113 lines
3.8 KiB
Ruby

# typed: false
# frozen_string_literal: true
require "rubocops/shared/helper_functions"
module RuboCop
module Cop
# This module performs common checks the `desc` field in both formulae and casks.
#
# @api private
module DescHelper
include HelperFunctions
MAX_DESC_LENGTH = 80
VALID_LOWERCASE_WORDS = %w[
iOS
iPhone
macOS
].freeze
def audit_desc(type, name, desc_call)
# Check if a desc is present.
if desc_call.nil?
problem "#{type.to_s.capitalize} should have a desc (Description)."
return
end
@offensive_node = desc_call
@offense_source_range = desc_call.source_range
desc = desc_call.first_argument
# Check if the desc is empty.
desc_length = string_content(desc).length
if desc_length.zero?
problem "The desc (description) should not be an empty string."
return
end
# Check the desc for leading whitespace.
problem "Description shouldn't have leading spaces." if regex_match_group(desc, /^\s+/)
# Check the desc for trailing whitespace.
problem "Description shouldn't have trailing spaces." if regex_match_group(desc, /\s+$/)
# Check if "command-line" is spelled incorrectly in the desc.
if match = regex_match_group(desc, /(command ?line)/i)
c = match.to_s[0]
problem "Description should use \"#{c}ommand-line\" instead of \"#{match}\"."
end
# Check if the desc starts with an article.
problem "Description shouldn't start with an article." if regex_match_group(desc, /^(the|an?)(?=\s)/i)
# Check if invalid lowercase words are at the start of a desc.
if !VALID_LOWERCASE_WORDS.include?(string_content(desc).split.first) &&
regex_match_group(desc, /^[a-z]/)
problem "Description should start with a capital letter."
end
# Check if the desc starts with the formula's or cask's name.
name_regex = name.delete("-").split("").join('[\s\-]?')
problem "Description shouldn't start with the #{type} name." if regex_match_group(desc, /^#{name_regex}\b/i)
if type == :cask &&
(match = regex_match_group(desc, /\b(macOS|Mac( ?OS( ?X)?)?|OS ?X)(?! virtual machines?)\b/i)) &&
match[1] != "MAC"
problem "Description shouldn't contain the platform."
end
# Check if a full stop is used at the end of a desc (apart from in the case of "etc.").
if regex_match_group(desc, /\.$/) && !string_content(desc).end_with?("etc.")
problem "Description shouldn't end with a full stop."
end
# Check if the desc length exceeds maximum length.
return if desc_length <= MAX_DESC_LENGTH
problem "Description is too long. It should be less than #{MAX_DESC_LENGTH} characters. " \
"The current length is #{desc_length}."
end
def autocorrect_desc(node, name)
lambda do |corrector|
/\A(?<quote>["'])(?<correction>.*)(?:\k<quote>)\Z/ =~ node.source
next if correction.nil?
correction.gsub!(/^\s+/, "")
correction.gsub!(/\s+$/, "")
correction.sub!(/^(the|an?)\s+/i, "")
first_word = correction.split.first
unless VALID_LOWERCASE_WORDS.include?(first_word)
first_char = first_word.to_s[0]
correction[0] = first_char.upcase if first_char
end
correction.gsub!(/(ommand ?line)/i, "ommand-line")
correction.gsub!(/(^|[^a-z])#{name}([^a-z]|$)/i, "\\1\\2")
correction.gsub!(/^\s+/, "")
correction.gsub!(/\s+$/, "")
correction.gsub!(/\.$/, "")
corrector.replace(node.source_range, "#{quote}#{correction}#{quote}")
end
end
end
end
end