repl: create a new Console instance for the repl when "useGlobal" is off

Now `console.log('blah')` will work in a REPL running over a socket.

Closes #3876.

lib/repl.js

@@ -47,6 +47,7 @@ var vm = require('vm');
 var path = require('path');
 var fs = require('fs');
 var rl = require('readline');
+var Console = require('console').Console;
 var EventEmitter = require('events').EventEmitter;
 
 // If obj.hasOwnProperty has been overridden, then calling
@@ -118,9 +119,6 @@ function REPLServer(prompt, stream, eval_, useGlobal, ignoreUndefined) {
     cb(err, result);
   };
 
-  self.resetContext();
-  self.bufferedCommand = '';
-
   if (!input && !output) {
     // legacy API, passing a 'stream'/'socket' option
     if (!stream) {
@@ -138,10 +136,12 @@ function REPLServer(prompt, stream, eval_, useGlobal, ignoreUndefined) {
     }
   }
 
-
   self.inputStream = input;
   self.outputStream = output;
 
+  self.resetContext();
+  self.bufferedCommand = '';
+
   self.prompt = (prompt != undefined ? prompt : '> ');
 
   function complete(text, callback) {
@@ -338,14 +338,15 @@ REPLServer.prototype.createContext = function() {
   if (!this.useGlobal) {
     var context = vm.createContext();
     for (var i in global) context[i] = global[i];
+    context.console = new Console(this.outputStream);
+    context.global = context;
+    context.global.global = context;
   } else {
     var context = global;
   }
 
   context.module = module;
   context.require = require;
-  context.global = context;
-  context.global.global = context;
 
   this.lines = [];
   this.lines.level = [];

test/simple/test-repl-console.js

@@ -0,0 +1,43 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+var common = require('../common'),
+    assert = require('assert'),
+    Stream = require('stream'),
+    repl = require('repl');
+
+// create a dummy stream that does nothing
+var stream = new Stream();
+stream.write = stream.pause = stream.resume = function(){};
+stream.readable = stream.writable = true;
+
+var r = repl.start({
+  input: stream,
+  output: stream,
+  useGlobal: false
+});
+
+
+// ensure that the repl context gets its own "console" instance
+assert(r.context.console);
+
+// ensure that the repl console instance is not the global one
+assert.notStrictEqual(r.context.console, console);