ci: add benchmark workflow

Author: pulsejet

.github/workflows/bench.yml

@@ -0,0 +1,49 @@
+name: Benchmark
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: write
+  deployments: write
+  pull-requests: write
+
+jobs:
+  benchmark:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v4
+        with:
+          go-version: stable
+
+      - name: Run benchmark
+        run: go test ./... -benchmem -bench ^Benchmark -benchtime=300000x | tee bench.log
+
+      - name: Check benchmark result
+        uses: benchmark-action/github-action-benchmark@v1
+        with:
+          name: Go Benchmark
+          tool: go
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          output-file-path: bench.log
+          alert-threshold: '200%'
+          comment-on-alert: true
+          fail-on-alert: true
+          summary-always: true
+          alert-comment-cc-users: '@pulsejet'
+
+      - name: Store benchmark result
+        uses: benchmark-action/github-action-benchmark@v1
+        if: github.event_name != 'pull_request'
+        with:
+          name: Go Benchmark
+          tool: go
+          output-file-path: bench.log
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          auto-push: true
+          fail-on-alert: true

.github/workflows/build.yml

@@ -12,9 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-22.04, ubuntu-24.04,
-             macos-13, macos-14,
-             windows-2022]
+        os: [ubuntu-latest, macos-latest, windows-latest]
       fail-fast: false
     steps:
       - name: Checkout repository

.github/workflows/lint.yml

@@ -1,6 +1,7 @@
 name: lint
 on:
   push:
+    branches: ["main"]
   pull_request:
 
 jobs: