[feature request] Show stack in PR

[lsanwick]

If I have a stack of changes A -> B -> C and I create PRs, there is nothing to indicate that C is part of a stack and is built on top of A and B. Would it be possible to have SPR amend the PR description with this information as well?

[smeenai]

I'd love this too. There's other stacked landing tools I've found that do this but they have their own downsides:

• https://github.com/ezyang/ghstack is less configurable, e.g. around the branches it pushes to (probably solvable with PRs though)
• https://github.com/ejoffe/spr doesn't handle updates to commits as nicely, so it's much harder to see what changed on each iteration of a PR.

Unfortunately this project seems a bit inactive (e.g. #198 has been open for three months to fix broken links in the README), so I'm not sure when this will get addressed.

[oleg-codaio]

@smeenai you might be interested in: aviator-co/av#271, which I contributed to since that actually seemed like the most mature tool.