ci.yml

name: CI

on:
  push:
    branches: [ main ]
  pull_request:
    types: [ opened, reopened, labeled, synchronize ]

jobs:
  lint:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        linter:
          - golangci-lint
    steps:
      - uses: actions/checkout@v4
      - name: Setup Nix
        uses: ./.github/actions/setup-nix
      - name: Run linter
        run: nix run .#lint-${{ matrix.linter }}

  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        package:
          - nix-snapshotter
          - image-hello
          - image-redis
          - image-redisWithShell
    steps:
      - uses: actions/checkout@v4
      - name: Setup Nix
        uses: ./.github/actions/setup-nix
      - name: Build package
        run: nix build .#${{ matrix.package }}

  integration-test:
    runs-on: nix-snapshotter-runner
    strategy:
      matrix:
        test:
          - snapshotter
          - kubernetes
          - k3s
          - k3s-external
          - k3s-rootless
    needs: [lint, build]
    if: contains(github.event.pull_request.labels.*.name, 'ok-to-test')
    steps:
      - uses: actions/checkout@v4
      - name: Setup Nix
        uses: ./.github/actions/setup-nix
        with:
          enable-kvm: true
      - name: Build snapshotter
        run: nix build
      - name: Run integration tests
        run: nix run -L .#test-${{ matrix.test }}
      - uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.test }}_build
          path: build
          if-no-files-found: ignore
          retention-days: 1

  coverage-report:
    runs-on: ubuntu-latest
    needs: [integration-test]
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          path: build
          merge-multiple: true
      - uses: actions/setup-go@v4
        with: { go-version: '1.20' }
      - name: Collect test coverage
        run: |
          mkdir -p "$PWD/build/go-cover/unit"
          go test -cover ./... -args -test.gocoverdir="$PWD/build/go-cover/unit"
          go tool covdata textfmt -i=`find ./build/go-cover -mindepth 1 -type d | paste -sd ","` -o ./build/go-cover/profile
          echo "# Coverage report" >> $GITHUB_STEP_SUMMARY
          echo '```' >> $GITHUB_STEP_SUMMARY
          go tool cover -func ./build/go-cover/profile >> $GITHUB_STEP_SUMMARY
          echo '```' >> $GITHUB_STEP_SUMMARY