ruboclean puts .rubocop.yml into order. It groups the configuration into three groups:

1. "Base"-configuration like plugins, inherit_from, etc.
2. Namespaces
3. Namespace/Cops

Finally it orders the configurations alphabetically within these groups.

Rails/ShortI18n:
  Enabled: true

Layout/LineLength:
  Max: 120

Rails:
  Enabled: true

AllCops:
  Exclude:
  - path/file_exists.rb
  - path_with_files/**/*
  - path/file_does_not_exist.rb # This entry will be removed if the file doesn't exist. Skip with --preserve-paths option.
  - path_without_files/**/* # Will be removed if no files within pattern exist. Skip with --preserve-paths option.

# Preceding comments will be removed unless the --preserve-comments option is used.
plugins:
- rubocop-rails # Inline comments will always be removed.

---

plugins:
- rubocop-rails

AllCops:
  Exclude:
  - path/file_exists.rb
  - path_with_files/**/*

Rails:
  Enabled: true

Layout/LineLength:
  Max: 120

Rails/ShortI18n:
  Enabled: true

Add this line to your application's Gemfile:

gem "ruboclean", require: false

And then execute:

bundle install

Or install it yourself as:

gem install ruboclean

ruboclean [input] \
  [--stdin] \
  [--output=/path/to/file.yml] \
  [--silent] \
  [--preserve-comments] \
  [--preserve-paths] \
  [--verify]

Can be a directory that contains a .rubocop.yml, or a path to a .rubocop.yml directly. Defaults to the current working directory.

ruboclean                             # uses `.rubocop.yml` of current working directory
ruboclean /path/to/dir                # uses `.rubocop.yml` of /path/to/dir
ruboclean /path/to/dir/.rubocop.yml

It's possible to read from STDIN, for example:

echo "SomeConfig: True" | ruboclean --stdin

Using STDIN will automatically set the output to STDOUT. You can use the --output flag to override this.

Also, if you use STDIN, your current working directory should be the root directory of your project, so that the cleanup of unused paths/references (see --preserve-paths) works properly. If your current working directory is something else, you have to explicitly provide the project's root directory using the input argument.

echo "SomeConfig: True" | ruboclean /path/to/the/project/directory --stdin

Output path where the result is written to. Can be absolute or relative to the current working directory. --output=STDOUT prints it to STDOUT and not to a file, and silences all logging (see --silent).

ruboclean --output=/absolute/path.yml
ruboclean --output=relative/path.yml    # relative to current working directory
ruboclean --output=STDOUT               # does not write anything to a file

Suppress any log output displayed on the screen when executing the command. Using --output=STDOUT also forces this.

Preserves preceding comments for each top-level entry in the configuration. Inline comments are not preserved.

See main example above for explanation.

Skips the path cleanup that are applied against Include: and Exclude: configurations.

See main example above for explanation.

Executes in dry-run mode. Exits with 1 if changes are needed, otherwise 0.

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/lxxxvi/ruboclean. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Ruboclean project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.