#!/bin/bash
#  Copyright (C) 2010  Matias A. Fonzo, <selk@dragora.org>
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.

# Variable de entorno donde se alojan las partes:
BASEDIR=${BASEDIR:-/usr/libexec/pkg}

# Funciones #

# Emulación de `cat':
dog() {
  while read -r ; do
    printf "%s\n" "$REPLY"
  done < "$1"
}

# Función que imprime el archivo de ayuda (de acuerdo a $LANG):
print_help_file() {
  if [[ -r ${BASEDIR}/language/HELP.${LANG} ]]; then
    dog ${BASEDIR}/language/HELP.${LANG}
  elif [[ -r ${BASEDIR}/language/HELP ]]; then
    dog ${BASEDIR}/language/HELP
  fi
}

# Cuerpo #

# Si no hay argumentos, llama a la función print_help_file():
if (( $# == 0 )); then
  print_help_file
  exit 0;
fi

# Corre el archivo si existe y es un ejecutable:
if [[ -x ${BASEDIR}/commands/$1 ]]; then
  "${BASEDIR}/commands/$1" "${@:2}"
else
  print_help_file >&2
  exit 1;
fi