Hi Rick,
Change sets and changes file will save you no matter how you crash your image.�� Saving your image after development is dangerous, I don���t recommend it.
What I do is make a change set.�� I���ll develop and then when I���m ready to start testing I���ll file it out.�� I���ll do some testing blow up develop more.�� If I forget to file out the change set the changes file is your friend.�� ����World menu -> changes��� -> recently logged changes ��� will give you a nice list of the last things you did.�� It���s quite easy to filter out stuff and get a nice list of changes, and file them in.�� It is very hard to lose code.
When you get to a good point and want to save your state always start from your last saved image.�� Load your change set, save your changes to Monticello, or your own favorite repo.�� Exit, load your changes from your repo, clean your image and save.�� Now your recently logged changes will have another nice clean entry.�� Rinse and repeat.��
Hope that helps.
All the best,
Ron Teitelbaum
Head Of Engineering
3d Immersive Collaboration Consulting
Follow Me On Twitter: @RonTeitelbaum
From: Pharo-dev [mailto:pharo-dev-bounces@lists.pharo.org] On Behalf Of Rick Kitts
Sent: Monday, May 19, 2014 10:41 PM
To: Pharo Development List
Subject: [Pharo-dev] Advice for a newb
Hello. I was wondering if anyone could point me to or otherwise suggest some best practices for working on Kernel code. I���m futzing about with the Duration class (in the interest of fixing 13215) and have discovered that it���s really easy to crash Pharo if I break that class. I assume there are other classes that would exhibit the same behavior.
I suppose I could just be really cautious and save my image after every change but that seems so error prone that I���m hoping that there are idiomatic ways of working on kernel code (beyond just save ones image early and often) so I don���t lose work. I���m asking because the naive solution (copy the original class, modify it to suit, delete the original and rename the new class to the original) of course doesn���t work.
TIA for any suggestions or assistance and apologies in advance if this is RTFM, I didn���t see anything (didn���t look very hard either though).
���Rick