Cleanup a bit of dead code

lib/client.js

@@ -6,9 +6,9 @@
  * README.md file in the root directory of this source tree.
  */
 
-var crypto = require('crypto');
 var EventEmitter = require('events').EventEmitter;
 var util = require('util');
+var utils = require('./utils')
 var pgPass = require('pgpass');
 var TypeOverrides = require('./type-overrides');
 
@@ -97,8 +97,8 @@ Client.prototype.connect = function(callback) {
 
   //password request handling
   con.on('authenticationMD5Password', checkPgPass(function(msg) {
-    var inner = Client.md5(self.password + self.user);
-    var outer = Client.md5(Buffer.concat([Buffer.from(inner), msg.salt]));
+    var inner = utils.md5(self.password + self.user);
+    var outer = utils.md5(Buffer.concat([Buffer.from(inner), msg.salt]));
     var md5password = "md5" + outer;
     con.password(md5password);
   }));
@@ -406,10 +406,6 @@ Client.prototype.end = function (cb) {
   }
 };
 
-Client.md5 = function (string) {
-  return crypto.createHash('md5').update(string, 'utf-8').digest('hex');
-};
-
 // expose a Query constructor
 Client.Query = Query;
 

lib/index.js

@@ -12,7 +12,22 @@ var Client = require('./client');
 var defaults =  require('./defaults');
 var Connection = require('./connection');
 var ConnectionParameters = require('./connection-parameters');
-var poolFactory = require('./pool-factory');
+var Pool = require('pg-pool');
+
+const poolFactory = (Client) => {
+  var BoundPool = function(options) {
+    var config = { Client: Client };
+    for (var key in options) {
+      config[key] = options[key];
+    }
+    Pool.call(this, config);
+  };
+
+  util.inherits(BoundPool, Pool);
+
+  return BoundPool;
+};
+
 
 var PG = function(clientConstructor) {
   this.defaults = defaults;

lib/native/index.js

@@ -1 +1 @@
-module.exports = require('./client');
+module.exports = require('./client')

lib/pool-factory.js

@@ -1,17 +0,0 @@
-var Client = require('./client');
-var util = require('util');
-var Pool = require('pg-pool');
-
-module.exports = function(Client) {
-  var BoundPool = function(options) {
-    var config = { Client: Client };
-    for (var key in options) {
-      config[key] = options[key];
-    }
-    Pool.call(this, config);
-  };
-
-  util.inherits(BoundPool, Pool);
-
-  return BoundPool;
-};

lib/promise.js

@@ -1,12 +0,0 @@
-const util = require('util')
-const deprecationMessage = 'Using the promise result as an event emitter is deprecated and will be removed in pg@8.0'
-module.exports = function(emitter, callback) {
-  const promise = new global.Promise(callback)
-  promise.on = util.deprecate(function () {
-    emitter.on.apply(emitter, arguments)
-  }, deprecationMessage);
-
-  promise.once = util.deprecate(function () {
-    emitter.once.apply(emitter, arguments)
-  }, deprecationMessage)
-}

lib/utils.js

@@ -7,7 +7,9 @@
  */
 
 const util = require('util')
-var defaults = require('./defaults');
+const crypto = require('crypto');
+
+const defaults = require('./defaults');
 
 function escapeElement(elementRepresentation) {
   var escaped = elementRepresentation
@@ -138,6 +140,11 @@ function normalizeQueryConfig (config, values, callback) {
   return config;
 }
 
+
+const md5 = function (string) {
+  return crypto.createHash('md5').update(string, 'utf-8').digest('hex');
+};
+
 module.exports = {
   prepareValue: function prepareValueWrapper (value) {
     //this ensures that extra arguments do not get passed into prepareValue
@@ -145,4 +152,5 @@ module.exports = {
     return prepareValue(value);
   },
   normalizeQueryConfig: normalizeQueryConfig,
+  md5: md5,
 };

test/unit/client/md5-password-tests.js

@@ -1,4 +1,5 @@
-require(__dirname + '/test-helper');
+require('./test-helper');
+var utils = require('../../../lib/utils')
 
 test('md5 authentication', function() {
   var client = createClient();
@@ -9,8 +10,8 @@ test('md5 authentication', function() {
   test('responds', function() {
     assert.lengthIs(client.connection.stream.packets, 1);
     test('should have correct encrypted data', function() {
-      var encrypted = Client.md5(client.password + client.user);
-      encrypted = Client.md5(encrypted + salt.toString('binary'));
+      var encrypted = utils.md5(client.password + client.user);
+      encrypted = utils.md5(encrypted + salt.toString('binary'));
       var password = "md5" + encrypted
       //how do we want to test this?
       assert.equalBuffers(client.connection.stream.packets[0], new BufferList()
@@ -20,5 +21,5 @@ test('md5 authentication', function() {
 });
 
 test('md5 of utf-8 strings', function() {
-  assert.equal(Client.md5('😊'), '5deda34cd95f304948d2bc1b4a62c11e');
+  assert.equal(utils.md5('😊'), '5deda34cd95f304948d2bc1b4a62c11e');
 });