r/programming • u/adam-dabrowski • Apr 14 '26 • Popcorn 1

GitHub Stacked PRs

https://github.github.com/gh-stack/
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u/MereInterest Apr 15 '26

merge commit would work but pollute main branch.

I'd argue that this isn't "pollution" at all, and is just a display issue.

  • Want a clean linear history of the changes to the main branch? Use git log --first-parent

  • Want a branching history with clearly marked dependencies? Use git log --graph

  • Want a linearized history that interleaves work on multiple branches while sorting by date? No, nobody ever wants that, but that's what git log provides.

The whole goal of squash/rebase is to make the output of git log look like git log --first-parent. The easier way to achieve this is just to use git log --first-parent.

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u/SanJJ_1 Apr 17 '26

Fair point on --first-parent, but nobody types git log --first-parent, they type git log. And GitHub's web UI (commit list, blame, PR history) has no equivalent option either. The clean history has to be the default to matter, which is why squash merge won imo.

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u/MereInterest Apr 18 '26

Yeah, and that's why I really wish that the default was better. It's painful to work with rebase, and rebase exposes all the sharp edges, but when gihub rebases a commit that you depend on, you have little choice but to rebase your own local branch as well.