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Add support for Apple framework builds (AcademySoftwareFoundation#2020)
This PR makes a few changes that have been derived from a corresponding PR to USD PixarAnimationStudios/OpenUSD#2969 The changes are: 1. Deprecates `MATERIALX_BUILD_IOS` in favor of using `CMAKE_SYSTEM_NAME`. This allows for better support for iPhone derived targets like visionOS. Earlier this would force it to iOS which can cause subtle issues when compiled against other SDKs. See https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling-for-ios-tvos-visionos-or-watchos 2. Changes `TARGET_OS_IOS` define to `TARGET_OS_IPHONE` which is more correct to support iPhone derivatives. See https://chaosinmotion.com/2021/08/02/things-to-remember-compiler-conditionals-for-macos-ios-etc/ . But the gist is `TARGET_OS_IOS` refers specifically to the modern iOS/iPadOS SDK, whereas `TARGET_OS_IPHONE` refers to all Apple SDKs that derived from the original iPhone. 3. Add support for building as a Framework. This creates a special directory structure that streamlines embedding of MaterialX within Apps on Apple platforms to just dragging the project into the app in Xcode. No other linker and compiler configuration is necessary. See Framework notes below.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| #!/bin/zsh | ||
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| # Creates an Apple framework for the given platform type | ||
| # documentation: https://developer.apple.com/documentation/bundleresources/placing_content_in_a_bundle | ||
| # https://developer.apple.com/library/archive/documentation/MacOSX/Conceptual/BPFrameworks/Concepts/FrameworkAnatomy.html | ||
| echo "⌛️ Creating MaterialX.framework ..." | ||
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| # Variables are substituted by CMake | ||
| CMAKE_INSTALL_PREFIX="@CMAKE_INSTALL_PREFIX@" | ||
| PROJECT_BINARY_DIR="@PROJECT_BINARY_DIR@" | ||
|
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| FRAMEWORK_NAME="MaterialX" | ||
| FRAMEWORK_DIR="${CMAKE_INSTALL_PREFIX}/frameworks/${FRAMEWORK_NAME}.framework" | ||
| FRAMEWORK_LIBRARIES_DIR="${FRAMEWORK_DIR}/Libraries" | ||
| FRAMEWORK_ROOT_LIBRARY_NAME="libMaterialX.@[email protected]" | ||
| EMBEDDED_BUILD=@__embedded_build@ | ||
| FRAMEWORK_RESOURCES_DIR="${FRAMEWORK_DIR}" | ||
| MATERIALX_SOURCE_LIBRARIES="${CMAKE_INSTALL_PREFIX}/libraries/" | ||
| BUNDLE_IDENTIFIER="org.aswf.materialx" | ||
| CODESIGN_ID="@CMAKE_XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY@" | ||
| OLD_RC_PATH="${CMAKE_INSTALL_PREFIX}/lib" | ||
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| function fix_linkage() { | ||
| readonly file=${1:?"A file path must be specified."} | ||
| readonly prepend="${FRAMEWORK_NAME}.framework/Libraries" | ||
| filename=$(basename ${file}) | ||
| # First, change the install name. This corresponds to LC_ID_DYLIB. | ||
| install_name_tool -id "@rpath/${prepend}/${filename}" ${file} | ||
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| parts=("${(@f)$(otool -l ${file})}") | ||
| for line in ${parts}; do | ||
| dylib_name="" | ||
| [[ $line =~ ' *name @rpath/(.*\.dylib)' ]] && dylib_name=$match[1] | ||
| if [ -n "${dylib_name}" ]; then | ||
| install_name_tool -change "@rpath/${dylib_name}" "@rpath/${prepend}/${dylib_name}" "${file}" | ||
| fi | ||
| if [[ $line == *"${OLD_RC_PATH}"* ]]; then | ||
| install_name_tool -delete_rpath ${OLD_RC_PATH} ${file} | ||
| fi | ||
| done | ||
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| codesign -f -s ${CODESIGN_ID} ${file} | ||
| } | ||
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| # Remove the existing directory if it exists | ||
| if [ -d ${FRAMEWORK_DIR} ]; then | ||
| echo "Removing existing framework"; | ||
| rm -Rf ${FRAMEWORK_DIR}; | ||
| fi | ||
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| # Create the parent directory | ||
| echo "Creating Framework Directory: ${FRAMEWORK_DIR}" | ||
| mkdir -p ${FRAMEWORK_DIR} | ||
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| if [ "$EMBEDDED_BUILD" = true ];then | ||
| FRAMEWORK_RESOURCES_DIR="${FRAMEWORK_DIR}/Resources" | ||
| FRAMEWORK_PLIST_LOCATION="${FRAMEWORK_DIR}/Info.plist" | ||
| FRAMEWORK_HEADERS_DIR="${FRAMEWORK_DIR}/Headers" | ||
| FRAMEWORK_LIB_PATH=""${FRAMEWORK_DIR}/${FRAMEWORK_NAME}"" | ||
| else | ||
| FRAMEWORK_RESOURCES_DIR="${FRAMEWORK_DIR}/Versions/A/Resources/" | ||
| FRAMEWORK_PLIST_LOCATION="${FRAMEWORK_DIR}/Versions/A/Resources/Info.plist" | ||
| FRAMEWORK_HEADERS_DIR="${FRAMEWORK_DIR}/Versions/A/Headers" | ||
| FRAMEWORK_LIB_PATH="${FRAMEWORK_DIR}/Versions/A/${FRAMEWORK_NAME}" | ||
| fi | ||
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| echo "Creating Resources Root: ${FRAMEWORK_RESOURCES_DIR}" | ||
| mkdir -p ${FRAMEWORK_RESOURCES_DIR} | ||
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| echo "Creating Headers Root: ${FRAMEWORK_HEADERS_DIR}" | ||
| mkdir -p ${FRAMEWORK_HEADERS_DIR} | ||
|
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| # Copy the plist over | ||
| echo "Copying files into ${FRAMEWORK_DIR}" | ||
| ditto "${PROJECT_BINARY_DIR}/Info.plist" "${FRAMEWORK_PLIST_LOCATION}" | ||
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| # Copy the primary directories over | ||
| ditto "${CMAKE_INSTALL_PREFIX}/include/" ${FRAMEWORK_HEADERS_DIR} | ||
| ditto "${CMAKE_INSTALL_PREFIX}/libraries/" "${FRAMEWORK_RESOURCES_DIR}/libraries" | ||
| ditto "${CMAKE_INSTALL_PREFIX}/resources" "${FRAMEWORK_RESOURCES_DIR}/render" | ||
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| cp "${CMAKE_INSTALL_PREFIX}/lib/${FRAMEWORK_ROOT_LIBRARY_NAME}" "${FRAMEWORK_LIB_PATH}" | ||
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| # Setup symlinks | ||
| if [ "$EMBEDDED_BUILD" = false ];then | ||
| (cd "${FRAMEWORK_DIR}/Versions" && ln -s "A" "Current") | ||
| (cd ${FRAMEWORK_DIR} && ln -s "Versions/Current/Resources" "Resources") | ||
| (cd ${FRAMEWORK_DIR} && ln -s "Versions/Current/Headers" "Headers") | ||
| (cd ${FRAMEWORK_DIR} && ln -s "Versions/Current/${FRAMEWORK_NAME}" ${FRAMEWORK_NAME}) | ||
| fi | ||
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| # Fix the linkage on the primary dylib | ||
| fix_linkage "${FRAMEWORK_DIR}/${FRAMEWORK_NAME}" | ||
| install_name_tool -id "@rpath/${FRAMEWORK_NAME}.framework/${FRAMEWORK_NAME}" "${FRAMEWORK_DIR}/${FRAMEWORK_NAME}" | ||
| install_name_tool -change "@rpath/${FRAMEWORK_NAME}.framework/Libraries/${FRAMEWORK_NAME}" "@rpath/${FRAMEWORK_NAME}.framework/${FRAMEWORK_NAME}" "${FRAMEWORK_DIR}/${FRAMEWORK_NAME}" | ||
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| # Frameworks require all includes to use the framework name as the prefix for automatic discovery | ||
| echo "Modifying headers..." | ||
| HEADER_SET="" | ||
| for i in $(cd $FRAMEWORK_HEADERS_DIR && ls -d */ | cut -f1 -d'/');do | ||
| HEADER_SET+="${i}|" | ||
| done; | ||
| # Sed on macOS is POSIX compliant and so uses different args than GNU | ||
| # Things to be aware of are [[:<:]] and [[:>:]] are for word boundaries and spaces are explicit literals | ||
| INCLUDE_PATTERN="^# *include [\"|<]([[:<:]](${HEADER_SET::-1})[[:>:]].*)[\"|>].*$" | ||
| find ${FRAMEWORK_HEADERS_DIR} -type f -name "*.h*" -print0 | xargs -0 sed -i "" -E "s,${INCLUDE_PATTERN},#include <${FRAMEWORK_NAME}/\1>,g" | ||
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| # Sign the final framework | ||
| echo "Codesigning the framework..." | ||
| set -e | ||
| codesign --force --sign ${CODESIGN_ID} --generate-entitlement-der --identifier ${BUNDLE_IDENTIFIER} --verbose ${FRAMEWORK_DIR} | ||
|
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| echo "✅ Finished creating framework at ${FRAMEWORK_DIR}" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,24 @@ | ||
| <?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>CFBundleDevelopmentRegion</key> | ||
| <string>en</string> | ||
| <key>CFBundleExecutable</key> | ||
| <string>MaterialX</string> | ||
| <key>CFBundleIdentifier</key> | ||
| <string>org.aswf.materialx</string> | ||
| <key>CFBundleInfoDictionaryVersion</key> | ||
| <string>6.0</string> | ||
| <key>CFBundleName</key> | ||
| <string>MaterialX</string> | ||
| <key>CFBundlePackageType</key> | ||
| <string>FMWK</string> | ||
| <key>CFBundleShortVersionString</key> | ||
| <string>@MATERIALX_LIBRARY_VERSION@</string> | ||
| <key>CFBundleVersion</key> | ||
| <string>@CFBUNDLEVERSION@</string> | ||
| <key>CSResourcesFileMapped</key> | ||
| <true /> | ||
| </dict> | ||
| </plist> |
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