#!/bin/bash
#
# Common template vars and functions/procedures
#
#  Copyright (C) 2012  Mike Gerwitz
#
#  This file is part of repo2html.
#
#  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/>.
# #

# default template path (the former is exported so that templates themselves may
# make use of default templates)
declare -xr path_default_tpl=./tpl
declare -xr path_tpl="${1:-$path_default_tpl}"

resolv-template()
{
  name="$1"
  [ -x "$path_tpl/$name" ] \
    && echo "$path_tpl/$name" \
    || echo "$path_default_tpl/$name"
}
apply-template()
{
  $( resolv-template "$1" )
}
exec-template()
{
  exec $( resolv-template "$1" )
}

# allows custom templates to invoke the default template (say, to set/override
# options)
resume-default()
{
  exec "$path_default_tpl/$1"
}

export -f resolv-template apply-template exec-template resume-default