Rename build files from TARGETS to BUCK (group ID: 1842302970244970417) (#19428)

[bigfootjon]

Summary: Pull Request resolved: #19428

Reviewed By: bigfootjon

Differential Revision: D104415000

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/19428

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❌ 2 New Failures, 1 Pending

As of commit 8032e69 with merge base 4413a5c ():

NEW FAILURES - The following jobs have failed:

• Lint / lintrunner (gh)
  >>> Lint for backends/mediatek/runtime/BUCK:
• pull / test-multimodal-linux (gemma3-4b) / linux-job (gh)
  RuntimeError: Command docker exec -t 15bfdc868b1d219fc5b1ed6cd70981bb0d543801b8efa84176848c58cf7fce87 /exec failed with exit code 139

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[meta-codesync]

@bigfootjon has exported this pull request. If you are a Meta employee, you can view the originating Diff in D104415000.

[Copilot]

Pull request overview

Migrates several backend build definitions to the BUCK build-file migration pattern by wrapping targets with fbcode_target / non_fbcode_target, and merges the MediaTek runtime TARGETS content into BUCK.

Changes:

• Add build_file_migration.bzl wrappers and convert existing targets to fbcode_target/non_fbcode_target.
• Merge backends/mediatek/runtime/TARGETS into backends/mediatek/runtime/BUCK.
• Apply the same wrapper conversion for example and CUDA test targets.

Reviewed changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
backends/mediatek/runtime/TARGETS	Removed/merged into the corresponding BUCK file as part of the TARGETS→BUCK migration.
backends/mediatek/runtime/BUCK	Adds migration wrappers and wraps the neuron_backend cxx library as a non-fbcode target.
backends/mediatek/quantizer/BUCK	Wraps the quantizer python library with fbcode_target for migration.
backends/example/BUCK	Wraps example python libraries and unittest target with fbcode_target.
backends/cuda/tests/BUCK	Wraps CUDA test targets with fbcode_target for migration.

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