release.yml

name: Release

on:
  push:
    tags: ['v*']
  workflow_dispatch:

env:
  NuGetDirectory: ${{ github.workspace}}/nuget

defaults:
  run:
    shell: pwsh

jobs:
  build:

    runs-on: ubuntu-latest

    defaults:
      run:
        working-directory: src

    steps:
    - uses: actions/checkout@v4
      with:
        fetch-depth: 0
        filter: tree:0

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

    - name: Restore workloads
      run: dotnet workload restore

    - name: Restore dependencies
      run: dotnet restore

    - name: Build
      run: dotnet build --no-restore

    - name: Create nuget package
      run: dotnet pack --configuration Release --output ${{ env.NuGetDirectory }}

    - uses: actions/upload-artifact@v4
      with:
        name: nuget
        if-no-files-found: error
        retention-days: 7
        path: ${{ env.NuGetDirectory }}/*.nupkg

  deploy:
    runs-on: ubuntu-latest
    needs: [ build ]
    steps:
      - uses: actions/download-artifact@v4
        with:
          name: nuget
          path: ${{ env.NuGetDirectory }}

      - name: Setup .NET Core
        uses: actions/setup-dotnet@v4

      - name: Publish NuGet package
        run: |
          foreach($file in (Get-ChildItem "${{ env.NuGetDirectory }}" -Recurse -Include *.nupkg)) {
              dotnet nuget push $file --api-key "${{ secrets.NUGET_APIKEY }}" --source https://api.nuget.org/v3/index.json --skip-duplicate
          }

  github-release:
    name: Create GitHub Release
    runs-on: ubuntu-latest
    needs: [ deploy ]
    if: startsWith(github.ref, 'refs/tags/v')
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/download-artifact@v4
        with:
          name: nuget
          path: ${{ env.NuGetDirectory }}

      - name: Extract release notes from CHANGELOG.md
        shell: bash
        run: |
          set -euo pipefail
          tag="${GITHUB_REF_NAME}"
          version="${tag#v}"
          # Extract the section under "## [<version>]" up to (but not including)
          # the next "## [" heading. Empty output means the CHANGELOG was not
          # updated for this version — fail loudly so the maintainer notices.
          awk -v ver="$version" '
            $0 ~ "^## \\[" ver "\\]" { capture = 1; next }
            capture && /^## \[/ { exit }
            capture { print }
          ' CHANGELOG.md > release-notes.md
          if [ ! -s release-notes.md ]; then
            echo "::error::No CHANGELOG.md section found for [$version]. Move the [Unreleased] block to [$version] and re-tag." >&2
            exit 1
          fi
          echo "--- Release notes for $tag ---"
          cat release-notes.md

      - name: Create GitHub Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        shell: bash
        run: |
          gh release create "$GITHUB_REF_NAME" \
            --title "$GITHUB_REF_NAME" \
            --notes-file release-notes.md \
            ${{ env.NuGetDirectory }}/*.nupkg