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nix-builder: wire up generate-symbols in the build - #894

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danieldk merged 1 commit into
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generate-symbols-hook
Oct 9, 2026
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danieldk merged 1 commit into
mainfrom
generate-symbols-hook

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@danieldk danieldk commented Oct 9, 2026

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  • Package generate-symbols as a Nix derivation.
  • Create a hook for generate-symbols and use it in the kernel derivations.
  • Add an option to generate-symbols to take a dependency file, so that sandboxed kernel dependencies work.
  • Test that the symbol files are generated and have the correct contents for some example kernels.

- Package `generate-symbols` as a Nix derivation.
- Create a hook for `generate-symbols` and use it in the kernel derivations.
- Add an option to `generate-symbols` to take a dependency file, so that
  sandboxed kernel dependencies work.
- Test that the symbol files are generated and have the correct contents
  for some example kernels.
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The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

Comment on lines +139 to +142
resolvers = [
RepoPathsResolver(local_kernels={repo_id: kernel_dir}),
KernelPathsResolver(kernel_paths=kernel_paths),
]

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In a million years, I would not have thought about it. Great call!

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github-actions Bot commented Oct 9, 2026

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Coverage report — kernels/

Measured on: Python 3.10 / Torch 2.13.0.
Other CI configurations are not included in this number.
Hardware-gated code paths (ROCm/XPU/NPU/Darwin/Windows) are excluded or unreachable on the Linux+CUDA runner.

Total coverage: 87.5% — threshold: 80% — ✅

Per-file breakdown
Name Stmts Miss Cover Missing
src/kernels/__init__.py 14 0 100%
src/kernels/_system.py 6 1 83% 10
src/kernels/_versions.py 130 14 89% 53, 59-60, 63-64, 102, 165-170, 199, 219
src/kernels/archs.py 56 1 98% 94
src/kernels/backends.py 214 62 71% 42, 46, 50-53, 70, 92, 110, 119, 123, 127-129, 150, 159, 163, 167-169, 190, 201, 203, 210-213, 222, 226, 230-250, 258, 281-301
src/kernels/compat.py 9 1 89% 5
src/kernels/deps.py 70 1 99% 56
src/kernels/hf_hub.py 63 2 97% 21, 23
src/kernels/importer.py 44 5 89% 80, 84, 87, 101-102
src/kernels/install.py 21 7 67% 76-100
src/kernels/layer/__init__.py 6 0 100%
src/kernels/layer/_interval_tree.py 103 4 96% 23, 52, 147, 150
src/kernels/layer/device.py 48 14 71% 42, 47-49, 91, 96-98, 101, 149, 152, 155-157
src/kernels/layer/func.py 85 6 93% 90, 115, 191, 311, 338, 368
src/kernels/layer/globals.py 5 0 100%
src/kernels/layer/kernelize.py 82 8 90% 259, 297, 305-306, 312, 316, 332-334
src/kernels/layer/layer.py 309 22 93% 211, 258, 285, 416, 437, 444-447, 453-454, 556-557, 578, 586, 597, 637, 641, 654, 708, 738, 813
src/kernels/layer/mode.py 14 0 100%
src/kernels/layer/repos.py 144 42 71% 27, 33, 36-43, 63-64, 70, 73-76, 90, 94, 103-104, 110, 113-116, 123-124, 130, 133-136, 143-144, 150, 153-156, 163-164, 170, 173-176, 257
src/kernels/load.py 71 2 97% 338, 378
src/kernels/locking.py 89 64 28% 35-83, 91-98, 102-125, 137, 152-159, 165-175, 179-186
src/kernels/python_deps.py 58 6 90% 59-60, 64-65, 101, 104
src/kernels/resolver.py 158 1 99% 231
src/kernels/status.py 50 2 96% 25, 79
src/kernels/validate.py 88 5 94% 9, 100, 167, 190-191
src/kernels/variants.py 278 17 94% 65, 96, 117, 147, 256-257, 299-302, 304, 388-394, 400-406, 455-461
src/kernels/verify.py 127 6 95% 46, 202-204, 318-319
TOTAL 2342 293 87%

Updated by the Test kernels workflow on commit 4857a1ddaf1f82e8ae06d3f561a6c34acec0a08e.

@danieldk
danieldk merged commit e4cc7cc into main Oct 9, 2026
52 of 53 checks passed
@danieldk
danieldk deleted the generate-symbols-hook branch October 9, 2026 13:17
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3 participants