(#11719) mdns: setup CMake targets + modernize

* mdns: setup CMake targets + modernize

noticed e092f068b9/CMakeLists.txt (L33) was added

* fix bad copy paste

* remove older unofficial release

they dont follow `cci.` notation they are so old

* Apply suggestions from code review

Co-authored-by: SpaceIm <30052553+SpaceIm@users.noreply.github.com>

* `package_id` goes before `source`

Co-authored-by: SpaceIm <30052553+SpaceIm@users.noreply.github.com>

recipes/mdns/all/conandata.yml

@@ -1,13 +1,4 @@
 sources:
-  "20200130":
-    sha256: 5f327b56d932ed5c1a28b7b1b1f528ddfbf69cb45bc4a8d38301ab85116e4b0e
-    url: https://github.com/mjansson/mdns/archive/0f75def961433102dc4848564c1a865f473dfaed.zip
-  "20200331":
-    sha256: 98861150179942cd6975b207048939a491ab4bb6c7291a3a34dedc80082b3ba9
-    url: https://github.com/mjansson/mdns/archive/4f7f7942bd10eb3d67af48b5233cb84283d9639c.zip
-  "20200424":
-    sha256: 505aac658feb45bea65b2ab00a6abf1b14c2aaaa971456d6e3ba58b75a543d47
-    url: https://github.com/mjansson/mdns/archive/0b9a4de6c5132679364e47c0f9a7a37af9d2ce47.zip
   "1.0":
     sha256: e06ed954b4705f0e48f3e6bd44b75c115ee03f745c62394ee615f466e44e9373
     url: https://github.com/mjansson/mdns/archive/1.0.tar.gz

recipes/mdns/all/conanfile.py

@@ -1,6 +1,7 @@
-import os, glob
+import os
 from conans import CMake, ConanFile, tools
 
+required_conan_version = ">=1.43.0"
 
 class MdnsConan(ConanFile):
     name = "mdns"
@@ -8,18 +9,20 @@ class MdnsConan(ConanFile):
     homepage = "https://github.com/mjansson/mdns"
     url = "https://github.com/conan-io/conan-center-index"
     description = "Public domain mDNS/DNS-SD library in C"
-    topics = ("conan", "mdns", "dns", "dns-sd")
-    settings = "os"
+    topics = ("mdns", "dns", "dns-sd", "multicast discovery", "discovery")
+    settings = "os", "compiler", "build_type", "arch"
     no_copy_source = True
 
     @property
     def _source_subfolder(self):
         return "source_subfolder"
 
+    def package_id(self):
+        self.info.header_only()
+
     def source(self):
-        tools.get(**self.conan_data["sources"][self.version])
-        extracted_dir = glob.glob('mdns-*/')[0]
-        os.rename(extracted_dir, self._source_subfolder)
+        tools.get(**self.conan_data["sources"][self.version],
+                  destination=self._source_subfolder, strip_root=True)
 
     def package(self):
         self.copy("LICENSE", dst="licenses", src=self._source_subfolder)
@@ -31,5 +34,5 @@ class MdnsConan(ConanFile):
         if str(self.settings.os) in ["Linux", "Android"]:
             self.cpp_info.system_libs.append('pthread')
 
-    def package_id(self):
-        self.info.header_only()
+        self.cpp_info.set_property("cmake_file_name", "mdns")
+        self.cpp_info.set_property("cmake_target_name", "mdns::mdns")

recipes/mdns/config.yml

@@ -1,10 +1,4 @@
 versions:
-  "20200130":
-    folder: "all"
-  "20200331":
-    folder: "all"
-  "20200424":
-    folder: "all"
   "1.0":
     folder: "all"
   "1.1":