epm-sh-altlinux

#!/bin/sh
#
# Copyright (C) 2014, 2017  Etersoft
# Copyright (C) 2014, 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/>.
#

# apt-file like. See also
# https://bugzilla.altlinux.org/show_bug.cgi?id=14449

# convert "http://download.etersoft.ru/pub/ALTLinux/p8/branch x86_64" to /tmp/epm/ALTLinux/p8/branch/x86_64
get_local_alt_mirror_path()
{
    local DN1=$(dirname "$1")
    local DN2=$(dirname $DN1)

    local BN0=$(basename "$1") # arch
    local BN1=$(basename $DN1) # branch/Sisyphus
    local BN2=$(basename $DN2)

    [ "$BN1" = "branch" ] && echo "/tmp/eepm/$BN2/$BN1/$BN0" || echo "/tmp/eepm/$BN1/$BN0"
}

# args: url target_file
# result: will set FILE
download_alt_contents_index()
{
    local TD="$2"
    local OFILE="$TD/$(basename "$1")"
    local DONE="$TD/done.$(basename "$1")"
    # TODO: check if too old
    if [ -r "$DONE" ] ; then
        return
    fi

    mkdir -p "$TD"

    docmd eget -O "$OFILE" "$1" || return
    # plain file by default
    echo "" >$DONE

    # try compress
    if epm assure lz4 ; then
        docmd lz4 --rm "$OFILE" "$OFILE.lz4" || return
        echo "lz4" >$DONE
    else
        epm assure xz || return
        docmd xz "$ofile" || return
        echo "xz" >$DONE
    fi
}

get_local_alt_contents_index()
{
    load_helper epm-repolist

    # print out from local mirror
    epm_repolist | grep "rpm.*file:/" | sed -e "s|^rpm.*file:||g" | while read LOCALPATH ARCH other ; do
        test -d "$LOCALPATH/$ARCH" || continue
        FILE="$LOCALPATH/$ARCH/base/contents_index"
        if [ -r "$FILE" ] ; then
            echo "$FILE"
        else
            info "TODO for girar server: There is no $(basename $FILE) file in $(dirname $FILE)"
        fi
    done

    # print out from mirrored contents_index
    epm_repolist | grep -E "rpm[[:space:]]*(ftp|http|https)://" | sed -e "s@^rpm.*\(ftp\|http\|https://\)@\1@g" | while read URL ARCH other ; do
        LOCALPATH=$(get_local_alt_mirror_path "$URL/$ARCH")
        download_alt_contents_index $URL/$ARCH/base/contents_index $LOCALPATH
        echo "$LOCALPATH/contents_index*"
    done

}