git prepend <branch>

The prepend command creates a new feature branch as the parent of the current branch. It does that by inserting the new feature branch between the current feature branch and it's old parent. Before it does that, it syncs the current feature branch to ensure commits into the new branch are on top of the current state of the repository.

Example

Consider this branch setup:

main
 \
  feature-2

We are on the feature-2 branch. After running git prepend feature-1, our repository has this branch setup:

main
 \
  feature-1
   \
    feature-2

Variations

If the new-branch-push-flag is set, git hack creates a remote tracking branch for the new feature branch. This behavior is disabled by default to make git hack run fast. The first run of git sync will create the remote tracking branch.