Mock fix

Jenkinsfile_eval

@@ -21,17 +21,13 @@ pipeline {
                 sh "python3 evaluation.py"
             }
         }
-        stage('Archive single metrics') {
+        stage('Save metrics & create chart') {
-			steps{
-				archiveArtifacts 'rmse.txt'
-			}
-		}
-        stage('Save metrics to bulk file & create chart') {
             steps{
                 sh "python3 save_metrics.py ${env.BUILD_ID}"
-                archiveArtifacts 'bulk_metrics.txt'
                 sh "python3 create_chart.py"
                 archiveArtifacts 'chart.png'
+                archiveArtifacts 'bulk_metrics.txt'
+                archiveArtifacts 'rmse.txt'
             }
         }
     }

save_metrics.py

@@ -13,5 +13,5 @@ if os.path.exists("rmse.txt"):
         for line in file.readlines():
             result = line
 
-    with open("bulk_metrics.txt", "w") as file:
+    with open("bulk_metrics.txt", "a") as file:
         file.write(build_no + " " + result)