File.buildAttributeListForCopy

Prepares the file attribute query string for copying to file.

This function prepares an attribute query string to be passed to [gio.file.File.queryInfo] to get a list of attributes normally copied with the file (see [gio.file.File.copyAttributes] for the detailed description). This function is used by the implementation of [gio.file.File.copyAttributes] and is useful when one needs to query and set the attributes in two stages (e.g., for recursive move of a directory).