Remove empty-dir dependency and add our own implementation (#935)

.changeset/early-hats-live.md

@@ -0,0 +1,5 @@
+---
+'sku': patch
+---
+
+Remove `empty-dir` dependency

packages/sku/lib/isEmptyDir.js

@@ -0,0 +1,20 @@
+const { statSync, readdirSync } = require('node:fs');
+
+/**
+ * Returns whether the given directory is empty, throwing if the path is not a directory
+ * @typedef {import('fs').PathLike} PathLike
+ * @param {PathLike} path A path to a directory
+ */
+const isEmptyDir = (path) => {
+  const isDirectory = statSync(path).isDirectory();
+
+  if (!isDirectory) {
+    throw new Error(`${path} is not a directory`);
+  }
+
+  const files = readdirSync(path);
+
+  return files.length === 0;
+};
+
+module.exports = { isEmptyDir };

packages/sku/package.json

@@ -77,7 +77,6 @@
     "dedent": "^1.5.1",
     "didyoumean2": "^6.0.1",
     "ejs": "^3.1.8",
-    "empty-dir": "^3.0.0",
     "ensure-gitignore": "^1.1.2",
     "env-ci": "^7.0.0",
     "esbuild": "^0.19.7",

packages/sku/scripts/init.js

@@ -10,7 +10,7 @@ const {
 const chalk = require('chalk');
 const fs = require('node:fs/promises');
 const { posix: path } = require('node:path');
-const emptyDir = require('empty-dir');
+const { isEmptyDir } = require('../lib/isEmptyDir');
 const validatePackageName = require('validate-npm-package-name');
 const dedent = require('dedent');
 const { setCwd } = require('../lib/cwd');
@@ -125,7 +125,7 @@ const getTemplateFileDestinationFromRoot =
 
   await fs.mkdir(projectName, { recursive: true });
 
-  if (!emptyDir.sync(root)) {
+  if (!isEmptyDir(root)) {
     console.log(`The directory ${chalk.green(projectName)} is not empty.`);
     process.exit(1);
   }