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What's the exact behaviour of '-D date-spec'?

From: Evan Lavelle
Subject: What's the exact behaviour of '-D date-spec'?
Date: Tue, 24 Jan 2006 14:08:05 +0000
User-agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)

What is the behaviour of '-D date-spec' without a time, and with a time?

The manual says "Use the most recent revision no later than date_spec". But CVS 1.11.17 doesn't seem to do this. Without a time, it seems to be "use the most recent revision no later than time 00:01 on date-spec". Surely no later than, for example, January 24th should actually mean no later than 23:59 on Jan 24th? The timed version also seems to be incorrect: it seems to be an hour out (daylight saving?!)

I have a repository with no tags, and I need to retrieve the version which was checked in at the end of the day on 1999-08-10 (there may have been more than one version checked in that day). I've tested this on one file which has this log:

revision 1.4
date: 2000/01/31 09:51:37;
revision 1.3
date: 1999/08/10 11:00:45;
revision 1.2
date: 1999/03/09 16:24:13;

Here are the results (cvs update -D"x"):

Date               Gets version
----------         ------------
1999-08-10         1.2
1999-08-11         1.3
1999-08-10 11:15   1.2
1999-08-10 12:00   1.2
1999-08-10 12:01   1.3
1999-08-10 12:15   1.3
1999-08-10 13:00   1.3
1999-08-10 23:59   1.3

My reading is that *all* these updates should have got v1.3.

Thanks -


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