Scheduler

An easy-to-use task scheduler that can run arbitrary blocks:

• Every so often (e.g. every hour starting now)
  
• Daily at a given time
  
• Periodically starting at a given time (e.g. every other hour starting a noon)
  
• Per a provide schedule (e.g. using Schedule instance you can run tasks every Monday and Friday)
  
• A one time task at some point in the future
  

"Start a new task scheduler and keep it around"

scheduler := TaskScheduler new.

scheduler start.



"Let's save the image every hour"

scheduler

  do: [Smalltalk snapshot: true andQuit: false]

  every: 60 minutes.



"Let's run a backup at 2am every day"

scheduler

  do: ["backup code here"]

  at: '2am'



"Let's perform a bank transfer every other hour starting at 1pm"

scheduler

  do: ["swiss bank account transfer code"]

  at: '1pm'

  every: 2 hours.



"Let's do a one time email reminder"

scheduler

  doOnce: ["email reminder to go on honeymoon"]

  at: '2005-1-15T8:00'



"You can delete tasks by sending #delete to them"

(scheduler taskAt: 1) delete



"Stop the scheduler from running -- but don't delete its tasks"

scheduler stop.