iOS framework xcodebuild 构建脚本

场景

framework的开发者开发完成后，通常需要构建真机、模拟器版本，然后合并架构，再分发给framework的调用者调用。与手工构建相比，自动化的构建脚本让这个过程更加高效。

前序知识

• shell

  教程：Shell 基础教程

  用途：构建脚本即为Shell语法编写的脚本程序，需要掌握Shell基础语法。

• PlistBuddy

  简介：PlistBuddy是Mac系统提供的一个用于操作plist文件的命令行工具，路径：

  /usr/libexec/PlistBuddy
  

  用途：修改Xcode工程中info.plist，设置CFBundleVersion、CFBundleShortVersionString版本信息。

  语法：

  /usr/libexec/PlistBuddy -c 'Set :$key string "value" ' info.plist
  

• xcodebuild

  简介：xcodebuild是Xcode提供的一套命令行构建工具，它能构建Xcode projcect下的一个或者多个targets ，也能构建一个workspace或Xcode project下的scheme。

  用途：编译工程

  语法：

  # project target
  xcodebuild -project <your project>.xcodeproj \
  -target <your target>   \
  -configuration Release  \
  -sdk iPhoneOS
  
  # workspace scheme
  xcodebuild -workspace <your workspace>.xcworkspace \
  -scheme <your scheme>   \
  -configuration Release  \
  -sdk iPhoneOS
  

• lipo

  简介：lipo是一个创建或操作universal File的工具, 可以查看架构信息, 提取特定架构，整合和拆分库文件。

  用途：合并真机、模拟器版本的framework

  语法

  lipo -create libA.a libB.a -output libC.a
  

• zip

  简介：一个压缩工具

  用途：压缩framework

  语法：

  zip -r -m -o a.zip a 
  

构建脚本

基于project target

#!/bin/sh

#参数
project_name="<your project name>"
framework_name=${project_name}
build_dir="build"
out_dir="out"

# 清除缓存
function build_clean {
    echo "======build_clean======"

    rm -rf ${build_dir}
    rm -rf ${out_dir}
}

# 配置
function build_config {
    echo "======build_config======"

    # build版本号：日期
    build_version=`date +%y%m%d%H%M%S` 
    /usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${build_version}" ./${project_name}/info.plist

    # build版本号：自增
    # build_version=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "./${project_name}/info.plist" )

    # build_version=$(($build_version + 1))
    # /usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${build_version}" ./${project_name}/info.plist
}

# 编译
function build_framework {
   echo "======build_framework======"

    # 若支持bitCode，需加参数：-fembed-bitcode
    xcodebuild -project ${project_name}.xcodeproj -sdk iphoneos -configuration "Release" OTHER_CFLAGS="-fembed-bitcode" BUILD_DIR="./${build_dir}" build || exit 1

    xcodebuild -project ${project_name}.xcodeproj -sdk iphonesimulator -configuration "Release" OTHER_CFLAGS="-fembed-bitcode" BUILD_DIR="./${build_dir}" build || exit 1
}

# 合并
function build_fat_framework {
    echo "======build_fat_framework======"
    mkdir -p ${out_dir}

    cp -R ${build_dir}/Release-iphoneos/${framework_name}.framework ${out_dir}/
    lipo -create ${build_dir}/Release-iphonesimulator/${framework_name}.framework/${framework_name} ${build_dir}/Release-iphoneos/${framework_name}.framework/${framework_name} -output ${out_dir}/${framework_name}.framework/${framework_name} || exit 1
}

# 压缩
function build_zip {
    echo "======build_zip======"
    cd ${out_dir}
    time=`date +%y%m%d%H%M%S`
    name=${framework_name}_${time}.zip
    zip -r -m -o ${framework_name}.framework.zip ${framework_name}.framework || exit 1
}

# 调用
build_clean
build_config
build_framework
build_fat_framework
build_zip

基于workspace scheme

#!/bin/sh

# 参数
workspace="<your workspace>"
scheme="<your scheme>"
project_name=${scheme}
framework_name=${scheme}
build_dir="build"
out_dir="out"

# 清除缓存
function build_clean {
    echo "======build_clean======"

    rm -rf ${build_dir}
    rm -rf ${out_dir}
}

# 配置
function build_config {
    echo "======build_config======"

    # build版本号：日期
    build_version=`date +%y%m%d%H%M%S` 
    /usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${build_version}" ./${project_name}/${framework_name}/info.plist

    # build版本号：自增
    # build_version=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "./${project_name}/${framework_name}/info.plist" )

    # build_version=$(($build_version + 1))
    # /usr/libexec/PlistBuddy -c "Set :CFBundleVersion ${build_version}" ./${project_name}/${framework_name}/info.plist 
}

# 编译
function build_framework {
    echo "======build_framework======"

    #若支持bitCode，需加参数：-fembed-bitcode
    xcodebuild -workspace ${workspace}.xcworkspace -scheme ${scheme} -sdk iphoneos -configuration "Release" OTHER_CFLAGS="-fembed-bitcode" BUILD_DIR="../${build_dir}" build || exit 1

    xcodebuild -workspace ${workspace}.xcworkspace -scheme ${scheme} -sdk iphonesimulator -configuration "Release" OTHER_CFLAGS="-fembed-bitcode" BUILD_DIR="../${build_dir}" build || exit 1
}

# 合并
function build_fat_framework {
    echo "======build_fat_framework======"

    mkdir -p ${out_dir}/

    cp -R ${build_dir}/Release-iphoneos/${framework_name}.framework ${out_dir}/
	lipo -create ${build_dir}/Release-iphonesimulator/${framework_name}.framework/${framework_name} ${build_dir}/Release-iphoneos/${framework_name}.framework/${framework_name} -output ${out_dir}/${framework_name}.framework/${framework_name} || exit 1
}

# 压缩
function build_zip {
    echo "======build_zip======"

    cd ${out_dir}
    time=`date +%y%m%d%H%M%S`
    name=${framework_name}_${time}.zip
    zip -r -m -o ${framework_name}.framework.zip ${framework_name}.framework || exit 1
}

# 调用
build_clean
build_config
build_framework
build_fat_framework
build_zip

总结

• framework构建脚本主要使用了PlistBuddy、xcodebuild、lipo、zip等命令行工具，需要熟悉各个命令的基本用法，也需要掌握Shell基础语法，以便根据自身使用场景对脚本进行定制修改；

• 关于bitcode：Enable Bitcode 设置为 YES，进行Archive时，bitcode会被嵌入到链接后的二进制文件中。进行其他类型的build(非Archive)时，编译器只会检查是否满足开启bitcode的条件，但并不会真正生成bitcode，需要显式增加参数-fembed-bitcode。