msgpuck 2.0 (new formula)

Closes #19116.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>

Formula/msgpuck.rb

@@ -0,0 +1,51 @@
+class Msgpuck < Formula
+  desc "A simple and efficient MsgPack binary serialization library"
+  homepage "https://rtsisyk.github.io/msgpuck/"
+  url "https://github.com/rtsisyk/msgpuck/archive/2.0.tar.gz"
+  sha256 "01e6aa55d4d52a5b19f7ce9a9845506d9ab3f5abcf844a75e880b8378150a63d"
+  head "https://github.com/rtsisyk/msgpuck.git"
+
+  depends_on "cmake" => :build
+
+  def install
+    system "cmake", ".", *std_cmake_args
+    system "make", "install"
+  end
+
+  test do
+    (testpath/"test.c").write <<-'EOS'.undent
+      /* Encode and decode an array */
+      #include <assert.h>
+      #include <msgpuck.h>
+
+      int main() {
+        const char *str = "hello world";
+
+        char buf[1024];
+        char *w = buf;
+        const char *pos = buf;
+
+        w = mp_encode_array(w, 4);
+        w = mp_encode_uint(w, 10);
+        w = mp_encode_str(w, str, strlen(str));
+        w = mp_encode_bool(w, true);
+        w = mp_encode_double(w, 3.1415);
+
+        assert(mp_typeof(*pos) == MP_ARRAY );
+        mp_decode_array(&pos);
+        assert(mp_typeof(*pos) == MP_UINT  );
+        mp_next(&pos);
+        assert(mp_typeof(*pos) == MP_STR   );
+        mp_next(&pos);
+        assert(mp_typeof(*pos) == MP_BOOL  );
+        mp_next(&pos);
+        assert(mp_typeof(*pos) == MP_DOUBLE);
+        mp_next(&pos);
+
+        return 0;
+      }
+    EOS
+    system ENV.cc, "-I#{include}", "-L#{lib}", "-lmsgpuck", "-o", "test", "test.c"
+    system "#{testpath}/test"
+  end
+end