这几天折腾了jenkins对iOS swift项目的持续集成，碰到了很多问题，记录下吧

1. 缺少scheme

xcodebuild: error: The project named “Foo” does not contain a scheme named “Bar”. The “-list” option can be used to find the names of the schemes in the project.

解决办法：
The root cause is that the default behavior of Schemes is to keep schemes ‘private’ until they are specifically marked as shared. In the case of a command-line initiated build, the Xcode UI never runs and the xcoderun tool doesn’t have its own cache of Schemes to work with.
To your schema be visible for command-line build you must mark it as a shared scheme.

Choose Scheme > Manage Schemes (from the Product Menu).
Ensure the ‘Shared’ box is checked for that scheme
A new .xcscheme file has been created in your project at
WorkspaceName.xcworkspace/xcshareddata/xcschemes.
Commit this file to your repository

2. Error: User interaction is not allowed.

运行下面的命令可解决

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$ security unlock-keychain -p  ~/Library/Keychains/login.keychain
$ security show-keychain-info ~/Library/Keychains/login.keychain
Keychain "/Users/XXX/Library/Keychains/login.keychain" no-timeout

3. Xcode 7后导出IPA命令发生变化

以前我是通过下面的命令打包的，但现在的swift项目这样导出的包在iPhone安装后直接闪退

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xcodebuild -target ${TARGET_NAME} -configuration ${BUILD_CONFIGURATION} -sdk phones build
xcrun -sdk iphoneos PackageApplication -v ${APP_NAME} -o ${IPA_PATH}

Xcode7之后取消了原来的-exportFormat，而是使用exportOptionsPlist 来取代，具体的使用方法可以在Terminal打xcodebuild –help查看。
我们需要自己创建一个plist作为Export Options，只要有这个配置文件，那我们在使用这个命令的时候就能打出跟手动用Xcode Archive之后export出的ipa一样了。

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
  <key>teamID</key>
  <string>XXXXXXX</string>
  <key>method</key>
  <string>enterprise</string>
  <key>compileBitcode</key>
  <false/>
  <key>uploadSymbols</key>
  <false/>
</dict>
</plist>

4. 最新的xcodebuild 导出ipa命令

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xcodebuild -target XXXX -configuration Release build
xcodebuild archive -project {xcodeproj} -scheme '{scheme}' -sdk iphoneos  -archivePath {archive_path}
xcodebuild -exportArchive -archivePath  {archive_path} -exportPath {export_path}  -exportOptionsPlist {export_plist_path}

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