本文档翻译自：https://docs.conan.io/en/latest/creating_packages/package_repo.html#exporting-the-sources-with-the-recipe-exports-sources

    如果我们希望包配方与打包的源代码位于同一存储库中，这可能是一种合适的方法。
    首先，让我们获取初始源代码并创建基本包配方:

    1. $ conan new hello/0.1 -t -s

    这将生成以下文件:

    1. conanfile.py
    2. src
    3.   CMakeLists.txt
    4.   hello.cpp
    5.   hello.h
    6. test_package
    7.   CMakeLists.txt
    8.   conanfile.py
    9.   example.cpp

    将使用之前的示例（hello）源代码创建src文件夹，现在让我们来看看conanfile.py:

    1. from conans import ConanFile, CMake
    3. class HelloConan(ConanFile):
    4.     name = "hello"
    5.     version = "0.1"
    6.     license = "<Put the package license here>"
    7.     url = "<Package recipe repository url here, for issues about the package>"
    8.     description = "<Description of hello here>"
    9.     settings = "os", "compiler", "build_type", "arch"
    10.     options = {"shared": [True, False]}
    11.     default_options = {"shared": False}
    12.     generators = "cmake"
    13.     exports_sources = "src/*"
    15.     def build(self):
    16.         cmake = CMake(self)
    17.         cmake.configure(source_folder="src")
    18.         cmake.build()
    20.         # Explicit way:
    21.         # self.run('cmake "%s/src" %s' % (self.source_folder, cmake.command_line))
    22.         # self.run("cmake --build . %s" % cmake.build_config)
    24.     def package(self):
    25.         self.copy("*.h", dst="include", src="src")
    26.         self.copy("*.lib", dst="lib", keep_path=False)
    27.         self.copy("*.dll", dst="bin", keep_path=False)
    28.         self.copy("*.dylib*", dst="lib", keep_path=False)
    29.         self.copy("*.so", dst="lib", keep_path=False)
    30.         self.copy("*.a", dst="lib", keep_path=False)
    32.     def package_info(self):
    33.         self.cpp_info.libs = ["hello"]

    有两个重要的变化:

    • 添加了exports_source字段，指示Conan将本地src文件夹中的所有文件复制到包配方中。
    • 删除了source() 方法，因为不再需要检索外部源。

    另外，您可以注意到两行CMake:

    1. include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
    2. conan_basic_setup()

    它们不会添加到包配方中，因为它们可以直接添加到 src/CMakeLists.txt 文件中。
    如前所述，只需为 user 和 channel demo/testing 创建包:

    1. $ conan create . demo/testing
    2. ...
    3. hello/0.1@demo/testing test package: Running test()
    4. Hello world Release!