nuget-ci-cd.yml

name: Build NuGet packages

on:
  push:
    branches: [ develop, main ]
    tags:
      - v*
  pull_request:
    branches: [ develop, main ]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          # We use `git describe` to find tags in commit history, so we need complete repo history
          fetch-depth: 0

      - name: Find most recent tag
        shell: bash
        run: |
          DESCRIBE=$(git describe --long --match "v*")
          TAG=$(echo "$DESCRIBE" | grep -E -o '^v[0-9]+\.[0-9]+\.[0-9]+')
          echo "DESCRIBE=$DESCRIBE" >> "$GITHUB_ENV"
          echo "TAG=$TAG" >> "$GITHUB_ENV"

      - name: Split version number from tag into major/minor/patch sections
        shell: bash
        run: |
          MAJOR=$(echo "$TAG" | sed -E 's/^v([0-9]+)\.([0-9]+)\.([0-9]+)$/\1/')
          MINOR=$(echo "$TAG" | sed -E 's/^v([0-9]+)\.([0-9]+)\.([0-9]+)$/\2/')
          PATCH=$(echo "$TAG" | sed -E 's/^v([0-9]+)\.([0-9]+)\.([0-9]+)$/\3/')
          echo "MAJOR=$MAJOR" >> "$GITHUB_ENV"
          echo "MINOR=$MINOR" >> "$GITHUB_ENV"
          echo "PATCH=$PATCH" >> "$GITHUB_ENV"

      - name: Get GitHub build number
        shell: bash
        run: echo "BUILD_NUMBER=${{ github.run_number }}" >> "$GITHUB_ENV"

      - name: Get PR number for prerelease suffix
        if: github.event_name == 'pull_request'
        shell: bash
        run: echo "PR_NUMBER=${{ github.event.number }}" >> "$GITHUB_ENV"

      - name: Calculate prerelease suffix
        shell: bash
        run: |
          SUFFIX=""
          if [ -n "$PR_NUMBER" ]; then
            SUFFIX="-PR${PR_NUMBER}.${BUILD_NUMBER}"
          elif [ "$GITHUB_REF" = "refs/heads/develop" ]; then
            SUFFIX="-beta.${BUILD_NUMBER}"
          elif [ "$GITHUB_REF" = "refs/heads/main" ]; then
            SUFFIX="-rc.${BUILD_NUMBER}"
          fi

          echo "SUFFIX=$SUFFIX" >> "$GITHUB_ENV"

      - name: Calculate version number bump
        # Same logic as GitVersion:
        # * "+semver: breaking" or "+semver: major" in commit log will produce major version bump (and reset minor and patch to 0)
        # * "+semver: feature" or "+semver: minor" in commit log will produce minor version bump (and reset patch to 0)
        # Default is to bump the patch version
        # Git log format "%B" is the raw body with no author's email or anything else
        shell: bash
        run: |
          COMMIT_COUNT=$(echo "$DESCRIBE" | sed -E 's/^[^-]+-([^-]+)-.*$/\1/')
          if [ -n "$COMMIT_COUNT" -a "$COMMIT_COUNT" -gt 0 ]; then
            # Calculate bump based on commit messages
            RAW_LOG=$(git log --format="%B" "$TAG"..HEAD)
            if grep -E '\+semver: (breaking|major)' <<< "$RAW_LOG"; then
              MAJOR=$(($MAJOR + 1))
              MINOR=0
              PATCH=0
            elif grep -E '\+semver: (feature|minor)' <<< "$RAW_LOG"; then
              MINOR=$(($MINOR + 1))
              PATCH=0
            else
              PATCH=$(($PATCH + 1))
            fi
          fi

          echo "MAJOR=$MAJOR" >> "$GITHUB_ENV"
          echo "MINOR=$MINOR" >> "$GITHUB_ENV"
          echo "PATCH=$PATCH" >> "$GITHUB_ENV"

      - name: Set version number variables for MSBuild
        shell: bash
        run: |
          echo "PACKAGE_VERSION=${MAJOR}.${MINOR}.${PATCH}${SUFFIX}" >> "$GITHUB_ENV"
          if [ $MAJOR -eq 0 ]; then
            echo "ASSEMBLY_VERSION=0.${MINOR}.0.0" >> "$GITHUB_ENV"
          else
            echo "ASSEMBLY_VERSION=${MAJOR}.0.0.0" >> "$GITHUB_ENV"
          fi
          echo "FILE_VERSION=${MAJOR}.${MINOR}.${PATCH}.${BUILD_NUMBER}" >> "$GITHUB_ENV"

      - name: Display version number for debugging
        shell: bash
        run: echo "Calculated version number is $PACKAGE_VERSION"

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

      - name: Build & test
        run: dotnet test --configuration Release --logger GitHubActions

      - name: Pack
        shell: bash
        run: |
          dotnet pack --include-symbols /p:PackageVersion="$PACKAGE_VERSION" /p:AssemblyVersion="$ASSEMBLY_VERSION" /p:FileVersion="$FILE_VERSION"

      - name: Upload packages to build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: nuget-packages
          path: src/artifacts/package/release/*nupkg

      - name: Publish package to GitHub
        if: github.event_name == 'pull_request' || (github.event_name == 'push' && startsWith(github.ref, 'refs/heads'))
        shell: bash
        run: |
          dotnet nuget push "src/artifacts/package/release/*.symbols.nupkg" -s https://nuget.pkg.github.com/sillsdev/index.json -k "$NUGET_API_KEY" --skip-duplicate
        env:
          NUGET_API_KEY: ${{ secrets.GITHUB_TOKEN }}

      - name: Publish package to NuGet.org
        if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
        shell: bash
        run: |
          echo Would run the following:
          echo dotnet nuget push "src/artifacts/package/release/*nupkg" --skip-duplicate --api-key "$NUGET_API_KEY" --source https://api.nuget.org/v3/index.json
        env:
          NUGET_API_KEY: fake-key-for-testing-purposes
          # NUGET_API_KEY: ${{ secrets.SILLSDEV_PUBLISH_NUGET_ORG }}