修改部分内容

app/helpers/repositories_helper.rb

@@ -5,7 +5,12 @@ module RepositoriesHelper
   end
 
   def download_type(str)
-    default_type = %w(xlsx xls ppt pptx pdf zip 7z rar exe pdb obj idb png jpg gif tif psd svg)
+    default_type = %w(xlsx xls ppt pptx pdf zip 7z rar exe pdb obj idb)
+    default_type.include?(str&.downcase)
+  end
+
+  def image_type?(str)
+    default_type = %w(png jpg gif tif psd svg)
     default_type.include?(str&.downcase)
   end
 

app/views/repositories/_simple_entry.json.jbuilder

@@ -1,6 +1,7 @@
 file_name = entry['name']
 file_type = file_name.to_s.split(".").last
 direct_download = download_type(file_type)
+image_type = image_type?(file_type)
 json.name file_name
 json.sha entry['sha']
 json.path entry['path']
@@ -10,6 +11,7 @@ json.content entry['content'].present? && !direct_download ? render_decode64_con
 json.target entry['target']
 json.download_url entry['download_url']
 json.direct_download direct_download
+json.image_type image_type
 
 if entry['latest_commit']
   json.partial! 'last_commit', entry: entry