Added last-modified comparison and --exclude glob syntax #31
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…sync. Traditional rsync looks for equality in last-modified. Since we only have time uploaded to work with, this implementation opts to preserve the more recent copy, similar to rsync --update. I think this is relatively intuitive for uploads, but it could be problematic for downloads if the user is trying to "restore" as opposed to "get up to date" - I'm figuring in the case of the former it's easier to delete the local copy and try again than to recover inadvertently overwriting a file. This also implements a --size-only option like rsync's which can overcome the potential pitfall above.
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Attempt at implementing last-modified check. It's slightly different than rsync's default "quick check" because (in my testing at least) this turned out to be the time uploaded rather than preserving the actual file meta data as you'd get rsyncing to a more traditional file system.
--excludebased on PR from Dave Lane. I believe the updated style is more like actual rsync behavior.I'm aware this script maybe isn't being maintained right now, but thought these updates might be useful to someone anyway.