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Non-intrusive integration with CMake (conan-io#2875)
* mac passing * Fixed runtime windows * Tested priority * fixed zlib find test * Fixed test and added interface_compile_definitions * Removed priority of the cmake install folder from the install_folder * Fixed test, added _LIBS var * PENDING WORK TO MAKE IT TRANSITIVE * Transitive targets * Removed msg * Force CI * Automatic module path * Add new priorize test * Fixed test * Replace * Fixed win
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,99 @@ | ||
| from conans.client.generators.cmake import DepsCppCmake | ||
| from conans.model import Generator | ||
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| generic_find_package_template = """ | ||
| message(STATUS "Conan: Using autogenerated Find{name}.cmake") | ||
| # Global approach | ||
| SET({name}_FOUND 1) | ||
| SET({name}_INCLUDE_DIRS {deps.include_paths}) | ||
| SET({name}_INCLUDES {deps.include_paths}) | ||
| SET({name}_DEFINITIONS {deps.defines}) | ||
| SET({name}_LIBRARIES "") # Will be filled later | ||
| SET({name}_LIBRARIES_TARGETS "") # Will be filled later, if CMake 3 | ||
| SET({name}_LIBS "") # Same as {name}_LIBRARIES | ||
| mark_as_advanced({name}_FOUND {name}_INCLUDE_DIRS {name}_INCLUDES | ||
| {name}_DEFINITIONS {name}_LIBRARIES {name}_LIBS) | ||
| # Find the real .lib/.a and add them to {name}_LIBS and {name}_LIBRARY_LIST | ||
| SET({name}_LIBRARY_LIST {deps.libs}) | ||
| SET({name}_LIB_DIRS {deps.lib_paths}) | ||
| foreach(_LIBRARY_NAME ${{{name}_LIBRARY_LIST}}) | ||
| unset(CONAN_FOUND_LIBRARY CACHE) | ||
| find_library(CONAN_FOUND_LIBRARY NAME ${{_LIBRARY_NAME}} PATHS ${{{name}_LIB_DIRS}} | ||
| NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH) | ||
| if(CONAN_FOUND_LIBRARY) | ||
| if(${{CMAKE_VERSION}} VERSION_LESS "3.0") | ||
| list(APPEND {name}_LIBRARIES ${{CONAN_FOUND_LIBRARY}}) | ||
| else() # Create a micro-target for each lib/a found | ||
| set(_LIB_NAME CONAN_LIB::{name}_${{_LIBRARY_NAME}}) | ||
| add_library(${{_LIB_NAME}} UNKNOWN IMPORTED) | ||
| set_target_properties(${{_LIB_NAME}} PROPERTIES IMPORTED_LOCATION ${{CONAN_FOUND_LIBRARY}}) | ||
| list(APPEND {name}_LIBRARIES_TARGETS ${{_LIB_NAME}}) | ||
| endif() | ||
| message(STATUS "Found: ${{CONAN_FOUND_LIBRARY}}") | ||
| else() | ||
| message(STATUS "Library ${{_LIBRARY_NAME}} not found in package, might be system one") | ||
| endif() | ||
| endforeach() | ||
| set({name}_LIBS ${{{name}_LIBRARIES}}) | ||
| if(NOT ${{CMAKE_VERSION}} VERSION_LESS "3.0") | ||
| # Target approach | ||
| if(NOT TARGET {name}::{name}) | ||
| add_library({name}::{name} INTERFACE IMPORTED) | ||
| if({name}_INCLUDE_DIRS) | ||
| set_target_properties({name}::{name} PROPERTIES | ||
| INTERFACE_INCLUDE_DIRECTORIES "${{{name}_INCLUDE_DIRS}}") | ||
| endif() | ||
| set_property(TARGET {name}::{name} PROPERTY INTERFACE_LINK_LIBRARIES ${{{name}_LIBRARIES_TARGETS}}) | ||
| set_property(TARGET {name}::{name} PROPERTY INTERFACE_COMPILE_DEFINITIONS {deps.defines}) | ||
| endif() | ||
| {find_dependencies} | ||
| endif() | ||
| """ | ||
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| class CMakeFindPackageGenerator(Generator): | ||
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| @property | ||
| def filename(self): | ||
| pass | ||
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| @property | ||
| def content(self): | ||
| ret = {} | ||
| for depname, cpp_info in self.deps_build_info.dependencies: | ||
| ret["Find%s.cmake" % depname] = self._single_find_package(depname, cpp_info) | ||
| return ret | ||
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| @staticmethod | ||
| def _single_find_package(name, cpp_info): | ||
| deps = DepsCppCmake(cpp_info) | ||
| lines = [] | ||
| if cpp_info.public_deps: | ||
| lines = CMakeFindPackageGenerator._transitive_lines(name, cpp_info) | ||
| tmp = generic_find_package_template.format(name=name, deps=deps, | ||
| find_dependencies="\n".join(lines)) | ||
| return tmp | ||
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| @staticmethod | ||
| def _transitive_lines(name, cpp_info): | ||
| lines = ["# Library dependencies", "include(CMakeFindDependencyMacro)"] | ||
| for dep in cpp_info.public_deps: | ||
| def property_lines(prop): | ||
| lib_t = "%s::%s" % (name, name) | ||
| dep_t = "%s::%s" % (dep, dep) | ||
| return ["get_target_property(tmp %s %s)" % (dep_t, prop), | ||
| "if(tmp)", | ||
| " set_property(TARGET %s APPEND PROPERTY %s ${tmp})" % (lib_t, prop), | ||
| ' message("${tmp}")', | ||
| 'endif()'] | ||
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| lines.append("find_dependency(%s REQUIRED)" % dep) | ||
| lines.extend(property_lines("INTERFACE_LINK_LIBRARIES")) | ||
| lines.extend(property_lines("INTERFACE_COMPILE_DEFINITIONS")) | ||
| lines.extend(property_lines("INTERFACE_INCLUDE_DIRECTORIES")) | ||
| return lines |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| from conans.client.generators.cmake import DepsCppCmake | ||
| from conans.model import Generator | ||
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| class CMakePathsGenerator(Generator): | ||
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| @property | ||
| def filename(self): | ||
| return "conan_paths.cmake" | ||
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| @property | ||
| def content(self): | ||
| deps = DepsCppCmake(self.deps_build_info) | ||
| # We want to prioritize the FindXXX.cmake files: | ||
| # 1. First the files found in the packages | ||
| # 2. The previously set (by default CMAKE_MODULE_PATH is empty) | ||
| # 3. The "install_folder" ones, in case there is no FindXXX.cmake, try with the install dir | ||
| # if the user used the "cmake_find_package" will find the auto-generated | ||
| # 4. The CMake installation dir/Modules ones. | ||
| return """set(CMAKE_MODULE_PATH {deps.build_paths} ${{CMAKE_MODULE_PATH}} ${{CMAKE_CURRENT_LIST_DIR}}) | ||
| set(CMAKE_PREFIX_PATH {deps.build_paths} ${{CMAKE_PREFIX_PATH}} ${{CMAKE_CURRENT_LIST_DIR}}) | ||
| """.format(deps=deps) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| import unittest | ||
| from conans.test.utils.cpp_test_files import cpp_hello_conan_files | ||
| from conans.test.utils.tools import TestClient | ||
| from nose.plugins.attrib import attr | ||
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| @attr('slow') | ||
| class CMakeFindPathGeneratorTest(unittest.TestCase): | ||
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| def cmake_find_package_test(self): | ||
| """First package without custom find_package""" | ||
| client = TestClient() | ||
| files = cpp_hello_conan_files(name="Hello0", | ||
| settings='"os", "compiler", "arch", "build_type"') | ||
| client.save(files) | ||
| client.run("create . user/channel -s build_type=Release") | ||
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| # Consume the previous Hello0 with auto generated FindHello0.cmake | ||
| # The module path will point to the "install" folder automatically (CMake helper) | ||
| files = cpp_hello_conan_files(name="Hello1", deps=["Hello0/0.1@user/channel"], | ||
| settings='"os", "compiler", "arch", "build_type"') | ||
| files["conanfile.py"] = files["conanfile.py"].replace( | ||
| 'generators = "cmake", "gcc"', | ||
| 'generators = "cmake_find_package"') | ||
| files["CMakeLists.txt"] = """ | ||
| set(CMAKE_CXX_COMPILER_WORKS 1) | ||
| set(CMAKE_CXX_ABI_COMPILED 1) | ||
| project(MyHello CXX) | ||
| cmake_minimum_required(VERSION 2.8) | ||
| find_package(Hello0 REQUIRED) | ||
| add_library(helloHello1 hello.cpp) | ||
| target_link_libraries(helloHello1 PUBLIC Hello0::Hello0) | ||
| add_executable(say_hello main.cpp) | ||
| target_link_libraries(say_hello helloHello1) | ||
| """ | ||
| client.save(files, clean_first=True) | ||
| client.run("create . user/channel -s build_type=Release") | ||
| self.assertIn("Conan: Using autogenerated FindHello0.cmake", client.out) | ||
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| # Now link with old cmake | ||
| files["CMakeLists.txt"] = """ | ||
| set(CMAKE_VERSION "2.8") | ||
| set(CMAKE_CXX_COMPILER_WORKS 1) | ||
| set(CMAKE_CXX_ABI_COMPILED 1) | ||
| project(MyHello CXX) | ||
| cmake_minimum_required(VERSION 2.8) | ||
| message(${CMAKE_BINARY_DIR}) | ||
| set(CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR} ${CMAKE_MODULE_PATH}) | ||
| find_package(Hello0 REQUIRED) | ||
| add_library(helloHello1 hello.cpp) | ||
| if(NOT DEFINED Hello0_FOUND) | ||
| message(FATAL_ERROR "Hello0_FOUND not declared") | ||
| endif() | ||
| if(NOT DEFINED Hello0_INCLUDE_DIRS) | ||
| message(FATAL_ERROR "Hello0_INCLUDE_DIRS not declared") | ||
| endif() | ||
| if(NOT DEFINED Hello0_INCLUDES) | ||
| message(FATAL_ERROR "Hello0_INCLUDES not declared") | ||
| endif() | ||
| if(NOT DEFINED Hello0_LIBRARIES) | ||
| message(FATAL_ERROR "Hello0_LIBRARIES not declared") | ||
| endif() | ||
| include_directories(${Hello0_INCLUDE_DIRS}) | ||
| target_link_libraries(helloHello1 PUBLIC ${Hello0_LIBS}) | ||
| add_executable(say_hello main.cpp) | ||
| target_link_libraries(say_hello helloHello1) | ||
| """ | ||
| client.save(files, clean_first=True) | ||
| client.run("create . user/channel -s build_type=Release") | ||
| self.assertIn("Conan: Using autogenerated FindHello0.cmake", client.out) | ||
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| # Now a transitive consumer, but the consumer only find_package the first level Hello1 | ||
| files = cpp_hello_conan_files(name="Hello2", deps=["Hello1/0.1@user/channel"], | ||
| settings='"os", "compiler", "arch", "build_type"') | ||
| files["CMakeLists.txt"] = """ | ||
| set(CMAKE_CXX_COMPILER_WORKS 1) | ||
| set(CMAKE_CXX_ABI_COMPILED 1) | ||
| project(MyHello CXX) | ||
| cmake_minimum_required(VERSION 2.8) | ||
| set(CMAKE_MODULE_PATH ${CMAKE_BINARY_DIR} ${CMAKE_MODULE_PATH}) | ||
| find_package(Hello1 REQUIRED) # We don't need to find Hello0, it is transitive | ||
| add_library(helloHello2 hello.cpp) | ||
| target_link_libraries(helloHello2 PUBLIC Hello1::Hello1) | ||
| add_executable(say_hello main.cpp) | ||
| target_link_libraries(say_hello helloHello2) | ||
| """ | ||
| files["conanfile.py"] = files["conanfile.py"].replace( | ||
| 'generators = "cmake", "gcc"', | ||
| 'generators = "cmake_find_package"') | ||
| client.save(files, clean_first=True) | ||
| client.run("create . user/channel -s build_type=Release") | ||
| self.assertIn("Conan: Using autogenerated FindHello0.cmake", client.out) | ||
| self.assertIn("Conan: Using autogenerated FindHello1.cmake", client.out) |
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