🔊 restore input argument with warning

spleeter/__main__.py

@@ -19,7 +19,7 @@ from itertools import product
 from glob import glob
 from os.path import join
 from pathlib import Path
-from typing import Container, Dict, List
+from typing import Container, Dict, List, Optional
 
 from . import SpleeterError
 from .options import *
@@ -89,7 +89,8 @@ def train(
 
 @spleeter.command()
 def separate(
-        files: List[Path] = AudioInputOptions,
+        deprecated_file: Optional[str] = AudioInputOption,
+        files: List[Path] = AudioInputArgument,
         adapter: str = AudioAdapterOption,
         bitrate: str = AudioBitrateOption,
         codec: Codec = AudioCodecOption,
@@ -108,6 +109,11 @@ def separate(
     from .separator import Separator
 
     configure_logger(verbose)
+    if deprecated_file is not None:
+        logger.error(
+            '⚠️ -i option is not supported anymore, audio files must be supplied '
+            'using input argument instead (see spleeter separate --help)')
+        raise Exit(20)
     audio_adapter: AudioAdapter = AudioAdapter.get(adapter)
     separator: Separator = Separator(
         params_filename,

spleeter/options.py

@@ -8,17 +8,15 @@ from os.path import join
 
 from .audio import Codec, STFTBackend
 
-from typer import Option
+from typer import Argument, Option
-from typer.models import OptionInfo
+from typer.models import ArgumentInfo, OptionInfo
 
 __email__ = 'spleeter@deezer.com'
 __author__ = 'Deezer Research'
 __license__ = 'MIT License'
 
-AudioInputOptions: OptionInfo = Option(
+AudioInputArgument: ArgumentInfo = Argument(
     ...,
-    '--inputs',
-    '-i',
     help='List of input audio file path',
     exists=True,
     file_okay=True,
@@ -26,6 +24,12 @@ AudioInputOptions: OptionInfo = Option(
     readable=True,
     resolve_path=True)
 
+AudioInputOption: OptionInfo = Option(
+    None,
+    '--inputs',
+    '-i',
+    help='(DEPRECATED) placeholder for deprecated input option')
+
 AudioAdapterOption: OptionInfo = Option(
     'spleeter.audio.ffmpeg.FFMPEGProcessAudioAdapter',
     '--adapter',