sapling support

[sdunster]

Is anyone in contact with the folks developing Sapling? I just assumed it would have been updated already to set the right metadata so it Just Worked™ but alas it seems they have not.

[tgeruzov]

Yes - Sapling can be used with GitHub Stacked PRs now, but the intended integration is through gh stack link rather than having gh-stack manage the local Sapling stack.

Keep managing and pushing the branch chain with Sapling, then link those branches on GitHub in bottom-to-top order:

gh stack link branch-a branch-b branch-c

link doesn't create any local gh-stack tracking state. It uses existing PRs when they exist, creates missing ones, fixes their base branches to match the chain, and creates/updates the GitHub stack.

So Sapling remains responsible for the local stack, while gh stack link handles the GitHub Stacked PR representation.