Cron parser for Crystal language. Translated from Ruby https://github.com/siebertm/parse-cron. It is parse a crontab timing specification and determine when the job should be run. It is not a scheduler, it does not run the jobs.
Add this to your application's shard.yml:
dependencies:
cron_parser:
github: kostya/cron_parserrequire "cron_parser"
cron_parser = CronParser.new("30 * * * *")
# Comming times
p cron_parser.next(Time.now)
p cron_parser.next(Time.now, 5)
p cron_parser.next(Time.utc_now)
p cron_parser.next(Time.utc_now, 5)
# Times that have been
p cron_parser.last(Time.now)
p cron_parser.last(Time.now, 5)