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#! /bin/bash
# Copyright (C) 2014 Joseph Graham <joseph@t67.eu>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This script depends on `mktorrent'
username=$( id -un )
case "${username}" in
repo | root )
true
;;
* )
echo "This script must be run as repo user or root user."
echo "ByeBye!"
exit 1
;;
esac
# pacman doesn't support multiple different packages of the same name,
# so it's OK to just stuff all the torrents into a single directory.
torrent_location='/srv/http/repo/public/torrents/'
public_location='/srv/http/repo/public/'
# Tracker announce URL
tracker='http://t67.eu:6969/announce' # t67.eu is run by Xylon
# All mirrors go here
declare -a array=('http://repo.parabolagnulinux.org/' 'https://parabola.goodgnus.com.ar/' 'http://mirror.yandex.ru/mirrors/parabola/' 'http://alfplayer.com/parabola/' 'http://mirror.parlementum.net/')
# I got this function from http://mywiki.wooledge.org/BashFAQ/026 . It
# shuffles an array. Uses a global array variable. Must be compact
# (not a sparse array). The array must be called `array'.
shuffle() {
local i tmp size max rand
# $RANDOM % (i+1) is biased because of the limited range of $RANDOM
# Compensate by using a range which is a multiple of the array size.
size=${#array[*]}
max=$(( 32768 / size * size ))
for ((i=size-1; i>0; i--)); do
while (( (rand=$RANDOM) >= max )); do :; done
rand=$(( rand % (i+1) ))
tmp=${array[i]} array[i]=${array[rand]} array[rand]=$tmp
done
}
cd "${torrent_location}"
find "${public_location}" -name 'os' -type 'd' |
while read dir
do
find "${dir}" -name '*\.pkg\.tar\.xz' |
while read pkg
do
pkg_name="${pkg##*/}"
if [[ -h "${pkg}" ]] # check if it's a symbolic link
then
# We get the target of the symlink
pkg=$( readlink -f "${pkg}" )
fi
if ! [[ -f "${torrent_location}${pkg_name}.torrent" ]]
then
# We need to make a comma seperated list of webseeds (this is passed
# as a single argument to mktorrent)
webseeds=''
# Randomize the order of the list of webseeds because I
# don't know if transmission might always use the one at
# the top otherwize.
shuffle
for prefix in "${array[@]}"
do
webseeds+="${prefix}${pkg#${public_location}},"
done
# There should not be a random comma at the end of the webseeds
webseeds="${webseeds%,}"
mktorrent -a "${tracker}" "${pkg}" -w "${webseeds}" # "${torrent_location}"
fi
done
done
if [[ "${username}" == root ]]
then
chown repo *
fi
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