diff --git a/crass-1.0.4.gem b/crass-1.0.4.gem
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diff --git a/rubygem-crass.spec b/rubygem-crass.spec
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+%global gem_name crass
+Name:                rubygem-%{gem_name}
+Version:             1.0.4
+Release:             1
+Summary:             CSS parser based on the CSS Syntax Level 3 spec
+License:             MIT
+URL:                 https://github.com/rgrove/crass/
+Source0:             https://rubygems.org/gems/%{gem_name}-%{version}.gem
+BuildRequires:       ruby(release) rubygems-devel ruby >= 1.9.2 rubygem(minitest)
+BuildArch:           noarch
+%description
+Crass is a pure Ruby CSS parser based on the CSS Syntax Level 3 spec.
+
+%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
+%gem_install
+
+%install
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+        %{buildroot}%{gem_dir}/
+
+%check
+pushd .%{gem_instdir}
+ruby -e 'Dir.glob "./test/**/test_*.rb", &method(:require)'
+popd
+
+%files
+%dir %{gem_instdir}
+%exclude %{gem_instdir}/.*
+%license %{gem_instdir}/LICENSE
+%{gem_libdir}
+%exclude %{gem_cache}
+%{gem_spec}
+%exclude %{gem_instdir}/test
+
+%files doc
+%doc %{gem_docdir}
+%{gem_instdir}/Gemfile
+%doc %{gem_instdir}/HISTORY.md
+%doc %{gem_instdir}/README.md
+%{gem_instdir}/Rakefile
+%{gem_instdir}/%{gem_name}.gemspec
+
+%changelog
+* Fri Aug 7 2020 yanan li <liyanan032@huawei.com> - 1.0.4-1
+- Package init
diff --git a/rubygem-crass.yaml b/rubygem-crass.yaml
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+git_url: https://github.com/rgrove/crass.git
+version_control: github
+src_repo: rgrove/crass
+tag_prefix: "^v"
+seperator: "."