rebase: add --allow-empty-message option

This option allows commits with empty commit messages to be rebased,
matching the same option in git-commit and git-cherry-pick. While empty
log messages are frowned upon, sometimes one finds them in older
repositories (e.g. translated from another VCS [0]), or have other
reasons for desiring them. The option is available in git-commit and
git-cherry-pick, so it is natural to make other git tools play nicely
with them. Adding this as an option allows the default to be "give the
user a chance to fix", while not interrupting the user's workflow
otherwise [1].

  [0]: https://stackoverflow.com/q/8542304
  [1]: https://public-inbox.org/git/7vd33afqjh.fsf@alter.siamese.dyndns.org/

To implement this, add a new --allow-empty-message flag. Then propagate
it to all calls of 'git commit', 'git cherry-pick', and 'git rebase--helper'
within the rebase scripts.

Signed-off-by: Genki Sky <sky@genki.is>
Reviewed-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Genki Sky
2018-02-04 15:08:13 -05:00
committed by Junio C Hamano
parent 5be1f00a9a
commit a6c612b528
7 changed files with 53 additions and 11 deletions

View File

@ -24,6 +24,7 @@ m,merge! use merging strategies to rebase
i,interactive! let the user edit the list of commits to rebase
x,exec=! add exec lines after each commit of the editable list
k,keep-empty preserve empty commits during rebase
allow-empty-message allow rebasing commits with empty messages
f,force-rebase! force rebase even if branch is up to date
X,strategy-option=! pass the argument through to the merge strategy
stat! display a diffstat of what changed upstream
@ -89,6 +90,7 @@ action=
preserve_merges=
autosquash=
keep_empty=
allow_empty_message=
test "$(git config --bool rebase.autosquash)" = "true" && autosquash=t
case "$(git config --bool commit.gpgsign)" in
true) gpg_sign_opt=-S ;;
@ -262,6 +264,9 @@ do
--keep-empty)
keep_empty=yes
;;
--allow-empty-message)
allow_empty_message=--allow-empty-message
;;
--preserve-merges)
preserve_merges=t
test -z "$interactive_rebase" && interactive_rebase=implied