Parses Time Zone Data from the IANA Time Zone Database and transforms it into a set of Ruby modules that can be used with TZInfo.
Normally, this class wouldn’t be used. It is only run to update the timezone data and index modules.
Default number of future years data to generate (not including the current year).
Default earliest year that will be considered.
Zones to exclude from generation when not using #only_zones (set to an array containing zone identifiers).
Whether to generate country definitions (set to false to stop countries being generated).
Whether to generate zone definitions (set to false to stop zones being generated).
Latest year that will be considered. Defaults to the current year plus FUTURE_YEARS.
Earliest year that will be considered. Defaults to DEFAULT_MIN_YEAR.
Limit the set of zones to generate (set to an array containing zone identifiers).
Reads the tzdata source and generates the classes. Progress information is written to standard out.
# File lib/tzinfo/data/tzdataparser.rb, line 146 def execute # Note that the backzone file is ignored. backzone contains alternative # definitions of certain zones, primarily for pre-1970 data. It is not # recommended for ordinary use and the tzdata Makefile does not # install its entries by default. files = Dir.entries(@input_dir).select do |file| file =~ /\A[^\.]+\z/ && !%w(backzone checktab.awk leapseconds leapseconds.awk leap-seconds.list CONTRIBUTING LICENSE Makefile NEWS README SOURCE Theory version zoneinfo2tdf.pl).include?(file) && File.file?(File.join(@input_dir, file)) end files.each {|file| load_rules(file) } files.each {|file| load_zones(file) } files.each {|file| load_links(file) } load_countries if @generate_zones modules = [] if @only_zones.nil? || @only_zones.empty? @zones.each_value {|zone| zone.write_module(@output_dir) unless @exclude_zones.include?(zone.name) } else @only_zones.each {|id| zone = @zones[id] zone.write_module(@output_dir) } end write_timezones_index end if @generate_countries write_countries_index end end
Initializes a new TZDataParser. input_dir must contain the extracted tzdata tarball. output_dir is the location to output the modules (in definitions and indexes directories).
# File lib/tzinfo/data/tzdataparser.rb, line 128 def initialize(input_dir, output_dir) super() @input_dir = input_dir @output_dir = output_dir @min_year = DEFAULT_MIN_YEAR @max_year = Time.now.year + DEFAULT_FUTURE_YEARS @rule_sets = {} @zones = {} @countries = {} @no_rules = TZDataNoRules.new @generate_zones = true @generate_countries = true @only_zones = [] @exclude_zones = [] end