Question

How would I go about moving a commit up a branch to be as early as possible without any conflicts (without much manual work, eg rebase -i)?

Eg

A-B-C-D-X

should become

A-B-X-C-D

if swapping X with C and D has no conflicts but swapping X with B would result in a conflict.

Thanks.

Answer 1

Well, this pretty much works but needs some cleanup.

After working with it for a while, I’ve bumped into another problem which I’ve posted here.

#!/bin/sh -e

# todo: integrate with git
GIT_DIR=./.git/

commitid=$1

if [ "$1" = "" ]; then
   echo usage: $0 commitid
   exit 1
fi

tmpdir="$GIT_DIR/bubble-work"
/bin/rm -rf "$tmpdir"
mkdir "$tmpdir"

# checkout commit with detached head
git checkout -q $commitid^0 || die "could not detach HEAD"

while [ 1 = 1 ]; do

# todo pipe output to avoid temp files
# see git-rebase.sh

patchfile=`git format-patch -k --full-index --src-prefix=a/ --dst-prefix=b/ --no-renames -o "$tmpdir" HEAD~1`
echo patch = $patchfile

git checkout -q HEAD~2
git am --rebasing "$patchfile" || die "git am failed"
/bin/rm -f "$patchfile"

echo looping
done



/bin/rm -rf "$tmpdir"