在使用 CocoaPods 管理类库时，配置完 Podfile 执行完 pod install，CocoaPods 配置好 Workspace后，会自动生成一个脚本

脚本名称格式为:

Pods-项目名-frameworks.sh

存在于 Pods/Targets Support Files/Pods-项目名 下

前提条件是开启 use_frameworks! 使用动态库依赖的方式，如果将其注释或去掉，基于静态库依赖，就不会产生此脚本

• 以 Countdown-background-recovery 为例

  .
  └──Pods
      └── Target Support Files
          └── Pods-RxTimerWithBackgroundRecovery
                └── Pods-RxTimerWithBackgroundRecovery-frameworks.sh

• Pods-RxTimerWithBackgroundRecovery-frameworks.sh

  完整脚本

    #!/bin/sh
    set -e
    set -u
    set -o pipefail
  
    function on_error {
    echo "$(realpath -mq "${0}"):$1: error: Unexpected failure"
    }
    trap 'on_error $LINENO' ERR
  
    if [ -z ${FRAMEWORKS_FOLDER_PATH+x} ]; then
    # If FRAMEWORKS_FOLDER_PATH is not set, then there's nowhere for us to copy
    # frameworks to, so exit 0 (signalling the script phase was successful).
    exit 0
    fi
  
    echo "mkdir -p ${CONFIGURATION_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
    mkdir -p "${CONFIGURATION_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
  
    COCOAPODS_PARALLEL_CODE_SIGN="${COCOAPODS_PARALLEL_CODE_SIGN:-false}"
    SWIFT_STDLIB_PATH="${DT_TOOLCHAIN_DIR}/usr/lib/swift/${PLATFORM_NAME}"
    BCSYMBOLMAP_DIR="BCSymbolMaps"
  
  
    # This protects against multiple targets copying the same framework dependency at the same time. The solution
    # was originally proposed here: https://lists.samba.org/archive/rsync/2008-February/020158.html
    RSYNC_PROTECT_TMP_FILES=(--filter "P .*.??????")
  
    # Copies and strips a vendored framework
    install_framework()
    {
    if [ -r "${BUILT_PRODUCTS_DIR}/$1" ]; then
        local source="${BUILT_PRODUCTS_DIR}/$1"
    elif [ -r "${BUILT_PRODUCTS_DIR}/$(basename "$1")" ]; then
        local source="${BUILT_PRODUCTS_DIR}/$(basename "$1")"
    elif [ -r "$1" ]; then
        local source="$1"
    fi
  
    local destination="${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}"
  
    if [ -L "${source}" ]; then
        echo "Symlinked..."
        source="$(readlink "${source}")"
    fi
  
    if [ -d "${source}/${BCSYMBOLMAP_DIR}" ]; then
        # Locate and install any .bcsymbolmaps if present, and remove them from the .framework before the framework is copied
        find "${source}/${BCSYMBOLMAP_DIR}" -name "*.bcsymbolmap"|while read f; do
        echo "Installing $f"
        install_bcsymbolmap "$f" "$destination"
        rm "$f"
        done
        rmdir "${source}/${BCSYMBOLMAP_DIR}"
    fi
  
    # Use filter instead of exclude so missing patterns don't throw errors.
    echo "rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --links --filter \"- CVS/\" --filter \"- .svn/\" --filter \"- .git/\" --filter \"- .hg/\" --filter \"- Headers\" --filter \"- PrivateHeaders\" --filter \"- Modules\" \"${source}\" \"${destination}\""
    rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --links --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "${source}" "${destination}"
  
    local basename
    basename="$(basename -s .framework "$1")"
    binary="${destination}/${basename}.framework/${basename}"
  
    if ! [ -r "$binary" ]; then
        binary="${destination}/${basename}"
    elif [ -L "${binary}" ]; then
        echo "Destination binary is symlinked..."
        dirname="$(dirname "${binary}")"
        binary="${dirname}/$(readlink "${binary}")"
    fi
  
    # Strip invalid architectures so "fat" simulator / device frameworks work on device
    if [[ "$(file "$binary")" == *"dynamically linked shared library"* ]]; then
        strip_invalid_archs "$binary"
    fi
  
    # Resign the code if required by the build settings to avoid unstable apps
    code_sign_if_enabled "${destination}/$(basename "$1")"
  
    # Embed linked Swift runtime libraries. No longer necessary as of Xcode 7.
    if [ "${XCODE_VERSION_MAJOR}" -lt 7 ]; then
        local swift_runtime_libs
        swift_runtime_libs=$(xcrun otool -LX "$binary" | grep --color=never @rpath/libswift | sed -E s/@rpath\\/\(.+dylib\).*/\\1/g | uniq -u)
        for lib in $swift_runtime_libs; do
        echo "rsync -auv \"${SWIFT_STDLIB_PATH}/${lib}\" \"${destination}\""
        rsync -auv "${SWIFT_STDLIB_PATH}/${lib}" "${destination}"
        code_sign_if_enabled "${destination}/${lib}"
        done
    fi
    }
    # Copies and strips a vendored dSYM
    install_dsym() {
    local source="$1"
    warn_missing_arch=${2:-true}
    if [ -r "$source" ]; then
        # Copy the dSYM into the targets temp dir.
        echo "rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --filter \"- CVS/\" --filter \"- .svn/\" --filter \"- .git/\" --filter \"- .hg/\" --filter \"- Headers\" --filter \"- PrivateHeaders\" --filter \"- Modules\" \"${source}\" \"${DERIVED_FILES_DIR}\""
        rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "${source}" "${DERIVED_FILES_DIR}"
  
        local basename
        basename="$(basename -s .dSYM "$source")"
        binary_name="$(ls "$source/Contents/Resources/DWARF")"
        binary="${DERIVED_FILES_DIR}/${basename}.dSYM/Contents/Resources/DWARF/${binary_name}"
  
        # Strip invalid architectures from the dSYM.
        if [[ "$(file "$binary")" == *"Mach-O "*"dSYM companion"* ]]; then
        strip_invalid_archs "$binary" "$warn_missing_arch"
        fi
        if [[ $STRIP_BINARY_RETVAL == 0 ]]; then
        # Move the stripped file into its final destination.
        echo "rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --links --filter \"- CVS/\" --filter \"- .svn/\" --filter \"- .git/\" --filter \"- .hg/\" --filter \"- Headers\" --filter \"- PrivateHeaders\" --filter \"- Modules\" \"${DERIVED_FILES_DIR}/${basename}.framework.dSYM\" \"${DWARF_DSYM_FOLDER_PATH}\""
        rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --links --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "${DERIVED_FILES_DIR}/${basename}.dSYM" "${DWARF_DSYM_FOLDER_PATH}"
        else
        # The dSYM was not stripped at all, in this case touch a fake folder so the input/output paths from Xcode do not reexecute this script because the file is missing.
        touch "${DWARF_DSYM_FOLDER_PATH}/${basename}.dSYM"
        fi
    fi
    }
  
    # Used as a return value for each invocation of `strip_invalid_archs` function.
    STRIP_BINARY_RETVAL=0
  
    # Strip invalid architectures
    strip_invalid_archs() {
    binary="$1"
    warn_missing_arch=${2:-true}
    # Get architectures for current target binary
    binary_archs="$(lipo -info "$binary" | rev | cut -d ':' -f1 | awk '{$1=$1;print}' | rev)"
    # Intersect them with the architectures we are building for
    intersected_archs="$(echo ${ARCHS[@]} ${binary_archs[@]} | tr ' ' '\n' | sort | uniq -d)"
    # If there are no archs supported by this binary then warn the user
    if [[ -z "$intersected_archs" ]]; then
        if [[ "$warn_missing_arch" == "true" ]]; then
        echo "warning: [CP] Vendored binary '$binary' contains architectures ($binary_archs) none of which match the current build architectures ($ARCHS)."
        fi
        STRIP_BINARY_RETVAL=1
        return
    fi
    stripped=""
    for arch in $binary_archs; do
        if ! [[ "${ARCHS}" == *"$arch"* ]]; then
        # Strip non-valid architectures in-place
        lipo -remove "$arch" -output "$binary" "$binary"
        stripped="$stripped $arch"
        fi
    done
    if [[ "$stripped" ]]; then
        echo "Stripped $binary of architectures:$stripped"
    fi
    STRIP_BINARY_RETVAL=0
    }
  
    # Copies the bcsymbolmap files of a vendored framework
    install_bcsymbolmap() {
        local bcsymbolmap_path="$1"
        local destination="${BUILT_PRODUCTS_DIR}"
        echo "rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "${bcsymbolmap_path}" "${destination}""
        rsync --delete -av "${RSYNC_PROTECT_TMP_FILES[@]}" --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "${bcsymbolmap_path}" "${destination}"
    }
  
    # Signs a framework with the provided identity
    code_sign_if_enabled() {
    if [ -n "${EXPANDED_CODE_SIGN_IDENTITY:-}" -a "${CODE_SIGNING_REQUIRED:-}" != "NO" -a "${CODE_SIGNING_ALLOWED}" != "NO" ]; then
        # Use the current code_sign_identity
        echo "Code Signing $1 with Identity ${EXPANDED_CODE_SIGN_IDENTITY_NAME}"
        local code_sign_cmd="/usr/bin/codesign --force --sign ${EXPANDED_CODE_SIGN_IDENTITY} ${OTHER_CODE_SIGN_FLAGS:-} --preserve-metadata=identifier,entitlements '$1'"
  
        if [ "${COCOAPODS_PARALLEL_CODE_SIGN}" == "true" ]; then
        code_sign_cmd="$code_sign_cmd &"
        fi
        echo "$code_sign_cmd"
        eval "$code_sign_cmd"
    fi
    }
  
    if [[ "$CONFIGURATION" == "Debug" ]]; then
    install_framework "${BUILT_PRODUCTS_DIR}/Differentiator/Differentiator.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/Hue/Hue.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/NSObject+Rx/NSObject_Rx.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxAlertViewable/RxAlertViewable.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxAnimated/RxAnimated.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxAppState/RxAppState.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxBinding/RxBinding.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxCocoa/RxCocoa.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxDataSources/RxDataSources.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxFlow/RxFlow.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxGesture/RxGesture.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxKeyboard/RxKeyboard.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxOptional/RxOptional.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxRelay/RxRelay.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxSwift/RxSwift.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxSwiftExt/RxSwiftExt.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxUIAlert/RxUIAlert.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxViewController/RxViewController.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SnapKit/SnapKit.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SwiftDate/SwiftDate.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SwifterSwift/SwifterSwift.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SwiftyJSON/SwiftyJSON.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/Then/Then.framework"
    fi
    if [[ "$CONFIGURATION" == "Release" ]]; then
    install_framework "${BUILT_PRODUCTS_DIR}/Differentiator/Differentiator.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/Hue/Hue.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/NSObject+Rx/NSObject_Rx.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxAlertViewable/RxAlertViewable.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxAnimated/RxAnimated.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxAppState/RxAppState.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxBinding/RxBinding.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxCocoa/RxCocoa.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxDataSources/RxDataSources.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxFlow/RxFlow.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxGesture/RxGesture.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxKeyboard/RxKeyboard.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxOptional/RxOptional.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxRelay/RxRelay.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxSwift/RxSwift.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxSwiftExt/RxSwiftExt.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxUIAlert/RxUIAlert.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/RxViewController/RxViewController.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SnapKit/SnapKit.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SwiftDate/SwiftDate.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SwifterSwift/SwifterSwift.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/SwiftyJSON/SwiftyJSON.framework"
    install_framework "${BUILT_PRODUCTS_DIR}/Then/Then.framework"
    fi
    if [ "${COCOAPODS_PARALLEL_CODE_SIGN}" == "true" ]; then
    wait
    fi
  

在项目 build phase - [CP] Embed Pods Frameworks 配置了这个脚本

同时基于 Xcode 的 New System Build, 在运行脚本时增加的输入(input file list)输出(output file list)列表

• input file list: ${PODS_ROOT}/Target Support Files/Pods-RxTimerWithBackgroundRecovery/Pods-RxTimerWithBackgroundRecovery-frameworks-${CONFIGURATION}-input-files.xcfilelist

  ${PODS_ROOT}/Target Support Files/Pods-SPMDemo/Pods-SPMDemo-frameworks.sh
  ${BUILT_PRODUCTS_DIR}/Alamofire/Alamofire.framework
  ${BUILT_PRODUCTS_DIR}/Differentiator/Differentiator.framework
  ${BUILT_PRODUCTS_DIR}/FloatingPanel/FloatingPanel.framework
  ${BUILT_PRODUCTS_DIR}/Moya/Moya.framework
  ${BUILT_PRODUCTS_DIR}/Moya-ObjectMapper/Moya_ObjectMapper.framework
  ${BUILT_PRODUCTS_DIR}/NSObject+Rx/NSObject_Rx.framework
  ${BUILT_PRODUCTS_DIR}/ObjectMapper/ObjectMapper.framework
  ${BUILT_PRODUCTS_DIR}/RxAnimated/RxAnimated.framework
  ${BUILT_PRODUCTS_DIR}/RxCocoa/RxCocoa.framework
  ${BUILT_PRODUCTS_DIR}/RxDataSources/RxDataSources.framework
  ${BUILT_PRODUCTS_DIR}/RxGesture/RxGesture.framework
  ${BUILT_PRODUCTS_DIR}/RxOptional/RxOptional.framework
  ${BUILT_PRODUCTS_DIR}/RxRelay/RxRelay.framework
  ${BUILT_PRODUCTS_DIR}/RxSwift/RxSwift.framework
  ${BUILT_PRODUCTS_DIR}/RxTheme/RxTheme.framework
  ${BUILT_PRODUCTS_DIR}/RxViewController/RxViewController.framework

• output file list: ${PODS_ROOT}/Target Support Files/Pods-RxTimerWithBackgroundRecovery/Pods-RxTimerWithBackgroundRecovery-frameworks-${CONFIGURATION}-output-files.xcfilelist

  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Alamofire.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Differentiator.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/FloatingPanel.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Moya.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/Moya_ObjectMapper.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/NSObject_Rx.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/ObjectMapper.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxAnimated.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxCocoa.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxDataSources.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxGesture.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxOptional.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxRelay.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxSwift.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxTheme.framework
  ${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/RxViewController.framework

  • 关于 BUILT_PRODUCTS_DIR、TARGET_BUILD_DIR、FRAMEWORKS_FOLDER_PATH 这三个环境变量都能在 Xcode help中了解到
  • PODS_ROOT 是在xcconfig中拼接的一个路径: PODS_ROOT = ${SRCROOT}/Pods
    总之这里就是拼接路径
    input 和 output 文件可以是单个文件形式，如果文件过多可以放到格式为 xcfilelist 的文件列表里

通过执行脚本: 在编译完成后，将生成的的动态库拷贝到 Frameworks 目录下, 在通过 CocoaPods 默认生成的 xcconfig中配置的 Run Path，就能拼接处完整的动态库路径，这样App 启动时 dyld 就能找到并加载动态库