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object: Make option help nicer to read 

Just like in qemu_opts_print_help(), print the object name as a caption
instead of on every single line, indent all options, add angle brackets
around types, and align the descriptions after 24 characters.

Also, indent every object name in the list of available objects.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2018-10-19 18:49:28 +02:00 committed by Kevin Wolf
parent 9c2762b406
commit da3273adcd
1 changed files with 10 additions and 3 deletions
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13
vl.c
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@ -2743,7 +2743,7 @@ static bool object_create_initial(const char *type, QemuOpts *opts)
list = object_class_get_list_sorted(TYPE_USER_CREATABLE, false);
for (l = list; l != NULL; l = l->next) {
ObjectClass *oc = OBJECT_CLASS(l->data);
printf("%s\n", object_class_get_name(oc));
printf(" %s\n", object_class_get_name(oc));
}
g_slist_free(list);
exit(0);
@ -2765,14 +2765,21 @@ static bool object_create_initial(const char *type, QemuOpts *opts)
}
str = g_string_new(NULL);
g_string_append_printf(str, "%s.%s=%s", type,
prop->name, prop->type);
g_string_append_printf(str, " %s=<%s>", prop->name, prop->type);
if (prop->description) {
if (str->len < 24) {
g_string_append_printf(str, "%*s", 24 - (int)str->len, "");
}
g_string_append_printf(str, " - %s", prop->description);
}
g_ptr_array_add(array, g_string_free(str, false));
}
g_ptr_array_sort(array, (GCompareFunc)qemu_pstrcmp0);
if (array->len > 0) {
printf("%s options:\n", type);
} else {
printf("There are no options for %s.\n", type);
}
for (i = 0; i < array->len; i++) {
printf("%s\n", (char *)array->pdata[i]);
}