add ability to export followers

app/controllers/settings/exports/followers_accounts_controller.rb

@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Settings
+  module Exports
+    class FollowersAccountsController < ApplicationController
+      include ExportControllerConcern
+
+      def index
+        send_export_file
+      end
+
+      private
+
+      def export_data
+        @export.to_followers_accounts_csv
+      end
+    end
+  end
+end

app/models/export.rb

@@ -29,6 +29,14 @@ class Export
     end
   end
 
+  def to_followers_accounts_csv
+    CSV.generate(headers: ['Account address'], write_headers: true) do |csv|
+      account.followers.find_each do |follow|
+        csv << [acct(follow)]
+      end
+    end
+  end
+
   def to_lists_csv
     CSV.generate do |csv|
       account.owned_lists.select(:title, :id).each do |list|

app/views/settings/exports/show.html.haml

@@ -23,7 +23,7 @@
       %tr
         %th= t('accounts.followers', count: @export.total_followers)
         %td= number_with_delimiter @export.total_followers
-        %td
+        %td= table_link_to 'download', t('exports.csv'), settings_exports_followers_path(format: :csv)
       %tr
         %th= t('exports.blocks')
         %td= number_with_delimiter @export.total_blocks

config/routes.rb

@@ -98,6 +98,7 @@ Rails.application.routes.draw do
     resource :export, only: [:show, :create]
     namespace :exports, constraints: { format: :csv } do
       resources :follows, only: :index, controller: :following_accounts
+      resources :followers, only: :index, controller: :followers_accounts
       resources :blocks, only: :index, controller: :blocked_accounts
       resources :mutes, only: :index, controller: :muted_accounts
       resources :lists, only: :index, controller: :lists