#!/bin/sh

# Copyright (c) 2023, Salvatore Mesoraca <s.mesoraca16@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

# This script is not supposed to correctly emulate
# kwriteconf output format.
# It only tries to emulate its behaviour from the
# point of view of the Ansible module.
# Which is: write something that depends on the arguments
# to the output file, unless we already wrote that before.

set -e

args=""
prev_was_file=0
for var in "$@"; do
    if [ $prev_was_file -eq 1 ]; then
        fname="$var"
        prev_was_file=0
    else
        args="$args $var"
    fi
    if [ "$var" = "--file" ]; then
        prev_was_file=1
    fi
done

if [ "x$fname" = "x" ]; then
    exit 1
fi

if [ -e "$fname" ]; then
    grep -qF "$args" "$fname" && exit 0
fi

echo "$args" >> "$fname"