.

Author: scottgerring

.github/workflows/pr_criterion.yaml

@@ -9,12 +9,14 @@ jobs:
     name: run benchmark
     permissions:
       pull-requests: write
-    runs-on: ${{ github.event_name == 'pull_request' && 'self-hosted' || 'ubuntu-latest' }}
+    runs-on: ${{ github.event_name == 'pull_request' && 'ubuntu-latest' || 'self-hosted' }}
     if: |
       ${{ 
         github.event_name == 'pull_request' && contains(github.event.pull_request.labels.*.name, 'performance') ||
         github.event_name == 'push'
       }}
+    env:
+      BRANCH_NAME: ${{ github.event_name == 'pull_request' && github.base_ref || 'HEAD~1' }}
     steps:
       - uses: actions/checkout@v4
       - uses: arduino/setup-protoc@v3
@@ -26,14 +28,14 @@ jobs:
       - uses: boa-dev/criterion-compare-action@v3
         with:
           cwd: opentelemetry
-          branchName: ${{ github.base_ref }}
+          branchName: ${{ env.BRANCH_NAME }}
       - uses: boa-dev/criterion-compare-action@v3
         with:
           cwd: opentelemetry-appender-tracing
           features: spec_unstable_logs_enabled
-          branchName: ${{ github.base_ref }}
+          branchName: ${{ env.BRANCH_NAME }}
       - uses: boa-dev/criterion-compare-action@v3
         with:
           cwd: opentelemetry-sdk
           features: rt-tokio,testing,metrics,logs,spec_unstable_metrics_views
-          branchName: ${{ github.base_ref }}
+          branchName: ${{ env.BRANCH_NAME }}