protected void AddPrependPathToEnvironment()
{
// Validate args.
Trace.Entering();
ArgUtil.NotNull(ExecutionContext.PrependPath, nameof(ExecutionContext.PrependPath));
if (ExecutionContext.PrependPath.Count == 0)
{
return;
}
// Prepend path.
string prepend = string.Join(Path.PathSeparator.ToString(), ExecutionContext.PrependPath.Reverse <string>());
var containerStepHost = StepHost as ContainerStepHost;
if (containerStepHost != null)
{
containerStepHost.PrependPath = prepend;
}
else
{
string taskEnvPATH;
Environment.TryGetValue(Constants.PathVariable, out taskEnvPATH);
string originalPath = RuntimeVariables.Get(Constants.PathVariable) ?? // Prefer a job variable.
taskEnvPATH ?? // Then a task-environment variable.
System.Environment.GetEnvironmentVariable(Constants.PathVariable) ?? // Then an environment variable.
string.Empty;
string newPath = PathUtil.PrependPath(prepend, originalPath);
AddEnvironmentVariable(Constants.PathVariable, newPath);
}
}