#!/usr/bin/env ruby

# This tool is LGPLv3 licensed.
# Run license_gen_lgpl YelloSoft 2009
# See lgpl.txt for details.

# == Synopsis
#
# license_gen_lgpl: Generates LGPLv3 notices based on The GNU Lesser General Public License:
#
# http://www.fsf.org/licensing/licenses/gpl.html
#
# Include a copy of the actual LGPL license with your software.
#
# == Usage
#
# license_gen_lgpl owners year [margin]
#
# Owners:
#    The copyright owners.
# Year:
#    The copyright year.
# Margin:
#    The width of the copyright message.

require "time"

# From ttscoff's wrap_text()
# http://snipplr.com/view/1081/wrap-text/
class String
	def wrap(margin=80)
		gsub(/(.{1,#{margin}})( +|$\n?)|(.{1,#{margin}})/, "\\1\\3\n")
	end
end

def gen(owners="The Free Software Foundation", year=Time.now.year, margin=80)
	return "Copyright (C) #{year} #{owners}

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.".wrap(margin)
end

def main
	owners="The Free Software Foundation"
	year="2007"
	margin=80

	owners=ARGV[0] unless ARGV.length<1
	year=ARGV[1] unless ARGV.length<2
	margin=ARGV[2] unless ARGV.length<3

	puts gen(owners, year, margin)
end

if __FILE__==$0
	main
end