(#14318) alpaca: add recipe

recipes/alpaca/all/conandata.yml

@@ -0,0 +1,4 @@
+sources:
+  "0.2.1":
+    url: "https://github.com/p-ranav/alpaca/archive/refs/tags/v0.2.1.tar.gz"
+    sha256: "05d49a2dc9c6a9e07c0cbc4e26caec273a8666270c82d7c3f0ede4f3a9258f4e"

recipes/alpaca/all/conanfile.py

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+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.build import check_min_cppstd
+from conan.tools.files import get, copy
+from conan.tools.layout import basic_layout
+from conan.tools.microsoft import check_min_vs, is_msvc
+from conan.tools.scm import Version
+import os
+
+
+required_conan_version = ">=1.52.0"
+
+
+class AlpacaConan(ConanFile):
+    name = "alpaca"
+    description = "Serialization library written in C++17 - Pack C++ structs into a compact byte-array without any macros or boilerplate code"
+    license = "MIT"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/p-ranav/alpaca"
+    topics = ("reflection", "checksum", "serialization", "header-only")
+    settings = "os", "arch", "compiler", "build_type"
+    no_copy_source = True
+
+    @property
+    def _min_cppstd(self):
+        return 17
+
+    @property
+    def _compilers_minimum_version(self):
+        return {
+            "gcc": "8",
+            "clang": "7",
+            "apple-clang": "12",
+        }
+
+    def layout(self):
+        basic_layout(self, src_folder="src")
+
+    def package_id(self):
+        self.info.clear()
+
+    def validate(self):
+        if self.settings.compiler.get_safe("cppstd"):
+            check_min_cppstd(self, self._min_cppstd)
+        check_min_vs(self, 192)
+        if not is_msvc(self):
+            minimum_version = self._compilers_minimum_version.get(str(self.settings.compiler), False)
+            if minimum_version and Version(self.settings.compiler.version) < minimum_version:
+                raise ConanInvalidConfiguration(
+                    f"{self.ref} requires C++{self._min_cppstd}, which your compiler does not support."
+                )
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], destination=self.source_folder, strip_root=True)
+
+    def package(self):
+        copy(self, pattern="LICENSE", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
+        copy(
+            self,
+            pattern="*.h",
+            dst=os.path.join(self.package_folder, "include"),
+            src=os.path.join(self.source_folder, "include"),
+        )
+
+    def package_info(self):
+        self.cpp_info.bindirs = []
+        self.cpp_info.libdirs = []
+
+        self.cpp_info.set_property("pkg_config_name", "alpaca")

recipes/alpaca/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.8)
+project(test_package LANGUAGES CXX)
+
+find_package(alpaca REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PRIVATE alpaca::alpaca)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_17)

recipes/alpaca/all/test_package/conanfile.py

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+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import cmake_layout, CMake
+import os
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindirs[0], "test_package")
+            self.run(bin_path, env="conanrun")

recipes/alpaca/all/test_package/test_package.cpp

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+#include <alpaca/alpaca.h>
+
+struct Config {
+  std::string device;
+  std::pair<unsigned, unsigned> resolution;
+  std::array<double, 9> K_matrix;
+  std::vector<float> distortion_coeffients;
+  std::map<std::string, std::variant<uint16_t, std::string, bool>> parameters;
+};
+
+int main() {
+    // Construct the object
+    Config c{"/dev/video0", {640, 480},
+        {223.28249888247538, 0.0, 152.30570853111396,
+        0.0, 223.8756535707556, 124.5606000035353,
+        0.0, 0.0, 1.0},
+        {-0.44158343539568284, 0.23861463831967872, 0.0016338407443826572,
+        0.0034950038632981604, -0.05239245892096022},
+        {{"start_server", bool{true}},
+        {"max_depth", uint16_t{5}},
+        {"model_path", std::string{"foo/bar.pt"}}}};
+
+    // Serialize
+    std::vector<uint8_t> bytes;
+    auto bytes_written = alpaca::serialize(c, bytes);
+
+    // Deserialize
+    std::error_code ec;
+    auto object = alpaca::deserialize<Config>(bytes, ec);
+    if (ec) {
+        return 1;
+    }
+    return 0;
+}
+

recipes/alpaca/all/test_v1_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.8)
+project(test_package LANGUAGES C) # if the project is pure C
+project(test_package LANGUAGES CXX) # if the project uses c++
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup(TARGETS)
+
+add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../test_package/
+                 ${CMAKE_CURRENT_BINARY_DIR}/test_package/)

recipes/alpaca/all/test_v1_package/conanfile.py

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+from conans import ConanFile, CMake
+from conan.tools.build import cross_building
+import os
+
+
+class TestPackageV1Conan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "cmake", "cmake_find_package_multi"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not cross_building(self):
+            bin_path = os.path.join("bin", "test_package")
+            self.run(bin_path, run_environment=True)

recipes/alpaca/config.yml

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+versions:
+  "0.2.1":
+    folder: all