lib/config.js: async/await

See nodegit#1867.

lib/config.js

@@ -1,19 +1,18 @@
-var util = require("util");
-var NodeGit = require("../");
+const util = require("util");
+const NodeGit = require("../");
 
-var Config = NodeGit.Config;
+const Config = NodeGit.Config;
 
-var _getBool = Config.prototype.getBool;
-var _setBool = Config.prototype.setBool;
+const _getBool = Config.prototype.getBool;
+const _setBool = Config.prototype.setBool;
 
 /**
  * @async
  * @param {String} name The variable's name
  * @return {Boolean} The variable's value
  */
-Config.prototype.getBool = function(name) {
-  return _getBool.call(this, name)
-    .then(result => Boolean(result));
+Config.prototype.getBool = async function (name) {
+  return Boolean(await _getBool.call(this, name));
 };
 
 /**
@@ -22,27 +21,22 @@ Config.prototype.getBool = function(name) {
  * @param {Boolean} name The variable's value
  * @return {Number} 0 or an error code
  */
-Config.prototype.setBool = function(name, value) {
+Config.prototype.setBool = function (name, value) {
   return _setBool.call(this, name, value ? 1 : 0);
 };
 
 // Backwards compatibility.
-Config.prototype.getString = function() {
+Config.prototype.getString = function () {
   return this.getStringBuf.apply(this, arguments);
 };
 
 NodeGit.Enums.CVAR = {};
-var DEPRECATED_CVAR_ENUMS = [
-  "FALSE",
-  "TRUE",
-  "INT32",
-  "STRING"
-];
+var DEPRECATED_CVAR_ENUMS = ["FALSE", "TRUE", "INT32", "STRING"];
 DEPRECATED_CVAR_ENUMS.forEach((key) => {
   Object.defineProperty(NodeGit.Enums.CVAR, key, {
     get: util.deprecate(
       () => Config.MAP[key],
       `Use NodeGit.Config.MAP.${key} instead of NodeGit.Enums.CVAR.${key}.`
-    )
+    ),
   });
 });