feat: support Node 24

- bump `.nvmrc` and `engines.node` to 24.19.0, which also moves the
  CodSpeed instrumented, memory and walltime runs to Node 24
- add Node 24 to the example matrix. Its Node 20 entry moves from the
  stale 20.5.1 pin (it only mirrored the old `engines` value) to 20,
  because `node --import` needs `module.register`, added in 20.6.0
- run the ESM TypeScript benches with tsx: esbuild-register's ESM loader
  no longer intercepts `.ts` on Node >= 22, so those benches died with
  `Cannot use import statement outside a module`. `node --import tsx`
  keeps the benchmark in a single process, so the runner's PATH shim
  still delivers the V8 flags through `process.execArgv`
- import the plugin by name in its own bench, since tsx resolves a
  relative directory import to `index.ts` instead of going through the
  package exports

Author: not-matthias

.github/workflows/ci.yml

@@ -49,7 +49,7 @@ jobs:
     needs: list-examples
     strategy:
       matrix:
-        node-version: ["18", "20.5.1"]
+        node-version: ["18", "20", "24"]
         example: ${{ fromJson(needs.list-examples.outputs.examples) }}
         # tinybench v5+ requires Node >=20, so its examples cannot run on Node 18
         exclude:

.nvmrc

@@ -1 +1 @@
-20.5.1
+24.19.0

examples/with-tinybench-v5/package.json

@@ -3,13 +3,13 @@
   "private": true,
   "type": "module",
   "scripts": {
-    "bench-tinybench": "node --loader esbuild-register/loader -r esbuild-register tinybench.ts",
+    "bench-tinybench": "node --import tsx tinybench.ts",
     "typecheck": "tsc --noEmit --pretty"
   },
   "devDependencies": {
     "@codspeed/tinybench-plugin": "workspace:*",
-    "esbuild-register": "^3.4.2",
     "tinybench": "^5.1.0",
+    "tsx": "^4.23.12",
     "typescript": "^5.1.3"
   }
 }

examples/with-tinybench-v6/package.json

@@ -3,13 +3,13 @@
   "private": true,
   "type": "module",
   "scripts": {
-    "bench-tinybench": "node --loader esbuild-register/loader -r esbuild-register tinybench.ts",
+    "bench-tinybench": "node --import tsx tinybench.ts",
     "typecheck": "tsc --noEmit --pretty"
   },
   "devDependencies": {
     "@codspeed/tinybench-plugin": "workspace:*",
-    "esbuild-register": "^3.4.2",
     "tinybench": "^6.0.2",
+    "tsx": "^4.23.12",
     "typescript": "^5.1.3"
   }
 }

examples/with-typescript-esm/package.json

@@ -3,8 +3,8 @@
   "private": true,
   "type": "module",
   "scripts": {
-    "bench-benchmark-js": "node --loader esbuild-register/loader -r esbuild-register bench/benchmark.js/index.bench.ts",
-    "bench-tinybench": "node --loader esbuild-register/loader -r esbuild-register bench/tinybench/index.bench.ts",
+    "bench-benchmark-js": "node --import tsx bench/benchmark.js/index.bench.ts",
+    "bench-tinybench": "node --import tsx bench/tinybench/index.bench.ts",
     "bench-vitest": "vitest bench --run"
   },
   "devDependencies": {
@@ -13,8 +13,8 @@
     "@codspeed/vitest-plugin": "workspace:*",
     "@types/benchmark": "^2.1.2",
     "benchmark": "^2.1.4",
-    "esbuild-register": "^3.4.2",
     "tinybench": "^4.0.1",
+    "tsx": "^4.23.12",
     "typescript": "^5.1.3",
     "vitest": "^4.0.18"
   }

examples/with-typescript-simple-esm/package.json

@@ -3,16 +3,16 @@
   "private": true,
   "type": "module",
   "scripts": {
-    "bench-benchmark-js": "node --loader esbuild-register/loader -r esbuild-register benchmark-js.ts",
-    "bench-tinybench": "node --loader esbuild-register/loader -r esbuild-register tinybench.ts"
+    "bench-benchmark-js": "node --import tsx benchmark-js.ts",
+    "bench-tinybench": "node --import tsx tinybench.ts"
   },
   "devDependencies": {
     "@codspeed/benchmark.js-plugin": "workspace:*",
     "@codspeed/tinybench-plugin": "workspace:*",
     "@types/benchmark": "^2.1.2",
     "benchmark": "^2.1.4",
-    "esbuild-register": "^3.4.2",
     "tinybench": "^4.0.1",
+    "tsx": "^4.23.12",
     "typescript": "^5.1.3"
   }
 }

package.json

@@ -19,7 +19,7 @@
     "@rollup/plugin-node-resolve": "^15.2.3",
     "@rollup/plugin-typescript": "^11.1.5",
     "@types/jest": "^29.5.0",
-    "@types/node": "^20.5.1",
+    "@types/node": "^24.10.1",
     "@typescript-eslint/eslint-plugin": "^8.57.0",
     "@typescript-eslint/parser": "^8.57.0",
     "esbuild": "^0.17.16",
@@ -43,6 +43,6 @@
   },
   "packageManager": "pnpm@10.12.4",
   "engines": {
-    "node": "20.5.1"
+    "node": "24.19.0"
   }
 }

packages/tinybench-plugin/benches/sample.ts

@@ -1,5 +1,5 @@
+import { withCodSpeed } from "@codspeed/tinybench-plugin";
 import { Bench } from "tinybench";
-import { withCodSpeed } from "..";
 import parsePr from "./parsePr";
 import { registerTimingBenchmarks } from "./timing";
 

packages/tinybench-plugin/package.json

@@ -28,16 +28,16 @@
     "typecheck": "tsc --noEmit --pretty",
     "format": "prettier --config ../../.prettierrc.json --ignore-path ../../.prettierignore --check .",
     "fix-format": "prettier --config ../../.prettierrc.json --ignore-path ../../.prettierignore --write .",
-    "bench": "node --loader esbuild-register/loader -r esbuild-register benches/sample.ts",
+    "bench": "node --import tsx benches/sample.ts",
     "clean": "rm -rf dist"
   },
   "author": "Arthur Pastel <arthur@codspeed.io>",
   "repository": "https://github.com/CodSpeedHQ/codspeed-node",
   "homepage": "https://codspeed.io",
   "license": "Apache-2.0",
   "devDependencies": {
-    "esbuild-register": "^3.4.2",
     "tinybench": "^4.0.1",
+    "tsx": "^4.23.12",
     "vitest": "^3.2.4"
   },
   "dependencies": {