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#!/bin/bash
#   Copyright (c) 2013 by Luke Shumaker <lukeshu@sbcglobal.net>
#
#   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 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/>.

# make sure XDG_CACHE_HOME is set
. /usr/share/libretools/conf.sh

blacklist-normalize() {
	sed -e 's/^[^:]*$/&::/' -e 's/^[^:]*:[^:]*$/&:/'
}

blacklist-cat() {
	local file="$XDG_CACHE_HOME/libretools/blacklist.txt"
	if ! [[ -e $file ]]; then
		blacklist-update
	fi
	blacklist-normalize < "$file"
}

blacklist-update() (
	set -euE
	. libremessages
	load_files libretools
	check_vars BLACKLIST

	local remote_blacklist="$BLACKLIST"
	local local_blacklist="$XDG_CACHE_HOME/libretools/blacklist.txt"

	stat_busy "Downloading blacklist of proprietary software packages"

	mkdir -p "${local_blacklist%/*}"
	if wget -N -q -O "${local_blacklist}.part" "$remote_blacklist" 2>/dev/null; then
		stat_done
		mv "${local_blacklist}.part" "$local_blacklist"
	else
		stat_done
		rm "${local_blacklist}.part"
		if [[ -e "$local_blacklist" ]]; then
			warning "Using local copy of blacklist"
		else
			error "Download failed, exiting"
			return 1
		fi

	fi
)

blacklist-lookup() {
	local pkg=$1
	blacklist-cat | sed 's/^/^/' | grep -F "^$pkg:" | sed 's/^^//'
}

blacklist-get-pkg() {
	cut -d: -f1
}

blacklist-get-rep() {
	cut -d: -f2
}

blacklist-get-reason() {
	cut -d: -f3-
}