freeport-async - npm Package Compare versions

Comparing version 1.0.0 to 1.1.0

index.js

		var net = require('net');

		module.exports = function (rangeStart) {
		var DEFAULT_PORT_RANGE_START = 11000;

		function testPortAsync(port) {
		return new Promise(function (fulfill, reject) {
		var portrange = rangeStart \|\| 11000;
		function getPort (cb) {
		var port = portrange
		portrange += 1
		var server = net.createServer()
		server.listen(port, function (err) {
		server.once('close', function () {
		fulfill(true);
		});
		server.close();
		});
		server.on('error', function (err) {
		fulfill(false);
		});
		});
		}

		var server = net.createServer()
		server.listen(port, function (err) {
		server.once('close', function () {
		cb(port)
		})
		server.close()
		})
		server.on('error', function (err) {
		getPort(cb)
		})

		function freePortRangeAsync(rangeSize, rangeStart) {
		rangeSize = rangeSize \|\| 1;
		return new Promise(function (fulfill, reject) {
		var lowPort = rangeStart \|\| DEFAULT_PORT_RANGE_START;
		var awaitables = [];
		for (var i = 0; i < rangeSize; i++) {
		awaitables.push(testPortAsync(lowPort + i));
		}
		getPort(fulfill);
		return Promise.all(awaitables).then(function (results) {
		var ports = [];
		for (var i = 0; i < results.length; i++) {
		if (!results[i]) {
		return freePortRangeAsync(rangeSize, lowPort + rangeSize).then(fulfill, reject);
		}
		ports.push(lowPort + i);
		}
		fulfill(ports);
		});
		});
		};
		}

		function freePortAsync(rangeStart) {
		return freePortRangeAsync(1, rangeStart).then(function (result) {
		return result[0];
		});
		}

		module.exports = freePortAsync;

		module.exports.availableAsync = testPortAsync;
		module.exports.rangeAsync = freePortRangeAsync;

package.json

		{
		"name": "freeport-async",
		"version": "1.0.0",
		"version": "1.1.0",
		"description": "Uses mikeal's code to find an open port in a given range",
		@@ -5,0 +5,0 @@ "main": "index.js",

README.md

		# freeport
		Uses mikeal's code to find an open port in a given range,
		and presents a Promise-based interface

		Finds an available port for your application to use.
		You can specify a range where to look for an available port.
		And can also find a range of available ports for you to use.
		You can also be used to test to see if a given port is available.

		All functions are async and return Promises.


		Usage:
		@@ -14,5 +19,11 @@ ```js

		var isPort5000Available = await freeportAsync.availableAsync(5000);

		var listOf5ConsecutiveAvailablePorts = await freeportAsync.rangeAsync(5);

		var freeRangeIn12000Range = await freeportAsync.rangeAsync(3, 12000);

		```

		See https://gist.github.com/mikeal/1840641
		See also https://gist.github.com/mikeal/1840641

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