diff --git a/scripts/core/file.js b/scripts/core/file.js
index ecb4a040..440b3928 100644
--- a/scripts/core/file.js
+++ b/scripts/core/file.js
@@ -1,6 +1,7 @@
 const path = require('path')
 const glob = require('glob')
 const fs = require('mz/fs')
+const crlf = require('crlf')
 
 const file = {}
 
@@ -65,4 +66,13 @@ file.basename = function (filepath) {
   return path.basename(filepath)
 }
 
+file.eol = function (filepath) {
+  return new Promise((resolve, reject) => {
+    crlf.get(filepath, null, function (err, endingType) {
+      if (err) reject(err)
+      resolve(endingType)
+    })
+  })
+}
+
 module.exports = file