feat: add @codspeed/vitest-plugin and CodSpeed benchmarks workflow

Author: DevilTea

.github/workflows/codspeed.yml

@@ -0,0 +1,37 @@
+name: CodSpeed Benchmarks
+
+on:
+  push:
+    branches:
+      - main # or "master"
+  pull_request:
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
+
+jobs:
+  benchmarks:
+    name: Run benchmarks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: setup pnpm
+        uses: pnpm/action-setup@v4
+
+      - name: setup node
+        uses: actions/setup-node@v4
+        with:
+          node-version: lts/*
+
+      - name: install dependencies
+        run: pnpm install --frozen-lockfile
+
+      - name: build
+        run: pnpm build
+
+      - name: run the benchmarks
+        uses: CodSpeedHQ/action@v4
+        with:
+          mode: instrumentation
+          run: pnpm -w bench

package.json

@@ -37,6 +37,7 @@
 	},
 	"devDependencies": {
 		"@clack/prompts": "catalog:",
+		"@codspeed/vitest-plugin": "^5.0.1",
 		"@deviltea/eslint-config": "catalog:",
 		"@deviltea/tsconfig": "catalog:",
 		"@types/node": "catalog:",