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#!/bin/bash
# pkgbuild-check-licenses
# Copyright 2010 Haase Hernández
# Copyright 2010 Joseph Graham
# Copyright 2010 Joshua Ismael
# Copyright 2010 Nicolás Reynolds
# Copyright 2012-2013 Luke Shumaker
#
# 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/>.
. libremessages
# Unset any PKGBUILD variables inherited from the environment
# I took these from makepkg 4.1.1-1
unset pkgname pkgbase pkgver pkgrel epoch pkgdesc url license groups provides
unset md5sums replaces depends conflicts backup source install changelog build
unset makedepends optdepends options noextract
# Usage: check_deps $pkgbuild
# Check whether a PKGBUILD package depends on non-free packages
check_licenses() (
# Note that we use () instead of {} for this function; so that variables
# from the PKBUILD don't bubble up
local pkgbuild=$1
. "$pkgbuild"
if [[ -z $pkgname ]]; then
return $_E_ERROR # not a PKGBUILD
fi
if [[ -z "${license[*]}" ]]; then
error "license array of ${pkgbase:-${pkgname[0]}} $(get_full_version) is not set"
return $_E_ERROR
fi
msg2 "Looking at license array of ${pkgbase:-${pkgname[0]}} $(get_full_version)"
local ret=$_E_OK
for _license in "${license[@]}"; do
if [[ ! -e "/usr/share/licenses/common/$_license" ]]; then
local s=$_E_OK
case "${_license#custom:}" in
WTFPL)
# accept as common, I think it should be in the licenses package
:;;
BSD1|BSD2|BSD3|MIT|X11)
# accept these as common; they can't be included in the
# 'licenses' package because some text must be customized
:;;
BSD4)
warning "The 4-clause BSD license is free but has practical problems.";;
BSD)
warning "License 'BSD' is ambiguous, use 'BSD{1..4}' to specify the number of clauses."
s=$_E_UNCOMMON
;;
JSON)
error "License '%s' is a known non-free license." "$_license"
s=$_E_NONFREE
;;
*)
warning "License '%s' is not a common license." "$_license"
s=$_E_UNCOMMON
;;
esac
ret=$(($ret|$s))
fi
done
return $ret
)
cmd=${0##*/}
usage() {
echo "Usage: $cmd [OPTIONS] [PKGBUILD1 PKGBUILD2 ...]"
echo ''
echo "If no PKGBUILD is specified, \`./PKGBUILD' is implied"
echo ''
echo "Exit status (add them for combinations):"
echo " 0: Everything OK, no freedom issues"
echo " 1: Ran with error"
echo " 2: Uses uncommon licenses, check them"
echo " 4: Uses known unacceptable licenses"
echo ''
echo "Options:"
echo ' -f Allow running as root user'
echo ' -h Show this message'
}
_E_OK=0
_E_ERROR=1
_E_UNCOMMON=2
_E_NONFREE=4
main() {
local asroot=false
while getopts 'fh' arg; do
case "$arg" in
f) asroot=true;;
h) usage; return $_E_OK;;
*) usage; return $_E_ERROR;;
esac
done
shift $(($OPTIND - 1))
if [[ $# -lt 1 ]]; then
pkgbuilds=("`pwd`/PKGBUILD")
else
pkgbuilds=("$@")
fi
if [[ -w / ]] && ! $asroot; then
error "Run as normal user, or use the -f option to run as root."
return 1
fi
local ret=0
for pkgbuild in "${pkgbuilds[@]}"; do
check_licenses "$pkgbuild" || ret=$(($ret|$?))
done
return $ret
}
main "$@"
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