name: Continuous integration

on:
  push:
    branches:
      - main
  pull_request:

env:
  GO_VERSION: 1.19

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code into the Go module directory
        uses: actions/checkout@v3

      - name: Set up Go
        uses: actions/setup-go@v3
        with:
          go-version: ${{ env.GO_VERSION }}
          cache: true

      - name: Validate go-mod is up-to-date and license headers
        run: make validate

      - name: Run golangci-lint
        env:
          BUILD_TAGS: kube,e2e
        run: |
          curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sudo sh -s -- -b /usr/bin/ v1.50.1
          make -f builder.Makefile lint

  # only on main branch, costs too much for the gain on every PR
  validate-cross-build:
    name: Validate cross build
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/main'
    steps:
      - name: Checkout code into the Go module directory
        uses: actions/checkout@v3

      - name: Set up Go
        uses: actions/setup-go@v3
        with:
          go-version: ${{ env.GO_VERSION }}
          cache: true

      # Ensure we don't discover cross platform build issues at release time.
      # Time used to build linux here is gained back in the build for local E2E step
      - name: Build packages
        run: make -f builder.Makefile cross

  build:
    name: Build
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code into the Go module directory
        uses: actions/checkout@v3

      - name: Set up Go
        uses: actions/setup-go@v3
        with:
          go-version: ${{ env.GO_VERSION }}
          cache: true

      - name: Set up gosum
        run: |
          go install gotest.tools/gotestsum@latest

      - name: Setup docker CLI
        run: |
          curl https://download.docker.com/linux/static/stable/x86_64/docker-20.10.3.tgz | tar xz
          sudo cp ./docker/docker /usr/bin/ && rm -rf docker && docker version

      - name: Test
        env:
          BUILD_TAGS: kube
        run: make -f builder.Makefile test

      - name: Build for local E2E
        env:
          BUILD_TAGS: e2e
        run: make -f builder.Makefile cli

      - name: E2E Test
        run: make e2e-local