/usr/lib/ruby/vendor_ruby/active_support/values/time_zone.rb is in ruby-activesupport 2:4.2.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 | require 'tzinfo'
require 'thread_safe'
require 'active_support/core_ext/object/blank'
require 'active_support/core_ext/object/try'
module ActiveSupport
# The TimeZone class serves as a wrapper around TZInfo::Timezone instances.
# It allows us to do the following:
#
# * Limit the set of zones provided by TZInfo to a meaningful subset of 146
# zones.
# * Retrieve and display zones with a friendlier name
# (e.g., "Eastern Time (US & Canada)" instead of "America/New_York").
# * Lazily load TZInfo::Timezone instances only when they're needed.
# * Create ActiveSupport::TimeWithZone instances via TimeZone's +local+,
# +parse+, +at+ and +now+ methods.
#
# If you set <tt>config.time_zone</tt> in the Rails Application, you can
# access this TimeZone object via <tt>Time.zone</tt>:
#
# # application.rb:
# class Application < Rails::Application
# config.time_zone = 'Eastern Time (US & Canada)'
# end
#
# Time.zone # => #<TimeZone:0x514834...>
# Time.zone.name # => "Eastern Time (US & Canada)"
# Time.zone.now # => Sun, 18 May 2008 14:30:44 EDT -04:00
#
# The version of TZInfo bundled with Active Support only includes the
# definitions necessary to support the zones defined by the TimeZone class.
# If you need to use zones that aren't defined by TimeZone, you'll need to
# install the TZInfo gem (if a recent version of the gem is installed locally,
# this will be used instead of the bundled version.)
class TimeZone
# Keys are Rails TimeZone names, values are TZInfo identifiers.
MAPPING = {
"International Date Line West" => "Pacific/Midway",
"Midway Island" => "Pacific/Midway",
"American Samoa" => "Pacific/Pago_Pago",
"Hawaii" => "Pacific/Honolulu",
"Alaska" => "America/Juneau",
"Pacific Time (US & Canada)" => "America/Los_Angeles",
"Tijuana" => "America/Tijuana",
"Mountain Time (US & Canada)" => "America/Denver",
"Arizona" => "America/Phoenix",
"Chihuahua" => "America/Chihuahua",
"Mazatlan" => "America/Mazatlan",
"Central Time (US & Canada)" => "America/Chicago",
"Saskatchewan" => "America/Regina",
"Guadalajara" => "America/Mexico_City",
"Mexico City" => "America/Mexico_City",
"Monterrey" => "America/Monterrey",
"Central America" => "America/Guatemala",
"Eastern Time (US & Canada)" => "America/New_York",
"Indiana (East)" => "America/Indiana/Indianapolis",
"Bogota" => "America/Bogota",
"Lima" => "America/Lima",
"Quito" => "America/Lima",
"Atlantic Time (Canada)" => "America/Halifax",
"Caracas" => "America/Caracas",
"La Paz" => "America/La_Paz",
"Santiago" => "America/Santiago",
"Newfoundland" => "America/St_Johns",
"Brasilia" => "America/Sao_Paulo",
"Buenos Aires" => "America/Argentina/Buenos_Aires",
"Montevideo" => "America/Montevideo",
"Georgetown" => "America/Guyana",
"Greenland" => "America/Godthab",
"Mid-Atlantic" => "Atlantic/South_Georgia",
"Azores" => "Atlantic/Azores",
"Cape Verde Is." => "Atlantic/Cape_Verde",
"Dublin" => "Europe/Dublin",
"Edinburgh" => "Europe/London",
"Lisbon" => "Europe/Lisbon",
"London" => "Europe/London",
"Casablanca" => "Africa/Casablanca",
"Monrovia" => "Africa/Monrovia",
"UTC" => "Etc/UTC",
"Belgrade" => "Europe/Belgrade",
"Bratislava" => "Europe/Bratislava",
"Budapest" => "Europe/Budapest",
"Ljubljana" => "Europe/Ljubljana",
"Prague" => "Europe/Prague",
"Sarajevo" => "Europe/Sarajevo",
"Skopje" => "Europe/Skopje",
"Warsaw" => "Europe/Warsaw",
"Zagreb" => "Europe/Zagreb",
"Brussels" => "Europe/Brussels",
"Copenhagen" => "Europe/Copenhagen",
"Madrid" => "Europe/Madrid",
"Paris" => "Europe/Paris",
"Amsterdam" => "Europe/Amsterdam",
"Berlin" => "Europe/Berlin",
"Bern" => "Europe/Berlin",
"Rome" => "Europe/Rome",
"Stockholm" => "Europe/Stockholm",
"Vienna" => "Europe/Vienna",
"West Central Africa" => "Africa/Algiers",
"Bucharest" => "Europe/Bucharest",
"Cairo" => "Africa/Cairo",
"Helsinki" => "Europe/Helsinki",
"Kyiv" => "Europe/Kiev",
"Riga" => "Europe/Riga",
"Sofia" => "Europe/Sofia",
"Tallinn" => "Europe/Tallinn",
"Vilnius" => "Europe/Vilnius",
"Athens" => "Europe/Athens",
"Istanbul" => "Europe/Istanbul",
"Minsk" => "Europe/Minsk",
"Jerusalem" => "Asia/Jerusalem",
"Harare" => "Africa/Harare",
"Pretoria" => "Africa/Johannesburg",
"Kaliningrad" => "Europe/Kaliningrad",
"Moscow" => "Europe/Moscow",
"St. Petersburg" => "Europe/Moscow",
"Volgograd" => "Europe/Volgograd",
"Samara" => "Europe/Samara",
"Kuwait" => "Asia/Kuwait",
"Riyadh" => "Asia/Riyadh",
"Nairobi" => "Africa/Nairobi",
"Baghdad" => "Asia/Baghdad",
"Tehran" => "Asia/Tehran",
"Abu Dhabi" => "Asia/Muscat",
"Muscat" => "Asia/Muscat",
"Baku" => "Asia/Baku",
"Tbilisi" => "Asia/Tbilisi",
"Yerevan" => "Asia/Yerevan",
"Kabul" => "Asia/Kabul",
"Ekaterinburg" => "Asia/Yekaterinburg",
"Islamabad" => "Asia/Karachi",
"Karachi" => "Asia/Karachi",
"Tashkent" => "Asia/Tashkent",
"Chennai" => "Asia/Kolkata",
"Kolkata" => "Asia/Kolkata",
"Mumbai" => "Asia/Kolkata",
"New Delhi" => "Asia/Kolkata",
"Kathmandu" => "Asia/Kathmandu",
"Astana" => "Asia/Dhaka",
"Dhaka" => "Asia/Dhaka",
"Sri Jayawardenepura" => "Asia/Colombo",
"Almaty" => "Asia/Almaty",
"Novosibirsk" => "Asia/Novosibirsk",
"Rangoon" => "Asia/Rangoon",
"Bangkok" => "Asia/Bangkok",
"Hanoi" => "Asia/Bangkok",
"Jakarta" => "Asia/Jakarta",
"Krasnoyarsk" => "Asia/Krasnoyarsk",
"Beijing" => "Asia/Shanghai",
"Chongqing" => "Asia/Chongqing",
"Hong Kong" => "Asia/Hong_Kong",
"Urumqi" => "Asia/Urumqi",
"Kuala Lumpur" => "Asia/Kuala_Lumpur",
"Singapore" => "Asia/Singapore",
"Taipei" => "Asia/Taipei",
"Perth" => "Australia/Perth",
"Irkutsk" => "Asia/Irkutsk",
"Ulaanbaatar" => "Asia/Ulaanbaatar",
"Seoul" => "Asia/Seoul",
"Osaka" => "Asia/Tokyo",
"Sapporo" => "Asia/Tokyo",
"Tokyo" => "Asia/Tokyo",
"Yakutsk" => "Asia/Yakutsk",
"Darwin" => "Australia/Darwin",
"Adelaide" => "Australia/Adelaide",
"Canberra" => "Australia/Melbourne",
"Melbourne" => "Australia/Melbourne",
"Sydney" => "Australia/Sydney",
"Brisbane" => "Australia/Brisbane",
"Hobart" => "Australia/Hobart",
"Vladivostok" => "Asia/Vladivostok",
"Guam" => "Pacific/Guam",
"Port Moresby" => "Pacific/Port_Moresby",
"Magadan" => "Asia/Magadan",
"Srednekolymsk" => "Asia/Srednekolymsk",
"Solomon Is." => "Pacific/Guadalcanal",
"New Caledonia" => "Pacific/Noumea",
"Fiji" => "Pacific/Fiji",
"Kamchatka" => "Asia/Kamchatka",
"Marshall Is." => "Pacific/Majuro",
"Auckland" => "Pacific/Auckland",
"Wellington" => "Pacific/Auckland",
"Nuku'alofa" => "Pacific/Tongatapu",
"Tokelau Is." => "Pacific/Fakaofo",
"Chatham Is." => "Pacific/Chatham",
"Samoa" => "Pacific/Apia"
}
UTC_OFFSET_WITH_COLON = '%s%02d:%02d'
UTC_OFFSET_WITHOUT_COLON = UTC_OFFSET_WITH_COLON.tr(':', '')
@lazy_zones_map = ThreadSafe::Cache.new
class << self
# Assumes self represents an offset from UTC in seconds (as returned from
# Time#utc_offset) and turns this into an +HH:MM formatted string.
#
# TimeZone.seconds_to_utc_offset(-21_600) # => "-06:00"
def seconds_to_utc_offset(seconds, colon = true)
format = colon ? UTC_OFFSET_WITH_COLON : UTC_OFFSET_WITHOUT_COLON
sign = (seconds < 0 ? '-' : '+')
hours = seconds.abs / 3600
minutes = (seconds.abs % 3600) / 60
format % [sign, hours, minutes]
end
def find_tzinfo(name)
TZInfo::TimezoneProxy.new(MAPPING[name] || name)
end
alias_method :create, :new
# Returns a TimeZone instance with the given name, or +nil+ if no
# such TimeZone instance exists. (This exists to support the use of
# this class with the +composed_of+ macro.)
def new(name)
self[name]
end
# Returns an array of all TimeZone objects. There are multiple
# TimeZone objects per time zone, in many cases, to make it easier
# for users to find their own time zone.
def all
@zones ||= zones_map.values.sort
end
def zones_map #:nodoc:
@zones_map ||= begin
MAPPING.each_key {|place| self[place]} # load all the zones
@lazy_zones_map
end
end
# Locate a specific time zone object. If the argument is a string, it
# is interpreted to mean the name of the timezone to locate. If it is a
# numeric value it is either the hour offset, or the second offset, of the
# timezone to find. (The first one with that offset will be returned.)
# Returns +nil+ if no such time zone is known to the system.
def [](arg)
case arg
when String
begin
@lazy_zones_map[arg] ||= create(arg).tap { |tz| tz.utc_offset }
rescue TZInfo::InvalidTimezoneIdentifier
nil
end
when Numeric, ActiveSupport::Duration
arg *= 3600 if arg.abs <= 13
all.find { |z| z.utc_offset == arg.to_i }
else
raise ArgumentError, "invalid argument to TimeZone[]: #{arg.inspect}"
end
end
# A convenience method for returning a collection of TimeZone objects
# for time zones in the USA.
def us_zones
@us_zones ||= all.find_all { |z| z.name =~ /US|Arizona|Indiana|Hawaii|Alaska/ }
end
end
include Comparable
attr_reader :name
attr_reader :tzinfo
# Create a new TimeZone object with the given name and offset. The
# offset is the number of seconds that this time zone is offset from UTC
# (GMT). Seconds were chosen as the offset unit because that is the unit
# that Ruby uses to represent time zone offsets (see Time#utc_offset).
def initialize(name, utc_offset = nil, tzinfo = nil)
@name = name
@utc_offset = utc_offset
@tzinfo = tzinfo || TimeZone.find_tzinfo(name)
@current_period = nil
end
# Returns the offset of this time zone from UTC in seconds.
def utc_offset
if @utc_offset
@utc_offset
else
@current_period ||= tzinfo.current_period if tzinfo
@current_period.utc_offset if @current_period
end
end
# Returns the offset of this time zone as a formatted string, of the
# format "+HH:MM".
def formatted_offset(colon=true, alternate_utc_string = nil)
utc_offset == 0 && alternate_utc_string || self.class.seconds_to_utc_offset(utc_offset, colon)
end
# Compare this time zone to the parameter. The two are compared first on
# their offsets, and then by name.
def <=>(zone)
return unless zone.respond_to? :utc_offset
result = (utc_offset <=> zone.utc_offset)
result = (name <=> zone.name) if result == 0
result
end
# Compare #name and TZInfo identifier to a supplied regexp, returning +true+
# if a match is found.
def =~(re)
re === name || re === MAPPING[name]
end
# Returns a textual representation of this time zone.
def to_s
"(GMT#{formatted_offset}) #{name}"
end
# Method for creating new ActiveSupport::TimeWithZone instance in time zone
# of +self+ from given values.
#
# Time.zone = 'Hawaii' # => "Hawaii"
# Time.zone.local(2007, 2, 1, 15, 30, 45) # => Thu, 01 Feb 2007 15:30:45 HST -10:00
def local(*args)
time = Time.utc(*args)
ActiveSupport::TimeWithZone.new(nil, self, time)
end
# Method for creating new ActiveSupport::TimeWithZone instance in time zone
# of +self+ from number of seconds since the Unix epoch.
#
# Time.zone = 'Hawaii' # => "Hawaii"
# Time.utc(2000).to_f # => 946684800.0
# Time.zone.at(946684800.0) # => Fri, 31 Dec 1999 14:00:00 HST -10:00
def at(secs)
Time.at(secs).utc.in_time_zone(self)
end
# Method for creating new ActiveSupport::TimeWithZone instance in time zone
# of +self+ from parsed string.
#
# Time.zone = 'Hawaii' # => "Hawaii"
# Time.zone.parse('1999-12-31 14:00:00') # => Fri, 31 Dec 1999 14:00:00 HST -10:00
#
# If upper components are missing from the string, they are supplied from
# TimeZone#now:
#
# Time.zone.now # => Fri, 31 Dec 1999 14:00:00 HST -10:00
# Time.zone.parse('22:30:00') # => Fri, 31 Dec 1999 22:30:00 HST -10:00
#
# However, if the date component is not provided, but any other upper
# components are supplied, then the day of the month defaults to 1:
#
# Time.zone.parse('Mar 2000') # => Wed, 01 Mar 2000 00:00:00 HST -10:00
def parse(str, now=now())
parts = Date._parse(str, false)
return if parts.empty?
time = Time.new(
parts.fetch(:year, now.year),
parts.fetch(:mon, now.month),
parts.fetch(:mday, parts[:year] || parts[:mon] ? 1 : now.day),
parts.fetch(:hour, 0),
parts.fetch(:min, 0),
parts.fetch(:sec, 0) + parts.fetch(:sec_fraction, 0),
parts.fetch(:offset, 0)
)
if parts[:offset]
TimeWithZone.new(time.utc, self)
else
TimeWithZone.new(nil, self, time)
end
end
# Returns an ActiveSupport::TimeWithZone instance representing the current
# time in the time zone represented by +self+.
#
# Time.zone = 'Hawaii' # => "Hawaii"
# Time.zone.now # => Wed, 23 Jan 2008 20:24:27 HST -10:00
def now
time_now.utc.in_time_zone(self)
end
# Return the current date in this time zone.
def today
tzinfo.now.to_date
end
# Returns the next date in this time zone.
def tomorrow
today + 1
end
# Returns the previous date in this time zone.
def yesterday
today - 1
end
# Adjust the given time to the simultaneous time in the time zone
# represented by +self+. Returns a Time.utc() instance -- if you want an
# ActiveSupport::TimeWithZone instance, use Time#in_time_zone() instead.
def utc_to_local(time)
tzinfo.utc_to_local(time)
end
# Adjust the given time to the simultaneous time in UTC. Returns a
# Time.utc() instance.
def local_to_utc(time, dst=true)
tzinfo.local_to_utc(time, dst)
end
# Available so that TimeZone instances respond like TZInfo::Timezone
# instances.
def period_for_utc(time)
tzinfo.period_for_utc(time)
end
# Available so that TimeZone instances respond like TZInfo::Timezone
# instances.
def period_for_local(time, dst=true)
tzinfo.period_for_local(time, dst)
end
def periods_for_local(time) #:nodoc:
tzinfo.periods_for_local(time)
end
private
def time_now
Time.now
end
end
end
|