#!/bin/sh -e
#
# 2014 Ricardo Catalinas Jiménez (jimenezrick at gmail.com)
#
# 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/>.
#
#
# Update the package index with the appropriate package manager
#

type=$(cat "$__object/explorer/type")
currage="$(cat "$__object/explorer/currage")"
if [ -f "$__object/parameter/maxage" ]; then
    maxage="$(cat "$__object/parameter/maxage")"
fi

if [ -n "$maxage" ]; then
    if [ "$type" != "apt" ] && [ "$type" != "pacman" ]; then
        echo "ERROR: \"--maxage\" only supported for \"apt\" or \"pacman\" pkg-manager." >&2
        exit 1
    # do not exit if no value found (represented as -1)
    elif [ "$currage" -ne -1 ] && [ "$currage" -lt "$maxage" ]; then
        exit 0 # no need to update
    fi
fi


case "$type" in
    yum) ;;
    apt)
        # There are special arguments to apt(8) to prevent aborts if apt woudn't been
        # updated after the 19th April 2021 till the bullseye release. The additional
        # arguments acknoledge the happend suite change (the apt(8) update does the
        # same by itself).
        #
        # Using '-o $config' instead of the --allow-releaseinfo-change-* parameter
        # allows backward compatablility to pre-buster Debian versions.
        #
        # See more: ticket #861
        # https://code.ungleich.ch/ungleich-public/cdist/-/issues/861
        apt_opts="-o Acquire::AllowReleaseInfoChange::Suite=true -o Acquire::AllowReleaseInfoChange::Version=true"

        echo "apt-get --quiet $apt_opts update"
        echo "apt-cache updated (age was: $currage)" >> "$__messages_out"
        ;;
    pacman)
        echo "pacman --noprogressbar --sync --refresh"
        echo "pacman package database synced (age was: $currage)" >> "$__messages_out"
        ;;
    apk)
        echo "apk update"
        echo "apk package database updated." >>"$__messages_out"
        ;;
    *)
        echo "Don't know how to manage packages for type: $type" >&2
        exit 1
        ;;
esac