add config setting to disable update checks (#202)

release-notes.md

@@ -4,6 +4,7 @@
 See [log](https://github.com/Pathoschild/SMAPI/compare/stable...develop).
 
 For players:
+  * Added option to disable update checks.
   * Fixed error when a mod uses the new reflection API on a missing field or method.
 
 For developers:

src/StardewModdingAPI/Framework/UserSettings.cs

@@ -3,7 +3,13 @@
     /// <summary>Contains user settings from SMAPI's JSON configuration file.</summary>
     internal class UserSettings
     {
+        /*********
+        ** Accessors
+        *********/
         /// <summary>Whether to enable development features.</summary>
         public bool DeveloperMode { get; set; }
+
+        /// <summary>Whether to check if a newer version of SMAPI is available on startup.</summary>
+        public bool CheckForUpdates { get; set; } = true;
     }
 }

src/StardewModdingAPI/Program.cs

@@ -118,8 +118,10 @@ namespace StardewModdingAPI
             if (Program.Settings.DeveloperMode)
             {
                 Program.Monitor.ShowTraceInConsole = true;
-                Program.Monitor.Log($"SMAPI is running in developer mode. The console may be much more verbose. You can disable developer mode by editing or deleting {Constants.ApiConfigPath}.", LogLevel.Alert);
+                Program.Monitor.Log($"You configured SMAPI to run in developer mode. The console may be much more verbose. You can disable developer mode by installing the non-developer version of SMAPI, or by editing or deleting {Constants.ApiConfigPath}.", LogLevel.Warn);
             }
+            if (!Program.Settings.CheckForUpdates)
+                Program.Monitor.Log($"You configured SMAPI to not check for updates. Running an old version of SMAPI is not recommended. You can enable update checks by editing or deleting {Constants.ApiConfigPath}.", LogLevel.Warn);
 
             // initialise legacy log
             Log.Monitor = new Monitor("legacy mod", Program.LogFile) { ShowTraceInConsole = Program.Settings.DeveloperMode };
@@ -148,7 +150,8 @@ namespace StardewModdingAPI
                 }
 
                 // check for update when game loads
-                GameEvents.GameLoaded += (sender, e) => Program.CheckForUpdateAsync();
+                if (Program.Settings.CheckForUpdates)
+                    GameEvents.GameLoaded += (sender, e) => Program.CheckForUpdateAsync();
 
                 // launch game
                 Program.StartGame();

src/StardewModdingAPI/StardewModdingAPI.config.json

@@ -1,3 +1,4 @@
 {
-  "DeveloperMode": true
+  "DeveloperMode": true,
+  "CheckForUpdates": true
 }