Add consolidation:copy_translation task

Example use: rake consolidation:copy_translation[components.figure]

... will copy everything from the government-frontend translation files under the components.figure key into all relevant translation files. Note that government-frontend must be in a sibling directory to frontend.

lib/tasks/consolidation.rake

@@ -0,0 +1,61 @@
+# We don't care much about the coverage of scaffolding files that are just used on the desktop during
+# consolidation and are going to be removed.
+# :nocov:
+namespace :consolidation do
+  desc "Copy a locale key for all locales from government-frontend to frontend"
+  task :copy_translation, [:key] => :environment do |_, args|
+    abort("government-frontend not checked out in a sibling directory") unless Dir.exist?(Rails.root.join("../government-frontend"))
+
+    key = args.fetch(:key, nil)
+    key_parts = key.split(".")
+    abort("You need to specify a key to copy") unless key
+
+    puts("Copying #{key} translations from government-frontend to frontend")
+
+    frontend_locale_files = Dir.entries(Rails.root.join("config/locales")).select { |name| name.end_with?(".yml") }.sort
+
+    frontend_locale_files.each do |flf|
+      government_frontend_keys = YAML.load(File.read(Rails.root.join("../government-frontend/config/locales", flf)))
+      locale_key_parts = [flf.gsub(".yml", "")] + key_parts
+      translation_tree = government_frontend_keys.dig(*locale_key_parts)
+      abort("key #{key} not found in government-frontend's #{flf}") unless translation_tree
+
+      if translation_tree.is_a?(Hash)
+        get_leaf_paths(translation_tree).each { |leaf_path| LocaleUpdater.add_key(locale_key_parts.join(".") + leaf_path[0], leaf_path[1]) }
+      else
+        LocaleUpdater.add_key(locale_key_parts.join("."), translation_tree)
+      end
+    end
+  end
+end
+
+def get_leaf_paths(tree, prefix: "")
+  return [tree] if tree.is_a?(String) # Handle the case of one specific key/value
+
+  leaf_paths = []
+  tree.each_key do |key|
+    if tree[key].is_a?(Hash)
+      leaf_paths += get_leaf_paths(tree[key], prefix: prefix + ".#{key}")
+    else
+      leaf_paths << [prefix + ".#{key}", tree[key]]
+    end
+  end
+  leaf_paths
+end
+
+class LocaleUpdater
+  def self.add_key(key, value)
+    forest = ::I18n::Tasks::Data::Tree::Siblings.from_key_names [key]
+    if value
+      puts("Trying to add #{key} = #{value}")
+      forest.set_each_value!(value)
+      # system("echo '#{key}' | i18n-tasks tree-convert -f keys -t yaml | i18n-tasks tree-set-value '#{value}' | i18n-tasks data-merge")
+    else
+      puts("Trying to add empty key #{key}")
+      # system("echo '#{key}' | i18n-tasks tree-convert -f keys -t yaml | i18n-tasks data-merge")
+    end
+    I18n::Tasks::BaseTask.new.data.merge!(forest)
+  end
+end
+
+# :nocov: