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ci: add release workflow with WASM and native builds
Adds automated release workflow following PulseEngine patterns: - Native binaries for Linux x64, macOS x64/ARM64, Windows x64 - WASM build (wasm32-wasip2) published to ghcr.io - Cosign keyless signing with GitHub OIDC - SLSA provenance attestation - SHA256 checksums for all artifacts - Triggered on release publish or manual workflow_dispatch
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‎.github/workflows/release.yml‎

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name: Release
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on:
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release:
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types: [published]
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workflow_dispatch:
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inputs:
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tag:
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description: 'Release tag (e.g., v0.1.0)'
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required: true
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type: string
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env:
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REGISTRY: ghcr.io
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IMAGE_NAME: pulseengine/loom
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jobs:
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build-native:
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name: Build Native (${{ matrix.os }})
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runs-on: ${{ matrix.os }}
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strategy:
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matrix:
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include:
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- os: ubuntu-latest
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target: x86_64-unknown-linux-gnu
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artifact: loom-linux-x64
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binary: loom
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- os: macos-latest
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target: x86_64-apple-darwin
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artifact: loom-macos-x64
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binary: loom
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- os: macos-latest
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target: aarch64-apple-darwin
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artifact: loom-macos-arm64
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binary: loom
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- os: windows-latest
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target: x86_64-pc-windows-msvc
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artifact: loom-windows-x64
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binary: loom.exe
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steps:
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- uses: actions/checkout@v5
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- uses: dtolnay/rust-toolchain@stable
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with:
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targets: ${{ matrix.target }}
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- uses: Swatinem/rust-cache@v2
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with:
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key: release-${{ matrix.target }}
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- name: Build release binary
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run: cargo build --release --target ${{ matrix.target }}
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- name: Create artifact directory
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shell: bash
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run: |
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mkdir -p artifacts
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cp target/${{ matrix.target }}/release/${{ matrix.binary }} artifacts/
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cd artifacts
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if [ "${{ runner.os }}" = "Windows" ]; then
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7z a ../${{ matrix.artifact }}.zip ${{ matrix.binary }}
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else
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tar -czvf ../${{ matrix.artifact }}.tar.gz ${{ matrix.binary }}
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fi
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: ${{ matrix.artifact }}
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path: |
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${{ matrix.artifact }}.tar.gz
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${{ matrix.artifact }}.zip
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build-wasm:
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name: Build WASM (wasm32-wasip2)
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v5
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- uses: dtolnay/rust-toolchain@stable
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with:
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targets: wasm32-wasip2
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- uses: Swatinem/rust-cache@v2
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with:
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key: release-wasm
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- name: Install wasi-sdk
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run: |
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WASI_SDK_VERSION=25
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wget -q https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-${WASI_SDK_VERSION}/wasi-sdk-${WASI_SDK_VERSION}.0-x86_64-linux.tar.gz -O wasi-sdk.tar.gz
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sudo mkdir -p /opt/wasi-sdk
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sudo tar -xzf wasi-sdk.tar.gz -C /opt/wasi-sdk --strip-components=1
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rm wasi-sdk.tar.gz
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- name: Build WASM binary
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env:
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WASI_SDK_PREFIX: /opt/wasi-sdk
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run: |
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cargo build --release --target wasm32-wasip2 --package loom-cli
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mkdir -p artifacts
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cp target/wasm32-wasip2/release/loom.wasm artifacts/
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: loom-wasm
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path: artifacts/loom.wasm
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release:
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name: Create Release
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needs: [build-native, build-wasm]
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runs-on: ubuntu-latest
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permissions:
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contents: write
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packages: write
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id-token: write # For Cosign keyless signing
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steps:
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- uses: actions/checkout@v5
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- name: Download all artifacts
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uses: actions/download-artifact@v4
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with:
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path: artifacts
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- name: Prepare release files
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run: |
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mkdir -p release
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# Move native binaries
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for dir in artifacts/loom-*; do
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if [ -d "$dir" ]; then
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name=$(basename "$dir")
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# Find the archive file (tar.gz or zip)
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archive=$(find "$dir" -name "*.tar.gz" -o -name "*.zip" | head -1)
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if [ -n "$archive" ]; then
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cp "$archive" release/
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fi
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fi
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done
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# Move WASM binary
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cp artifacts/loom-wasm/loom.wasm release/
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ls -la release/
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- name: Create SHA256 checksums
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run: |
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cd release
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for file in *; do
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sha256sum "$file" > "$file.sha256"
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done
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cat *.sha256
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- name: Install Cosign
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uses: sigstore/cosign-installer@v3
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- name: Log in to Container Registry
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uses: docker/login-action@v3
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with:
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registry: ${{ env.REGISTRY }}
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Publish OCI Artifact
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run: |
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# Install oras
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VERSION="1.2.2"
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curl -LO "https://github.com/oras-project/oras/releases/download/v${VERSION}/oras_${VERSION}_linux_amd64.tar.gz"
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mkdir -p oras-install/
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tar -zxf "oras_${VERSION}_linux_amd64.tar.gz" -C oras-install/
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sudo mv oras-install/oras /usr/local/bin/
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rm -rf "oras_${VERSION}_linux_amd64.tar.gz" oras-install/
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# Determine tag
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if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
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TAG="${{ inputs.tag }}"
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else
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TAG="${{ github.event.release.tag_name }}"
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fi
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# Create OCI artifact references
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IMAGE_TAG="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${TAG}"
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IMAGE_LATEST="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest"
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# Push WASM file as OCI artifact
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echo "Publishing loom.wasm to OCI registry..."
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oras push "${IMAGE_TAG}" \
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--artifact-type application/vnd.wasm.component.layer.v1+wasm \
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release/loom.wasm:application/vnd.wasm.component.layer.v1+wasm
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# Tag as latest
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oras tag "${IMAGE_TAG}" latest
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echo "Published OCI artifacts:"
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echo " ${IMAGE_TAG}"
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echo " ${IMAGE_LATEST}"
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echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_ENV
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echo "IMAGE_LATEST=${IMAGE_LATEST}" >> $GITHUB_ENV
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echo "RELEASE_TAG=${TAG}" >> $GITHUB_ENV
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- name: Sign OCI Artifact with Cosign
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run: |
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echo "Signing OCI artifact with Cosign (keyless)..."
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cosign sign --yes "${IMAGE_TAG}"
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cosign sign --yes "${IMAGE_LATEST}"
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echo "✅ OCI artifact signed"
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- name: Generate SLSA Provenance
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run: |
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cat > provenance.json <<EOF
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{
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"buildType": "https://github.com/pulseengine/loom/release@v1",
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"builder": {
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"id": "https://github.com/actions/runner"
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},
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"invocation": {
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"configSource": {
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"uri": "${{ github.server_url }}/${{ github.repository }}",
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"digest": {
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"sha1": "${{ github.sha }}"
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}
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}
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},
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"metadata": {
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"buildStartedOn": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
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"completeness": {
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"parameters": true,
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"environment": false,
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"materials": false
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}
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},
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"materials": [
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{
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"uri": "${{ github.server_url }}/${{ github.repository }}",
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"digest": {
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"sha1": "${{ github.sha }}"
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}
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}
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]
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}
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EOF
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cosign attest --yes \
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--predicate provenance.json \
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--type slsaprovenance \
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"${IMAGE_TAG}"
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echo "✅ SLSA provenance attestation created"
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- name: Verify Signature
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run: |
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cosign verify \
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--certificate-identity-regexp="https://github.com/${{ github.repository }}" \
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--certificate-oidc-issuer="https://token.actions.githubusercontent.com" \
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"${IMAGE_TAG}" || echo "Note: Verification may require specific conditions"
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echo "✅ Signature verification completed"
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- name: Upload Release Assets
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uses: softprops/action-gh-release@v2
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with:
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files: |
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release/*
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body: |
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## 🎉 LOOM WebAssembly Optimizer Release
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### 📦 Downloads
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**Native Binaries:**
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| Platform | Architecture | Download |
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|----------|--------------|----------|
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| Linux | x64 | `loom-linux-x64.tar.gz` |
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| macOS | x64 | `loom-macos-x64.tar.gz` |
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| macOS | ARM64 | `loom-macos-arm64.tar.gz` |
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| Windows | x64 | `loom-windows-x64.zip` |
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**WebAssembly:**
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- `loom.wasm` - WASI component (wasm32-wasip2)
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- OCI Artifact: `${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.RELEASE_TAG }}`
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### 🔐 Security
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- ✅ **OCI Signing** - Signed with Cosign (keyless GitHub OIDC)
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- ✅ **SLSA Provenance** - Build attestation included
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- ✅ **SHA256 Checksums** - All files have `.sha256` checksums
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### 🚀 Quick Start
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```bash
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# Linux/macOS
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tar -xzf loom-linux-x64.tar.gz
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./loom optimize input.wasm -o output.wasm --stats
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# Or pull from OCI registry
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oras pull ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.RELEASE_TAG }}
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```
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### 🔍 Verify
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```bash
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# Verify checksum
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sha256sum -c loom-linux-x64.tar.gz.sha256
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# Verify OCI signature
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cosign verify \
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--certificate-identity-regexp="https://github.com/${{ github.repository }}" \
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--certificate-oidc-issuer="https://token.actions.githubusercontent.com" \
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${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.RELEASE_TAG }}
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# Verify SLSA provenance
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cosign verify-attestation \
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--type slsaprovenance \
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--certificate-identity-regexp="https://github.com/${{ github.repository }}" \
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--certificate-oidc-issuer="https://token.actions.githubusercontent.com" \
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${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.RELEASE_TAG }}
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```
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### 📚 Documentation
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See [README.md](https://github.com/${{ github.repository }}) for usage details.
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tag_name: ${{ github.event_name == 'workflow_dispatch' && inputs.tag || github.event.release.tag_name }}
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- name: Create Release Summary
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run: |
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echo "## 🚀 Release Summary" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "### 📦 Published Artifacts" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**Native Binaries:**" >> $GITHUB_STEP_SUMMARY
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echo "- \`loom-linux-x64.tar.gz\`" >> $GITHUB_STEP_SUMMARY
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echo "- \`loom-macos-x64.tar.gz\`" >> $GITHUB_STEP_SUMMARY
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echo "- \`loom-macos-arm64.tar.gz\`" >> $GITHUB_STEP_SUMMARY
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echo "- \`loom-windows-x64.zip\`" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "**WebAssembly:**" >> $GITHUB_STEP_SUMMARY
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echo "- \`loom.wasm\` ($(ls -lh release/loom.wasm | awk '{print $5}'))" >> $GITHUB_STEP_SUMMARY
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echo "- OCI: \`${IMAGE_TAG}\`" >> $GITHUB_STEP_SUMMARY
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echo "" >> $GITHUB_STEP_SUMMARY
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echo "### 🔐 Security" >> $GITHUB_STEP_SUMMARY
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echo "- ✅ OCI artifact signed with Cosign (keyless)" >> $GITHUB_STEP_SUMMARY
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echo "- ✅ SLSA provenance attestation" >> $GITHUB_STEP_SUMMARY
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echo "- ✅ SHA256 checksums for all files" >> $GITHUB_STEP_SUMMARY

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