Align dependency handling with Bazel best practices #9165
Merged
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This commit removes the use of bind() since that function goes against
Bazel best practices:
https://docs.bazel.build/versions/main/external.html#repository-rules-1
The bind() function basically maps a dependency into //external:, but
there is no good reason to do this. By mapping dependencies into
//external: and relying on this in our own BUILD files, we're forcing
projects that depend on us to do the same. The one bind() call that I
did leave in place was //:python_headers. This one seems to be doing
something complicated I don't fully understand, and I don't want to risk
breaking it.
This change also moves our list of required Maven artifacts into
protobuf_deps.bzl. This way, projects that depend on us can refer to
this list when they invoke maven_install() and automatically pull in all
the necesary dependencies.
This fixes #9132.