123 lines
3.2 KiB
Bash
Executable File
123 lines
3.2 KiB
Bash
Executable File
#!/bin/sh -e
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#
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# 2020 Dennis Camera (dennis.camera@ssrq-sds-fds.ch)
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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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grep_line() { echo "$2" | grep -qxF "$1"; }
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unquote_lines() {
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sed -e '/^".*"$/{s/^"//;s/"$//}' \
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-e '/'"^'.*'"'$/{s/'"^'"'//;s/'"'$"'//}'
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}
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append_values() {
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while read -r _value
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do
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set -- "$@" --value "${_value}"
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done
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unset _value
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"$@" </dev/null
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}
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section=$(cat "${__object:?}/explorer/match")
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state_should=$(cat "${__object:?}/parameter/state")
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transaction_name=$(cat "${__object:?}/parameter/transaction")
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case $state_should
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in
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(present)
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test -f "${__object:?}/parameter/type" || {
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echo 'Parameter --type is required.' >&2
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exit 1
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}
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type_is=$(cat "${__object:?}/explorer/type")
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type_should=$(cat "${__object:?}/parameter/type")
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if test -f "${__object:?}/parameter/option"
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then
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optnames_should=$(
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sed -e 's/=.*$//' "${__object:?}/parameter/option" | sort -u)
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fi
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if test -n "${type_is}"
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then
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if test "${type_is}" != "${type_should##*.}"
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then
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# Check if section type matches (section exists and --type provided)
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printf 'Section type "%s" does not match --type "%s".\n' \
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"${type_is}" "${type_should}" >&2
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exit 1
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fi
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sect_type=${type_is}
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else
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sect_type=${type_should##*.}
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fi
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if test -z "${section}"
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then
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# No section exists and --match was used.
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# So we generate a new section identifier from $__object_id.
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case ${__object_id:?}
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in
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(*.*) section=${__object_id:?} ;;
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(*) section="${type_should%%.*}.${__object_id:?}" ;;
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esac
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fi
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# Make sure the section itself is present
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__uci "${section}" --state present --transaction "${transaction_name}" \
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--value "${sect_type}"
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export require=__uci/"${section}"
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# Delete options not in "should"
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sed -e 's/=.*$//;s/^.*\.//' "${__object:?}/explorer/options" \
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| while read -r optname
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do
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if ! grep_line "${optname}" "${optnames_should}"
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then
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__uci "${section}.${optname}" --state absent \
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--transaction "${transaction_name}" </dev/null
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fi
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done
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# Set "should" options
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echo "${optnames_should}" \
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| while read -r optname
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do
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test -n "${optname}" || continue # ignore empty lines
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grep "^${optname}=" <"${__object:?}/parameter/option" \
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| sed -e 's/^.*=//' \
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| unquote_lines \
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| append_values \
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__uci "${section}.${optname}" --state present \
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--transaction "${transaction_name}"
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done
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;;
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(absent)
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# if explorer found no section there is nothing to delete
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test -n "${section}" || exit 0
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__uci "${section}" --state absent --transaction "${transaction_name}"
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;;
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(*)
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printf 'Invalid --state: %s\n' "${state_should}" >&2
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exit 1
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;;
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esac
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