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