Cron4s: Decline

The decline extension adds the ability of using CronExpr as an option in the command line. To be able to use it add the following dependency to your classpath:

libraryDependencies ++= Seq(
  "com.github.alonsodomin.cron4s" %% "cron4s-decline" % "0.6.1",

  "com.monovore" %% "decline" % "1.2.0"
)

And now you will need some imports:

import cron4s.CronExpr
import cron4s.decline._
import com.monovore.decline._

Now you can define options based on cron expressions:

val cronOpt = Opts.option[CronExpr]("frequency", "A cron expression")
// cronOpt: Opts[CronExpr] = Validate(
//   Single(
//     Regular(
//       List(LongName("frequency")),
//       "cron-expr",
//       "A cron expression",
//       Normal
//     )
//   ),
//   com.monovore.decline.Opts$$$Lambda$9881/1045862152@1c79416
// )