This is a script to interactively rebase all feature branches and then safely get rid of them after they are fully merged.

Inside the git repo:

bash ./cleanup.sh [branch...]

If branch is unspecified, the script operates on all branches other than the main branch.

The script goes branch by branch, and:

1. Displays the top commit of the branch, then asks whether to attempt a rebase of the branch. Say y to rebase, n to skip, D to force delete the branch.
2. Rebases the branch on top of the main branch. If the rebase fails, the script exits allowing you to fix conflicts and continue.
3. If rebase succeeds, it displays the new top commit of the branch, which will be the top commit of the main branch if the feature branch is obsolete. Say y to (safely) delete the feature branch, n to delete.

The script assumes that the main remote is called origin, and the main branch is either master or main.