fix(cli[debug_info]): Guard empty strings in _private()

tony · tony · commit 5983e01dbd9b · 2026-01-05T04:07:12.000-06:00
PrivatePath("") returns "." (current directory), which would show
"shell: ." in debug-info output when SHELL env var is unset/empty.

Now empty strings return "" like None does.
diff --git a/src/tmuxp/cli/debug_info.py b/src/tmuxp/cli/debug_info.py
@@ -84,10 +84,12 @@ def _private(path: pathlib.Path | str | None) -> str:
     --------
     >>> _private(None)
     ''
+    >>> _private('')
+    ''
     >>> _private('/usr/bin/tmux')
     '/usr/bin/tmux'
     """
-    if path is None:
+    if path is None or path == "":
         return ""
     return str(PrivatePath(path))
 
