feat(cli): Exit(1) if the directory contains conflict

Author: getspooky

cli/init.ts

@@ -8,6 +8,7 @@ import util from '../shared/util.ts'
 import { defaultReactVersion } from '../shared/constants.ts'
 import { VERSION } from '../version.ts'
 import { x_brotli, x_flate } from '../server/compress.ts'
+import isFolderEmpty from './helpers/is-folder-empty.ts';
 
 export const helpMessage = `
 Usage:
@@ -28,6 +29,10 @@ export default async function (nameArg?: string) {
     return
   }
 
+  if (!isFolderEmpty(cwd, name)) {
+    Deno.exit(1)
+  }
+
   const template = 'hello-world' // todo: add template select ui
   const vscode = await confirm('Add recommended workspace settings of VS Code?')