diff --git a/gallery.gemspec b/gallery.gemspec
index a15d7b3..29882bb 100644
--- a/gallery.gemspec
+++ b/gallery.gemspec
@@ -2,18 +2,67 @@ $:.push File.expand_path("../lib", __FILE__)
 
 # Maintain your gem's version:
 require "gallery/version"
-app_path = File.expand_path(__dir__)
-template_path = ENV['PWD'] + '/app/templates'
-all_template = Dir.glob(template_path+'/*/')
-puts 'copying module'
-all_template.each do |folder|
-    if folder.split('/')[-1] != 'mobile'
-        begin 
-            system ('cp -r '+ app_path + '/modules/ ' + folder)
-        rescue 
-            puts 'error copy'
+require 'json'
+bundle_update_flag = ARGV[0]=='update' || ARGV[0]=='install'
+if bundle_update_flag
+  env_pwd = ENV['PWD']
+  app_path = File.expand_path(__dir__)
+  template_path = env_pwd + '/app/templates'
+  all_template = Dir.glob(template_path+'/*/')
+  default_gallery_widget_info = JSON.parse(File.read("#{app_path}/modules/gallery/info.json"))["widgets"].sort_by{|h| h["filename"].to_i} rescue []
+  all_template.each do |folder|
+    if !folder.include?('mobile')
+      info_json_file = "#{folder}modules/gallery/info.json"
+      if File.exist?(info_json_file)
+        begin
+          file_text = File.read(info_json_file) rescue ""
+          encode_file_text = file_text.encode("UTF-8", "UTF-8", invalid: :replace, replace: "???")
+          next if (encode_file_text.include?("???") rescue true)
+          info = JSON.parse(encode_file_text) rescue {}
+          flag = (info.count != 0 rescue false)
+          if flag
+            puts "Checking gallery widgets"
+            widget_info = info["widgets"].sort_by{|h| h["filename"].to_i} rescue []
+            update_flag = false
+            last_index = widget_info[-1]["filename"].match(/\d+/)[0].to_i rescue nil
+            if !last_index.nil?
+              default_gallery_widget_info.each do |h|
+                name_without_index = h["name"]["zh_tw"].sub(/\d+/,'')
+                widget_info_index = (widget_info.index{|hh| hh["name"]["zh_tw"].include?(name_without_index)} rescue -1)
+                if (widget_info_index == -1 || widget_info_index.nil?)
+                  update_flag = true
+                  copy_h = h.dup
+                  h.delete("force_cover")
+                  last_index = last_index + 1
+                  copy_h["filename"] = copy_h["filename"].sub(/\d+/){|ff| last_index.to_s}
+                  copy_h["name"].keys.each do |locale|
+                    copy_h["name"][locale] = copy_h["name"][locale].sub(/\d+/){|ff| last_index.to_s}
+                  end
+                  widget_info << copy_h
+                  Bundler.with_clean_env{%x[cp -f #{app_path}/modules/gallery/_#{h["filename"]}.html.erb #{folder}modules/gallery/_#{copy_h["filename"]}.html.erb]}
+                elsif h["force_cover"] == "true"
+                  Bundler.with_clean_env{%x[cp -f #{app_path}/modules/gallery/_#{h["filename"]}.html.erb #{folder}modules/gallery/_#{widget_info[widget_info_index]["filename"]}.html.erb]}
+                end
+              end
+              if update_flag
+                info["widgets"] = widget_info
+                puts "Writing json #{info["widgets"].count} in #{info_json_file}"
+                begin
+                  info_json = JSON.pretty_generate(info).gsub(":[",":[\n").gsub(":{",":{\n")
+                rescue
+                  info_json = info.to_s.gsub("=>",": \n")
+                end
+                File.open(info_json_file,"w+"){|f| f.write(info_json)}
+              end
+            end
+          end
+        rescue => e
+          puts e
+          puts "There has some error when checking gallery widgets"
         end
+      end
     end
+  end
 end
 #system  ('rm -r '+app_path + '/modules/')
 # Describe your gem and declare its dependencies: