ci.yml

name: CI

on:
  push:
    branches:
      - main
  pull_request: {}
  workflow_dispatch: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

env:
  # Common versions
  GO_VERSION: '1.21'
  GOLANGCI_VERSION: 'v1.55.2'
jobs:
  lint:
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Setup Go
        uses: actions/setup-go@v4
        with:
          go-version: ${{ env.GO_VERSION }}

      # We could run 'make lint' but we prefer this action because it leaves
      # 'annotations' (i.e. it comments on PRs to point out linter violations).
      - name: Lint
        uses: golangci/golangci-lint-action@v3
        with:
          version: ${{ env.GOLANGCI_VERSION }}

  check-diff:
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Setup Go
        uses: actions/setup-go@v4
        with:
          go-version: ${{ env.GO_VERSION }}

      - name: Check Diff
        id: check-diff
        run: make check-diff

      - name: Show diff
        if: failure() && steps.check-diff.outcome == 'failure'
        run: git diff

  unit-tests:
    runs-on: ubuntu-22.04

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          submodules: true

      - name: Fetch History
        run: git fetch --prune --unshallow

      - name: Setup Go
        uses: actions/setup-go@v4
        with:
          go-version: ${{ env.GO_VERSION }}

      - name: Run Unit Tests
        run: make -j2 test