Merge pull request #49 from seald/48-eperm-root-directory-win32

Fix EPERM error when instantiating database in root directory on win32

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres
 to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Fixed
+- Fixed EPERM Exception when datastore is at the root of a disk on Windows [#48](https://github.com/seald/nedb/issues/48)
+
 ## [4.0.2] - 2023-05-05
 ### Fixed
 - Fixed typo in documentation [#36](https://github.com/seald/nedb/pull/36)

lib/persistence.js

@@ -373,8 +373,12 @@ class Persistence {
    * @private
    */
   static async ensureDirectoryExistsAsync (dir, mode = DEFAULT_DIR_MODE) {
+    const parsedDir = path.parse(path.resolve(dir))
+    // this is because on Windows mkdir throws a permission error when called on the root directory of a volume
+    if (process.platform !== 'win32' || parsedDir.dir !== parsedDir.root || parsedDir.base !== '') {
       await storage.mkdirAsync(dir, { recursive: true, mode })
     }
+  }
 }
 
 // Interface

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@seald-io/nedb",
-  "version": "4.0.2",
+  "version": "4.0.3-1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@seald-io/nedb",
-      "version": "4.0.2",
+      "version": "4.0.3-1",
       "license": "MIT",
       "dependencies": {
         "@seald-io/binary-search-tree": "^1.0.3",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@seald-io/nedb",
-  "version": "4.0.2",
+  "version": "4.0.3-1",
   "files": [
     "lib/**/*.js",
     "browser-version/**/*.js",