test-runner.yml

name: "gha: macOS & Windows"

# Build on pull requests and pushes to `main`. The PR builds will be
# non-blocking for now, but that is configured elsewhere.
on:
  # Start these builds on pushes (think "after the merge") too. Normally there
  # are no `ci-gha**` branches in our repository. The contributors to the repo
  # can create such branches when testing or troubleshooting builds. In such
  # branches we can disable builds (to speed up the testing) or add new ones,
  # without impacting the rest of the team.
  push:
    branches: [ 'v[2-9]**', 'ci-gha**' ]
  # Start the build in the context of the target branch. This is considered
  # "safe", as the workflow files are already committed. These types of builds
  # have access to the secrets in the build, which we need to use the remote
  # caches (Bazel and sccache).
  pull_request_target:
    types:
    - opened
    - synchronize
    - reopened
  schedule:
    - cron: '0 5 * * 1,2,3,4,5'
  workflow_dispatch:

# Cancel in-progress runs of the workflow if somebody adds a new commit to the
# PR or branch. That reduces billing, but it creates more noise about cancelled
# jobs
concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.head.label || github.head_ref || github.ref }}
  cancel-in-progress: true

jobs:
  pre-flight:
    # For external contributors, run the build in the `external` environment.
    # This requires manual approval from a contributor. It also saves the
    # `ref` of the pull request, so downstream jobs know what to checkout.
    environment: >-
      ${{
          (github.event_name != 'pull_request_target' && 'internal') ||
          (github.event.pull_request.head.repo.full_name == github.repository && 'internal') ||
          (contains(fromJSON(vars.TRUSTED_FORKS), github.actor) && 'internal') ||
          'external'
      }}
    name: Require Approval for External PRs
    runs-on: ubuntu-latest
    outputs:
      checkout-sha: ${{ steps.save-pull-request.outputs.sha }}
    steps:
      - name: Save Pull Request
        id: save-pull-request
        run: >
          echo "sha=${{ github.event.pull_request.head.sha || github.ref }}" >> $GITHUB_OUTPUT

  # Run other jobs once the `pre-flight` job passes. When the `pre-flight`
  # job requires approval, these blocks all the other jobs. The jobs are defined
  # in separate files to keep the size of this file under control. Note how
  # the additional jobs inherit any secrets needed to use the remote caches and
  # receive what version to checkout as an input.
  external-account-integration:
    name: External Account Integration
    needs: [pre-flight]
    uses: ./.github/workflows/external-account-integration.yml
    with:
      checkout-ref: ${{ needs.pre-flight.outputs.checkout-sha }}
    secrets: inherit
  macos-bazel:
    # Build the full matrix only on push events to the default branch, or
    # when PR gets the has a `gha:full-build` label, or when it had the
    # label already and it gets a new commit.
    if: |-
      ${{
        github.event_name == 'schedule' ||
        github.event_name == 'push' ||
        github.event_name == 'workflow_dispatch' ||
        contains(github.event.pull_request.labels.*.name, 'gha:full-build')
      }}
    name: macOS-Bazel
    needs: [pre-flight]
    uses: ./.github/workflows/macos-bazel.yml
    with:
      checkout-ref: ${{ needs.pre-flight.outputs.checkout-sha }}
    secrets: inherit
  windows-bazel:
    # Build the full matrix only on push events to the default branch, or
    # when PR gets the has a `gha:full-build` label, or when it had the
    # label already and it gets a new commit.
    if: |-
      ${{
        github.event_name == 'schedule' ||
        github.event_name == 'push' ||
        github.event_name == 'workflow_dispatch' ||
        contains(github.event.pull_request.labels.*.name, 'gha:full-build')
      }}
    name: Windows-Bazel
    needs: [pre-flight]
    uses: ./.github/workflows/windows-bazel.yml
    with:
      checkout-ref: ${{ needs.pre-flight.outputs.checkout-sha }}
    secrets: inherit
  macos-cmake:
    name: macOS-CMake
    needs: [pre-flight]
    uses: ./.github/workflows/macos-cmake.yml
    with:
      checkout-ref: ${{ needs.pre-flight.outputs.checkout-sha }}
      # Build the full matrix only on push events to the default branch, or
      # when PR gets the has a `gha:full-build` label, or when it had the
      # label already and it gets a new commit.
      full-matrix: |-
        ${{
          github.event_name == 'schedule' ||
          github.event_name == 'push' ||
          github.event_name == 'workflow_dispatch' ||
          contains(github.event.pull_request.labels.*.name, 'gha:full-build')
        }}
    secrets: inherit
  windows-cmake:
    name: Windows-CMake
    needs: [pre-flight]
    uses: ./.github/workflows/windows-cmake.yml
    with:
      checkout-ref: ${{ needs.pre-flight.outputs.checkout-sha }}
      # Build the full matrix only on push events to the default branch, or
      # when PR gets the has a `gha:full-build` label, or when it had the
      # label already and it gets a new commit.
      full-matrix: |-
        ${{
          github.event_name == 'schedule' ||
          github.event_name == 'push' ||
          github.event_name == 'workflow_dispatch' ||
          contains(github.event.pull_request.labels.*.name, 'gha:full-build')
        }}
    secrets: inherit
  notify:
    name: Notify-Google-Chat
    # Wait until all the other jobs have completed.
    needs:
      - external-account-integration
      - macos-bazel
      - macos-cmake
      - windows-bazel
      - windows-cmake
    # Run even if the other jobs failed or were skipped.
    if: ${{ contains(fromJSON('["schedule", "push", "workflow_dispatch"]'), github.event_name) }}
    runs-on: ubuntu-latest
    steps:
      - name: Notify Google Chat
        shell: bash
        run: |
          failure="${{ contains(needs.*.result, 'failure') }}"
          cancelled="${{ contains(needs.*.result, 'cancelled') }}"
          status=""
          # Report whether any of the jobs failed or were cancelled.
          if [[ "${cancelled}" == "true" ]]; then status="cancelled"; fi
          if [[ "${failure}" == "true" ]]; then status="failure"; fi
          # Exit early if there is nothing interesting to report.
          if [[ -z "${status}" ]]; then exit 0; fi
          printf '{"text": "GHA Build %s %s/%s/actions/runs/%s"}' \
            "${status}" "${{ github.server_url }}" "${{ github.repository }}" "${{ github.run_id }}" |
          curl -fsX POST -o /dev/null -d@- -H "Content-Type: application/json; charset=UTF-8" '${{ secrets.CLOUD_CPP_BUILD_ALERTS_WEBHOOK }}'