RE: Using hash instead of timestamps to check for changes.

2015-04-02 Thread Martin Dorey
> I spent a few hours trying to work out how to fake this up with a > secondary file whose "modified" time-stamp serves as "up-to-date" for > the primary it represents. I imagine we're not alone, but perhaps an existence proof would have some value: we have generic makefile code that provides thi

Re: Using hash instead of timestamps to check for changes.

2015-04-02 Thread Edward Welbourne
> After reading over your mail a couple of times, I realized that I hadn't > thought things through very well. In fact, rather than saying "hash > instead of time", I should have said "optional additional hash check > when timestamp has changed". Even so, I'm unclear about why "hash" is the thing

Re: Using hash instead of timestamps to check for changes.

2015-04-02 Thread Glen Stark
Hello Paul Sorry to take so long to reply. I wanted to think your input over, and I've had a pretty heavy load lately. Signing over the copyright, and any other legal steps won't be a problem. My company has no rights to work I do in my own time. I'm mainly worried about the technical issues,