name: Lint

on:
  push:
    branches: [main]
    paths:
      - '**.go'
      - '**.sh'
      - '**.bash'
      - '**.cue'
      - 'docs/**'
      - '.golangci.yml'
      - 'Makefile'
      - 'README.md'
      - '.github/workflows/lint.yml'
  pull_request:
    branches: [main]
    paths:
      - '**.go'
      - '**.sh'
      - '**.bash'
      - '**.cue'
      - 'docs/**'
      - '.golangci.yml'
      - 'Makefile'
      - 'README.md'
      - '.github/workflows/lint.yml'

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    steps:
      - name: "Check out"
        uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: "Set up go"
        uses: actions/setup-go@v1
        with:
          go-version: 1.16

      - name: "Install deps"
        run: |
          # Cue
          export CUE_VERSION="$(grep cue ./go.mod | cut -d' ' -f2 | head -1 | sed -E 's/\.[[:digit:]]\.[[:alnum:]]+-[[:alnum:]]+$//')"
          export CUE_TARBALL="cue_${CUE_VERSION}_linux_amd64.tar.gz"
          echo "Installing cue version $CUE_VERSION"
          curl -L https://github.com/cue-lang/cue/releases/download/${CUE_VERSION}/${CUE_TARBALL} | sudo tar zxf - -C /usr/local/bin

      - name: "Lint go"
        uses: golangci/golangci-lint-action@v2
        with:
          version: v1.39
          skip-go-installation: true
          args: --timeout=3m

      - name: "Lint shell"
        run: |
          make shellcheck

      - name: "Lint CUE"
        run: |
          make cuelint

      - name: "Lint docs"
        run: |
          make docslint

      - name: "Lint markdown"
        uses: avto-dev/markdown-lint@v1
        with:
          config: ".markdownlint.yaml"
          args: ./docs README.md