ci: add CI pipeline

.config/dotnet-tools.json

@@ -0,0 +1,12 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "dotnet-stryker": {
+      "version": "3.12.0",
+      "commands": [
+        "dotnet-stryker"
+      ]
+    }
+  }
+}

.github/workflows/ci.yml

@@ -0,0 +1,126 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+    - main
+  workflow_dispatch:
+
+permissions:
+  pull-requests: write
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref || github.run_id }}
+  cancel-in-progress: true
+
+env:
+  DOTNET_CLI_PERF_LOG: false
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
+  DOTNET_GENERATE_ASPNET_CERTIFICATE: false
+  DOTNET_NOLOGO: true
+  SuppressNETCoreSdkPreviewMessage: true
+  SLN_PATH: source/FlashOWare.Generators.sln
+
+jobs:
+  build:
+    name: Restore & Build & Test
+    continue-on-error: false
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [macos-12, ubuntu-22.04, windows-2022]
+        configuration: [Debug, Release]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v3
+      with:
+        global-json-file: global.json
+    - name: Restore dependencies
+      run: dotnet restore ${{ env.SLN_PATH }} --configfile nuget.config --no-cache
+    - name: Build
+      run: dotnet build ${{ env.SLN_PATH }} --configuration ${{ matrix.configuration }} --no-restore
+    - name: Test
+      run: dotnet test ${{ env.SLN_PATH }} --configuration ${{ matrix.configuration }} --no-build
+  codeCoverage:
+    name: Collect Code Coverage
+    needs:
+      - build
+    runs-on: ubuntu-22.04
+    env:
+      COVERAGE_OUTPUT_PATH: artifacts/coverage
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          global-json-file: global.json
+      - name: Restore dependencies
+        run: dotnet restore ${{ env.SLN_PATH }} --configfile nuget.config --no-cache
+      - name: Build
+        run: dotnet build ${{ env.SLN_PATH }} --configuration Debug --no-restore
+      - name: Test
+        run: dotnet test ${{ env.SLN_PATH }} --configuration Debug --no-build --collect:"XPlat Code Coverage" --logger trx --results-directory ${{ env.COVERAGE_OUTPUT_PATH }}
+      - name: Code Coverage Summary Report
+        uses: irongut/[email protected]
+        with:
+          filename: '${{ env.COVERAGE_OUTPUT_PATH }}/*/coverage.cobertura.xml'
+          badge: true
+          format: 'markdown'
+          output: 'both'
+      - name: Add Coverage PR Comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        if: github.event_name == 'pull_request'
+        with:
+          header: Code Coverage
+          recreate: true
+          path: code-coverage-results.md
+      - name: Write to Job Summary
+        run: cat code-coverage-results.md >> $GITHUB_STEP_SUMMARY
+  mutationTesting:
+    name: Mutation Testing
+    needs:
+      - build
+    env:
+      STRYKER_OUTPUT_PATH: ${{ github.workspace }}/artifacts/stryker
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Setup Variables
+        # https://stryker-mutator.io/docs/stryker-net/reporters/#markdown-summary-reporter
+        run: echo "STRYKER_REPORT_PATH=${{ env.STRYKER_OUTPUT_PATH }}/reports/mutation-report.md" >> $GITHUB_ENV
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v3
+        with:
+          global-json-file: global.json
+      - name: Restore tools
+        run: dotnet tool restore --configfile nuget.config --tool-manifest .config/dotnet-tools.json --no-cache
+      - name: Restore dependencies
+        run: dotnet restore ${{ env.SLN_PATH }} --configfile nuget.config --no-cache
+      - name: Build
+        # Although Stryker states that restore/build is not needed, I got a warning that sources could not be found.
+        # Therefore always restore/build!
+        run: dotnet build ${{ env.SLN_PATH }} --configuration Debug --no-restore
+      - name: Run dotnet-stryker
+        run: dotnet stryker --config-file stryker-config.yaml --output ${{ env.STRYKER_OUTPUT_PATH }}
+        working-directory: source/gen
+      - name: Add Mutation Test PR Comment
+        uses: marocchino/sticky-pull-request-comment@v2
+        if: github.event_name == 'pull_request'
+        with:
+          header: Mutation Test
+          recreate: true
+          path: ${{ env.STRYKER_REPORT_PATH }}
+      - name: Write to Job Summary
+        run: cat ${{ env.STRYKER_REPORT_PATH }} >> $GITHUB_STEP_SUMMARY