#!/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/>.
#
#
# FIXME: Replace * references: * breaks if there is no explorer
# or FIXME: check that there is at least one explorer?
#


. cdist-config
if [ $# -lt 5 ]; then
   __cdist_usage "<target host> <local srcdir> <local dstdir> <remote srcdir> <remote dstdir> [explorer args]"
fi
set -ue

__cdist_target_host="$1"; shift

__cdist_local_src_dir="$1"; shift
__cdist_local_dst_dir="$1"; shift
__cdist_remote_src_dir="$1"; shift
__cdist_remote_dst_dir="$1"; shift

# Create remote source and destination directory
ssh "${__cdist_remote_user}@${__cdist_target_host}"   \
      "mkdir -p   \"${__cdist_remote_src_dir}\"       \
                  \"${__cdist_remote_dst_dir}\""

# Ensure local destination directory exists
mkdir -p "$__cdist_local_dst_dir"

# FIXME: enable -q as soon as the code is cleaned up
cd "${__cdist_local_src_dir}"

# Ensure there is at least one explorer
num="$(ls -1 | wc -l)"
if [ "$num" -lt 1 ]; then
   __cdist_exit_err "${__cdist_local_src_dir}: Contains no explorers"
fi

# Copy all explorers to remote source directory
scp * "${__cdist_remote_user}@${__cdist_target_host}:${__cdist_remote_src_dir}"

# Execute all explorers
for explorer in *; do
   if [ -f "$explorer" ]; then
      if [ ! -x "$explorer" ]; then
         echo "Explorer \"$explorer\" exists, but is not executable."
         continue
      fi

      # Execute explorers and save results in remote destination directory
      ssh "${__cdist_remote_user}@${__cdist_target_host}" \
          "cd \"${__cdist_remote_src_dir}\" && \"./$explorer\" > \
          \"${__cdist_remote_dst_dir}/${explorer}\"" "$@"
   else
      if [ -e "$explorer" ]; then
         echo "Explorer \"$explorer\" exists, but is not a file."
         continue
      fi
   fi
done

# Copy results back to us
scp "${__cdist_remote_user}@${__cdist_target_host}:${__cdist_remote_dst_dir}/*" \
    "$__cdist_local_dst_dir"