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name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

permissions: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

jobs:
  test:
    name: Test
    runs-on: ubuntu-latest
    permissions:
      contents: read # checkout
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
        with:
          persist-credentials: false
      - run: rustup component add clippy rustfmt llvm-tools
      - run: |
          curl -sL https://github.com/casey/just/releases/download/1.50.0/just-1.50.0-x86_64-unknown-linux-musl.tar.gz |
            tar xz -C /usr/local/bin
          curl -sL https://github.com/marco-c/grcov/releases/download/v0.10.7/grcov-x86_64-unknown-linux-gnu.tar.bz2 |
            tar xj -C /usr/local/bin
      - run: cargo fmt --check
      - run: just clippy coverage

  zizmor:
    name: Audit workflows
    runs-on: ubuntu-latest
    permissions:
      contents: read # checkout
      security-events: write # upload SARIF to code scanning
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
        with:
          persist-credentials: false
      - uses: zizmorcore/zizmor-action@cc914d7f3750a2d13d75c7f184a1060aa0e9d482 # v0.6.4

  build:
    name: Build
    needs: test
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    runs-on: ubuntu-latest
    permissions:
      contents: write # create GitHub release
      packages: write # push container image to GHCR
    outputs:
      version: ${{ steps.meta.outputs.version }}
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
        with:
          persist-credentials: false
      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4
      - uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - id: short-sha
        run: echo "sha=${GITHUB_SHA::7}" >> "$GITHUB_OUTPUT"
      - uses: docker/metadata-action@dc802804100637a589fabce1cb79ff13a1411302 # v6
        id: meta
        with:
          images: ghcr.io/${{ github.repository }}
          flavor: latest=true
          tags: |
            type=raw,value={{date 'YYYYMMDD-HHmm'}}-${{ steps.short-sha.outputs.sha }}
      - uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          build-args: DOCKET_VERSION=${{ steps.meta.outputs.version }}
          cache-from: type=gha
          cache-to: type=gha,mode=max
      - env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          STEPS_META_OUTPUTS_VERSION: ${{ steps.meta.outputs.version }}
        # --target names the commit explicitly: persist-credentials is
        # false, so the tag cannot ride the leftover git credentials.
        run: gh release create "v${STEPS_META_OUTPUTS_VERSION}" --target "$GITHUB_SHA" --generate-notes

  deploy:
    name: Deploy demo
    needs: build
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    runs-on: ubuntu-latest
    permissions:
      contents: read # checkout, for fly.toml and the build context
    environment:
      name: demo
      url: https://docket.demo.kejadlen.dev
    # One deploy at a time, and a newer main is the one worth having.
    concurrency:
      group: fly-deploy
      cancel-in-progress: true
    env:
      FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
      FLY_APP: docket-kejadlen
      FLY_ORG: personal
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
        with:
          persist-credentials: false

      - uses: superfly/flyctl-actions/setup-flyctl@ed8efb33836e8b2096c7fd3ba1c8afe303ebbff1 # 1.6

      # Created here rather than by hand, so the app is something this
      # repository can lose and get back. `status` is how the review-app
      # action asks the same question.
      - name: Create the app if it is not there yet
        run: flyctl status --app "$FLY_APP" >/dev/null 2>&1 || flyctl apps create "$FLY_APP" --org "$FLY_ORG"

      # A build of its own from fly.toml, with the `dev` feature the
      # release image leaves out. It still waits on the release, so the
      # demo only runs commits that shipped, and carries its version.
      - name: Deploy a demo build
        env:
          NEEDS_BUILD_OUTPUTS_VERSION: ${{ needs.build.outputs.version }}
        run: flyctl deploy --app "$FLY_APP" --config fly.toml --remote-only --build-arg "DOCKET_VERSION=$NEEDS_BUILD_OUTPUTS_VERSION"