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# frozen_string_literal: true
module RuboCop
module Cop
module Style
# rubocop:disable Lint/RedundantCopDisableDirective -- For examples
# Checks that rubocop inline disabling is formatted according
# to guidelines.
# See: https://docs.gitlab.com/ee/development/rubocop_development_guide.html#disabling-rules-inline,
# https://gitlab.com/gitlab-org/gitlab/-/issues/428762
#
# # bad
# # rubocop:disable Some/Cop, Another/Cop
#
# # good
# # rubocop:disable Some/Cop, Another/Cop -- Some reason
#
# rubocop:enable Lint/RedundantCopDisableDirective
class InlineDisableAnnotation < RuboCop::Cop::Base
include RangeHelp
COP_DISABLE = '#\s*rubocop\s*:\s*(?:disable|todo)\s+'
BAD_DISABLE = %r{\A(?<line>(?<disabling>#{COP_DISABLE}(?:[\w/]+(?:\s*,\s*[\w/]+)*))\s*)(?!.*\s*--\s\S).*}
COP_DISABLE_LINE = /\A(?<line>#{COP_DISABLE}.*)\Z/
MSG = <<~MESSAGE
Inline disabling a cop needs to follow the format of `%{disable} -- Some reason`.
See https://docs.gitlab.com/ee/development/rubocop_development_guide.html#disabling-rules-inline.
MESSAGE
def on_new_investigation
processed_source.comments.each do |comment|
candidate_match = COP_DISABLE_LINE.match(comment.text)
# Pre-filter to ensure we are on a comment that is for a rubocop disabling
next unless candidate_match
bad_match = BAD_DISABLE.match(comment.text)
# Only the badly formatted lines make it past this.
next unless bad_match
add_offense(
source_range(
processed_source.buffer, comment.loc.line, comment.loc.column, candidate_match[:line].length
),
message: format(MSG, disable: bad_match[:disabling])
)
end
end
end
end
end
end
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