detect-port - npm Package Compare versions

Comparing version 0.1.3 to 0.1.4

HISTORY.md

@@ -0,1 +1,6 @@
+0.1.4 / 2015-08-24
+===================
+
+  * Support promise
+
 0.1.2 / 2014-05-31
@@ -2,0 +7,0 @@ ===================

lib/index.js

@@ -29,53 +29,55 @@ /* ================================================================
 
-  var _detect = function(_fn) {
-    var socket = new net.Socket();
-    socket.once('error', function() {
-      socket.removeAllListeners('connect');
-      socket.removeAllListeners('error');
-      socket.end();
-      socket.destroy();
-      socket.unref();
-      var server = new net.Server();
-      server.on('error', function() {
+  var _detect = function(port) {
+    return new Promise(function(resolve, reject) {
+      var socket = new net.Socket();
+      socket.once('error', function() {
+        socket.removeAllListeners('connect');
+        socket.removeAllListeners('error');
+        socket.end();
+        socket.destroy();
+        socket.unref();
+        var server = new net.Server();
+        server.on('error', function() {
+          inject(port);
+          port++;
+          resolve(_detect(port));
+        });
+
+        server.listen(port, function() {
+          server.once('close', function() {
+            resolve(port);
+          });
+          server.close();
+        });
+      });
+      socket.once('connect', function() {
         inject(port);
         port++;
-
-        if (fn) {
-          _detect(_fn);
-        } else {
-          detect(port)(_fn);
-        }
+        resolve(_detect(port));
+        socket.removeAllListeners('connect');
+        socket.removeAllListeners('error');
+        socket.end();
+        socket.destroy();
+        socket.unref();
       });
-
-      server.listen(port, function() {
-        server.once('close', function() {
-          _fn(null, port);
-        });
-        server.close();
+      socket.connect({
+        port: port,
+        host: ipv4
       });
     });
-    socket.once('connect', function() {
-      inject(port);
-      port++;
+  }
 
-      if (fn) {
-        _detect(_fn);
-      } else {
-        detect(port)(_fn);
-      }
-      socket.removeAllListeners('connect');
-      socket.removeAllListeners('error');
-      socket.end();
-      socket.destroy();
-      socket.unref();
-    });
-    socket.connect({
-      port: port,
-      host: ipv4
-    });
+  var _detect_with_cb = function(_fn) {
+    _detect(port)
+      .then(function(result) {
+        _fn(null, result);
+      })
+      .catch(function(e) {
+        _fn(e);
+      });
   };
 
-  return fn ? _detect(fn) : _detect;
+  return fn ? _detect_with_cb(fn) : _detect(port);
 }
 
 module.exports = detect;

package.json

 {
   "name": "detect-port",
-  "version": "0.1.3",
+  "version": "0.1.4",
   "description": "port detector",
@@ -38,3 +38,3 @@ "keywords": [
   "engines": {
-    "node": ">= 11.14.x"
+    "node": ">= 0.11.14"
   },
@@ -41,0 +41,0 @@ "author": "xudafeng",

README.md

@@ -83,2 +83,16 @@ detect-port
 
+/**
+ * use as a promise
+ */
+
+var promisePort = detect(port);
+
+promisePort.then(function(_port) {
+  if (port === _port) {
+    console.log('port: %d was not occupied', port);
+  } else {
+    console.log('port: %d was occupied, try port: %d', port, _port);
+  }
+});
+
 ```
@@ -85,0 +99,0 @@

New alerts

New author

Supply chain risk

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

9775

5.62%

Lines of code

86

3.61%

Number of lines in readme file

120

13.21%

Worsened metrics

Number of medium supply chain risk alerts

2

100%

No dependency changes