From cd4beb81b0089c80899eca614f8401f1ab296800 Mon Sep 17 00:00:00 2001
From: Henrique Vicente <henriquevicente@gmail.com>
Date: Thu, 1 Jan 2015 01:15:35 -0300
Subject: [PATCH] Adding caching for the config objects.

Close #331.
---
 lib/configs.js | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/lib/configs.js b/lib/configs.js
index d961b489..9abe264e 100644
--- a/lib/configs.js
+++ b/lib/configs.js
@@ -14,7 +14,8 @@ var fs = require('fs'),
     npm = require('npm'),
     path = require('path'),
     userhome = require('userhome'),
-    which = require('which');
+    which = require('which'),
+    cache = {};
 
 // -- Config -------------------------------------------------------------------
 
@@ -26,7 +27,7 @@ exports.getUserHomePath = function() {
     return userhome('.gh.json');
 };
 
-exports.getConfig = function(opt_plugin) {
+function getConfig(opt_plugin) {
     var globalConfig = exports.getGlobalConfig(opt_plugin),
         projectConfig,
         result = {};
@@ -47,6 +48,16 @@ exports.getConfig = function(opt_plugin) {
     catch (err) {
         return globalConfig;
     }
+}
+
+exports.getConfig = function(opt_plugin) {
+    if (cache[opt_plugin]) {
+        return cache[opt_plugin];
+    }
+
+    cache[opt_plugin] = getConfig(opt_plugin);
+
+    return cache[opt_plugin];
 };
 
 exports.getGlobalConfig = function(opt_plugin) {
@@ -58,6 +69,7 @@ exports.getGlobalConfig = function(opt_plugin) {
 
     if (!fs.existsSync(configPath)) {
         fs.writeFileSync(configPath, '{}');
+        cache = {};
     }
 
     try {
@@ -99,6 +111,7 @@ exports.removeGlobalConfig = function(key) {
         exports.getUserHomePath(),
         JSON.stringify(config, null, 4)
     );
+    cache = {};
 };
 
 exports.writeGlobalConfig = function(jsonPath, value) {
@@ -120,6 +133,7 @@ exports.writeGlobalConfig = function(jsonPath, value) {
         exports.getUserHomePath(),
         JSON.stringify(config, null, 4)
     );
+    cache = {};
 };
 
 exports.writeGlobalConfigCredentials = function(user, token) {