publish.yml

name: Publish to NuGet

# Triggers when you push a version tag, e.g.: git tag v2.0.1 && git push --tags
on:
  push:
    tags:
      - 'v*.*.*'

jobs:
  publish:
    name: Pack & publish
    runs-on: windows-latest   # System.Drawing.Common requires Windows on .NET 8/9
    permissions:
      contents: write         # needed to create a GitHub Release

    defaults:
      run:
        shell: bash           # use bash on all steps so glob expansion works

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup .NET
        uses: actions/setup-dotnet@v4
        with:
          dotnet-version: |
            8.0.x
            9.0.x

      # Strip the leading 'v' from the tag to get the bare version number
      - name: Extract version from tag
        id: version
        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      # Single atomic step: restore + build + pack in one MSBuild invocation.
      # Splitting restore and pack --no-restore causes net9.0-windows to be
      # silently dropped from the nupkg when conditional ItemGroups are used.
      # Use -p: (not /p:) — Git Bash on Windows strips leading / from MSBuild flags.
      - name: Pack
        run: |
          dotnet pack src/ImageProcessor.Core/ImageProcessor.Core.csproj \
            -c Release \
            -p:Version=${{ steps.version.outputs.VERSION }} \
            -o artifacts

      - name: List artifacts (debug)
        run: ls -la artifacts/

      - name: Push to NuGet.org
        run: |
          dotnet nuget push artifacts/*.nupkg \
            --api-key "${{ secrets.NUGET_API_KEY }}" \
            --source https://api.nuget.org/v3/index.json \
            --skip-duplicate

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          name: Release ${{ github.ref_name }}
          files: artifacts/*.nupkg
          generate_release_notes: true