diff --git a/crack-0.4.2.gem b/crack-0.4.2.gem
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diff --git a/rubygem-crack.spec b/rubygem-crack.spec
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+%global gem_name crack
+
+Summary:             Really simple JSON and XML parsing, ripped from Merb and Rails
+Name:                rubygem-%{gem_name}
+Version:             0.4.2
+Release:             1
+License:             MIT
+URL:                 http://github.com/jnunemaker/crack
+Source0:             http://rubygems.org/gems/%{gem_name}-%{version}.gem
+# ruby package has just soft dependency on rubygem(bigdecimal), while
+# crack always requires it.
+Requires:            rubygem(bigdecimal)
+BuildRequires:       rubygems-devel rubygem(bigdecimal) rubygem(minitest) rubygem(safe_yaml)
+BuildArch:           noarch
+#BZ 781829
+Epoch:               1
+
+%description
+Really simple JSON and XML parsing, ripped from Merb and Rails.
+
+%package doc
+Summary:             Documentation for %{name}
+
+Requires:            %{name} = %{epoch}:%{version}-%{release}
+
+%description doc
+This package contains documentation for %{name}.
+
+%prep
+%setup -q -c -T
+%gem_install -n %{SOURCE0}
+
+%build
+
+%install
+mkdir -p %{buildroot}%{gem_dir}
+cp -a .%{gem_dir}/* \
+        %{buildroot}%{gem_dir}/
+
+# Fix non-standard-executable-perm rpmlint warning.
+chmod a+x %{buildroot}%{gem_instdir}/script/*
+
+
+%check
+pushd .%{gem_instdir}
+ruby -Ilib:test -e 'Dir.glob "./test/**/*_test.rb", &method(:require)'
+popd
+
+%files
+%dir %{gem_instdir}
+%exclude %{gem_instdir}/.*
+%doc %{gem_instdir}/LICENSE
+%doc %{gem_instdir}/README.md
+%doc %{gem_instdir}/History
+%{gem_libdir}
+%exclude %{gem_cache}
+%{gem_spec}
+
+%files doc
+%doc %{gem_docdir}
+%{gem_instdir}/Gemfile
+%{gem_instdir}/crack.gemspec
+%{gem_instdir}/script
+%{gem_instdir}/test
+
+%changelog
+* Mon Jul 27 2020 wangxiao <wangxiao65@huawei.com> - 0.4.2-1
+- package init
diff --git a/rubygem-crack.yaml b/rubygem-crack.yaml
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+version_control: github
+src_repo: jnunemaker/crack
+tag_prefix: "^v"
+seperator: "."