lib/empty-dir: created emptyDirSync()

lib/empty-dir.js

@@ -0,0 +1,23 @@
+var fs = require('fs')
+var path = require('path')
+var mkdir = require('./mkdir')
+var remove = require('./remove')
+
+function emptyDirSync (dir) {
+  var items
+  try {
+    items = fs.readdirSync(dir)
+  } catch (err) {
+    return mkdir.mkdirsSync(dir)
+  }
+
+  items.forEach(function (item) {
+    item = path.join(dir, item)
+    remove.removeSync(item)
+  })
+}
+
+module.exports = {
+  emptyDirSync: emptyDirSync,
+  emptydirSync: emptyDirSync
+}

lib/index.js

@@ -85,6 +85,10 @@ fs.writeJSON = jsonFile.writeFile
 fs.writeJsonSync = jsonFile.writeFileSync
 fs.writeJSONSync = jsonFile.writeFileSync
 
+var empty = require('./empty-dir')
+Object.keys(empty).forEach(function (method) {
+  fs[method] = empty[method]
+})
 
 module.exports = fs
 

test/empty/empty-dir-sync.js

@@ -0,0 +1,54 @@
+var assert = require('assert')
+var fs = require('fs')
+var path = require('path')
+var os = require('os')
+var fse = require(process.cwd())
+
+/* global afterEach, beforeEach, describe, it */
+
+describe('+ emptyDir()', function () {
+  var TEST_DIR
+
+  beforeEach(function () {
+    TEST_DIR = path.join(os.tmpdir(), 'test-fs-extra', 'empty-dir')
+    if (fs.existsSync(TEST_DIR)) {
+      fse.removeSync(TEST_DIR)
+    }
+    fse.ensureDirSync(TEST_DIR)
+  })
+
+  afterEach(function () {
+    fse.removeSync(TEST_DIR)
+  })
+
+  describe('> when directory exists and contains items', function () {
+    it('should delete all of the items', function () {
+      // verify nothing
+      assert.equal(fs.readdirSync(TEST_DIR).length, 0)
+      fse.ensureFileSync(path.join(TEST_DIR, 'some-file'))
+      fse.ensureFileSync(path.join(TEST_DIR, 'some-file-2'))
+      fse.ensureDirSync(path.join(TEST_DIR, 'some-dir'))
+      assert.equal(fs.readdirSync(TEST_DIR).length, 3)
+
+      fse.emptyDirSync(TEST_DIR)
+      assert.equal(fs.readdirSync(TEST_DIR).length, 0)
+    })
+  })
+
+  describe('> when directory exists and contains no items', function () {
+    it('should do nothing', function () {
+      assert.equal(fs.readdirSync(TEST_DIR).length, 0)
+      fse.emptyDirSync(TEST_DIR)
+      assert.equal(fs.readdirSync(TEST_DIR).length, 0)
+    })
+  })
+
+  describe('> when directory does not exist', function () {
+    it('should create it', function () {
+      fse.removeSync(TEST_DIR)
+      assert(!fs.existsSync(TEST_DIR))
+      fse.emptyDirSync(TEST_DIR)
+      assert.equal(fs.readdirSync(TEST_DIR).length, 0)
+    })
+  })
+})