ae5ab981bb1d170d215bf9bde96845d731c8e7e0
[linux-2.6.git] / scripts / kconfig / 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 <ctype.h>
7 #include <stdlib.h>
8 #include <string.h>
9 #include <unistd.h>
10 #include <time.h>
11 #include <sys/stat.h>
12
13 #define LKC_DIRECT_LINK
14 #include "lkc.h"
15
16 static void conf(struct menu *menu);
17 static void check_conf(struct menu *menu);
18
19 enum {
20         ask_all,
21         ask_new,
22         ask_silent,
23         set_default,
24         set_yes,
25         set_mod,
26         set_no,
27         set_random
28 } input_mode = ask_all;
29 char *defconfig_file;
30
31 static int indent = 1;
32 static int valid_stdin = 1;
33 static int conf_cnt;
34 static char line[128];
35 static struct menu *rootEntry;
36
37 static char nohelp_text[] = N_("Sorry, no help available for this option yet.\n");
38
39 static void strip(char *str)
40 {
41         char *p = str;
42         int l;
43
44         while ((isspace(*p)))
45                 p++;
46         l = strlen(p);
47         if (p != str)
48                 memmove(str, p, l + 1);
49         if (!l)
50                 return;
51         p = str + l - 1;
52         while ((isspace(*p)))
53                 *p-- = 0;
54 }
55
56 static void check_stdin(void)
57 {
58         if (!valid_stdin && input_mode == ask_silent) {
59                 printf(_("aborted!\n\n"));
60                 printf(_("Console input/output is redirected. "));
61                 printf(_("Run 'make oldconfig' to update configuration.\n\n"));
62                 exit(1);
63         }
64 }
65
66 static void conf_askvalue(struct symbol *sym, const char *def)
67 {
68         enum symbol_type type = sym_get_type(sym);
69         tristate val;
70
71         if (!sym_has_value(sym))
72                 printf("(NEW) ");
73
74         line[0] = '\n';
75         line[1] = 0;
76
77         if (!sym_is_changable(sym)) {
78                 printf("%s\n", def);
79                 line[0] = '\n';
80                 line[1] = 0;
81                 return;
82         }
83
84         switch (input_mode) {
85         case set_no:
86         case set_mod:
87         case set_yes:
88         case set_random:
89                 if (sym_has_value(sym)) {
90                         printf("%s\n", def);
91                         return;
92                 }
93                 break;
94         case ask_new:
95         case ask_silent:
96                 if (sym_has_value(sym)) {
97                         printf("%s\n", def);
98                         return;
99                 }
100                 check_stdin();
101         case ask_all:
102                 fflush(stdout);
103                 fgets(line, 128, stdin);
104                 return;
105         case set_default:
106                 printf("%s\n", def);
107                 return;
108         default:
109                 break;
110         }
111
112         switch (type) {
113         case S_INT:
114         case S_HEX:
115         case S_STRING:
116                 printf("%s\n", def);
117                 return;
118         default:
119                 ;
120         }
121         switch (input_mode) {
122         case set_yes:
123                 if (sym_tristate_within_range(sym, yes)) {
124                         line[0] = 'y';
125                         line[1] = '\n';
126                         line[2] = 0;
127                         break;
128                 }
129         case set_mod:
130                 if (type == S_TRISTATE) {
131                         if (sym_tristate_within_range(sym, mod)) {
132                                 line[0] = 'm';
133                                 line[1] = '\n';
134                                 line[2] = 0;
135                                 break;
136                         }
137                 } else {
138                         if (sym_tristate_within_range(sym, yes)) {
139                                 line[0] = 'y';
140                                 line[1] = '\n';
141                                 line[2] = 0;
142                                 break;
143                         }
144                 }
145         case set_no:
146                 if (sym_tristate_within_range(sym, no)) {
147                         line[0] = 'n';
148                         line[1] = '\n';
149                         line[2] = 0;
150                         break;
151                 }
152         case set_random:
153                 do {
154                         val = (tristate)(random() % 3);
155                 } while (!sym_tristate_within_range(sym, val));
156                 switch (val) {
157                 case no: line[0] = 'n'; break;
158                 case mod: line[0] = 'm'; break;
159                 case yes: line[0] = 'y'; break;
160                 }
161                 line[1] = '\n';
162                 line[2] = 0;
163                 break;
164         default:
165                 break;
166         }
167         printf("%s", line);
168 }
169
170 int conf_string(struct menu *menu)
171 {
172         struct symbol *sym = menu->sym;
173         const char *def, *help;
174
175         while (1) {
176                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
177                 printf("(%s) ", sym->name);
178                 def = sym_get_string_value(sym);
179                 if (sym_get_string_value(sym))
180                         printf("[%s] ", def);
181                 conf_askvalue(sym, def);
182                 switch (line[0]) {
183                 case '\n':
184                         break;
185                 case '?':
186                         /* print help */
187                         if (line[1] == '\n') {
188                                 help = nohelp_text;
189                                 if (menu->sym->help)
190                                         help = menu->sym->help;
191                                 printf("\n%s\n", menu->sym->help);
192                                 def = NULL;
193                                 break;
194                         }
195                 default:
196                         line[strlen(line)-1] = 0;
197                         def = line;
198                 }
199                 if (def && sym_set_string_value(sym, def))
200                         return 0;
201         }
202 }
203
204 static int conf_sym(struct menu *menu)
205 {
206         struct symbol *sym = menu->sym;
207         int type;
208         tristate oldval, newval;
209         const char *help;
210
211         while (1) {
212                 printf("%*s%s ", indent - 1, "", menu->prompt->text);
213                 if (sym->name)
214                         printf("(%s) ", sym->name);
215                 type = sym_get_type(sym);
216                 putchar('[');
217                 oldval = sym_get_tristate_value(sym);
218                 switch (oldval) {
219                 case no:
220                         putchar('N');
221                         break;
222                 case mod:
223                         putchar('M');
224                         break;
225                 case yes:
226                         putchar('Y');
227                         break;
228                 }
229                 if (oldval != no && sym_tristate_within_range(sym, no))
230                         printf("/n");
231                 if (oldval != mod && sym_tristate_within_range(sym, mod))
232                         printf("/m");
233                 if (oldval != yes && sym_tristate_within_range(sym, yes))
234                         printf("/y");
235                 if (sym->help)
236                         printf("/?");
237                 printf("] ");
238                 conf_askvalue(sym, sym_get_string_value(sym));
239                 strip(line);
240
241                 switch (line[0]) {
242                 case 'n':
243                 case 'N':
244                         newval = no;
245                         if (!line[1] || !strcmp(&line[1], "o"))
246                                 break;
247                         continue;
248                 case 'm':
249                 case 'M':
250                         newval = mod;
251                         if (!line[1])
252                                 break;
253                         continue;
254                 case 'y':
255                 case 'Y':
256                         newval = yes;
257                         if (!line[1] || !strcmp(&line[1], "es"))
258                                 break;
259                         continue;
260                 case 0:
261                         newval = oldval;
262                         break;
263                 case '?':
264                         goto help;
265                 default:
266                         continue;
267                 }
268                 if (sym_set_tristate_value(sym, newval))
269                         return 0;
270 help:
271                 help = nohelp_text;
272                 if (sym->help)
273                         help = sym->help;
274                 printf("\n%s\n", help);
275         }
276 }
277
278 static int conf_choice(struct menu *menu)
279 {
280         struct symbol *sym, *def_sym;
281         struct menu *child;
282         int type;
283         bool is_new;
284
285         sym = menu->sym;
286         type = sym_get_type(sym);
287         is_new = !sym_has_value(sym);
288         if (sym_is_changable(sym)) {
289                 conf_sym(menu);
290                 sym_calc_value(sym);
291                 switch (sym_get_tristate_value(sym)) {
292                 case no:
293                         return 1;
294                 case mod:
295                         return 0;
296                 case yes:
297                         break;
298                 }
299         } else {
300                 switch (sym_get_tristate_value(sym)) {
301                 case no:
302                         return 1;
303                 case mod:
304                         printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
305                         return 0;
306                 case yes:
307                         break;
308                 }
309         }
310
311         while (1) {
312                 int cnt, def;
313
314                 printf("%*s%s\n", indent - 1, "", menu_get_prompt(menu));
315                 def_sym = sym_get_choice_value(sym);
316                 cnt = def = 0;
317                 line[0] = 0;
318                 for (child = menu->list; child; child = child->next) {
319                         if (!menu_is_visible(child))
320                                 continue;
321                         if (!child->sym) {
322                                 printf("%*c %s\n", indent, '*', menu_get_prompt(child));
323                                 continue;
324                         }
325                         cnt++;
326                         if (child->sym == def_sym) {
327                                 def = cnt;
328                                 printf("%*c", indent, '>');
329                         } else
330                                 printf("%*c", indent, ' ');
331                         printf(" %d. %s", cnt, menu_get_prompt(child));
332                         if (child->sym->name)
333                                 printf(" (%s)", child->sym->name);
334                         if (!sym_has_value(child->sym))
335                                 printf(" (NEW)");
336                         printf("\n");
337                 }
338                 printf("%*schoice", indent - 1, "");
339                 if (cnt == 1) {
340                         printf("[1]: 1\n");
341                         goto conf_childs;
342                 }
343                 printf("[1-%d", cnt);
344                 if (sym->help)
345                         printf("?");
346                 printf("]: ");
347                 switch (input_mode) {
348                 case ask_new:
349                 case ask_silent:
350                         if (!is_new) {
351                                 cnt = def;
352                                 printf("%d\n", cnt);
353                                 break;
354                         }
355                         check_stdin();
356                 case ask_all:
357                         fflush(stdout);
358                         fgets(line, 128, stdin);
359                         strip(line);
360                         if (line[0] == '?') {
361                                 printf("\n%s\n", menu->sym->help ?
362                                         menu->sym->help : nohelp_text);
363                                 continue;
364                         }
365                         if (!line[0])
366                                 cnt = def;
367                         else if (isdigit(line[0]))
368                                 cnt = atoi(line);
369                         else
370                                 continue;
371                         break;
372                 case set_random:
373                         def = (random() % cnt) + 1;
374                 case set_default:
375                 case set_yes:
376                 case set_mod:
377                 case set_no:
378                         cnt = def;
379                         printf("%d\n", cnt);
380                         break;
381                 }
382
383         conf_childs:
384                 for (child = menu->list; child; child = child->next) {
385                         if (!child->sym || !menu_is_visible(child))
386                                 continue;
387                         if (!--cnt)
388                                 break;
389                 }
390                 if (!child)
391                         continue;
392                 if (line[strlen(line) - 1] == '?') {
393                         printf("\n%s\n", child->sym->help ?
394                                 child->sym->help : nohelp_text);
395                         continue;
396                 }
397                 sym_set_choice_value(sym, child->sym);
398                 if (child->list) {
399                         indent += 2;
400                         conf(child->list);
401                         indent -= 2;
402                 }
403                 return 1;
404         }
405 }
406
407 static void conf(struct menu *menu)
408 {
409         struct symbol *sym;
410         struct property *prop;
411         struct menu *child;
412
413         if (!menu_is_visible(menu))
414                 return;
415
416         sym = menu->sym;
417         prop = menu->prompt;
418         if (prop) {
419                 const char *prompt;
420
421                 switch (prop->type) {
422                 case P_MENU:
423                         if (input_mode == ask_silent && rootEntry != menu) {
424                                 check_conf(menu);
425                                 return;
426                         }
427                 case P_COMMENT:
428                         prompt = menu_get_prompt(menu);
429                         if (prompt)
430                                 printf("%*c\n%*c %s\n%*c\n",
431                                         indent, '*',
432                                         indent, '*', prompt,
433                                         indent, '*');
434                 default:
435                         ;
436                 }
437         }
438
439         if (!sym)
440                 goto conf_childs;
441
442         if (sym_is_choice(sym)) {
443                 conf_choice(menu);
444                 if (sym->curr.tri != mod)
445                         return;
446                 goto conf_childs;
447         }
448
449         switch (sym->type) {
450         case S_INT:
451         case S_HEX:
452         case S_STRING:
453                 conf_string(menu);
454                 break;
455         default:
456                 conf_sym(menu);
457                 break;
458         }
459
460 conf_childs:
461         if (sym)
462                 indent += 2;
463         for (child = menu->list; child; child = child->next)
464                 conf(child);
465         if (sym)
466                 indent -= 2;
467 }
468
469 static void check_conf(struct menu *menu)
470 {
471         struct symbol *sym;
472         struct menu *child;
473
474         if (!menu_is_visible(menu))
475                 return;
476
477         sym = menu->sym;
478         if (sym && !sym_has_value(sym)) {
479                 if (sym_is_changable(sym) ||
480                     (sym_is_choice(sym) && sym_get_tristate_value(sym) == yes)) {
481                         if (!conf_cnt++)
482                                 printf(_("*\n* Restart config...\n*\n"));
483                         rootEntry = menu_get_parent_menu(menu);
484                         conf(rootEntry);
485                 }
486         }
487
488         for (child = menu->list; child; child = child->next)
489                 check_conf(child);
490 }
491
492 int main(int ac, char **av)
493 {
494         int i = 1;
495         const char *name;
496         struct stat tmpstat;
497
498         if (ac > i && av[i][0] == '-') {
499                 switch (av[i++][1]) {
500                 case 'o':
501                         input_mode = ask_new;
502                         break;
503                 case 's':
504                         input_mode = ask_silent;
505                         valid_stdin = isatty(0) && isatty(1) && isatty(2);
506                         break;
507                 case 'd':
508                         input_mode = set_default;
509                         break;
510                 case 'D':
511                         input_mode = set_default;
512                         defconfig_file = av[i++];
513                         if (!defconfig_file) {
514                                 printf(_("%s: No default config file specified\n"),
515                                         av[0]);
516                                 exit(1);
517                         }
518                         break;
519                 case 'n':
520                         input_mode = set_no;
521                         break;
522                 case 'm':
523                         input_mode = set_mod;
524                         break;
525                 case 'y':
526                         input_mode = set_yes;
527                         break;
528                 case 'r':
529                         input_mode = set_random;
530                         srandom(time(NULL));
531                         break;
532                 case 'h':
533                 case '?':
534                         printf("%s [-o|-s] config\n", av[0]);
535                         exit(0);
536                 }
537         }
538         name = av[i];
539         if (!name) {
540                 printf(_("%s: Kconfig file missing\n"), av[0]);
541         }
542         conf_parse(name);
543         //zconfdump(stdout);
544         switch (input_mode) {
545         case set_default:
546                 if (!defconfig_file)
547                         defconfig_file = conf_get_default_confname();
548                 if (conf_read(defconfig_file)) {
549                         printf("***\n"
550                                 "*** Can't find default configuration \"%s\"!\n"
551                                 "***\n", defconfig_file);
552                         exit(1);
553                 }
554                 break;
555         case ask_silent:
556                 if (stat(".config", &tmpstat)) {
557                         printf(_("***\n"
558                                 "*** You have not yet configured your kernel!\n"
559                                 "***\n"
560                                 "*** Please run some configurator (e.g. \"make oldconfig\" or\n"
561                                 "*** \"make menuconfig\" or \"make xconfig\").\n"
562                                 "***\n"));
563                         exit(1);
564                 }
565         case ask_all:
566         case ask_new:
567                 conf_read(NULL);
568                 break;
569         case set_no:
570         case set_mod:
571         case set_yes:
572         case set_random:
573                 name = getenv("KCONFIG_ALLCONFIG");
574                 if (name && !stat(name, &tmpstat)) {
575                         conf_read_simple(name);
576                         break;
577                 }
578                 switch (input_mode) {
579                 case set_no:     name = "allno.config"; break;
580                 case set_mod:    name = "allmod.config"; break;
581                 case set_yes:    name = "allyes.config"; break;
582                 case set_random: name = "allrandom.config"; break;
583                 default: break;
584                 }
585                 if (!stat(name, &tmpstat))
586                         conf_read_simple(name);
587                 else if (!stat("all.config", &tmpstat))
588                         conf_read_simple("all.config");
589                 break;
590         default:
591                 break;
592         }
593
594         if (input_mode != ask_silent) {
595                 rootEntry = &rootmenu;
596                 conf(&rootmenu);
597                 if (input_mode == ask_all) {
598                         input_mode = ask_silent;
599                         valid_stdin = 1;
600                 }
601         }
602         do {
603                 conf_cnt = 0;
604                 check_conf(&rootmenu);
605         } while (conf_cnt);
606         if (conf_write(NULL)) {
607                 fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
608                 return 1;
609         }
610         return 0;
611 }