guard-rubocop allows you to automatically check Ruby code style with RuboCop when files are modified.
Tested on MRI 2.4 - 2.7.
Please make sure to have Guard installed before continue.
guard-rubocop to your
group :development do gem 'guard-rubocop' end
and then execute:
$ bundle install
or install it yourself as:
$ gem install guard-rubocop
Add the default Guard::RuboCop definition to your
Guardfile by running:
$ guard init rubocop
Please read the Guard usage documentation.
You can pass some options in
Guardfile like the following example:
guard :rubocop, all_on_start: false, cli: ['--format', 'clang', '--rails'] do # ... end
all_on_start: true # Check all files at Guard startup. # default: true cli: '--rails' # Pass arbitrary RuboCop CLI arguments. # An array or string is acceptable. # default: nil hide_stdout: false # Do not display console output (in case outputting to file). # default: false keep_failed: true # Keep failed files until they pass. # default: true notification: :failed # Display Growl notification after each run. # true - Always notify # false - Never notify # :failed - Notify only when failed # default: :failed launchy: nil # Filename to launch using Launchy after RuboCop runs. # default: nil
Using Launchy to view results
guard-rubocop can be configured to launch a results file in lieu of or in addition to outputing results to the terminal. Configure your Guardfile with the launchy option:
guard :rubocop, cli: %w(--format fuubar --format html -o ./tmp/rubocop_results.html), launchy: './tmp/rubocop_results.html' do # ... end
If you're using a testing Guard plugin such as
guard-rspec together with
guard-rubocop in the TDD way (the red-green-refactor cycle),
you might be uncomfortable with the offense reports from RuboCop in the red-green phase:
- In the red-green phase, you're not necessarily required to write clean code – you just focus writing code to pass the test. It means, in this phase,
guard-rspecshould be run but
- In the refactor phase, you're required to make the code clean while keeping the test passing. In this phase, both
guard-rubocopshould be run.
In this case, you may consider making use of the group method in your
# This group allows to skip running RuboCop when RSpec failed. group :red_green_refactor, halt_on_fail: true do guard :rspec do # ... end guard :rubocop do # ... end end
Note: You need to use
guard-rspec 4.2.3 or later due to a bug where it unintentionally fails when there are no spec files to be run.
- Fork it
- Create your feature branch (
git checkout -b my-new-feature)
- Commit your changes (
git commit -am 'Add some feature')
- Push to the branch (
git push origin my-new-feature)
- Create new Pull Request
Copyright (c) 2013–2020 Yuji Nakayama
See the LICENSE.txt for details.