Add comment to clarify process.exit(0) (#161)

Copied from actions/cache#1217
astral-sh · Nov 23, 2024 · 9b71657 · 9b71657
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diff --git a/dist/save-cache/index.js b/dist/save-cache/index.js
diff --git a/src/save-cache.ts b/src/save-cache.ts
@@ -20,6 +20,11 @@ export async function run(): Promise<void> {
     const err = error as Error;
     core.setFailed(err.message);
   }
+  // node will stay alive if any promises are not resolved,
+  // which is a possibility if HTTP requests are dangling
+  // due to retries or timeouts. We know that if we got here
+  // that all promises that we care about have successfully
+  // resolved, so simply exit with success.
   process.exit(0);
 }