Wrap some CLI functions in a Fiber

app/lib/fiber-helpers.js

@@ -0,0 +1,21 @@
+// node (v8) defaults to only recording 10 lines of stack trace.
+// this becomes especially bad when using fibers, since you get deeper
+// stack traces that would have been split up between different callbacks
+//
+// this only affects the `meteor` executable, not server code on
+// meteor apps.
+Error.stackTraceLimit = Infinity; // http://code.google.com/p/v8/wiki/JavaScriptStackTraceApi
+
+var Fiber = require("fibers");
+
+// runs a function within a fiber. we wrap the entry point into meteor.js into a fiber
+// but if you use callbacks that call synchronous code you need to wrap those as well.
+//
+// NOTE: It's probably better to not use callbacks. Instead you can
+// use Futures to generate synchronous equivalents.
+exports.inFiber = function(func) {
+  return function() {
+    new Fiber(func).run();
+  };
+};
+

app/meteor/deploy.js

@@ -13,6 +13,7 @@ var files = require(path.join(__dirname, '..', 'lib', 'files.js'));
 var _ = require('underscore');
 var keypress = require('keypress');
 var child_process = require('child_process');
+var inFiber = require(path.join(__dirname, '..', 'lib', 'fiber-helpers.js')).inFiber;
 
 //
 // configuration
@@ -352,6 +353,8 @@ var read_password = function (callback) {
 var with_password = function (site, callback) {
   var check_url = "https://" + DEPLOY_HOSTNAME + "/has_password/" + site;
 
+  callback = inFiber(callback);
+
   request(check_url, function (error, response, body) {
     if (error || response.statusCode !== 200) {
       callback();

app/meteor/run.js

@@ -11,6 +11,7 @@ var updater = require(path.join(__dirname, '..', 'lib', 'updater.js'));
 var bundler = require(path.join(__dirname, '..', 'lib', 'bundler.js'));
 var mongo_runner = require(path.join(__dirname, '..', 'lib', 'mongo_runner.js'));
 var mongoExitCodes = require(path.join(__dirname, '..', 'lib', 'mongo_exit_codes.js'));
+var inFiber = require(path.join(__dirname, '..', 'lib', 'fiber-helpers.js')).inFiber;
 
 var _ = require('underscore');
 
@@ -601,7 +602,7 @@ exports.run = function (app_dir, bundle_opts, port, once, settingsFile) {
     }
   };
 
-  var restart_server = function () {
+  var restart_server = inFiber(function () {
     Status.running = false;
     Status.listening = false;
     if (server_handle)
@@ -700,7 +701,7 @@ exports.run = function (app_dir, bundle_opts, port, once, settingsFile) {
           }});
       }
     };
-  };
+  });
 
 
   var mongo_err_count = 0;