Merging maven .m2 repositories

I have a maven repository in an offline network.

I need to update its contents and merge in another repository .

What is the best method to do this ? I looked at the wagon plugin Wagon but I am concerned that there may be a better way.

I could replace my local repo with an offline repository manager but the problem sti开发者_运维技巧ll remains , I would have to update that Repo with regular merges from an online source.

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If you can afford to get rid of all metadata (which should recover with the next mvn commands you run) for the time of your operation, just use rsync.

If building a concrete repository is not mandatory, consider using Nexus and its groups.

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Vincent's answer is correct, but I would more strongly suggest that you don't do this in the .m2/repository directory. That directory is a cache, and should be able to be removed at any time. You should consider setting up a repository manager (such as Archiva, Nexus or Artifactory, or just a HTTP server) and host the repository content there so that you can let Maven manage the .m2/repository directory.