NBash

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#!/bin/sh
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#
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# Copyright (C) 2012-2020  Etersoft
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# Copyright (C) 2012-2020  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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epm_install_files_apt_dpkg()
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{
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    local files="$*"
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    [ -z "$files" ] && return
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    # the new version of the conf. file is installed with a .dpkg-dist suffix
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    if [ -n "$non_interactive" ] ; then
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        DPKGOPTIONS="--force-confdef --force-confold"
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    fi
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    if __epm_repack_if_needed $files ; then
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        [ -n "$repacked_pkgs" ] || fatal "Can't convert $files"
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        files="$repacked_pkgs"
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    fi
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    if [ -n "$save_only" ] ; then
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        echo
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        cp -v $files "$EPMCURDIR"
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        return
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    fi
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    if [ -n "$put_to_repo" ] ; then
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        load_helper epm-repopkg
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        epm_put_to_repo $files
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        return
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    fi
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    # TODO: if dpkg can't install due missed deps, trying with apt (as for now, --refuse-depends, --refuse-breaks don't help me)
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    if [ -n "$nodeps" ] ; then
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        sudocmd dpkg $DPKGOPTIONS -i $files
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        return
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    fi
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    # for too old apt-get
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    # TODO: check apt-get version?
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    apt_can_install_files='1'
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    if [ "$DISTRNAME" = "Ubuntu" ] ; then
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        [ "$DISTRVERSION" = "14.04" ] && apt_can_install_files=''
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        [ "$DISTRVERSION" = "12.04" ] && apt_can_install_files=''
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    fi
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    if [ -n "$apt_can_install_files" ] ; then
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        # TODO: don't resolve fuzzy dependencies ()
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        # are there apt that don't support dpkg files to install?
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        epm_install_names $(make_filepath $files)
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        return
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    fi
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    # old way:
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    sudocmd dpkg $DPKGOPTIONS -i $files
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    local RES=$?
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    # return OK if all is OK
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    [ "$RES" = "0" ] && return $RES
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    # TODO: workaround with epm-check needed only for very old apt
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    # run apt -f install if there are were some errors during install
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    load_helper epm-check
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    epm_check
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    # repeat install for get correct status
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    sudocmd dpkg $DPKGOPTIONS -i $files
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}
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