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# frozen_string_literal: true
require_relative 'title_linting'
module Tooling
module Danger
class BaseLinter
MIN_SUBJECT_WORDS_COUNT = 3
MAX_LINE_LENGTH = 72
attr_reader :commit, :problems
def self.problems_mapping
{
subject_too_short: "The %s must contain at least #{MIN_SUBJECT_WORDS_COUNT} words",
subject_too_long: "The %s may not be longer than #{MAX_LINE_LENGTH} characters",
subject_starts_with_lowercase: "The %s must start with a capital letter",
subject_ends_with_a_period: "The %s must not end with a period"
}
end
def self.subject_description
'commit subject'
end
def initialize(commit)
@commit = commit
@problems = {}
end
def failed?
problems.any?
end
def add_problem(problem_key, *args)
@problems[problem_key] = sprintf(self.class.problems_mapping[problem_key], *args)
end
def lint_subject
if subject_too_short?
add_problem(:subject_too_short, self.class.subject_description)
end
if subject_too_long?
add_problem(:subject_too_long, self.class.subject_description)
end
if subject_starts_with_lowercase?
add_problem(:subject_starts_with_lowercase, self.class.subject_description)
end
if subject_ends_with_a_period?
add_problem(:subject_ends_with_a_period, self.class.subject_description)
end
self
end
private
def subject
TitleLinting.remove_draft_flag(message_parts[0])
end
def subject_too_short?
subject.split(' ').length < MIN_SUBJECT_WORDS_COUNT
end
def subject_too_long?
line_too_long?(subject)
end
def line_too_long?(line)
line.length > MAX_LINE_LENGTH
end
def subject_starts_with_lowercase?
return false if ('A'..'Z').cover?(subject[0])
first_char = subject.sub(/\A(\[.+\]|\w+:)\s/, '')[0]
first_char_downcased = first_char.downcase
return true unless ('a'..'z').cover?(first_char_downcased)
first_char.downcase == first_char
end
def subject_ends_with_a_period?
subject.end_with?('.')
end
def message_parts
@message_parts ||= commit.message.split("\n", 3)
end
end
end
end
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