cdist/core/__cdist_explorer_run

#!/bin/sh
#
# 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/>.
#
#
# This binary is executed on the remote side to execute explorers
# 
# It supports different variables names to be used, so __explorers
# and __type_explorers can be submitted :-)
#

__cdist_explorer_run()
{
   [ $# -eq 3 ] || __cdist_usage "<variable name> <explorer dir> <out dir>"

   "$__cdist_name_var_object=\"$(__cdist_remote_object_dir "$__cdist_object_self")\""

   # Variable that defines the home of the explorers
   __cdist_variable_name="$1"; shift

   # Find explorers here
   __cdist_explorer_dir="$1"; shift

   # Write output here
   __cdist_my_out_dir="$1"; shift

   # Setup environment
   export $__cdist_variable_name="$__cdist_explorer_dir"
   export __global="$__cdist_remote_out_dir"

   mkdir -p "$__cdist_my_out_dir"

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

   # Execute all explorers
   for explorer in "$__cdist_explorer_dir/"*; do
      explorer_name="${explorer##*/}"

      if [ -f "$explorer" ]; then
         if [ ! -x "$explorer" ]; then
            __cdist_exit_err "Explorer \"$explorer\" exists, but is not executable."
         fi

         # Execute explorers and save results in remote destination directory
         "$explorer" > "${__cdist_my_out_dir}/$explorer_name"
      else
         if [ -e "$explorer" ]; then
            __cdist_exit_err "Explorer \"$explorer\" exists, but is not a file."
         fi
      fi
   done
}