ci.yaml

name: CI

# Controls when the action will run.
on:
  # Triggers the workflow on push or pull request events but only for the main branch
  push:
    branches: [main]
  pull_request:
    branches: [main]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

concurrency:
  # Cancel previous actions from the same PR or branch except 'main' branch.
  # See https://docs.github.com/en/actions/using-jobs/using-concurrency and https://docs.github.com/en/actions/learn-github-actions/contexts for more info.
  group: concurrency-group::${{ github.workflow }}::${{ github.event.pull_request.number > 0 && format('pr-{0}', github.event.pull_request.number) || github.ref_name }}${{ github.ref_name == 'main' && format('::{0}', github.run_id) || ''}}
  cancel-in-progress: ${{ github.ref_name != 'main' }}

jobs:
  matrix-prep-bazelversion:
    # Prepares the 'bazelversion' axis of the test matrix
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - id: bazel_7
        run: echo "bazelversion=$(head -n 1 .bazelversion)" >> $GITHUB_OUTPUT
      - id: bazel_6
        run: echo "bazelversion=6.4.0" >> $GITHUB_OUTPUT
    outputs:
      # Will look like ["<version from .bazelversion>", "6.4.0"]
      bazelversions: ${{ toJSON(steps.*.outputs.bazelversion) }}

  matrix-prep-os:
    # Prepares the 'os' axis of the test matrix
    runs-on: ubuntu-latest
    env:
      TC_CLOUD_TOKEN: ${{ secrets.TC_CLOUD_TOKEN }}
    steps:
      - id: linux
        run: echo "os=ubuntu-latest" >> $GITHUB_OUTPUT
      - id: macos
        run: echo "os=macos-latest" >> $GITHUB_OUTPUT
        # Don't run MacOS if there is no TestContainers API token which is the case on forks. We need it for container tests.
        if: ${{ env.TC_CLOUD_TOKEN != '' }}
    outputs:
      # Will look like ["ubuntu-latest", "macos-latest"]
      os: ${{ toJSON(steps.*.outputs.os) }}

  test:
    # The type of runner that the job will run on
    runs-on: ${{ matrix.os }}
    needs:
      - matrix-prep-bazelversion
      - matrix-prep-os

    strategy:
      fail-fast: false
      matrix:
        os: ${{ fromJSON(needs.matrix-prep-os.outputs.os) }}
        bazelversion: ${{ fromJSON(needs.matrix-prep-bazelversion.outputs.bazelversions) }}
        folder:
          - .
          - e2e/custom_registry
          - e2e/wasm
          - e2e/smoke
          - e2e/crane_as_registry
          - e2e/pull

        bzlmodEnabled: [true, false]
        exclude:
          # macos is expensive (billed at 10X) so don't test these
          - os: macos-latest
            folder: e2e/custom_registry
          - os: macos-latest
            folder: e2e/wasm
          - os: macos-latest
            folder: e2e/crane_as_registry
          - os: macos-latest
            folder: e2e/pull
          - os: macos-latest
            bazelversion: 6.4.0
          # e2e/pull is bzlmod only but it has test for both cases.
          - folder: e2e/pull
            bzlmodEnabled: false
          # TODO: fix
          - folder: e2e/custom_registry
            bzlmodEnabled: true
          # TODO: fix
          - folder: e2e/wasm
            bzlmodEnabled: true
    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - uses: actions/checkout@v4
      - name: Mount bazel caches
        uses: actions/cache@v3
        with:
          path: |
            ~/.cache/bazel-repo
          key: bazel-cache-${{ matrix.os }}-${{ matrix.folder }}-${{ hashFiles('**/BUILD.bazel', '**/*.bzl', 'WORKSPACE') }}
          restore-keys: |
            bazel-cache-${{ matrix.os }}-${{ matrix.folder }}
            bazel-cache-${{ matrix.os }}
            bazel-cache-

      - name: Set bzlmod flag
        # Store the --enable_bzlmod flag that we add to the test command below
        # only when we're running bzlmod in our test matrix.
        id: set_bzlmod_flag
        if: matrix.bzlmodEnabled
        run: echo "bzlmod_flag=--enable_bzlmod" >> $GITHUB_OUTPUT

      - name: Configure Bazel version
        working-directory: ${{ matrix.folder }}
        run: echo "${{ matrix.bazelversion }}" > .bazelversion

      - name: Configure TestContainers cloud
        if: ${{ matrix.os == 'macos-latest' }}
        uses: atomicjar/testcontainers-cloud-setup-action@main
        with:
          wait: true
          token: ${{ secrets.TC_CLOUD_TOKEN }}

      - name: Configure Remote Docker Host
        if: ${{ matrix.os == 'macos-latest' }}
        run: echo "DOCKER_HOST=$(grep 'tc.host' ~/.testcontainers.properties | cut -d '=' -f2 | xargs)" >> $GITHUB_ENV

      - name: bazel test //...
        working-directory: ${{ matrix.folder }}
        env:
          # Bazelisk will download bazel to here, ensure it is cached between runs.
          XDG_CACHE_HOME: ~/.cache/bazel-repo
        run: bazel --bazelrc=$GITHUB_WORKSPACE/.github/workflows/ci.bazelrc --bazelrc=.bazelrc test ${{ steps.set_bzlmod_flag.outputs.bzlmod_flag }} //...