How to exclude temporary Xcode files from Time Machine?

Question

I write a lot of code using Xcode. I know Xcode creates temporary files when it builds. These seem to be quite large (GB's), and I would like to exclude them from Time Machine backups.

How can I exclude them ? Where are they located? Is the location always the same?

Answer 1

1. Launch System Preferences
2. Select Time Machine
3. Click Options...
4. Add ~/Library/Developer to exclusion list
5. Click Save