diff --git a/nio4r-2.3.1.gem b/nio4r-2.3.1.gem
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index 0000000..1dcacab
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diff --git a/rubygem-nio4r.spec b/rubygem-nio4r.spec
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+%global gem_name nio4r
+%global libev_version 4.24
+Name:                rubygem-%{gem_name}
+Version:             2.3.1
+Release:             1
+Summary:             New IO for Ruby
+License:             MIT and (BSD or GPLv2+)
+URL:                 https://github.com/socketry/nio4r
+Source0:             https://rubygems.org/gems/nio4r-%{version}.gem
+BuildRequires:       ruby(release) rubygems-devel ruby-devel rubygem(rspec) gcc
+Provides:            bundled(libev) = %{libev_version}
+%description
+Cross-platform asynchronous I/O primitives for scalable network clients and
+servers. Inspired by the Java NIO API, but simplified for ease-of-use.
+
+%package doc
+Summary:             Documentation for %{name}
+Requires:            %{name} = %{version}-%{release}
+BuildArch:           noarch
+%description doc
+Documentation for %{name}.
+
+%prep
+%setup -q -n %{gem_name}-%{version}
+
+%build
+gem build ../%{gem_name}-%{version}.gemspec
+%global optflags %{?optflags} -fno-strict-aliasing
+%gem_install
+
+%install
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+        %{buildroot}%{gem_dir}/
+mkdir -p %{buildroot}%{gem_extdir_mri}
+cp -a .%{gem_extdir_mri}/{gem.build_complete,*.so} %{buildroot}%{gem_extdir_mri}/
+rm -rf %{buildroot}%{gem_instdir}/ext/
+
+%check
+pushd .%{gem_instdir}
+EV_VERSION_MAJOR=$(grep EV_VERSION_MAJOR ext/libev/ev.h | cut -d ' ' -f3)
+EV_VERSION_MINOR=$(grep EV_VERSION_MINOR ext/libev/ev.h | cut -d ' ' -f3)
+[ "${EV_VERSION_MAJOR}.${EV_VERSION_MINOR}" = '%{libev_version}' ]
+sed -i '/require "coveralls"/ s/^/#/' spec/spec_helper.rb
+sed -i '/Coveralls.wear!/ s/^/#/' spec/spec_helper.rb
+sed -i '/require "rspec\/retry"/ s/^/#/' spec/spec_helper.rb
+sed -i '/config.verbose_retry/ s/^/#/' spec/spec_helper.rb
+sed -i '/config.display_try_failure_messages/ s/^/#/' spec/spec_helper.rb
+sed -i 's/, retry: [0-9]\+//' spec/nio/selectables/tcp_socket_spec.rb
+sed -i 's/, retry: [0-9]\+//' spec/support/selectable_examples.rb
+sed -i '/TIMEOUT_PRECISION/ s/0.1/0.5/' spec/nio/selector_spec.rb
+sed -i '/^    it "wakes up if signaled to from another thread" do$/,/^    end$/ s/0.1/0.5/' \
+  spec/nio/selector_spec.rb
+sed -i '/"selects readable when the other end closes"/a\
+    skip' spec/support/selectable_examples.rb
+rspec -I$(dirs +1)%{gem_extdir_mri} spec
+popd
+
+%files
+%dir %{gem_instdir}
+%{gem_extdir_mri}
+%exclude %{gem_instdir}/.*
+%license %{gem_instdir}/LICENSE.txt
+%exclude %{gem_instdir}/appveyor.yml
+%{gem_libdir}
+%exclude %{gem_cache}
+%{gem_spec}
+
+%files doc
+%doc %{gem_docdir}
+%{gem_instdir}/Gemfile
+%doc %{gem_instdir}/README.md
+%doc %{gem_instdir}/CHANGES.md
+%{gem_instdir}/logo.png
+%{gem_instdir}/tasks
+%{gem_instdir}/Guardfile
+%{gem_instdir}/Rakefile
+%{gem_instdir}/examples
+%{gem_instdir}/nio4r.gemspec
+%{gem_instdir}/spec
+
+%changelog
+* Wed Aug 12 2020 yanan li <liyanan032@huawei.com> - 2.3.1-1
+- Package init
diff --git a/rubygem-nio4r.yaml b/rubygem-nio4r.yaml
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+git_url: https://github.com/socketry/nio4r.git
+version_control: github
+src_repo: socketry/nio4r
+tag_prefix: "^v"
+seperator: "."