A helper tool to fix local clones after renaming "master" branches to "main"

rename-master-to-main.sh

#! /bin/bash

set -e

if ! git diff-index --quiet HEAD --; then
  echo "ERROR: you have uncommited changes. Please stash or commit before running this script."
  exit 1
fi

git fetch
git checkout main
git pull origin main

delete_branch=$(git branch -D master) || true