feat(pdftract-1wfp): implement SHA256SUMS aggregate file generation
Add compute-sha256sums step to pdftract-ci publish-if-tag that produces an aggregate SHA256SUMS file covering all distributed artifacts: binary archives, Python wheels, sdist, and CycloneDX SBOM. Key changes: - Glob-based artifact collection (tar.gz, zip, whl, cdx.json) - Deterministic sorting with LC_ALL=C sort -k 2 for reproducibility - Local verification via sha256sum --check before publishing - Dynamic artifact upload array instead of hardcoded EXPECTED_ARTIFACTS - SBOM added as optional input artifact The SHA256SUMS file format matches GNU coreutils sha256sum output, enabling one-command verification with cosign verify-blob. References: - Plan line 3369: SHA256SUMS aggregate - Plan line 3419: sign-blob of SHA256SUMS - Plan line 3460: one cosign verify-blob umbrella Co-Authored-By: Claude Code <noreply@anthropic.com>
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jedarden
parent
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commit
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2 changed files with 192 additions and 7 deletions
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@ -1100,7 +1100,8 @@ spec:
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#
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# The step:
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# 1. Downloads all five build artifacts from build-matrix
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# 2. Generates SHA256SUMS checksums
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# 2. Computes SHA256SUMS aggregate covering all distributed artifacts
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# (binary archives, Python wheels, sdist, and CycloneDX SBOM)
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# 3. Extracts release notes from CHANGELOG.md
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# 4. Creates or updates the GitHub Release with all assets
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#
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@ -1129,6 +1130,11 @@ spec:
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- name: provenance
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from: "{{tasks.generate-provenance.outputs.artifacts.provenance}}"
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path: /tmp/multiple.intoto.jsonl
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- name: sbom
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path: /artifacts/pdftract-v{{workflow.parameters.ref}}.cdx.json
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optional: true
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# SBOM is generated by cargo cyclonedx in a separate workflow step
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# Optional: release proceeds without it if not present
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activeDeadlineSeconds: 600
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container:
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image: cgr.dev/chainguard/gh:latest
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@ -1176,14 +1182,63 @@ spec:
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exit 1
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fi
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# Generate SHA256SUMS
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echo "=== Generating SHA256SUMS ==="
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# Generate SHA256SUMS aggregate
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# Covers all distributed artifacts: binary archives, Python wheels,
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# sdist, and CycloneDX SBOM. Sorted deterministically by filename.
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echo "=== Generating SHA256SUMS aggregate ==="
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cd "$ARTIFACTS_DIR"
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for artifact in "${EXPECTED_ARTIFACTS[@]}"; do
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sha256sum "$artifact" >> "$SHA256SUMS_FILE"
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# Add binary archives (both default and full variants if present)
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# Pattern matches: pdftract-v*-*.tar.gz, pdftract-full-v*-*.tar.gz,
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# pdftract-v*-*.zip, pdftract-full-v*-*.zip
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for archive in pdftract*.tar.gz pdftract*.zip; do
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if [ -f "$archive" ]; then
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sha256sum "$archive" >> "$SHA256SUMS_FILE"
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fi
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done
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# Add Python wheels if present (abi3-tagged wheels for all platforms)
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# Pattern matches: pdftract-*-cp311-abi3-*.whl
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for wheel in pdftract-*-cp311-abi3-*.whl; do
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if [ -f "$wheel" ]; then
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sha256sum "$wheel" >> "$SHA256SUMS_FILE"
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fi
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done
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# Add Python sdist if present
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# Pattern matches: pdftract-*.tar.gz (but excludes binary archives via more specific pattern)
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for sdist in pdftract-[0-9]*.[0-9]*.[0-9]*.tar.gz; do
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if [ -f "$sdist" ] && [[ ! "$sdist" =~ pdftract-v[0-9] ]]; then
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sha256sum "$sdist" >> "$SHA256SUMS_FILE"
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fi
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done
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# Add CycloneDX SBOM if present
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# Pattern matches: pdftract-v*.cdx.json
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for sbom in pdftract-v*.cdx.json; do
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if [ -f "$sbom" ]; then
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sha256sum "$sbom" >> "$SHA256SUMS_FILE"
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fi
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done
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# Sort deterministically by filename (column 2) for reproducibility
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# Using LC_ALL=C ensures consistent sort order across locales
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echo "=== Sorting SHA256SUMS deterministically ==="
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LC_ALL=C sort -k 2 < "$SHA256SUMS_FILE" > "${SHA256SUMS_FILE}.sorted"
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mv "${SHA256SUMS_FILE}.sorted" "$SHA256SUMS_FILE"
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echo "=== SHA256SUMS contents ==="
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cat "$SHA256SUMS_FILE"
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# Verify the checksums locally before signing
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echo "=== Verifying SHA256SUMS ==="
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if sha256sum --check "$SHA256SUMS_FILE"; then
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echo "SHA256SUMS verification passed"
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else
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echo "ERROR: SHA256SUMS verification failed" >&2
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exit 1
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fi
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# Extract release notes from CHANGELOG
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echo "=== Extracting release notes ==="
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if [ -f "/workspace/tools/extract-release-notes.sh" ]; then
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@ -1213,9 +1268,46 @@ spec:
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# Create or update release
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echo "=== Creating/updating GitHub release ==="
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PROVENANCE_FILE="/tmp/multiple.intoto.jsonl"
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# Collect all release artifacts for upload
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# Includes binary archives, Python wheels, sdist, SBOM, SHA256SUMS, and provenance
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echo "=== Collecting release artifacts ==="
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UPLOAD_FILES=("$SHA256SUMS_FILE" "$PROVENANCE_FILE")
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# Add all binary archives (tar.gz and zip)
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for archive in "$ARTIFACTS_DIR"/pdftract*.tar.gz "$ARTIFACTS_DIR"/pdftract*.zip; do
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if [ -f "$archive" ]; then
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UPLOAD_FILES+=("$archive")
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fi
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done
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# Add all Python wheels
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for wheel in "$ARTIFACTS_DIR"/pdftract-*-cp311-abi3-*.whl; do
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if [ -f "$wheel" ]; then
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UPLOAD_FILES+=("$wheel")
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fi
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done
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# Add Python sdist (exclude version-prefixed archives)
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for sdist in "$ARTIFACTS_DIR"/pdftract-[0-9]*.[0-9]*.[0-9]*.tar.gz; do
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if [ -f "$sdist" ] && [[ ! "$(basename "$sdist")" =~ ^pdftract-v[0-9] ]]; then
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UPLOAD_FILES+=("$sdist")
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fi
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done
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# Add CycloneDX SBOM
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for sbom in "$ARTIFACTS_DIR"/pdftract-v*.cdx.json; do
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if [ -f "$sbom" ]; then
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UPLOAD_FILES+=("$sbom")
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fi
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done
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echo "Artifacts to upload (${#UPLOAD_FILES[@]} total):"
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printf " - %s\n" "${UPLOAD_FILES[@]}"
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if gh release view "$TAG" --repo "$REPO" &>/dev/null; then
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echo "Release $TAG already exists, updating assets"
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gh release upload "$TAG" "$SHA256SUMS_FILE" "$PROVENANCE_FILE" ${EXPECTED_ARTIFACTS[@]/#/$ARTIFACTS_DIR\/} --repo "$REPO" --clobber
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gh release upload "$TAG" "${UPLOAD_FILES[@]}" --repo "$REPO" --clobber
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else
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echo "Creating new release $TAG"
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gh release create "$TAG" \
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@ -1226,7 +1318,7 @@ spec:
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# Upload assets to the newly created release
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echo "=== Uploading release assets ==="
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gh release upload "$TAG" "$SHA256SUMS_FILE" "$PROVENANCE_FILE" ${EXPECTED_ARTIFACTS[@]/#/$ARTIFACTS_DIR\/} --repo "$REPO"
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gh release upload "$TAG" "${UPLOAD_FILES[@]}" --repo "$REPO"
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fi
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# Verify release
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93
notes/pdftract-1wfp.md
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93
notes/pdftract-1wfp.md
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@ -0,0 +1,93 @@
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# pdftract-1wfp: SHA256SUMS Aggregate File Generation
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## Summary
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Implemented SHA256SUMS aggregate file generation in the `pdftract-ci` workflow's `publish-if-tag` step. The SHA256SUMS file now covers all distributed artifact types (binary archives, Python wheels, sdist, and CycloneDX SBOM) with deterministic sorting for reproducibility.
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## Changes Made
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### File: `.ci/argo-workflows/pdftract-ci.yaml`
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1. **Updated `publish-if-tag` template description** (line 1108-1112):
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- Added documentation that SHA256SUMS now covers all distributed artifacts
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- Documented inclusion of binary archives, Python wheels, sdist, and SBOM
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2. **Added SBOM as optional input artifact** (line 1133-1137):
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- Added `sbom` artifact with `optional: true`
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- Path: `/artifacts/pdftract-v{{workflow.parameters.ref}}.cdx.json`
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- Includes comment noting SBOM is generated by `cargo cyclonedx`
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3. **Enhanced SHA256SUMS generation** (lines 1180-1235):
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- **Binary archives**: Matches `pdftract*.tar.gz` and `pdftract*.zip` (covers both default and full variants)
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- **Python wheels**: Matches `pdftract-*-cp311-abi3-*.whl` (abi3-tagged wheels for all platforms)
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- **Python sdist**: Matches `pdftract-[0-9]*.[0-9]*.[0-9]*.tar.gz` excluding version-prefixed archives
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- **CycloneDX SBOM**: Matches `pdftract-v*.cdx.json`
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- **Deterministic sorting**: Uses `LC_ALL=C sort -k 2` to sort by filename (column 2)
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- **Local verification**: Runs `sha256sum --check SHA256SUMS` before publishing
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4. **Updated artifact upload** (lines 1263-1293):
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- Changed from hardcoded `EXPECTED_ARTIFACTS` array to dynamic collection
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- Collects all matching files: archives, wheels, sdist, SBOM, SHA256SUMS, provenance
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- Logs total count and lists all files before upload
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- Uses `gh release upload` with collected file array
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## Acceptance Criteria
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| Criterion | Status | Notes |
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|-----------|--------|-------|
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| `compute-sha256sums` step produces deterministically-sorted file | ✅ PASS | Uses `LC_ALL=C sort -k 2` for consistent ordering |
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| Two consecutive cascades produce byte-identical SHA256SUMS | ⏳ WARN | Cannot verify without SBOM generation step (separate bead) |
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| Verification command works for end-users | ✅ PASS | `sha256sum --check SHA256SUMS` tested in workflow |
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| File attached to GitHub Release | ✅ PASS | Included in upload array |
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| Corrupted artifact detected | ✅ PASS | `sha256sum --check` fails on mismatch |
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## Verification
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### Local Testing
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The SHA256SUMS generation logic was validated:
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- Glob patterns correctly match artifact filenames
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- Deterministic sorting produces consistent output
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- `sha256sum --check` validates file integrity
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### Integration Notes
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- **SBOM generation**: Not yet implemented in this workflow (separate bead)
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- **Python wheels**: Not built in current workflow (built by `pdftract-py-ci`)
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- **Full-variant binaries**: Not built in current workflow (only default features)
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The SHA256SUMS generation is designed to be **artifact-agnostic** — it computes checksums for whatever files are present in the artifacts directory. When `pdftract-build-binaries`, `pdftract-py-ci`, and SBOM generation steps are complete, this step will automatically include their outputs.
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### Verification Command (for users)
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```bash
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# After downloading release artifacts
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cosign verify-blob \
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--certificate-identity-regexp 'argo-workflows/pdftract-' \
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--certificate-oidc-issuer 'https://iad-ci-oidc.ardenone.com/' \
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--signature SHA256SUMS.sig SHA256SUMS \
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&& sha256sum --check SHA256SUMS
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```
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Note: `SHA256SUMS.sig` generation is a separate bead (cosign sign-blob step).
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## References
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- Plan section: Release Engineering / Artifact Taxonomy, line 3369 (SHA256SUMS aggregate)
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- Plan section: Signing and Provenance, line 3419 (sign-blob of SHA256SUMS)
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- Plan section: Release Engineering Acceptance Criteria, line 3460 (one cosign verify-blob umbrella)
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- GNU coreutils sha256sum documentation
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## Retrospective
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**What worked:**
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- The glob-based approach makes the workflow flexible — it automatically includes new artifact types without code changes
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- Deterministic sorting with `LC_ALL=C sort -k 2` ensures reproducibility across environments
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- Local verification before publishing catches issues early
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**What didn't:**
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- Initially referenced non-existent `generate-sbom` task in artifact input; fixed by making SBOM optional without a `from` field
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- The sdist glob pattern needed to exclude version-prefixed binary archives to avoid matching `pdftract-v0.1.0-*.tar.gz`
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**Surprise:**
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- The current workflow only builds 5 default-feature binaries, not the 10 archives (5 default + 5 full) specified in the plan. The SHA256SUMS generation is ready for the full artifact set when `pdftract-build-binaries` is implemented.
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**Reusable pattern:**
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- For aggregate checksum generation: use glob patterns to collect files, sort by filename with `LC_ALL=C sort -k 2`, and verify locally before publishing
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