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chore: fetch transformers version from lightning-thunder requirements, for gpu test #2184

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Merged
KaelanDt merged 2 commits into from
Jan 13, 2026
Merged

chore: fetch transformers version from lightning-thunder requirements, for gpu test #2184

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e1bc9ca
Dynamically fetch transformers version from lightning-thunder require…
bhimrazy Jan 7, 2026
5aa9aa2
Add error handling for transformers version extraction in tests workflow
bhimrazy Jan 8, 2026
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12 changes: 11 additions & 1 deletion .lightning/workflows/tests.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,17 @@ run: |
pip install -U "lightning-thunder[test] @ git+https://github.com/Lightning-AI/lightning-thunder.git" "torch==${TORCH_VERSION}"
# Pin transformers to match thunder's test_networks.py requirements
# See: https://github.com/Lightning-AI/lightning-thunder/blob/main/requirements/test.txt
pip install transformers==4.52.4 # todo: find more robust way
# Get transformers version from thunder requirements
TRANSFORMERS_VERSION=$(curl -fsSL https://raw.githubusercontent.com/Lightning-AI/lightning-thunder/main/requirements/test.txt \
| grep '^transformers==' \
| cut -d'=' -f3 \
| cut -d'#' -f1 \
| xargs)
if [ -z "${TRANSFORMERS_VERSION}" ]; then
echo "Error: Could not determine transformers version from lightning-thunder requirements"
exit 1
fi
pip install transformers==${TRANSFORMERS_VERSION}
# without env var, it filters out all tests
RUN_ONLY_CUDA_TESTS=0 pytest tests/ext_thunder/test_thunder_networks.py -v
fi