  ).rejects.toThrowError('not a directory');
+});