I would advocate not allowing them, but using them to provide useful
information in the case of a resolution exception that can easily
guide the user on what to do.
If folks strongly want to continue to allow it, I would go with a
prominent warning (which is the case for several other things now).
As to what the user is guided to do - I assume that is to declare them
as repositories in the current project, or to refer to their
repository manager's documentation to add it there (with this being
recommended). In the long run I'd hope Maven can better handle
multiple repositories OOTB (in a way that still complements the use of
a repository manager) - actually I remember briefly talking to Brian
about that at last year's ApacheCon Maven BOF :) Time flies...
- Brett
On 28/10/2009, at 10:52 PM, Benjamin Bentmann wrote:
Hi,
following a comment by Wendy on JIRA, I wanted to re-check what our
plans are for repositories in dependency POMs. In more detail, how
is dependency resolution in Maven 3.x expected to work here:
project ---depends-on---> A ---depends-on---> B
where the POM of A declares the repository R hosting B.
Now, when it comes to resolve B's POM/JAR (and its transitive
dependencies) in the context of building the project, should Maven 3
also consider R (like currently done in Maven 2) or only those
repositories that are available for the root of the dependency
graph, i.e. the repositories declared in the POM of the project and
the settings?
Besides the question of the degree of backward-compat we want to
keep, the issue with ignoring the repositories declared in
dependency POMs I see is the effect on open source projects and
their consumers. If one project consumes the artifacts of another,
do we want the first project to redeclare all repositories required
to resolve the transitive dependencies of the second project? Some
arguments for the other side can be found in [1].
So, where do we want to go with this?
Benjamin
[0]
http://jira.codehaus.org/browse/MNG-4413?focusedCommentId=196344&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_196344
[1] http://jira.codehaus.org/browse/MNG-3056
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