Revert "Revert "Use Dir.mktmpdir""

This reverts commit 34e16110.

app/services/ci/create_trace_artifact_service.rb

@@ -6,9 +6,8 @@ module Ci
       job.trace.read do |stream|
         break unless stream.file?
 
-        temp_file!(JobArtifactUploader.workhorse_upload_path) do |temp_path|
-          FileUtils.copy(stream.path, temp_path)
-          create_job_trace!(job, temp_path)
+        clone_file!(stream.path, JobArtifactUploader.workhorse_upload_path) do |clone_path|
+          create_job_trace!(job, clone_path)
           FileUtils.rm(stream.path)
         end
       end
@@ -17,21 +16,21 @@ module Ci
     private
 
     def create_job_trace!(job, path)
+      File.open(path) do |stream|
         job.create_job_artifacts_trace!(
           project: job.project,
           file_type: :trace,
-        file: UploadedFile.new(path, 'job.log', 'application/octet-stream')
-      )
+          file: stream)
+      end
     end
 
-    def temp_file!(temp_dir)
+    def clone_file!(src_path, temp_dir)
       FileUtils.mkdir_p(temp_dir)
-      temp_file = Tempfile.new('trace-tmp-', temp_dir)
-      temp_file&.close
-      yield(temp_file.path)
-    ensure
-      temp_file&.close
-      temp_file&.unlink
+      Dir.mktmpdir('tmp-trace', temp_dir) do |dir_path|
+        temp_path = File.join(dir_path, "job.log")
+        FileUtils.copy(src_path, temp_path)
+        yield(temp_path)
+      end
     end
   end
 end