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| author | Michael Brown <mcb30@ipxe.org> | 2013-11-07 17:00:51 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2013-11-07 17:00:51 +0000 |
| commit | 43eba2f555e2a2ed0fbedeeda73dd1720437fd97 (patch) | |
| tree | 86e2decd0adbcb0e92ed8aed80b0b38023e7605a /src/hci/commands/sanboot_cmd.c | |
| parent | 6871a8113f784f5fedb67f245e15699cdfb2b8f7 (diff) | |
| download | ipxe-43eba2f555e2a2ed0fbedeeda73dd1720437fd97.tar.gz | |
[cmdline] Generate command option help text automatically
Generate the command option help text automatically from the list of
defined options.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/hci/commands/sanboot_cmd.c')
| -rw-r--r-- | src/hci/commands/sanboot_cmd.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/src/hci/commands/sanboot_cmd.c b/src/hci/commands/sanboot_cmd.c index 14055a8c4..5954b6326 100644 --- a/src/hci/commands/sanboot_cmd.c +++ b/src/hci/commands/sanboot_cmd.c @@ -46,30 +46,38 @@ struct sanboot_options { }; /** "sanboot" option list */ -static struct option_descriptor sanboot_opts[] = { - OPTION_DESC ( "drive", 'd', required_argument, - struct sanboot_options, drive, parse_integer ), - OPTION_DESC ( "no-describe", 'n', no_argument, - struct sanboot_options, no_describe, parse_flag ), - OPTION_DESC ( "keep", 'k', no_argument, - struct sanboot_options, keep, parse_flag ), +static union { + /* "sanboot" takes all three options */ + struct option_descriptor sanboot[3]; + /* "sanhook" takes only --drive and --no-describe */ + struct option_descriptor sanhook[2]; + /* "sanunhook" takes only --drive */ + struct option_descriptor sanunhook[1]; +} opts = { + .sanboot = { + OPTION_DESC ( "drive", 'd', required_argument, + struct sanboot_options, drive, parse_integer ), + OPTION_DESC ( "no-describe", 'n', no_argument, + struct sanboot_options, no_describe, parse_flag ), + OPTION_DESC ( "keep", 'k', no_argument, + struct sanboot_options, keep, parse_flag ), + }, }; + /** "sanhook" command descriptor */ static struct command_descriptor sanhook_cmd = - COMMAND_DESC ( struct sanboot_options, sanboot_opts, 1, 1, - "[--drive <drive>] [--no-describe] <root-path>" ); + COMMAND_DESC ( struct sanboot_options, opts.sanhook, 1, 1, + "<root-path>" ); /** "sanboot" command descriptor */ static struct command_descriptor sanboot_cmd = - COMMAND_DESC ( struct sanboot_options, sanboot_opts, 0, 1, - "[--drive <drive>] [--no-describe] [--keep] " + COMMAND_DESC ( struct sanboot_options, opts.sanboot, 0, 1, "[<root-path>]" ); /** "sanunhook" command descriptor */ static struct command_descriptor sanunhook_cmd = - COMMAND_DESC ( struct sanboot_options, sanboot_opts, 0, 0, - "[--drive <drive>]" ); + COMMAND_DESC ( struct sanboot_options, opts.sanunhook, 0, 0, NULL ); /** * The "sanboot", "sanhook" and "sanunhook" commands |