libosmium: new recipe

recipes/libosmium/all/conandata.yml

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+sources:
+  "2.20.0":
+    url: "https://github.com/osmcode/libosmium/archive/v2.20.0.tar.gz"
+    sha256: "3d3e0873c6aaabb3b2ef4283896bebf233334891a7a49f4712af30ca6ed72477"

recipes/libosmium/all/conanfile.py

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+import os
+
+from conan import ConanFile
+from conan.tools.build import check_min_cppstd
+from conan.tools.cmake import cmake_layout
+from conan.tools.files import copy, get
+from conan.tools.microsoft import is_msvc
+
+required_conan_version = ">=1.53.0"
+
+class LibosmiumConan(ConanFile):
+    name = "libosmium"
+    description = "A fast and flexible C++ library for working with OpenStreetMap data"
+    license = "BSL-1.0"
+    homepage = "https://osmcode.org/libosmium/"
+    url = "https://github.com/conan-io/conan-center-index"
+    topics = ("openstreetmap", "osm", "basemap", "gis", "geography", "header-only")
+
+    package_type = "header-library"
+    settings = "os", "arch", "compiler", "build_type"
+    options = {
+        "pbf": [True, False],
+        "xml": [True, False],
+        "geos": [True, False],
+        "gdal": [True, False],
+        "proj": [True, False],
+        "lz4": [True, False],
+    }
+    default_options = {
+        "pbf": True,
+        "xml": True,
+        "geos": True,
+        "gdal": False,
+        "proj": True,
+        "lz4": True,
+    }
+    options_description = {
+        # https://github.com/osmcode/libosmium/blob/v2.20.0/cmake/FindOsmium.cmake#L30-L37
+        "pbf": "include libraries needed for PBF input and output",
+        "xml": "include libraries needed for XML input and output",
+        "geos": "include if you want to use any of the GEOS functions",
+        "gdal": "include if you want to use any of the OGR functions",
+        "proj": "include if you want to use any of the Proj.4 functions",
+        "lz4": "include support for LZ4 compression of PBF files",
+    }
+
+    def export_sources(self):
+        copy(self, "libosmium-official-vars.cmake", self.recipe_folder, os.path.join(self.export_sources_folder, "src"))
+
+    def layout(self):
+        cmake_layout(self, src_folder="src")
+
+    def requirements(self):
+        if self.options.pbf:
+            self.requires("protozero/1.7.1")
+        if self.options.xml:
+            self.requires("expat/[>=2.6.2 <3]")
+            self.requires("bzip2/1.0.8")
+        if self.options.pbf or self.options.xml:
+            self.requires("zlib/[>=1.2.11 <2]")
+        if self.options.geos:
+            self.requires("geos/3.12.0")
+        if self.options.gdal:
+            self.requires("gdal/3.8.3")
+        if self.options.proj:
+            self.requires("proj/9.3.1")
+        if self.options.lz4:
+            self.requires("lz4/1.9.4")
+
+    def package_id(self):
+        self.info.clear()
+
+    def validate(self):
+        if self.settings.compiler.get_safe("cppstd"):
+            check_min_cppstd(self, 11)
+
+    def source(self):
+        get(self, **self.conan_data["sources"][self.version], strip_root=True)
+
+    @property
+    def _modules_rel_dir(self):
+        return os.path.join("lib", "cmake", "libosmium")
+
+    @property
+    def _module_rel_path(self):
+        return os.path.join(self._modules_rel_dir, "libosmium-official-vars.cmake")
+
+    def package(self):
+        copy(self, "LICENSE", self.source_folder, os.path.join(self.package_folder, "licenses"))
+        copy(self, "*", os.path.join(self.source_folder, "include"), os.path.join(self.package_folder, "include"))
+        copy(self, "libosmium-official-vars.cmake", self.source_folder, os.path.join(self.package_folder, self._modules_rel_dir))
+
+    def package_info(self):
+        # https://github.com/osmcode/libosmium/blob/master/cmake/FindOsmium.cmake
+        self.cpp_info.set_property("cmake_find_mode", "both")
+        self.cpp_info.set_property("cmake_file_name", "Osmium")
+
+        self.cpp_info.builddirs.append(os.path.join("lib", "cmake", "libosmium"))
+        self.cpp_info.set_property("cmake_build_modules", [self._module_rel_path])
+
+        def _add_component(name, reqs, threads=False):
+            component = self.cpp_info.components[name]
+            component.bindirs = []
+            component.libdirs = []
+            component.requires = reqs
+            if threads and self.settings.os in ["Linux", "FreeBSD"]:
+                component.system_libs.append("pthread")
+            component.defines = ["_LARGEFILE_SOURCE", "_FILE_OFFSET_BITS=64"]
+            if is_msvc(self):
+                # https://github.com/osmcode/libosmium/blob/v2.20.0/cmake/FindOsmium.cmake#L316-L337
+                component.cxxflags.extend(["-wd4996", "-wd4068", "-wd4715", "-wd4351", "-wd4503"])
+                component.defines.extend(["NOMINMAX", "WIN32_LEAN_AND_MEAN", "_CRT_SECURE_NO_WARNINGS"])
+
+        if self.options.pbf:
+            _add_component("pbf", ["protozero::protozero", "zlib::zlib"], threads=True)
+            if self.options.lz4:
+                self.cpp_info.components["pbf"].requires.append("lz4")
+        if self.options.xml:
+            _add_component("xml", ["expat::expat", "bzip2::bzip2", "zlib::zlib"], threads=True)
+        if self.options.pbf and self.options.xml:
+            _add_component("io", ["pbf", "xml"])
+        if self.options.geos:
+            _add_component("geos", ["geos::geos"])
+        if self.options.gdal:
+            _add_component("gdal", ["gdal::gdal"])
+        if self.options.proj:
+            _add_component("proj", ["proj::proj"])
+        if self.options.lz4:
+            _add_component("lz4", ["lz4::lz4"])
+            self.cpp_info.components["io"].defines.append("OSMIUM_WITH_LZ4")
+
+        # TODO: to remove in conan v2 once cmake_find_package_* generators removed
+        self.cpp_info.filenames["cmake_find_package"] = "Osmium"
+        self.cpp_info.filenames["cmake_find_package_multi"] = "Osmium"
+        self.cpp_info.build_modules["cmake_find_package"] = [self._module_rel_path]
+        self.cpp_info.build_modules["cmake_find_package_multi"] = [self._module_rel_path]

recipes/libosmium/all/libosmium-official-vars.cmake

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+# https://github.com/osmcode/libosmium/blob/v2.20.0/cmake/FindOsmium.cmake
+
+set(OSMIUM_FOUND TRUE)
+set(OSMIUM_INCLUDE_DIRS ${${CMAKE_FIND_PACKAGE_NAME}_INCLUDE_DIR})
+set(OSMIUM_LIBRARIES ${${CMAKE_FIND_PACKAGE_NAME}_LIBRARIES})
+set(OSMIUM_VERSION ${${CMAKE_FIND_PACKAGE_NAME}_VERSION})
+
+#    OSMIUM_XML_LIBRARIES - Libraries needed for XML I/O.
+set(OSMIUM_XML_LIBRARIES libosmium::xml)
+#    OSMIUM_PBF_LIBRARIES - Libraries needed for PBF I/O.
+set(OSMIUM_PBF_LIBRARIES libosmium::pbf)
+#    OSMIUM_IO_LIBRARIES  - Libraries needed for XML or PBF I/O.
+set(OSMIUM_IO_LIBRARIES libosmium::io)

recipes/libosmium/all/test_package/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.15)
+project(test_package LANGUAGES CXX)
+
+find_package(Osmium REQUIRED CONFIG)
+
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_include_directories(${PROJECT_NAME} PRIVATE ${OSMIUM_INCLUDE_DIRS})
+target_link_libraries(${PROJECT_NAME} PRIVATE ${OSMIUM_LIBRARIES})
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_11)

recipes/libosmium/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
+
+
+# It will become the standard on Conan 2.x
+class TestPackageConan(ConanFile):
+    settings = "os", "arch", "compiler", "build_type"
+    generators = "CMakeDeps", "CMakeToolchain", "VirtualRunEnv"
+    test_type = "explicit"
+
+    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 can_run(self):
+            bin_path = os.path.join(self.cpp.build.bindir, "test_package")
+            self.run(bin_path, env="conanrun")

recipes/libosmium/all/test_package/test_package.cpp

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+#include <osmium/io/any_input.hpp>
+
+#include <iostream>
+
+int main() {
+    try {
+        const osmium::io::File input_file{"missing_file.pbf"};
+        osmium::io::Reader reader{input_file};
+    } catch (const std::exception& e) {
+        std::cerr << e.what() << '\n';
+        return 0;
+    }
+}

recipes/libosmium/config.yml

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+versions:
+  "2.20.0":
+    folder: all