[Gnu-arch-users] Re: Design proposal to kill pristine trees

[Pau Aliagas]

On 8 Oct 2003, Miles Bader wrote:

> Pau Aliagas <address@hidden> writes:
> > Let's see if I understand it: you want arch to invoke a hook, if existing,
> > each time it needs to find or make a revision library or pristine tree, 
> > that is each time it calls arch_find_or_make_local_copy.
> 
> Actually I thought that it would be sufficient to only do it once, the
> first time a revlib/pristine was needed, and thereafter return a cached
> copy of the result returned the first time (that's one reason for having
> the hook-script return a path).

If you want to provide the path to the revlib entry or create it in 
a particular path, then every time that arch needed a library, it should 
call the hook.

> > We'd need to modify the library functions to accept a path.
> 
> I'm not sure of the internal detail, I just know what I want. :-)

I'm thinking ahead ;)

> > Witha nice script you can even use it to prune the unneeded revisions.
> 
> Wouldn't that be better done by another, more specialized hook (e.g. one that
> is called to supply a _particular_ revision out of a library)?

You can do it in any moment, but if you build a script to manage 
libraries, I think that looks like the better place to automate it.
If you look at the name of the procedure arch_find_or_make_local_copy, 
you'll see that it does not distinguish one case from the oher. When you 
need a local copy, find it or make it!

Pau