#!/usr/bin/env bash
set -euo pipefail

BRANCH=$(git rev-parse --abbrev-ref HEAD)
if [[ "$BRANCH" != "master" ]]; then
  echo "Aborting release! Not on master. Current branch is '$BRANCH'.";
  exit 1;
fi

COMMIT_MESSAGE=$(git log --format=%B -n 1)
if ! [[ $COMMIT_MESSAGE =~ ^Prepare[[:space:]]to[[:space:]]release[[:space:]]v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
  echo "Aborting release! Commit message is improperly formatted. Commit message is '$COMMIT_MESSAGE'.";
  exit 1;
fi

bundle exec rake release