Prevent corrupted data for GTF-files

[renewiegandt]

If the pipeline stops on an error before the download for the GTF-file is finished files get corrupted and not the full dataset is downloaded.
The current fix is to delete the data folder and to restart the script.

Possible solutions:

• delete data automatically on error
• compare checksum of files

[renewiegandt]

Option 3: Nextflow has the option to select scripts which will be finished even after an error occurs while running a different script.
process ... {
errorStrategy 'finish'
}

[renewiegandt]

errorStategy 'finish' is implemented but I am not sure if it does what its supposed to do.
More tests need to be done.