Automatic retrying for downloads

[Bangulli]

Please describe the feature

I noticed that the download sometimes fails for arbitrary networking reasons like "unexpected end of file". When retrying, for me at least, they didnt reappear. I wrapped the download command into a short python script that retries if an error occurs with an updated download file list. (It compares a txt of to download files with the actual data present on disk, if there are duplicates they get removed from the file, since the -continue flag doesnt save much time.)

It would be useful if the automatic retrying was integrated into the program itself, since especially for large datasets noticing that such an error occured and that the download terminated costs a lot of time.

Task

Add retry-loop to the sda-cli download command.

Estimation of size: small

Estimation of priority: low

[viklund]

Thank you for the feedback, we're looking into how to fix this.