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Versions: 64
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Contents
# frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# A Gem's requirements should be listed only once in a Gemfile.
# @example
# # bad
# gem 'rubocop'
# gem 'rubocop'
#
# # bad
# group :development do
# gem 'rubocop'
# end
#
# group :test do
# gem 'rubocop'
# end
#
# # good
# group :development, :test do
# gem 'rubocop'
# end
#
# # good
# gem 'rubocop', groups: [:development, :test]
class DuplicatedGem < Cop
include RangeHelp
MSG = 'Gem `%<gem_name>s` requirements already given on line '\
'%<line_of_first_occurrence>d of the Gemfile.'
def investigate(processed_source)
return if processed_source.blank?
duplicated_gem_nodes.each do |nodes|
nodes[1..-1].each do |node|
register_offense(
node,
node.first_argument.to_a.first,
nodes.first.first_line
)
end
end
end
private
def_node_search :gem_declarations, '(send nil? :gem str ...)'
def duplicated_gem_nodes
gem_declarations(processed_source.ast)
.group_by(&:first_argument)
.values
.select { |nodes| nodes.size > 1 }
end
def register_offense(node, gem_name, line_of_first_occurrence)
line_range = node.loc.column...node.loc.last_column
offense_location =
source_range(processed_source.buffer, node.first_line, line_range)
message = format(
MSG,
gem_name: gem_name,
line_of_first_occurrence: line_of_first_occurrence
)
add_offense(node, location: offense_location, message: message)
end
end
end
end
end
Version data entries
64 entries across 44 versions & 5 rubygems