Chained PR submission

[keith]

While chained PRs isn't really the goal of git-pile, and it doesn't really help you with merging things, or anything on the GitHub side of things. It mostly just works if you create the PRs with the right bases, and squash and merge. I have a prototype of this here keith/dotfiles#14 that I should finish up

[iainsmith]

👋 @keith. I was experimenting with this and was wondering if --onto might be a good flag for this, similar to git rebase --onto. I appreciate the flags aren't quite in the same order, but IMO it feels like a natural extension.

git submitpr head --onto head~2

What do you think?

Happy to raise a PR from iainsmith@7ff4d6f (which is a tweak of keith/dotfiles#14) if you are happy with it.

[keith]

Nice! yea I like the --onto wording, it's much nicer than the --commit arg I had. I think that change looks good if you want to submit a PR! 🎉

[keith]

#16