Delete generated files as soon as server (nginx) streaming ends

[benoitbryon]

Scenario:

• generate a file with Django (as an example, some ZIP file)
• save it to disk
• let server stream it (X-Accel for nginx)
• remove the file when it's done

Is it possible to do it with django-downloadview?

Is it recommended to do it with django-downloadview? i.e. should Django stream file contents directly and write nothing to disk? Maybe there are 2 cases: when the file can be generated with some iterator (as a CSV file) VS when the file is generated in a single operation (as a zip archive).

Another use case: file is stored in a storage that nginx can't access. Django could copy file to a temporary location and let nginx serve it. Or maybe the best practice is: "allow nginx to access file storage directly".

=> at least add documentation
=> if a smart solution can be implemented, add it to django-downloadview

[benoitbryon]

See http://www.linuxbyexamples.net/2012/08/Nginx-post-action-to-trigger-successfully-download-file.html and http://wiki.nginx.org/HttpCoreModule#post_action