python bindings#27
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astral-sh/setup-uv publishes only exact tags (v8.2.0, v8.1.0, ...); the @v8 pin failed action resolution in 15s on every job. wheel-index.yml carried the same latent break — it had simply never been dispatched. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
main's copy existed only to register the publish workflow for workflow_dispatch; the branch's version is current (tag-gated cuda-windows call, smoke-assets path fix). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The previous fix used an end-of-line-anchored pattern; pins followed by inline comments (cpp-tests x2, co-import) kept @v8 and failed action resolution at Set-up-job. All 16 pins verified v8.2.0; every other action ref in the tree verified resolvable against its repo's tags. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The cu12 wheel built inside pip's isolated env (/tmp/build-env-<random>); ggml-vulkan's vulkan-shaders-gen ExternalProject baked that env's ninja path into an inner CMake cache on the persistent build volume, so the next run invoked a ninja that no longer existed (first surfaced when D1 added TRANSCRIBE_VULKAN=ON — the first ExternalProject in this tree, poisoned by a cancelled run's background-committed state). Build with --no-isolation against image-provided build/scikit-build-core/ninja (stable paths) and bump BUILD_CACHE_EPOCH to rotate the poisoned tree. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The gate builds ggml with the default GGML_NATIVE=ON (-march=native); ccache hashes the literal flag, not the resolved ISA, so a cache populated on a richer-ISA Blacksmith machine restored onto a weaker one links AVX-512 objects that SIGILL at runtime (observed: 11/22 ILLEGAL in cpp-tests-sanitized on the first cross-machine restore). Segregate caches by a hash of /proc/cpuinfo flags; native builds keep testing machine-tuned kernels, hits resume whenever the fleet repeats a CPU. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
A truncated GitHub release download (gzip: unexpected end of file) failed the image build. -f + --retry to a temp file, then extract. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The --no-isolation switch (1f167d4) moved ninja to a stable image path but removed the only thing that had put a ninja on PATH: pip's isolated env scripts dir. scikit-build-core passes CMAKE_MAKE_PROGRAM to the top-level configure only, so vulkan-shaders-gen's inner CMake configure falls back to a PATH search and died with "unable to find a build program corresponding to Ninja" (the CMAKE_C_COMPILER errors are cascade). Prepend /opt/python/cp312-cp312/bin to PATH and bump BUILD_CACHE_EPOCH to e3 to rotate the tree whose inner cache background-committed CMAKE_MAKE_PROGRAM-NOTFOUND. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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