NBash

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#!/bin/sh
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#
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# Copyright (C) 2020, 2022, 2023  Etersoft
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# Copyright (C) 2020, 2022, 2023  Vitaly Lipatov <lav@etersoft.ru>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# TODO: move to a common place and use
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__is_wildcard()
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{
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    echo "$1" | grep -q "[*?]"
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}
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__alt_mark_hold_package()
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{
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        local pkg="$1"
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        showcmd "echo \"RPM::Hold {\"^$pkg\";};\" > /etc/apt/apt.conf.d/hold-$pkg.conf"
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        echo "RPM::Hold {\"^$pkg\";};" | sudorun tee "/etc/apt/apt.conf.d/hold-$pkg.conf" >/dev/null
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}
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__alt_test_glob()
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{
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    echo "$*" | grep -q "\.[*?]" && warning "Only glob symbols * and ? are supported. Don't use regexp here!"
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}
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__alt_mark_hold()
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{
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    # TODO: do more long checking via apt
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    local pkg
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    local i
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    __alt_test_glob "$*"
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    for i in "$@" ; do
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        if __is_wildcard "$i" ; then
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            local pkglist
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            pkglist="$(epm qp --short "^$i")" || continue
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            for pkg in $pkglist ; do
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                __alt_mark_hold_package $pkg
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            done
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            return
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        else
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            pkg="$(epm query --short "$i")" || continue
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        fi
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        __alt_mark_hold_package $pkg
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    done
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}
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__alt_mark_unhold()
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{
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    # TODO: do more long checking via apt
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    local pkg
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    local i
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    __alt_test_glob "$*"
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    for i in "$@" ; do
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        pkg="$(epm query --short "$i")" || pkg="$i"
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        sudocmd rm -fv /etc/apt/apt.conf.d/hold-$pkg.conf
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    done
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}
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__alt_mark_showhold()
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{
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    grep -h "RPM::Hold" /etc/apt/apt.conf.d/hold-*.conf 2>/dev/null | sed -e 's|RPM::Hold {"^\(.*\)";};|\1|'
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}
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__dnf_assure_versionlock()
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{
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    epm assure /etc/dnf/plugins/versionlock.conf 'dnf-command(versionlock)'
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}
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__dnf_is_supported_versionlock()
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{
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    [ -f /etc/dnf/plugins/versionlock.conf ]
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}
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epm_mark_hold()
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{
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case $BASEDISTRNAME in
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    "alt")
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        __alt_mark_hold "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        sudocmd apt-mark hold "$@"
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        ;;
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    dnf-rpm)
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        __dnf_assure_versionlock
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        sudocmd dnf versionlock add "$@"
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        ;;
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    zypper-rpm)
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        sudocmd zypper al "$@"
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        ;;
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    emerge)
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        info "Check /etc/portage/package.mask"
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        ;;
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    pacman)
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        info "Manually: edit /etc/pacman.conf modifying IgnorePkg array"
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_unhold()
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{
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case $BASEDISTRNAME in
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    "alt")
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        __alt_mark_unhold "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        sudocmd apt-mark unhold "$@"
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        ;;
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    dnf-rpm)
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        __dnf_assure_versionlock
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        sudocmd dnf versionlock delete "$@"
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        ;;
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    zypper-rpm)
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        sudocmd zypper rl "$@"
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        ;;
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    emerge)
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        info "Check /etc/portage/package.mask (package.unmask)"
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        ;;
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    pacman)
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        info "Manually: edit /etc/pacman.conf removing package from IgnorePkg line"
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_showhold()
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{
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case $BASEDISTRNAME in
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    "alt")
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        __alt_mark_showhold "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        docmd apt-mark showhold "$@"
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        ;;
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    dnf-rpm)
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        # there is no hold entries without versionlock
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        __dnf_is_supported_versionlock || return 0
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        __dnf_assure_versionlock
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        if [ -n "$short" ] ; then
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            load_helper epm-query
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            docmd dnf versionlock list "$@" | sed -e 's|\.\*$||' | grep -v " " | filter_pkgnames_to_short
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        else
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            docmd dnf versionlock list "$@"
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        fi
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        ;;
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    zypper-rpm)
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        docmd zypper ll "$@"
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        ;;
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    emerge)
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        cat /etc/portage/package.mask
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        ;;
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    pacman)
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        cat /etc/pacman.conf
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_checkhold()
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{
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# workaround against epm assure questions
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case $PMTYPE in
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    dnf-rpm)
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        # there is no hold entries without versionlock
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        __dnf_is_supported_versionlock || return 1
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        __dnf_assure_versionlock
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        load_helper epm-query
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        docmd dnf versionlock list | grep "^$1" | sed -e 's|\.\*$||' | grep -v " " | filter_pkgnames_to_short | grep -q "^$1$"
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        return
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        ;;
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esac
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epm_mark_showhold | grep -q "^$1$"
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}
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epm_mark_auto()
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{
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case $BASEDISTRNAME in
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    "alt")
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        sudocmd apt-mark auto "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        sudocmd apt-mark auto "$@"
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        ;;
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    dnf-rpm)
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        sudocmd dnf mark remove "$@"
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        ;;
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    pacman)
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            sudocmd pacman -D --asdeps "$@"
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        ;;
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    emerge)
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            sudocmd emerge --oneshot "$@"
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_manual()
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{
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case $BASEDISTRNAME in
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    "alt")
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        sudocmd apt-mark manual "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        sudocmd apt-mark manual "$@"
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        ;;
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    dnf-rpm)
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        sudocmd dnf mark install "$@"
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        ;;
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    pacman)
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            sudocmd pacman -D --asexplicit "$@"
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        ;;
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    emerge)
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            sudocmd emerge --select "$@"
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_showauto()
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{
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case $BASEDISTRNAME in
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    "alt")
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        sudocmd apt-mark showauto "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        sudocmd apt-mark showauto "$@"
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        ;;
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    dnf-rpm)
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        sudocmd dnf repoquery --unneeded
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_showmanual()
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{
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case $BASEDISTRNAME in
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    "alt")
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        sudocmd apt-mark showmanual "$@"
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        exit
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        ;;
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esac
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case $PMTYPE in
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    apt-dpkg)
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        sudocmd apt-mark showmanual "$@"
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        ;;
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    dnf-rpm)
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        sudocmd dnf repoquery --userinstalled
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        ;;
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    *)
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        fatal "Have no suitable command for $PMTYPE"
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        ;;
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esac
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}
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epm_mark_help()
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{
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    echo "mark is the interface for marking packages"
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            get_help HELPCMD $SHAREDIR/epm-mark
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    cat <<EOF
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Examples:
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  epm mark hold mc
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  epm manual mc
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EOF
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}
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epm_mark()
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{
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    local CMD="$1"
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    [ -n "$CMD" ] && shift
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    case "$CMD" in
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    ""|"-h"|"--help"|help)               # HELPCMD: help
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        epm_mark_help
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        ;;
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    hold)                             # HELPCMD: mark the given package(s) as held back
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        epm_mark_hold "$@"
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        ;;
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    unhold)                           # HELPCMD: unset the given package(s) as held back
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        epm_mark_unhold "$@"
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        ;;
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    showhold)                         # HELPCMD: print the list of packages on hold
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        epm_mark_showhold "$@"
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        ;;
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    checkhold)                         # HELPCMD: return true if the package is on hold
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        epm_mark_checkhold "$@"
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        ;;
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    auto)                             # HELPCMD: mark the given package(s) as automatically installed
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        epm_mark_auto "$@"
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        ;;
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    manual)                           # HELPCMD: mark the given package(s) as manually installed
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        epm_mark_manual "$@"
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        ;;
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    showauto)                         # HELPCMD: print the list of automatically installed packages
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        epm_mark_showauto "$@"
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        ;;
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    showmanual)                       # HELPCMD: print the list of manually installed packages
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        epm_mark_showmanual "$@"
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        ;;
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    *)
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        fatal "Unknown command $ epm repo '$CMD'"
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        ;;
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esac
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}
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