From f26ddc6f8b447f1b5b97a2ef75019097c75e54ca Mon Sep 17 00:00:00 2001
From: Atlante45 <clement.brisset@gmail.com>
Date: Wed, 26 Oct 2016 14:47:53 -0700
Subject: [PATCH] Add getter for SteamVR's buildID to SteamClient

---
 interface/src/Application.cpp                 |  1 +
 .../src/steamworks-wrapper/SteamClient.cpp    | 26 +++++++++++++++++++
 .../src/steamworks-wrapper/SteamClient.h      |  1 +
 3 files changed, 28 insertions(+)

diff --git a/interface/src/Application.cpp b/interface/src/Application.cpp
index fcfbe0f3b1..af6be8021f 100644
--- a/interface/src/Application.cpp
+++ b/interface/src/Application.cpp
@@ -569,6 +569,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
     _deadlockWatchdogThread = new DeadlockWatchdogThread();
     _deadlockWatchdogThread->start();
 
+    qCDebug(interfaceapp) << "[VERSION] SteamVR buildID:" << SteamClient::getSteamVRBuildID();
     qCDebug(interfaceapp) << "[VERSION] Build sequence:" << qPrintable(applicationVersion());
     qCDebug(interfaceapp) << "[VERSION] MODIFIED_ORGANIZATION:" << BuildInfo::MODIFIED_ORGANIZATION;
     qCDebug(interfaceapp) << "[VERSION] VERSION:" << BuildInfo::VERSION;
diff --git a/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.cpp b/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.cpp
index 235d258d21..9936027302 100644
--- a/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.cpp
+++ b/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.cpp
@@ -245,6 +245,32 @@ void SteamClient::shutdown() {
     steamCallbackManager.getTicketRequests().stopAll();
 }
 
+int SteamClient::getSteamVRBuildID() {
+    if (initialized) {
+        static const int MAX_PATH_SIZE = 512;
+        static const int STEAMVR_APPID = 250820;
+        char rawPath[MAX_PATH_SIZE];
+        SteamApps()->GetAppInstallDir(STEAMVR_APPID, rawPath, MAX_PATH_SIZE);
+
+        QString path(rawPath);
+        path += "\\bin\\version.txt";
+        qDebug() << "SteamVR version file path:" << path;
+
+        QFile file(path);
+        if (file.open(QIODevice::ReadOnly)) {
+            QString buildIDString = file.readLine();
+
+            bool ok = false;
+            int buildID = buildIDString.toInt(&ok);
+            if (ok) {
+                return buildID;
+            }
+        }
+    }
+    return 0;
+}
+
+
 void SteamClient::runCallbacks() {
     if (!initialized) {
         return;
diff --git a/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.h b/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.h
index 5bf0d4db56..a191adee97 100644
--- a/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.h
+++ b/libraries/steamworks-wrapper/src/steamworks-wrapper/SteamClient.h
@@ -37,6 +37,7 @@ public:
     static void openInviteOverlay();
     static void joinLobby(QString lobbyId);
 
+    static int getSteamVRBuildID();
 };
 
 class SteamScriptingInterface : public QObject {