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Re: Keeping last-modified dates

From: Duncan Murdoch <murdoch_at_stats.uwo.ca>
Date: 2006-08-30 14:49:24 CEST

On 8/30/2006 4:41 AM, Thompson, Graeme (AELE) wrote:
> There was a design discussion a little while ago, This would probably be
> a good starting place to improve on if required.
> http://svn.haxx.se/users/archive-2005-11/1101.shtml

I haven't read all the messages in that thread, they're broken up into
several different places. But one problem with the recommendation is
that it lacks a discussion of behaviour on updates. It gives these 4
options for export and checkout:

> Export and checkout:
> Configuration:
> - 4 options available to the client for the setting of the
> modification datetime:
> 1) Use the current datetime
> 2) Use the checkin datetime
> 3) Use the original file datetime. If this was not stored in the
> repository then the current time should be used (this can then be used
> by the user to know that there was no modification datetime available)
> 4) Use the original datetime for all files that have the per file
> storage flag set. To allow for the people who want the docs with their
> original modification datetime but the source with the current datetime.
> (This differs from 3 in that if the global store datetime flag is on
> then this will give the client the ability to get the behaviour as if
> the global store datetime flag was off when a file was checked in. i.e.
> for developers that want to use the current datetime for source files
> that are stored on a server that is storing the modified datetime for
> all files.)

Updates are trickier, because the file in the working copy will have its
own modification date. If the file has been modified since the last
checkout, but a binary compare says there are no net changes: should
the date be changed back to the old one? If it has no local changes but
is being updated, which date should be used? If changes have been made
so the update will do a merge, which date should be used?

Duncan Murdoch

>> -----Original Message-----
>> From: Andrew Webb [mailto:andrew.microi@gmail.com]
>> Sent: 29 August 2006 19:01
>> To: Duncan Murdoch
>> Cc: Steve Fairhead; users@subversion.tigris.org
>> Subject: Re: Keeping last-modified dates
>> So... it seems that for some this proposed feature of retaining files'
>> last-mod date is a must-have, and their processes, make procedures and
>> so on can cope. For others, the opposite is true.
>> Say for argument's sake it is implemented as an option in SVN 1.5.
>> What form should the option take? Is this a affects-whole-repository
>> flag? Or does it need to be more granular?
>> Andrew
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Received on Wed Aug 30 14:55:05 2006

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