Map IANA linked TimeZones to the canonical ones

It allows to properly change TimeZone in UI when the browser returns linked (non-canonical) zone. Map's elm source code has been generated using ruby and time zones data availiable from `tzinfo-data` gem. issue: #1753 see also: justinmimbs/timezone-data#4 Co-authored-by: Piotr Jurewicz [email protected]
RailsEventStore · Mar 20, 2024 · 7a13952 · 7a13952
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diff --git a/ruby_event_store-browser/Makefile b/ruby_event_store-browser/Makefile
@@ -59,3 +59,6 @@ $(JS_OUTFILE):
 	@echo "Building browser JS"
 	@cd elm; npx elm make --optimize --output=../public/ruby_event_store_browser.js src/Main.elm > /dev/null
 	@cd elm; npx uglify-js ../public/ruby_event_store_browser.js --compress "pure_funcs=[F2,F3,F4,F5,F6,F7,F8,F9,A2,A3,A4,A5,A6,A7,A8,A9],pure_getters,keep_fargs=false,unsafe_comps,unsafe" | npx uglify-js --mangle --output ../public/ruby_event_store_browser.js
+
+generate-timezones-map:
+	@ruby bin/generate_timezones_map.rb
diff --git a/ruby_event_store-browser/bin/generate_timezones_map.rb b/ruby_event_store-browser/bin/generate_timezones_map.rb
@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+
+require 'bundler/inline'
+
+gemfile do
+  source "https://rubygems.org"
+  gem "tzinfo"
+  gem "tzinfo-data", "~> 1.2024.1"
+end
+
+def header
+  [
+    "-- This is a generated file. Do not edit.",
+    "-- To regenerate it with the latest data, run:",
+    "-- `make generate-timezones-map`",
+    "",
+    "module LinkedTimezones exposing (mapLinkedTimeZone)",
+    "mapLinkedTimeZone : String -> String",
+    "mapLinkedTimeZone str =",
+    "  case str of"
+  ]
+end
+
+def links
+  TZInfo::Timezone.all_linked_zones.map do |zone|
+    "    \"#{zone.identifier}\" -> \"#{zone.canonical_identifier}\""
+  end
+end
+
+def footer
+  ["    _ -> str"]
+end
+
+
+File.write("elm/src/LinkedTimezones.elm", (header + links + footer).join("\n"))
diff --git a/ruby_event_store-browser/elm/src/Layout.elm b/ruby_event_store-browser/elm/src/Layout.elm
@@ -6,6 +6,7 @@ import Dict
 import Html exposing (..)
 import Html.Attributes exposing (class, href, placeholder, selected, value)
 import Html.Events exposing (onInput, onSubmit)
+import LinkedTimezones exposing(mapLinkedTimeZone)
 import List.Extra
 import Route
 import TimeZone exposing (zones)
@@ -56,8 +57,10 @@ update msg model =
 
             else
                 let
+                    betterZoneName =
+                        mapLinkedTimeZone zoneName
                     maybeZone =
-                        Dict.get zoneName zones
+                        Dict.get betterZoneName zones
                 in
                 case maybeZone of
                     Just zone ->

diff --git a/ruby_event_store-browser/elm/src/LinkedTimezones.elm b/ruby_event_store-browser/elm/src/LinkedTimezones.elm
@@ -0,0 +1,254 @@
+-- This is a generated file. Do not edit.
+-- To regenerate it with the latest data, run:
+-- `make generate-timezones-map`
+
+module LinkedTimezones exposing (mapLinkedTimeZone)
+mapLinkedTimeZone : String -> String
+mapLinkedTimeZone str =
+  case str of
+    "Africa/Accra" -> "Africa/Abidjan"
+    "Africa/Addis_Ababa" -> "Africa/Nairobi"
+    "Africa/Asmara" -> "Africa/Nairobi"
+    "Africa/Asmera" -> "Africa/Nairobi"
+    "Africa/Bamako" -> "Africa/Abidjan"
+    "Africa/Bangui" -> "Africa/Lagos"
+    "Africa/Banjul" -> "Africa/Abidjan"
+    "Africa/Blantyre" -> "Africa/Maputo"
+    "Africa/Brazzaville" -> "Africa/Lagos"
+    "Africa/Bujumbura" -> "Africa/Maputo"
+    "Africa/Conakry" -> "Africa/Abidjan"
+    "Africa/Dakar" -> "Africa/Abidjan"
+    "Africa/Dar_es_Salaam" -> "Africa/Nairobi"
+    "Africa/Djibouti" -> "Africa/Nairobi"
+    "Africa/Douala" -> "Africa/Lagos"
+    "Africa/Freetown" -> "Africa/Abidjan"
+    "Africa/Gaborone" -> "Africa/Maputo"
+    "Africa/Harare" -> "Africa/Maputo"
+    "Africa/Kampala" -> "Africa/Nairobi"
+    "Africa/Kigali" -> "Africa/Maputo"
+    "Africa/Kinshasa" -> "Africa/Lagos"
+    "Africa/Libreville" -> "Africa/Lagos"
+    "Africa/Lome" -> "Africa/Abidjan"
+    "Africa/Luanda" -> "Africa/Lagos"
+    "Africa/Lubumbashi" -> "Africa/Maputo"
+    "Africa/Lusaka" -> "Africa/Maputo"
+    "Africa/Malabo" -> "Africa/Lagos"
+    "Africa/Maseru" -> "Africa/Johannesburg"
+    "Africa/Mbabane" -> "Africa/Johannesburg"
+    "Africa/Mogadishu" -> "Africa/Nairobi"
+    "Africa/Niamey" -> "Africa/Lagos"
+    "Africa/Nouakchott" -> "Africa/Abidjan"
+    "Africa/Ouagadougou" -> "Africa/Abidjan"
+    "Africa/Porto-Novo" -> "Africa/Lagos"
+    "Africa/Timbuktu" -> "Africa/Abidjan"
+    "America/Anguilla" -> "America/Puerto_Rico"
+    "America/Antigua" -> "America/Puerto_Rico"
+    "America/Argentina/ComodRivadavia" -> "America/Argentina/Catamarca"
+    "America/Aruba" -> "America/Puerto_Rico"
+    "America/Atikokan" -> "America/Panama"
+    "America/Atka" -> "America/Adak"
+    "America/Blanc-Sablon" -> "America/Puerto_Rico"
+    "America/Buenos_Aires" -> "America/Argentina/Buenos_Aires"
+    "America/Catamarca" -> "America/Argentina/Catamarca"
+    "America/Cayman" -> "America/Panama"
+    "America/Coral_Harbour" -> "America/Panama"
+    "America/Cordoba" -> "America/Argentina/Cordoba"
+    "America/Creston" -> "America/Phoenix"
+    "America/Curacao" -> "America/Puerto_Rico"
+    "America/Dominica" -> "America/Puerto_Rico"
+    "America/Ensenada" -> "America/Tijuana"
+    "America/Fort_Wayne" -> "America/Indiana/Indianapolis"
+    "America/Godthab" -> "America/Nuuk"
+    "America/Grenada" -> "America/Puerto_Rico"
+    "America/Guadeloupe" -> "America/Puerto_Rico"
+    "America/Indianapolis" -> "America/Indiana/Indianapolis"
+    "America/Jujuy" -> "America/Argentina/Jujuy"
+    "America/Knox_IN" -> "America/Indiana/Knox"
+    "America/Kralendijk" -> "America/Puerto_Rico"
+    "America/Louisville" -> "America/Kentucky/Louisville"
+    "America/Lower_Princes" -> "America/Puerto_Rico"
+    "America/Marigot" -> "America/Puerto_Rico"
+    "America/Mendoza" -> "America/Argentina/Mendoza"
+    "America/Montreal" -> "America/Toronto"
+    "America/Montserrat" -> "America/Puerto_Rico"
+    "America/Nassau" -> "America/Toronto"
+    "America/Nipigon" -> "America/Toronto"
+    "America/Pangnirtung" -> "America/Iqaluit"
+    "America/Port_of_Spain" -> "America/Puerto_Rico"
+    "America/Porto_Acre" -> "America/Rio_Branco"
+    "America/Rainy_River" -> "America/Winnipeg"
+    "America/Rosario" -> "America/Argentina/Cordoba"
+    "America/Santa_Isabel" -> "America/Tijuana"
+    "America/Shiprock" -> "America/Denver"
+    "America/St_Barthelemy" -> "America/Puerto_Rico"
+    "America/St_Kitts" -> "America/Puerto_Rico"
+    "America/St_Lucia" -> "America/Puerto_Rico"
+    "America/St_Thomas" -> "America/Puerto_Rico"
+    "America/St_Vincent" -> "America/Puerto_Rico"
+    "America/Thunder_Bay" -> "America/Toronto"
+    "America/Tortola" -> "America/Puerto_Rico"
+    "America/Virgin" -> "America/Puerto_Rico"
+    "America/Yellowknife" -> "America/Edmonton"
+    "Antarctica/DumontDUrville" -> "Pacific/Port_Moresby"
+    "Antarctica/McMurdo" -> "Pacific/Auckland"
+    "Antarctica/South_Pole" -> "Pacific/Auckland"
+    "Antarctica/Syowa" -> "Asia/Riyadh"
+    "Arctic/Longyearbyen" -> "Europe/Berlin"
+    "Asia/Aden" -> "Asia/Riyadh"
+    "Asia/Ashkhabad" -> "Asia/Ashgabat"
+    "Asia/Bahrain" -> "Asia/Qatar"
+    "Asia/Brunei" -> "Asia/Kuching"
+    "Asia/Calcutta" -> "Asia/Kolkata"
+    "Asia/Chongqing" -> "Asia/Shanghai"
+    "Asia/Chungking" -> "Asia/Shanghai"
+    "Asia/Dacca" -> "Asia/Dhaka"
+    "Asia/Harbin" -> "Asia/Shanghai"
+    "Asia/Istanbul" -> "Europe/Istanbul"
+    "Asia/Kashgar" -> "Asia/Urumqi"
+    "Asia/Katmandu" -> "Asia/Kathmandu"
+    "Asia/Kuala_Lumpur" -> "Asia/Singapore"
+    "Asia/Kuwait" -> "Asia/Riyadh"
+    "Asia/Macao" -> "Asia/Macau"
+    "Asia/Muscat" -> "Asia/Dubai"
+    "Asia/Phnom_Penh" -> "Asia/Bangkok"
+    "Asia/Rangoon" -> "Asia/Yangon"
+    "Asia/Saigon" -> "Asia/Ho_Chi_Minh"
+    "Asia/Tel_Aviv" -> "Asia/Jerusalem"
+    "Asia/Thimbu" -> "Asia/Thimphu"
+    "Asia/Ujung_Pandang" -> "Asia/Makassar"
+    "Asia/Ulan_Bator" -> "Asia/Ulaanbaatar"
+    "Asia/Vientiane" -> "Asia/Bangkok"
+    "Atlantic/Faeroe" -> "Atlantic/Faroe"
+    "Atlantic/Jan_Mayen" -> "Europe/Berlin"
+    "Atlantic/Reykjavik" -> "Africa/Abidjan"
+    "Atlantic/St_Helena" -> "Africa/Abidjan"
+    "Australia/ACT" -> "Australia/Sydney"
+    "Australia/Canberra" -> "Australia/Sydney"
+    "Australia/Currie" -> "Australia/Hobart"
+    "Australia/LHI" -> "Australia/Lord_Howe"
+    "Australia/NSW" -> "Australia/Sydney"
+    "Australia/North" -> "Australia/Darwin"
+    "Australia/Queensland" -> "Australia/Brisbane"
+    "Australia/South" -> "Australia/Adelaide"
+    "Australia/Tasmania" -> "Australia/Hobart"
+    "Australia/Victoria" -> "Australia/Melbourne"
+    "Australia/West" -> "Australia/Perth"
+    "Australia/Yancowinna" -> "Australia/Broken_Hill"
+    "Brazil/Acre" -> "America/Rio_Branco"
+    "Brazil/DeNoronha" -> "America/Noronha"
+    "Brazil/East" -> "America/Sao_Paulo"
+    "Brazil/West" -> "America/Manaus"
+    "Canada/Atlantic" -> "America/Halifax"
+    "Canada/Central" -> "America/Winnipeg"
+    "Canada/Eastern" -> "America/Toronto"
+    "Canada/Mountain" -> "America/Edmonton"
+    "Canada/Newfoundland" -> "America/St_Johns"
+    "Canada/Pacific" -> "America/Vancouver"
+    "Canada/Saskatchewan" -> "America/Regina"
+    "Canada/Yukon" -> "America/Whitehorse"
+    "Chile/Continental" -> "America/Santiago"
+    "Chile/EasterIsland" -> "Pacific/Easter"
+    "Cuba" -> "America/Havana"
+    "Egypt" -> "Africa/Cairo"
+    "Eire" -> "Europe/Dublin"
+    "Etc/GMT+0" -> "Etc/GMT"
+    "Etc/GMT-0" -> "Etc/GMT"
+    "Etc/GMT0" -> "Etc/GMT"
+    "Etc/Greenwich" -> "Etc/GMT"
+    "Etc/UCT" -> "Etc/UTC"
+    "Etc/Universal" -> "Etc/UTC"
+    "Etc/Zulu" -> "Etc/UTC"
+    "Europe/Amsterdam" -> "Europe/Brussels"
+    "Europe/Belfast" -> "Europe/London"
+    "Europe/Bratislava" -> "Europe/Prague"
+    "Europe/Busingen" -> "Europe/Zurich"
+    "Europe/Copenhagen" -> "Europe/Berlin"
+    "Europe/Guernsey" -> "Europe/London"
+    "Europe/Isle_of_Man" -> "Europe/London"
+    "Europe/Jersey" -> "Europe/London"
+    "Europe/Kiev" -> "Europe/Kyiv"
+    "Europe/Ljubljana" -> "Europe/Belgrade"
+    "Europe/Luxembourg" -> "Europe/Brussels"
+    "Europe/Mariehamn" -> "Europe/Helsinki"
+    "Europe/Monaco" -> "Europe/Paris"
+    "Europe/Nicosia" -> "Asia/Nicosia"
+    "Europe/Oslo" -> "Europe/Berlin"
+    "Europe/Podgorica" -> "Europe/Belgrade"
+    "Europe/San_Marino" -> "Europe/Rome"
+    "Europe/Sarajevo" -> "Europe/Belgrade"
+    "Europe/Skopje" -> "Europe/Belgrade"
+    "Europe/Stockholm" -> "Europe/Berlin"
+    "Europe/Tiraspol" -> "Europe/Chisinau"
+    "Europe/Uzhgorod" -> "Europe/Kyiv"
+    "Europe/Vaduz" -> "Europe/Zurich"
+    "Europe/Vatican" -> "Europe/Rome"
+    "Europe/Zagreb" -> "Europe/Belgrade"
+    "Europe/Zaporozhye" -> "Europe/Kyiv"
+    "GB" -> "Europe/London"
+    "GB-Eire" -> "Europe/London"
+    "GMT" -> "Etc/GMT"
+    "GMT+0" -> "Etc/GMT"
+    "GMT-0" -> "Etc/GMT"
+    "GMT0" -> "Etc/GMT"
+    "Greenwich" -> "Etc/GMT"
+    "Hongkong" -> "Asia/Hong_Kong"
+    "Iceland" -> "Africa/Abidjan"
+    "Indian/Antananarivo" -> "Africa/Nairobi"
+    "Indian/Christmas" -> "Asia/Bangkok"
+    "Indian/Cocos" -> "Asia/Yangon"
+    "Indian/Comoro" -> "Africa/Nairobi"
+    "Indian/Kerguelen" -> "Indian/Maldives"
+    "Indian/Mahe" -> "Asia/Dubai"
+    "Indian/Mayotte" -> "Africa/Nairobi"
+    "Indian/Reunion" -> "Asia/Dubai"
+    "Iran" -> "Asia/Tehran"
+    "Israel" -> "Asia/Jerusalem"
+    "Jamaica" -> "America/Jamaica"
+    "Japan" -> "Asia/Tokyo"
+    "Kwajalein" -> "Pacific/Kwajalein"
+    "Libya" -> "Africa/Tripoli"
+    "Mexico/BajaNorte" -> "America/Tijuana"
+    "Mexico/BajaSur" -> "America/Mazatlan"
+    "Mexico/General" -> "America/Mexico_City"
+    "NZ" -> "Pacific/Auckland"
+    "NZ-CHAT" -> "Pacific/Chatham"
+    "Navajo" -> "America/Denver"
+    "PRC" -> "Asia/Shanghai"
+    "Pacific/Chuuk" -> "Pacific/Port_Moresby"
+    "Pacific/Enderbury" -> "Pacific/Kanton"
+    "Pacific/Funafuti" -> "Pacific/Tarawa"
+    "Pacific/Johnston" -> "Pacific/Honolulu"
+    "Pacific/Majuro" -> "Pacific/Tarawa"
+    "Pacific/Midway" -> "Pacific/Pago_Pago"
+    "Pacific/Pohnpei" -> "Pacific/Guadalcanal"
+    "Pacific/Ponape" -> "Pacific/Guadalcanal"
+    "Pacific/Saipan" -> "Pacific/Guam"
+    "Pacific/Samoa" -> "Pacific/Pago_Pago"
+    "Pacific/Truk" -> "Pacific/Port_Moresby"
+    "Pacific/Wake" -> "Pacific/Tarawa"
+    "Pacific/Wallis" -> "Pacific/Tarawa"
+    "Pacific/Yap" -> "Pacific/Port_Moresby"
+    "Poland" -> "Europe/Warsaw"
+    "Portugal" -> "Europe/Lisbon"
+    "ROC" -> "Asia/Taipei"
+    "ROK" -> "Asia/Seoul"
+    "Singapore" -> "Asia/Singapore"
+    "Turkey" -> "Europe/Istanbul"
+    "UCT" -> "Etc/UTC"
+    "US/Alaska" -> "America/Anchorage"
+    "US/Aleutian" -> "America/Adak"
+    "US/Arizona" -> "America/Phoenix"
+    "US/Central" -> "America/Chicago"
+    "US/East-Indiana" -> "America/Indiana/Indianapolis"
+    "US/Eastern" -> "America/New_York"
+    "US/Hawaii" -> "Pacific/Honolulu"
+    "US/Indiana-Starke" -> "America/Indiana/Knox"
+    "US/Michigan" -> "America/Detroit"
+    "US/Mountain" -> "America/Denver"
+    "US/Pacific" -> "America/Los_Angeles"
+    "US/Samoa" -> "Pacific/Pago_Pago"
+    "UTC" -> "Etc/UTC"
+    "Universal" -> "Etc/UTC"
+    "W-SU" -> "Europe/Moscow"
+    "Zulu" -> "Etc/UTC"
+    _ -> str