Is there a migration path from Maven to Bazel?

Question

Now that Bazel (http://bazel.io/) has been opensourced, is there an incremental process by which I can gradually migrate (a large repository) from Maven to Bazel?

Answer 1

And another update (2018)...

There is a dedicated guide on migrating from Maven build tool to Bazel.

And on a general note, it’s best to have both build tools running in parallel until you have fully migrated your development team, CI system, and any other relevant integrations. You can run Maven and Bazel in the same repository.

https://docs.bazel.build/versions/master/migrate-maven.html

Answer 2

September 2019 update

Wix published a tool called Exodus to automatically migrate your Maven project to Bazel.

Additionally, rules_jvm_external has support for managing transitive Maven artifact dependencies.

May 2018 update

Here's another update using Jadep, a BUILD file generator for your Java projects.

There's a tutorial by the author who migrated google-java-format to Bazel: https://github.com/cgrushko/text/blob/master/migrating-gjf-to-bazel.md