Fix database trace to read raw

app/controllers/projects/jobs_controller.rb

@@ -119,17 +119,17 @@ class Projects::JobsController < Projects::ApplicationController
   end
 
   def raw
-    if trace_artifact_file
-      send_upload(trace_artifact_file,
-                  send_params: raw_send_params,
-                  redirect_params: raw_redirect_params)
-    else
-      build.trace.read do |stream|
-        if stream.file?
-          send_file stream.path, type: 'text/plain; charset=utf-8', disposition: 'inline'
-        else
-          render_404
-        end
+    build.trace.read do |stream|
+      if trace_artifact_file
+        send_upload(trace_artifact_file,
+          send_params: { type: 'text/plain; charset=utf-8', disposition: 'inline' },
+          redirect_params: { query: { 'response-content-type' => 'text/plain; charset=utf-8', 'response-content-disposition' => 'inline' } } )
+      elsif stream.file?
+        send_file stream.path, type: 'text/plain; charset=utf-8', disposition: 'inline'
+      elsif build.old_trace
+        send_data stream.path, type: 'text/plain; charset=utf-8', disposition: 'inline', filename: 'job.log'
+      else
+        render_404
       end
     end
   end
@@ -144,14 +144,6 @@ class Projects::JobsController < Projects::ApplicationController
     return access_denied! unless can?(current_user, :erase_build, build)
   end
 
-  def raw_send_params
-    { type: 'text/plain; charset=utf-8', disposition: 'inline' }
-  end
-
-  def raw_redirect_params
-    { query: { 'response-content-type' => 'text/plain; charset=utf-8', 'response-content-disposition' => 'inline' } }
-  end
-
   def trace_artifact_file
     @trace_artifact_file ||= build.job_artifacts_trace&.file
   end

lib/gitlab/ci/trace/stream.rb

@@ -22,7 +22,7 @@ module Gitlab
         end
 
         def file?
-          self.path.present?
+          self.path.present? if self.respond_to(:path)
         end
 
         def limit(last_bytes = LIMIT_SIZE)