Add VRChat and GitHub packages to Unity project

Assets/VRCSDK/Dependencies/VRChat/Editor/SDKUpdater.cs

@@ -0,0 +1,70 @@
+using UnityEngine;
+using System.Collections;
+using UnityEditor;
+
+public class SDKUpdater : MonoBehaviour
+{
+	static string GetCurrentVersion()
+	{
+		string currentVersion = "";
+		string versionTextPath = Application.dataPath + "/VRCSDK/version.txt";
+		if(System.IO.File.Exists(versionTextPath))
+		{
+			string[] versionFileLines = System.IO.File.ReadAllLines(versionTextPath);
+			if(versionFileLines.Length > 0)
+				currentVersion = versionFileLines[0];	
+		}
+		return currentVersion;
+	}
+
+	[MenuItem("VRChat SDK/Utilities/Check For Updates")]
+	static void CheckForUpdatesWithProgressBar()
+	{
+		CheckForUpdates(false);
+	}
+
+	public static void CheckForUpdates(bool isSilent = true)
+	{
+		Debug.Log("Checking for VRChat SDK updates...");
+		if(!isSilent)
+			EditorUtility.DisplayProgressBar("SDK Updater", "Checking for updates...", 1f);
+		
+		VRC.Core.ConfigManager.RemoteConfig.Init(delegate() {
+			string currentSdkVersion = GetCurrentVersion();
+			string sdkVersion = VRC.Core.ConfigManager.RemoteConfig.GetString("devSdkVersion");
+			string sdkUrl = VRC.Core.ConfigManager.RemoteConfig.GetString("devSdkUrl");
+			EditorUtility.ClearProgressBar();
+
+			if(sdkVersion == currentSdkVersion)
+			{
+				ShowDownloadUpdatePopup(false, currentSdkVersion, sdkUrl, isSilent);
+			}
+			else
+			{
+				ShowDownloadUpdatePopup(true, sdkVersion, sdkUrl, isSilent);
+			}
+		});
+	}
+
+	static void ShowDownloadUpdatePopup(bool updateAvailable, string latestVersion, string sdkUrl, bool isSilent)
+	{
+		if(!updateAvailable)
+		{
+			if(!isSilent)
+				EditorUtility.DisplayDialog("VRChat SDK Updater", "SDK is up to date (version " + latestVersion + ")", "Okay");
+		}
+		else
+		{
+			if(EditorUtility.DisplayDialog("VRChat SDK Updater", "An update is available (version " + latestVersion + ")", "Download", "Cancel"))
+			{
+				DownloadUpdate(sdkUrl);
+			}
+		}
+	}
+
+	static void DownloadUpdate(string sdkUrl)
+	{
+		Application.OpenURL(sdkUrl);
+	}
+
+}