(conan-io#14543) Add loguru/2.1.0 recipe

* Add `loguru/2.1.0` recipe

Loguru: a lightweight and flexible C++ logging library.

Website: https://emilk.github.io/loguru/index.html
Source code: https://github.com/emilk/loguru

Closes conan-io#14542

* Simplify CMake and native features usage (conan-io#1)

Simplifications and Conan v2 fixes

* Update recipes/loguru/all/conanfile.py

* Update recipes/loguru/all/conanfile.py

* Update recipes/loguru/all/conanfile.py

* loguru: use latest commit with CMake support

* fixup: missing comma

* fixup: typo

* chore: rm config files

* fixup: clean up defines

* add includedirs, simplify test_package

* add suffix

* add m

* fix windows shared

* remove pdbs

---------

Co-authored-by: Uilian Ries <[email protected]>
Co-authored-by: Chris Mc <[email protected]>
Co-authored-by: czoido <[email protected]>

recipes/loguru/all/conandata.yml

@@ -0,0 +1,4 @@
+sources:
+  "cci.20230406":
+    url: "https://github.com/emilk/loguru/archive/4adaa185883e3c04da25913579c451d3c32cfac1.tar.gz"
+    sha256: "1424f3ce814fa413e5fbdf2949994d455e3914560f958d2931ba869349a686a8"

recipes/loguru/all/conanfile.py

@@ -0,0 +1,139 @@
+import os
+
+from conan import ConanFile
+from conan.errors import ConanInvalidConfiguration
+from conan.tools.cmake import CMake, CMakeToolchain, CMakeDeps, cmake_layout
+from conan.tools.microsoft import is_msvc
+from conan.tools.files import get, load, save, rmdir, rm
+from conan.tools.build import check_min_cppstd
+
+
+required_conan_version = ">=1.53.0"
+
+
+class LoguruConan(ConanFile):
+    name = "loguru"
+    url = "https://github.com/conan-io/conan-center-index"
+    homepage = "https://github.com/emilk/loguru"
+    license = "Unlicense"
+    topics = ("logging", "log", "fmt")
+    description = "Loguru is a C++11 logging library."
+    package_type = "library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "shared": [True, False],
+        "fPIC": [True, False],
+        "with_fmt": [True, False],
+        "verbose_scope_endings": [True, False],
+        "redefine_assert": [True, False],
+        "enable_streams": [True, False],
+        "enable_fileabs": [True, False],
+        "replace_glog": [True, False],
+
+        "scope_text_size": [None, "ANY"],
+        "scope_time_precision": [None, "ANY"],
+        "filename_width": [None, "ANY"],
+        "threadname_width": [None, "ANY"],
+    }
+
+    default_options = {
+        "shared": False,
+        "fPIC": True,
+        "with_fmt": False,
+        "verbose_scope_endings": True,
+        "redefine_assert": False,
+        "enable_streams": False,
+        "enable_fileabs": False,
+        "replace_glog": False,
+        "scope_text_size": 196,
+        "scope_time_precision": 3,
+        "filename_width": 23,
+        "threadname_width": 16,
+    }
+
+    def config_options(self):
+        if self.settings.os == "Windows":
+            del self.options.fPIC
+
+    def configure(self):
+        if self.options.shared:
+            self.options.rm_safe("fPIC")
+
+    def requirements(self):
+        if self.options.with_fmt:
+            self.requires("fmt/9.1.0", transitive_headers=True)
+
+    def validate(self):
+        if self.settings.compiler.cppstd:
+            check_min_cppstd(self, 11)
+
+        if self.options.replace_glog and not self.options.enable_streams:
+            # https://github.com/emilk/loguru/blob/4adaa185883e3c04da25913579c451d3c32cfac1/docs/index.html#L692
+            raise ConanInvalidConfiguration(f"{self.ref}:replace_glog needs {self.ref}:enable_streams=True")
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    def layout(self):
+        cmake_layout(self, src_folder='src')
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.variables["LOGURU_USE_FMTLIB"] = self.options.with_fmt
+        tc.variables["LOGURU_VERBOSE_SCOPE_ENDINGS"] = self.options.verbose_scope_endings
+        tc.variables["LOGURU_REDEFINE_ASSERT"] = self.options.redefine_assert
+        tc.variables["LOGURU_WITH_STREAMS"] = self.options.enable_streams
+        tc.variables["LOGURU_WITH_FILEABS"] = self.options.enable_fileabs
+        tc.variables["LOGURU_REPLACE_GLOG"] = self.options.replace_glog
+        tc.variables["LOGURU_SCOPE_TEXT_SIZE"] = self.options.scope_text_size
+        tc.variables["LOGURU_SCOPE_TIME_PRECISION"] = self.options.scope_time_precision
+        tc.variables["LOGURU_FILENAME_WIDTH"] = self.options.filename_width
+        tc.variables["LOGURU_THREADNAME_WIDTH"] = self.options.threadname_width
+        if is_msvc(self) and self.options.shared:
+            tc.preprocessor_definitions["LOGURU_EXPORT"] = "__declspec(dllexport)"
+        tc.generate()
+
+        deps = CMakeDeps(self)
+        deps.generate()
+
+    def build(self):
+        cmake = CMake(self)
+        cmake.configure()
+        cmake.build()
+
+    @property
+    def _extracted_license(self):
+        tmp = load(self, os.path.join(self.source_folder, 'loguru.hpp'))
+        return tmp[2:tmp.find("# Inspiration", 0)].strip()
+
+    def package(self):
+        save(self, os.path.join(self.package_folder, 'licenses', 'LICENSE'), self._extracted_license)
+        cmake = CMake(self)
+        cmake.install()
+
+        rmdir(self, os.path.join(self.package_folder, "lib", "pkgconfig"))
+        rmdir(self, os.path.join(self.package_folder, "lib", "cmake"))
+        rm(self, "*.pdb", os.path.join(self.package_folder, "lib"))
+        rm(self, "*.pdb", os.path.join(self.package_folder, "bin"))
+
+    def package_info(self):
+        suffix = "d" if self.settings.build_type == "Debug" else ""
+        self.cpp_info.libs = [f"loguru{suffix}"]
+        self.cpp_info.includedirs = [os.path.join("include", "loguru")]
+        # https://github.com/emilk/loguru/blob/4adaa185883e3c04da25913579c451d3c32cfac1/CMakeLists.txt#L301
+        self.cpp_info.set_property("cmake_file_name", "loguru")
+        self.cpp_info.set_property("cmake_target_name", "loguru::loguru")
+
+        self.cpp_info.defines.append(f"LOGURU_USE_FMTLIB={self.options.with_fmt}")
+        self.cpp_info.defines.append(f"LOGURU_SCOPE_TEXT_SIZE={self.options.scope_text_size}")
+        self.cpp_info.defines.append(f"LOGURU_SCOPE_TIME_PRECISION={self.options.scope_time_precision}")
+        self.cpp_info.defines.append(f"LOGURU_FILENAME_WIDTH={self.options.filename_width}")
+        self.cpp_info.defines.append(f"LOGURU_THREADNAME_WIDTH={self.options.threadname_width}")
+        self.cpp_info.defines.append(f"LOGURU_VERBOSE_SCOPE_ENDINGS={self.options.verbose_scope_endings}")
+        self.cpp_info.defines.append(f"LOGURU_REDEFINE_ASSERT={self.options.redefine_assert}")
+        self.cpp_info.defines.append(f"LOGURU_WITH_STREAMS={self.options.enable_streams}")
+        self.cpp_info.defines.append(f"LOGURU_WITH_FILEABS={self.options.enable_fileabs}")
+        self.cpp_info.defines.append(f"LOGURU_REPLACE_GLOG={self.options.replace_glog}")
+
+        if self.settings.os in ["Linux", "FreeBSD"]:
+            self.cpp_info.system_libs = ["pthread", "dl", "m"]

recipes/loguru/all/test_package/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.8)
+project(test_package LANGUAGES CXX)
+
+find_package(loguru REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_link_libraries(${PROJECT_NAME} PUBLIC loguru::loguru)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_11)

recipes/loguru/all/test_package/conanfile.py

@@ -0,0 +1,31 @@
+import os
+from conan import ConanFile
+from conan.tools.cmake import CMake, CMakeToolchain
+from conan.tools.build import can_run
+from conan.tools.cmake import cmake_layout
+
+
+class TestPackageConan(ConanFile):
+    settings = "os", "compiler", "build_type", "arch"
+    generators = "CMakeDeps", "VirtualRunEnv"
+    test_type = "explicit"
+
+    def layout(self):
+        cmake_layout(self)
+
+    def requirements(self):
+        self.requires(self.tested_reference_str)
+
+    def generate(self):
+        tc = CMakeToolchain(self)
+        tc.generate()
+
+    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/loguru/all/test_package/test_package.cpp

@@ -0,0 +1,29 @@
+// Partially taken from: https://github.com/emilk/loguru/tree/master/loguru_example
+
+#include <iostream>
+#include <loguru.hpp>
+#include <chrono>
+#include <thread>
+
+inline void sleep_ms(int ms)
+{
+    VLOG_F(2, "Sleeping for %d ms", ms);
+    std::this_thread::sleep_for(std::chrono::milliseconds(ms));
+}
+
+inline void complex_calculation()
+{
+    LOG_SCOPE_F(INFO, "complex_calculation");
+    LOG_F(INFO, "Starting time machine...");
+    LOG_F(WARNING, "The flux capacitor is not getting enough power!");
+    LOG_F(INFO, "Lighting strike!");
+    VLOG_F(1, "Found 1.21 gigawatts...");
+}
+
+int main(int argc, char *argv[])
+{
+    loguru::init(argc, argv);
+    LOG_F(INFO, "Hello from main.cpp!");
+    complex_calculation();
+    LOG_F(INFO, "main function about to end!");
+}

recipes/loguru/all/test_v1_package/CMakeLists.txt

@@ -0,0 +1,8 @@
+cmake_minimum_required(VERSION 3.1)
+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/loguru/all/test_v1_package/conanfile.py

@@ -0,0 +1,18 @@
+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/loguru/config.yml

@@ -0,0 +1,3 @@
+versions:
+  "cci.20230406":
+    folder: all