Adding recipe for Himalaya

recipes/himalaya/all/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.1)
+project(cmake_wrapper)
+
+include(conanbuildinfo.cmake)
+conan_basic_setup()
+
+add_subdirectory("source_subfolder")

recipes/himalaya/all/conandata.yml

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+sources:
+  "4.1.1":
+    url: "https://github.com/Himalaya-Library/Himalaya/archive/4.1.1.tar.gz"
+    sha256: "ee83db85f7be743708dc0e2e04cd2addcbbefca7470c11b18d3d9fedb325d36e"

recipes/himalaya/all/conanfile.py

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+import os
+from conans import ConanFile, CMake, tools
+from conans.errors import ConanInvalidConfiguration
+
+required_conan_version = ">=1.30.0"
+
+
+class HimalayaConan(ConanFile):
+    name = "himalaya"
+    license = "GPL-3.0-only"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/Himalaya-Library/Himalaya"
+    description = "C++ library to calculate three-loop corrections to the Higgs boson mass in the MSSM"
+    topics = ("conan", "high-energy", "physics", "hep", "Higgs", "mass", "MSSM")
+    settings = "os", "compiler", "build_type", "arch"
+    options = {"fPIC": [True, False], "shared": [True, False]}
+    default_options = {"fPIC": True, "shared": False}
+    exports_sources = ["CMakeLists.txt"]
+    generators = "cmake"
+    _cmake = None
+
+    @property
+    def _source_subfolder(self):
+        return "source_subfolder"
+
+    @property
+    def _build_subfolder(self):
+        return "build_subfolder"
+
+    @property 
+    def _minimum_compilers_version(self): 
+        return {
+            "Visual Studio": "15", 
+            "gcc": "5", 
+            "clang": "5", 
+            "apple-clang": "5.1", 
+        } 
+
+    def validate(self):
+        if self.settings.compiler.cppstd: 
+            check_min_cppstd(self, "14")
+        minimum_version = self._minimum_compilers_version.get(str(self.settings.compiler), False) 
+        if not minimum_version: 
+            self.output.warn("Himalaya requires C++14. Your compiler is unknown. Assuming it supports C++14.") 
+        elif tools.Version(self.settings.compiler.version) < minimum_version: 
+            raise ConanInvalidConfiguration("Himalaya requires C++14, which your compiler does not support.") 
+        if self.settings.compiler == "Visual Studio":
+            raise ConanInvalidConfiguration("Himalaya does not support {}".format(self.settings.compiler))
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+
+    def build_requirements(self):
+        self.build_requires("gfortran/10.2")
+
+    def requirements(self):
+        self.requires("eigen/3.3.9")
+
+    def source(self):
+        tools.get(**self.conan_data["sources"][self.version])
+        os.rename("Himalaya-{}".format(self.version), self._source_subfolder)
+
+    def build(self):
+        cmake = self._configure_cmake()
+        cmake.build()
+
+    def _configure_cmake(self):
+        if self._cmake:
+            return self._cmake
+        self._cmake = CMake(self)
+        self._cmake.definitions["BUILD_EXAMPLES"] = False
+        self._cmake.configure(build_folder=self._build_subfolder)
+        return self._cmake
+
+    def package(self):
+        self.copy(pattern="LICENSE", dst="licenses", src=self._source_subfolder)
+        cmake = self._configure_cmake()
+        cmake.install()
+        tools.rmdir(os.path.join(self.package_folder, "share"))
+
+    def package_info(self):
+        self.cpp_info.names["cmake_find_package"] = "Himalaya"
+        self.cpp_info.names["cmake_find_package_multi"] = "Himalaya"
+        self.cpp_info.names["pkg_config"] = "himalaya"
+        self.cpp_info.libs = ["Himalaya", "DSZ"]
+        self.cpp_info.requires = ["eigen::eigen"]

recipes/himalaya/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.1)
+project(PackageTest CXX)
+
+include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
+conan_basic_setup(TARGETS)
+
+add_executable(test_package test_package.cpp)
+target_link_libraries(test_package CONAN_PKG::himalaya)
+set_property(TARGET test_package PROPERTY CXX_STANDARD 14)

recipes/himalaya/all/test_package/conanfile.py

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

recipes/himalaya/all/test_package/test_package.cpp

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+#include "himalaya/HierarchyCalculator.hpp"
+#include "himalaya/version.hpp"
+#include <iostream>
+#include <cmath>
+
+himalaya::Parameters setup_point(double MS, double tb, double xt)
+{
+   himalaya::Parameters pars;
+
+   const double MS2 = MS*MS;
+   const double Xt = xt*MS;
+   const double beta = std::atan(tb);
+   pars.scale = MS;
+   pars.mu = MS;
+   pars.g1 = 0.46;
+   pars.g2 = 0.65;
+   pars.g3 = 1.166;
+   pars.vd = 246*std::cos(beta);
+   pars.vu = 246*std::sin(beta);
+   pars.mq2 << MS2, 0, 0,
+               0, MS2, 0,
+               0, 0, MS2;
+   pars.md2 << MS2, 0, 0,
+               0, MS2, 0,
+               0, 0, MS2;
+   pars.mu2 << MS2, 0, 0,
+               0, MS2, 0,
+               0, 0, MS2;
+   pars.ml2 << MS2, 0, 0,
+               0, MS2, 0,
+               0, 0, MS2;
+   pars.me2 << MS2, 0, 0,
+               0, MS2, 0,
+               0, 0, MS2;
+   pars.Au << 0, 0, 0,
+              0, 0, 0,
+              0, 0, Xt + pars.mu/tb;
+   pars.Ad << 0, 0, 0, 0, 0, 0, 0, 0, 0;
+   pars.Ae << 0, 0, 0, 0, 0, 0, 0, 0, 0;
+   pars.Yu << 0, 0, 0, 0, 0, 0, 0, 0, 0.862;
+   pars.Yd << 0, 0, 0, 0 ,0 ,0 ,0 ,0, 0.133;
+   pars.Ye << 0, 0, 0, 0, 0, 0, 0, 0, 0.101;
+   pars.MA = MS;
+   pars.M1 = MS;
+   pars.M2 = MS;
+   pars.MG = MS;
+
+   pars.validate(true);
+
+   return pars;
+}
+
+int main()
+{
+   const auto point = setup_point(2000., 20., std::sqrt(6.));
+   himalaya::HierarchyCalculator hc(point);
+
+   try {
+      // calculate the 3-loop corrections O(α_t*α_s^2)
+      const auto ho = hc.calculateDMh3L(false);
+
+      // extract 2x2 matrix with three-loop O(αt*αs^2) corrections
+      const auto dMh3L = ho.getDMh(3);
+      // extract three-loop O(αt*αs^2) correction to λ (DR'-bar scheme)
+      const double delta_lambda_3L_DR = ho.getDLambda(3);
+      // extract uncertainty estimate
+      const double delta_lambda_3L_uncertainty = ho.getDLambdaUncertainty(3);
+      // convert to MS-bar scheme
+      const double delta_lambda_3L_MS =
+         delta_lambda_3L_DR + ho.getDLambdaDRbarPrimeToMSbarShift(3);
+
+      std::cout << "Himalaya version: "
+                << Himalaya_VERSION_MAJOR << '.'
+                << Himalaya_VERSION_MINOR << '.'
+                << Himalaya_VERSION_RELEASE << '\n';
+
+      std::cout << "ΔMh^2(3-loop,DR') = \n" << dMh3L << '\n'
+                << "Δλ(3-loop,DR') = " << delta_lambda_3L_DR
+                << " +- " << delta_lambda_3L_uncertainty << '\n'
+                << "Δλ(3-loop,MS) = " << delta_lambda_3L_MS
+                << " +- " << delta_lambda_3L_uncertainty << '\n';
+   } catch (const std::exception& e) {
+      std::cerr << "Error: " << e.what() << '\n';
+   }
+
+   return 0;
+}

recipes/himalaya/config.yml

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+versions:
+  "4.1.1":
+    folder: all