Rename build files from TARGETS to BUCK (group ID: -1063234892916970392)

[bigfootjon]

Reviewed By: bigfootjon

Differential Revision: D104414963

[pytorch-bot]

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[Copilot]

Pull request overview

Migrates extension/pytree Buck build definitions from separate TARGETS (fbcode) + BUCK (xplat) files into unified BUCK files using fbcode_target / non_fbcode_target wrappers, and updates one existing BUCK file to use the migration wrapper.

Changes:

• Deleted TARGETS files under extension/pytree/** and merged their fbcode-only rules into the corresponding BUCK files.
• Added build_file_migration.bzl wrappers to select fbcode vs non-fbcode target definitions from a single BUCK.
• Wrapped extension/pybindings/test/BUCK rules with fbcode_target.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
extension/pytree/TARGETS	Deleted; fbcode-only targets moved into extension/pytree/BUCK.
extension/pytree/BUCK	Now contains both non-fbcode and fbcode target definitions via migration wrappers.
extension/pytree/aten_util/TARGETS	Deleted; contents migrated into extension/pytree/aten_util/BUCK.
extension/pytree/aten_util/BUCK	Now dispatches common targets via non_fbcode_target / fbcode_target.
extension/pytree/aten_util/test/TARGETS	Deleted; contents migrated into extension/pytree/aten_util/test/BUCK.
extension/pytree/aten_util/test/BUCK	Now dispatches common targets via non_fbcode_target / fbcode_target.
extension/pybindings/test/BUCK	Wraps existing python rules with fbcode_target and loads migration helpers.

Comments suppressed due to low confidence (1)

extension/pybindings/test/BUCK:2

• non_fbcode_target is loaded here but not used anywhere in the file. Removing unused loads makes it clearer which targets are intended to be fbcode-vs-xplat and reduces migration boilerplate.

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