diff --git a/scripts/create-matrix.js b/scripts/create-matrix.js
index 4da78c14..284fb9a4 100644
--- a/scripts/create-matrix.js
+++ b/scripts/create-matrix.js
@@ -1,27 +1,10 @@
 const glob = require('glob')
+const file = require('./file.js')
 
-fileList(['ad'], []).then(files => {
+file.list(['ad'], []).then(files => {
   const country = files.map(file => file.replace(/channels\/|\.xml/gi, ''))
   const days = country.map(() => 2)
   const matrix = { country, days }
   const output = `::set-output name=matrix::${JSON.stringify(matrix)}`
   console.log(output)
 })
-
-function fileList(include = [], exclude = []) {
-  return new Promise(resolve => {
-    glob('channels/**/*.xml', function (err, files) {
-      if (include.length) {
-        include = include.map(filename => `channels/${filename}.xml`)
-        files = files.filter(filename => include.includes(filename))
-      }
-
-      if (exclude.length) {
-        exclude = exclude.map(filename => `channels/${filename}.xml`)
-        files = files.filter(filename => !exclude.includes(filename))
-      }
-
-      resolve(files)
-    })
-  })
-}