#!/bin/sh
#
# Copyright (C) 2014, 2015  Etersoft
# Copyright (C) 2014, 2015  Vitaly Lipatov <lav@etersoft.ru>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#

__is_repo_info_downloaded()
{
    case $PMTYPE in
        apt-*)
            if [ -r /var/cache/apt ] ; then
                $SUDO test -r /var/cache/apt/pkgcache.bin || return
            fi
            ;;
        *)
            ;;
    esac
    return 0
}

__is_repo_info_uptodate()
{
    case $PMTYPE in
        apt-rpm)
            # apt-deb do not update lock file date
            if $SUDO test -r /var/lib/apt/lists ; then
                local LOCKFILE=/var/lib/apt/lists/lock
                $SUDO test -r $LOCKFILE || return
                # if repo older than 1 day, return false
                # find print string if file is obsoleted
                test -z "$($SUDO find $LOCKFILE -mtime +1)" || return
            fi
            ;;
        *)
            ;;
    esac
    return 0
}

update_repo_if_needed()
{
    # check if we need skip update checking
    if [ "$1" = "soft" ] && [ -n "$SUDO" ] ; then
        # if sudo requires a password, skip autoupdate
        sudo -n true 2>/dev/null || { info "sudo requires a password, skip repo status checking" ; return 0 ; }
    fi

    cd /
    if ! __is_repo_info_downloaded || ! __is_repo_info_uptodate ; then
        load_helper epm-update
        pkg_filenames= epm_update
    fi
    cd - >/dev/null

}