hg cat and renamed files

[Bastian Doetsch]

Am Mittwoch, den 19.11.2008, 16:51 -0600 schrieb Matt Mackall:

> On Wed, 2008-11-19 at 23:19 +0100, Bastian Doetsch wrote:
> > Hi there,
> > 
> > iirc, hg cat doesn't follow renames. Are there plans to support this
> > in the future?
> 
> First, let me point out that cat shouldn't follow renames by default. 
> If you say 'hg cat -r 1.0 Makefile', we assume you are asking for the
> contents of Makefile at revision 1.0 regardless of whether or not that
> file later got replaced by another file named, say,
> 'Makefile.experimental', which was *not the file actually used by Make*
> to build your project.
> 
> In other words, file *names* usually have semantic precedence over file
> *histories* because file *names* are what users and programs generally
> operate on.


Yep, I agree.


> 
> That said, it'd probably make sense to add a --follow meaning "follow
> the contents of the file currently named x back in history to rev X".
> But note that this operation is not well-defined! If one user renames
> Makefile.experimental to Makefile and merges, there are now two files
> with legitimate claim to being the ancestor at 1.0. We'd probably show
> the latter here, because of the aforementioned semantic precedence
> issues.


Excellent, a --follow would be what I was hoping for and the described
behaviour would exactly be what at least I would expect. 

Now I can only hopes, somebody steps ahead and adds the option :)).
Unfortunately, I know basically nothing about coding in python...

Thanks,
Bastian


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