setup.sh

#!/usr/bin/env bash
#
# setup script for supa.sh

source "./src/settings.sh"
source "./lib/installer.sh"

usage() {
  cat << EOF
setup

Usage:
  ./setup <i|install|r|remove|upgrade>

Commands:
  i|install
          install supa.sh and create its manpage

  rm|remove
          uninstall supa.sh and remove its manpage

  upgrade
          update manpage

EOF
}

get_args() {
  if [[ -z $1 ]]; then
    usage
  fi

  local POSITIONAL=()
  while [[ $# -gt 0 ]]
  do
    local key=$1

    case $key in
      -h|--help)
        usage
        exit 0
        ;;
      i|install)
        install
        exit 0
        ;;
      rm|remove)
        uninstall
        exit 0
        ;;
      up|upgrade)
        upgrade
        exit 0
        ;;
      *)
        # get operator
        if [[ $1 =~ ^.+@.+$ ]]; then
          OPERATOR="$1"
        fi
        POSITIONAL+=("$1")
        shift
        ;;
    esac
  done
  set -- "${POSITIONAL[@]}"
}

install_manpage() {
  printf '%s\n' "Create man page to /usr/local/man/man8"

  if [[ -e "${_dir}/static/man8/${INSTALLABLE_NAME}.8" ]] ; then
    if [[ ! -e "/usr/local/man/man8/${INSTALLABLE_NAME}.8.gz" ]] ; then
      mkdir -p /usr/local/man/man8
      cp "${_dir}/static/man8/${INSTALLABLE_NAME}.8" /usr/local/man/man8
      gzip /usr/local/man/man8/${INSTALLABLE_NAME}.8
    fi
  fi
}

install() {
  printf '%s\n' "Create symbolic link to /usr/local/bin"

  if [[ -e "${_dir}/bin/${INSTALLABLE_NAME}" ]] ; then
    if [[ ! -e "/usr/local/bin/${INSTALLABLE_NAME}" ]] ; then
      ln -s "${_dir}/bin/${INSTALLABLE_NAME}" /usr/local/bin
    fi
  fi

  install_manpage

  printf '%s\n' "DONE"
}

main() {
  check_os
  get_args "$@"
}

main "$@"
exit 0