99 lines
2.8 KiB
Bash
Executable File
99 lines
2.8 KiB
Bash
Executable File
#!/bin/sh -e
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# gencode-remote
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#
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# 2020 Matthias Stecher <matthiasstecher at gmx.de>
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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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# Checks the given state of the service and set it to the given
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# state. Optionally, it executes the action if service running.
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# get name of the service
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name="$__object/parameter/name"
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if [ -f "$name" ]; then
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name="$(cat "$name")"
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else
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name="$__object_id"
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fi
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# read current status and parameters
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state="$(cat "$__object/explorer/state")"
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should="$(cat "$__object/parameter/state")"
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# if systemd/service does not exist
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if [ -z "$state" ]; then
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printf "systemd or service '%s' does not exist!\n" "$name" >&2
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exit 1
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fi
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# save the action required
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required_action=""
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# check the state of the service that should be
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if [ "$state" != "$should" ]; then
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# select what to do to get the $should state
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case "$should" in
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running)
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if [ "$state" = "stopped" ]; then required_action="start"; fi
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;;
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stopped)
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if [ "$state" = "running" ]; then required_action="stop"; fi
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;;
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esac
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fi
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# check if the action can be achieved if given
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if [ -f "$__object/parameter/action" ] \
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&& [ -z "$required_action" ] && [ "$state" = "running" ]; then
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# there must be an action
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action="$(cat "$__object/parameter/action")"
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# select the action to the required element
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case "$action" in
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restart)
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required_action="restart"
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;;
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reload)
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required_action="reload"
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;;
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*)
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printf "action '%s' does not exist!" "$action" >&2
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exit 2
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esac
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# Make a special check: only do this action if a dependency did something
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# it is required that the dependencies write there action to $__messages_in
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if [ -f "$__object/parameter/if-required" ]; then
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# exit here if there are no changes from the dependencies affected (nothing to do)
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if ! grep -q -f "$__object/require" "$__messages_in"; then exit 0; fi
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fi
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fi
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# print the execution command if a action given
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if [ -n "$required_action" ]; then
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# also print it as message
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echo "$required_action" >> "$__messages_out"
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echo "systemctl $required_action '$name'"
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fi
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