build-push.yml

---
name: Build & Push

on:
  merge_group:
  pull_request:
  push:
    tags: ["v*.*.*"]
  workflow_dispatch:

concurrency:
  group: ${{ github.ref }}-${{ github.workflow }}
  cancel-in-progress: true

permissions:
  contents: read

env:
  REGISTRY: ghcr.io

jobs:
  build-push:
    runs-on: ubuntu-latest
    permissions:
      attestations: write
      # dependency-submission needs contents write permission.
      contents: write
      # attest-build-provenance needs id-token write permission.
      id-token: write
      packages: write
      pull-requests: write
    strategy:
      matrix:
        flavor: ["cpp", "rust"]
    steps:
      - uses: step-security/harden-runner@0634a2670c59f64b4a01f0f96f84700a4088b9f0 # v2.12.0
        with:
          egress-policy: audit
      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
        with:
          persist-credentials: false
      - uses: docker/setup-buildx-action@b5ca514318bd6ebac0fb2aedd5d36ec1b5c232a2 # v3.10.0
      - uses: docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772 # v3.4.0
        if: github.event_name != 'merge_group'
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
        if: matrix.flavor == 'cpp'
        id: buildkit-cache
        with:
          path: root-ccache
          key: buildkit-cache-${{ github.run_id }}
          restore-keys: |
            buildkit-cache
      - uses: reproducible-containers/buildkit-cache-dance@653a570f730e3b9460adc576db523788ba59a0d7 # v3.2.0
        if: matrix.flavor == 'cpp'
        with:
          cache-map: |
            {
              "root-ccache": "/root/.ccache"
            }
          skip-extraction: ${{ steps.buildkit-cache.outputs.cache-hit }}
      - uses: docker/metadata-action@902fa8ec7d6ecbf8d84d538b9b233a880e428804 # v5.7.0
        id: metadata
        env:
          DOCKER_METADATA_ANNOTATIONS_LEVELS: manifest,index
        with:
          images: ${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}
          # Generate Docker tags based on the following events/attributes
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=pr
            type=semver,pattern={{raw}}
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
      # Generate image LABEL for devcontainer.metadata
      # the sed expression is a workaround for quotes being eaten in arrays (e.g. ["x", "y", "z"] -> ["x",y,"z"])
      - run: echo "metadata=$(jq -cj '[.]' .devcontainer/${{ matrix.flavor }}/devcontainer-metadata-vscode.json | sed 's/,"/, "/g')" >> "$GITHUB_OUTPUT"
        id: devcontainer-metadata
      - run: echo "git-commit-epoch=$(git log -1 --pretty=%ct)" >> "$GITHUB_OUTPUT"
        id: devcontainer-epoch
      - uses: docker/build-push-action@14487ce63c7a62a4a324b0bfb37086795e31c6c1 # v6.16.0
        id: build-and-push
        env:
          SOURCE_DATE_EPOCH: ${{ steps.devcontainer-epoch.outputs.git-commit-epoch }}
        with:
          file: .devcontainer/${{ matrix.flavor }}/Dockerfile
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'merge_group' }}
          tags: ${{ steps.metadata.outputs.tags }}
          labels: |
            ${{ steps.metadata.outputs.labels }}
            devcontainer.metadata=${{ steps.devcontainer-metadata.outputs.metadata }}
          annotations: ${{ steps.metadata.outputs.annotations }}
          sbom: true
          cache-from: type=gha,scope=${{ github.repository }}-${{ matrix.flavor }}
          cache-to: type=gha,mode=max,scope=${{ github.repository }}-${{ matrix.flavor }}
      - uses: ./.github/actions/container-size-diff
        id: container-size-diff
        with:
          from-container: ${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}:latest
          to-container: ${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}@${{ steps.build-and-push.outputs.digest }}
      - uses: marocchino/sticky-pull-request-comment@67d0dec7b07ed060a405f9b2a64b8ab319fdd7db # v2.9.2
        with:
          header: container-size-diff-${{ matrix.flavor }}
          message: |
            ${{ steps.container-size-diff.outputs.size-diff-markdown }}
      - uses: anchore/sbom-action@9f7302141466aa6482940f15371237e9d9f4c34a # v0.19.0
        if: steps.build-and-push.outputs.digest != '' && github.event_name != 'merge_group'
        with:
          image: ${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}@${{ steps.build-and-push.outputs.digest }}
          dependency-snapshot: true
      - uses: actions/dependency-review-action@ce3cf9537a52e8119d91fd484ab5b8a807627bf8 # v4.6.0
        if: github.event_name == 'pull_request'
        with:
          comment-summary-in-pr: on-failure
          fail-on-severity: critical
      - uses: actions/attest-build-provenance@db473fddc028af60658334401dc6fa3ffd8669fd # v2.3.0
        if: github.event_name != 'merge_group'
        with:
          subject-name: ${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}
          subject-digest: ${{ steps.build-and-push.outputs.digest }}
          push-to-registry: true
      - name: Verify attestation
        if: github.event_name != 'merge_group'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh attestation verify --repo ${{ github.repository }} oci://${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}@${{ steps.build-and-push.outputs.digest }}
      - name: Upload provenance to release
        if: startsWith(github.ref, 'refs/tags/')
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          gh attestation verify --repo ${{ github.repository }} oci://${{ env.REGISTRY }}/${{ github.repository }}-${{ matrix.flavor }}@${{ steps.build-and-push.outputs.digest }} --format json --jq '.[] | .attestation.bundle.dsseEnvelope | select(.payloadType == "application/vnd.in-toto+json").payload' | base64 -d | jq . > ${{ github.repository_owner }}-${{ github.event.repository.name }}-${{ matrix.flavor }}_sha256_${{ steps.build-and-push.outputs.digest }}.intoto.jsonl
          gh release upload ${{ github.ref_name }} ./*.intoto.jsonl
      - name: Update package details in release
        if: startsWith(github.ref, 'refs/tags/')
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          UPDATED_NOTES=$(gh release view ${{ github.ref_name }} --json body -q '.body')
          UPDATED_NOTES=${UPDATED_NOTES//'{{ amp-devcontainer-${{ matrix.flavor }}-version }}'/'${{ github.ref_name }}'}
          UPDATED_NOTES=${UPDATED_NOTES//'{{ amp-devcontainer-${{ matrix.flavor }}-sha }}'/'${{ steps.build-and-push.outputs.digest }}'}
          gh release edit ${{ github.ref_name }} --notes "${UPDATED_NOTES}"
  acceptance-test:
    if: github.event_name == 'pull_request'
    needs: build-push
    secrets: inherit
    uses: ./.github/workflows/acceptance-test.yml
    with:
      flavor: cpp