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Versions: 8
Compression:
Stored size: 1.71 KB
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
MSG = 'Gem `%s` requirements already given on line %d ' \
'of the Gemfile.'.freeze
def investigate(processed_source)
return unless processed_source.ast
duplicated_gem_nodes.each do |nodes|
nodes[1..-1].each do |node|
offense(
node,
node.method_args.first.to_a.first,
nodes.first.loc.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 { |e| e.method_args.first }
.keep_if { |_, nodes| nodes.length > 1 }
.values
end
def offense(node, gem_name, line_of_first_occurence)
line_range = node.loc.column...node.loc.last_column
add_offense(
node,
source_range(processed_source.buffer, node.loc.line, line_range),
format(MSG, gem_name, line_of_first_occurence)
)
end
end
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems