#!/usr/bin/env ruby
# Copyright 2007, Lloyd Hilaiel.
# 
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# 
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
# 
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in
#     the documentation and/or other materials provided with the
#     distribution.
# 
#  3. Neither the name of Lloyd Hilaiel nor the names of its
#     contributors may be used to endorse or promote products derived
#     from this software without specific prior written permission.
# 
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

require 'fileutils'
require 'optparse'

prefix = "/usr/local"
options = {}
OptionParser.new do |opts|
  opts.banner = "Usage: configure [options]"
  opts.on("-p", "--prefix PATH", "Set installation prefix") do |p|
    prefix = p
  end
  opts.on_tail("-h", "--help", "Output usage summary") do 
    puts opts
    exit
  end

  opts.parse!(ARGV)
end

puts "== removing old build files"
FileUtils.rm_rf("build")
FileUtils.rm_f("Makefile")
puts "== running CMake in build directory"
FileUtils.mkdir("build")
FileUtils.cd("build") do 
  if (!system("cmake .."))
    puts "The \"cmake\" program is required to configure yajl.  It's"
    puts "available from most ports/packaging systems and http://cmake.org"
    exit 1
  end
end

# now generate a Makefile
puts "== Generating Makefile"
File.open("Makefile", "w+") do |f| 
  f.puts ".PHONY: all clean distclean install package test distro"
  f.puts "all: distro doc test"
  f.puts
  f.puts "distro:"
  f.puts "	@cd build && make"
  f.puts
  f.puts "doc:"
  f.puts "	@cd build && make doc"
  f.puts
  f.puts "test:"
  f.puts "	@cd build && make test"
  f.puts
  f.puts "clean:"  
  f.puts "	@cd build && make clean"
  f.puts
  f.puts "distclean:"  
  f.puts "	@rm -rf Makefile build"
  f.puts "	@rm -f yajl-*.tgz"
  f.puts
  f.puts "install: all" 
  f.puts "	@cd build && make install"
  f.puts
  f.puts "package: all"
  f.puts "	@echo \"compressing to `basename build/yajl-*`.tgz\""
  f.puts "	@cd build && tar czf ../`basename yajl-*`.tgz yajl-*"
end

puts "== Configured with installation prefix: #{prefix}"