#!/bin/sh

# Uses a custom gh defmain alias to rename simple repos with no open PRs
# from master to main. USE AT YOUR OWN GREAT RISK! (Know what the fuck
# it does before you run it or that shit's on you.)

# WARNING: does not affect any open PRs against the master branch.

read -p 'Have you read every line of this script and understand exactly what it does? ' confirm
if [ "${confirm}" != yes ]; then
  echo "exiting."
  exit
fi

url=$(git config remote.origin.url | head -1)
repo=${url%.git}
repo=${repo##*github.com/}

# WARNING: The following code only works if you have added alias
# immediately below:
#   defmain: |
#     api -X PATCH "repos/$1" -f default_branch="main" 2>/dev/null

git branch -m master main && \
  git push -u origin main && sleep 4 && \
  gh defmain "${repo}" && sleep 4 && \
  git push origin --delete master