longjohn - npm Package Compare versions

Comparing version 0.2.1 to 0.2.2

dist/longjohn.js

@@ -72,7 +72,8 @@ (function() {
   exports.format_stack = function(err, frames) {
-    var lines;
+    var e, lines;
     lines = [];
     try {
       lines.push(err.toString());
-    } catch (e) {
+    } catch (_error) {
+      e = _error;
       console.log('Caught error in longjohn. Please report this to [e-mail].');
@@ -117,3 +118,3 @@ }
       });
-      if (!(error.__previous__ != null) && in_prepare === 1) {
+      if ((error.__previous__ == null) && in_prepare === 1) {
         error.__previous__ = current_trace_error;
@@ -177,2 +178,3 @@ }
     new_callback = function() {
+      var e;
       current_trace_error = trace_error;
@@ -182,3 +184,4 @@ trace_error = null;
         return callback.apply(this, arguments);
-      } catch (e) {
+      } catch (_error) {
+        e = _error;
         e.stack;
@@ -321,2 +324,6 @@ throw e;
 
+  if (process.env.NODE_ENV === 'production') {
+    console.warn('NOTICE: Longjohn is known to cause CPU usage due to its extensive data collection during runtime.\nIt generally should not be used in production applications.');
+  }
+
 }).call(this);

package.json

 {
   "name": "longjohn",
   "description": "Long stack traces for node.js inspired by https://github.com/tlrobinson/long-stack-traces",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "homepage": "https://github.com/mattinsler/longjohn",
@@ -29,4 +29,4 @@ "author": {
   "devDependencies": {
-    "grunt": "~0.3.15",
-    "grunt-contrib": "~0.3.0",
+    "grunt": "~0.4.0",
+    "grunt-contrib-coffee": "~0.7.0",
     "mocha": "latest",
@@ -33,0 +33,0 @@ "coffee-script": "latest"

README.md

@@ -13,2 +13,8 @@ # longjohn
 
+## Production Use
+
+Longjohn collects a large amount of data in order to provide useful stack traces. While it is very helpful in
+development and testing environments, it is not recommended to use longjohn in production. The data collection puts
+a lot of strain on V8's garbage collector and can greatly slow down heavily-loaded applications. 
+
 ## Installation
@@ -27,3 +33,5 @@
 ```javascript
-require('longjohn');
+if (process.env.NODE_ENV !== 'production'){
+  require('longjohn');
+}
 
@@ -30,0 +38,0 @@ // ... your code

New alerts

Environment variable access

Supply chain risk

Package accesses environment variables, which may be a sign of credential stuffing or data theft.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

23665

increased by4.16%

Lines of code

302

increased by2.03%

Number of lines in readme file

53

increased by17.78%

Worsened metrics

Number of low supply chain risk alerts

1

increased byInfinity%

No dependency changes