neul...@dakosy.de writes:
> since I have added "pull.rebase=preserve" to my global configuration I
> wonder why "git pull" also trys to rebase if a fast forward merge is
> possible.
>
> A fast forward merge would speed up every pull if your local branch
> contains no new commits and the remote branch is ahead. The result would
> be the same.
>
> Is it possible to change the behavior of "git pull
> --rebase=true|preserve|interactive" to use a fast forward merge if the
> remote branch is ahead and the local branch contains no new commits?
Interesting. I do not think of a reason why we shouldn't.
If we were still working in scripted Porcelain, it would have been a
five minute hack, perhaps like this.
contrib/examples/git-pull.sh | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/contrib/examples/git-pull.sh b/contrib/examples/git-pull.sh
index 6b3a03f..3648040 100755
--- a/contrib/examples/git-pull.sh
+++ b/contrib/examples/git-pull.sh
@@ -358,6 +358,14 @@ fi
if test true = "$rebase"
then
+ if git merge-base --is-ancestor "$orig_head" "$merge_head"
+ then
+ # We can just fast-forward, as "git rebase --no-ff"
+ # is nonsense.
+ git merge --ff-only "$merge_head"
+ exit
+ fi
+
o=$(git show-branch --merge-base $curr_branch $merge_head $oldremoteref)
if test "$oldremoteref" = "$o"
then
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