Merge branch 'main' into fix/vvv

src/ape/logging.py

@@ -2,7 +2,8 @@
 import logging
 import sys
 import traceback
-from collections.abc import Callable, Sequence
+from collections.abc import Callable, Iterator, Sequence
+from contextlib import contextmanager
 from enum import IntEnum
 from pathlib import Path
 from typing import IO, Any, Optional, Union
@@ -198,6 +199,23 @@ def set_level(self, level: Union[str, int, LogLevel]):
         for _logger in self._extra_loggers.values():
             _logger.setLevel(level)
 
+    @contextmanager
+    def at_level(self, level: Union[str, int, LogLevel]) -> Iterator:
+        """
+        Change the log-level in a context.
+
+        Args:
+            level (Union[str, int, LogLevel]): The level to use.
+
+        Returns:
+            Iterator
+        """
+
+        initial_level = self.level
+        self.set_level(level)
+        yield
+        self.set_level(initial_level)
+
     def log_error(self, err: Exception):
         """
         Avoids logging empty messages.

src/ape_pm/_cli.py

@@ -62,7 +62,10 @@ def _list(cli_ctx, list_all):
         packages.append(item)
 
     if not packages:
-        click.echo("No packages installed.")
+        if list_all:
+            click.echo("No packages installed.")
+        else:
+            click.echo("No packages installed. Use `--all` to list all installed dependencies.")
         return
 
     # Output gathered packages.

tests/functional/test_logging.py

@@ -112,3 +112,12 @@ def cmd(cli_ctx):
 def test_set_level(level):
     logger.set_level(level)
     assert logger.level == LogLevel.INFO.value
+
+
+def test_at_level():
+    level_to_set = next(lvl for lvl in LogLevel if lvl != logger.level)
+    initial_level = logger.level
+    with logger.at_level(level_to_set):
+        assert logger.level == level_to_set
+
+    assert logger.level == initial_level