mbutrovich opened a new pull request, #4494:
URL: https://github.com/apache/datafusion-comet/pull/4494
## Which issue does this PR close?
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Related to #4406.
## Rationale for this change
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Why are you proposing this change? If this is already explained clearly in
the issue then this section is not needed.
Explaining clearly why changes are proposed helps reviewers understand your
changes and offer better suggestions for fixes.
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Long-running jobs (PR builds, Spark and Iceberg test matrices, docs deploy)
currently fire in parallel with the cheap correctness checks (RAT, prettier,
missing-suites, actionlint). A formatting or license-header failure surfaces
only after a runner has already been claimed for tests, which wastes capacity
and delays signal. Gating the heavy jobs on the cheap ones short-circuits the
pipeline on trivial failures.
## What changes are included in this PR?
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sometimes worth providing a summary of the individual changes in this PR.
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- New umbrella `ci.yml` with three phases: `preflight` (RAT, prettier,
missing-suites, actionlint on `ubuntu-slim`), `changes` (path-filter compute,
gated on preflight), and a fan-out of every long workflow gated on its
`changes` output and event/label criteria.
- Existing path filters, label gates (`run-spark-3.4-tests`,
`run-spark-4.1-tests`), and main-only restrictions for Iceberg 1.8/1.9
preserved verbatim, just relocated into the umbrella.
- `pr_build_linux.yml`, `pr_build_macos.yml`, `pr_benchmark_check.yml`, and
`docs.yaml` converted to `workflow_call` reusables.
- Eleven standalone short-check and per-version trigger workflows deleted.
- `pr_title_check.yml` left standalone because it relies on
`pull_request.types: [edited]`, which the umbrella does not handle.
- `.github/workflows/README.md` added with a flow diagram and a "what runs
when" table.
## How are these changes tested?
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Existing tests.
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