Merge pull request #4587 from reitermarkus/ditto

Use `ditto` instead of `unzip`.

Library/Homebrew/extend/os/mac/unpack_strategy/zip.rb

@@ -0,0 +1,9 @@
+module UnpackStrategy
+  class Zip
+    def extract_to_dir(unpack_dir, basename:, verbose:)
+      # `ditto` keeps Finder attributes intact and does not skip volume labels
+      # like `unzip` does, which can prevent disk images from being unzipped.
+      system_command! "ditto", args: ["-x", "-k", path, unpack_dir]
+    end
+  end
+end

Library/Homebrew/unpack_strategy/zip.rb

@@ -20,3 +20,5 @@ module UnpackStrategy
     end
   end
 end
+
+require "extend/os/mac/unpack_strategy/zip" if OS.mac?