modern-cpp-kafka: update the requirements & validate, fix the text

Author: kenneth-jia

recipes/modern-cpp-kafka/all/conanfile.py

@@ -14,13 +14,20 @@ class ModernCppKafkaConan(ConanFile):
     settings = "arch", "build_type", "compiler", "os"
     no_copy_source = True
 
+    def requirements(self):
+        self.requires("librdkafka/1.8.2")
+
     @property
     def _source_subfolder(self):
         return "source_subfolder"
 
     def source(self):
         tools.get(**self.conan_data["sources"][self.version], strip_root=True, destination=self._source_subfolder)
 
+    def validate(self):
+        if self.settings.compiler.get_safe("cppstd"):
+            tools.check_min_cppstd(self, 17)
+
     def package(self):
         self.copy(pattern="LICENSE", dst="licenses", src=self._source_subfolder)
         self.copy(pattern="*.h", dst="include", src=os.path.join(self._source_subfolder, "include"))

recipes/modern-cpp-kafka/all/test_package/CMakeLists.txt

@@ -6,8 +6,7 @@ conan_basic_setup()
 
 set(CMAKE_CXX_STANDARD 17)
 
-find_package(RdKafka REQUIRED CONFIG)
 find_package(ModernCppKafka REQUIRED CONFIG)
 
 add_executable(${PROJECT_NAME} test_package.cpp)
-target_link_libraries(${PROJECT_NAME} RdKafka::rdkafka ModernCppKafka::ModernCppKafka)
+target_link_libraries(${PROJECT_NAME} ModernCppKafka::ModernCppKafka)

recipes/modern-cpp-kafka/all/test_package/conanfile.py

@@ -1,19 +1,17 @@
+# pylint: skip-file
 from conans import ConanFile, CMake, tools
 import os
 
 class TestPackageConan(ConanFile):
     settings = "os", "arch", "compiler", "build_type"
     generators = "cmake", "cmake_find_package_multi"
 
-    def requirements(self):
-        self.requires("librdkafka/1.8.2")
-
     def build(self):
         cmake = CMake(self)
         cmake.configure()
         cmake.build()
 
     def test(self):
-        if not tools.cross_building(self):
+        if not tools.cross_building(self.settings):
             bin_path = os.path.join("bin", "test_package")
             self.run(bin_path, run_environment=True)