# -*- ruby -*-

require 'pathname'
require 'find'
require 'rubygems'
require 'rake/extensiontask'

@top_dir = Pathname(__FILE__).dirname.parent.expand_path
@rb_glib2_dir = @top_dir + "glib2"

task :default => :build

def version
  @version ||= ENV["VERSION"] || guess_version
end

def guess_version
  versions = {}
  rbglib_h_path = @rb_glib2_dir + "ext" + "glib2" + "rbglib.h"
  rbglib_h_path.open do |rbglib_h|
    rbglib_h.each_line do |line|
      if /#define\s+RBGLIB_([A-Z]+)_VERSION\s+(\d+)/ =~ line
        versions[$1.downcase] = $2.to_i
      end
    end
  end
  ["major", "minor", "micro"].collect {|type| versions[type]}.compact.join(".")
end

package_name = "gdk_pixbuf2"

spec = Gem::Specification.new do |s|
  s.name = package_name
  s.summary = "Ruby/GdkPixbuf2 is a Ruby binding of GdkPixbuf-2.x."
  s.description = "Ruby/GdkPixbuf2 is a Ruby binding of GdkPixbuf-2.x."
  s.author = "The Ruby-GNOME2 Proejct Team"
  s.email = "ruby-gnome2-devel-en@lists.sourceforge.net"
  s.homepage = "http://ruby-gnome2.sourceforge.jp/"
  s.version = version
  s.platform = Gem::Platform::RUBY
  compatible_version = version.split(/\./)[0, 3].join(".")
  s.add_dependency("glib2", ">= #{compatible_version}")
  s.extensions = FileList["ext/#{package_name}/extconf.rb"]
  s.require_paths = ["lib"]
  s.files = FileList["ChangeLog", "README", "Rakefile", "extconf.rb",
                     "lib/**/*.rb", "{ext,sample,test}/**/*"]
end

Rake::GemPackageTask.new(spec) do |pkg|
end

Rake::ExtensionTask.new(package_name, spec) do |ext|
  ext.cross_compile = true
  ext.cross_compiling do |spec|
    if /mingw|mswin/ =~ spec.platform.to_s
      win32_dir = File.join("vendor", "local")
      win32_files = []
      Find.find(win32_dir) do |file|
        next if /\.zip\z/ =~ file
        win32_files << file
      end
      spec.files += win32_files
    end
  end
end

namespace :win32 do
  desc "download Windows binaries"
  task :download do
    $LOAD_PATH.unshift((@rb_glib2_dir + "lib").to_s)
    require 'gnome2-win32-binary-downloader'
    packages = ["glib", "gdk-pixbuf"]
    dependencies = ["gettext-runtime", "zlib", "libpng"]
    GNOME2Win32BinaryDownloader.download(:packages => packages,
                                         :dependencies => dependencies)
  end
end