#!/bin/sh
#
# 2010 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/>.
#
# 
# For each created object
# run the manifest of the type (with object id),
# try to merge back newly created objects (otherwise fail),
# mark the object as being run
# and iterate until all objects are marked being run.
#
#
#

. cdist-config

if [ $# -ne 2 ]; then
   __cdist_usage "<outdir> <object_dir>"
fi

set -eu

__cdist_output_dir="$1"; shift
__cdist_object_dir="$1"; shift

# change to directory containing objects
cd "$__cdist_object_dir"

# Loop until we do not create new objects anymore
# which is equal to all objects have been run
__cdist_object_created_new=1


while [ "$__cdist_object_created_new" = 1 ]; do
   # assume we're done after this run
   __cdist_object_created_new=0

   # find all objects (every object has the source recorded)
   find . -name "$__cdist_object_source" |   \
      sed -e "s;$__cdist_object_source\$;;"  \
          -e 's;^./;;'                       \
      > "$__cdist_tmp_file"

   cat "$__cdist_tmp_file"

   while read object; do
      if [ ! -f "${object}/$__cdist_object_finished" ]; then
         echo "Running object ${object} ..."

         manifest="${object}/${__cdist_name_init}"
         if [ -x "${manifest}" ]; then
            cdist-manifest-run "${manifest}" "${__cdist_tmp_dir}"

            echo "Merging stuff back..."
            # FIXME: continue here
            # tar, cp, pax?
            # - copy if not existing
            # fail (abort whole recursive run) if existing
            # 
            # iterate over all new objects and copy each back?

         else
            # Be nice, warn user if manifests exists, but is not executable
            if [ -f "${manifest}" ]; then
               echo "Warning ${manifest} is not executable"
            fi
         fi

         touch "${object}/$__cdist_object_finished"

         # At least one more run needed
         __cdist_object_created_new=1
      fi
   done < "$__cdist_tmp_file"

done

exit 0