kconfig: hide irrelevant sub-menus for oldconfig
[carl9170fw.git] / config / conf.c
index cdbdb1129eeb3067b26451c0851d014d709a4ad2..c4bc255a95d5232b0249e63d99a529da2064ed9d 100644 (file)
@@ -5,6 +5,7 @@
 
 #include <locale.h>
 #include <ctype.h>
+#include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <getopt.h>
 #include <sys/stat.h>
 #include <sys/time.h>
+#include <errno.h>
 
 #include "lkc.h"
 
 static void conf(struct menu *menu);
 static void check_conf(struct menu *menu);
-static void xfgets(char *str, int size, FILE *in);
 
 enum input_mode {
        oldaskconfig,
@@ -32,13 +33,13 @@ enum input_mode {
        savedefconfig,
        listnewconfig,
        oldnoconfig,
-} input_mode = oldaskconfig;
+};
+static enum input_mode input_mode = oldaskconfig;
 
 static int indent = 1;
 static int tty_stdio;
-static int valid_stdin = 1;
 static int conf_cnt;
-static char line[128];
+static char line[PATH_MAX];
 static struct menu *rootEntry;
 
 static void print_help(struct menu *menu)
@@ -68,14 +69,14 @@ static void strip(char *str)
                *p-- = 0;
 }
 
-static void check_stdin(void)
+/* Helper function to facilitate fgets() by Jean Sacren. */
+static void xfgets(char *str, int size, FILE *in)
 {
-       if (!valid_stdin) {
-               printf(_("aborted!\n\n"));
-               printf(_("Console input/output is redirected. "));
-               printf(_("Run 'make config' to update configuration.\n\n"));
-               exit(1);
-       }
+       if (!fgets(str, size, in))
+               fprintf(stderr, "\nError in reading or end of file.\n");
+
+       if (!tty_stdio)
+               printf("%s", str);
 }
 
 static int conf_askvalue(struct symbol *sym, const char *def)
@@ -101,13 +102,10 @@ static int conf_askvalue(struct symbol *sym, const char *def)
                        printf("%s\n", def);
                        return 0;
                }
-               check_stdin();
                /* fall through */
        case oldaskconfig:
                fflush(stdout);
-               xfgets(line, 128, stdin);
-               if (!tty_stdio)
-                       printf("\n");
+               xfgets(line, sizeof(line), stdin);
                return 1;
        default:
                break;
@@ -187,9 +185,7 @@ static int conf_sym(struct menu *menu)
                        printf("/m");
                if (oldval != yes && sym_tristate_within_range(sym, yes))
                        printf("/y");
-               if (menu_has_help(menu))
-                       printf("/?");
-               printf("] ");
+               printf("/?] ");
                if (!conf_askvalue(sym, sym_get_string_value(sym)))
                        return 0;
                strip(line);
@@ -291,10 +287,7 @@ static int conf_choice(struct menu *menu)
                        printf("[1]: 1\n");
                        goto conf_childs;
                }
-               printf("[1-%d", cnt);
-               if (menu_has_help(menu))
-                       printf("?");
-               printf("]: ");
+               printf("[1-%d?]: ", cnt);
                switch (input_mode) {
                case oldconfig:
                        if (!is_new) {
@@ -302,11 +295,10 @@ static int conf_choice(struct menu *menu)
                                printf("%d\n", cnt);
                                break;
                        }
-                       check_stdin();
                        /* fall through */
                case oldaskconfig:
                        fflush(stdout);
-                       xfgets(line, 128, stdin);
+                       xfgets(line, sizeof(line), stdin);
                        strip(line);
                        if (line[0] == '?') {
                                print_help(menu);
@@ -362,9 +354,11 @@ static void conf(struct menu *menu)
 
                switch (prop->type) {
                case P_MENU:
-                       if ((input_mode == listnewconfig ||
-                            input_mode == oldnoconfig) &&
-                           rootEntry != menu) {
+                       /*
+                        * Except in oldaskconfig mode, we show only menus that
+                        * contain new symbols.
+                        */
+                       if (input_mode != oldaskconfig && rootEntry != menu) {
                                check_conf(menu);
                                return;
                        }
@@ -427,7 +421,7 @@ static void check_conf(struct menu *menu)
                                if (sym->name && !sym_is_choice_value(sym)) {
                                        printf("%s%s\n", CONFIG_, sym->name);
                                }
-                       } else if (input_mode != oldnoconfig) {
+                       } else {
                                if (!conf_cnt++)
                                        printf(_("*\n* Restart config...\n*\n"));
                                rootEntry = menu_get_parent_menu(menu);
@@ -458,7 +452,7 @@ static struct option long_opts[] = {
 static void conf_usage(const char *progname)
 {
 
-       printf("Usage: %s [option] <kconfig-file>\n", 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("  --askconfig             Start a new configuration using a line-oriented program\n");
@@ -485,9 +479,13 @@ int main(int ac, char **av)
        bindtextdomain(PACKAGE, LOCALEDIR);
        textdomain(PACKAGE);
 
-       tty_stdio = isatty(0) && isatty(1) && isatty(2);
+       tty_stdio = isatty(0) && isatty(1);
 
-       while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
+       while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
+               if (opt == 's') {
+                       conf_set_message_callback(NULL);
+                       continue;
+               }
                input_mode = (enum input_mode)opt;
                switch (opt) {
                case defconfig:
@@ -498,14 +496,24 @@ int main(int ac, char **av)
                {
                        struct timeval now;
                        unsigned int seed;
+                       char *seed_env;
 
                        /*
                         * Use microseconds derived seed,
                         * compensate for systems where it may be zero
                         */
                        gettimeofday(&now, NULL);
-
                        seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
+
+                       seed_env = getenv("KCONFIG_SEED");
+                       if( seed_env && *seed_env ) {
+                               char *endp;
+                               int tmp = (int)strtol(seed_env, &endp, 0);
+                               if (*endp == '\0') {
+                                       seed = tmp;
+                               }
+                       }
+                       fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
                        srand(seed);
                        break;
                }
@@ -525,7 +533,7 @@ int main(int ac, char **av)
                }
        }
        if (ac == optind) {
-               printf(_("%s: Kconfig file missing\n"), av[0]);
+               fprintf(stderr, _("%s: Kconfig file missing\n"), av[0]);
                conf_usage(progname);
                exit(1);
        }
@@ -538,9 +546,11 @@ int main(int ac, char **av)
                if (!defconfig_file)
                        defconfig_file = conf_get_default_confname();
                if (conf_read(defconfig_file)) {
-                       printf(_("***\n"
-                               "*** Can't find default configuration \"%s\"!\n"
-                               "***\n"), defconfig_file);
+                       fprintf(stderr,
+                               _("***\n"
+                                 "*** Can't find default configuration \"%s\"!\n"
+                                 "***\n"),
+                               defconfig_file);
                        exit(1);
                }
                break;
@@ -588,8 +598,6 @@ int main(int ac, char **av)
                break;
        }
 
-       valid_stdin = tty_stdio;
-
        switch (input_mode) {
        case allnoconfig:
                conf_set_all_new_symbols(def_no);
@@ -604,7 +612,8 @@ int main(int ac, char **av)
                conf_set_all_new_symbols(def_default);
                break;
        case randconfig:
-               conf_set_all_new_symbols(def_random);
+               /* Really nothing to do in this loop */
+               while (conf_set_all_new_symbols(def_random)) ;
                break;
        case defconfig:
                conf_set_all_new_symbols(def_default);
@@ -623,16 +632,14 @@ int main(int ac, char **av)
                do {
                        conf_cnt = 0;
                        check_conf(&rootmenu);
-               } while (conf_cnt &&
-                        (input_mode != listnewconfig &&
-                         input_mode != oldnoconfig));
+               } while (conf_cnt);
                break;
        }
 
        if (input_mode == savedefconfig) {
                if (conf_write_defconfig(defconfig_file)) {
                        fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
-                               defconfig_file);
+                               defconfig_file);
                        return 1;
                }
        } else if (input_mode != listnewconfig) {
@@ -650,12 +657,3 @@ int main(int ac, char **av)
        }
        return 0;
 }
-
-/*
- * Helper function to facilitate fgets() by Jean Sacren.
- */
-void xfgets(char *str, int size, FILE *in)
-{
-       if (fgets(str, size, in) == NULL)
-               fprintf(stderr, "\nError in reading or end of file.\n");
-}