Drop process.exit() to let Node shut down naturally

.github/workflows/ci.yaml

@@ -11,11 +11,6 @@ jobs:
       matrix:
         js: [[node, 22], [node, 24], [node, 26], [bun, latest]]
         os: [ubuntu-latest, macos-latest, windows-latest]
-        exclude: # https://github.com/nodejs/node/issues/56645
-          - js: [node, 24]
-            os: windows-latest
-          - js: [node, 26]
-            os: windows-latest
     runs-on: ${{matrix.os}}
     steps:
       - uses: actions/checkout@v6

index.ts

@@ -1,5 +1,5 @@
 #!/usr/bin/env node
-import {argv, cwd, stdout, stderr, exit, platform, versions} from "node:process";
+import {argv, cwd, stdout} from "node:process";
 import {stripVTControlCharacters, styleText, parseArgs} from "node:util";
 import {dirname, isAbsolute, resolve} from "node:path";
 import {statSync} from "node:fs";
@@ -12,7 +12,9 @@ import {prewarmOrigins} from "./utils/prewarm.ts";
 import type {Arg} from "./config.ts";
 import type {Output, UpdatesOptions} from "./api.ts";
 
-for (const url of prewarmOrigins(cwd(), argv.slice(2))) fetch(url, {method: "HEAD"}).catch(() => {});
+const prewarmAbort = new AbortController();
+const prewarms = prewarmOrigins(cwd(), argv.slice(2))
+  .map(url => fetch(url, {method: "HEAD", signal: prewarmAbort.signal}).catch(() => {}));
 
 const result = parseArgs({
   strict: false,
@@ -76,18 +78,12 @@ async function end(err?: Error | void, exitCode?: number): Promise<void> {
     }
   }
 
-  if (platform === "win32" && Number(versions?.node?.split(".")[0]) >= 23) {
-    await new Promise(resolve => setTimeout(resolve, 50));
-  }
-
-  exit(exitCode ?? (err ? 1 : 0));
+  prewarmAbort.abort();
+  await Promise.all(prewarms);
+  process.exitCode = exitCode ?? (err ? 1 : 0);
 }
 
 async function main(): Promise<void> {
-  for (const stream of [stdout, stderr]) {
-    (stream as any)?._handle?.setBlocking?.(true);
-  }
-
   const maxSockets = 25;
 
   if (args.help) {
@@ -137,11 +133,13 @@ async function main(): Promise<void> {
     $ updates -f docker-compose.yml
 `);
     await end();
+    return;
   }
 
   if (args.version) {
     console.info(packageVersion);
     await end();
+    return;
   }
 
   const fileSet = parseMixedArg(args.file);