stop the packager from running

gulpfile.js

@@ -34,7 +34,7 @@ var tsCompileOptions = {
 };
 
 function spawnCommand(command, args, callback, silent, detached) {
-    var options = {};
+    var options = { maxBuffer: 1024 * 1024 };
     if (detached) {
         options.detached = true;
         options.stdio = ["ignore"];
@@ -55,7 +55,7 @@ function spawnCommand(command, args, callback, silent, detached) {
 };
 
 function execCommand(command, args, callback, silent) {
-    var execProcess = child_process.exec(command + " " + args.join(" "));
+    var execProcess = child_process.exec(command + " " + args.join(" "), { maxBuffer: 1024 * 1024 });
         
     if (!silent) execProcess.stdout.pipe(process.stdout);
     if (!silent) execProcess.stderr.pipe(process.stderr);

test/template/ios/launchPackager.command

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# This file replaces the file that starts the packager during iOS builds and prevents it from starting.
+# It belongs in node_modules/react-native/packager

test/test.ts

@@ -193,6 +193,10 @@ class RNIOS extends Platform.IOS implements RNPlatform {
             // Fix the linker flag list in project.pbxproj (pod install adds an extra comma)
             .then(TestUtil.replaceString.bind(undefined, path.join(iOSProject, TestConfig.TestAppName + ".xcodeproj", "project.pbxproj"), 
                 "\"[$][(]inherited[)]\",\\s*[)];", "\"$(inherited)\"\n\t\t\t\t);"))
+            // Prevent the packager from starting during builds by replacing the script that starts it with a file that does nothing.
+            .then(TestUtil.copyFile.bind(undefined, 
+                path.join(TestConfig.templatePath, "ios", "launchPackager.command"),
+                path.join(projectDirectory, TestConfig.TestAppName, "node_modules", "react-native", "packager", "launchPackager.command"), true))
             // Copy the AppDelegate.m to the project
             .then(TestUtil.copyFile.bind(undefined,
                 path.join(TestConfig.templatePath, "ios", TestConfig.TestAppName, "AppDelegate.m"),