perf: release ee handlers on process end

src/main/ts/spawn.ts

@@ -140,9 +140,9 @@ export const buildSpawnOpts = ({spawnOpts, stdio, cwd, shell, input, env, detach
  signal
 })
 
-export const attachListeners = (ee: EventEmitter, on: Partial<TSpawnListeners> = {}) => {
+export const toggleListeners = (pos: 'on' | 'off', ee: EventEmitter, on: Partial<TSpawnListeners> = {}) => {
  for (const [name, listener] of Object.entries(on)) {
- ee.on(name, listener as any)
+ ee[pos](name, listener as any)
  }
 }
 
@@ -159,7 +159,7 @@ export const invoke = (c: TSpawnCtxNormalized): TSpawnCtxNormalized => {
 
  try {
  if (c.sync) {
- attachListeners(c.ee, c.on)
+ toggleListeners('on', c.ee, c.on)
  const opts = buildSpawnOpts(c)
  const result = c.spawnSync(c.cmd, c.args, opts)
  c.ee.emit('start', result, c)
@@ -186,7 +186,7 @@ export const invoke = (c: TSpawnCtxNormalized): TSpawnCtxNormalized => {
 
  } else {
  c.run(() => {
- attachListeners(c.ee, c.on)
+ toggleListeners('on', c.ee, c.on)
 
  let error: any = null
  const opts = buildSpawnOpts(c)
@@ -259,6 +259,8 @@ export const invoke = (c: TSpawnCtxNormalized): TSpawnCtxNormalized => {
  )
  c.ee.emit('err', error, c)
  c.ee.emit('end', c.fulfilled, c)
+ } finally {
+ toggleListeners('off', c.ee, c.on)
  }
 
  return c