From eab9b2bcafb42c47248f60ef0fdac14389693dd4 Mon Sep 17 00:00:00 2001
From: pukkandan <pukkandan@gmail.com>
Date: Sat, 23 Jan 2021 15:13:51 +0530
Subject: [PATCH] Modified function `cli_configuration_args` to directly parse
 new format of `postprocessor_args` and `external_downloader_args`

---
 youtube_dlc/__init__.py             |  1 -
 youtube_dlc/downloader/external.py  | 15 ++---------
 youtube_dlc/postprocessor/common.py | 40 +++++------------------------
 youtube_dlc/utils.py                | 35 ++++++++++++++++++++-----
 4 files changed, 37 insertions(+), 54 deletions(-)

diff --git a/youtube_dlc/__init__.py b/youtube_dlc/__init__.py
index c58fb7563f..2072165ce6 100644
--- a/youtube_dlc/__init__.py
+++ b/youtube_dlc/__init__.py
@@ -18,7 +18,6 @@
 )
 from .compat import (
     compat_getpass,
-    compat_shlex_split,
     workaround_optparse_bug9161,
 )
 from .utils import (
diff --git a/youtube_dlc/downloader/external.py b/youtube_dlc/downloader/external.py
index 2ae153f4ab..f3a0d0ce40 100644
--- a/youtube_dlc/downloader/external.py
+++ b/youtube_dlc/downloader/external.py
@@ -95,19 +95,8 @@ def _valueless_option(self, command_option, param, expected_value=True):
         return cli_valueless_option(self.params, command_option, param, expected_value)
 
     def _configuration_args(self, default=[]):
-        args = self.params.get('external_downloader_args', {})
-        if isinstance(args, (list, tuple)):  # for backward compatibility
-            return args
-        if args is None:
-            return default
-        assert isinstance(args, dict)
-
-        dl_args = args.get(self.get_basename().lower())
-        if dl_args is None:
-            dl_args = args.get('default', default)
-        assert isinstance(dl_args, (list, tuple))
-        return dl_args
-
+        return cli_configuration_args(
+            self.params, 'external_downloader_args', self.get_basename(), default)[0]
 
     def _call_downloader(self, tmpfilename, info_dict):
         """ Either overwrite this or implement _make_cmd """
diff --git a/youtube_dlc/postprocessor/common.py b/youtube_dlc/postprocessor/common.py
index 5b777fad1d..7fb85413fc 100644
--- a/youtube_dlc/postprocessor/common.py
+++ b/youtube_dlc/postprocessor/common.py
@@ -4,8 +4,9 @@
 
 from ..compat import compat_str
 from ..utils import (
-    PostProcessingError,
+    cli_configuration_args,
     encodeFilename,
+    PostProcessingError,
 )
 
 
@@ -91,39 +92,10 @@ def try_utime(self, path, atime, mtime, errnote='Cannot update utime of file'):
             self.report_warning(errnote)
 
     def _configuration_args(self, default=[], exe=None):
-        args = self.get_param('postprocessor_args', {})
-        pp_key = self.pp_key().lower()
-
-        if isinstance(args, (list, tuple)):  # for backward compatibility
-            return default if pp_key == 'sponskrub' else args
-        if args is None:
-            return default
-        assert isinstance(args, dict)
-
-        exe_args = None
-        if exe is not None:
-            assert isinstance(exe, compat_str)
-            exe = exe.lower()
-            specific_args = args.get('%s+%s' % (pp_key, exe))
-            if specific_args is not None:
-                assert isinstance(specific_args, (list, tuple))
-                return specific_args
-            exe_args = args.get(exe)
-
-        pp_args = args.get(pp_key) if pp_key != exe else None
-        if pp_args is None and exe_args is None:
-            default = args.get('default', default)
-            assert isinstance(default, (list, tuple))
-            return default
-
-        if pp_args is None:
-            pp_args = []
-        elif exe_args is None:
-            exe_args = []
-
-        assert isinstance(pp_args, (list, tuple))
-        assert isinstance(exe_args, (list, tuple))
-        return pp_args + exe_args
+        key = self.pp_key().lower()
+        args, is_compat = cli_configuration_args(
+            self._downloader.params, 'postprocessor_args', key, default, exe)
+        return args if not is_compat or key != 'sponskrub' else default
 
 
 class AudioConversionError(PostProcessingError):
diff --git a/youtube_dlc/utils.py b/youtube_dlc/utils.py
index 8cecaa8eed..1ec30bafdb 100644
--- a/youtube_dlc/utils.py
+++ b/youtube_dlc/utils.py
@@ -4656,12 +4656,35 @@ def cli_valueless_option(params, command_option, param, expected_value=True):
     return [command_option] if param == expected_value else []
 
 
-def cli_configuration_args(params, param, default=[]):
-    ex_args = params.get(param)
-    if ex_args is None:
-        return default
-    assert isinstance(ex_args, list)
-    return ex_args
+def cli_configuration_args(params, arg_name, key, default=[], exe=None):  # returns arg, for_compat
+    argdict = params.get(arg_name, {})
+    if isinstance(argdict, (list, tuple)):  # for backward compatibility
+        return argdict, True
+
+    if argdict is None:
+        return default, False
+    assert isinstance(argdict, dict)
+
+    assert isinstance(key, compat_str)
+    key = key.lower()
+
+    args = exe_args = None
+    if exe is not None:
+        assert isinstance(exe, compat_str)
+        exe = exe.lower()
+        args = argdict.get('%s+%s' % (key, exe))
+        if args is None:
+            exe_args = argdict.get(exe)
+
+    if args is None:
+        args = argdict.get(key) if key != exe else None
+    if args is None and exe_args is None:
+        args = argdict.get('default', default)
+
+    args, exe_args = args or [], exe_args or []
+    assert isinstance(args, (list, tuple))
+    assert isinstance(exe_args, (list, tuple))
+    return args + exe_args, False
 
 
 class ISO639Utils(object):