name: build

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

# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions
permissions:
  contents: read

on:
  push:
    branches:
      - 'master'
    tags:
      - 'v*'
  pull_request:

env:
  DOCKERHUB_SLUG: crazymax/diun
  GHCR_SLUG: ghcr.io/crazy-max/diun
  DESTDIR: ./bin
  DOCKER_BUILD_SUMMARY: false
  SCOUT_VERSION: "1.18.2"

jobs:
  prepare:
    runs-on: ubuntu-latest
    outputs:
      validate-includes: ${{ steps.validate.outputs.matrix }}
    steps:
      -
        name: Checkout
        uses: actions/checkout@v6
      -
        name: Validate matrix
        id: validate
        uses: docker/bake-action/subaction/matrix@v6
        with:
          target: validate
          fields: platforms
        env:
          GOLANGCI_LINT_MULTIPLATFORM: 1

  validate:
    runs-on: ubuntu-latest
    needs:
      - prepare
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJson(needs.prepare.outputs.validate-includes) }}
    steps:
      -
        name: Checkout
        uses: actions/checkout@v6
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Validate
        uses: docker/bake-action@v6
        with:
          source: .
          targets: ${{ matrix.target }}
          set: |
            *.platform=${{ matrix.platforms }}

  test:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 0
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Test
        uses: docker/bake-action@v6
        with:
          source: .
          targets: test
          pull: true
      -
        name: Upload coverage
        uses: codecov/codecov-action@v5
        with:
          directory: ${{ env.DESTDIR }}/coverage
          token: ${{ secrets.CODECOV_TOKEN }}

  govulncheck:
    runs-on: ubuntu-latest
    permissions:
      # same as global permission
      contents: read
      # required to write sarif report
      security-events: write
    steps:
      -
        name: Checkout
        uses: actions/checkout@v6
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Run
        uses: docker/bake-action@v6
        with:
          source: .
          targets: govulncheck
        env:
          GOVULNCHECK_FORMAT: sarif
      -
        name: Upload SARIF report
        if: ${{ github.ref == 'refs/heads/master' }}
        uses: github/codeql-action/upload-sarif@v4
        with:
          sarif_file: ${{ env.DESTDIR }}/govulncheck.out

  artifacts:
    uses: docker/github-builder-experimental/.github/workflows/bake.yml@8fc70909404a502fd0eca6601b99b32fa7192b03
    permissions:
      contents: read # same as global permission
      id-token: write # for signing attestation(s) with GitHub OIDC Token
    with:
      runner: amd64
      target: artifact-all
      output: local
      push: ${{ github.event_name != 'pull_request' }}
      artifact-name: diun
      bake-sbom: true

  artifacts-finalize:
    runs-on: ubuntu-latest
    needs:
      - artifacts
    steps:
      -
        name: Download artifacts
        uses: actions/download-artifact@v6
        with:
          path: /tmp/buildx-output
          pattern: ${{ needs.artifacts.outputs.artifact-name }}*
          merge-multiple: true
      -
        name: Rename provenance and sbom
        run: |
          for pdir in /tmp/buildx-output/*/; do
            (
              cd "$pdir"
              binname=$(find . -name 'diun_*')
              filename=$(basename "$binname" | sed -E 's/\.(tar\.gz|zip)$//')
              mv "provenance.json" "${filename}.provenance.json"
              mv "sbom-binary.spdx.json" "${filename}.sbom.json"
              find . -name 'sbom*.json' -exec rm {} \;
              if [ -f "provenance.sigstore.json" ]; then
                mv "provenance.sigstore.json" "${filename}.provenance.sigstore.json"
              fi
            )
          done
          mkdir -p "${{ env.DESTDIR }}"
          mv /tmp/buildx-output/**/* "${{ env.DESTDIR }}/"
      -
        name: List artifacts
        working-directory: ${{ env.DESTDIR }}
        run: |
          tree -nh .
      -
        name: Check artifacts
        working-directory: ${{ env.DESTDIR }}
        run: |
          find . -type f -exec file -e ascii -- {} +
      -
        name: Upload release binaries
        uses: actions/upload-artifact@v5
        with:
          name: release
          path: ${{ env.DESTDIR }}/*
          if-no-files-found: error

  release:
    runs-on: ubuntu-latest
    permissions:
      # required to create GitHub release
      contents: write
    needs:
      - artifacts-finalize
      - test
    steps:
      -
        name: Checkout
        uses: actions/checkout@v6
      -
        name: Download release binaries
        uses: actions/download-artifact@v6
        with:
          path: ${{ env.DESTDIR }}/artifact
          name: release
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Build
        uses: docker/bake-action@v6
        with:
          source: .
          targets: release
          provenance: false
      -
        name: List artifacts
        working-directory: ${{ env.DESTDIR }}/release
        run: |
          tree -nh .
      -
        name: GitHub Release
        uses: softprops/action-gh-release@v2
        if: startsWith(github.ref, 'refs/tags/')
        with:
          draft: true
          files: |
            ${{ env.DESTDIR }}/release/*
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

  image-prepare:
    runs-on: ubuntu-latest
    outputs:
      repo-slugs: |
        ${{ env.DOCKERHUB_SLUG }}
        ${{ env.GHCR_SLUG }}
    steps:
      # FIXME: can't use env object in reusable workflow inputs: https://github.com/orgs/community/discussions/26671
      - run: echo "Exposing env vars for reusable workflow"

  image:
    uses: docker/github-builder-experimental/.github/workflows/bake.yml@8fc70909404a502fd0eca6601b99b32fa7192b03
    permissions:
      contents: read # same as global permission
      id-token: write # for signing attestation(s) with GitHub OIDC Token
    needs:
      - image-prepare
      - artifacts-finalize
      - test
    with:
      runner: amd64
      target: image-all
      output: image
      push: ${{ github.event_name != 'pull_request' }}
      set-meta-labels: true
      meta-images: |
        ${{ needs.image-prepare.outputs.repo-slugs }}
      meta-tags: |
        type=semver,pattern={{version}}
        type=semver,pattern={{major}}.{{minor}}
        type=semver,pattern={{major}}
        type=ref,event=pr
        type=edge
      meta-labels: |
        org.opencontainers.image.title=Diun
        org.opencontainers.image.description=Docker image update notifier
        org.opencontainers.image.vendor=CrazyMax
      bake-sbom: true
    secrets:
      registry-auths: |
        - registry: docker.io
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
        - registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

  scout:
    runs-on: ubuntu-latest
    if: ${{ github.ref == 'refs/heads/master' }}
    permissions:
      # same as global permission
      contents: read
      # required to write sarif report
      security-events: write
    needs:
      - image
    steps:
      -
        name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_PASSWORD }}
      -
        name: Scout
        id: scout
        uses: crazy-max/.github/.github/actions/docker-scout@ccae1c98f1237b5c19e4ef77ace44fa68b3bc7e4
        with:
          version: ${{ env.SCOUT_VERSION }}
          format: sarif
          image: registry://${{ env.DOCKERHUB_SLUG }}:edge
      -
        name: Upload SARIF report
        uses: github/codeql-action/upload-sarif@v4
        with:
          sarif_file: ${{ steps.scout.outputs.result-file }}