[p4] converting static labels to automatic labels

[Tetlow, Gordon]

I would go a step further and not use a workspace at all but diff2:

p4 changes -m 1 //... at label
p4 diff2 -q //... at label //... at changelist

That should be faster because it doesn't have the overhead of the
metadata operations a p4 flush does.

-gordon 

> -----Original Message-----
> From: perforce-user-bounces at perforce.com 
> [mailto:perforce-user-bounces at perforce.com] On Behalf Of Stephen Vance
> Sent: Friday, July 20, 2007 7:15 AM
> To: Jay Glanville
> Cc: Perforce Users Mailing List
> Subject: Re: [p4] converting static labels to automatic labels
> 
> There are a couple of things to consider. Which ones you worry about
> depends on your trust in the orderliness of your environment.
> 
> The easy part is
> 
> p4 changes -m 1 @label
> 
> which, as you note, answers the question "What is the highest 
> changelist
> number that contributes to the label?"
> 
> Next, if you create a workspace and
> 
> p4 sync -k @label
> p4 sync -k -n @changelist
> 
> you will find out if the label purely represents the 
> changelist *within
> the constraints of your views*.
> 
> However, both your workspace view and your label view can potentially
> split changelists. If you open up those views to include your entire
> repository, you could use a combination of 'p4 sync -k -n @changelist'
> and 'p4 labelsync -n -l label @changelist' to easily 
> determine if it was
> truly pure. If you need to keep the views restrictive then it's a more
> computational task to determine.
> 
> Steve
> 
> Jay Glanville wrote:
> > Hello all.
> >
> > I'm wanting to convert some of the old static labels we have (many
> > containing over 60k files) into automatic ones, in the hopes that it
> > will make label diffs more efficient.  The conversion process itself
> > isn't that hard.
> >
> > The hard bit is trying to determine if an automatic label 
> can represent
> > a static label.  The only way I can think of right now is 
> to find the
> > highest change list in the label, and then perform a diff 
> between the
> > label and the change list.  But, is that the best way?  Is there a
> > simpler way (that just hasn't occurred to me yet...).
> >
> >
> > So, my question to these eminent minds is this: what is the 
> best way to
> > determine if a static label can represented by an automatic label?
> >
> >
> > Thanks
> >
> > JDG
> >
> > ---
> > Jay Dickon Glanville
> >
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> >
> >   
> 
> -- 
> Stephen Vance
> www.vance.com
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