some conveniences

main.py

@@ -1,6 +1,7 @@
 import os
 import sys
 import yaml
+import shutil
 
 import pipelines
 
@@ -8,6 +9,12 @@ def main(config_yaml):
     with open(config_yaml, 'r') as f:
         config = yaml.safe_load(f)
 
+    result_dir = config["io"]["result_dir"]
+    if os.path.exists(result_dir):
+        shutil.rmtree(result_dir)
+    os.makedirs(result_dir, exist_ok=True)
+    shutil.copy(config_yaml, os.path.join(result_dir, os.path.basename(config_yaml)))
+
     pipelines.job_types[config['job']['type']](config)