npm-watch - npm Package Compare versions

Comparing version 0.9.0 to 0.10.0

package.json

 {
   "name": "npm-watch",
-  "version": "0.9.0",
+  "version": "0.10.0",
   "description": "run scripts from package.json when files change",
@@ -5,0 +5,0 @@ "main": "index.js",

README.md

@@ -5,2 +5,5 @@ # npm-watch
 
+## Common Issues
+
+- `monorepo setups`: In a monorepo setup, `npm-watch` may fail with `ENOENT`. The solution is to have nodemon globally installed. [See here for more context](https://github.com/M-Zuber/npm-watch/issues/83)
 ## Synopsis
@@ -129,2 +132,13 @@
 
+### Global Config
+
+#### `setMaxListeners`
+If too many listeners are added to an event emitter, [`node.js` will send a warning (rightfully so) about potential memory leaks](https://nodejs.org/docs/latest/api/events.html#events_emitter_setmaxlisteners_n).
+The default maximum is 10. If you need more than that, you can add a top level global config to your package.json
+```json
+"watchGlobalConfig": {
+    "setMaxListeners": true
+}
+```
+And max listeners will be set on the relevant processes to the minimum needed to avoid the warning.
 ### Options
@@ -131,0 +145,0 @@

watch-package.js

@@ -64,3 +64,8 @@ 'use strict';
   } else {
-
+    // We only look for the global watch config here, since it is otherwise not relevant
+    var setMaxListeners = null;
+    if (typeof pkg.watchGlobalConfig === 'object') {
+      setMaxListeners = pkg.watchGlobalConfig.setMaxListeners
+    }
+    var scriptsCount = Object.keys(pkg.watch).length;
   Object.keys(pkg.watch).forEach(function (script) {
@@ -70,3 +75,3 @@ if (!pkg.scripts[script]) {
     }
-    startScript(script, pkg, processes);
+    startScript(script, pkg, processes, setMaxListeners, scriptsCount + 1);
   })
@@ -99,3 +104,3 @@ }
 
-function startScript(script, pkg, processes) {
+function startScript(script, pkg, processes, setMaxListeners,  scriptsCount) {
   var exec = [npm, 'run', '-s', script].join(' ')
@@ -154,3 +159,8 @@ var patterns = null
     if (silent) { args = args.concat(['-q']) }
-	  if (runOnChangeOnly) { args = args.concat(['--on-change-only']) }
+    if (runOnChangeOnly) { args = args.concat(['--on-change-only']) }
+    if (setMaxListeners){
+      process.setMaxListeners(scriptsCount)
+      stdin.stdout.setMaxListeners(scriptsCount)
+      stdin.stderr.setMaxListeners(scriptsCount)
+    }
     args = args.concat(['--exec', exec])
@@ -157,0 +167,0 @@

New alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Fixed alerts

License Policy Violation

License

This package is not allowed per your license policy. Review the package's license to ensure compliance.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

14554

increased by9.77%

Lines of code

177

increased by6.63%

Number of lines in readme file

247

increased by6.01%

No dependency changes