Refactor download and process Rails locale files

Adds a new command line task to download the latest Rails locale files.
This task also merges and normalizes the files, allowing us to easily
compare them with the existing translations.

To run the task:

thor locales:normalize_from_rails

locales.thor

@@ -74,6 +74,45 @@ class Locales < Thor
     end
   end
 
+  desc 'normalize_from_rails', 'Download latest Rails locale files, normalize them, and merge into a single file.'
+  def normalize_from_rails
+    curr_dir = File.expand_path(File.dirname(__FILE__))
+    rails_locale_dir = File.expand_path(File.join(curr_dir, 'rails', 'rails'))
+    normalized_dir = File.join(rails_locale_dir, 'normalized')
+
+    puts "Fetching latest Rails locale files to #{rails_locale_dir}... \n\n"
+    system <<-BASH
+      curl -Lo '#{rails_locale_dir}/action_view.yml' https://raw.githubusercontent.com/rails/rails/8-0-stable/actionview/lib/action_view/locale/en.yml
+      curl -Lo '#{rails_locale_dir}/active_model.yml' https://raw.githubusercontent.com/rails/rails/8-0-stable/activemodel/lib/active_model/locale/en.yml
+      curl -Lo '#{rails_locale_dir}/active_record.yml' https://raw.githubusercontent.com/rails/rails/8-0-stable/activerecord/lib/active_record/locale/en.yml
+      curl -Lo '#{rails_locale_dir}/active_support.yml' https://raw.githubusercontent.com/rails/rails/8-0-stable/activesupport/lib/active_support/locale/en.yml
+    BASH
+    puts "\nDownload complete.\n\n"
+
+    merged_content = {}
+    Dir.glob("#{rails_locale_dir}/*.yml").each do |filename|
+      puts "Normalizing #{filename}..."
+
+      content = YAML.load_file(filename)
+      normalized_content = Normalize.deep_sort(content)
+
+      output_filename = File.join(normalized_dir, File.basename(filename))
+      File.write(output_filename, normalized_content.to_yaml(line_width: -1))
+      puts "Normalized file saved to #{output_filename}"
+
+      merged_content.deep_merge!(normalized_content)
+    end
+
+    puts "\nAll downloaded files normalized and saved."
+
+    puts "\nNormalizing merged content..."
+    normalized_merged_content = Normalize.deep_sort(merged_content)
+    merged_filename = File.join(normalized_dir, 'merged.yml')
+    File.write(merged_filename, normalized_merged_content.to_yaml(line_width: -1))
+
+    puts "Merged file saved to #{merged_filename}."
+  end
+
   desc 'list', 'List locale names.'
   def list
     puts CheckLocales.list_locales.join(', ')

rails/rails/normalized/action_view.yml

@@ -0,0 +1,52 @@
+---
+en:
+  datetime:
+    distance_in_words:
+      about_x_hours:
+        one: about 1 hour
+        other: about %{count} hours
+      about_x_months:
+        one: about 1 month
+        other: about %{count} months
+      about_x_years:
+        one: about 1 year
+        other: about %{count} years
+      almost_x_years:
+        one: almost 1 year
+        other: almost %{count} years
+      half_a_minute: half a minute
+      less_than_x_seconds:
+        one: less than 1 second
+        other: less than %{count} seconds
+      less_than_x_minutes:
+        one: less than a minute
+        other: less than %{count} minutes
+      over_x_years:
+        one: over 1 year
+        other: over %{count} years
+      x_seconds:
+        one: 1 second
+        other: "%{count} seconds"
+      x_minutes:
+        one: 1 minute
+        other: "%{count} minutes"
+      x_days:
+        one: 1 day
+        other: "%{count} days"
+      x_months:
+        one: 1 month
+        other: "%{count} months"
+    prompts:
+      second: Seconds
+      minute: Minute
+      hour: Hour
+      day: Day
+      month: Month
+      year: Year
+  helpers:
+    select:
+      prompt: Please select
+    submit:
+      create: Create %{model}
+      submit: Save %{model}
+      update: Update %{model}

rails/rails/normalized/active_model.yml

@@ -0,0 +1,35 @@
+---
+en:
+  errors:
+    format: "%{attribute} %{message}"
+    messages:
+      accepted: must be accepted
+      blank: can't be blank
+      confirmation: doesn't match %{attribute}
+      empty: can't be empty
+      equal_to: must be equal to %{count}
+      even: must be even
+      exclusion: is reserved
+      greater_than: must be greater than %{count}
+      greater_than_or_equal_to: must be greater than or equal to %{count}
+      in: must be in %{count}
+      inclusion: is not included in the list
+      invalid: is invalid
+      less_than: must be less than %{count}
+      less_than_or_equal_to: must be less than or equal to %{count}
+      model_invalid: 'Validation failed: %{errors}'
+      not_a_number: is not a number
+      not_an_integer: must be an integer
+      odd: must be odd
+      other_than: must be other than %{count}
+      password_too_long: is too long
+      present: must be blank
+      too_long:
+        one: is too long (maximum is 1 character)
+        other: is too long (maximum is %{count} characters)
+      too_short:
+        one: is too short (minimum is 1 character)
+        other: is too short (minimum is %{count} characters)
+      wrong_length:
+        one: is the wrong length (should be 1 character)
+        other: is the wrong length (should be %{count} characters)

rails/rails/normalized/active_record.yml

@@ -0,0 +1,13 @@
+---
+en:
+  activerecord:
+    errors:
+      messages:
+        record_invalid: 'Validation failed: %{errors}'
+        restrict_dependent_destroy:
+          has_one: Cannot delete record because a dependent %{record} exists
+          has_many: Cannot delete record because dependent %{record} exist
+  errors:
+    messages:
+      required: must exist
+      taken: has already been taken

rails/rails/normalized/active_support.yml

@@ -0,0 +1,120 @@
+---
+en:
+  date:
+    abbr_day_names:
+    - Sun
+    - Mon
+    - Tue
+    - Wed
+    - Thu
+    - Fri
+    - Sat
+    abbr_month_names:
+    -
+    - Jan
+    - Feb
+    - Mar
+    - Apr
+    - May
+    - Jun
+    - Jul
+    - Aug
+    - Sep
+    - Oct
+    - Nov
+    - Dec
+    day_names:
+    - Sunday
+    - Monday
+    - Tuesday
+    - Wednesday
+    - Thursday
+    - Friday
+    - Saturday
+    formats:
+      default: "%Y-%m-%d"
+      long: "%B %d, %Y"
+      short: "%b %d"
+    month_names:
+    -
+    - January
+    - February
+    - March
+    - April
+    - May
+    - June
+    - July
+    - August
+    - September
+    - October
+    - November
+    - December
+    order:
+    - year
+    - month
+    - day
+  number:
+    currency:
+      format:
+        delimiter: ","
+        format: "%u%n"
+        negative_format: "-%u%n"
+        precision: 2
+        separator: "."
+        significant: false
+        strip_insignificant_zeros: false
+        unit: "$"
+    format:
+      delimiter: ","
+      precision: 3
+      round_mode: default
+      separator: "."
+      significant: false
+      strip_insignificant_zeros: false
+    human:
+      decimal_units:
+        format: "%n %u"
+        units:
+          billion: Billion
+          million: Million
+          quadrillion: Quadrillion
+          thousand: Thousand
+          trillion: Trillion
+          unit: ''
+      format:
+        delimiter: ''
+        precision: 3
+        significant: true
+        strip_insignificant_zeros: true
+      storage_units:
+        format: "%n %u"
+        units:
+          byte:
+            one: Byte
+            other: Bytes
+          eb: EB
+          gb: GB
+          kb: KB
+          mb: MB
+          pb: PB
+          tb: TB
+          zb: ZB
+    percentage:
+      format:
+        delimiter: ''
+        format: "%n%"
+    precision:
+      format:
+        delimiter: ''
+  support:
+    array:
+      last_word_connector: ", and "
+      two_words_connector: " and "
+      words_connector: ", "
+  time:
+    am: am
+    formats:
+      default: "%a, %d %b %Y %H:%M:%S %z"
+      long: "%B %d, %Y %H:%M"
+      short: "%d %b %H:%M"
+    pm: pm