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

if [ -f "$type" ]; then
    type="$(cat "$type")"
else
    # By default determine package manager based on operating system
    os="$(cat "$__global/explorer/os")"
    case "$os" in
        amazon|scientific|centos|fedora|redhat) type="yum" ;;
        debian|ubuntu|devuan) type="apt" ;;
        archlinux) type="pacman" ;;
        *)
            echo "Don't know how to manage packages on: $os" >&2
            exit 1
            ;;
    esac
fi

if [ -n "$maxage" ] && [ "$type" != "apt" ]; then
    echo "ERROR: \"--maxage\" only supported for \"apt\" pkg-manager." >&2
    exit 1
fi

case "$type" in
    yum) ;;
    apt) if [ -n "$maxage" ]; then
             ## check if we need to update:
             if [ $currage -ge $maxage ]; then
                echo "apt-get --quiet update"
                echo "apt-cache updated (age was: $currage)" >> "$__messages_out"
             fi
         else
                echo "apt-get --quiet update"
                echo "apt-cache updated (age was: $currage)" >> "$__messages_out"
         fi
         ;;
    pacman) echo "pacman --noprogressbar --sync --refresh" ;;
    *)
        echo "Don't know how to manage packages on: $os" >&2
        exit 1
        ;;
esac