update iso data

lib/location/subdivision.ex

@@ -16,6 +16,13 @@ defmodule Location.Subdivision do
       :ets.insert(ets, {entry["code"], to_struct(entry)})
     end)
 
+    File.read!(restore_source_file())
+    |> Jason.decode!()
+    |> Enum.each(fn entry ->
+      entry = translate_entry(translations, entry)
+      :ets.insert(ets, {entry["code"], to_struct(entry)})
+    end)
+
     File.read!(override_source_file())
     |> Jason.decode!()
     |> Enum.each(fn entry ->
@@ -72,6 +79,10 @@ defmodule Location.Subdivision do
     Application.app_dir(:location, "priv/iso_3166-2.json")
   end
 
+  defp restore_source_file() do
+    Application.app_dir(:location, "priv/restore/iso_3166-2.json")
+  end
+
   defp translations_file() do
     Application.app_dir(:location, "priv/iso_3166-2.en-translations.json")
   end

mix_tasks/update_iso_data.ex

@@ -12,10 +12,47 @@ defmodule Mix.Tasks.UpdateIsoData do
     %HTTPoison.Response{status_code: 200, body: countries} = HTTPoison.get!(@countries_src)
     File.write!(@countries_dest, countries)
 
-    %HTTPoison.Response{status_code: 200, body: subdivisions} = HTTPoison.get!(@subdivisions_src)
-    %{"3166-2" => subdivisions} = Jason.decode!(subdivisions)
-    subdivisions = Enum.map(fn subdivision -> Map.delete(subdivision, "parent") end)
-    subdivisions = Jason.encode_to_iodata!(%{"3166-2" => subdivisions})
-    File.write!(@subdivisions_dest, subdivisions)
+    %HTTPoison.Response{status_code: 200, body: new_subdivisions} =
+      HTTPoison.get!(@subdivisions_src)
+
+    %{"3166-2" => new_subdivisions} = Jason.decode!(new_subdivisions)
+
+    new_subdivisions =
+      Enum.map(new_subdivisions, fn subdivision -> Map.delete(subdivision, "parent") end)
+
+    new_subdivisions_codes = MapSet.new(new_subdivisions, fn %{"code" => code} -> code end)
+
+    # ensures no codes are deleted
+    # if a code no longer exists in new subdivisions, we put it in restore folder
+    restored_subdivisions_path = Application.app_dir(:location, "/priv/restore/iso_3166-2.json")
+
+    new_restored_subdivisions =
+      if File.exists?(@subdivisions_dest) do
+        File.read!(@subdivisions_dest)
+        |> Jason.decode!()
+        |> Map.fetch!("3166-2")
+        |> Enum.reject(fn %{"code" => code} -> MapSet.member?(new_subdivisions_codes, code) end)
+      end
+
+    prev_restored_subdivisions =
+      if File.exists?(restored_subdivisions_path) do
+        Jason.decode!(File.read!(restored_subdivisions_path))
+      end
+
+    restored_subdivisions =
+      (new_restored_subdivisions || []) ++ (prev_restored_subdivisions || [])
+
+    restored_subdivisions =
+      restored_subdivisions
+      |> Enum.uniq_by(fn %{"code" => code} -> code end)
+      |> Enum.sort_by(fn %{"code" => code} -> code end)
+
+    File.write!(
+      restored_subdivisions_path,
+      Jason.encode_to_iodata!(restored_subdivisions, pretty: true)
+    )
+
+    new_subdivisions = Jason.encode_to_iodata!(%{"3166-2" => new_subdivisions}, pretty: true)
+    File.write!(@subdivisions_dest, new_subdivisions)
   end
 end

priv/iso_3166-1.json

@@ -821,6 +821,7 @@
     {
       "alpha_2": "IR",
       "alpha_3": "IRN",
+      "common_name": "Iran",
       "flag": "🇮🇷",
       "name": "Iran, Islamic Republic of",
       "numeric": "364",
@@ -953,6 +954,7 @@
     {
       "alpha_2": "LA",
       "alpha_3": "LAO",
+      "common_name": "Laos",
       "flag": "🇱🇦",
       "name": "Lao People's Democratic Republic",
       "numeric": "418"
@@ -1653,6 +1655,7 @@
     {
       "alpha_2": "SY",
       "alpha_3": "SYR",
+      "common_name": "Syria",
       "flag": "🇸🇾",
       "name": "Syrian Arab Republic",
       "numeric": "760"
@@ -1746,9 +1749,9 @@
       "alpha_2": "TR",
       "alpha_3": "TUR",
       "flag": "🇹🇷",
-      "name": "Turkey",
+      "name": "Türkiye",
       "numeric": "792",
-      "official_name": "Republic of Turkey"
+      "official_name": "Republic of Türkiye"
     },
     {
       "alpha_2": "TV",