tree 0264ef134b1689c3497917c07ff136b6336c134c
parent 37cc68f16a3294a5255abb290d385911ec63a9f7
author Sandy Zhang <sandyzhang@google.com> 1732747541 -0800
committer Copybara-Service <copybara-worker@google.com> 1732747861 -0800

Add protobuf_extra_deps.bzl for loading dependencies necessary for external repositories in protobuf_deps.bzl.

This is needed for `rules_java` which requires additional loads for Bazel 8. This provides a single entrypoint for extra dependencies so we can add these moving forward without breaking users, and is similar to https://github.com/grpc/grpc/blob/master/bazel/grpc_extra_deps.bzl.

Non-bzlmod users should make sure to set the following in their WORKSPACE file:
```
http_archive(
    name = "protobuf",
    strip_prefix = "protobuf-VERSION",
    sha256 = ...,
    url = ...,
)

load("@protobuf//:protobuf_deps.bzl", "protobuf_deps")

protobuf_deps()

load("@protobuf//:protobuf_extra_deps.bzl", "protobuf_extra_deps")

protobuf_extra_deps();
```

PiperOrigin-RevId: 700810708