Rebase Commits With An Arbitrary Command

Interactive rebasing is a powerful way to manage and tend to the history of a git repository. Rewording and squashing commits are fairly common actions. But what if you need to run some arbitrary command against a series of recent commits?

This is where the --exec flag comes in to play.

$ git rebase -i HEAD~3 --exec "git commit --amend --reset-authors -CHEAD"

This generates an interactive rebase file that you can review and save when ready.

pick ea4a215 Add Globally Install A Package With Yarn as a javascript til
exec git commit --amend --reset-author -CHEAD
pick a4f4143 Add Initialize A New JavaScript Project With Yarn as a javascript til
exec git commit --amend --reset-author -CHEAD
pick 2f00aeb Add Default And Named Exports From The Same Module as a javascript til
exec git commit --amend --reset-author -CHEAD

As you can see, the specified command is prepared for execution for each commit involved in the rebase.

h/t Patricia Arbona