为什么Titanium构建过程如此之慢？

Question

我有一个2013 Retina MacBook pro,并对XCode的构建速度感到惊讶.我可以在大约2-3秒内在模拟器中构建并运行一个相当大的Objective-C应用程序.

在为iPhone制作和运行较小的Titanium App时,我想知道为什么需要大约15秒.在控制台中,构建过程非常快,但应用程序在"调用xcodebuild"上挂起大约10秒钟

$ titanium build -p ios
Titanium Command-Line Interface, CLI version 3.0.24, Titanium SDK version 3.0.2.v20130206164716
Copyright (c) 2012-2013, Appcelerator, Inc.  All Rights Reserved.

Please report bugs to http://jira.appcelerator.org/

[INFO]  Build type: development
[INFO]  Building for target: simulator
[INFO]  Building using iOS SDK: 6.1
[INFO]  Building for iOS iPhone Simulator: 6.1
[INFO]  Building for device family: iphone
[INFO]  Minimum iOS version: 4.3
[INFO]  Debugging disabled
[INFO]  Initiating prepare phase
[INFO]  Copying custom Info.plist from project directory
[INFO]  Forcing rebuild: custom Info.plist CFBundleIdentifier not equal to tiapp.xml <id>
[INFO]  No Titanium Modules required, continuing
[INFO]  Cleaning old build directory
[INFO]  Performing full rebuild
[INFO]  Copying Xcode iOS files
[INFO]  Creating Xcode project directory: .../build/iphone/MyProject.xcodeproj
[INFO]  Writing Xcode project data file: Titanium.xcodeproj/project.pbxproj
[INFO]  Writing Xcode project configuration: project.xcconfig
[INFO]  Writing Xcode module configuration: module.xcconfig
[INFO]  Creating symlinks for simulator build
[INFO]  Forcing rebuild: ApplicationDefaults.m has changed since last build
[INFO]  Writing properties to ApplicationDefaults.m
[INFO]  No module resources to copy
[INFO]  No CommonJS modules to copy
[INFO]  Invoking xcodebuild

有什么办法可以让它更快吗？

Answer 1

我在Appcelerator QA 问题上得到了解决问题的提示

日志中的这一行暗示了每次完整构建的原因：

Forcing rebuild: custom Info.plist CFBundleIdentifier not equal to tiapp.xml <id>

我的项目中有一个自定义 Info.plist，每次都会将其复制到 XCode 项目。我已将tiapp.xml <id>属性更改为相同CFBundleIdentifier，并且构建现在在不到 4 秒的时间内完成。