COMMIT_MSG_FILE=$1
COMMIT_SOURCE=$2
SHA1=$3
# Gets the current branch name but if we're in a detached head state, return "HEAD"
BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD)
# Regex to match the ICU-#### branch name pattern we use
ISSUE_REGEX="^(ICU-[0-9]+)"

# Don't run commitizen for merge or squash commits, as well as when rebasing
if [ "${COMMIT_SOURCE}" = merge ] || [ "${COMMIT_SOURCE}" = squash ] || [ "${COMMIT_SOURCE}" = "message" -a "${BRANCH_NAME}" = "HEAD" ];then
    exit 0
fi

# If the branch name matches, set the JIRA link automatically
if [[ $BRANCH_NAME =~ $ISSUE_REGEX ]]
then
  issue="${BASH_REMATCH[1]}"
  url="https://hashicorp.atlassian.net/browse/${issue}"
  exec < /dev/tty && npx git-cz --issues="$url" --hook || true
else
  # This is to allow interaction with the terminal for commitizen
  exec < /dev/tty && npx git-cz --hook || true
fi