#!/bin/bash
# SPDX-FileCopyrightText: Copyright (c) 2025 Yegor Bugayenko
# SPDX-License-Identifier: MIT

set -e -o pipefail

if [ -n "${GITTED_TESTING}" ]; then
    set -x
fi

if ! git rev-parse --git-dir > /dev/null 2>&1; then
    echo "Oops, this is not a Git repository"
    exit 1
fi

base=$(dirname "$0")

if [ -z "${GIT_BIN}" ]; then
  GIT_BIN=git
fi

name=$1
if [ -z "${name}" ]; then
    echo "Use it like this: 'branch 42'"
    echo "Here, '42' is the name of the branch and GitHub issue number"
    exit 1
fi

"${GIT_BIN}" checkout master

"${base}/pull"

"${GIT_BIN}" status

"${GIT_BIN}" checkout -b "${name}"

while true; do
  "${GIT_BIN}" push origin "${name}" && break
  if [ -n "${GITTED_TESTING}" ]; then
    exit 1
  fi
done

"${GIT_BIN}" branch "--set-upstream-to=origin/${name}" "${name}"
