On Fri, Sep 06, 2013 at 03:14:25PM -0700, Junio C Hamano wrote:
> Jonathan Nieder <jrnie...@gmail.com> writes:
>
> > John Keeping wrote:
> >> On Thu, Sep 05, 2013 at 12:18:45PM -0700, Junio C Hamano wrote:
> >
> >>> I somehow thought that rebase by default looked in the reflog to do
> >>> exactly that. Perhaps I am not remembering correctly.
> >>
> >> It just does @{upstream} by default, which tends to get messy if the
> >> upstream has been rewritten.
> >
> > Maybe Junio is thinking of 'git pull --rebase', which walks the reflog
> > until it finds an ancestor of the current branch and uses that as the
> > <upstream> parameter to rebase.
>
> You're right.
>
> It makes me wonder why we did that one inside pull and not in
> rebase, though.
I'd never realised "pull --rebase" does that - it's exactly what I want
sometimes and I normally do fetch followed by rebase to get more control
over the process.
Perhaps we should do something like this (with added tests and
documentation)?
-- >8 --
Subject: [PATCH] rebase: use reflog to find common base with upstream
Signed-off-by: John Keeping <j...@keeping.me.uk>
---
git-rebase.sh | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/git-rebase.sh b/git-rebase.sh
index 8d7659a..5e3013d 100755
--- a/git-rebase.sh
+++ b/git-rebase.sh
@@ -428,6 +428,14 @@ then
error_on_missing_default_upstream "rebase" "rebase" \
"against" "git rebase <branch>"
fi
+ for reflog in $(git rev-list -g "$upstream_name" 2>/dev/null)
+ do
+ if test "$reflog" = "$(git merge-base "$reflog" HEAD)"
+ then
+ upstream_name=$reflog
+ break
+ fi
+ done
;;
*) upstream_name="$1"
shift
--
1.8.4.239.g2332621
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