Rakefile

require 'rake/clean'
require 'rake/testtask'

STAGE_DIR = '.stage'

CLEAN.include '*.o'
CLEAN.include '*.so'
CLEAN.include STAGE_DIR

EXTCONF_LIST = FileList['ext/**/extconf.rb'].map{|x| x.sub(%r!^ext/!, '') }

desc "build all extension libraries"
task :build_extensions do |t|
  EXTCONF_LIST.each do |extconf|
    dir = File.dirname(extconf)
    Dir.chdir(File.join('ext', dir)) do
      system 'ruby extconf.rb'
      system 'make'
    end
  end
end

desc "stage all extension libraries"
task :stage_extensions => [ :build_extensions ] do |t|
  EXTCONF_LIST.each do |extconf|
    libname = File.basename(File.dirname(extconf))
    libpath = File.join(File.dirname(extconf), libname + '.so')
    stage_extension(libpath)
  end
end

def stage_extension(libpath, stage_dir=STAGE_DIR)
  target_dir = File.join(stage_dir, File.dirname(libpath))
  FileUtils.mkdir_p target_dir
  FileUtils.cp File.join('ext', libpath), target_dir
end

task :test => [ :stage_extensions ]
Rake::TestTask.new :test do |t|
  t.libs += ['test', STAGE_DIR]
  t.test_files = FileList['test/test*.rb']
  t.verbose = true
end