fix CI and improve benchmark reporting (#22)

* improve benchmark reporting

* improve bench reporting

.github/workflows/go.yml

@@ -10,6 +10,7 @@ permissions:
   contents: read
   pull-requests: write
   statuses: write
+  checks: write
 
 jobs:
   build:
@@ -24,48 +25,78 @@ jobs:
       - name: Build
         run: go build -v ./...
 
+      - name: Install go-junit-report
+        run: go install github.com/jstemmer/go-junit-report/v2@latest
       - name: Run Tests and Generate Test Report
         run: |
           mkdir -p reports
-          go test -v -json ./... > reports/report.json
 
+          go test -v ./... 2>&1 | go-junit-report > reports/report.xml
       - name: Publish Test Results
-        uses: EnricoMi/publish-unit-test-result-action@v1
+        uses: EnricoMi/publish-unit-test-result-action@v2
+        if: always()
         with:
-          files: 'reports/report.json'
+          files: 'reports/report.xml'
           check_name: 'Go Tests'
           comment_title: 'Go Test Results'
-          commit: ${{ github.event.pull_request.head.sha }}
+          commit: ${{ github.event.pull_request.head.sha || github.sha }}
           github_token: ${{ secrets.GITHUB_TOKEN }}
           hide_comments: 'all but latest'
           deduplicate_classes_by_file_name: true
 
   benchmark:
     name: Run Go benchmarks
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      pull-requests: write
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout PR
+        uses: actions/checkout@v4
 
-      - uses: actions/setup-go@v4
+      - name: Setup Go
+        uses: actions/setup-go@v4
         with:
           go-version: '1.x'
 
-      - name: Run benchmarks
+      - name: Run PR benchmarks
         run: |
           mkdir -p benchmarks
-          go test -bench . -benchmem -run=^$ ./... > benchmarks/benchmark.txt
+          go test -v -bench . -benchmem -run=^$ ./... > benchmarks/pr_benchmark.txt
+
+      - name: Checkout main
+        uses: actions/checkout@v4
+        with:
+          ref: main
+          clean: false
+
+      - name: Run main benchmarks
+        run: |
+          go test -v -bench . -benchmem -run=^$ ./... > benchmarks/main_benchmark.txt
+
+      - name: Process benchmark results
+        run: |
+          {
+            echo "PR Benchmarks:"
+            cat benchmarks/pr_benchmark.txt
+            echo $'\n\nMain Benchmarks:'
+            cat benchmarks/main_benchmark.txt
+          } > benchmarks/comparison.txt
+
+      - name: Store benchmark result
+        uses: actions/upload-artifact@v3
+        with:
+          name: benchmark-comparison
+          path: benchmarks/comparison.txt
 
-      - name: Post Benchmark Results
-        uses: rhysd/github-action-benchmark@v1
+      - name: Comment PR
+        uses: actions/github-script@v6
+        if: github.event_name == 'pull_request'
         with:
-          tool: 'go'
-          output-file-path: 'benchmarks/benchmark.txt'
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          ref: 'main'
-          comment-on-alert: true
-          alert-threshold: '15%'
-          fail-on-alert: true
-          summary-always: true
+          github-token: ${{secrets.GITHUB_TOKEN}}
+          script: |
+            const fs = require('fs');
+            const benchmarkResults = fs.readFileSync('benchmarks/comparison.txt', 'utf8');
+            github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: '## Benchmark Comparison\n\n```\n' + benchmarkResults + '\n```'
+            })