#! /bin/bash
###########################################################################
# GLUED: GNU/Linux Uniform Environment Distribution                       #
# Copyright (C) 2007-2019 Universidade do Porto - Faculdade de Engenharia #
# Laboratório de Sistemas e Tecnologia Subaquática (LSTS)                 #
###########################################################################
# 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.                                                         #
###########################################################################

if [ -f 'functions.bash' ]; then
    DST='downloads'
    PKGS='rules'
    source 'functions.bash'
elif [ -f '../functions.bash' ]; then
    DST='../downloads'
    PKGS='../rules'
    source '../functions.bash'
else
    echo "ERROR: unable to find functions.bash."
    exit 1
fi

mkdir -p "$DST"

find "$PKGS" -name '*.bash' | while read file; do
    url=()
    PKG_COMMON="$(dirname "$file")/common.bash"
    source "$file" 2> /dev/null
    n=0; while [ -n "${url[$n]}" ]; do
        m="${md5[$n]}"
        u="${url[$n]}"
        f="$DST/$(basename $u)"
        fh="$(md5sum "$f" 2> /dev/null | cut -f1 -d' ')"
        if [ "$fh" != "$m" ]; then
            nfo1 "Downloading $f"
            echo ""
            wget \
                --timeout=30 \
                --tries 1 \
                -P "$DST" -4 -c "$u"
            echo ""
        fi
        let n++
    done
done