A couple of really neat features, regardless of whether guids or some other
identifying mechanism is used, would be
1) ability to use zeroconf (/bonjour) style networking to automatically
configure your mirror settings
2) for repositories themselves to contain a bit more metadata about the
repository itself - what it does and doesn't contain for example. In one of
our large builds, we have quite a lot of repositories, and the daily 'ask
every repo if it has a new SNAPSHOT' was sped up considerably by configuring
proximity to say 'no' to most paths.

On 01/09/07, Stephen Connolly <[EMAIL PROTECTED]> wrote:
>
> Jerome Lacoste wrote:
> > On 8/31/07, Brett Porter <[EMAIL PROTECTED]> wrote:
> >
> >> Yeah, I meant to note that - I was thinking that this should be
> >> accompanied by a proposal to take care of the id ambiguity problems
> >> which we've discussed a couple of times before.
> >>
> >> I think URLs are still problematic (since you can often have
> >> different ones for the same location), though are a bit more robust
> >> than IDs. We could hash them to generate the directory name in the
> >> repository.
> >>
> >> What do others think?
> >>
> >
> > How are workspaces identified ? a hash of the current directory ?
> > Something related to the project one is working on ? Something related
> > to the current process ?
> >
> > Cheers,
> >
> > Jerome
> >
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> >
> Would a better option be to have the repositories store a identifying
> GUID in their root URL.  That way mirrors would pick up the same GUID
> and be identified as the same repository.
>
> Of course then there's the question, should an aggregating mirror return
> the GUIDs of all the repositories it aggregates or a unique hash.
>
> My feeling is it should return a unique hash, but maybe it could return
> information about it aggregating other repositories...
>
> thus:
>
> The repository-id.xml for an aggregate repository could be something like
>
> <repository-id>
>   <name>ACME Corp's Aggregated Proxy Repository</name>
>   <id>1234-663a-7766-aabbef45-3244</id>
>   <aggregate-repositories>
>     <id>7688-364a-a7f6-1234567-f56e</id>
>     <id>bcd3-5432-8899-9876543-acbd</id>
>   </aggregate-repositories>
> </repository-id>
>
> While repo1.maven.org could be:
>
> <repository-id>
>   <name>Maven Central Repository</name>
>   <id>7688-364a-a7f6-1234567-f56e</id>
> </repository-id>
>
> And, say java.net2 (http://download.dev.java.net/maven/2) could be
>
> <repository-id>
>   <name>Java.net's Maven2 Repository</name>
>   <id>bcd3-5432-8899-9876543-acbd</id>
> </repository-id>
>
> The advantage I see is that existing clients will not be looking for the
> repository-id.xml file, so they won't care.  If we can't find a
> repository-id.xml file for the repository, we generate a GUID on the
> client and store a mapping of URLs to GUIDs in a file in ~/.m2/ so that
> a user can control the mapping of these autogenerated GUIDs
>
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