conan学习笔记

def requirements(self):
    # https://semver.npmjs.com/
    # 0.2.3, 0.2.4 等都行，但 0.1.x 和 0.3.x 不行
    self.requires("包名/[^0.2.3]")
    # 0.1.1, 0.1.2, 0.2.x, 0.3.x 都行
    self.requires("rusty-cpp/[>=0.1.1]")
    # 0.1.x都行
    self.requires("rcu-vector/[~0.1]")

cmake_minimum_required(VERSION 3.15)
project(包名 CXX)

# https://seekstar.github.io/2023/09/24/cmake打印导入的包中的warning/
set(CMAKE_NO_SYSTEM_FROM_IMPORTED TRUE)

find_package(依赖1 CONFIG REQUIRED)
find_package(依赖2 CONFIG REQUIRED)

aux_source_directory(src SRCS)
add_executable(${PROJECT_NAME} ${SRCS})

target_link_libraries(${PROJECT_NAME}
	PUBLIC
		依赖1
		依赖2
)

from conan import ConanFile
from conan.tools.cmake import CMakeToolchain, CMake, cmake_layout, CMakeDeps

class 下划线包名Recipe(ConanFile):
    name = "包名"
    version = "0.1.0"

    # Optional metadata
    license = ""
    author = "姓名 邮箱"
    url = "https://github.com/用户名/仓库名"
    description = ""
    topics = ("关键词1", "关键词2", "关键词3")

    # Binary configuration
    settings = "os", "compiler", "build_type", "arch"

    def requirements(self):
        self.requires("rusty-cpp/[>=0.1.5]")

    def layout(self):
        cmake_layout(self)

    def generate(self):
        deps = CMakeDeps(self)
        deps.generate()
        tc = CMakeToolchain(self)
        tc.generate()

    def build(self):
        cmake = CMake(self)
        cmake.configure()
        cmake.build()

cmake_minimum_required(VERSION 3.15)
project(包名 CXX)

# 为了兼容git submodule
# https://seekstar.github.io/2023/08/25/cmake-find-package兼容add-subdirectory/
if (NOT TARGET 依赖1)
	find_package(依赖1 CONFIG REQUIRED)
endif()
if (NOT TARGET 包2里的依赖2)
	find_package(包2 CONFIG REQUIRED COMPONENTS 依赖2)
endif()

add_library(${PROJECT_NAME} INTERFACE)
target_include_directories(${PROJECT_NAME} INTERFACE include)

# https://stackoverflow.com/a/59257505
file(GLOB_RECURSE HEADERS "include/*")
# PUBLIC_HEADER会被install
set_target_properties(${PROJECT_NAME} PROPERTIES PUBLIC_HEADER "${HEADERS}")
target_link_libraries(${PROJECT_NAME}
	INTERFACE
		依赖1
		依赖2
)

# 这里要设置DESTINATION，不然install的时候会直接被copy到include目录下面。
install(TARGETS ${PROJECT_NAME} DESTINATION "include/")

from conan import ConanFile
from conan.tools.cmake import CMakeToolchain, CMake, cmake_layout, CMakeDeps

class 下划线包名Recipe(ConanFile):
    name = "包名"
    version = "0.1.0"

    # Optional metadata
    license = ""
    author = "姓名 邮箱"
    url = "https://github.com/用户名/仓库名"
    description = ""
    topics = ("关键词1", "关键词2", "关键词3")

    # Binary configuration
    settings = "build_type"

    # Sources are located in the same place as this recipe, copy them to the recipe
    exports_sources = "CMakeLists.txt", "include/*"
    # We can avoid copying the sources to the build folder in the cache
    no_copy_source = True

    def requirements(self):
        self.requires("依赖1/[>=xx.xx.xx]")
        self.requires("包2/[~xx.xx]")

    def layout(self):
        cmake_layout(self)

    def generate(self):
        deps = CMakeDeps(self)
        deps.generate()
        tc = CMakeToolchain(self)
        tc.generate()

    def package(self):
        cmake = CMake(self)
        cmake.configure()
        cmake.install()

    def package_info(self):
        # 让依赖这个包的其他包知道这个包对应的CMake target叫什么名字
        self.cpp_info.set_property("cmake_target_name", "CMakeTarget名字")
        # For header-only packages, libdirs and bindirs are not used
        # so it's necessary to set those as empty.
        self.cpp_info.libdirs = []
        self.cpp_info.bindirs = []

    options = {
        "ARG1": ["ANY"],
        "ARG2": ["ANY"],
    }

    def build(self):
        cmake = CMake(self)
        cli_args=[
            "-DARG1=" + str(self.options.ARG1),
            "-DARG2=" + str(self.options.ARG2),
        ]
        cmake.configure(cli_args=cli_args)
        cmake.build()