REPO_URL="https://github.com/nix-darwin/nix-darwin.git"
BRANCH="master"

git remote add upstream $REPO_URL
git fetch upstream
git checkout $BRANCH
git reset --hard upstream/$BRANCH
git push origin $BRANCH

mkdir -p .cnb && tee .cnb/web_trigger.yml <<EOF
branch:
  - buttons:
      - name: Sync
        description: Sync manually
        event: web_trigger_sync
EOF

tee .cnb.yml <<EOF
.sync:
  name: sync with upstream
  script:
    - git remote add upstream $REPO_URL
    - git fetch upstream
    - git rebase upstream/$BRANCH
    - git push origin $BRANCH --force
$BRANCH:
  web_trigger_sync:
    - stages:
        - !reference [.sync]
  "crontab: 0 8 * * *":
    - stages:
        - !reference [.sync]
EOF

git add .cnb .cnb.yml
git commit -m "build: sync with upstream"
git push origin $BRANCH