+ -not -path "*/usr/lib/libruby.so" \
+ -not -name "*test_case.rb" \
+ -not -name "*.rdoc" \
+ -not -name "*.doc" \
+ -not -name "*.md" \
+ -not -name "*.txt" \
+ -not -name "*.travis.yml" \
+ -not -regex ".*/usr/lib/ruby/gems/[^/]*/gems/[^/]*/benchmark/.*" \
+ -not -regex ".*/usr/lib/ruby/gems/[^/]*/gems/[^/]*/evaluation/.*" \
+ -not -regex ".*/usr/lib/ruby/gems/[^/]*/gems/[^/]*/sample/.*" \
+ -not -regex ".*/usr/lib/ruby/gems/[^/]*/gems/[^/]*/test/.*" \
+ -not -regex ".*/usr/lib/ruby/gems/[^/]*/gems/[^/]*/doc/.*" \
+ -not -type d \