pub fn reveal_in_file_manager(path: &Path) -> Result<(), String>Expand description
Spawn the per-OS file-manager “reveal this file” command.
macOS uses open -R <path>, Windows uses
explorer /select,<path>, Linux uses xdg-open <parent-dir>
(most distros don’t have a portable “select” verb).
§Errors
Returns an error string if the spawn itself failed (binary not on PATH). Non-zero exit from the spawned command is treated as success because the file manager may legitimately background the window and return immediately.