Guardfile

# A sample Guardfile
# More info at https://github.com/guard/guard#readme

## Uncomment and set this to only include directories you want to watch
# directories %w(app lib config test spec features) \
#  .select{|d| Dir.exist?(d) ? d : UI.warning("Directory #{d} does not exist")}

## Note: if you are using the `directories` clause above and you are not
## watching the project directory ('.'), then you will want to move
## the Guardfile to a watched dir and symlink it back, e.g.
#
#  $ mkdir config
#  $ mv Guardfile config/
#  $ ln -s config/Guardfile .
#
# and, you'll have to watch "config/Guardfile" instead of "Guardfile"

# Ignore unneeded folders to prevent high CPU load
# https://stackoverflow.com/a/20543493/57950
ignore(
  [
    %r{^bin/*},
    %r{^db/*},
    %r{^log/*},
    %r{^public/*},
    %r{^tmp/*},
    %r{^node_modules/*},
  ],
)

# NOTE: The cmd option is now required due to the increasing number of ways
#       rspec may be run, below are examples of the most common uses.
#  * bundler: 'bundle exec rspec'
#  * bundler binstubs: 'bin/rspec'
#  * spring: 'bin/rspec' (This will use spring if running and you have
#                          installed the spring binstubs per the docs)
#  * zeus: 'zeus rspec' (requires the server to be started separately)
#  * 'just' rspec: 'rspec'

guard :rspec, cmd: 'bin/rspec --colour --format documentation --fail-fast' do
  directories(%w[app config lib spec])

  require 'guard/rspec/dsl'
  dsl = Guard::RSpec::Dsl.new(self)

  # Feel free to open issues for suggestions and improvements

  # RSpec files
  rspec = dsl.rspec
  watch(rspec.spec_helper) { rspec.spec_dir }
  watch(rspec.spec_support) { rspec.spec_dir }
  watch(rspec.spec_files)

  # Ruby files
  ruby = dsl.ruby
  dsl.watch_spec_files_for(ruby.lib_files)

  # Rails files
  rails = dsl.rails(view_extensions: %w[erb])

  dsl.watch_spec_files_for(rails.app_files)
  dsl.watch_spec_files_for(rails.views)

  watch(rails.controllers) do |m|
    [
      rspec.spec.call("routing/#{m[1]}_routing"),
      rspec.spec.call("controllers/#{m[1]}_controller"),
      rspec.spec.call("requests/#{m[1]}_request"),
      rspec.spec.call("system/#{m[1]}"),
    ]
  end

  # Rails config changes
  watch(rails.spec_helper) { rspec.spec_dir }
  watch(rails.routes) { "#{rspec.spec_dir}/routing" }
  watch(rails.app_controller) { "#{rspec.spec_dir}/controllers" }
end