epm-sh-warmup

#!/bin/sh
#
# Copyright (C) 2017  Etersoft
# Copyright (C) 2017  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_warmup_allowed()
{
    # disable warming up until set warmup in /etc/eepm/eepm.conf
    [ -n "$warmup" ] || return 1

    # disable warm if have no enough memory
    [ "$DISTRMEMORY" -ge 1024 ] && return 0
    warning "Skipping warmup bases due low memory size"
    return 1
}

__warmup_files()
{
    local D="$1"
    shift
    #showcmd "$*"
    [ -n "$D" ] && info "Warming up $D ..."
    # TODO: use progress, calc files size before
    docmd cat $* >/dev/null 2>/dev/null
}

warmup_rpmbase()
{
    is_warmup_allowed || return 0
    __warmup_files "rpm" "/var/lib/rpm/*"
}

warmup_dpkgbase()
{
    is_warmup_allowed || return 0
    __warmup_files "dpkg" "/var/lib/dpkg/*"
}

warmup_lowbase()
{
    case $PKGFORMAT in
        "rpm")
            warmup_rpmbase "$@"
            ;;
        "dpkg")
            warmup_dpkgbase "$@"
            ;;
        *)
            ;;
    esac
}

warmup_aptbase()
{
    is_warmup_allowed || return
    __warmup_files "apt" "/var/lib/apt/lists/* /var/cache/apt/*.bin"
}

warmup_hibase()
{
    case $PMTYPE in
        "apt-rpm"|"apt-dpkg")
            warmup_aptbase "$@"
            ;;
        *)
            ;;
    esac
}

warmup_bases()
{
    DISquiet=1 warmup_lowbase
    DISquiet=1 warmup_hibase
}