Merge pull request #67 from matrix-org/cmake

CMake support

CMakeLists.txt

+cmake_minimum_required(VERSION 3.1)
+
+project(olm VERSION 2.3.0 LANGUAGES CXX C)
+
+option(OLM_TESTS "Build tests" ON)
+
+add_definitions(-DOLMLIB_VERSION_MAJOR=${PROJECT_VERSION_MAJOR})
+add_definitions(-DOLMLIB_VERSION_MINOR=${PROJECT_VERSION_MINOR})
+add_definitions(-DOLMLIB_VERSION_PATCH=${PROJECT_VERSION_PATCH})
+
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_C_STANDARD 99)
+set(CMAKE_C_STANDARD_REQUIRED ON)
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
+
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE Release)
+endif()
+
+add_library(olm
+    src/account.cpp
+    src/base64.cpp
+    src/cipher.cpp
+    src/crypto.cpp
+    src/memory.cpp
+    src/message.cpp
+    src/pickle.cpp
+    src/ratchet.cpp
+    src/session.cpp
+    src/utility.cpp
+    src/pk.cpp
+
+    src/ed25519.c
+    src/error.c
+    src/inbound_group_session.c
+    src/megolm.c
+    src/olm.cpp
+    src/outbound_group_session.c
+    src/pickle_encoding.c
+
+    lib/crypto-algorithms/aes.c
+    lib/crypto-algorithms/sha256.c
+    lib/curve25519-donna/curve25519-donna.c)
+add_library(Olm::Olm ALIAS olm)
+
+target_include_directories(olm
+    PUBLIC
+        $<BUILD_INTERFACE:${CMAKE_SOURCE_DIR}/include>
+        $<INSTALL_INTERFACE:include>
+    PRIVATE
+        ${CMAKE_CURRENT_SOURCE_DIR}/lib)
+
+set_target_properties(olm PROPERTIES
+   SOVERSION ${PROJECT_VERSION_MAJOR}
+   VERSION ${PROJECT_VERSION})
+
+set_target_properties(olm PROPERTIES
+    ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}
+    LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}
+    RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR})
+
+#
+# Installation
+#
+include(GNUInstallDirs)
+set(INSTALL_CONFIGDIR ${CMAKE_INSTALL_LIBDIR}/cmake/Olm)
+install(TARGETS olm
+    EXPORT olm-targets
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+# The exported target will be named Olm.
+set_target_properties(olm PROPERTIES EXPORT_NAME Olm)
+install(FILES
+    ${CMAKE_SOURCE_DIR}/include/olm/olm.h
+    ${CMAKE_SOURCE_DIR}/include/olm/outbound_group_session.h
+    ${CMAKE_SOURCE_DIR}/include/olm/inbound_group_session.h
+    ${CMAKE_SOURCE_DIR}/include/olm/pk.h
+    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/olm)
+
+# Export the targets to a script.
+install(EXPORT olm-targets
+  FILE OlmTargets.cmake
+  NAMESPACE Olm::
+  DESTINATION ${INSTALL_CONFIGDIR})
+
+# Create a ConfigVersion.cmake file.
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+    ${CMAKE_CURRENT_BINARY_DIR}/OlmConfigVersion.cmake
+    VERSION ${PROJECT_VERSION}
+    COMPATIBILITY SameMajorVersion)
+
+configure_package_config_file(
+    ${CMAKE_CURRENT_LIST_DIR}/cmake/OlmConfig.cmake.in
+    ${CMAKE_CURRENT_BINARY_DIR}/OlmConfig.cmake
+    INSTALL_DESTINATION ${INSTALL_CONFIGDIR})
+
+#Install the config & configversion.
+install(FILES
+    ${CMAKE_CURRENT_BINARY_DIR}/OlmConfig.cmake
+    ${CMAKE_CURRENT_BINARY_DIR}/OlmConfigVersion.cmake
+    DESTINATION ${INSTALL_CONFIGDIR})
+
+# Register package in user's package registry
+export(EXPORT olm-targets
+    FILE ${CMAKE_CURRENT_BINARY_DIR}/OlmTargets.cmake
+    NAMESPACE Olm::)
+export(PACKAGE Olm)
+
+if (OLM_TESTS)
+   add_subdirectory(tests)
+endif()

README.rst

@@ -58,9 +58,10 @@ To build olm as a static library (which still needs libstdc++ dynamically) run:
 Release process
 ---------------
 
-First: bump version numbers in ``common.mk``, ``javascript/package.json``,
-``OLMKit.podspec``, and ``android/olm-sdk/build.gradle`` (``versionCode``,
-``versionName`` and ``version``).
+First: bump version numbers in ``common.mk``, ``CMakeLists.txt``,
+``javascript/package.json``, ``OLMKit.podspec``, and
+``android/olm-sdk/build.gradle`` (``versionCode``, ``versionName`` and
+``version``).
 
 Also, ensure the changelog is up to date, and that everyting is committed to
 git.

cmake/OlmConfig.cmake.in

+get_filename_component(Olm_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
+include(CMakeFindDependencyMacro)
+
+list(APPEND CMAKE_MODULE_PATH ${Olm_CMAKE_DIR})
+list(REMOVE_AT CMAKE_MODULE_PATH -1)
+
+if(NOT TARGET Olm::olm)
+  include("${Olm_CMAKE_DIR}/OlmTargets.cmake")
+endif()
+
+set(Olm_LIBRARIES Olm::olm)

tests/CMakeLists.txt

+enable_testing()
+
+foreach(test IN ITEMS
+    test_base64
+    test_crypto
+    test_group_session
+    test_list
+    test_megolm
+    test_message
+    test_olm
+    test_olm_decrypt
+    test_olm_sha256
+    test_olm_signature
+    test_olm_using_malloc
+    test_ratchet
+    test_session
+    test_pk
+    )
+add_executable(${test} ${test}.cpp)
+target_include_directories(${test} PRIVATE include)
+target_link_libraries(${test} Olm::Olm)
+endforeach(test)
+
+add_test(Base64 test_base64)
+add_test(Crypto test_crypto)
+add_test(GroupSession test_group_session)
+add_test(List test_list)
+add_test(Megolm test_megolm)
+add_test(Message test_message)
+add_test(Olm test_olm)
+add_test(OlmDecrypt test_olm_decrypt)
+add_test(OlmSha256 test_olm_sha256)
+add_test(OlmSignature test_olm_signature)
+add_test(OlmUsingMalloc test_olm_using_malloc)
+add_test(Ratchet test_ratchet)
+add_test(Session test_session)
+add_test(PublicKey test_session)