ability to init connection with url instead of config object

lib/client.js

@@ -2,13 +2,27 @@ var sys = require('sys');
 var net = require('net');
 var crypto = require('crypto');
 var EventEmitter = require('events').EventEmitter;
+var url = require('url');
 var Query = require(__dirname + '/query');
 var utils = require(__dirname + '/utils');
 
 var Connection = require(__dirname + '/connection');
 
+var parseConnectionString = function(str) {
+  var result = url.parse(str);
+  result.host = result.hostname;
+  result.database = result.pathname.slice(1);
+  var auth = (result.auth || ':').split(':');
+  result.user = auth[0];
+  result.password = auth[1];
+  return result;
+};
+
 var Client = function(config) {
   EventEmitter.call(this);
+  if(typeof config === 'string') {
+    config = parseConnectionString(config)
+  }
   config = config || {};
   this.user = config.user;
   this.database = config.database;

test/unit/client/connection-string-tests.js

@@ -0,0 +1,21 @@
+require(__dirname + '/test-helper');
+
+test("using connection string in client constructor", function() {
+  var client = new Client("postgres://brian:pw@boom:381/lala");
+  test("parses user", function() {
+    assert.equal(client.user,'brian');
+  })
+  test("parses password", function() {
+    assert.equal(client.password, 'pw');
+  })
+  test("parses host", function() {
+    assert.equal(client.host, 'boom');
+  })
+  test('parses port', function() {
+    assert.equal(client.port, 381)
+  })
+  test('parses database', function() {
+    assert.equal(client.database, 'lala')
+  })
+})
+