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841040e781
Draft releases do not fire the `release: created` event, so the release workflow never ran and the source zip and SLSA provenance were not attached to the draft. Trigger the workflow explicitly from release.py via workflow_dispatch, passing the tag to attach to and the ref to build from, and resolve the tag/ref in the workflow for both event types.
93 lines
3.2 KiB
YAML
93 lines
3.2 KiB
YAML
# Builds the release source package in CI for a draft release (typically
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# created via support/release.py), uploads the zip to that release, and
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# attaches a SLSA v1.0 provenance attestation generated by the OpenSSF
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# slsa-github-generator. The maintainer reviews the draft (which by then has
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# both the zip and *.intoto.jsonl attached) and clicks Publish to finalize.
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#
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# This makes the provenance attest to the actual build that produced the
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# artifact, rather than just attesting to a hash observed after the fact.
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#
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# GitHub does not fire `release: created` for draft releases, so release.py
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# triggers this workflow explicitly via workflow_dispatch, passing the tag to
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# attach to and the ref to build from. The `release: created` trigger is kept
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# for non-draft releases created directly through the GitHub UI.
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name: release
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on:
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release:
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types: [created]
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workflow_dispatch:
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inputs:
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tag_name:
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description: "Release tag to attach the artifacts to (e.g. 12.2.0)"
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required: true
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type: string
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ref:
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description: "Git ref to build the source package from"
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required: false
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default: release
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type: string
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permissions: read-all
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jobs:
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build:
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name: Build source package
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runs-on: ubuntu-latest
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permissions:
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contents: write
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outputs:
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hashes: ${{ steps.hash.outputs.hashes }}
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package: ${{ steps.build.outputs.package }}
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tag: ${{ steps.vars.outputs.tag }}
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steps:
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- name: Resolve tag and ref for both event types
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id: vars
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run: |
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echo "tag=${{ github.event.release.tag_name || inputs.tag_name }}" >> "$GITHUB_OUTPUT"
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echo "ref=${{ github.event.release.target_commitish || inputs.ref }}" >> "$GITHUB_OUTPUT"
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- name: Checkout the release ref
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uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
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with:
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ref: ${{ steps.vars.outputs.ref }}
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persist-credentials: false
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- name: Build source zip via CPack
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id: build
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run: |
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cmake -B build .
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cmake --build build --target package_source
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pkg=$(ls build/fmt-*.zip)
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test -f "$pkg"
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echo "package=$pkg" >> "$GITHUB_OUTPUT"
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- name: Compute base64-encoded SHA-256 subjects
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id: hash
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run: |
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file="${{ steps.build.outputs.package }}"
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subjects=$(cd "$(dirname "$file")" && sha256sum "$(basename "$file")")
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echo "hashes=$(printf '%s' "$subjects" | base64 -w0)" >> "$GITHUB_OUTPUT"
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- name: Upload zip to the release
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env:
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GH_TOKEN: ${{ github.token }}
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run: |
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gh release upload "${{ steps.vars.outputs.tag }}" \
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"${{ steps.build.outputs.package }}" \
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--repo "${{ github.repository }}" --clobber
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provenance:
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needs: [build]
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permissions:
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actions: read
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id-token: write
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contents: write
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uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v2.1.0
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with:
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base64-subjects: ${{ needs.build.outputs.hashes }}
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provenance-name: "fmt-${{ needs.build.outputs.tag }}.intoto.jsonl"
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upload-assets: true
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upload-tag-name: ${{ needs.build.outputs.tag }}
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