lvpn

#!/usr/bin/env bash
# Wrapper para correr los comandos al estilo `git comando parametros`
# Hay que crearlos en libdir/lvpn-comando

# ENV
# Tomar las variables de entorno (por ejemplo de un archivo de configuración
# o de la shell) o usar directorios locales
TINC=${TINC:-/etc/tinc/lvpn}
NETWORK="$(basename "${TINC}")"
LVPN="$(readlink -f $0)"
LVPN_DIR="${LVPN_DIR:-$(dirname "$LVPN")}"
LVPN_BIN="${LVPN_BIN:-${LVPN_DIR}/bin}"
LVPN_LIBDIR="${LVPN_LIBDIR:-${LVPN_DIR}/lib}"
LVPN_HOSTS="${LVPN_HOSTS:-${LVPN_DIR}/hosts}"
LVPN_BEADLE="${LVPN_HOSTS:-${LVPN_DIR}/beadle}"
KEYSIZE=${KEYSIZE:-4096}
# Flags para 
TINCD_FLAGS="${TINCD_FLAGS:-"--logfile -U nobody"}"
PORT=${PORT:-655}

# Subnets
LVPN_SUBNET="${LVPN_SUBNET:-192.168.9.0/24}"
LVPN_SUBNET6="${LVPN_SUBNET6:-2001:1291:200:83ab::/64}"

# Para gettext
TEXTDOMAINDIR=${TEXTDOMAINDIR:-"/usr/share/locale"}
TEXTDOMAIN="$(basename "${LVPN}")"

export TINC NETWORK LVPN \
       LVPN_DIR LVPN_LIBDIR LVPN_HOSTS LVPN_BIN \
       KEYSIZE TEXTDOMAINDIR TEXTDOMAIN \
       LVPN_SUBNET LVPN_SUBNET6 TINCD_FLAGS PORT

. "${LVPN_LIBDIR}/common"

list_commands() {
  pushd "${LVPN_LIBDIR}" &>/dev/null

  echo lvpn-* | tr " " "\n" | sed "s/^lvpn-//"

  popd &>/dev/null
}

while getopts "hc" arg; do
    case $arg in
        h) help lvpn ; exit 0;;
        c) list_commands ; exit 0;;
    esac
done
let OPTIND--; shift ${OPTIND}

test -z "$1" && help lvpn && exit 0

# El comando
command=$1; shift

# Chequear si el comando existe
if [ ! -x "${LVPN_LIBDIR}/lvpn-${command}" ]; then
    fatal_error "%s no existe, tal vez te gustaría implementarlo :D" ${command}
fi

# Correr el comando
exec ${LVPN_LIBDIR}/lvpn-${command} $@

exit $?