v2.0.3

With detached:true children, the synchronous exit handler must kill
the entire process group, not just the direct PID.

changelog.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 2026-03-04 - 2.0.3 - fix(smartexit)
+use native OS methods to kill process trees; remove tree-kill dependency
+
+- Replaced tree-kill usage with taskkill on Windows and process.kill(-pid) on POSIX.
+- Removed tree-kill package from dependencies and removed its export from plugins.
+- Handle ESRCH (no such process/group) as non-error when killing process groups.
+- Ensure trackedPids is cleared when a child process is removed.
+
 ## 2026-03-03 - 1.1.1 - fix(shutdown)
 kill full child process trees and add synchronous exit handler to force-kill remaining child processes
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartexit",
-  "version": "2.0.0",
+  "version": "2.0.3",
   "private": false,
   "description": "A library for managing graceful shutdowns of Node.js processes by handling cleanup operations, including terminating child processes.",
   "main": "dist_ts/index.js",
@@ -20,8 +20,7 @@
   },
   "dependencies": {
     "@push.rocks/lik": "^6.2.2",
-    "@push.rocks/smartpromise": "^4.2.3",
+    "@push.rocks/smartpromise": "^4.2.3"
-    "tree-kill": "^1.2.2"
   },
   "browserslist": [
     "last 1 chrome versions"

pnpm-lock.yaml

@@ -11,15 +11,9 @@ importers:
       '@push.rocks/lik':
         specifier: ^6.2.2
         version: 6.2.2
-      '@push.rocks/smartdelay':
-        specifier: ^3.0.5
-        version: 3.0.5
       '@push.rocks/smartpromise':
         specifier: ^4.2.3
         version: 4.2.3
-      tree-kill:
-        specifier: ^1.2.2
-        version: 1.2.2
     devDependencies:
       '@git.zone/tsbuild':
         specifier: ^4.0.2
@@ -853,24 +847,28 @@ packages:
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@rolldown/binding-linux-arm64-musl@1.0.0-beta.52':
     resolution: {integrity: sha512-ENLmSQCWqSA/+YN45V2FqTIemg7QspaiTjlm327eUAMeOLdqmSOVVyrQexJGNTQ5M8sDYCgVAig2Kk01Ggmqaw==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@rolldown/binding-linux-x64-gnu@1.0.0-beta.52':
     resolution: {integrity: sha512-klahlb2EIFltSUubn/VLjuc3qxp1E7th8ukayPfdkcKvvYcQ5rJztgx8JsJSuAKVzKtNTqUGOhy4On71BuyV8g==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@rolldown/binding-linux-x64-musl@1.0.0-beta.52':
     resolution: {integrity: sha512-UuA+JqQIgqtkgGN2c/AQ5wi8M6mJHrahz/wciENPTeI6zEIbbLGoth5XN+sQe2pJDejEVofN9aOAp0kaazwnVg==}
     engines: {node: ^20.19.0 || >=22.12.0}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@rolldown/binding-openharmony-arm64@1.0.0-beta.52':
     resolution: {integrity: sha512-1BNQW8u4ro8bsN1+tgKENJiqmvc+WfuaUhXzMImOVSMw28pkBKdfZtX2qJPADV3terx+vNJtlsgSGeb3+W6Jiw==}
@@ -918,21 +916,25 @@ packages:
     resolution: {integrity: sha512-211/XoBiooGGgUo/NxNpsrzGUXtH1d7g/4+UTtjYtfc8QHwu7ZMHcsqg0wss53fXzn/yyxd0DZ56vBHq52BiFw==}
     cpu: [arm64]
     os: [linux]
+    libc: [glibc]
 
   '@rspack/binding-linux-arm64-musl@1.6.7':
     resolution: {integrity: sha512-0WnqAWz3WPDsXGvOOA++or7cHpoidVsH3FlqNaAfRu6ni6n7ig/s0/jKUB+C5FtXOgmGjAGkZHfFgNHsvZ0FWw==}
     cpu: [arm64]
     os: [linux]
+    libc: [musl]
 
   '@rspack/binding-linux-x64-gnu@1.6.7':
     resolution: {integrity: sha512-iMrE0Q4IuYpkE0MjpaOVaUDYbQFiCRI9D3EPoXzlXJj4kJSdNheODpHTBVRlWt8Xp7UAoWuIFXCvKFKcSMm3aQ==}
     cpu: [x64]
     os: [linux]
+    libc: [glibc]
 
   '@rspack/binding-linux-x64-musl@1.6.7':
     resolution: {integrity: sha512-e7gKFxpdEQwYGk7lTC/hukTgNtaoAstBXehnZNk4k3kuU6+86WDrkn18Cd949iNqfIPtIG/wIsFNGbkHsH69hQ==}
     cpu: [x64]
     os: [linux]
+    libc: [musl]
 
   '@rspack/binding-wasm32-wasi@1.6.7':
     resolution: {integrity: sha512-yx88EFdE9RP3hh7VhjjW6uc6wGU0KcpOcZp8T8E/a+X8L98fX0aVrtM1IDbndhmdluIMqGbfJNap2+QqOCY9Mw==}

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartexit',
-  version: '1.1.1',
+  version: '2.0.3',
   description: 'A library for managing graceful shutdowns of Node.js processes by handling cleanup operations, including terminating child processes.'
 }

ts/smartexit.classes.lifecycle.ts

@@ -187,21 +187,24 @@ export class ProcessLifecycle {
     });
   }
 
-  /** Synchronous last-resort: SIGKILL any remaining child processes. */
+  /** Synchronous last-resort: SIGKILL any remaining tracked process groups. */
   private handleExit(): void {
     const instances = ProcessLifecycle.getInstances();
     let killed = 0;
 
     for (const instance of instances) {
-      const processes = instance.processesToEnd.getArray();
+      for (const pid of instance.trackedPids) {
-      for (const child of processes) {
+        // Kill entire process group (negative PID) for detached children
-        const pid = child.pid;
+        try {
-        if (pid && !child.killed) {
+          process.kill(-pid, 'SIGKILL');
+          killed++;
+        } catch {
+          // Process group may not exist, try single PID
           try {
             process.kill(pid, 'SIGKILL');
             killed++;
           } catch {
-            // Process may already be dead
+            // Process already dead
           }
         }
       }

ts/smartexit.classes.smartexit.ts

@@ -56,20 +56,32 @@ export type TProcessSignal =
 export class SmartExit {
   /** Kill an entire process tree by PID. */
   public static async killTreeByPid(pidArg: number, signalArg: TProcessSignal = 'SIGKILL') {
-    const done = plugins.smartpromise.defer();
+    if (process.platform === 'win32') {
-    plugins.treeKill.default(pidArg, signalArg, (err) => {
+      // Windows: use native taskkill for tree kill
-      if (err) {
+      try {
-        done.reject(err);
+        plugins.childProcess.execSync(`taskkill /T /F /PID ${pidArg}`, { stdio: 'ignore' });
-      } else {
+      } catch {
-        done.resolve();
+        // Process already dead
       }
-    });
+    } else {
-    await done.promise;
+      // POSIX: kill the entire process group via negative PID.
+      // Works even for grandchildren reparented to PID 1.
+      try {
+        process.kill(-pidArg, signalArg);
+      } catch (err: any) {
+        if (err.code !== 'ESRCH') {
+          // ESRCH = no such process/group, already dead — that's fine
+          throw err;
+        }
+      }
+    }
   }
 
   // Instance state
   public processesToEnd = new plugins.lik.ObjectMap<plugins.childProcess.ChildProcess>();
   public cleanupFunctions = new plugins.lik.ObjectMap<() => Promise<any>>();
+  /** PIDs tracked independently for tree-killing during shutdown. */
+  public trackedPids = new Set<number>();
   private options: ISmartExitOptions;
 
   private log(message: string, isError = false): void {
@@ -93,6 +105,9 @@ export class SmartExit {
   /** Register a child process for cleanup on shutdown. */
   public addProcess(childProcessArg: plugins.childProcess.ChildProcess) {
     this.processesToEnd.add(childProcessArg);
+    if (childProcessArg.pid) {
+      this.trackedPids.add(childProcessArg.pid);
+    }
   }
 
   /** Register an async cleanup function to run on shutdown. */
@@ -103,6 +118,9 @@ export class SmartExit {
   /** Unregister a child process. */
   public removeProcess(childProcessArg: plugins.childProcess.ChildProcess) {
     this.processesToEnd.remove(childProcessArg);
+    if (childProcessArg.pid) {
+      this.trackedPids.delete(childProcessArg.pid);
+    }
   }
 
   /**
@@ -126,23 +144,25 @@ export class SmartExit {
       }
     }
 
-    // Phase 2: Kill child process trees
+    // Phase 2: Kill ALL tracked process trees by PID.
-    for (const childProcessArg of processes) {
+    // We use trackedPids (not processesToEnd) because the process object may have
-      const pid = childProcessArg.pid;
+    // been removed by smartshell's exit handler before shutdown runs.
-      if (pid && !childProcessArg.killed) {
+    // We do NOT check .killed — the direct child may be dead but grandchildren alive.
-        try {
+    for (const pid of this.trackedPids) {
-          await SmartExit.killTreeByPid(pid, 'SIGTERM');
+      try {
-        } catch {
+        await SmartExit.killTreeByPid(pid, 'SIGTERM');
-          // SIGTERM failed — force kill
-          try {
-            await SmartExit.killTreeByPid(pid, 'SIGKILL');
-          } catch {
-            // Process may already be dead
-          }
-        }
         processesKilled++;
+      } catch {
+        // SIGTERM failed — force kill
+        try {
+          await SmartExit.killTreeByPid(pid, 'SIGKILL');
+          processesKilled++;
+        } catch {
+          // Process tree already dead — fine
+        }
       }
     }
+    this.trackedPids.clear();
 
     return { processesKilled, cleanupFunctionsRan };
   }

ts/smartexit.plugins.ts

@@ -9,9 +9,3 @@ import * as smartpromise from '@push.rocks/smartpromise';
 
 export { lik, smartpromise };
 
-// third party scope
-import * as treeKill from 'tree-kill';
-
-export {
-  treeKill
-}