fix: if no process run in port

package.json

@@ -48,7 +48,7 @@
     "prepublishOnly": "nr build",
     "release": "bumpp && npm publish",
     "start": "esno src/index.ts",
-    "test": "vitest",
+    "test": "vitest -w",
     "typecheck": "tsc --noEmit",
     "prepare": "simple-git-hooks",
     "update:deps": "taze major -w -r && pnpm install"

src/execa.ts

@@ -5,6 +5,13 @@ import type { execResult } from './types'
 
 export function execa(otherArgs: string): Promise<execResult> {
   try {
+    if (otherArgs === '') {
+      return Promise.resolve({
+        out: 'Execa nothing',
+        err: '',
+      })
+    }
+
     const { cmd, arg } = getCommandByPlatform()
 
     const child = spawn(cmd, [arg, otherArgs], { stdio: 'pipe', cwd: process.cwd() })
@@ -50,6 +57,13 @@ export function execa(otherArgs: string): Promise<execResult> {
 export function execaSync(otherArgs: string): execResult {
   const { cmd, arg } = getCommandByPlatform()
 
+  if (otherArgs === '') {
+    return {
+      out: 'Execasync nothing',
+      err: '',
+    }
+  }
+
   const result = spawnSync(cmd, [arg, otherArgs], { cwd: process.cwd(), encoding: 'utf-8' })
 
   return {

src/releasePort.ts

@@ -87,7 +87,7 @@ function killPort(platform: 'win32', pids: string[]): string
 function killPort(platform: Exclude<NodeJS.Platform, 'win32'>, method: 'udp' | 'tcp', port: number): string
 function killPort(platform: NodeJS.Platform, ops?: any, port?: number): string {
   if (platform === 'win32') {
-    return `TaskKill /F /PID ${ops?.join(' /PID ')}`
+    return ops.length ? `TaskKill /F /PID ${ops?.join(' /PID ')}` : ''
   }
   else {
     return `lsof -i ${ops === 'udp' ? 'udp' : 'tcp'}:${port} | grep ${ops === 'udp' ? 'UDP' : 'LISTEN'} | awk '{print $2}' | xrags kill -9`

test/releasePort.test.ts

@@ -0,0 +1,22 @@
+import { describe, expect, it } from 'vitest'
+import { release, releaseSync } from '../src'
+
+describe('releasePort', () => {
+  it('releaseSync', () => {
+    expect(releaseSync(1234)).toMatchInlineSnapshot(`
+      {
+        "err": "",
+        "out": "Execasync nothing",
+      }
+    `)
+  })
+
+  it('release', async () => {
+    expect(await release(1234)).toMatchInlineSnapshot(`
+      {
+        "err": "",
+        "out": "Execa nothing",
+      }
+    `)
+  })
+})