Re: Problems with selecting log revision by date: -r {yyyy-mm-dd}

On Wed, Dec 3, 2014 at 2:45 PM, Philip Martin
<philip.martin_at_wandisco.com> wrote:
> Stefan Sperling <stsp_at_elego.de> writes:
>
>> On Wed, Dec 03, 2014 at 12:22:02PM +0000, sebb wrote:
>>>
>>> svn co --depth files https://svn.apache.org/repos/asf/subversion/trunk
>>> subversion
>>>
>>> $ svn log -l 10 subversion
>>> -- this works OK
>>>
>>> $ svn log -r {2014-11-30} subversion
>>> ------------------------------------------------------------------------
>>> $ svn log -r {2014-11-30T00:00:00} subversion
>>> ------------------------------------------------------------------------
>>
>> Date search doesn't work on the ASF repository because svn:date properties
>> of revisions aren't monotonically increasing.
>>
>> See the note at the very bottom of http://svnbook.red-bean.com/en/1.7/svn.tour.revs.specifiers.html#svn.tour.revs.dates
>>
>
> That's correct, but it is not the complete story. The date search does
> return a revision even if that revision is not "correct" is some sense.
> However the date search works on the whole repository
>
> https://svn.apache.org/repos/asf
>
> so the revision produced will often be one which didn't change
> /subversion/trunk. That means that an empty log is shown just like
> it is for this
>
> svn log -r1643098 https://svn.apache.org/repos/asf/subversion/trunk
>
> Even when a repository does have strictly mototonic dates using log with
> a single date will often show a blank log on non-root paths within the
> repository.
>

So perhaps the user should have specified a range, instead of just one date?

Like:

    $ svn log -r {2014-11-30}:HEAD subversion

or:

    $ svn log -r {2014-11-30}:{2014-11-31} subversion

-- 
Johan