smarter large file regen

lib/tasks/images.rake

@@ -22,7 +22,7 @@ namespace :images do
   desc "Generate thumbnail-sized images of posts"
   task :generate_preview => :environment do
     Post.where("image_width > ?", Danbooru.config.small_image_width).find_each do |post|
-      if post.is_image?
+      if post.is_image? && !File.exists?(post.preview_file_path)
         puts "resizing preview #{post.id}"
         Danbooru.resize(post.file_path, post.preview_file_path, Danbooru.config.small_image_width, Danbooru.config.small_image_width, 90)
       end
@@ -32,19 +32,10 @@ namespace :images do
   desc "Generate large-sized images of posts"
   task :generate_large => :environment do
     Post.where("image_width > ?", Danbooru.config.large_image_width).find_each do |post|
-      if post.is_image?
+      if post.is_image? && !File.exists?(post.large_file_path)
         puts "resizing large #{post.id}"
         Danbooru.resize(post.file_path, post.large_file_path, Danbooru.config.large_image_width, nil, 90)
-      end
-    end
-  end
-  
-  desc "Distribute large posts to other servers"
-  task :distribute_large => :environment do
-    Post.where("image_width > ?", Danbooru.config.large_image_width).find_each do |post|
-      if post.is_image?
-        puts "distributing large #{post.id}"
-        RemoteFileManager.new(post.large_file_path).distribute
+        post.distribute_files
       end
     end
   end