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#!/bin/bash -e
# Copyright © Sébastien Luttringer
#
# 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 2
# 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
LOCKFILE=~/."${0##*/}".lock
REPOS=/srv/ftp/archlinux/archive/repos
BASE=/srv/ftp/archlinux/archive/packages
PKGFLAT=.all
[[ $1 != "" && ${1:0:1} != / ]] && { echo 'Absolute path please, ln is bugged'; exit 1; }
# we lock!
exec 9> "$LOCKFILE"
flock -n 9 || { echo 'Locking Failed' >&2; exit 1; }
[[ -t 1 ]] && set -x
# nice umask
umask 022
# ensure dirs are here
[[ -e $BASE/$PKGFLAT ]] || mkdir -p "$BASE/$PKGFLAT"
find -L "$BASE" -type l -delete -print
# create new links pass
find ${1:-$REPOS} -type f -name '*.pkg.tar.xz' -o -name '*.pkg.tar.xz.sig'| while read src; do
filename="${src##*/}"
pkgname="${filename%-*}" #remove arch and extension
pkgname="${pkgname%-*}" #remove pkgrel
pkgname="${pkgname%-*}" #remove pkgver
first="${pkgname:0:1}"
parent="$BASE/${first,,}/$pkgname"
# destination in tree
tdst="$parent/$filename"
# destination in flat dir
fdst="$BASE/$PKGFLAT/$filename"
# ensure pkgtree parent dir is present
[[ -d "$parent" ]] || mkdir -v -p "$parent"
# copy file if necessary
if [[ "$src" -nt "$tdst" ]]; then
# remove is necessary to be done and not use -f in ln
# because this create buggy relative symlink in some case.
# there is fix around this in next coreutils
[[ -e "$tdst" ]] && rm -f -v "$tdst"
# don't use harlink, to be able to easily remove package by date
# removing a directory by date, will remove symlink in the clean pass
ln -v -r -s "$src" "$tdst"
fi
if [[ "$src" -nt "$fdst" ]]; then
[[ -e "$fdst" ]] && rm -f -v "$fdst"
ln -v -r -s "$src" "$fdst"
fi
done
# disallow listing of PKGFLAT. Too much file
echo 'No listing allowed here.' > "$BASE/$PKGFLAT/index.html"