Re: Contradictory git help rebase

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On Mon, Jul 21, 2025 at 02:57:37PM -0500, Rodney Bates wrote:
> The text and an example in the output of git help rebase seem to contradict about
> which branch gets changed by git rebase master topic.  Here is an edited version
> of the output, with irrelevant stuff omitted and relationships made specific.
> 
> NAME
>        git-rebase - Reapply commits on top of another base tip
> 
> SYNOPSIS
>        git rebase
>                                                 [<upstream> [<branch>]]
> 
> In the example command below, <upstream> is master and <branch> is topic.
> 
> 
>        If <branch> is specified, git rebase will perform an automatic git switch <branch> before doing anything else.
>        Otherwise it remains on the current branch.
> 
> Current branch is now <branch>=topic.
> 
>        If <upstream> is not specified ... (irrelevant)
> 
> 
>        All changes made by commits in the current branch (=topic) but that are not in <=upstream> (master) are saved to a temporary area.
> 
>        The current branch is reset to <upstream>,
> 
> Current branch is now <upstream>=master.

No, that's not correct.  "The current branch is reset to <upstream>"
means that the current branch's head commit is reset to the same as
<upstream>'s.  That's what resetting a branch means: it means changing
the commit that the branch points to.

You misinterpreted "[t]he current branch is reset to <upstream>" to mean
"the current workspace's branch is changed to be <upstream>", but this
is wrong.

"Reset" is confusing, so it's no surprise that it confused you.

>        The commits that were previously saved into the temporary area are then reapplied to the current branch (master), one by
>        one, in order.
> 
> I.e., master is changed, topic is not.
>
> [...]
>
> But this diagram shows topic changed, master not.

No, because you misunderstood what reset means.

Nico
-- 




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