Thu Oct 31 16:54:31 EDT 2019

An incremental build cache

So solve it for the hatd project first.  That one has:

- current source state, not necessarily in git (commited when done)
- a download cache for buildroot (surviving full rebuilds)
- current build state (deleted on full rebuild)

The final version should have:
- build script referencing the source package
- full rebuild

Or don't cache the source at all.

For exo it is pretty much the same.

So I wonder: somebody has already done this.