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#!/usr/bin/env ruby
#
# Copyright (c) 2007-2014, Lloyd Hilaiel <me@lloyd.io>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 -DCMAKE_INSTALL_PREFIX='#{prefix}' .."))
    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}"