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Skip quality gate scoring for unchanged images #47

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Skip quality gate scoring for unchanged images #47

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16 changes: 12 additions & 4 deletions .github/workflows/sbom-quality-gate.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -76,8 +76,13 @@ jobs:
SHA7="${{ needs.load-matrix.outputs.head_sha7 }}"
NAME="${{ matrix.image.name }}"

# If the image wasn't rebuilt for this SHA, skip scoring entirely
COMPONENT_TAG=$(common/lib/scripts/resolve-component-tag \
--image "$NAME" --sha7 "$SHA7" --registry "$REGISTRY")
--image "$NAME" --sha7 "$SHA7" --registry "$REGISTRY" 2>/dev/null) || {
echo "==> No build found for ${NAME} at SHA ${SHA7} — skipping"
echo "skip=true" >> "$GITHUB_OUTPUT"
exit 0
}
echo "component_tag=${COMPONENT_TAG}" >> "$GITHUB_OUTPUT"

# Find the most recent component tag that isn't from this PR's SHA
Expand All @@ -97,6 +102,7 @@ jobs:
fi

- name: Extract current SBOM from OCI attestation
if: steps.tags.outputs.skip != 'true'
run: |
mkdir -p current
common/lib/scripts/extract-sbom-attestation \
Expand All @@ -105,14 +111,15 @@ jobs:
--output "current/${{ matrix.image.name }}.enriched.cdx.json"

- name: Score current SBOM
if: steps.tags.outputs.skip != 'true'
run: |
mkdir -p results
SBOM=$(ls current/*.cdx.json | head -1)
common/lib/scripts/sbom-score --image "${{ matrix.image.name }}" "$SBOM" \
> results/score-${{ matrix.image.name }}.json

- name: Extract baseline SBOM from OCI attestation
if: steps.tags.outputs.has_baseline == 'true'
if: steps.tags.outputs.skip != 'true' && steps.tags.outputs.has_baseline == 'true'
continue-on-error: true
id: baseline-extract
run: |
Expand All @@ -123,14 +130,14 @@ jobs:
--output "baseline/${{ matrix.image.name }}.enriched.cdx.json"

- name: Score baseline SBOM
if: steps.tags.outputs.has_baseline == 'true' && steps.baseline-extract.outcome == 'success'
if: steps.tags.outputs.skip != 'true' && steps.tags.outputs.has_baseline == 'true' && steps.baseline-extract.outcome == 'success'
run: |
SBOM=$(ls baseline/*.cdx.json | head -1)
common/lib/scripts/sbom-score --image "${{ matrix.image.name }}" "$SBOM" \
> results/baseline-${{ matrix.image.name }}.json

- name: Compare SBOMs
if: steps.tags.outputs.has_baseline == 'true' && steps.baseline-extract.outcome == 'success'
if: steps.tags.outputs.skip != 'true' && steps.tags.outputs.has_baseline == 'true' && steps.baseline-extract.outcome == 'success'
run: |
BASELINE=$(ls baseline/*.cdx.json | head -1)
CURRENT=$(ls current/*.cdx.json | head -1)
Expand All @@ -142,6 +149,7 @@ jobs:
> results/compare-${{ matrix.image.name }}.json

- name: Upload results
if: steps.tags.outputs.skip != 'true'
uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6
with:
name: sbom-quality-gate-${{ matrix.image.name }}
Expand Down