diff --git a/contracts-0.16.0.gem b/contracts-0.16.0.gem
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diff --git a/rubygem-contracts.spec b/rubygem-contracts.spec
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+%global	gem_name	contracts
+Name:		rubygem-%{gem_name}
+Version:	0.16.0
+Release:	1
+Summary:	Contracts for Ruby
+License:	BSD
+URL:		http://egonschiele.github.io/contracts.ruby/
+Source0:	https://rubygems.org/gems/%{gem_name}-%{version}.gem
+BuildRequires:  ruby(release) 	rubygems-devel 	ruby 	rubygem(rspec) >= 3
+BuildArch:      noarch
+%description
+This library provides contracts for Ruby. Contracts let you clearly express
+how your code behaves, and free you from writing tons of boilerplate,
+defensive code.
+
+%package	doc
+Summary:	Documentation for %{name}
+Requires:       %{name} = %{version}-%{release}
+BuildArch:	noarch
+%description    doc
+Documentation for %{name}.
+
+%prep
+gem unpack %{SOURCE0}
+%setup -q -D -T -n  %{gem_name}-%{version}
+gem spec %{SOURCE0} -l --ruby > %{gem_name}.gemspec
+
+%build
+gem build %{gem_name}.gemspec
+%gem_install
+
+%install
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+	%{buildroot}%{gem_dir}/
+rm -f %{buildroot}%{gem_cache}
+pushd %{buildroot}%{gem_instdir}
+rm -rf \
+	.[^.]* \
+	Gemfile \
+	Rakefile \
+	*gemspec \
+	*yml \
+	features/ \
+	script/ \
+	spec/ \
+	%{nil}
+
+%check
+pushd .%{gem_instdir}
+rspec spec/
+popd
+
+%files
+%dir	%{gem_instdir}
+%license	%{gem_instdir}/LICENSE
+%doc		%{gem_instdir}/CHANGELOG.markdown
+%doc		%{gem_instdir}/README.md
+%doc		%{gem_instdir}/TODO.markdown
+%doc		%{gem_instdir}/TUTORIAL.md
+%{gem_libdir}
+%{gem_spec}
+
+%files doc
+%doc %{gem_docdir}
+%{gem_instdir}/benchmarks/
+
+%changelog
+* Tue Aug 18 2020 wanglin <wanglin175@huawei.com> - 0.16.0-1
+- package init
diff --git a/rubygem-contracts.yaml b/rubygem-contracts.yaml
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+++ b/rubygem-contracts.yaml
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+version_control: github
+src_repo: egonSchiele/contracts.ruby
+tag_prefix: "^v"
+separator: "."