mrbgem.rake

MRuby::Gem::Specification.new('mruby-termkey') do |spec|
  spec.license = 'MIT'
  spec.authors = 'masahino'

  def self.run_command(env, command)
    fail "#{command} failed" unless system(env, command)
  end

  def spec.download_libtermkey
    require 'open-uri'
    libtermkey_url = "http://www.leonerd.org.uk/code/libtermkey/libtermkey-0.22.tar.gz"
    libtermkey_build_root = "#{build_dir}/libtermkey/"
    libtermkey_dir = "#{libtermkey_build_root}/libtermkey-0.22"
    libtermkey_a = "#{libtermkey_dir}/libtermkey.a"
    termkey_h = "#{libtermkey_dir}/termkey.h"

    file termkey_h do
      URI.open(libtermkey_url) do |http|
        libtermkey_tar = http.read
        FileUtils.mkdir_p libtermkey_build_root
        IO.popen("tar xfz - -C #{filename libtermkey_build_root}", 'wb') do |f|
          f.write libtermkey_tar
        end
      end
      if RUBY_PLATFORM.downcase =~ /msys|mingw/ ||
        (build.kind_of?(MRuby::CrossBuild) && ['x86_64-w64-mingw32'].include?(build.host_target))
        Dir.chdir(libtermkey_dir) do
          sh %{patch -N -p1 < #{dir}/libtermkey-0.22.patch}
        end
      end
    end

    file libtermkey_a => termkey_h do
      Dir.chdir(libtermkey_dir) do
        if build.kind_of?(MRuby::CrossBuild) && ['x86_64-w64-mingw32'].include?(build.host_target)
          build.cc.flags << '-DHAVE_UNIBILIUM'
        end
        e = {
          'CC' => "#{build.cc.command} #{build.cc.flags.join(' ')}",
          'CXX' => "#{build.cxx.command} #{build.cxx.flags.join(' ')}",
          'LD' => "#{build.linker.command} #{build.linker.flags.join(' ')}",
          'AR' => build.archiver.command
        }
        if build.kind_of?(MRuby::CrossBuild) &&
          %w(x86_64-apple-darwin14 x86_64-apple-darwin19 x86_64-w64-mingw32 arm-linux-gnueabihf).include?(build.host_target)
          run_command e, 'make termkey.o'
          run_command e, 'make driver-csi.o'
          run_command e, 'make driver-ti.o'
          #          sh %Q{(cd #{filename libtermkey_dir} && CC=#{build.cc.command} CFLAGS="-DHAVE_UNIBILIUM" make termkey.o)}
          #          sh %Q{(cd #{filename libtermkey_dir} && CC=#{build.cc.command} make driver-csi.o)}
          #          sh %Q{(cd #{filename libtermkey_dir} && CC=#{build.cc.command} make driver-ti.o)}
          sh %Q{(cd #{filename libtermkey_dir} && #{build.archiver.command} cru libtermkey.a termkey.o driver-csi.o driver-ti.o)}
          sh %Q{(cd #{filename libtermkey_dir} && #{build.host_target}-ranlib libtermkey.a)}
        else
          run_command e, 'make libtermkey.la'
          sh %Q{cp .libs/libtermkey.a ./libtermkey.a}
        end
      end
    end

    task :mrb_termkey_with_compile_option do
      linker.flags_before_libraries << libtermkey_a
      linker.libraries.delete 'termkey'
      [cc, cxx, objc, mruby.cc, mruby.cxx, mruby.objc].each do |cc|
        cc.include_paths << libtermkey_dir
      end
      if RUBY_PLATFORM.downcase =~ /msys|mingw/ ||
        (build.kind_of?(MRuby::CrossBuild) && %w(x86_64-w64-mingw32).include?(build.host_target))
        linker.libraries << 'unibilium'
      else
        linker.libraries << 'ncurses'
      end
    end

    file "#{dir}/src/mrb_termkey.c" => [:mrb_termkey_with_compile_option, libtermkey_a]
  end

  if spec.build.cc.search_header_path('termkey.h')
    spec.linker.libraries << 'termkey'
  else
    spec.download_libtermkey
  end
end