Fix alias finding if user is not logged in (#1360)

CHANGELOG.D/1360.bugfix

@@ -0,0 +1 @@
+Fix the alias finding routine when user is not logged in.

neuromation/cli/alias.py

@@ -139,7 +139,10 @@ def format_help_text(
 
 
 async def find_alias(root: Root, cmd_name: str) -> Optional[click.Command]:
-    client = await root.init_client()
+    try:
+        client = await root.init_client()
+    except ConfigError:
+        return None
     config = await client.config.get_user_config()
     alias = config.get("alias", {}).get(cmd_name)
     if alias is None:

tests/cli/test_alias.py

@@ -1052,3 +1052,21 @@ async def test_list_aliases(root: Root, nmrc_path: Path) -> None:
     lst = await list_aliases(root)
     names = [cmd.name for cmd in lst]
     assert names == ["lsl", "user-cmd"]
+
+
+async def test_find_alias_without_config(tmp_path: Path) -> None:
+    root = Root(
+        color=False,
+        tty=False,
+        terminal_size=(80, 24),
+        disable_pypi_version_check=True,
+        network_timeout=60,
+        config_path=tmp_path,
+        verbosity=0,
+        trace=False,
+        trace_hide_token=True,
+        command_path="",
+        command_params=[],
+        skip_gmp_stats=True,
+    )
+    assert await find_alias(root, "unknown-cmd") is None