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conanfile.py
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conanfile.py
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import os
from conans import ConanFile, CMake, tools
from conans.errors import ConanInvalidConfiguration
from conans.tools import Version
class ProtobufConan(ConanFile):
name = "protobuf"
description = "Protocol Buffers - Google's data interchange format"
topics = ("conan", "protobuf", "protocol-buffers",
"protocol-compiler", "serialization", "rpc", "protocol-compiler")
url = "https://github.com/conan-io/conan-center-index"
homepage = "https://github.com/protocolbuffers/protobuf"
license = "BSD-3-Clause"
exports_sources = ["CMakeLists.txt", "patches/*"]
generators = "cmake"
short_paths = True
settings = "os", "arch", "compiler", "build_type"
options = {
"fPIC": [True, False],
"lite": [True, False],
"shared": [True, False],
"with_rtti": [True, False],
"with_zlib": [True, False]
}
default_options = {
"fPIC": True,
"lite": False,
"shared": False,
"with_rtti": True,
"with_zlib": False
}
_cmake = None
@property
def _source_subfolder(self):
return "source_subfolder"
@property
def _build_subfolder(self):
return "build_subfolder"
@property
def _is_clang_x86(self):
return self.settings.compiler == "clang" and self.settings.arch == "x86"
@property
def _can_disable_rtti(self):
return tools.Version(self.version) >= "3.15.4"
def source(self):
tools.get(**self.conan_data["sources"][self.version])
extracted_folder = self.name + "-" + self.version
os.rename(extracted_folder, self._source_subfolder)
def config_options(self):
if self.settings.os == "Windows":
del self.options.fPIC
if not self._can_disable_rtti:
del self.options.with_rtti
def configure(self):
if self.options.shared:
del self.options.fPIC
if self.settings.os == "Windows" and self.settings.compiler in ["Visual Studio", "clang"] and "MT" in self.settings.compiler.runtime:
raise ConanInvalidConfiguration("Protobuf can't be built with shared + MT(d) runtimes")
if tools.is_apple_os(self.settings.os):
raise ConanInvalidConfiguration("Protobuf could not be built as shared library for Mac.")
if self.settings.compiler == "Visual Studio":
if Version(self.settings.compiler.version) < "14":
raise ConanInvalidConfiguration("On Windows Protobuf can only be built with "
"Visual Studio 2015 or higher.")
if self.settings.compiler == "clang":
if tools.Version(self.version) >= "3.15.4" and tools.Version(self.settings.compiler.version) < "4":
raise ConanInvalidConfiguration("protobuf {} doesn't support clang < 4".format(self.version))
def requirements(self):
if self.options.with_zlib:
self.requires("zlib/1.2.11")
@property
def _cmake_install_base_path(self):
return os.path.join("lib", "cmake", "protobuf")
def _configure_cmake(self):
if not self._cmake:
self._cmake = CMake(self)
self._cmake.definitions["CMAKE_INSTALL_CMAKEDIR"] = self._cmake_install_base_path.replace("\\", "/")
self._cmake.definitions["protobuf_WITH_ZLIB"] = self.options.with_zlib
self._cmake.definitions["protobuf_BUILD_TESTS"] = False
self._cmake.definitions["protobuf_BUILD_PROTOC_BINARIES"] = True
self._cmake.definitions["protobuf_BUILD_LIBPROTOC"] = True
if self._can_disable_rtti:
self._cmake.definitions["protobuf_DISABLE_RTTI"] = not self.options.with_rtti
if self.settings.compiler == "Visual Studio":
self._cmake.definitions["protobuf_MSVC_STATIC_RUNTIME"] = "MT" in str(self.settings.compiler.runtime)
self._cmake.configure(build_folder=self._build_subfolder)
return self._cmake
def _patch_sources(self):
for patch in self.conan_data.get("patches", {}).get(self.version, []):
tools.patch(**patch)
find_protoc = """
# Find the protobuf compiler within the paths added by Conan, for use below.
find_program(PROTOC_PROGRAM protoc)
if(NOT PROTOC_PROGRAM)
set(PROTOC_PROGRAM "protoc")
endif()
"""
tools.replace_in_file(
os.path.join(self._source_subfolder, "cmake", "protobuf-config.cmake.in"),
"@_protobuf_FIND_ZLIB@",
"# CONAN PATCH _protobuf_FIND_ZLIB@"
)
tools.replace_in_file(
os.path.join(self._source_subfolder, "cmake", "protobuf-config.cmake.in"),
"include(\"${CMAKE_CURRENT_LIST_DIR}/protobuf-targets.cmake\")",
"# CONAN PATCH include(\"${CMAKE_CURRENT_LIST_DIR}/protobuf-targets.cmake\")" + find_protoc
)
if tools.Version(self.version) < "3.12.0":
tools.replace_in_file(
os.path.join(self._source_subfolder, "cmake", "protobuf-config.cmake.in"),
"""COMMAND protobuf::protoc
ARGS --${protobuf_generate_LANGUAGE}_out ${_dll_export_decl}${protobuf_generate_PROTOC_OUT_DIR} ${_protobuf_include_path} ${_abs_file}
DEPENDS ${_abs_file} protobuf::protoc""",
"""COMMAND "${CMAKE_COMMAND}"
ARGS -E env "DYLD_LIBRARY_PATH=${Protobuf_LIB_DIRS}:${CONAN_LIB_DIRS}:${Protobuf_LIB_DIRS_RELEASE}:${Protobuf_LIB_DIRS_DEBUG}:${Protobuf_LIB_DIRS_RELWITHDEBINFO}:${Protobuf_LIB_DIRS_MINSIZEREL}" ${PROTOC_PROGRAM} --${protobuf_generate_LANGUAGE}_out ${_dll_export_decl}${protobuf_generate_PROTOC_OUT_DIR} ${_protobuf_include_path} ${_abs_file}
DEPENDS ${_abs_file} USES_TERMINAL"""
)
else:
tools.replace_in_file(
os.path.join(self._source_subfolder, "cmake", "protobuf-config.cmake.in"),
"""COMMAND protobuf::protoc
ARGS --${protobuf_generate_LANGUAGE}_out ${_dll_export_decl}${protobuf_generate_PROTOC_OUT_DIR} ${_plugin} ${_protobuf_include_path} ${_abs_file}
DEPENDS ${_abs_file} protobuf::protoc""",
"""COMMAND "${CMAKE_COMMAND}"
ARGS -E env "DYLD_LIBRARY_PATH=${Protobuf_LIB_DIRS}:${CONAN_LIB_DIRS}:${Protobuf_LIB_DIRS_RELEASE}:${Protobuf_LIB_DIRS_DEBUG}:${Protobuf_LIB_DIRS_RELWITHDEBINFO}:${Protobuf_LIB_DIRS_MINSIZEREL}" ${PROTOC_PROGRAM} --${protobuf_generate_LANGUAGE}_out ${_dll_export_decl}${protobuf_generate_PROTOC_OUT_DIR} ${_plugin} ${_protobuf_include_path} ${_abs_file}
DEPENDS ${_abs_file} USES_TERMINAL"""
)
tools.replace_in_file(
os.path.join(self._source_subfolder, "cmake", "protobuf-module.cmake.in"),
'if(DEFINED Protobuf_SRC_ROOT_FOLDER)',
"""if(0)
if(DEFINED Protobuf_SRC_ROOT_FOLDER)""",
)
tools.replace_in_file(
os.path.join(self._source_subfolder, "cmake", "protobuf-module.cmake.in"),
'# Define upper case versions of output variables',
'endif()',
)
def build(self):
self._patch_sources()
cmake = self._configure_cmake()
cmake.build()
def package(self):
self.copy("LICENSE", dst="licenses", src=self._source_subfolder)
cmake = self._configure_cmake()
cmake.install()
tools.rmdir(os.path.join(self.package_folder, "lib", "pkgconfig"))
os.unlink(os.path.join(self.package_folder, self._cmake_install_base_path, "protobuf-config-version.cmake"))
os.unlink(os.path.join(self.package_folder, self._cmake_install_base_path, "protobuf-targets.cmake"))
os.unlink(os.path.join(self.package_folder, self._cmake_install_base_path, "protobuf-targets-{}.cmake".format(str(self.settings.build_type).lower())))
os.rename(os.path.join(self.package_folder, self._cmake_install_base_path, "protobuf-config.cmake"),
os.path.join(self.package_folder, self._cmake_install_base_path, "protobuf-generate.cmake"))
if not self.options.lite:
tools.remove_files_by_mask(os.path.join(self.package_folder, "lib"), "libprotobuf-lite.*")
tools.remove_files_by_mask(os.path.join(self.package_folder, "bin"), "libprotobuf-lite.*")
def package_info(self):
# The module name is Protobuf while the config name is protobuf
self.cpp_info.filenames["cmake_find_package"] = "Protobuf"
self.cpp_info.filenames["cmake_find_package_multi"] = "protobuf"
self.cpp_info.names["cmake_find_package"] = "protobuf"
self.cpp_info.names["cmake_find_package_multi"] = "protobuf"
lib_prefix = "lib" if self.settings.compiler == "Visual Studio" else ""
lib_suffix = "d" if self.settings.build_type == "Debug" else ""
self.cpp_info.components["libprotobuf"].names["cmake_find_package"] = "libprotobuf"
self.cpp_info.components["libprotobuf"].names["cmake_find_package_multi"] = "libprotobuf"
self.cpp_info.components["libprotobuf"].names["pkg_config"] = "protobuf"
self.cpp_info.components["libprotobuf"].libs = [lib_prefix + "protobuf" + lib_suffix]
if self.options.with_zlib:
self.cpp_info.components["libprotobuf"].requires = ["zlib::zlib"]
if self.settings.os == "Linux":
self.cpp_info.components["libprotobuf"].system_libs.append("pthread")
if self._is_clang_x86 or "arm" in str(self.settings.arch):
self.cpp_info.components["libprotobuf"].system_libs.append("atomic")
if self.settings.os == "Windows":
if self.options.shared:
self.cpp_info.components["libprotobuf"].defines = ["PROTOBUF_USE_DLLS"]
self.cpp_info.components["libprotobuf"].builddirs = [
self._cmake_install_base_path,
]
self.cpp_info.components["libprotobuf"].builddirs = [self._cmake_install_base_path]
self.cpp_info.components["libprotobuf"].build_modules.extend([
os.path.join(self._cmake_install_base_path, "protobuf-generate.cmake"),
os.path.join(self._cmake_install_base_path, "protobuf-module.cmake"),
os.path.join(self._cmake_install_base_path, "protobuf-options.cmake"),
])
self.cpp_info.components["libprotoc"].name = "libprotoc"
self.cpp_info.components["libprotoc"].libs = [lib_prefix + "protoc" + lib_suffix]
self.cpp_info.components["libprotoc"].requires = ["libprotobuf"]
self.cpp_info.components["protoc"].name = "protoc"
self.cpp_info.components["protoc"].requires.extend(["libprotoc", "libprotobuf"])
bindir = os.path.join(self.package_folder, "bin")
self.output.info("Appending PATH environment variable: {}".format(bindir))
self.env_info.PATH.append(bindir)
if self.options.lite:
self.cpp_info.components["libprotobuf-lite"].names["cmake_find_package"] = "libprotobuf-lite"
self.cpp_info.components["libprotobuf-lite"].names["cmake_find_package_multi"] = "libprotobuf-lite"
self.cpp_info.components["libprotobuf-lite"].names["pkg_config"] = "protobuf-lite"
self.cpp_info.components["libprotobuf-lite"].libs = [lib_prefix + "protobuf-lite" + lib_suffix]
if self.settings.os == "Linux":
self.cpp_info.components["libprotobuf-lite"].system_libs.append("pthread")
if self._is_clang_x86 or "arm" in str(self.settings.arch):
self.cpp_info.components["libprotobuf-lite"].system_libs.append("atomic")
if self.settings.os == "Windows":
if self.options.shared:
self.cpp_info.components["libprotobuf-lite"].defines = ["PROTOBUF_USE_DLLS"]
self.cpp_info.components["libprotobuf-lite"].builddirs = [self._cmake_install_base_path]
self.cpp_info.components["libprotobuf-lite"].build_modules.extend([
os.path.join(self._cmake_install_base_path, "protobuf-generate.cmake"),
os.path.join(self._cmake_install_base_path, "protobuf-module.cmake"),
os.path.join(self._cmake_install_base_path, "protobuf-options.cmake"),
])