bind to localhost instead of all interfaces, and fix closureWrap

lib/devc.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// Command line tool to run the checker on a Dart program.
 library dev_compiler.devc;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
@@ skipping 257 matching lines @@
 
   Future start() async {
     // Create output directory if needed. shelf_static will fail otherwise.
     var out = new Directory(outDir);
     if (!await out.exists()) await out.create(recursive: true);
 
     var handler = const shelf.Pipeline()
         .addMiddleware(rebuildAndCache)
         .addHandler(shelf_static.createStaticHandler(outDir,
             defaultDocument: _entryPath));
-    await shelf.serve(handler, '0.0.0.0', port);
+    await shelf.serve(handler, 'localhost', port);

[Siggi Cherem (dart-lang), 2015/03/19 21:15:02]

mmm, I used to have this but change it to 0.0.0.0 to make it work behind a
proxy. Maybe we can make this a flag instead? I'm ok making localhost the
default.

[Jennifer Messerly, 2015/03/19 21:18:24]

for flag: can it be host name to connect to? That way you can say which
interface to connect, e.g.
--host=192.168.0.2 or --host=jmesserly.at.my.domain and of course, it would
support --host=0.0.0.0. We could also have that example in the help text

     compiler.run();
   }
 
   shelf.Handler rebuildAndCache(shelf.Handler handler) => (request) {
     _log.fine('requested $GREEN_COLOR${request.url}$NO_COLOR');
     // Trigger recompile only when requesting the HTML page.
     var segments = request.url.pathSegments;
     bool isEntryPage = segments.length == 0 || segments[0] == _entryPath;
     if (isEntryPage) compiler._runAgain();
 
@@ skipping 14 matching lines @@
       // Note: the cache-control header should be enough, but this doesn't hurt
       // and can help renew the policy after it expires.
       headers['ETag'] = segments[1];
     }
     return response.change(headers: headers);
   };
 }
 
 final _log = new Logger('dev_compiler');
 final _earlyErrorResult = new CheckerResults(const [], null, true);