gm2calc: migrate to Conan v2

recipes/gm2calc/all/conandata.yml

@@ -11,4 +11,3 @@ sources:
 patches:
   "1.7.5":
     - patch_file: "patches/0001-update-1.7.5-to-FindMathematica-3.6.0.patch"
-      base_path: "source_subfolder"

recipes/gm2calc/all/conanfile.py

@@ -1,74 +1,86 @@
 import os
-import conan
-from conans import ConanFile, CMake, tools
 
-required_conan_version = ">=1.30.0"
+from conan import ConanFile
+from conan.tools.build import check_min_cppstd
+from conan.tools.cmake import CMake, CMakeDeps, CMakeToolchain, cmake_layout
+from conan.tools.files import apply_conandata_patches, copy, export_conandata_patches, get, rmdir, replace_in_file
+
+required_conan_version = ">=1.53.0"
 
 
 class Gm2calcConan(ConanFile):
     name = "gm2calc"
+    description = "C++ library to calculate the anomalous magnetic moment of the muon in the MSSM and 2HDM"
     license = "GPL-3.0"
     url = "https://github.com/conan-io/conan-center-index"
     homepage = "https://github.com/GM2Calc/GM2Calc"
-    description = "C++ library to calculate the anomalous magnetic moment of the muon in the MSSM and 2HDM"
     topics = ("high-energy", "physics", "hep", "magnetic moment", "muon", "mssm", "2hdm")
-    settings = "os", "compiler", "build_type", "arch"
-    options = {"shared": [True, False], "fPIC": [True, False]}
-    default_options = {"shared": False, "fPIC": True}
-    exports_sources = ["CMakeLists.txt"]
-    generators = "cmake", "cmake_find_package"
-    _cmake = None
-
-    @property
-    def _source_subfolder(self):
-        return "source_subfolder"
 
-    @property
-    def _build_subfolder(self):
-        return "build_subfolder"
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+    }
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+    }
 
     def export_sources(self):
-        for patch in self.conan_data.get("patches", {}).get(self.version, []):
-            self.copy(patch["patch_file"])
+        export_conandata_patches(self)
 
     def config_options(self):
         if self.settings.os == "Windows":
             del self.options.fPIC
 
     def configure(self):
         if self.options.shared:
-            del self.options.fPIC
+            self.options.rm_safe("fPIC")
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
 
     def requirements(self):
-        self.requires("boost/1.75.0")
-        self.requires("eigen/3.3.9")
+        self.requires("boost/1.82.0")
+        self.requires("eigen/3.4.0", transitive_headers=True)
+
+    def validate(self):
+        if self.settings.compiler.get_safe("cppstd"):
+            check_min_cppstd(self, 11)
 
     def source(self):
-        tools.get(**self.conan_data["sources"][self.version])
-        conan.tools.files.rename(self, "GM2Calc-{}".format(self.version), self._source_subfolder)
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS"] = True
+        tc.generate()
+        tc = CMakeDeps(self)
+        tc.generate()
+
+    def _patch_sources(self):
+        apply_conandata_patches(self)
+        replace_in_file(self, os.path.join(self.source_folder, "src", "CMakeLists.txt"), "EIGEN3", "Eigen3")
 
     def build(self):
-        for patch in self.conan_data.get("patches", {}).get(self.version, []):
-            tools.patch(**patch)
-        cmake = self._configure_cmake()
+        self._patch_sources()
+        cmake = CMake(self)
+        cmake.configure()
         cmake.build()
 
-    def _configure_cmake(self):
-        if self._cmake:
-            return self._cmake
-        self._cmake = CMake(self)
-        self._cmake.configure(build_folder=self._build_subfolder)
-        return self._cmake
-
     def package(self):
-        self.copy(pattern="COPYING", dst="licenses", src=self._source_subfolder)
-        cmake = self._configure_cmake()
+        copy(self, "COPYING", dst=os.path.join(self.package_folder, "licenses"), src=self.source_folder)
+        cmake = CMake(self)
         cmake.install()
-        tools.rmdir(os.path.join(self.package_folder, "share"))
+        rmdir(self, os.path.join(self.package_folder, "share"))
 
     def package_info(self):
+        self.cpp_info.set_property("cmake_file_name", "GM2Calc")
+        self.cpp_info.set_property("cmake_target_name", "GM2Calc::GM2Calc")
+        self.cpp_info.set_property("pkg_config_name", "gm2calc")
+        self.cpp_info.libs = ["gm2calc"]
+
+        # TODO: to remove in conan v2 once cmake_find_package_* generators removed
         self.cpp_info.names["cmake_find_package"] = "GM2Calc"
         self.cpp_info.names["cmake_find_package_multi"] = "GM2Calc"
-        self.cpp_info.names["pkg_config"] = "gm2calc"
-        self.cpp_info.libs = ["gm2calc"]
-        self.cpp_info.requires = ["boost::headers", "eigen::eigen"]

recipes/gm2calc/all/test_package/CMakeLists.txt

@@ -1,11 +1,10 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.15)
 project(PackageTest C CXX)
 
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup()
+find_package(GM2Calc REQUIRED CONFIG)
 
 add_executable(test_package test_package.cpp)
-target_link_libraries(test_package ${CONAN_LIBS})
+target_link_libraries(test_package PRIVATE GM2Calc::GM2Calc)

recipes/gm2calc/all/test_package/conanfile.py

@@ -1,17 +1,26 @@
+from conan import ConanFile
+from conan.tools.build import can_run
+from conan.tools.cmake import cmake_layout, CMake
 import os
 
-from conans import ConanFile, CMake, tools
 
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain"
+    test_type = "explicit"
 
-class Gm2calcTestConan(ConanFile):
-    settings = "os", "compiler", "build_type", "arch"
-    generators = "cmake"
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def layout(self):
+        cmake_layout(self)
 
     def build(self):
         cmake = CMake(self)
         cmake.configure()
         cmake.build()
 
     def test(self):
-        if not tools.cross_building(self):
-            self.run(os.path.join("bin", "test_package"), run_environment=True)
+        if can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindir, "test_package")
+            self.run(bin_path, env="conanrun")

recipes/gm2calc/all/test_v1_package/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.15)
+project(test_package)
+
+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/gm2calc/all/test_v1_package/conanfile.py

@@ -0,0 +1,17 @@
+import os
+
+from conans import ConanFile, CMake, tools
+
+
+class Gm2calcTestConan(ConanFile):
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "cmake", "cmake_find_package_multi"
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    def test(self):
+        if not tools.cross_building(self):
+            self.run(os.path.join("bin", "test_package"), run_environment=True)