git-commit-vandalism/git-rebase--am.sh
Neil Horman 90e1818f9a git-rebase: add keep_empty flag
Add a command line switch to git-rebase to allow a user the ability to specify
that they want to keep any commits in a series that are empty.

When git-rebase's type is am, then this option will automatically keep any
commit that has a tree object identical to its parent.

This patch changes the default behavior of interactive rebases as well.  With
this patch, git-rebase -i will produce a revision set passed to
git-revision-editor, in which empty commits are commented out.  Empty commits
may be kept manually by uncommenting them.  If the new --keep-empty option is
used in an interactive rebase the empty commits will automatically all be
uncommented in the editor.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-04-24 15:24:14 -07:00

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#!/bin/sh
#
# Copyright (c) 2010 Junio C Hamano.
#
. git-sh-setup
case "$action" in
continue)
git am --resolved --resolvemsg="$resolvemsg" &&
move_to_original_branch
exit
;;
skip)
git am --skip --resolvemsg="$resolvemsg" &&
move_to_original_branch
exit
;;
esac
test -n "$rebase_root" && root_flag=--root
if test -n "$keep_empty"
then
# we have to do this the hard way. git format-patch completely squashes
# empty commits and even if it didn't the format doesn't really lend
# itself well to recording empty patches. fortunately, cherry-pick
# makes this easy
git cherry-pick --allow-empty "$revisions"
else
git format-patch -k --stdout --full-index --ignore-if-in-upstream \
--src-prefix=a/ --dst-prefix=b/ \
--no-renames $root_flag "$revisions" |
git am $git_am_opt --rebasing --resolvemsg="$resolvemsg"
fi && move_to_original_branch
ret=$?
test 0 != $ret -a -d "$state_dir" && write_basic_state
exit $ret