Merge pull request #622 from hhatto/verbose-print-for-config-paths

add: verbose log for reading config paths

autopep8.py

@@ -4001,6 +4001,8 @@ def read_config(args, parser):
     config = SafeConfigParser()
 
     try:
+        if args.verbose and os.path.exists(args.global_config):
+            print("read config path: {}".format(args.global_config))
         config.read(args.global_config)
 
         if not args.ignore_local_config:
@@ -4009,6 +4011,16 @@ def read_config(args, parser):
             while tail:
                 if config.read([os.path.join(parent, fn)
                                 for fn in PROJECT_CONFIG]):
+                    if args.verbose:
+                        for fn in PROJECT_CONFIG:
+                            config_file = os.path.join(parent, fn)
+                            if not os.path.exists(config_file):
+                                continue
+                            print(
+                                "read config path: {}".format(
+                                    os.path.join(parent, fn)
+                                )
+                            )
                     break
                 (parent, tail) = os.path.split(parent)
 

test/test_autopep8.py

@@ -1051,7 +1051,14 @@ def test_e101_skip_innocuous(self):
                    os.path.join(ROOT_DIR, 'test', 'e101_example.py')],
                   stdout=PIPE, stderr=PIPE)
         output = [x.decode('utf-8') for x in p.communicate()][0]
-        self.assertEqual('', output)
+        setup_cfg_file = os.path.join(ROOT_DIR, "setup.cfg")
+        tox_ini_file = os.path.join(ROOT_DIR, "tox.ini")
+        expected = """\
+read config path: /dev/null
+read config path: {}
+read config path: {}
+""".format(setup_cfg_file, tox_ini_file)
+        self.assertEqual(expected, output)
 
     def test_e111_short(self):
         line = 'class Dummy:\n\n  def __init__(self):\n    pass\n'