zhengruifeng opened a new pull request, #58150:
URL: https://github.com/apache/spark/pull/58150

   ### What changes were proposed in this pull request?
   
   This PR backports #58129 to branch-4.x by cherry-picking
   3ac19a09fbcf8f7ab0973e26239565caaa74d1e6.
   
   It makes the `precompile` job a hard prerequisite for downstream build and 
test
   jobs that consume its artifact.
   
   Specifically, it:
   
   - removes `continue-on-error` from `precompile`;
   - requires `needs.precompile.result == 'success'` in downstream job 
conditions;
   - makes precompiled artifact download and extraction mandatory; and
   - removes local SBT build fallback paths from jobs that should reuse the
     precompiled artifact.
   
   ### Why are the changes needed?
   
   Currently, a failed `precompile` job can be treated as an optional 
optimization:
   downstream jobs may continue and rebuild locally. This hides failures in the
   shared precompile step and can waste CI resources. Since these jobs are 
wired to
   consume the precompiled artifact, a precompile failure should stop them 
instead.
   
   ### Does this PR introduce _any_ user-facing change?
   
   No.
   
   ### How was this patch tested?
   
   Ran:
   
   ```
   git diff --check HEAD~1..HEAD
   conda run -n spark-dev-313 python -c "import yaml; 
yaml.safe_load(open('.github/workflows/build_and_test.yml'))"
   ```
   
   ### Was this patch authored or co-authored using generative AI tooling?
   
   Generated-by: Codex (GPT-5)
   


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