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kconfig: Add option to get the full help text with listnewconfig

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make listnewconfig will list the individual options that need to be set.
This is useful but there's no easy way to get the help text associated
with the options at the same time. Introduce a new targe
'make helpnewconfig' which lists the full help text of all the
new options as well. This makes it easier to automatically generate
changes that are easy for humans to review. This command also adds
markers between each option for easier parsing.

Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Laura Abbott 2019-11-04 17:10:08 -05:00 committed by Masahiro Yamada
parent af7db99a1c
commit 5d8b42aa7c
2 changed files with 16 additions and 2 deletions
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5
scripts/kconfig/Makefile
View File

@ -66,7 +66,9 @@ localyesconfig localmodconfig: $(obj)/conf
# syncconfig has become an internal implementation detail and is now
# deprecated for external use
simple-targets := oldconfig allnoconfig allyesconfig allmodconfig \
alldefconfig randconfig listnewconfig olddefconfig syncconfig
alldefconfig randconfig listnewconfig olddefconfig syncconfig \
helpnewconfig
PHONY += $(simple-targets)
$(simple-targets): $(obj)/conf
@ -134,6 +136,7 @@ help:
@echo ' alldefconfig - New config with all symbols set to default'
@echo ' randconfig - New config with random answer to all options'
@echo ' listnewconfig - List new options'
@echo ' helpnewconfig - List new options and help text'
@echo ' olddefconfig - Same as oldconfig but sets new symbols to their'
@echo ' default value without prompting'
@echo ' kvmconfig - Enable additional options for kvm guest kernel support'

13
scripts/kconfig/conf.c
View File

@ -32,6 +32,7 @@ enum input_mode {
defconfig,
savedefconfig,
listnewconfig,
helpnewconfig,
olddefconfig,
};
static enum input_mode input_mode = oldaskconfig;
@ -434,6 +435,11 @@ static void check_conf(struct menu *menu)
printf("%s%s=%s\n", CONFIG_, sym->name, str);
}
}
} else if (input_mode == helpnewconfig) {
printf("-----\n");
print_help(menu);
printf("-----\n");
} else {
if (!conf_cnt++)
printf("*\n* Restart config...\n*\n");
@ -459,6 +465,7 @@ static struct option long_opts[] = {
{"alldefconfig", no_argument, NULL, alldefconfig},
{"randconfig", no_argument, NULL, randconfig},
{"listnewconfig", no_argument, NULL, listnewconfig},
{"helpnewconfig", no_argument, NULL, helpnewconfig},
{"olddefconfig", no_argument, NULL, olddefconfig},
{NULL, 0, NULL, 0}
};
@ -469,6 +476,7 @@ static void conf_usage(const char *progname)
printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
printf("[option] is _one_ of the following:\n");
printf(" --listnewconfig List new options\n");
printf(" --helpnewconfig List new options and help text\n");
printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
printf(" --oldconfig Update a configuration using a provided .config as base\n");
printf(" --syncconfig Similar to oldconfig but generates configuration in\n"
@ -543,6 +551,7 @@ int main(int ac, char **av)
case allmodconfig:
case alldefconfig:
case listnewconfig:
case helpnewconfig:
case olddefconfig:
break;
case '?':
@ -576,6 +585,7 @@ int main(int ac, char **av)
case oldaskconfig:
case oldconfig:
case listnewconfig:
case helpnewconfig:
case olddefconfig:
conf_read(NULL);
break;
@ -657,6 +667,7 @@ int main(int ac, char **av)
/* fall through */
case oldconfig:
case listnewconfig:
case helpnewconfig:
case syncconfig:
/* Update until a loop caused no more changes */
do {
@ -675,7 +686,7 @@ int main(int ac, char **av)
defconfig_file);
return 1;
}
} else if (input_mode != listnewconfig) {
} else if (input_mode != listnewconfig && input_mode != helpnewconfig) {
if (!no_conf_write && conf_write(NULL)) {
fprintf(stderr, "\n*** Error during writing of the configuration.\n\n");
exit(1);