build the pocket.
$ uses_folder/make publish
install pocket of global
$ uses_folder/npm link
Use to compare:
$ gendiff <any_file>.json <any_file2>.json
$ gendiff <any_file>.yml <any_file2>.yml
$ gendiff <any_file>.ini <any_file2>.ini
Compare deep files:
$ gendiff <any_deep_file>.json <any_deep_file2>.json
Output format may be change:
$ gendiff --format plain <any_file>.json <any_file2>.json
Output JSON format:
$ gendiff --format json <any_file>.json <any_file2>.json