[swift-dev] Turns out Incremental builds were not actually incremental

Jordan Rose jordan_rose at apple.com
Thu Jul 21 17:46:58 CDT 2016

> On Jul 21, 2016, at 15:06, Michael Gottesman <mgottesman at apple.com> wrote:
>> On Jul 21, 2016, at 2:54 PM, Jordan Rose <jordan_rose at apple.com> wrote:
>> IIRC this was deliberate because of some past issues with things not getting rebuilt. In particular, even an incremental build should trash the module cache folder every build, and I don’t think we do this. Nicole, do you remember specifically why this was changed? (Or Mishal, when back from vacation?)
> The problem IIRC actually had to do with cloning ninja without checking if we had already checked it out. I updated the bots to do a check if the directory exists before attempting to clone it.

Okay, but if we don’t trash the module cache folder every build, we’re going to see problems with apinotes.


More information about the swift-dev mailing list