[Libguestfs] [PATCH 2/2] v2v: use Getopt.Symbol for few options

Use Getopt.Symbol for options with a fixed list of choices, so there is no need to check them on our own. --- v2v/cmdline.ml | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/v2v/cmdline.ml b/v2v/cmdline.ml index 2d0a10a..ddf5858 100644 --- a/v2v/cmdline.ml +++ b/v2v/cmdline.ml @@ -136,8 +136,7 @@ let parse_cmdline () = match mode with | "sparse" -> output_alloc := `Sparse | "preallocated" -> output_alloc := `Preallocated - | s -> - error (f_"unknown -oa option: %s") s + | s -> assert false (* Already checked by Getopt.Symbol. *) in let root_choice = ref AskRoot in @@ -171,7 +170,7 @@ let parse_cmdline () = [ L"dcpath"; L"dcPath" ], Getopt.String ("path", set_string_option_once "--dcpath" dcpath), s_"Override dcPath (for vCenter)"; [ L"debug-overlay"; L"debug-overlays" ], Getopt.Set debug_overlays, s_"Save overlay files"; - [ S 'i' ], Getopt.String (i_options, set_input_mode), s_"Set input mode (default: libvirt)"; + [ S 'i' ], Getopt.Symbol (i_options, Modules_list.input_modules (), set_input_mode), s_"Set input mode (default: libvirt)"; [ M"ic" ], Getopt.String ("uri", set_string_option_once "-ic" input_conn), s_"Libvirt URI"; [ M"if" ], Getopt.String ("format", set_string_option_once "-if" input_format), @@ -182,8 +181,8 @@ let parse_cmdline () = [ L"no-copy" ], Getopt.Clear do_copy, s_"Just write the metadata"; [ L"no-trim" ], Getopt.String ("-", no_trim_warning), s_"Ignored for backwards compatibility"; - [ S 'o' ], Getopt.String (o_options, set_output_mode), s_"Set output mode (default: libvirt)"; - [ M"oa" ], Getopt.String ("sparse|preallocated", set_output_alloc), + [ S 'o' ], Getopt.Symbol (o_options, Modules_list.output_modules (), set_output_mode), s_"Set output mode (default: libvirt)"; + [ M"oa" ], Getopt.Symbol (s_"mode", [ "sparse"; "preallocated" ], set_output_alloc), s_"Set output allocation mode"; [ M"oc" ], Getopt.String ("uri", set_string_option_once "-oc" output_conn), s_"Libvirt URI"; -- 2.7.4