Add ini file processor

docs/task_on_kart.rst

@@ -90,6 +90,7 @@ It is also possible to specify a file format other than pkl. The supported file
 - .feather
 - .png
 - .jpg
+- .ini
 
 
 If dump something other than the above, can use :func:`~gokart.TaskOnKart.make_model_target`.

gokart/file_processor.py

@@ -280,6 +280,7 @@ def make_file_processor(file_path: str, store_index_in_feather: bool) -> FilePro
         '.feather': FeatherFileProcessor(store_index_in_feather=store_index_in_feather),
         '.png': BinaryFileProcessor(),
         '.jpg': BinaryFileProcessor(),
+        '.ini': TextFileProcessor(),
     }
 
     extension = os.path.splitext(file_path)[1]

test/test_target.py

@@ -8,6 +8,7 @@
 import boto3
 import numpy as np
 import pandas as pd
+from luigi.configuration.cfg_parser import LuigiConfigParser
 from matplotlib import pyplot
 from moto import mock_s3
 
@@ -127,6 +128,19 @@ def test_save_and_load_feather_without_store_index_in_feather(self):
 
         pd.testing.assert_frame_equal(loaded, obj)
 
+    def test_save_and_load_config_ini_file(self):
+        obj = LuigiConfigParser()
+        obj['common'] = {'a': '1', 'b': 'yes', 'c': 2}
+        obj['example'] = {}
+        obj['example']['d'] = 'foo'
+        obj['example']['e'] = 'true'
+        file_path = os.path.join(_get_temporary_directory(), 'test.ini')
+
+        target = make_target(file_path=file_path, unique_id=None)
+        target.dump(obj)
+        loaded = target.load()
+        self.assertEqual(loaded, [str(obj)], msg='should save an object as List[str].')
+
     def test_last_modified_time(self):
         obj = pd.DataFrame(dict(a=[1, 2], b=[3, 4]))
         file_path = os.path.join(_get_temporary_directory(), 'test.csv')