Change crew and lib/package.rb to support sha256. Currently crew check either sha256 or sha1.

crew

@@ -363,12 +363,16 @@ def download
   filename = File.basename(uri.path)
   if source
     sha1sum = @pkg.source_sha1
+    sha256sum = @pkg.source_sha256
   else
     sha1sum = @pkg.binary_sha1[@device[:architecture]]
+    sha256sum = @pkg.binary_sha256[@device[:architecture]]
   end
   Dir.chdir CREW_BREW_DIR do
     system('wget', '--continue', '--no-check-certificate', url, '-O', filename)
-    abort 'Checksum mismatch. :/ Try again.'.lightred unless Digest::SHA1.hexdigest( File.read("./#{filename}") ) == sha1sum
+    abort 'Checksum mismatch. :/ Try again.'.lightred unless
+      Digest::SHA1.hexdigest( File.read("./#{filename}") ) == sha1sum or
+      Digest::SHA256.hexdigest( File.read("./#{filename}") ) == sha256sum
   end
   puts "Archive downloaded".lightgreen
   return {source: source, filename: filename}
@@ -658,6 +662,7 @@ def archive_package (pwd)
   end
   Dir.chdir pwd do
     system "sha1sum #{pkg_name} > #{pkg_name}.sha1"
+    system "sha256sum #{pkg_name} > #{pkg_name}.sha256"
   end
   puts "#{pkg_name} is built!".lightgreen
 end

lib/package.rb

 require 'package_helpers'
 
 class Package
-  property :description, :homepage, :version, :binary_url, :binary_sha1, :source_url, :source_sha1, :is_fake
+  property :description, :homepage, :version, :binary_url, :binary_sha1, :binary_sha256, :source_url, :source_sha1, :source_sha256, :is_fake
 
   class << self
     attr_reader :is_fake