Add opera package and alien dependency (#3706)

Add pre-built binaries

packages/alien.rb

+require 'package'
+
+class Alien < Package
+  description 'This program converts linux packages between the rpm, deb, tgz and slp packages.'
+  homepage 'https://sourceforge.net/projects/alien-pkg-convert/'
+  version '8.95'
+  source_url 'https://downloads.sourceforge.net/project/alien-pkg-convert/release/alien_8.95.tar.xz'
+  source_sha256 '37a22587c33810feab323474bdadbf969fda2eb4e720b2ca01b40d82d6f71a17'
+
+  binary_url ({
+    aarch64: 'https://dl.bintray.com/chromebrew/chromebrew/alien-8.95-chromeos-armv7l.tar.xz',
+     armv7l: 'https://dl.bintray.com/chromebrew/chromebrew/alien-8.95-chromeos-armv7l.tar.xz',
+       i686: 'https://dl.bintray.com/chromebrew/chromebrew/alien-8.95-chromeos-i686.tar.xz',
+     x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/alien-8.95-chromeos-x86_64.tar.xz',
+  })
+  binary_sha256 ({
+    aarch64: '81431f3b524332343a63bfc4d81a7d26d699de468d4d1001fa71490d50ecfe7a',
+     armv7l: '81431f3b524332343a63bfc4d81a7d26d699de468d4d1001fa71490d50ecfe7a',
+       i686: 'de538bab2f24de717daf5acfd25bcfb4b88ec19c77fb35bf5202e82583d8425e',
+     x86_64: 'afce6bceff55c145665ce49f8f0c1199b67252eda478312c7d0db042c1fcfde9',
+  })
+
+  def self.build
+    system 'perl Makefile.PL'
+    system 'make'
+  end
+
+  def self.install
+    system 'make', "PREFIX=#{CREW_PREFIX}", "DESTDIR=#{CREW_DEST_DIR}", 'install'
+  end
+end

packages/opera.rb

+require 'package'
+
+class Opera < Package
+  description "Opera isn't just a browser. It's an awesome browser."
+  homepage 'https://www.opera.com/'
+  version '65.0.3467.69'
+  case ARCH
+  when 'x86_64'
+    source_url 'file:///dev/null'
+    source_sha256 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855'
+  end
+
+  binary_url ({
+    x86_64: 'https://dl.bintray.com/chromebrew/chromebrew/opera-65.0.3467.69-chromeos-x86_64.tar.xz'
+  })
+  binary_sha256 ({
+    x86_64: '3c9d6056db24f8c6250c7dd382e82e7bb8758678ceb6877630457b0edb730cb1'
+  })
+
+  depends_on 'alien' => :build
+  depends_on 'gtk3'
+  depends_on 'sommelier'
+
+  def self.build
+    system "wget https://get.geo.opera.com/pub/opera/desktop/#{version}/linux/opera-stable_#{version}_amd64.deb"
+    abort 'Checksum mismatch. :/ Try again.'.lightred unless Digest::SHA256.hexdigest( File.read("opera-stable_#{version}_amd64.deb") ) == '337af6edaa5394f914dd4e5228e75c1f3ddc1f87564f13a3c5df44fff7487026'
+    system "alien -t -c opera-stable_#{version}_amd64.deb"
+    system "tar xvf opera-stable-#{version}.tgz"
+  end
+
+  def self.install
+    FileUtils.mkdir_p "#{CREW_DEST_PREFIX}"
+    FileUtils.mv 'usr/bin', "#{CREW_DEST_PREFIX}"
+    FileUtils.mv 'usr/lib', "#{CREW_DEST_PREFIX}"
+    FileUtils.mv 'usr/share', "#{CREW_DEST_PREFIX}"
+  end
+end