Comparing file size/hash and downloading different versions with the same name?

[kendrakirai]

Is there any chance of adding this option, so that an item has been edited or replaced since the last download, the new version can be downloaded without overwriting the original? All I've got right now is to download the entire thing in a different directory and run a separate hash check on everything.

I know it'd add a LOT of time to the download, but having it work inline would still be a massive time (and space) saver versus using a separate program. on two largely identical copies of a download. Even if it only compared the file's size and downloaded another copy if the sizes are different it would be a huge benefit.

[mikf]

A compare post processor should be able to do this. It will have to re-download each file to do a comparison though. The other "downsides" are that you need to

• have skip set to false
• have downloader.part enabled (default)
• include {extension} in your filename format string (default)

{
    "extractor": {
        "skip": false,
        "postprocessors": {
            "name": "compare",
            "action": "enumerate"
        }
    }
}