How to save a Pharo image automatically every hour?

Question

I want to save my Pharo image every hour on the hour automatically.

How would you make this automatic within the image?

I've seen the Pier project do this. But I'm not sure how they do it.

TIA

Answer 1

There is the Scheduler project on SqueakSource that looks like cron for Smalltalk. From the overview:

"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.

You could combine that with the blocking code or OSProcess's saveImageInBackgroundNicely mentioned above and have a nice easy solution.