I've started using butler to automate build uploads.
One issue I've faced with OSX builds (for my Unity game), is that when I zip them myself on Windows, the +x (executable flag) is missing when they are unzipped by the user on OSX.
To fix this, I need to actually download them on OSX, zip them there (the OSX zipper preserves the flag properly) and then reupload them.
Just curious if butler might handle this case for me - which would be really handy!