config/conf.c

   1 /*
   2  * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
   3  * Released under the terms of the GNU GPL v2.0.
   4  */
   5
   6 #include <locale.h>
   7 #include <ctype.h>
   8 #include <limits.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11 #include <string.h>
  12 #include <time.h>
  13 #include <unistd.h>
  14 #include <getopt.h>
  15 #include <sys/stat.h>
  16 #include <sys/time.h>
  17 #include <errno.h>
  18
  19 #include "lkc.h"
  20
  21 static void conf(struct menu *menu);
  22 static void check_conf(struct menu *menu);
  23
  24 enum input_mode {
  25         oldaskconfig,
  26         oldconfig,
  27         allnoconfig,
  28         allyesconfig,
  29         allmodconfig,
  30         alldefconfig,
  31         randconfig,
  32         defconfig,
  33         savedefconfig,
  34         listnewconfig,
  35         oldnoconfig,
  36 };
  37 static enum input_mode input_mode = oldaskconfig;
  38
  39 static int indent = 1;
  40 static int tty_stdio;
  41 static int conf_cnt;
  42 static char line[PATH_MAX];
  43 static struct menu *rootEntry;
  44
  45 static void print_help(struct menu *menu)
  46 {
  47         struct gstr help = str_new();
  48
  49         menu_get_ext_help(menu, &help);
  50
  51         printf("\n%s\n", str_get(&help));
  52         str_free(&help);
  53 }
  54
  55 static void strip(char *str)
  56 {
  57         char *p = str;
  58         int l;
  59
  60         while ((isspace(*p)))
  61                 p++;
  62         l = strlen(p);
  63         if (p != str)
  64                 memmove(str, p, l + 1);
  65         if (!l)
  66                 return;
  67         p = str + l - 1;
  68         while ((isspace(*p)))
  69                 *p-- = 0;
  70 }
  71
  72 /* Helper function to facilitate fgets() by Jean Sacren. */
  73 static void xfgets(char *str, int size, FILE *in)
  74 {
  75         if (!fgets(str, size, in))
  76                 fprintf(stderr, "\nError in reading or end of file.\n");
  77
  78         if (!tty_stdio)
  79                 printf("%s", str);
  80 }
  81
  82 static int conf_askvalue(struct symbol *sym, const char *def)
  83 {
  84         enum symbol_type type = sym_get_type(sym);
  85
  86         if (!sym_has_value(sym))
  87                 printf(_("(NEW) "));
  88
  89         line[0] = '\n';
  90         line[1] = 0;
  91
  92         if (!sym_is_changable(sym)) {
  93                 printf("%s\n", def);
  94                 line[0] = '\n';
  95                 line[1] = 0;
  96                 return 0;
  97         }
  98
  99         switch (input_mode) {
 100         case oldconfig:
 101                 if (sym_has_value(sym)) {
 102                         printf("%s\n", def);
 103                         return 0;
 104                 }
 105                 /* fall through */
 106         case oldaskconfig:
 107                 fflush(stdout);
 108                 xfgets(line, sizeof(line), stdin);
 109                 return 1;
 110         default:
 111                 break;
 112         }
 113
 114         switch (type) {
 115         case S_INT:
 116         case S_HEX:
 117         case S_STRING:
 118                 printf("%s\n", def);
 119                 return 1;
 120         default:
 121                 ;
 122         }
 123         printf("%s", line);
 124         return 1;
 125 }
 126
 127 static int conf_string(struct menu *menu)
 128 {
 129         struct symbol *sym = menu->sym;
 130         const char *def;
 131
 132         while (1) {
 133                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 134                 printf("(%s) ", sym->name);
 135                 def = sym_get_string_value(sym);
 136                 if (sym_get_string_value(sym))
 137                         printf("[%s] ", def);
 138                 if (!conf_askvalue(sym, def))
 139                         return 0;
 140                 switch (line[0]) {
 141                 case '\n':
 142                         break;
 143                 case '?':
 144                         /* print help */
 145                         if (line[1] == '\n') {
 146                                 print_help(menu);
 147                                 def = NULL;
 148                                 break;
 149                         }
 150                         /* fall through */
 151                 default:
 152                         line[strlen(line)-1] = 0;
 153                         def = line;
 154                 }
 155                 if (def && sym_set_string_value(sym, def))
 156                         return 0;
 157         }
 158 }
 159
 160 static int conf_sym(struct menu *menu)
 161 {
 162         struct symbol *sym = menu->sym;
 163         tristate oldval, newval;
 164
 165         while (1) {
 166                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 167                 if (sym->name)
 168                         printf("(%s) ", sym->name);
 169                 putchar('[');
 170                 oldval = sym_get_tristate_value(sym);
 171                 switch (oldval) {
 172                 case no:
 173                         putchar('N');
 174                         break;
 175                 case mod:
 176                         putchar('M');
 177                         break;
 178                 case yes:
 179                         putchar('Y');
 180                         break;
 181                 }
 182                 if (oldval != no && sym_tristate_within_range(sym, no))
 183                         printf("/n");
 184                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 185                         printf("/m");
 186                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 187                         printf("/y");
 188                 printf("/?] ");
 189                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
 190                         return 0;
 191                 strip(line);
 192
 193                 switch (line[0]) {
 194                 case 'n':
 195                 case 'N':
 196                         newval = no;
 197                         if (!line[1] || !strcmp(&line[1], "o"))
 198                                 break;
 199                         continue;
 200                 case 'm':
 201                 case 'M':
 202                         newval = mod;
 203                         if (!line[1])
 204                                 break;
 205                         continue;
 206                 case 'y':
 207                 case 'Y':
 208                         newval = yes;
 209                         if (!line[1] || !strcmp(&line[1], "es"))
 210                                 break;
 211                         continue;
 212                 case 0:
 213                         newval = oldval;
 214                         break;
 215                 case '?':
 216                         goto help;
 217                 default:
 218                         continue;
 219                 }
 220                 if (sym_set_tristate_value(sym, newval))
 221                         return 0;
 222 help:
 223                 print_help(menu);
 224         }
 225 }
 226
 227 static int conf_choice(struct menu *menu)
 228 {
 229         struct symbol *sym, *def_sym;
 230         struct menu *child;
 231         bool is_new;
 232
 233         sym = menu->sym;
 234         is_new = !sym_has_value(sym);
 235         if (sym_is_changable(sym)) {
 236                 conf_sym(menu);
 237                 sym_calc_value(sym);
 238                 switch (sym_get_tristate_value(sym)) {
 239                 case no:
 240                         return 1;
 241                 case mod:
 242                         return 0;
 243                 case yes:
 244                         break;
 245                 }
 246         } else {
 247                 switch (sym_get_tristate_value(sym)) {
 248                 case no:
 249                         return 1;
 250                 case mod:
 251                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 252                         return 0;
 253                 case yes:
 254                         break;
 255                 }
 256         }
 257
 258         while (1) {
 259                 int cnt, def;
 260
 261                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 262                 def_sym = sym_get_choice_value(sym);
 263                 cnt = def = 0;
 264                 line[0] = 0;
 265                 for (child = menu->list; child; child = child->next) {
 266                         if (!menu_is_visible(child))
 267                                 continue;
 268                         if (!child->sym) {
 269                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
 270                                 continue;
 271                         }
 272                         cnt++;
 273                         if (child->sym == def_sym) {
 274                                 def = cnt;
 275                                 printf("%*c", indent, '>');
 276                         } else
 277                                 printf("%*c", indent, ' ');
 278                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
 279                         if (child->sym->name)
 280                                 printf(" (%s)", child->sym->name);
 281                         if (!sym_has_value(child->sym))
 282                                 printf(_(" (NEW)"));
 283                         printf("\n");
 284                 }
 285                 printf(_("%*schoice"), indent - 1, "");
 286                 if (cnt == 1) {
 287                         printf("[1]: 1\n");
 288                         goto conf_childs;
 289                 }
 290                 printf("[1-%d?]: ", cnt);
 291                 switch (input_mode) {
 292                 case oldconfig:
 293                         if (!is_new) {
 294                                 cnt = def;
 295                                 printf("%d\n", cnt);
 296                                 break;
 297                         }
 298                         /* fall through */
 299                 case oldaskconfig:
 300                         fflush(stdout);
 301                         xfgets(line, sizeof(line), stdin);
 302                         strip(line);
 303                         if (line[0] == '?') {
 304                                 print_help(menu);
 305                                 continue;
 306                         }
 307                         if (!line[0])
 308                                 cnt = def;
 309                         else if (isdigit(line[0]))
 310                                 cnt = atoi(line);
 311                         else
 312                                 continue;
 313                         break;
 314                 default:
 315                         break;
 316                 }
 317
 318         conf_childs:
 319                 for (child = menu->list; child; child = child->next) {
 320                         if (!child->sym || !menu_is_visible(child))
 321                                 continue;
 322                         if (!--cnt)
 323                                 break;
 324                 }
 325                 if (!child)
 326                         continue;
 327                 if (line[0] && line[strlen(line) - 1] == '?') {
 328                         print_help(child);
 329                         continue;
 330                 }
 331                 sym_set_choice_value(sym, child->sym);
 332                 for (child = child->list; child; child = child->next) {
 333                         indent += 2;
 334                         conf(child);
 335                         indent -= 2;
 336                 }
 337                 return 1;
 338         }
 339 }
 340
 341 static void conf(struct menu *menu)
 342 {
 343         struct symbol *sym;
 344         struct property *prop;
 345         struct menu *child;
 346
 347         if (!menu_is_visible(menu))
 348                 return;
 349
 350         sym = menu->sym;
 351         prop = menu->prompt;
 352         if (prop) {
 353                 const char *prompt;
 354
 355                 switch (prop->type) {
 356                 case P_MENU:
 357                         /*
 358                          * Except in oldaskconfig mode, we show only menus that
 359                          * contain new symbols.
 360                          */
 361                         if (input_mode != oldaskconfig && rootEntry != menu) {
 362                                 check_conf(menu);
 363                                 return;
 364                         }
 365                         /* fall through */
 366                 case P_COMMENT:
 367                         prompt = menu_get_prompt(menu);
 368                         if (prompt)
 369                                 printf("%*c\n%*c %s\n%*c\n",
 370                                         indent, '*',
 371                                         indent, '*', _(prompt),
 372                                         indent, '*');
 373                 default:
 374                         ;
 375                 }
 376         }
 377
 378         if (!sym)
 379                 goto conf_childs;
 380
 381         if (sym_is_choice(sym)) {
 382                 conf_choice(menu);
 383                 if (sym->curr.tri != mod)
 384                         return;
 385                 goto conf_childs;
 386         }
 387
 388         switch (sym->type) {
 389         case S_INT:
 390         case S_HEX:
 391         case S_STRING:
 392                 conf_string(menu);
 393                 break;
 394         default:
 395                 conf_sym(menu);
 396                 break;
 397         }
 398
 399 conf_childs:
 400         if (sym)
 401                 indent += 2;
 402         for (child = menu->list; child; child = child->next)
 403                 conf(child);
 404         if (sym)
 405                 indent -= 2;
 406 }
 407
 408 static void check_conf(struct menu *menu)
 409 {
 410         struct symbol *sym;
 411         struct menu *child;
 412
 413         if (!menu_is_visible(menu))
 414                 return;
 415
 416         sym = menu->sym;
 417         if (sym && !sym_has_value(sym)) {
 418                 if (sym_is_changable(sym) ||
 419                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 420                         if (input_mode == listnewconfig) {
 421                                 if (sym->name && !sym_is_choice_value(sym)) {
 422                                         printf("%s%s\n", CONFIG_, sym->name);
 423                                 }
 424                         } else {
 425                                 if (!conf_cnt++)
 426                                         printf(_("*\n* Restart config...\n*\n"));
 427                                 rootEntry = menu_get_parent_menu(menu);
 428                                 conf(rootEntry);
 429                         }
 430                 }
 431         }
 432
 433         for (child = menu->list; child; child = child->next)
 434                 check_conf(child);
 435 }
 436
 437 static struct option long_opts[] = {
 438         {"askconfig",       no_argument,       NULL, oldaskconfig},
 439         {"config",          no_argument,       NULL, oldconfig},
 440         {"defconfig",       optional_argument, NULL, defconfig},
 441         {"savedefconfig",   required_argument, NULL, savedefconfig},
 442         {"allnoconfig",     no_argument,       NULL, allnoconfig},
 443         {"allyesconfig",    no_argument,       NULL, allyesconfig},
 444         {"allmodconfig",    no_argument,       NULL, allmodconfig},
 445         {"alldefconfig",    no_argument,       NULL, alldefconfig},
 446         {"randconfig",      no_argument,       NULL, randconfig},
 447         {"listnewconfig",   no_argument,       NULL, listnewconfig},
 448         {"noconfig",        no_argument,       NULL, oldnoconfig},
 449         {NULL, 0, NULL, 0}
 450 };
 451
 452 static void conf_usage(const char *progname)
 453 {
 454
 455         printf("Usage: %s [-s] [option] <kconfig-file>\n", progname);
 456         printf("[option] is _one_ of the following:\n");
 457         printf("  --listnewconfig         List new options\n");
 458         printf("  --askconfig             Start a new configuration using a line-oriented program\n");
 459         printf("  --config                Update a configuration using a provided .config as base\n");
 460         printf("  --silentconfig          Same as config, but quietly, additionally update deps\n");
 461         printf("  --noconfig              Same as silentconfig but set new symbols to no\n");
 462         printf("  --defconfig <file>      New config with default defined in <file>\n");
 463         printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
 464         printf("  --allnoconfig           New config where all options are answered with no\n");
 465         printf("  --allyesconfig          New config where all options are answered with yes\n");
 466         printf("  --allmodconfig          New config where all options are answered with mod\n");
 467         printf("  --alldefconfig          New config with all symbols set to default\n");
 468         printf("  --randconfig            New config with random answer to all options\n");
 469 }
 470
 471 int main(int ac, char **av)
 472 {
 473         const char *progname = av[0];
 474         int opt;
 475         const char *name, *defconfig_file = NULL /* gcc uninit */;
 476         struct stat tmpstat;
 477
 478         setlocale(LC_ALL, "");
 479         bindtextdomain(PACKAGE, LOCALEDIR);
 480         textdomain(PACKAGE);
 481
 482         tty_stdio = isatty(0) && isatty(1);
 483
 484         while ((opt = getopt_long(ac, av, "s", long_opts, NULL)) != -1) {
 485                 if (opt == 's') {
 486                         conf_set_message_callback(NULL);
 487                         continue;
 488                 }
 489                 input_mode = (enum input_mode)opt;
 490                 switch (opt) {
 491                 case defconfig:
 492                 case savedefconfig:
 493                         defconfig_file = optarg;
 494                         break;
 495                 case randconfig:
 496                 {
 497                         struct timeval now;
 498                         unsigned int seed;
 499                         char *seed_env;
 500
 501                         /*
 502                          * Use microseconds derived seed,
 503                          * compensate for systems where it may be zero
 504                          */
 505                         gettimeofday(&now, NULL);
 506                         seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
 507
 508                         seed_env = getenv("KCONFIG_SEED");
 509                         if( seed_env && *seed_env ) {
 510                                 char *endp;
 511                                 int tmp = (int)strtol(seed_env, &endp, 0);
 512                                 if (*endp == '\0') {
 513                                         seed = tmp;
 514                                 }
 515                         }
 516                         fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
 517                         srand(seed);
 518                         break;
 519                 }
 520                 case oldaskconfig:
 521                 case oldconfig:
 522                 case allnoconfig:
 523                 case allyesconfig:
 524                 case allmodconfig:
 525                 case alldefconfig:
 526                 case listnewconfig:
 527                 case oldnoconfig:
 528                         break;
 529                 case '?':
 530                         conf_usage(progname);
 531                         exit(1);
 532                         break;
 533                 }
 534         }
 535         if (ac == optind) {
 536                 fprintf(stderr, _("%s: Kconfig file missing\n"), av[0]);
 537                 conf_usage(progname);
 538                 exit(1);
 539         }
 540         name = av[optind];
 541         conf_parse(name);
 542         //zconfdump(stdout);
 543
 544         switch (input_mode) {
 545         case defconfig:
 546                 if (!defconfig_file)
 547                         defconfig_file = conf_get_default_confname();
 548                 if (conf_read(defconfig_file)) {
 549                         fprintf(stderr,
 550                                 _("***\n"
 551                                   "*** Can't find default configuration \"%s\"!\n"
 552                                   "***\n"),
 553                                 defconfig_file);
 554                         exit(1);
 555                 }
 556                 break;
 557         case savedefconfig:
 558         case oldaskconfig:
 559         case oldconfig:
 560         case listnewconfig:
 561         case oldnoconfig:
 562                 conf_read(NULL);
 563                 break;
 564         case allnoconfig:
 565         case allyesconfig:
 566         case allmodconfig:
 567         case alldefconfig:
 568         case randconfig:
 569                 name = getenv("KCONFIG_ALLCONFIG");
 570                 if (!name)
 571                         break;
 572                 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
 573                         if (conf_read_simple(name, S_DEF_USER)) {
 574                                 fprintf(stderr,
 575                                         _("*** Can't read seed configuration \"%s\"!\n"),
 576                                         name);
 577                                 exit(1);
 578                         }
 579                         break;
 580                 }
 581                 switch (input_mode) {
 582                 case allnoconfig:       name = "allno.config"; break;
 583                 case allyesconfig:      name = "allyes.config"; break;
 584                 case allmodconfig:      name = "allmod.config"; break;
 585                 case alldefconfig:      name = "alldef.config"; break;
 586                 case randconfig:        name = "allrandom.config"; break;
 587                 default: break;
 588                 }
 589                 if (conf_read_simple(name, S_DEF_USER) &&
 590                     conf_read_simple("all.config", S_DEF_USER)) {
 591                         fprintf(stderr,
 592                                 _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
 593                                 name);
 594                         exit(1);
 595                 }
 596                 break;
 597         default:
 598                 break;
 599         }
 600
 601         switch (input_mode) {
 602         case allnoconfig:
 603                 conf_set_all_new_symbols(def_no);
 604                 break;
 605         case allyesconfig:
 606                 conf_set_all_new_symbols(def_yes);
 607                 break;
 608         case allmodconfig:
 609                 conf_set_all_new_symbols(def_mod);
 610                 break;
 611         case alldefconfig:
 612                 conf_set_all_new_symbols(def_default);
 613                 break;
 614         case randconfig:
 615                 /* Really nothing to do in this loop */
 616                 while (conf_set_all_new_symbols(def_random)) ;
 617                 break;
 618         case defconfig:
 619                 conf_set_all_new_symbols(def_default);
 620                 break;
 621         case savedefconfig:
 622                 break;
 623         case oldaskconfig:
 624                 rootEntry = &rootmenu;
 625                 conf(&rootmenu);
 626                 input_mode = oldconfig;
 627                 /* fall through */
 628         case oldconfig:
 629         case listnewconfig:
 630         case oldnoconfig:
 631                 /* Update until a loop caused no more changes */
 632                 do {
 633                         conf_cnt = 0;
 634                         check_conf(&rootmenu);
 635                 } while (conf_cnt);
 636                 break;
 637         }
 638
 639         if (input_mode == savedefconfig) {
 640                 if (conf_write_defconfig(defconfig_file)) {
 641                         fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
 642                                 defconfig_file);
 643                         return 1;
 644                 }
 645         } else if (input_mode != listnewconfig) {
 646                 /*
 647                  * build so we shall update autoconf.
 648                  */
 649                 if (conf_write(NULL)) {
 650                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 651                         exit(1);
 652                 }
 653                 if (conf_write_autoconf()) {
 654                         fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
 655                         return 1;
 656                 }
 657         }
 658         return 0;
 659 }