canary-pr-review.yml

name: Vale Linting and PR Review
on: [pull_request]

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@master
    
    - name: Get all changed markdown files
      id: changed-markdown-files
      uses: tj-actions/changed-files@v41
      with:
        files: |
           **.md

    - name: List all changed files markdown files
      if: steps.changed-markdown-files.outputs.any_changed == 'true'
      run: |
        for file in ${{ steps.changed-markdown-files.outputs.all_changed_files }}; do
          echo "$file was changed"
        done

    - name: Calculate changed files to pass to Vale
      id: calc_changed_files
      run: |
        beginning='['
        
        # File calculation without folder filtering
        middle=$(echo ${{ steps.changed-markdown-files.outputs.all_changed_files }} | sed 's/ /", "/g; s/^/"/; s/$/"/')
        
        # File calculation applying folder filtering for azure_arc_app_svc & azure_arc_k8s
        #middle=$(echo ${{ steps.changed-markdown-files.outputs.all_changed_files }} | tr ' ' '\n' | grep -E '^\docs\/azure_arc_jumpstart\/(azure_arc_app_svc|azure_arc_k8s|azure_jumpstart_ag)\/.*$' | sed 's/^/"/;s/$/"/' | paste -sd,)
        
        end=']'
        echo "files_to_change=$beginning$middle$end"
        echo "files_to_change=$beginning$middle$end" >> $GITHUB_ENV
        files_to_change=$beginning$middle$end
        
        if [[ ! "$files_to_change" =~ \[[[:space:]]*\] ]]; then
          echo "run_vale=Yes" >> $GITHUB_ENV
        else
        echo "run_vale=No" >> $GITHUB_ENV
        fi

    - name: Vale
      if: ${{ env.run_vale != 'No' }}
      uses: errata-ai/vale-action@reviewdog
      with:
        version: 2.30.0
        reporter: github-pr-check
        filter_mode: nofilter
        fail_on_error: true
        files: '${{ env.files_to_change }}'
        token: ${{secrets.GITHUB_TOKEN}}