action.yml

name: ⚙ dotnet
description: Configures dotnet if the repo/org defines the DOTNET custom property

runs:
  using: composite
  steps:
    - name: 🔎 dotnet
      id: dotnet
      shell: bash
      run: |
        VERSIONS=$(gh api repos/${{ github.repository }}/properties/values | jq -r '.[] | select(.property_name == "DOTNET") | .value')
        # Remove extra whitespace from VERSIONS
        VERSIONS=$(echo "$VERSIONS" | tr -s ' ' | tr -d ' ')
        # Convert comma-separated to newline-separated
        NEWLINE_VERSIONS=$(echo "$VERSIONS" | tr ',' '\n')
        # Validate versions
        while IFS= read -r version; do
          if ! [[ $version =~ ^[0-9]+(\.[0-9]+(\.[0-9]+)?)?(\.x)?$ ]]; then
            echo "Error: Invalid version format: $version"
            exit 1
          fi
        done <<< "$NEWLINE_VERSIONS"
        # Write multiline output to $GITHUB_OUTPUT
        {
          echo 'versions<<EOF'
          echo "$NEWLINE_VERSIONS"
          echo 'EOF'
        } >> $GITHUB_OUTPUT

    - name: ⚙ dotnet
      if: steps.dotnet.outputs.versions != ''
      uses: actions/setup-dotnet@v4
      with:
        dotnet-version: |
          ${{ steps.dotnet.outputs.versions }}