name: Validate

on:
  pull_request:
    branches:
      - '*'

env:
  GO_VERSION: 1.16
  MISSSPELL_VERSION: v0.3.4
  PRE_TARGET: ""

jobs:

  validate:
    runs-on: ubuntu-20.04

    defaults:
      run:
        working-directory: ${{ github.workspace }}/go/src/github.com/traefik/traefik

    steps:
      - name: Set up Go ${{ env.GO_VERSION }}
        uses: actions/setup-go@v2
        with:
          go-version: ${{ env.GO_VERSION }}

      - name: Check out code
        uses: actions/checkout@v2
        with:
          path: go/src/github.com/traefik/traefik
          fetch-depth: 0

      - name: Cache Go modules
        uses: actions/cache@v2
        with:
          path: |
            ~/go/pkg/mod
            ~/.cache/go-build
          key: ${{ runner.os }}-validate-go-${{ hashFiles('**/go.sum') }}
          restore-keys: ${{ runner.os }}-validate-go-

      - name: Install golint
        run: go install golang.org/x/lint/golint@latest

      - name: Install missspell ${{ env.MISSSPELL_VERSION }}
        run: curl -sfL https://raw.githubusercontent.com/client9/misspell/master/install-misspell.sh | sh -s -- -b $(go env GOPATH)/bin ${MISSSPELL_VERSION}

      - name: Install gobindata
        run: |
          curl -fsSL -o $(go env GOPATH)/bin/go-bindata https://github.com/containous/go-bindata/releases/download/v1.0.0/go-bindata
          chmod +x $(go env GOPATH)/bin/go-bindata

      - name: Avoid generating webui
        run: mkdir -p webui/static && touch webui/static/index.html

      - name: Validate
        env:
          DOCKER_RUN_TRAEFIK: ""
        run: make validate

  validate-generate:
    runs-on: ubuntu-20.04

    defaults:
      run:
        working-directory: ${{ github.workspace }}/go/src/github.com/traefik/traefik

    steps:
      - name: Set up Go ${{ env.GO_VERSION }}
        uses: actions/setup-go@v2
        with:
          go-version: ${{ env.GO_VERSION }}

      - name: Check out code
        uses: actions/checkout@v2
        with:
          path: go/src/github.com/traefik/traefik
          fetch-depth: 0

      - name: Cache Go modules
        uses: actions/cache@v2
        with:
          path: |
            ~/go/pkg/mod
            ~/.cache/go-build
          key: ${{ runner.os }}-validate-generate-go-${{ hashFiles('**/go.sum') }}
          restore-keys: ${{ runner.os }}-validate-generate-go-

      - name: Install gobindata
        run: |
          curl -fsSL -o $(go env GOPATH)/bin/go-bindata https://github.com/containous/go-bindata/releases/download/v1.0.0/go-bindata
          chmod +x $(go env GOPATH)/bin/go-bindata

      - name: go generate
        run: |
          go generate
          git diff --exit-code
      - name: go mod tidy
        run: |
          go mod tidy
          git diff --exit-code