Restore crate_universe/extension.bzl shim with a deprecation warning - #4114
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UebelAndre merged 1 commit intoJun 27, 2026
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bazelbuild#4005 removed `crate_universe/extension.bzl`, the deprecated re-export of `crate_universe/extensions.bzl`, as part of dropping WORKSPACE support. Downstream projects may still load `crate` from that path via `use_extension`, so any build that resolves `rules_rust` 0.71.0 with such a module in its graph fails. `protobuf` 35.1, the newest release on BCR, is one such module. Restore the shim and print a deprecation warning at load time, giving downstream modules a short window to migrate to `extensions.bzl`, e.g.: - protocolbuffers/protobuf#28226. Closes bazelbuild#4111.
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Sounds good to me! Thank you for putting up this pull request! I'll get a release out ASAP.
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#4005 removed
crate_universe/extension.bzl, the deprecated re-export ofcrate_universe/extensions.bzl, as part of dropping WORKSPACE support.Downstream projects may still load
cratefrom that path viause_extension, so any build that resolvesrules_rust0.71.0 with such a module in its graph fails.protobuf35.1, the newest release on BCR, is one such module.Restore the shim and print a deprecation warning at load time, giving downstream modules a short window to migrate to
extensions.bzl, e.g.:crate_universeextension fromextensions.bzlprotocolbuffers/protobuf#28226.Closes #4111.