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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (c) 2023 Petr Vorel <pvorel@suse.cz>
# Confirm before proceeding, otherwise exit.
ask()
{
local msg="$1"
local answer
printf "\n%s. Proceed? [N/y]: " "$msg"
read -r answer
case "$answer" in
[Yy]*) : ;;
*) exit 2
esac
}
# Print error message and exit.
quit()
{
printf "\n%s\n" "$*" >&2
exit 1
}
# Check if commands are available, exit on first not found.
require_cmd()
{
local cmd
for cmd in "$@"; do
if ! command -v "$cmd" >/dev/null 2>&1; then
quit "'$cmd' not found"
fi
done
}
# "Run or die". Run command and print failing command and exit on failure.
rod()
{
"$@" || quit "$* failed"
}
# Print a header.
title()
{
echo "===== $1 ====="
}
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