#!/bin/sh -e
# __debian_backports/manifest
#
# 2020 Matthias Stecher (matthiasstecher at gmx.de)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
# Enables/disables backports repository. Utilies __apt_source for it.
#


# detect backport distribution
os="$(cat "$__global/explorer/os")"
case "$os" in
    debian)
        # distribution codename from /etc/os-release
        # lsb_release may not be given in all debian installations
        dist="$(
            # shellcheck disable=SC1090
            . "$__global/explorer/os-release"
            printf "%s" "$VERSION_CODENAME"
        )"
        ;;
    *)
        printf "Backports for %s are not supported!\n" "$os" >&2
        exit 1
        ;;
esac

# error if no codename given (e.g. on Debian unstable)
if [ -z "$dist" ]; then
    printf "No backports for unkown version of distribution %s!\n" "$os" >&2
    exit 1
fi


# parameters
state="$(cat "$__object/parameter/state")"
mirror="$(cat "$__object/parameter/mirror")"

# install the given backports repository
__apt_source "${dist}-backports" \
    --state "$state" \
    --distribution "${dist}-backports" \
    --component main \
    --uri "$mirror"