Incremental Product Version to display in-game to the user

Development Platform & Builds
2

I ended up finding a decent solution on the unreal slackers discord

public static void IncrementGameVersion(string ProjectRootPath)
	{
		string gameIniPath = Path.GetFullPath(Path.Combine(ProjectRootPath, "Config", "DefaultGame.ini"));
		bool bFileExists = File.Exists(gameIniPath);

		if (!bFileExists)
		{
			System.Console.WriteLine($"ERROR: Can't find DefaultGame.ini at {gameIniPath}");
			return;
		}


		string projectVersionName = "ProjectVersion";
		string projectVersionNameLower = projectVersionName.ToLower();

		bool bFoundLine = false;
		string[] lines = File.ReadAllLines(gameIniPath);
		string newVersion = "1.0.0.0";

		for (int i = 0; i < lines.Length; i++)
		{
			if (lines[i].ToLower().StartsWith(projectVersionNameLower))
			{
				bFoundLine = true;
				string oldVersion = lines[i].Split("=")[1];
				string[] oldVersionSplit = oldVersion.Split(".");

				string Major = oldVersionSplit[0];
				string Minor = oldVersionSplit[1];
				string Patch = oldVersionSplit[2];
				UInt32 Build = UInt32.Parse(oldVersionSplit[3]);
				Build += 1;
				newVersion = Major + "." + Minor + "." + Patch + "." + Build;
				lines[i] = projectVersionName + "=" + newVersion;
				break;
			}
		}

		if (bFoundLine)
		{
			File.WriteAllLines(gameIniPath, lines);
			System.Console.WriteLine("New game version: " + newVersion);
		}
		else
		{
			System.Console.WriteLine($"ERROR: {projectVersionName} Not found in DefaultGame.ini at {gameIniPath}");
		}
	}

That function above is called in my Target.cs file
IncrementGameVersion(ProjectFile?.Directory.ToString());

then insides the game I can do

FString ProductVersion;
	if (GConfig->GetString(
		TEXT("/Script/EngineSettings.GeneralProjectSettings"),
		TEXT("ProjectVersion"),
		ProductVersion,
		GGameIni
	)) {
		return ProductVersion;
	}

This also works for a custom BuildInfo.ini and BuildDate I added similiarally as above but in other ini files.

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