forked from ungleich-public/cdist
182 lines
5.2 KiB
Bash
Executable file
182 lines
5.2 KiB
Bash
Executable file
#!/bin/sh
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#
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# 2010-2011 Nico Schottelius (nico-cdist at schottelius.org)
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#
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# This file is part of cdist.
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#
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# cdist is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# cdist is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with cdist. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# Wrapper script that generates cconfig from arguments
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#
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# This script will be called everytime the manifest decides to create
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# a new type
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#
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. cdist-config
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set -u
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################################################################################
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# Prepare object and type
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#
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__cdist_type="$__cdist_myname"
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# Find out whether type is a singleton or regular type
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if [ -f "$(__cdist_type_singleton "$__cdist_type")" ]; then
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__cdist_object_id="$__cdist_name_singleton"
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else
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[ $# -ge 1 ] || __cdist_usage "<id> <options>"
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__cdist_object_id="$1"; shift
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fi
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# Verify object id
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__cdist_object_id_sane=$(echo "$__cdist_object_id" | grep "^${__cdist_sane_regexp}\$")
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if [ -z "$__cdist_object_id_sane" ]; then
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__cdist_usage "Insane object id, ${__cdist_object_id}."
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fi
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# Prevent double slash if id begins with /
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if [ "$(echo $__cdist_object_id | grep "^/")" ]; then
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__cdist_object_self="${__cdist_type}${__cdist_object_id}"
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else
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__cdist_object_self="${__cdist_type}/${__cdist_object_id}"
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fi
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################################################################################
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# Internal quirks
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#
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# Append id for error messages
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__cdist_myname="$__cdist_myname ($__cdist_object_id)"
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################################################################################
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# Create object in tmpdir first
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#
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# Save original destination
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__cdist_out_object_dir_orig="$__cdist_out_object_dir"
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# Store to tmp now
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__cdist_out_object_dir="$__cdist_tmp_dir"
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__cdist_new_object_dir="$(__cdist_object_dir "$__cdist_object_self")"
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# Initialise object
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mkdir -p "${__cdist_new_object_dir}"
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# Record parameter
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__cdist_parameter_dir="$(__cdist_object_parameter_dir "$__cdist_object_self")"
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mkdir -p "${__cdist_parameter_dir}"
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while [ $# -gt 0 ]; do
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opt="$1"; shift
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echo "$opt" | grep -q "^--${__cdist_sane_regexp}\$" || \
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__cdist_usage "Provide sane options"
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opt_file="${opt#--}"
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[ $# -ge 1 ] || __cdist_usage "Missing value for $opt"
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value="$1"; shift
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echo "${value}" > "${__cdist_parameter_dir}/${opt_file}"
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done
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# Record requirements
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# it's fine, if it's not set
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set +u
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for requirement in $require; do
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echo $requirement >> "$(__cdist_object_require "$__cdist_object_self")"
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__cdist_echo info "Recording requirement $requirement"
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done
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set -u
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################################################################################
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# Check newly created object
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#
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#
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# Ensure required parameters are given
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#
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if [ -f "$(__cdist_type_parameter_required "$__cdist_type")" ]; then
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while read required; do
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if [ ! -f "${__cdist_parameter_dir}/${required}" ]; then
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__cdist_usage "Missing required parameter $required"
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fi
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done < "$(__cdist_type_parameter_required "$__cdist_type")"
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fi
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#
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# Ensure that only optional or required parameters are given
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#
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if [ -f "$(__cdist_type_parameter_optional "$__cdist_type")" ]; then
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cat "$(__cdist_type_parameter_optional "$__cdist_type")" > \
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"$__cdist_tmp_file"
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fi
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if [ -f "$(__cdist_type_parameter_required "$__cdist_type")" ]; then
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cat "$(__cdist_type_parameter_required "$__cdist_type")" >> \
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"$__cdist_tmp_file"
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fi
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cd "$__cdist_parameter_dir"
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for parameter in $(ls -1); do
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is_valid=$(grep "^$parameter\$" "$__cdist_tmp_file")
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[ "$is_valid" ] || __cdist_usage "Unknown parameter $parameter"
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done
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################################################################################
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# Merge object
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#
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# Restore original destination
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__cdist_out_object_dir="$__cdist_out_object_dir_orig"
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__cdist_object_dir="$(__cdist_object_dir "$__cdist_object_self")"
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#
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# If the object already exists and is exactly the same, merge it. Otherwise fail.
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#
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if [ -e "${__cdist_object_dir}" ]; then
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# Allow diff to fail
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set +e
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diff -ru "${__cdist_new_object_dir}/${__cdist_name_parameter}" \
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"${__cdist_object_dir}/${__cdist_name_parameter}" \
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> "$__cdist_tmp_file"; ret=$?
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set -e
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if [ "$ret" != 0 ]; then
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# Go to standard error
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exec >&2
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echo "${__cdist_object_self} already exists differently."
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echo "Recorded source(s):"
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__cdist_object_source "${__cdist_object_dir}"
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echo "Differences:"
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cat "$__cdist_tmp_file"
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__cdist_exit_err "Aborting due to object conflict."
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fi
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else
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#
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# Move object into tree:
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# Create full path minus .cdist and move .cdist
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#
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__cdist_new_object_base_dir="$(__cdist_object_base_dir "$__cdist_object_self")"
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mkdir -p "$__cdist_new_object_base_dir"
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mv "$__cdist_new_object_dir" "$__cdist_new_object_base_dir"
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fi
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# Add "I was here message"
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__cdist_object_source_add "${__cdist_object_dir}"
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