Re: using git directory cache code in darcs?

DR> 1) Would this actually be a good idea?

I think it is sensible, especially if you are doing a lot of comparison between the working area and the pristine.

DR> 3) Is it likely that git will switch to not using global DR> variables for active_cache, active_nr and active_alloc?

DR> 4) Would there be interest in creating a libgit?

These are related. I have seen some people interested in libifying it, and encapsulating those globals would naturally fall out of it. My impression from the list however is that a lot more people are interested in the upper SCM layer than the git layer right now. And git layer, although solid enough to host itself, is still slushy. A couple of days ago dircache format was changed from host to network endian. Last night Linus made another change to dircache format, which fortunately is upward compatible if you stay within pathnames shorter than 2^12 bytes ;-). Another problem I see for somebody to pick up and start libifying things right now is that, although there is one central person on the SCM side (Petr Baudis), git layer is still fractured between Linus and Petr.

Petr syncs with Linus often and he seems to be doing a good job at keeping track of public patches, but the git layer Linus works on does not have some patches Petr collected or wrote himself. In time, a better coordination would emerge, of course, but the project is still young at this moment. Stay tuned ;-).