Download file using partial download (HTTP)

Question

Is there a way to download huge and still growing file over HTTP using the partial-download feature?

It seems that this code downloads file from scratch every time i

Answer 1

If I understand your question correctly, the file is not changing during download, but is updated regularly. If that is the question, rsync is the answer.

If the file is being updated continually including during download, you'll need to modify rsync or a bittorrent program. They split files into separate chunks and download or update the chunks independently. When you get to the end of the file from the first iteration, repeat to get the appended chunk; continue as necessary. With less efficiency, one could just repeatedly rsync.