add Google Benchmark Framework workflows for CI and example

.github/workflows/ci.yml

@@ -120,6 +120,36 @@ jobs:
           skip-fetch-gh-pages: true
           fail-on-alert: true
       - run: node ./scripts/ci_validate_modification.js before_data.js 'Python Benchmark with pytest-benchmark'
+  google-benchmark-framework:
+    name: Run Google C++ Benchmark Framework example
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+      - uses: actions/cache@v1
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('package-lock.json') }}
+      - run: npm ci
+      - run: npm run build
+      - name: Save previous data.js
+        run: |
+          git checkout gh-pages
+          cp ./dev/bench/data.js before_data.js
+          git checkout -
+      - name: Run benchmark
+        run: |
+          cd examples/cpp
+          make json
+      - name: Store benchmark result
+        uses: ./
+        with:
+          name: C++ Benchmark with Google Benchmark
+          tool: 'pytest'
+          output-file-path: examples/cpp/benchmark_result.json
+          skip-fetch-gh-pages: true
+          fail-on-alert: true
+      - run: node ./scripts/ci_validate_modification.js before_data.js 'C++ Benchmark with Google Benchmark'
   only-alert-with-cache:
     name: Run alert check with actions/cache
     runs-on: ubuntu-latest

.github/workflows/cpp.yml

@@ -0,0 +1,34 @@
+name: C++ Example
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  benchmark:
+    name: Run C++ benchmark example
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Run benchmark
+        run: cd examples/cpp && make json
+      # TODO: Temporary until new release from here
+      - uses: actions/setup-node@v1
+      - run: npm ci
+      - run: npm run build
+      # TODO: Temporary until new release until here
+      - name: Store benchmark result
+        # TODO: Replace './' with 'rhysd/github-action-benchmark@v1'
+        uses: ./
+        with:
+          name: C++ Benchmark
+          tool: 'googlecpp'
+          output-file-path: examples/cpp/benchmark_result.json
+          # Use personal access token instead of GITHUB_TOKEN due to https://github.community/t5/GitHub-Actions/Github-action-not-triggering-gh-pages-upon-push/td-p/26869/highlight/false
+          github-token: ${{ secrets.PERSONAL_GITHUB_TOKEN }}
+          auto-push: true
+          # Show alert with commit comment on detecting possible performance regression
+          alert-threshold: '200%'
+          comment-on-alert: true
+          fail-on-alert: true
+          alert-comment-cc-users: '@rhysd'