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 #include <errno.h>
  17
  18 #include "lkc.h"
  19
  20 static void conf(struct menu *menu);
  21 static void check_conf(struct menu *menu);
  22 static void xfgets(char *str, int size, FILE *in);
  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 } input_mode = oldaskconfig;
  37
  38 static int indent = 1;
  39 static int tty_stdio;
  40 static int valid_stdin = 1;
  41 static int conf_cnt;
  42 static char line[128];
  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 static void check_stdin(void)
  73 {
  74         if (!valid_stdin) {
  75                 printf(_("aborted!\n\n"));
  76                 printf(_("Console input/output is redirected. "));
  77                 printf(_("Run 'make config' to update configuration.\n\n"));
  78                 exit(1);
  79         }
  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                 check_stdin();
 106                 /* fall through */
 107         case oldaskconfig:
 108                 fflush(stdout);
 109                 xfgets(line, 128, stdin);
 110                 if (!tty_stdio)
 111                         printf("\n");
 112                 return 1;
 113         default:
 114                 break;
 115         }
 116
 117         switch (type) {
 118         case S_INT:
 119         case S_HEX:
 120         case S_STRING:
 121                 printf("%s\n", def);
 122                 return 1;
 123         default:
 124                 ;
 125         }
 126         printf("%s", line);
 127         return 1;
 128 }
 129
 130 static int conf_string(struct menu *menu)
 131 {
 132         struct symbol *sym = menu->sym;
 133         const char *def;
 134
 135         while (1) {
 136                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 137                 printf("(%s) ", sym->name);
 138                 def = sym_get_string_value(sym);
 139                 if (sym_get_string_value(sym))
 140                         printf("[%s] ", def);
 141                 if (!conf_askvalue(sym, def))
 142                         return 0;
 143                 switch (line[0]) {
 144                 case '\n':
 145                         break;
 146                 case '?':
 147                         /* print help */
 148                         if (line[1] == '\n') {
 149                                 print_help(menu);
 150                                 def = NULL;
 151                                 break;
 152                         }
 153                         /* fall through */
 154                 default:
 155                         line[strlen(line)-1] = 0;
 156                         def = line;
 157                 }
 158                 if (def && sym_set_string_value(sym, def))
 159                         return 0;
 160         }
 161 }
 162
 163 static int conf_sym(struct menu *menu)
 164 {
 165         struct symbol *sym = menu->sym;
 166         tristate oldval, newval;
 167
 168         while (1) {
 169                 printf("%*s%s ", indent - 1, "", _(menu->prompt->text));
 170                 if (sym->name)
 171                         printf("(%s) ", sym->name);
 172                 putchar('[');
 173                 oldval = sym_get_tristate_value(sym);
 174                 switch (oldval) {
 175                 case no:
 176                         putchar('N');
 177                         break;
 178                 case mod:
 179                         putchar('M');
 180                         break;
 181                 case yes:
 182                         putchar('Y');
 183                         break;
 184                 }
 185                 if (oldval != no && sym_tristate_within_range(sym, no))
 186                         printf("/n");
 187                 if (oldval != mod && sym_tristate_within_range(sym, mod))
 188                         printf("/m");
 189                 if (oldval != yes && sym_tristate_within_range(sym, yes))
 190                         printf("/y");
 191                 if (menu_has_help(menu))
 192                         printf("/?");
 193                 printf("] ");
 194                 if (!conf_askvalue(sym, sym_get_string_value(sym)))
 195                         return 0;
 196                 strip(line);
 197
 198                 switch (line[0]) {
 199                 case 'n':
 200                 case 'N':
 201                         newval = no;
 202                         if (!line[1] || !strcmp(&line[1], "o"))
 203                                 break;
 204                         continue;
 205                 case 'm':
 206                 case 'M':
 207                         newval = mod;
 208                         if (!line[1])
 209                                 break;
 210                         continue;
 211                 case 'y':
 212                 case 'Y':
 213                         newval = yes;
 214                         if (!line[1] || !strcmp(&line[1], "es"))
 215                                 break;
 216                         continue;
 217                 case 0:
 218                         newval = oldval;
 219                         break;
 220                 case '?':
 221                         goto help;
 222                 default:
 223                         continue;
 224                 }
 225                 if (sym_set_tristate_value(sym, newval))
 226                         return 0;
 227 help:
 228                 print_help(menu);
 229         }
 230 }
 231
 232 static int conf_choice(struct menu *menu)
 233 {
 234         struct symbol *sym, *def_sym;
 235         struct menu *child;
 236         bool is_new;
 237
 238         sym = menu->sym;
 239         is_new = !sym_has_value(sym);
 240         if (sym_is_changable(sym)) {
 241                 conf_sym(menu);
 242                 sym_calc_value(sym);
 243                 switch (sym_get_tristate_value(sym)) {
 244                 case no:
 245                         return 1;
 246                 case mod:
 247                         return 0;
 248                 case yes:
 249                         break;
 250                 }
 251         } else {
 252                 switch (sym_get_tristate_value(sym)) {
 253                 case no:
 254                         return 1;
 255                 case mod:
 256                         printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 257                         return 0;
 258                 case yes:
 259                         break;
 260                 }
 261         }
 262
 263         while (1) {
 264                 int cnt, def;
 265
 266                 printf("%*s%s\n", indent - 1, "", _(menu_get_prompt(menu)));
 267                 def_sym = sym_get_choice_value(sym);
 268                 cnt = def = 0;
 269                 line[0] = 0;
 270                 for (child = menu->list; child; child = child->next) {
 271                         if (!menu_is_visible(child))
 272                                 continue;
 273                         if (!child->sym) {
 274                                 printf("%*c %s\n", indent, '*', _(menu_get_prompt(child)));
 275                                 continue;
 276                         }
 277                         cnt++;
 278                         if (child->sym == def_sym) {
 279                                 def = cnt;
 280                                 printf("%*c", indent, '>');
 281                         } else
 282                                 printf("%*c", indent, ' ');
 283                         printf(" %d. %s", cnt, _(menu_get_prompt(child)));
 284                         if (child->sym->name)
 285                                 printf(" (%s)", child->sym->name);
 286                         if (!sym_has_value(child->sym))
 287                                 printf(_(" (NEW)"));
 288                         printf("\n");
 289                 }
 290                 printf(_("%*schoice"), indent - 1, "");
 291                 if (cnt == 1) {
 292                         printf("[1]: 1\n");
 293                         goto conf_childs;
 294                 }
 295                 printf("[1-%d", cnt);
 296                 if (menu_has_help(menu))
 297                         printf("?");
 298                 printf("]: ");
 299                 switch (input_mode) {
 300                 case oldconfig:
 301                         if (!is_new) {
 302                                 cnt = def;
 303                                 printf("%d\n", cnt);
 304                                 break;
 305                         }
 306                         check_stdin();
 307                         /* fall through */
 308                 case oldaskconfig:
 309                         fflush(stdout);
 310                         xfgets(line, 128, stdin);
 311                         strip(line);
 312                         if (line[0] == '?') {
 313                                 print_help(menu);
 314                                 continue;
 315                         }
 316                         if (!line[0])
 317                                 cnt = def;
 318                         else if (isdigit(line[0]))
 319                                 cnt = atoi(line);
 320                         else
 321                                 continue;
 322                         break;
 323                 default:
 324                         break;
 325                 }
 326
 327         conf_childs:
 328                 for (child = menu->list; child; child = child->next) {
 329                         if (!child->sym || !menu_is_visible(child))
 330                                 continue;
 331                         if (!--cnt)
 332                                 break;
 333                 }
 334                 if (!child)
 335                         continue;
 336                 if (line[0] && line[strlen(line) - 1] == '?') {
 337                         print_help(child);
 338                         continue;
 339                 }
 340                 sym_set_choice_value(sym, child->sym);
 341                 for (child = child->list; child; child = child->next) {
 342                         indent += 2;
 343                         conf(child);
 344                         indent -= 2;
 345                 }
 346                 return 1;
 347         }
 348 }
 349
 350 static void conf(struct menu *menu)
 351 {
 352         struct symbol *sym;
 353         struct property *prop;
 354         struct menu *child;
 355
 356         if (!menu_is_visible(menu))
 357                 return;
 358
 359         sym = menu->sym;
 360         prop = menu->prompt;
 361         if (prop) {
 362                 const char *prompt;
 363
 364                 switch (prop->type) {
 365                 case P_MENU:
 366                         if ((input_mode == listnewconfig ||
 367                              input_mode == oldnoconfig) &&
 368                             rootEntry != menu) {
 369                                 check_conf(menu);
 370                                 return;
 371                         }
 372                         /* fall through */
 373                 case P_COMMENT:
 374                         prompt = menu_get_prompt(menu);
 375                         if (prompt)
 376                                 printf("%*c\n%*c %s\n%*c\n",
 377                                         indent, '*',
 378                                         indent, '*', _(prompt),
 379                                         indent, '*');
 380                 default:
 381                         ;
 382                 }
 383         }
 384
 385         if (!sym)
 386                 goto conf_childs;
 387
 388         if (sym_is_choice(sym)) {
 389                 conf_choice(menu);
 390                 if (sym->curr.tri != mod)
 391                         return;
 392                 goto conf_childs;
 393         }
 394
 395         switch (sym->type) {
 396         case S_INT:
 397         case S_HEX:
 398         case S_STRING:
 399                 conf_string(menu);
 400                 break;
 401         default:
 402                 conf_sym(menu);
 403                 break;
 404         }
 405
 406 conf_childs:
 407         if (sym)
 408                 indent += 2;
 409         for (child = menu->list; child; child = child->next)
 410                 conf(child);
 411         if (sym)
 412                 indent -= 2;
 413 }
 414
 415 static void check_conf(struct menu *menu)
 416 {
 417         struct symbol *sym;
 418         struct menu *child;
 419
 420         if (!menu_is_visible(menu))
 421                 return;
 422
 423         sym = menu->sym;
 424         if (sym && !sym_has_value(sym)) {
 425                 if (sym_is_changable(sym) ||
 426                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
 427                         if (input_mode == listnewconfig) {
 428                                 if (sym->name && !sym_is_choice_value(sym)) {
 429                                         printf("%s%s\n", CONFIG_, sym->name);
 430                                 }
 431                         } else if (input_mode != oldnoconfig) {
 432                                 if (!conf_cnt++)
 433                                         printf(_("*\n* Restart config...\n*\n"));
 434                                 rootEntry = menu_get_parent_menu(menu);
 435                                 conf(rootEntry);
 436                         }
 437                 }
 438         }
 439
 440         for (child = menu->list; child; child = child->next)
 441                 check_conf(child);
 442 }
 443
 444 static struct option long_opts[] = {
 445         {"askconfig",       no_argument,       NULL, oldaskconfig},
 446         {"config",          no_argument,       NULL, oldconfig},
 447         {"defconfig",       optional_argument, NULL, defconfig},
 448         {"savedefconfig",   required_argument, NULL, savedefconfig},
 449         {"allnoconfig",     no_argument,       NULL, allnoconfig},
 450         {"allyesconfig",    no_argument,       NULL, allyesconfig},
 451         {"allmodconfig",    no_argument,       NULL, allmodconfig},
 452         {"alldefconfig",    no_argument,       NULL, alldefconfig},
 453         {"randconfig",      no_argument,       NULL, randconfig},
 454         {"listnewconfig",   no_argument,       NULL, listnewconfig},
 455         {"noconfig",        no_argument,       NULL, oldnoconfig},
 456         {NULL, 0, NULL, 0}
 457 };
 458
 459 static void conf_usage(const char *progname)
 460 {
 461
 462         printf("Usage: %s [option] <kconfig-file>\n", progname);
 463         printf("[option] is _one_ of the following:\n");
 464         printf("  --listnewconfig         List new options\n");
 465         printf("  --askconfig             Start a new configuration using a line-oriented program\n");
 466         printf("  --config                Update a configuration using a provided .config as base\n");
 467         printf("  --silentconfig          Same as config, but quietly, additionally update deps\n");
 468         printf("  --noconfig              Same as silentconfig but set new symbols to no\n");
 469         printf("  --defconfig <file>      New config with default defined in <file>\n");
 470         printf("  --savedefconfig <file>  Save the minimal current configuration to <file>\n");
 471         printf("  --allnoconfig           New config where all options are answered with no\n");
 472         printf("  --allyesconfig          New config where all options are answered with yes\n");
 473         printf("  --allmodconfig          New config where all options are answered with mod\n");
 474         printf("  --alldefconfig          New config with all symbols set to default\n");
 475         printf("  --randconfig            New config with random answer to all options\n");
 476 }
 477
 478 int main(int ac, char **av)
 479 {
 480         const char *progname = av[0];
 481         int opt;
 482         const char *name, *defconfig_file = NULL /* gcc uninit */;
 483         struct stat tmpstat;
 484
 485         setlocale(LC_ALL, "");
 486         bindtextdomain(PACKAGE, LOCALEDIR);
 487         textdomain(PACKAGE);
 488
 489         tty_stdio = isatty(0) && isatty(1) && isatty(2);
 490
 491         while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
 492                 input_mode = (enum input_mode)opt;
 493                 switch (opt) {
 494                 case defconfig:
 495                 case savedefconfig:
 496                         defconfig_file = optarg;
 497                         break;
 498                 case randconfig:
 499                 {
 500                         struct timeval now;
 501                         unsigned int seed;
 502                         char *seed_env;
 503
 504                         /*
 505                          * Use microseconds derived seed,
 506                          * compensate for systems where it may be zero
 507                          */
 508                         gettimeofday(&now, NULL);
 509                         seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
 510
 511                         seed_env = getenv("KCONFIG_SEED");
 512                         if( seed_env && *seed_env ) {
 513                                 char *endp;
 514                                 int tmp = (int)strtol(seed_env, &endp, 0);
 515                                 if (*endp == '\0') {
 516                                         seed = tmp;
 517                                 }
 518                         }
 519                         srand(seed);
 520                         break;
 521                 }
 522                 case oldaskconfig:
 523                 case oldconfig:
 524                 case allnoconfig:
 525                 case allyesconfig:
 526                 case allmodconfig:
 527                 case alldefconfig:
 528                 case listnewconfig:
 529                 case oldnoconfig:
 530                         break;
 531                 case '?':
 532                         conf_usage(progname);
 533                         exit(1);
 534                         break;
 535                 }
 536         }
 537         if (ac == optind) {
 538                 printf(_("%s: Kconfig file missing\n"), av[0]);
 539                 conf_usage(progname);
 540                 exit(1);
 541         }
 542         name = av[optind];
 543         conf_parse(name);
 544         //zconfdump(stdout);
 545
 546         switch (input_mode) {
 547         case defconfig:
 548                 if (!defconfig_file)
 549                         defconfig_file = conf_get_default_confname();
 550                 if (conf_read(defconfig_file)) {
 551                         printf(_("***\n"
 552                                 "*** Can't find default configuration \"%s\"!\n"
 553                                 "***\n"), 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         valid_stdin = tty_stdio;
 602
 603         switch (input_mode) {
 604         case allnoconfig:
 605                 conf_set_all_new_symbols(def_no);
 606                 break;
 607         case allyesconfig:
 608                 conf_set_all_new_symbols(def_yes);
 609                 break;
 610         case allmodconfig:
 611                 conf_set_all_new_symbols(def_mod);
 612                 break;
 613         case alldefconfig:
 614                 conf_set_all_new_symbols(def_default);
 615                 break;
 616         case randconfig:
 617                 conf_set_all_new_symbols(def_random);
 618                 break;
 619         case defconfig:
 620                 conf_set_all_new_symbols(def_default);
 621                 break;
 622         case savedefconfig:
 623                 break;
 624         case oldaskconfig:
 625                 rootEntry = &rootmenu;
 626                 conf(&rootmenu);
 627                 input_mode = oldconfig;
 628                 /* fall through */
 629         case oldconfig:
 630         case listnewconfig:
 631         case oldnoconfig:
 632                 /* Update until a loop caused no more changes */
 633                 do {
 634                         conf_cnt = 0;
 635                         check_conf(&rootmenu);
 636                 } while (conf_cnt &&
 637                          (input_mode != listnewconfig &&
 638                           input_mode != oldnoconfig));
 639                 break;
 640         }
 641
 642         if (input_mode == savedefconfig) {
 643                 if (conf_write_defconfig(defconfig_file)) {
 644                         fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
 645                                 defconfig_file);
 646                         return 1;
 647                 }
 648         } else if (input_mode != listnewconfig) {
 649                 /*
 650                  * build so we shall update autoconf.
 651                  */
 652                 if (conf_write(NULL)) {
 653                         fprintf(stderr, _("\n*** Error during writing of the configuration.\n\n"));
 654                         exit(1);
 655                 }
 656                 if (conf_write_autoconf()) {
 657                         fprintf(stderr, _("\n*** Error during update of the configuration.\n\n"));
 658                         return 1;
 659                 }
 660         }
 661         return 0;
 662 }
 663
 664 /*
 665  * Helper function to facilitate fgets() by Jean Sacren.
 666  */
 667 void xfgets(char *str, int size, FILE *in)
 668 {
 669         if (fgets(str, size, in) == NULL)
 670                 fprintf(stderr, "\nError in reading or end of file.\n");
 671 }