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 <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11 #include <time.h>
  12 #include <unistd.h>
  13 #include <getopt.h>
  14 #include <sys/stat.h>
  15 #include <sys/time.h>
  16
  17 #include "lkc.h"
  18
  19 static void conf(struct menu *menu);
  20 static void check_conf(struct menu *menu);
  21 static void xfgets(char *str, int size, FILE *in);
  22
  23 enum input_mode {
  24         oldaskconfig,
  25         oldconfig,
  26         allnoconfig,
  27         allyesconfig,
  28         allmodconfig,
  29         alldefconfig,
  30         randconfig,
  31         defconfig,
  32         savedefconfig,
  33         listnewconfig,
  34         oldnoconfig,
  35 } input_mode = oldaskconfig;
  36
  37 static int indent = 1;
  38 static int tty_stdio;
  39 static int valid_stdin = 1;
  40 static int conf_cnt;
  41 static char line[128];
  42 static struct menu *rootEntry;
  43
  44 static void print_help(struct menu *menu)
  45 {
  46         struct gstr help = str_new();
  47
  48         menu_get_ext_help(menu, &help);
  49
  50         printf("\n%s\n", str_get(&help));
  51         str_free(&help);
  52 }
  53
  54 static void strip(char *str)
  55 {
  56         char *p = str;
  57         int l;
  58
  59         while ((isspace(*p)))
  60                 p++;
  61         l = strlen(p);
  62         if (p != str)
  63                 memmove(str, p, l + 1);
  64         if (!l)
  65                 return;
  66         p = str + l - 1;
  67         while ((isspace(*p)))
  68                 *p-- = 0;
  69 }
  70
  71 static void check_stdin(void)
  72 {
  73         if (!valid_stdin) {
  74                 printf(_("aborted!\n\n"));
  75                 printf(_("Console input/output is redirected. "));
  76                 printf(_("Run 'make config' to update configuration.\n\n"));
  77                 exit(1);
  78         }
  79 }
  80
  81 static int conf_askvalue(struct symbol *sym, const char *def)
  82 {
  83         enum symbol_type type = sym_get_type(sym);
  84
  85         if (!sym_has_value(sym))
  86                 printf(_("(NEW) "));
  87
  88         line[0] = '\n';
  89         line[1] = 0;
  90
  91         if (!sym_is_changable(sym)) {
  92                 printf("%s\n", def);
  93                 line[0] = '\n';
  94                 line[1] = 0;
  95                 return 0;
  96         }
  97
  98         switch (input_mode) {
  99         case oldconfig:
 100                 if (sym_has_value(sym)) {
 101                         printf("%s\n", def);
 102                         return 0;
 103                 }
 104                 check_stdin();
 105                 /* fall through */
 106         case oldaskconfig:
 107                 fflush(stdout);
 108                 xfgets(line, 128, stdin);
 109                 if (!tty_stdio)
 110                         printf("\n");
 111                 return 1;
 112         default:
 113                 break;
 114         }
 115
 116         switch (type) {
 117         case S_INT:
 118         case S_HEX:
 119         case S_STRING:
 120                 printf("%s\n", def);
 121                 return 1;
 122         default:
 123                 ;
 124         }
 125         printf("%s", line);
 126         return 1;
 127 }
 128
 129 static int conf_string(struct menu *menu)
 130 {
 131         struct symbol *sym = menu->sym;
 132         const char *def;
 133
 134         while (1) {
 135                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 136                 printf("(%s) ", sym->name);
 137                 def = sym_get_string_value(sym);
 138                 if (sym_get_string_value(sym))
 139                         printf("[%s] ", def);
 140                 if (!conf_askvalue(sym, def))
 141                         return 0;
 142                 switch (line[0]) {
 143                 case '\n':
 144                         break;
 145                 case '?':
 146                         /* print help */
 147                         if (line[1] == '\n') {
 148                                 print_help(menu);
 149                                 def = NULL;
 150                                 break;
 151                         }
 152                         /* fall through */
 153                 default:
 154                         line[strlen(line)-1] = 0;
 155                         def = line;
 156                 }
 157                 if (def && sym_set_string_value(sym, def))
 158                         return 0;
 159         }
 160 }
 161
 162 static int conf_sym(struct menu *menu)
 163 {
 164         struct symbol *sym = menu->sym;
 165         tristate oldval, newval;
 166
 167         while (1) {
 168                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 169                 if (sym->name)
 170                         printf("(%s) ", sym->name);
 171                 putchar('[');
 172                 oldval = sym_get_tristate_value(sym);
 173                 switch (oldval) {
 174                 case no:
 175                         putchar('N');
 176                         break;
 177                 case mod:
 178                         putchar('M');
 179                         break;
 180                 case yes:
 181                         putchar('Y');
 182                         break;
 183                 }
 184                 if (oldval != no && sym_tristate_within_range(sym, no))
 185                         printf("/n");
 186                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 187                         printf("/m");
 188                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 189                         printf("/y");
 190                 if (menu_has_help(menu))
 191                         printf("/?");
 192                 printf("] ");
 193                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
 194                         return 0;
 195                 strip(line);
 196
 197                 switch (line[0]) {
 198                 case 'n':
 199                 case 'N':
 200                         newval = no;
 201                         if (!line[1] || !strcmp(&line[1], "o"))
 202                                 break;
 203                         continue;
 204                 case 'm':
 205                 case 'M':
 206                         newval = mod;
 207                         if (!line[1])
 208                                 break;
 209                         continue;
 210                 case 'y':
 211                 case 'Y':
 212                         newval = yes;
 213                         if (!line[1] || !strcmp(&line[1], "es"))
 214                                 break;
 215                         continue;
 216                 case 0:
 217                         newval = oldval;
 218                         break;
 219                 case '?':
 220                         goto help;
 221                 default:
 222                         continue;
 223                 }
 224                 if (sym_set_tristate_value(sym, newval))
 225                         return 0;
 226 help:
 227                 print_help(menu);
 228         }
 229 }
 230
 231 static int conf_choice(struct menu *menu)
 232 {
 233         struct symbol *sym, *def_sym;
 234         struct menu *child;
 235         bool is_new;
 236
 237         sym = menu->sym;
 238         is_new = !sym_has_value(sym);
 239         if (sym_is_changable(sym)) {
 240                 conf_sym(menu);
 241                 sym_calc_value(sym);
 242                 switch (sym_get_tristate_value(sym)) {
 243                 case no:
 244                         return 1;
 245                 case mod:
 246                         return 0;
 247                 case yes:
 248                         break;
 249                 }
 250         } else {
 251                 switch (sym_get_tristate_value(sym)) {
 252                 case no:
 253                         return 1;
 254                 case mod:
 255                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 256                         return 0;
 257                 case yes:
 258                         break;
 259                 }
 260         }
 261
 262         while (1) {
 263                 int cnt, def;
 264
 265                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 266                 def_sym = sym_get_choice_value(sym);
 267                 cnt = def = 0;
 268                 line[0] = 0;
 269                 for (child = menu->list; child; child = child->next) {
 270                         if (!menu_is_visible(child))
 271                                 continue;
 272                         if (!child->sym) {
 273                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
 274                                 continue;
 275                         }
 276                         cnt++;
 277                         if (child->sym == def_sym) {
 278                                 def = cnt;
 279                                 printf("%*c", indent, '>');
 280                         } else
 281                                 printf("%*c", indent, ' ');
 282                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
 283                         if (child->sym->name)
 284                                 printf(" (%s)", child->sym->name);
 285                         if (!sym_has_value(child->sym))
 286                                 printf(_(" (NEW)"));
 287                         printf("\n");
 288                 }
 289                 printf(_("%*schoice"), indent - 1, "");
 290                 if (cnt == 1) {
 291                         printf("[1]: 1\n");
 292                         goto conf_childs;
 293                 }
 294                 printf("[1-%d", cnt);
 295                 if (menu_has_help(menu))
 296                         printf("?");
 297                 printf("]: ");
 298                 switch (input_mode) {
 299                 case oldconfig:
 300                         if (!is_new) {
 301                                 cnt = def;
 302                                 printf("%d\n", cnt);
 303                                 break;
 304                         }
 305                         check_stdin();
 306                         /* fall through */
 307                 case oldaskconfig:
 308                         fflush(stdout);
 309                         xfgets(line, 128, stdin);
 310                         strip(line);
 311                         if (line[0] == '?') {
 312                                 print_help(menu);
 313                                 continue;
 314                         }
 315                         if (!line[0])
 316                                 cnt = def;
 317                         else if (isdigit(line[0]))
 318                                 cnt = atoi(line);
 319                         else
 320                                 continue;
 321                         break;
 322                 default:
 323                         break;
 324                 }
 325
 326         conf_childs:
 327                 for (child = menu->list; child; child = child->next) {
 328                         if (!child->sym || !menu_is_visible(child))
 329                                 continue;
 330                         if (!--cnt)
 331                                 break;
 332                 }
 333                 if (!child)
 334                         continue;
 335                 if (line[0] && line[strlen(line) - 1] == '?') {
 336                         print_help(child);
 337                         continue;
 338                 }
 339                 sym_set_choice_value(sym, child->sym);
 340                 for (child = child->list; child; child = child->next) {
 341                         indent += 2;
 342                         conf(child);
 343                         indent -= 2;
 344                 }
 345                 return 1;
 346         }
 347 }
 348
 349 static void conf(struct menu *menu)
 350 {
 351         struct symbol *sym;
 352         struct property *prop;
 353         struct menu *child;
 354
 355         if (!menu_is_visible(menu))
 356                 return;
 357
 358         sym = menu->sym;
 359         prop = menu->prompt;
 360         if (prop) {
 361                 const char *prompt;
 362
 363                 switch (prop->type) {
 364                 case P_MENU:
 365                         if ((input_mode == listnewconfig ||
 366                              input_mode == oldnoconfig) &&
 367                             rootEntry != menu) {
 368                                 check_conf(menu);
 369                                 return;
 370                         }
 371                         /* fall through */
 372                 case P_COMMENT:
 373                         prompt = menu_get_prompt(menu);
 374                         if (prompt)
 375                                 printf("%*c\n%*c %s\n%*c\n",
 376                                         indent, '*',
 377                                         indent, '*', _(prompt),
 378                                         indent, '*');
 379                 default:
 380                         ;
 381                 }
 382         }
 383
 384         if (!sym)
 385                 goto conf_childs;
 386
 387         if (sym_is_choice(sym)) {
 388                 conf_choice(menu);
 389                 if (sym->curr.tri != mod)
 390                         return;
 391                 goto conf_childs;
 392         }
 393
 394         switch (sym->type) {
 395         case S_INT:
 396         case S_HEX:
 397         case S_STRING:
 398                 conf_string(menu);
 399                 break;
 400         default:
 401                 conf_sym(menu);
 402                 break;
 403         }
 404
 405 conf_childs:
 406         if (sym)
 407                 indent += 2;
 408         for (child = menu->list; child; child = child->next)
 409                 conf(child);
 410         if (sym)
 411                 indent -= 2;
 412 }
 413
 414 static void check_conf(struct menu *menu)
 415 {
 416         struct symbol *sym;
 417         struct menu *child;
 418
 419         if (!menu_is_visible(menu))
 420                 return;
 421
 422         sym = menu->sym;
 423         if (sym && !sym_has_value(sym)) {
 424                 if (sym_is_changable(sym) ||
 425                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 426                         if (input_mode == listnewconfig) {
 427                                 if (sym->name && !sym_is_choice_value(sym)) {
 428                                         printf("%s%s\n", CONFIG_, sym->name);
 429                                 }
 430                         } else if (input_mode != oldnoconfig) {
 431                                 if (!conf_cnt++)
 432                                         printf(_("*\n* Restart config...\n*\n"));
 433                                 rootEntry = menu_get_parent_menu(menu);
 434                                 conf(rootEntry);
 435                         }
 436                 }
 437         }
 438
 439         for (child = menu->list; child; child = child->next)
 440                 check_conf(child);
 441 }
 442
 443 static struct option long_opts[] = {
 444         {"askconfig",       no_argument,       NULL, oldaskconfig},
 445         {"config",          no_argument,       NULL, oldconfig},
 446         {"defconfig",       optional_argument, NULL, defconfig},
 447         {"savedefconfig",   required_argument, NULL, savedefconfig},
 448         {"allnoconfig",     no_argument,       NULL, allnoconfig},
 449         {"allyesconfig",    no_argument,       NULL, allyesconfig},
 450         {"allmodconfig",    no_argument,       NULL, allmodconfig},
 451         {"alldefconfig",    no_argument,       NULL, alldefconfig},
 452         {"randconfig",      no_argument,       NULL, randconfig},
 453         {"listnewconfig",   no_argument,       NULL, listnewconfig},
 454         {"noconfig",        no_argument,       NULL, oldnoconfig},
 455         {NULL, 0, NULL, 0}
 456 };
 457
 458 static void conf_usage(const char *progname)
 459 {
 460
 461         printf("Usage: %s [option] <kconfig-file>\n", progname);
 462         printf("[option] is _one_ of the following:\n");
 463         printf("  --listnewconfig         List new options\n");
 464         printf("  --askconfig             Start a new configuration using a line-oriented program\n");
 465         printf("  --config                Update a configuration using a provided .config as base\n");
 466         printf("  --silentconfig          Same as config, but quietly, additionally update deps\n");
 467         printf("  --noconfig              Same as silentconfig but set new symbols to no\n");
 468         printf("  --defconfig <file>      New config with default defined in <file>\n");
 469         printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
 470         printf("  --allnoconfig           New config where all options are answered with no\n");
 471         printf("  --allyesconfig          New config where all options are answered with yes\n");
 472         printf("  --allmodconfig          New config where all options are answered with mod\n");
 473         printf("  --alldefconfig          New config with all symbols set to default\n");
 474         printf("  --randconfig            New config with random answer to all options\n");
 475 }
 476
 477 int main(int ac, char **av)
 478 {
 479         const char *progname = av[0];
 480         int opt;
 481         const char *name, *defconfig_file = NULL /* gcc uninit */;
 482         struct stat tmpstat;
 483
 484         setlocale(LC_ALL, "");
 485         bindtextdomain(PACKAGE, LOCALEDIR);
 486         textdomain(PACKAGE);
 487
 488         tty_stdio = isatty(0) && isatty(1) && isatty(2);
 489
 490         while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
 491                 input_mode = (enum input_mode)opt;
 492                 switch (opt) {
 493                 case defconfig:
 494                 case savedefconfig:
 495                         defconfig_file = optarg;
 496                         break;
 497                 case randconfig:
 498                 {
 499                         struct timeval now;
 500                         unsigned int seed;
 501
 502                         /*
 503                          * Use microseconds derived seed,
 504                          * compensate for systems where it may be zero
 505                          */
 506                         gettimeofday(&now, NULL);
 507
 508                         seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
 509                         srand(seed);
 510                         break;
 511                 }
 512                 case oldaskconfig:
 513                 case oldconfig:
 514                 case allnoconfig:
 515                 case allyesconfig:
 516                 case allmodconfig:
 517                 case alldefconfig:
 518                 case listnewconfig:
 519                 case oldnoconfig:
 520                         break;
 521                 case '?':
 522                         conf_usage(progname);
 523                         exit(1);
 524                         break;
 525                 }
 526         }
 527         if (ac == optind) {
 528                 printf(_("%s: Kconfig file missing\n"), av[0]);
 529                 conf_usage(progname);
 530                 exit(1);
 531         }
 532         name = av[optind];
 533         conf_parse(name);
 534         //zconfdump(stdout);
 535
 536         switch (input_mode) {
 537         case defconfig:
 538                 if (!defconfig_file)
 539                         defconfig_file = conf_get_default_confname();
 540                 if (conf_read(defconfig_file)) {
 541                         printf(_("***\n"
 542                                 "*** Can't find default configuration \"%s\"!\n"
 543                                 "***\n"), defconfig_file);
 544                         exit(1);
 545                 }
 546                 break;
 547         case savedefconfig:
 548         case oldaskconfig:
 549         case oldconfig:
 550         case listnewconfig:
 551         case oldnoconfig:
 552                 conf_read(NULL);
 553                 break;
 554         case allnoconfig:
 555         case allyesconfig:
 556         case allmodconfig:
 557         case alldefconfig:
 558         case randconfig:
 559                 name = getenv("KCONFIG_ALLCONFIG");
 560                 if (!name)
 561                         break;
 562                 if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
 563                         if (conf_read_simple(name, S_DEF_USER)) {
 564                                 fprintf(stderr,
 565                                         _("*** Can't read seed configuration \"%s\"!\n"),
 566                                         name);
 567                                 exit(1);
 568                         }
 569                         break;
 570                 }
 571                 switch (input_mode) {
 572                 case allnoconfig:       name = "allno.config"; break;
 573                 case allyesconfig:      name = "allyes.config"; break;
 574                 case allmodconfig:      name = "allmod.config"; break;
 575                 case alldefconfig:      name = "alldef.config"; break;
 576                 case randconfig:        name = "allrandom.config"; break;
 577                 default: break;
 578                 }
 579                 if (conf_read_simple(name, S_DEF_USER) &&
 580                     conf_read_simple("all.config", S_DEF_USER)) {
 581                         fprintf(stderr,
 582                                 _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
 583                                 name);
 584                         exit(1);
 585                 }
 586                 break;
 587         default:
 588                 break;
 589         }
 590
 591         valid_stdin = tty_stdio;
 592
 593         switch (input_mode) {
 594         case allnoconfig:
 595                 conf_set_all_new_symbols(def_no);
 596                 break;
 597         case allyesconfig:
 598                 conf_set_all_new_symbols(def_yes);
 599                 break;
 600         case allmodconfig:
 601                 conf_set_all_new_symbols(def_mod);
 602                 break;
 603         case alldefconfig:
 604                 conf_set_all_new_symbols(def_default);
 605                 break;
 606         case randconfig:
 607                 conf_set_all_new_symbols(def_random);
 608                 break;
 609         case defconfig:
 610                 conf_set_all_new_symbols(def_default);
 611                 break;
 612         case savedefconfig:
 613                 break;
 614         case oldaskconfig:
 615                 rootEntry = &rootmenu;
 616                 conf(&rootmenu);
 617                 input_mode = oldconfig;
 618                 /* fall through */
 619         case oldconfig:
 620         case listnewconfig:
 621         case oldnoconfig:
 622                 /* Update until a loop caused no more changes */
 623                 do {
 624                         conf_cnt = 0;
 625                         check_conf(&rootmenu);
 626                 } while (conf_cnt &&
 627                          (input_mode != listnewconfig &&
 628                           input_mode != oldnoconfig));
 629                 break;
 630         }
 631
 632         if (input_mode == savedefconfig) {
 633                 if (conf_write_defconfig(defconfig_file)) {
 634                         fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
 635                                 defconfig_file);
 636                         return 1;
 637                 }
 638         } else if (input_mode != listnewconfig) {
 639                 /*
 640                  * build so we shall update autoconf.
 641                  */
 642                 if (conf_write(NULL)) {
 643                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 644                         exit(1);
 645                 }
 646                 if (conf_write_autoconf()) {
 647                         fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
 648                         return 1;
 649                 }
 650         }
 651         return 0;
 652 }
 653
 654 /*
 655  * Helper function to facilitate fgets() by Jean Sacren.
 656  */
 657 void xfgets(char *str, int size, FILE *in)
 658 {
 659         if (fgets(str, size, in) == NULL)
 660                 fprintf(stderr, "\nError in reading or end of file.\n");
 661 }