Merge pull request #567 from deezer/version-option

Add options for getting spleeter version

pyproject.toml

 [tool.poetry]
 name = "spleeter"
-version = "2.1.2"
+version = "2.2.0"
 description = "The Deezer source separation library with pretrained models based on tensorflow."
 authors = ["Deezer Research <spleeter@deezer.com>"]
 license = "MIT License"

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 +33,13 @@ 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, Exit, Option, echo
 from typer.models import ArgumentInfo, OptionInfo
 
 from .audio import Codec, STFTBackend
@@ -126,3 +126,20 @@ 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",
+)