document.rb

# frozen_string_literal: true

classLinter

classDocument

attr_accessor:filename,:yaml,:content

attr_accessor:lang,:author,:translator,:date

definitialize(filename)
@filename=filename
@yaml,@content=read_yaml_and_content(filename)

@lang=yaml["lang"]
@author=yaml["author"]
@translator=yaml["translator"]
@date=yaml["date"]
end

# identifier displayed in error messages
defname
filename
end

defpost?
filename.match?%r{/_posts/}
end

defrelease_post?
post? && filename.match?(%r{released\.md})
end

# posts from before the migration to the Jekyll site
# (they follow different rules; e.g. they have no YAML date variable,
# filenames of translations differ from original `en' post, ...)
defold_post?
post? && Time.utc(*filename_date_string.split("/")) < Time.utc(2013,4,1)
end

deflang_invalid?
lang.nil? || !valid_string(lang)
end

deflang_not_matching_filename?
 !lang_invalid? && !filename.start_with?("#{lang}/")
end

defauthor_invalid?
author.nil? || !valid_string(author)
end

# translator variable must be present but can be nil
deftranslator_missing?
 !yaml.key?("translator")
end

deftranslator_invalid?
returnniliftranslator.nil?

 !valid_string(translator)
end

defdate_missing?
date.nil?
end

defdate_invalid?
returnnilifdate_missing?

 !date.is_a?(Time)
end

defdate_mismatch?
returnnilifdate_missing? || date_invalid?

date_utc_string != filename_date_string
end

defdate_utc_string
date.getutc.strftime("%Y/%m/%d")
end

deffilename_date_string
File.basename(filename).split("-",4)[0..2].join("/")
end

defdate_not_utc?
returnnilifdate_missing? || date_invalid?

date.utc_offset != 0
end

defcrlf_line_breaks?
content.match?(/\r\n/)
end

defno_newline_at_eof?
 !content.end_with?("\n")
end

defblank_line_at_eof?
content.end_with?("\n\n")
end

deftrailing_whitespace?
content.match?(/ $/)
end

defsha1_length_invalid?
matchdata=content.match(/SHA1: *(?<sha>[{0-9a-f]*)/)
returnnilunlessmatchdata
returnnilifmatchdata[:sha].start_with?("{{")# {{ Liquid output }}

matchdata[:sha].size != 40
end

defsha256_length_invalid?
matchdata=content.match(/SHA256: *(?<sha>[{0-9a-f]*)/)
returnnilunlessmatchdata
returnnilifmatchdata[:sha].start_with?("{{")# {{ Liquid output }}

matchdata[:sha].size != 64
end

defsha512_length_invalid?
matchdata=content.match(/SHA512: *(?<sha>[{0-9a-f]*)/)
returnnilunlessmatchdata
returnnilifmatchdata[:sha].start_with?("{{")# {{ Liquid output }}

matchdata[:sha].size != 128
end

private

defread_yaml_and_content(filename)
content=File.read(filename)

matchdata=content.match(/\A(---\s*\n.*?\n?)^(---\s*$\n?)/m)
yaml=YAML.load(matchdata[1],permitted_classes: [Date,Time])ifmatchdata

[yaml || {},content || ""]
end

defvalid_string(obj)
obj.is_a?(String) && !obj.empty?
end
end
end