lint.yml

name: Lint

on:
  pull_request:
    paths:
      - ".github/workflows/lint.yml"
      - "**.swift"
      - '.swiftlint.yml'
      - '.swiftformat'

jobs:
  format:
    name: SwiftFormat
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}
          
      - name: Print current branch name
        run: |
          echo ${{ github.ref_name }}
          git log -1
      
      - run: |
          echo ${{ github.event.pull_request.head.sha }}
          echo ${{ github.event.pull_request.base.sha }}

      - name: Get list changed files
        id: changed-files
        uses: tj-actions/changed-files@v17
        with:
          sha: ${{ github.event.pull_request.head.sha }}
          base_sha: ${{ github.event.pull_request.base.sha }}
          separator: ","
          files: |
            **/*.swift

      - name: Install SwiftFormat
        run: brew install swiftformat

      - name: Format Swift code
        run: |
          string='${{ steps.changed-files.outputs.all_changed_files }}'
          IFS=, read -r -a files  <<<"$string"
          swiftformat --verbose "${files[@]}" --config .swiftformat

      - uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: Apply SwiftFormat changes

  lint:
    name: SwiftLint
    runs-on: ubuntu-latest
    needs: format
    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.head_ref }}

      - name: SwiftLint
        uses: norio-nomura/action-swiftlint@3.2.1
        env:
          DIFF_BASE: ${{ github.base_ref }} # only files changed in the PR