On Thu, Nov 15, 2018 at 02:45:28PM +0100, Andreas Krey wrote: > I've now located why our backup repo shrinks every month: > > git gc --prune=2d > > doesn't do what I expected, and differs a lot from --prune=48h. Yeah, it understands "2 days", but not "d" as a unit. I don't think "48h" does what you expect either: $ t/helper/test-date approxidate now now -> 2018-11-15 14:43:32 +0000 $ t/helper/test-date approxidate 48h 48h -> 2018-11-15 14:43:34 +0000 $ t/helper/test-date approxidate 48.hours 48.hours -> 2018-11-13 14:43:38 +0000 It might be reasonable to teach approxidate these obvious shorthands (one tricky one is "m"; normally I'd say "minute", but in Git timescales "month" is more likely). > Mildly irritating, and worse, hard to find in the documentation. > I failed at the latter and fell back to the sources, finding > './bin-wrappers/test-date approxidate' for trying. > > Where would I look? I don't think approxidate is really documented at all. It started as Linus's idea of "handle what people would probably say", and the fixes over the years have mostly been "eh, that's crazy, let's do better with this input". You'd have to reverse engineer it a bit from the source, unfortunately. -Peff
