can you review this feature?

lib/index.js

@@ -82,6 +82,10 @@ fs.writeJSON = jsonFile.writeFile
 fs.writeJsonSync = jsonFile.writeFileSync
 fs.writeJSONSync = jsonFile.writeFileSync
 
+var row2arr = require('./row2arr')
+fs.readRow2Arr = row2arr.readRow2Arr
+fs.readRow2ArrSync = row2arr.readRow2ArrSync
+
 var empty = require('./empty-dir')
 Object.keys(empty).forEach(function (method) {
   fs[method] = empty[method]

lib/row2arr.js

@@ -0,0 +1,47 @@
+var fs = require('graceful-fs')
+var os = require('os')
+
+function withoutCommentLine (arr) {
+  var arrLength = arr.length
+  var filterArr = []
+
+  for (var i = 0; i < arrLength; i++) {
+    var checkText = arr[i]
+
+    if (/^#.*/.test(checkText) === false) {
+      filterArr.push(checkText)
+    }
+  }
+
+  return filterArr
+}
+
+function readRow2Arr (file, callback) {
+  fs.readFile(file, {
+    encoding: 'utf-8'
+  }, function (err, data) {
+    if (err) {
+      callback(err)
+      return false
+    }
+
+    var rowarr = data.split(os.EOL)
+
+    callback(err, withoutCommentLine(rowarr))
+  })
+}
+
+function readRow2ArrSync (file) {
+  var data = fs.readFileSync(file, {
+    encoding: 'utf-8'
+  })
+
+  var rowarr = data.split(os.EOL)
+
+  return withoutCommentLine(rowarr)
+}
+
+module.exports = {
+  readRow2Arr: readRow2Arr,
+  readRow2ArrSync: readRow2ArrSync
+}

test/row2arr/read.test.js

@@ -0,0 +1,65 @@
+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('read', function () {
+  var TEST_DIR
+
+  beforeEach(function (done) {
+    TEST_DIR = path.join(os.tmpdir(), 'fs-extra', 'read-json')
+    fse.emptyDir(TEST_DIR, done)
+  })
+
+  afterEach(function (done) {
+    fse.remove(TEST_DIR, done)
+  })
+
+  describe('+ convert to array', function () {
+    it('should read a file and convert row to arr', function (done) {
+      var text = 'aaaa\nbbbb\ncccc\ndddd'
+
+      var file = path.join(TEST_DIR, 'file.txt')
+      fs.writeFileSync(file, text)
+
+      fse.readRow2Arr(file, function (err, arr) {
+        assert.ifError(err)
+        assert.strictEqual(arr[0], 'aaaa')
+        assert.strictEqual(arr[1], 'bbbb')
+        assert.strictEqual(arr[2], 'cccc')
+
+        done()
+      })
+    })
+
+    it('should read a file and convert row to arr by sync', function () {
+      var text = 'aaaa\nbbbb\ncccc\ndddd'
+
+      var file = path.join(TEST_DIR, 'file.txt')
+      fs.writeFileSync(file, text)
+
+      var rowarr = fse.readRow2ArrSync(file)
+
+      assert.strictEqual(rowarr[0], 'aaaa')
+      assert.strictEqual(rowarr[1], 'bbbb')
+      assert.strictEqual(rowarr[2], 'cccc')
+    })
+
+    it('should be ignore comment line', function () {
+      var text = 'aaaa\nbbbb\ncccc\n# ignore line\ndddd'
+
+      var file = path.join(TEST_DIR, 'file.txt')
+      fs.writeFileSync(file, text)
+
+      var rowarr = fse.readRow2ArrSync(file)
+
+      assert.strictEqual(rowarr[0], 'aaaa')
+      assert.strictEqual(rowarr[1], 'bbbb')
+      assert.strictEqual(rowarr[2], 'cccc')
+      assert.strictEqual(rowarr[3], 'dddd')
+    })
+  })
+})