Add read-cache to load files

Author: TrySound

lib/load-content.js

@@ -1,12 +1,5 @@
-var fs = require("fs")
+var readCache = require("read-cache")
 
 module.exports = function(filename) {
-  return new Promise(function(resolve, reject) {
-    fs.readFile(filename, "utf-8", function(err, data) {
-      if (err) {
-        return reject(err)
-      }
-      resolve(data)
-    })
-  })
+  return readCache(filename, "utf-8")
 }

package.json

@@ -20,6 +20,7 @@
     "object-assign": "^4.0.1",
     "postcss": "^5.0.2",
     "postcss-value-parser": "^3.2.3",
+    "read-cache": "^1.0.0",
     "resolve": "^1.1.6"
   },
   "devDependencies": {