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🎭 Convert Xcode projects to cmake CMakeLists.txt
Objective-C CMake Roff Shell
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mulle-xcode-settings.1

README.md

mulle-xcode-to-cmake

A little tool to convert Xcode projects to cmake CMakeLists.txt.

You can specify the target to export. If you don't specify a target, all targets are exported. It doesn't do a perfect job, but it's better than doing it all by hand. It can convert most targets, but it will do better with libraries and tools or frameworks.

This is useful for "one-shot" conversions. For continous conversions from Xcode to cmake, use mulle-sde.

Fork Build Status Master Version
Mulle kybernetiK Build Status Mulle kybernetiK tag Build Status

Install

MacOS : Apple

Use the homebrew package manager to install it, or build it yourself with Xcode:

brew install mulle-kybernetik/software/mulle-xcode-to-cmake

Build

MacOS / Linux / FreeBSD : mulle-objc

Get foundation-developer installed and then build mulle-xcode-to-cmake with:

mulle-sde clean cache
mulle-sde craft --release
mulle-sde run mulle-make install --prefix /usr/local/bin

Windows / Linux : GNUstep

It is also possible to build with GNUstep using cmake and the CMakeLists.txt file generated by mulle-xcode-to-cmake itself. After checking out the sources, change into the source directory and then:

mkdir build && cd build
cmake -Wno-dev ..
make
sudo make install

On Mac this should work without installing any additional dependencies. On other platforms it is suggested to install a recent clang version (5 or later) and you will need libobjc and the gnustep-base developer package, both from GNUstep (or another implementation of the ObjC runtime and the Foundation library).

On Windows, it is a bit tricky : please refer to this little guide here

Usage

usage: mulle-xcode-to-cmake [options] <commands> <file.xcodeproj>

Options:
   -2          : CMakeLists.txt includes CMakeSourcesAndHeaders.txt
   -a          : always prefix cmake variables with target
   -b          : suppress boilerplate definitions
   -d          : create static and shared library
   -f          : suppress Foundation (implicitly added)
   -i          : print global include_directories
   -l <lang>   : specify project language (c,c++,objc) (default: objc)
   -n          : suppress find_library trace
   -p          : suppress project
   -P <prefix> : prefix filepaths
   -r          : suppress reminder, what generated this file
   -s <suffix> : create standalone test library (framework/shared)
   -t <target> : target to export
   -u          : add UIKIt
   -w <name>   : add weight to name for sorting

Commands:
   export      : export CMakeLists.txt to stdout
   list        : list targets
   sexport     : export CMakeSourcesAndHeaders.txt to stdout

Environment:
   VERBOSE     : dump some info to stderr

Examples

List all project targets:

$ mulle-xcode-to-cmake list mulle-xcode-to-cmake.xcodeproj
mulle-xcode-to-cmake
mullepbx

Create "CMakeLists.txt" for target mullepbx leaving out some boilerplate template code. Invoking mulle-xcode-to-cmake -b export mulle-xcode-to-cmake.xcodeproj yields:

# Generated by mulle-xcode-to-cmake [2017-2-21 18:16:4]

project( mulle-xcode-to-cmake)

cmake_minimum_required (VERSION 3.4)


##
## mulle-xcode-to-cmake Files
##

set( MULLE_XCODE_TO_CMAKE_SOURCES
src/mulle-xcode-to-cmake/NSArray+Path.m
src/mulle-xcode-to-cmake/NSString+ExternalName.m
src/mulle-xcode-to-cmake/PBXHeadersBuildPhase+Export.m
src/mulle-xcode-to-cmake/PBXPathObject+HierarchyAndPaths.m
src/mulle-xcode-to-cmake/main.m
)

find_library( MULLEPBX_LIBRARY mullepbx)
message( STATUS "MULLEPBX_LIBRARY is ${MULLEPBX_LIBRARY}")

set( MULLE_XCODE_TO_CMAKE_STATIC_DEPENDENCIES
${MULLEPBX_LIBRARY}
)

find_library( FOUNDATION_LIBRARY Foundation)
message( STATUS "FOUNDATION_LIBRARY is ${FOUNDATION_LIBRARY}")

set( MULLE_XCODE_TO_CMAKE_DEPENDENCIES
${FOUNDATION_LIBRARY}
)


##
## mullepbx Files
##

set( MULLEPBX_PUBLIC_HEADERS
src/PBXReading/MullePBXUnarchiver.h
src/PBXReading/PBXObject.h
src/PBXWriting/MullePBXArchiver.h
src/PBXWriting/PBXObject+PBXEncoding.h
)

set( MULLEPBX_PROJECT_HEADERS
)

set( MULLEPBX_PRIVATE_HEADERS
src/PBXReading/NSObject+DecodeWithObjectStorage.h
src/PBXReading/NSString+KeyFromSetterSelector.h
src/PBXReading/NSString+LeadingDotExpansion.h
src/PBXReading/PBXProjectProxy.h
src/PBXWriting/MulleSortedKeyDictionary.h
)

set( MULLEPBX_SOURCES
src/PBXReading/MullePBXUnarchiver.m
src/PBXReading/NSObject+DecodeWithObjectStorage.m
src/PBXReading/NSString+KeyFromSetterSelector.m
src/PBXReading/NSString+LeadingDotExpansion.m
src/PBXReading/PBXObject.m
src/PBXReading/PBXProjectProxy.m
src/PBXWriting/MullePBXArchiver.m
src/PBXWriting/MulleSortedKeyDictionary.m
src/PBXWriting/PBXObject+PBXEncoding.m
)


##
## mulle-xcode-to-cmake
##

add_executable( mulle-xcode-to-cmake MACOSX_BUNDLE
${MULLE_XCODE_TO_CMAKE_SOURCES}
${MULLE_XCODE_TO_CMAKE_PUBLIC_HEADERS}
${MULLE_XCODE_TO_CMAKE_PROJECT_HEADERS}
${MULLE_XCODE_TO_CMAKE_PRIVATE_HEADERS}
${MULLE_XCODE_TO_CMAKE_RESOURCES}
)

target_include_directories( mulle-xcode-to-cmake
   PUBLIC
      src/PBXReading
      src/PBXWriting
)

add_dependencies( mulle-xcode-to-cmake mullepbx)

target_link_libraries( mulle-xcode-to-cmake
${MULLE_XCODE_TO_CMAKE_STATIC_DEPENDENCIES}
${MULLE_XCODE_TO_CMAKE_DEPENDENCIES}
)


##
## mullepbx
##

add_library( mullepbx STATIC
${MULLEPBX_SOURCES}
${MULLEPBX_PUBLIC_HEADERS}
${MULLEPBX_PROJECT_HEADERS}
${MULLEPBX_PRIVATE_HEADERS}
${MULLEPBX_RESOURCES}
)

target_include_directories( mullepbx
   PUBLIC
      src/PBXReading
      src/PBXWriting
)

install( TARGETS mullepbx DESTINATION "lib")
install( FILES ${MULLEPBX_PUBLIC_HEADERS} DESTINATION "include/mullepbx")

You have your own CMakeLists.txt template and just want to include() the list of sources as they change in the Xcode project:

mulle-xcode-to-cmake sexport mulle-xcode-to-cmake.xcodeproj yields:

##
## mulle-xcode-to-cmake Files
##

set( MULLE_XCODE_TO_CMAKE_SOURCES
src/mulle-xcode-to-cmake/NSArray+Path.m
src/mulle-xcode-to-cmake/NSString+ExternalName.m
src/mulle-xcode-to-cmake/PBXHeadersBuildPhase+Export.m
src/mulle-xcode-to-cmake/PBXPathObject+HierarchyAndPaths.m
src/mulle-xcode-to-cmake/main.m
)


##
## mullepbx Files
##

set( MULLEPBX_PUBLIC_HEADERS
src/PBXReading/MullePBXUnarchiver.h
src/PBXReading/PBXObject.h
src/PBXWriting/MullePBXArchiver.h
src/PBXWriting/PBXObject+PBXEncoding.h
)

set( MULLEPBX_SOURCES
src/PBXReading/MullePBXUnarchiver.m
src/PBXReading/NSObject+DecodeWithObjectStorage.m
src/PBXReading/NSString+KeyFromSetterSelector.m
src/PBXReading/NSString+LeadingDotExpansion.m
src/PBXReading/PBXObject.m
src/PBXReading/PBXProjectProxy.m
src/PBXWriting/MullePBXArchiver.m
src/PBXWriting/MulleSortedKeyDictionary.m
src/PBXWriting/PBXObject+PBXEncoding.m
)

History

This is basically a stripped down version of mulle_xcode_utility.

See the RELEASENOTES.md for what has changed.

Author

Coded by Nat!

Contributors

Contributors

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