Periodic tasks

The renewals command is intended to be run as part of an automated script run at least once a day. It will

• recognize revenue for past periods (see ledger).

• extends active subscriptions

• create charges for new periods

• trigger expiration notices

Every functions part of the renewals script are explicitly written to be idempotent. Calling the scripts multiple times for the same timestamp (i.e. with the --at-time command line argument) will generate the appropriate Transaction and Charge only once.

Example cron setup:

$ cat /etc/cron.daily/renewals
#!/bin/sh

cd /var/*mysite* && python manage.py renewals