cdist/bin/cdist-type-emulator

#!/bin/sh
#
# 2010-2011 Nico Schottelius (nico-cdist at schottelius.org)
#
# This file is part of cdist.
#
# cdist 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.
#
# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
#
# 
# Wrapper script that generates cconfig from arguments
#
# This script will be called everytime the manifest decides to create
# a new type
#

. cdist-config
set -eu

__cdist_type="$__cdist_myname"

# Find out whether type is a singleton or regular type
if [ -f "$(__cdist_type_singleton "$__cdist_type")" ]; then
   __cdist_object_id="singleton"
else
   [ $# -ge 1 ] || __cdist_usage "<id> <options>"
   __cdist_object_id="$1"; shift
fi

echo "$__cdist_object_id" | grep -q "^${__cdist_sane_regexp}\$" || \
   __cdist_usage "Insane object id, ${__cdist_object_id}."

__cdist_object="${__cdist_type}/${__cdist_object_id}"
__cdist_ddir="$(__cdist_object_dir "$__cdist_object")"
__cdist_parameter_dir="$(__cdist_object_parameter_dir "$__cdist_object")"

# Append id for error messages
__cdist_myname="$__cdist_myname ($__cdist_object_id)"

if [ -e "${__cdist_ddir}" ]; then
   source="$(__cdist_object_source "${__cdist_ddir}")"
   __cdist_exit_err "${__cdist_object} already exists (source: $source)"
fi

mkdir -p "${__cdist_ddir}"
mkdir -p "${__cdist_parameter_dir}"

# Record (correct ;-) source
echo "${__cdist_manifest}" > "${__cdist_ddir}/${__cdist_name_object_source}"

# Record parameters to tmpdir
tempparameter="${__cdist_tmp_dir}/${__cdist_name_parameter}"
mkdir -p "$tempparameter"

while [ $# -gt 0 ]; do
   opt="$1"; shift

   echo "$opt" | grep -q "^--${__cdist_sane_regexp}\$" || \
      __cdist_usage "Provide sane options"

   opt_file="$(echo $opt | sed 's/^--//')"

   [ $# -ge 1 ] || __cdist_usage "Missing value for $opt"

   value="$1"; shift

   echo "${value}" > "${tempparameter}/${opt_file}"
done

# Ensure required parameters are given
if [ -f "$(__cdist_type_parameter_required "$__cdist_type")" ]; then
   while read required; do
      if [ ! -f "${tempparameter}/${required}" ]; then
         __cdist_usage "Missing required parameter $required"
      fi

      mv "${tempparameter}/${required}" "${__cdist_parameter_dir}"
   done < "$(__cdist_type_parameter_required "$__cdist_type")"
fi

# Allow optional parameters
if [ -f "$(__cdist_type_parameter_optional "$__cdist_type")" ]; then
   while read optional; do
      if [ -f "${tempparameter}/${optional}" ]; then
         mv "${tempparameter}/${optional}" "${__cdist_parameter_dir}"
      fi
   done < "$(__cdist_type_parameter_optional "$__cdist_type")"
fi

# Error out on other paramaters
cd "${tempparameter}"
other="$(ls)"

if [ "$other" ]; then
   __cdist_usage "Unsupported parameter: $other"
fi

# Record requirements
# it's fine, if it's not set
set +u
for requirement in $require; do
   echo $requirement >> "$(__cdist_object_require "$__cdist_object")"
   echo Recording: $__cdist_object requires $requirement
done