fixed some race conditions

app/importers/posts_importer.rb

···
             @report&.update(queue: { length: @item_queue.length })
           end
         rescue StandardError => e
-          puts "Error in LikesImporter: #{record['uri']}: #{e}"
+          puts "Error in PostsImporter: #{record['uri']}: #{e}"
         end
       end
 

app/post_downloader.rb

···
 
     author = User.find_or_create_by!(did: did)
 
-    Post.create(
+    if post = Post.find_by(user: author, rkey: rkey)
+      return post
+    end
+
+    Post.create!(
       user: author,
       rkey: rkey,
       time: Time.parse(created),

app/reports/console_report.rb

···
   def initialize
     @data = {}
     @start = Time.now
+    @mutex = Mutex.new
   end
 
   def update(data)
-    deep_merge(@data, data)
+    @mutex.synchronize { deep_merge(@data, data) }
     render
   end