Hello world

util.js

@@ -0,0 +1,42 @@
+// https://www.npmjs.com/package/get-folder-size
+// Adapted for CommonJS and synchronous Filesystem calls.
+
+const fs = require('fs')
+const path = require('path')
+
+async function getFolderSize (rootItemPath, options = {}) {
+  const fileSizes = new Map()
+
+  await processItem(rootItemPath)
+
+  async function processItem (itemPath) {
+    if (options.ignore?.test(itemPath)) return
+
+    const stats = fs.lstatSync(itemPath, { bigint: true })
+    if (typeof stats !== 'object') return
+    fileSizes.set(stats.ino, stats.size)
+
+    if (stats.isDirectory()) {
+      const directoryItems = fs.readdirSync(itemPath)
+      if (typeof directoryItems !== 'object') return
+      await Promise.all(
+        directoryItems.map(directoryItem =>
+          processItem(path.join(itemPath, directoryItem))
+        )
+      )
+    }
+  }
+
+  let folderSize = Array.from(fileSizes.values()).reduce((total, fileSize) => total + fileSize, 0n)
+
+  if (!options.bigint) {
+    if (folderSize > BigInt(Number.MAX_SAFE_INTEGER)) {
+      throw new RangeError('The folder size is too large to return as a Number. You can instruct this package to return a BigInt instead.')
+    }
+    folderSize = Number(folderSize)
+  }
+
+  return folderSize
+}
+
+module.exports = { getFolderSize }