Add/Remove packages as part of a build script

Hi all,
I'm trying to add/remove packages in a new build system I'm making.

I'm using Client.Remove and Client.Add to remove and add packages respectively.

As it's a build system that might be applied from command line, it should be able to do it in one call. However I'm hitting errors where I remove packages (like ARCore package) and it still has compile errors related to the ARCore package, despite it being removed.

Here is some snippets of the code (the entire system is a few files, so a bit much to put it all in here)
To remove a package:

Code (CSharp):

1. RemoveRequest removeRequest = Client.Remove(packageToRemove);
2. removeRequests.Add(removeRequest);

Then to wait for the request:

Code (CSharp):

1. while (!removeRequests.TrueForAll(request => request.IsCompleted))
2. {
3.     //Wait
4. }

Pretty much the same happens for Add packages

My tldr question is, is there a way to add and remove packages synchronously within an editor call before a build?
I'm currently using Unity 2019.3.15f1

 

Thank you for the reply, yes that would be quite helpful
So far I have got it so it can continue the build after a package import by using EditorPrefs to save the state before a compilation as started and checking that EditorPrefs on InitializeOnLoad. Though it would be good for someway to persist certain script executions between compiles, I understand that could be a difficult thing to acheive in the current compilation pipeline

 

Hello @samuelb_unity, is there any update regarding the feature you talked about?

 

Just to help future thread readers, this feature has been implemented and is present at least on 2021.3: https://docs.unity3d.com/ScriptReference/PackageManager.Client.AddAndRemove.html