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kconfig: use getopt() in conf.c for handling command line arguments 

Switch from doing our own parsing of command line arguments to
using getopt(3) to do it.  Aside from simplifying things, this allows us to
specify multiple arguments; the old code could only accept two arguments
(input_mode and kconfig name).

Note some subtle changes:
 - The argument '-?' is no longer supported.
 - '-h' is not treated as an error, so output goes to stdout, and we
   exit with '0'.
 - There is no compatibility checking amongst arguments; the last option
   will simply override earlier options.  For example, 'conf -n -y foo'
   is perfectly valid now (input_mode will be set_yes).  Previously, that
   would have been an error ("can't find file -y").

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
This commit is contained in:
Andres Salomon 2007-12-17 01:34:58 -05:00 committed by Sam Ravnborg
parent 666ab414fe
commit 2f4b489b77
1 changed files with 11 additions and 13 deletions
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24
scripts/kconfig/conf.c
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@ -495,12 +495,12 @@ static void check_conf(struct menu *menu)
int main(int ac, char **av)
{
int i = 1;
int opt;
const char *name;
struct stat tmpstat;
if (ac > i && av[i][0] == '-') {
switch (av[i++][1]) {
while ((opt = getopt(ac, av, "osdD:nmyrh")) != -1) {
switch (opt) {
case 'o':
input_mode = ask_new;
break;
@ -513,12 +513,7 @@ int main(int ac, char **av)
break;
case 'D':
input_mode = set_default;
defconfig_file = av[i++];
if (!defconfig_file) {
printf(_("%s: No default config file specified\n"),
av[0]);
exit(1);
}
defconfig_file = optarg;
break;
case 'n':
input_mode = set_no;
@ -534,16 +529,19 @@ int main(int ac, char **av)
srandom(time(NULL));
break;
case 'h':
case '?':
fprintf(stderr, "See README for usage info\n");
printf("See README for usage info\n");
exit(0);
break;
default:
fprintf(stderr, "See README for usage info\n");
exit(1);
}
}
name = av[i];
if (!name) {
if (ac == optind) {
printf(_("%s: Kconfig file missing\n"), av[0]);
exit(1);
}
name = av[optind];
conf_parse(name);
//zconfdump(stdout);
switch (input_mode) {