#!/usr/bin/env bash
#
# This script serves only to verify that the OS is a supported
# version, before we attempt to rely on that version in
# upgrade-zulip-stage-3

if [ -f /etc/os-release ]; then
    os_info="$(
        . /etc/os-release
        printf '%s\n' "$ID" "$VERSION_ID"
    )"
    {
        read -r os_id
        read -r os_version_id
    } <<<"$os_info"
fi

case "$os_id $os_version_id" in
    'debian 12' | 'ubuntu 22.04' | 'ubuntu 24.04')
        exit 0
        ;;
    *)
        exit 1
        ;;
esac