Summary:
We need to run things less often than once a day, so adding support for
days to taskcluster cron. 'day' is the day of the month, 'weekday' is used
as a datetime.weekday (not isoweekday), or a string comparable to strftime('%A')
or strftime('%a')
Reviewers: dustin
Reviewed By: dustin
Bug #: 1453067
Differential Revision: https://phabricator.services.mozilla.com/D903
This adds `.cron.yml` and a new mach command to interpret it. While
functionality is limited to nightlies right now, there is room to expand to
more diverse periodic tasks. Let your imagination run wild!
MozReview-Commit-ID: KxQkaUbsjQs
