require "pathname" module GitHubChangelogGenerator ParserError = Class.new(StandardError) class ParserFile FILENAME = ".github_changelog_generator" def initialize(options) @options = options end # Destructively change @options using data in configured options file. def parse! file.each_line { |line| parse_line!(line) } if file.exist? end private def file @file ||= Pathname(File.expand_path(@options[:params_file] || FILENAME)) end def parse_line!(line) key_sym, value = extract_pair(line) value = true if value =~ /^(true|t|yes|y|1)$/i value = false if value =~ /^(false|f|no|n|0)$/i @options[key_sym] = value rescue raise ParserError, "Config file #{file} is incorrect in line \"#{line.gsub(/[\n\r]+/, '')}\"" end # Returns a the setting as a symbol and its string value sans newlines. # # @param line [String] unparsed line from config file # @return [Array] def extract_pair(line) key, value = line.split("=", 2) [key.sub("-", "_").to_sym, value.gsub(/[\n\r]+/, "")] end end end