protected override bool PerformPrequisites()
{
if (TaskOptions.HasFlag(DDCTaskOptions.ColdDDC))
{
StoredEnvVars.Clear();
CachePaths.Clear();
// We put our temp DDC paths in here
DirectoryReference BasePath = DirectoryReference.Combine(CommandUtils.EngineDirectory, "BenchmarkDDC");
IEnumerable <string> DDCEnvVars = new string[] { GetXPlatformEnvironmentKey("UE-BootDataCachePath"), GetXPlatformEnvironmentKey("UE-LocalDataCachePath") };
if (TaskOptions.HasFlag(DDCTaskOptions.KeepMemoryDDC))
{
DDCEnvVars = DDCEnvVars.Where(E => !E.Contains("UE-Boot"));
}
// get all current environment vars and set them to our temp dir
foreach (var Key in DDCEnvVars)
{
// save current key
StoredEnvVars.Add(Key, Environment.GetEnvironmentVariable(Key));
// create a new dir for this key
DirectoryReference Dir = DirectoryReference.Combine(BasePath, Key);
if (DirectoryReference.Exists(Dir))
{
DirectoryReference.Delete(Dir, true);
}
DirectoryReference.CreateDirectory(Dir);
// save this dir and set it as the env var
CachePaths.Add(Dir);
Environment.SetEnvironmentVariable(Key, Dir.FullName);
}
// remove project files
DirectoryReference ProjectDDC = DirectoryReference.Combine(ProjectFile.Directory, "DerivedDataCache");
CommandUtils.DeleteDirectory_NoExceptions(ProjectDDC.FullName);
// remove S3 files
DirectoryReference S3DDC = DirectoryReference.Combine(ProjectFile.Directory, "Saved", "S3DDC");
CommandUtils.DeleteDirectory_NoExceptions(S3DDC.FullName);
}
return(base.PerformPrequisites());
}
protected override void PerformCleanup()
{
// restore keys
foreach (var KV in StoredEnvVars)
{
Environment.SetEnvironmentVariable(KV.Key, KV.Value);
}
foreach (var Dir in CachePaths)
{
CommandUtils.DeleteDirectory_NoExceptions(Dir.FullName);
}
CachePaths.Clear();
StoredEnvVars.Clear();
}