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tools: improve the usage() output a bit

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer
2015-09-14 06:31:30 +10:00
parent a838d6d1cd
commit c89eb2f37b
1 changed files with 36 additions and 24 deletions
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60
tools/ratbag-command.c
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@@ -66,32 +66,41 @@ struct ratbag_cmd {
static const struct ratbag_cmd *ratbag_commands[];
static void
usage_subcommand(const struct ratbag_cmd *cmd)
usage_subcommand(const struct ratbag_cmd *cmd, const char *prefix_in)
{
int i = 0;
int count;
const struct ratbag_cmd *sub;
char prefix[256];
if (cmd->subcommands[0] == NULL)
return;
sub = cmd->subcommands[0];
count = 20 - strlen(sub->name);
if (sub->args)
count -= 1 + strlen(sub->args);
if (count < 4)
count = 4;
while (sub) {
count = 40 - strlen(sub->name);
if (sub->args)
count -= 1 + strlen(sub->args);
if (count < 4)
count = 4;
sprintf(prefix, "%s%s%s%s ",
prefix_in,
cmd->name,
cmd->args ? " " : "",
cmd->args ? cmd->args : "");
count -= strlen(prefix);
if (sub->help)
printf("\t %s %s%s%s %.*s %s\n",
cmd->name,
printf(" %s%s%s%s %.*s %s\n",
prefix,
sub->name,
sub->args ? " " : "",
sub->args ? sub->args : "",
count, "....................", sub->help);
count,
".........................................",
sub->help);
usage_subcommand(sub);
usage_subcommand(sub, prefix);
sub = cmd->subcommands[++i];
}
@@ -111,18 +120,21 @@ usage(void)
program_invocation_short_name);
while (cmd) {
count = 20 - strlen(cmd->name);
count = 40 - strlen(cmd->name);
if (cmd->args)
count -= 1 + strlen(cmd->args);
if (count < 4)
count = 4;
printf(" %s%s%s %.*s %s\n",
cmd->name,
cmd->args ? " " : "",
cmd->args ? cmd->args : "",
count, "....................", cmd->help);
if (cmd->help)
printf(" %s%s%s %.*s %s\n",
cmd->name,
cmd->args ? " " : "",
cmd->args ? cmd->args : "",
count,
".........................................",
cmd->help);
usage_subcommand(cmd);
usage_subcommand(cmd, "");
cmd = ratbag_commands[++i];
}
@@ -701,7 +713,7 @@ ratbag_cmd_resolution_active_set(const struct ratbag_cmd *cmd,
static const struct ratbag_cmd cmd_resolution_active_set = {
.name = "set",
.cmd = ratbag_cmd_resolution_active_set,
.args = "N",
.args = "M",
.help = "Set the active resolution number",
.subcommands = { NULL },
};
@@ -785,7 +797,7 @@ ratbag_cmd_resolution_dpi_set(const struct ratbag_cmd *cmd,
static const struct ratbag_cmd cmd_resolution_dpi_set = {
.name = "set",
.cmd = ratbag_cmd_resolution_dpi_set,
.args = "N",
.args = "<dpi>",
.help = "Set the resolution in dpi",
.subcommands = { NULL },
};
@@ -853,8 +865,8 @@ ratbag_cmd_resolution(const struct ratbag_cmd *cmd,
static const struct ratbag_cmd cmd_resolution = {
.name = "resolution",
.cmd = ratbag_cmd_resolution,
.args = "[...]",
.help = "Modify a resolution",
.args = "N",
.help = NULL,
.subcommands = {
&cmd_resolution_active,
&cmd_resolution_dpi,
@@ -1116,8 +1128,8 @@ ratbag_cmd_profile(const struct ratbag_cmd *cmd,
static const struct ratbag_cmd cmd_profile = {
.name = "profile",
.cmd = ratbag_cmd_profile,
.args = "[...]",
.help = "Modify a profile",
.args = "<idx>",
.help = NULL,
.subcommands = {
&cmd_profile_active,
&cmd_resolution,