Add support for specifying current version in do_show

This update introduces a `--current-version` option to the `show` command and passes it into the `do_show` function. If provided, the `current_version` is added to the configuration, allowing more control over version display or manipulation.

Author: coordt

bumpversion/cli.py

@@ -337,7 +337,16 @@ def bump(
     type=str,
     help="Increment the version component and add `new_version` to the configuration.",
 )
-def show(args: List[str], config_file: Optional[str], format_: str, increment: Optional[str]) -> None:
+@click.option(
+    "--current-version",
+    metavar="VERSION",
+    required=False,
+    envvar="BUMPVERSION_CURRENT_VERSION",
+    help="Version that needs to be updated",
+)
+def show(
+    args: List[str], config_file: Optional[str], format_: str, increment: Optional[str], current_version: Optional[str]
+) -> None:
     """
     Show current configuration information.
 
@@ -355,9 +364,9 @@ def show(args: List[str], config_file: Optional[str], format_: str, increment: O
     config = get_configuration(found_config_file)
 
     if not args:
-        do_show("all", config=config, format_=format_, increment=increment)
+        do_show("all", config=config, format_=format_, increment=increment, current_version=current_version)
     else:
-        do_show(*args, config=config, format_=format_, increment=increment)
+        do_show(*args, config=config, format_=format_, increment=increment, current_version=current_version)
 
 
 @cli.command()

bumpversion/show.py

@@ -114,8 +114,16 @@ def resolve_name(obj: Any, name: str, default: Any = None, err_on_missing: bool
             return default
 
 
-def do_show(*args, config: Config, format_: str = "default", increment: Optional[str] = None) -> None:
+def do_show(
+    *args,
+    config: Config,
+    format_: str = "default",
+    increment: Optional[str] = None,
+    current_version: Optional[str] = None,
+) -> None:
     """Show current version or configuration information."""
+    if current_version:
+        config.current_version = current_version
     config_dict = config.model_dump()
     ctx = get_context(config)