模块化与Framework(17)：StaticFramework伪装Bundle

2017-07-17

伪装所需要的操作

Static Framework 需要伪装成Bundle主要是为了避免以下问题

Static Framework内的Mach-O无用
Static Framework Debug时会报错
Static Framework 简单删除Mach-O会引起无法Archive 和安装等问题

所需要

操作	作用
删除Static Framework Mach-O	因为Static Mach-O会进入动态库和App，原本Framework的.o的压缩包变得无用
取消代码签名	Bundle本身是不需要签名的
修改Plist	将Framework变身成Bundle
移除Frameworks目录	如果不移除Frameworks目录，会无法Install在设备上，签名验证失败

在完成伪装后需要通过 [NSBundle bundleWithURL:] 来进行加载，不能使用[self class]加载

Shell脚本主要指令

命令行	作用	执行
defaults	读写Plist文件，将Framework改Bundle	defaults write “$FRAMEWORK/Info.plist” CFBundlePackageType “BNDL” defaults delete “$FRAMEWORK/Info.plist” CFBundleExecutable
otool	查看Mach-O，判断是否为Static	otool -a “$FRAMEWORK_EXECUTABLE_PATH
head	选取第一行	head -n 1

其余的命令可以去参考文章模块化中的Shell

Example Shell

以下是个完整版的包含了

Static Framework 改 Bundle
删除无用的Framework 架构的脚本

APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"

find "$APP_PATH" -name '*.framework' -type d | while read -r FRAMEWORK
do
FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
BUNDLE_IN_ROOT="$APP_PATH/${FRAMEWORK_EXECUTABLE_NAME}.bundle"


if [[ -e "$FRAMEWORK_EXECUTABLE_PATH" ]]; then
  FRAMEWORK_MACH_O="$(otool -a "$FRAMEWORK_EXECUTABLE_PATH" | head -n 1)"
  FRAMEWORK_FAT_ARCH="$(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")"
else
  FRAMEWORK_MACH_O="NO EXIST"
  FRAMEWORK_FAT_ARCH="NO EXIST"
fi


echo "FRAMEWORK_EXECUTABLE_NAME is $FRAMEWORK_EXECUTABLE_NAME"
echo "FRAMEWORK_EXECUTABLE_PATH is $FRAMEWORK_EXECUTABLE_PATH"
echo "FRAMEWORK_MACH_O is $FRAMEWORK_MACH_O"
echo "FRAMEWORK_FAT_ARCH is $FRAMEWORK_FAT_ARCH"
echo "BUNDLE_IN_ROOT is $BUNDLE_IN_ROOT"


if [[ "$FRAMEWORK_MACH_O" =~ "Archive :" ]]; then
  echo "Rmove Static-Mach-O is $FRAMEWORK_EXECUTABLE_PATH"
  rm "$FRAMEWORK_EXECUTABLE_PATH"
  defaults write "$FRAMEWORK/Info.plist" CFBundlePackageType "BNDL"
  defaults delete "$FRAMEWORK/Info.plist" CFBundleExecutable
  if [[ -d "$BUNDLE_IN_ROOT" ]]; then
    rm -rf "$BUNDLE_IN_ROOT"
  fi
  mv -f "$FRAMEWORK" "$BUNDLE_IN_ROOT"
elif [[ "$FRAMEWORK_FAT_ARCH" =~ "Architectures in the fat file" ]]; then
  #statements
  EXTRACTED_ARCHS=()
  for ARCH in $ARCHS
  do
    echo "Extracting $ARCH from $FRAMEWORK_EXECUTABLE_NAME"
    lipo -extract "$ARCH" "$FRAMEWORK_EXECUTABLE_PATH" -o "$FRAMEWORK_EXECUTABLE_PATH-$ARCH"
    EXTRACTED_ARCHS+=("$FRAMEWORK_EXECUTABLE_PATH-$ARCH")
  done

  echo "Merging extracted architectures: ${ARCHS}"
  lipo -o "$FRAMEWORK_EXECUTABLE_PATH-merged" -create "${EXTRACTED_ARCHS[@]}"
  rm "${EXTRACTED_ARCHS[@]}"

  echo "Replacing original executable with thinned version"
  rm "$FRAMEWORK_EXECUTABLE_PATH"
  mv "$FRAMEWORK_EXECUTABLE_PATH-merged" "$FRAMEWORK_EXECUTABLE_PATH"
fi

done