On Thu, Nov 15, 2018 at 09:48:54AM -0500, Jeff King wrote:

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

Whoops, those should all be:

  t/helper/test-tool date approxidate ...

in recent versions of Git (I was bisecting something earlier, and has a
crufty test-date left over from an old version!).

Adding new unit aliases would be something like:

diff --git a/date.c b/date.c
index 9bc15df6f9..eb477d1601 100644
--- a/date.c
+++ b/date.c

@@ -1016,6 +1016,7 @@ static const struct typelen {
 	{ "minutes", 60 },
 	{ "hours", 60*60 },
 	{ "days", 24*60*60 },
+	{ "d", 24*60*60 },
 	{ "weeks", 7*24*60*60 },
 	{ NULL }
 };

but I suspect we need to tighten up the string matching a bit. I think
that would allow "2 dogs" to be parsed as "days".

-Peff