Commit to multiple branches at the same time with git

Question

I have two branches A and B in a project that I am working on. B differs from A by a single commit, which is a section of the code completely independent from what I'm working on for the next while (aka, I will have many commits I want to push to both branch A and B).

Is there any way in git that I can commit to both branch A and branch B at the same time, without having to commit it to one branch, checkout the other, and try to cherry pick out the commit(s).

Answer 1

You could:

• make all your commits on A
• rebase B on top of A (if you haven't pushed B already, that is)

That way, B will include all commits from A, plus its single commit.

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If you have shared B (pushed to a common remote repo), the idea is more to add any commit made on A to B (that is, "on top of B).

The simplest way would be to merge A on B, if you don't mind having only one commit on B representing all commits from A.
I would prefer that to any solution involving cherry-picking would mean different SHA1 for each commit recreated on B, which would make any future merge back to A complicated (because Git would go back a long way to find a common ancestor)