[PATCH 0/3] rebase: learn --keep-base

This series teaches rebase the --keep-base option.

'git rebase --keep-base <upstream>' is equivalent to 'git rebase --onto <upstream>... <upstream>' or 'git rebase --onto $(git merge-base <upstream> HEAD) <upstream>' .

This seems to be a common case that people (including myself!) run into; I was able to find these StackOverflow posts about this use case:

* https://stackoverflow.com/questions/53234798/can-i-rebase-on-a-branchs-fork-point-without-explicitly-specifying-the-parent
* https://stackoverflow.com/questions/41529128/how-do-you-rebase-only-changes-between-two-branches-into-another-branch
* https://stackoverflow.com/a/4207357

Denton Liu (3):
  rebase: teach rebase --keep-base
  t3416: test rebase --keep-base
  git-rebase.txt: document --keep-base option

 Documentation/git-rebase.txt     | 12 +++++--
 builtin/rebase.c                 | 25 ++++++++++++--
 t/t3416-rebase-onto-threedots.sh | 57 ++++++++++++++++++++++++++++++++
 3 files changed, 88 insertions(+), 6 deletions(-)