disable watch for production with hotImport (#907)

src/config.ts

@@ -50,7 +50,7 @@ Raven.disableConsoleAlerts()
 
 Raven
 .config(
-  process.env.NODE_ENV === 'production'
+  isProduction()
     && 'https://f6770399ee65459a82af82650231b22c:d8d11b283deb441e807079b8bb2c45cd@sentry.io/179672',
   {
     release: VERSION,
@@ -233,6 +233,11 @@ export function qrcodeValueToImageUrl(qrcodeValue: string): string {
   ].join('')
 }
 
+export function isProduction(): boolean {
+  return process.env.NODE_ENV === 'production'
+      || process.env.NODE_ENV === 'prod'
+}
+
 export {
   log,
   Raven,

src/wechaty.ts

@@ -55,6 +55,7 @@ import {
 import {
   VERSION,
   config,
+  isProduction,
   log,
   Raven,
   Sayable,
@@ -488,7 +489,8 @@ export class Wechaty extends Accessory implements Sayable {
 
   private addListenerModuleFile(event: WechatyEventName, modulePath: string): void {
     const absoluteFilename = callerResolve(modulePath, __filename)
-    log.verbose('Wechaty', 'onModulePath() hotImpor(%s)', absoluteFilename)
+    log.verbose('Wechaty', 'onModulePath() hotImport(%s)', absoluteFilename)
+
     hotImport(absoluteFilename)
       .then((func: Function) => super.on(event, (...args: any[]) => {
         try {
@@ -504,6 +506,11 @@ export class Wechaty extends Accessory implements Sayable {
                               event, modulePath, e)
         this.emit('error', e)
       })
+
+    if (isProduction()) {
+      log.silly('Wechaty', 'addListenerModuleFile() disable watch for hotImport because NODE_ENV is production.')
+      hotImport(absoluteFilename, false)
+    }
   }
 
   private addListenerFunction(event: WechatyEventName, listener: Function): void {