dotnet-format.yml

#
# This workflow runs the dotnet formatter on all c-sharp code.
#

name: dotnet-format

on:
  workflow_dispatch:
  pull_request:
    branches: [ "main", "feature*" ]
    paths:
      - 'dotnet/**'
      - 'samples/dotnet/**'
      - '**.cs'
      - '**.csproj'
      - '**.editorconfig'

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: true

jobs:
  check-format:
    strategy:
      fail-fast: false
      matrix:
        include:
        #- { dotnet: '6.0', configuration: Release, os: ubuntu-latest }
        - { dotnet: '7.0', configuration: Release, os: ubuntu-latest }
        #- { dotnet: '8.0-preview', configuration: Release, os: ubuntu-latest }
          
    runs-on: ${{ matrix.os }}
    env:
      NUGET_CERT_REVOCATION_MODE: offline
      
    steps:
      - name: Check out code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          
      - name: Get changed files
        id: changed-files
        if: github.event_name == 'pull_request'
        uses: jitterbit/get-changed-files@v1
        continue-on-error: true

      - name: No C# files changed
        id: no-csharp
        if: github.event_name == 'pull_request' && steps.changed-files.outputs.added_modified == ''
        run: echo "No C# files changed"

      # This step will loop over the changed files and find the nearest .csproj file for each one, then store the unique csproj files in a variable
      - name: Find csproj files
        id: find-csproj
        if: github.event_name != 'pull_request' || steps.changed-files.outputs.added_modified != '' || steps.changed-files.outcome == 'failure'
        run: |
          csproj_files=()
          if [[ ${{ steps.changed-files.outcome }} == 'success' ]]; then
            for file in ${{ steps.changed-files.outputs.added_modified }}; do
              echo "$file was changed"
              dir="./$file"
              while [[ $dir != "." && $dir != "/" && $dir != $GITHUB_WORKSPACE ]]; do
                if find "$dir" -maxdepth 1 -name "*.csproj" -print -quit | grep -q .; then
                  csproj_files+=("$(find "$dir" -maxdepth 1 -name "*.csproj" -print -quit)")
                  break
                fi
          
                dir=$(echo ${dir%/*})
              done
            done
          else
            # if the changed-files step failed, run dotnet on the whole sln instead of specific projects
            csproj_files=$(find ./ -type f -name "*.sln" | tr '\n' ' ');
          fi
          csproj_files=($(printf "%s\n" "${csproj_files[@]}" | sort -u))
          echo "Found ${#csproj_files[@]} unique csproj/sln files: ${csproj_files[*]}"
          echo "::set-output name=csproj_files::${csproj_files[*]}"

      - name: Pull container dotnet/sdk:${{ matrix.dotnet }}
        if: steps.find-csproj.outputs.csproj_files != ''
        run: docker pull mcr.microsoft.com/dotnet/sdk:${{ matrix.dotnet }}

      # This step will run dotnet format on each of the unique csproj files and fail if any changes are made
      - name: Run dotnet format
        if: steps.find-csproj.outputs.csproj_files != ''
        run: |
          for csproj in ${{ steps.find-csproj.outputs.csproj_files }}; do
            echo "Running dotnet format on $csproj"
            docker run --rm -v $(pwd):/app -w /app mcr.microsoft.com/dotnet/sdk:${{ matrix.dotnet }} /bin/sh -c "dotnet format $csproj --verify-no-changes --verbosity diagnostic"
          done