Give Lively Lint runner

GLLint is a Ruby gem that handles running linters against specific files (e.g. just the changed files from a branch). It leverages git, rubocop and eslint

This is particularly useful for large projects where you don't want to lint all the files in the project.

At Give Lively, we add a file to bin/lint and have it call this gem to lint with autocorrect.

GLLint also adds a way to create a yaml file with all the currently configured rubocop rules (.rubocop_rules.yml). This is done via bin/lint --write-rubocop-rules. This file is useful to compare what changes when updating Rubocop rules, changing gems or Ruby versions.

Add this line to your application's Gemfile:

gem 'gl_lint', require: false

And then execute:

$ bundle install

Or install it yourself as:

$ gem install gl_lint

Create a an executable bin/lint file with:

touch bin/lint && chmod +x bin/lint

Then add this to the file:

#!/usr/bin/env ruby
require 'rubygems'
require 'gl_lint'

GLLint.call_cli(app_root: File.expand_path('..', __dir__))

Then run bin/lint to lint your changes.

Alternatively, if your project doesn't have JavaScript, add linters: ['rubocop']

GLLint.call_cli(app_root: File.expand_path('..', __dir__),
                linters: ['rubocop'])