install

#!/bin/bash
# install

die() {
  echo -e "\033[0;31m${1}\033[0m"
  exit 1
}

if [[ "$1" = "-h" ]]; then
  cat <<-EOS
Usage: $0 [VERSION [--local]]

  --local   Check for bread tar in releases/
EOS
  exit
fi


REPO="eliten00b/bread"
if [ -z "${1}" ]; then
  VERSION="$(curl -Ls "https://raw.githubusercontent.com/${REPO}/master/share/bread/version")"
  echo "bread version ${VERSION} found"
else
  VERSION="${1}"
fi
INSTALL_ROOT="/usr/local"
TMP_TAR="/usr/local/tmp/bread-${VERSION}.tar.gz"

mkdir -p "/usr/local/tmp" || die "Fail to create tmp folder"

if [ "${2}" = "--local" ]; then
  cp "releases/bread-${VERSION}.tar.gz" "${TMP_TAR}" || die "no permissions to install"

else
  RELEASE_URL="https://github.com/${REPO}/releases/download/v${VERSION}/bread-${VERSION}.tar.gz"
  HTTP_CODE="$(curl -w "%{http_code}" -Lso /dev/null "${RELEASE_URL}")"
  [[ "${HTTP_CODE}" -eq "200" ]] || die "download failed"
  curl -Lo "${TMP_TAR}" "${RELEASE_URL}" || die "no permissions to install"
fi

tar xzf "${TMP_TAR}" -C "${INSTALL_ROOT}" || die "can not extract files"
tar tf "${TMP_TAR}" > "${INSTALL_ROOT}/share/bread/installed_files"
rm "${TMP_TAR}"
touch "${INSTALL_ROOT}/share/bread/package_list"

cat << EOS
bread ${VERSION} installed.
  usage: bread help
EOS