Darktable homebrew formula

darktable.rb

class Darktable < Formula
  desc 'Photography workflow application and raw developer'
  homepage 'https://www.darktable.org/'
  url 'https://github.com/darktable-org/darktable/releases/download/release-2.2.4/darktable-2.2.4.tar.xz'
  version '2.2.4'
  sha256 'bd5445d6b81fc3288fb07362870e24bb0b5378cacad2c6e6602e32de676bf9d8'

  needs :openmp

  depends_on 'cmake'    => :build
  depends_on 'intltool' => :build
  depends_on 'jpeg'
  depends_on 'desktop-file-utils'
  depends_on 'exiv2'
  depends_on 'flickcurl'
  depends_on 'gcc'
  depends_on 'gettext'
  depends_on 'glib'
  depends_on 'gphoto2'
  depends_on 'graphicsmagick'
  depends_on 'gtk+3'
  depends_on 'gtk-mac-integration'
  depends_on 'json-glib'
  depends_on 'lensfun'
  depends_on 'librsvg'
  depends_on 'libsecret'
  depends_on 'libsoup'
  depends_on 'little-cms2'
  depends_on 'llvm'
  depends_on 'lua'
  depends_on 'ninja'
  depends_on 'openexr'
  depends_on 'openjpeg'
  depends_on 'osm-gps-map'
  depends_on 'pugixml'

  fails_with gcc: 6

  def install
    mkdir 'build' do
      system 'cmake', '..', *std_cmake_args
      system 'make'
      system 'make', 'install'
    end
  end

  test do
    require 'open-uri'

    ohai 'Downloading image'
    File.open(testpath/'image.dng', 'wb') do |fo|
      fo.write open('https://raw.pixls.us/getfile.php/1033/nice/Adobe%20DNG%20Converter%20-%20Canon%20EOS%205D%20Mark%20III%20-%20Lossy%20JPEG%20compression,%20rgb%20(3:2).DNG').read
    end

    ohai 'Converting raw to jpeg'
    system bin/'darktable-cli', 'image.dng', '-o', 'image.jpg'
    assert File.size?('image.jpg')
  end
end