Added options for getting spleeter version

spleeter/__main__.py

@@ -11,7 +11,6 @@
         command function scope to avoid heavy import on CLI evaluation,
         leading to large bootstraping time.
 """
-
 import json
 from functools import partial
 from glob import glob
@@ -34,6 +33,12 @@ spleeter: Typer = Typer(add_completion=False)
 """ CLI application. """
 
 
+@spleeter.callback()
+def default(
+    version: bool = VersionOption,
+) ->  None:
+    pass
+
 @spleeter.command()
 def train(
     adapter: str = AudioAdapterOption,

spleeter/options.py

@@ -6,7 +6,7 @@
 from os.path import join
 from tempfile import gettempdir
 
-from typer import Argument, Option
+from typer import Argument, Option, echo, Exit
 from typer.models import ArgumentInfo, OptionInfo
 
 from .audio import Codec, STFTBackend
@@ -126,3 +126,12 @@ TrainingDataDirectoryOption: OptionInfo = Option(
 )
 
 VerboseOption: OptionInfo = Option(False, "--verbose", help="Enable verbose logs")
+
+
+def version_callback(value: bool):
+    if value:
+        from importlib.metadata import version
+        echo(f"Spleeter Version: {version('spleeter')}")
+        raise Exit()
+
+VersionOption: OptionInfo = Option(None, "--version", callback=version_callback, is_eager=True, help="Return Spleeter version")