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#!/bin/bash
#  pkgbuild-check-nonfree
#  Copyright 2010 Joshua Ismael Haase Hernández, Joseph Graham

#  ---------- GNU General Public License 3 ----------
                                                                             
#  This file is part of Parabola.                                          
                                                                             
#  Parabola 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.                                     
                                                                             
#  Parabola 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 Parabola.  If not, see <http://www.gnu.org/licenses/>.       

source /etc/libretools.conf
[[ -f $XDG_CONFIG_HOME/libretools/libretools.conf ]] && \
    source $XDG_CONFIG_HOME/libretools/libretools.conf

mkdir -p $XDG_CONFIG_HOME/libretools
pushd $XDG_CONFIG_HOME/libretools/ >/dev/null

# This is the exit status.
ev=0

# Check if the blacklist variable is empty, and if so error.
[[ ${#BLACKLIST} -eq 0 ]] && {
    error "BLACKLIST variable is not set your libretools.conf file"
    exit 1
}

# Download the blacklist.
msg "Downloading the blacklist of proprietary software packages."
wget -N -q -O blacklist.txt "${BLACKLIST}" 2>/dev/null || {
    error "Download failed, exiting"
    [ -e $XDG_CONFIG_HOME/libretools/blacklist.txt ] || exit 1
}

# Get everything before the `:' in the blacklist (that's the names of the
# packages).
unfree=($(cut -d: -f1 blacklist.txt))
freerep=($(cut -d: -f2 blacklist.txt))

popd >/dev/null

source /etc/rc.d/functions # We want the `in_array' function.
source ./PKGBUILD

# The following piece of code will check whether a package is, or depends on;
# any non free package(s).

# The `pkgname', `depends', `makedepends' arrays have been sourced from
# ./PKGBUILD.
msg "Looking for unfree dependencies"
for item in ${pkgname[@]} ${depends[@]} ${makedepends[@]} ; do
# We cycle through all of the programs in the array (if any), and check if
# they are in the `unfree' array.
    if in_array $item ${unfree[@]} ; then
# If the package has a replacement of the same name, skip
        if in_array $item ${freerep[@]} ; then
            warning "$item is repackaged with the same name."
            ev=0
            continue
# if item has a free replacement, use error 16.
        elif in_array $item-libre ${freerep[@]} ; then
            warning "$item -> $item-libre"
            ev=16
        else
            ev=15
            msg2 "found $item"
        fi
    fi
done

exit $ev