Update gpt.yml only when changes have been made (#52)

* Update gpt.yml only when changes have been made

Program.cs

@@ -116,7 +116,7 @@ static void Main(string[] args)
 
             app.Run(args);
 
-            if (ConfigHelper.ConfigFileExists && ConfigHelper.IsConfigFileValid) {
+            if (ConfigHelper.ConfigFileExists && ConfigHelper.IsConfigFileValid && ConfigHelper.ConfigUpdated) {
                 try {
                     // Save config file
                     ConfigHelper.SaveConfigFile();

helper/internal/config/ConfigHelper.cs

@@ -12,6 +12,10 @@ class ConfigHelper
 
         public static bool ConfigFileExists { get { return configFileExists; } }
 
+        private static bool configUpdated = false;
+
+        public static bool ConfigUpdated { get { return configUpdated; } set { configUpdated = value; }}
+
         private static bool configFileValid = false;
 
         public static bool IsConfigFileValid { get { return configFileValid; } }

helper/internal/config/sections/NodeJsConfig.cs

@@ -9,6 +9,10 @@ public static string NodeJsVersion
             }
 
             set {
+                if (appConfig.Nodejs.Version != value) {
+                    ConfigUpdated = true;
+                }
+
                 appConfig.Nodejs.Version = value;
             }
         }

helper/internal/config/sections/PhpConfig.cs

@@ -11,6 +11,10 @@ public static string PhpVersion
             }
 
             set {
+                if (appConfig.Php.Version != value) {
+                    ConfigUpdated = true;
+                }
+
                 appConfig.Php.Version = value;
             }
         }

helper/internal/config/sections/ServicesConfig.cs

@@ -18,6 +18,8 @@ public static List<string> ActiveServices
             }
 
             set {
+                ConfigUpdated = true;
+
                 appConfig.Services.Active = value;
             }
         }

helper/php/PhpIniHelper.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using Gitpod.Tool.Helper.Internal.Config;
 using Gitpod.Tool.Helper.Internal.Config.Sections;
 using Spectre.Console;
 
@@ -99,6 +100,9 @@ public static void AddSettingToPhpIni(string name, string value, bool setForWeb
                 }
             }
 
+            // Manually set that the config has been updated
+            ConfigHelper.ConfigUpdated = true;
+
             // Update the ini files that are being used by apache and cli
             UpdatePhpIniFiles(isDebug);