core/cli: plugins list/enable/disable commands and /plugins slash

tests/test_config/test_plugins_section.py

@@ -0,0 +1,61 @@
+"""[plugins] section mutators and parse."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+import tomlkit
+
+from plyngent.config import load
+from plyngent.config.store import ConfigStore
+
+if TYPE_CHECKING:
+    from pathlib import Path
+
+
+def test_plugins_defaults_and_parse(tmp_path: Path) -> None:
+    path = tmp_path / "c.toml"
+    _ = path.write_text("", encoding="utf-8")
+    store = load(path)
+    assert store.plugins_config.enable == []
+    assert store.plugins_config.disable == []
+
+    path.write_text(
+        """
+[plugins]
+enable = ["acme", "*"]
+disable = ["legacy"]
+""",
+        encoding="utf-8",
+    )
+    store = load(path)
+    assert store.plugins_config.enable == ["acme", "*"]
+    assert store.plugins_config.disable == ["legacy"]
+
+
+def test_enable_disable_undeny_write(tmp_path: Path) -> None:
+    path = tmp_path / "c.toml"
+    store = ConfigStore(path=path, document=tomlkit.document())
+    _ = store.enable_plugin("acme")
+    assert store.plugins_config.enable == ["acme"]
+    store.write()
+    reloaded = load(path)
+    assert reloaded.plugins_config.enable == ["acme"]
+
+    _ = store.disable_plugin("acme")
+    assert "acme" not in store.plugins_config.enable
+    assert store.plugins_config.disable == ["acme"]
+    store.write()
+    reloaded = load(path)
+    assert reloaded.plugins_config.disable == ["acme"]
+
+    _ = store.undeny_plugin("acme")
+    assert store.plugins_config.disable == []
+    _ = store.enable_plugin("*")
+    assert store.plugins_config.enable == ["*"]
+    _ = store.enable_plugin("other")
+    # Already * — stay *
+    assert store.plugins_config.enable == ["*"]
+    _ = store.clear_plugins()
+    assert store.plugins_config.enable == []
+    assert store.plugins_config.disable == []