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Merged
jserv merged 1 commit into from
Apr 9, 2026
+26 −8
Merged

Detect workflow file changes to trigger LKL build #54

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34 changes: 26 additions & 8 deletions .github/workflows/build-lkl.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -36,8 +36,12 @@ jobs:
contents: read
outputs:
lkl_commit: ${{ steps.head.outputs.commit }}
yml_hash: ${{ steps.compare.outputs.yml_hash }}
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needs_build: ${{ steps.compare.outputs.needs_build }}
steps:
- name: Checkout repository
uses: actions/checkout@v6

- name: Get upstream LKL HEAD
id: head
run: |
Expand All @@ -54,25 +58,37 @@ jobs:
env:
GH_TOKEN: ${{ github.token }}
run: |
CURRENT_YML=$(sha256sum .github/workflows/build-lkl.yml | awk '{print $1}')
echo "yml_hash=${CURRENT_YML}" >> "$GITHUB_OUTPUT"

if [ "${{ inputs.force }}" = "true" ]; then
echo "needs_build=true" >> "$GITHUB_OUTPUT"
echo "Forced rebuild requested."
exit 0
fi

# Fetch BUILD_INFO from existing nightly release.
LAST_COMMIT=$(gh release view "${{ env.NIGHTLY_TAG }}" \
LAST_RELEASE=$(gh release view "${{ env.NIGHTLY_TAG }}" \
--repo "${{ env.KBOX_REPO }}" \
--json body --jq '.body' 2>/dev/null \
--json body --jq '.body' 2>/dev/null) || LAST_RELEASE=""

LAST_COMMIT=$(echo "$LAST_RELEASE" \
| grep -oP 'commit=\K[0-9a-f]+' | head -1) || LAST_COMMIT=""

CURRENT="${{ steps.head.outputs.commit }}"
if [ "$LAST_COMMIT" = "$CURRENT" ]; then
echo "needs_build=false" >> "$GITHUB_OUTPUT"
echo "Upstream unchanged (${CURRENT}). Skipping build."
else
LAST_YML=$(echo "$LAST_RELEASE" \
| grep -oP 'yml_hash=\K[0-9a-f]+' | head -1) || LAST_YML=""

CURRENT_COMMIT="${{ steps.head.outputs.commit }}"

if [ "$LAST_COMMIT" != "$CURRENT_COMMIT" ]; then
echo "needs_build=true" >> "$GITHUB_OUTPUT"
echo "New upstream commit: ${CURRENT_COMMIT} (was: ${LAST_COMMIT:-none})"
elif [ "$LAST_YML" != "$CURRENT_YML" ]; then
echo "needs_build=true" >> "$GITHUB_OUTPUT"
echo "New upstream commit: ${CURRENT} (was: ${LAST_COMMIT:-none})"
echo "build-lkl.yml was changed"
else
echo "needs_build=false" >> "$GITHUB_OUTPUT"
echo "Upstream unchanged (${CURRENT_COMMIT}) and the build script unchanged. Skipping build."
fi

# ---- Build x86_64, aarch64 and riscv64 in parallel ----
Expand Down Expand Up @@ -144,12 +160,14 @@ jobs:
GH_TOKEN: ${{ github.token }}
run: |
LKL_COMMIT="${{ needs.check-upstream.outputs.lkl_commit }}"
YML_HASH="${{ needs.check-upstream.outputs.yml_hash }}"
BUILD_DATE=$(date -u +%Y-%m-%dT%H:%M:%SZ)

cat > /tmp/release-notes.md <<EOF
Nightly prebuilt liblkl.a for kbox.

commit=${LKL_COMMIT}
yml_hash=${YML_HASH}
date=${BUILD_DATE}
upstream=https://github.com/${{ env.LKL_UPSTREAM }}/commit/${LKL_COMMIT}

Expand Down
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