Xcode脚本打.a包

1. 包大小优化
   打包的时候，注意Build是Debug还是Release环境。
   在Build Settings设置

• 修改Deployment相关设置，根据Debug还是Release环境设置。
  1)、Deployment Postprocessing：设为YES，这样RELEASE模式下就可以去除符号缩减app的大小（默认NO）
  2)、Strip Debug Symbols During Copy：DEBUG下设为NO，RELEASE下设为YES；（默认NO）
• 修改Optimization Level
Optimization Level，设置Debug为Fastest，Smalest，Release为Fastest，Smalest

2. 生成包
   点击左侧你的项目，在右边的TARGETS下面，新建一个target，然后切换到Build Phases - Run Script中，如果没Run Script，在左上角的+，添加New Run Script Phases，然后加入下面打包脚本，可以打钩Show environment variable in build log

• 生成通用包

#生成通用包
UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal
LIB_NAME="libTest"
LIB_OUTPUT_NAME="libTest" #导出的包名称

#生成真机：注意要打包的target名称要对应
xcodebuild -target libTest ONLY_ACTIVE_ARCH=NO -configuration ${CONFIGURATION} -sdk iphoneos  
VALID_ARCHS='armv7 armv7s arm64' ARCHS='armv7 armv7s arm64' BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}"

#生成模拟器：注意要打包的target名称要对应
xcodebuild -target libTest -configuration ${CONFIGURATION} -sdk iphonesimulator 
ARCHS='i386 x86_64' VALID_ARCHS='i386 x86_64' BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}"

mkdir -p "${UNIVERSAL_OUTPUTFOLDER}"

#合并包
lipo -create -output "${UNIVERSAL_OUTPUTFOLDER}/${LIB_NAME}.a" "${BUILD_DIR}/${CONFIGURATION}-iphoneos/${LIB_NAME}.a" "${BUILD_DIR}/${CONFIGURATION}-iphonesimulator/${LIB_NAME}.a"

cd "${PROJECT_DIR}"

cd ..

#拷贝整个目录到新的保存位置
cp -R "${UNIVERSAL_OUTPUTFOLDER}/${LIB_NAME}.a" "YourFileName/lib/${LIB_NAME}.a"

• 生成真机包(从生成通用包抽取)

#生成真机包
UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal
LIB_NAME="libTest"
LIB_OUTPUT_NAME="libTest_os" #导出的包名称

#生成真机：注意要打包的target名称要对应
xcodebuild -target libTest ONLY_ACTIVE_ARCH=NO -configuration ${CONFIGURATION} -sdk iphoneos  VALID_ARCHS='armv7 armv7s arm64' ARCHS='armv7 armv7s arm64' BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}"

mkdir -p "${UNIVERSAL_OUTPUTFOLDER}"

lipo -create -output "${UNIVERSAL_OUTPUTFOLDER}/${LIB_NAME}.a" "${BUILD_DIR}/${CONFIGURATION}-iphoneos/${LIB_NAME}.a"

cd "${PROJECT_DIR}"

cd ..

#拷贝整个目录到新的保存位置
cp -R "${UNIVERSAL_OUTPUTFOLDER}/${LIB_NAME}.a" "YourFileName/lib/${LIB_OUTPUT_NAME}.a"

• 生成模拟器包(从生成通用包抽取)

#生成模拟器包
UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal
LIB_NAME="libTest"
LIB_OUTPUT_NAME="libTest_simulator" #导出的包名称

#生成模拟器：注意要打包的target名称要对应
xcodebuild -target libTest -configuration ${CONFIGURATION} -sdk iphonesimulator ARCHS='i386 x86_64' VALID_ARCHS='i386 x86_64' BUILD_DIR="${BUILD_DIR}" BUILD_ROOT="${BUILD_ROOT}"

mkdir -p "${UNIVERSAL_OUTPUTFOLDER}"

lipo -create -output "${UNIVERSAL_OUTPUTFOLDER}/${LIB_NAME}.a" "${BUILD_DIR}/${CONFIGURATION}-iphonesimulator/${LIB_NAME}.a"

cd "${PROJECT_DIR}"

cd ..

#拷贝整个目录到新的保存位置
cp -R "${UNIVERSAL_OUTPUTFOLDER}/${LIB_NAME}.a" "YourFileName/lib/${LIB_OUTPUT_NAME}.a"

3. 处理包

cd到libTest.a的目录位置

• 查看.a包里面有多少archive

$ file libTest.a
libPAIMLib.a: Mach-O universal binary with 5 architectures: [arm_v7:current ar archive] [arm64]
libTest.a (for architecture armv7): current ar archive
libTest.a (for architecture armv7s):    current ar archive
libTest.a (for architecture i386):  current ar archive
libTest.a (for architecture x86_64):    current ar archive
libTest.a (for architecture arm64): current ar archive

• 查看.a包支持的环境

$ lipo -info libTest.a 
Architectures in the fat file: libTest.a are: armv7 armv7s i386 x86_64 arm64

• 要是想不要包里面的某个archive(貌似一次只能删除一个)，如下删除掉模拟器

$ lipo libTest.a -remove i386 -output libTest.a
$ lipo libTest.a -remove x86_64 -output libTest.a

• 取出包里面单个archive，然后可以用lipo -create合并想要的

$ lipo -thin armv7 libTest.a -output libTest_armv7.a
$ lipo -thin armv7s libTest.a -output libTest_armv7s.a
$ lipo -thin arm64 libTest.a -output libTest_arm64.a
$ lipo -create libTest_armv7.a libTest_armv7s.a libTest_arm64 -output libTest_universal.a.a