Deduplicate top-level YAML arrays.

gem install dorian-yaml-uniq

Also included in the aggregate gem:

gem install dorian

yaml-uniq [yaml ...] [file ...]

Run yaml-uniq -h for generated option details and yaml-uniq -v for the installed version.

• Non-array YAML is parsed and printed back unchanged.

yaml-uniq '- 1' '- 2' '- 1'