git.ozlabs.org Git - ccan/blob - tools/ccanlint/ccanlint.c

   1 /*
   2  * ccanlint: assorted checks and advice for a ccan package
   3  * Copyright (C) 2008 Rusty Russell, Idris Soule
   4  * Copyright (C) 2010 Rusty Russell, Idris Soule
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the Free
   8  * Software Foundation; either version 2 of the License, or (at your option)
   9  * any later version.
  10  *
  11  *   This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program; if not, write to the Free Software Foundation, Inc., 51
  18  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20 #include "ccanlint.h"
  21 #include "../tools.h"
  22 #include <unistd.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <err.h>
  27 #include <ctype.h>
  28 #include <ccan/str/str.h>
  29 #include <ccan/str_talloc/str_talloc.h>
  30 #include <ccan/talloc/talloc.h>
  31 #include <ccan/opt/opt.h>
  32 #include <ccan/foreach/foreach.h>
  33 #include <ccan/grab_file/grab_file.h>
  34 #include <ccan/cast/cast.h>
  35 #include <ccan/tlist/tlist.h>
  36 #include <ccan/strmap/strmap.h>
  37
  38 struct ccanlint_map {
  39         STRMAP_MEMBERS(struct ccanlint *);
  40 };
  41
  42 int verbose = 0;
  43 static struct ccanlint_map tests;
  44 bool safe_mode = false;
  45 bool keep_results = false;
  46 static bool targeting = false;
  47 static unsigned int timeout;
  48
  49 /* These are overridden at runtime if we can find config.h */
  50 const char *compiler = NULL;
  51 const char *cflags = NULL;
  52
  53 const char *config_header;
  54
  55 #if 0
  56 static void indent_print(const char *string)
  57 {
  58         while (*string) {
  59                 unsigned int line = strcspn(string, "\n");
  60                 printf("\t%.*s", line, string);
  61                 if (string[line] == '\n') {
  62                         printf("\n");
  63                         line++;
  64                 }
  65                 string += line;
  66         }
  67 }
  68 #endif
  69
  70 bool ask(const char *question)
  71 {
  72         char reply[80];
  73
  74         printf("%s ", question);
  75         fflush(stdout);
  76
  77         return fgets(reply, sizeof(reply), stdin) != NULL
  78                 && toupper(reply[0]) == 'Y';
  79 }
  80
  81 /* Skip, but don't remove. */
  82 static bool skip_test(struct dgraph_node *node, const char *why)
  83 {
  84         struct ccanlint *c = container_of(node, struct ccanlint, node);
  85         c->skip = why;
  86         return true;
  87 }
  88
  89 static const char *dep_failed(struct manifest *m)
  90 {
  91         return "dependency couldn't run";
  92 }
  93
  94 static bool cannot_run(struct dgraph_node *node, void *unused)
  95 {
  96         struct ccanlint *c = container_of(node, struct ccanlint, node);
  97         c->can_run = dep_failed;
  98         return true;
  99 }
 100
 101 struct run_info {
 102         bool quiet;
 103         unsigned int score, total;
 104         struct manifest *m;
 105         const char *prefix;
 106         bool pass;
 107 };
 108
 109 static bool run_test(struct dgraph_node *n, struct run_info *run)
 110 {
 111         struct ccanlint *i = container_of(n, struct ccanlint, node);
 112         unsigned int timeleft;
 113         struct score *score;
 114
 115         if (i->done)
 116                 return true;
 117
 118         score = talloc(run->m, struct score);
 119         list_head_init(&score->per_file_errors);
 120         score->error = NULL;
 121         score->pass = false;
 122         score->score = 0;
 123         score->total = 1;
 124
 125         /* We can see skipped things in two cases:
 126          * (1) _info excluded them (presumably because they fail).
 127          * (2) A prerequisite failed.
 128          */
 129         if (i->skip) {
 130                 if (verbose)
 131                         printf("%s%s: skipped (%s)\n",
 132                                run->prefix, i->name, i->skip);
 133                 /* Pass us up to the test which failed, not us. */
 134                 score->pass = true;
 135                 goto out;
 136         }
 137
 138         if (i->can_run) {
 139                 i->skip = i->can_run(run->m);
 140                 if (i->skip) {
 141                         /* Test doesn't apply, or can't run?  That's OK. */
 142                         if (verbose > 1)
 143                                 printf("%s%s: skipped (%s)\n",
 144                                        run->prefix, i->name, i->skip);
 145                         /* Mark our dependencies to skip. */
 146                         dgraph_traverse_from(&i->node, cannot_run, NULL);
 147                         score->pass = true;
 148                         score->total = 0;
 149                         goto out;
 150                 }
 151         }
 152
 153         timeleft = timeout ? timeout : default_timeout_ms;
 154         i->check(run->m, &timeleft, score);
 155         if (timeout && timeleft == 0) {
 156                 i->skip = "timeout";
 157                 if (verbose)
 158                         printf("%s%s: skipped (%s)\n",
 159                                run->prefix, i->name, i->skip);
 160                 /* Mark our dependencies to skip. */
 161                 dgraph_traverse_from(&i->node, skip_test,
 162                                      "dependency timed out");
 163                 score->pass = true;
 164                 score->total = 0;
 165                 goto out;
 166         }
 167
 168         assert(score->score <= score->total);
 169         if ((!score->pass && !run->quiet)
 170             || (score->score < score->total && verbose)
 171             || verbose > 1) {
 172                 printf("%s%s (%s): %s",
 173                        run->prefix, i->name, i->key,
 174                        score->pass ? "PASS" : "FAIL");
 175                 if (score->total > 1)
 176                         printf(" (+%u/%u)", score->score, score->total);
 177                 printf("\n");
 178         }
 179
 180         if ((!run->quiet && !score->pass) || verbose) {
 181                 if (score->error) {
 182                         printf("%s%s", score->error,
 183                                strends(score->error, "\n") ? "" : "\n");
 184                 }
 185         }
 186         if (!run->quiet && score->score < score->total && i->handle)
 187                 i->handle(run->m, score);
 188
 189         if (!score->pass) {
 190                 /* Skip any tests which depend on this one. */
 191                 dgraph_traverse_from(&i->node, skip_test, "dependency failed");
 192         }
 193
 194 out:
 195         run->score += score->score;
 196         run->total += score->total;
 197
 198         /* FIXME: Free score. */
 199         run->pass &= score->pass;
 200         i->done = true;
 201
 202         if (!score->pass && i->compulsory) {
 203                 warnx("%s%s failed", run->prefix, i->name);
 204                 run->score = 0;
 205                 return false;
 206         }
 207         return true;
 208 }
 209
 210 static void register_test(struct ccanlint *test)
 211 {
 212         if (!strmap_add(&tests, test->key, test))
 213                 err(1, "Adding test %s", test->key);
 214         test->options = talloc_array(NULL, char *, 1);
 215         test->options[0] = NULL;
 216         dgraph_init_node(&test->node);
 217 }
 218
 219 static bool get_test(const char *member, struct ccanlint *i,
 220                      struct ccanlint **ret)
 221 {
 222         if (tlist_empty(&i->node.edge[DGRAPH_TO])) {
 223                 *ret = i;
 224                 return false;
 225         }
 226         return true;
 227 }
 228
 229 /**
 230  * get_next_test - retrieves the next test to be processed
 231  **/
 232 static inline struct ccanlint *get_next_test(void)
 233 {
 234         struct ccanlint *i = NULL;
 235
 236         strmap_iterate(&tests, get_test, &i);
 237         if (i)
 238                 return i;
 239
 240         if (strmap_empty(&tests))
 241                 return NULL;
 242
 243         errx(1, "Can't make process; test dependency cycle");
 244 }
 245
 246 static struct ccanlint *find_test(const char *key)
 247 {
 248         return strmap_get(&tests, key);
 249 }
 250
 251 bool is_excluded(const char *name)
 252 {
 253         return find_test(name)->skip != NULL;
 254 }
 255
 256 static bool init_deps(const char *member, struct ccanlint *c, void *unused)
 257 {
 258         char **deps = strsplit(NULL, c->needs, " ");
 259         unsigned int i;
 260
 261         for (i = 0; deps[i]; i++) {
 262                 struct ccanlint *dep;
 263
 264                 dep = find_test(deps[i]);
 265                 if (!dep)
 266                         errx(1, "BUG: unknown dep '%s' for %s",
 267                              deps[i], c->key);
 268                 dgraph_add_edge(&dep->node, &c->node);
 269         }
 270         talloc_free(deps);
 271         return true;
 272 }
 273
 274 static bool check_names(const char *member, struct ccanlint *c,
 275                         struct ccanlint_map *names)
 276 {
 277         if (!strmap_add(names, c->name, c))
 278                 err(1, "Duplicate name %s", c->name);
 279         return true;
 280 }
 281
 282 #undef REGISTER_TEST
 283 #define REGISTER_TEST(name, ...) extern struct ccanlint name
 284 #include "generated-testlist"
 285
 286 static void init_tests(void)
 287 {
 288         struct ccanlint_map names;
 289
 290         strmap_init(&tests);
 291
 292 #undef REGISTER_TEST
 293 #define REGISTER_TEST(name) register_test(&name)
 294 #include "generated-testlist"
 295
 296         strmap_iterate(&tests, init_deps, NULL);
 297
 298         /* Check for duplicate names. */
 299         strmap_init(&names);
 300         strmap_iterate(&tests, check_names, &names);
 301         strmap_clear(&names);
 302 }
 303
 304 static bool reset_test(struct dgraph_node *node, void *unused)
 305 {
 306         struct ccanlint *c = container_of(node, struct ccanlint, node);
 307         c->skip = NULL;
 308         c->done = false;
 309         return true;
 310 }
 311
 312 static void reset_tests(struct dgraph_node *all)
 313 {
 314         dgraph_traverse_to(all, reset_test, NULL);
 315 }
 316
 317 static bool print_deps(const char *member, struct ccanlint *c, void *unused)
 318 {
 319         if (!tlist_empty(&c->node.edge[DGRAPH_FROM])) {
 320                 struct dgraph_edge *e;
 321
 322                 printf("These depend on %s:\n", c->key);
 323                 dgraph_for_each_edge(&c->node, e, DGRAPH_FROM) {
 324                         struct ccanlint *to = container_of(e->n[DGRAPH_TO],
 325                                                            struct ccanlint,
 326                                                            node);
 327                         printf("\t%s\n", to->key);
 328                 }
 329         }
 330         return true;
 331 }
 332
 333 static void print_test_depends(void)
 334 {
 335         printf("Tests:\n");
 336
 337         strmap_iterate(&tests, print_deps, NULL);
 338 }
 339
 340
 341 static int show_tmpdir(const char *dir)
 342 {
 343         printf("You can find ccanlint working files in '%s'\n", dir);
 344         return 0;
 345 }
 346
 347 static char *keep_tests(void *unused)
 348 {
 349         keep_results = true;
 350
 351         /* Don't automatically destroy temporary dir. */
 352         talloc_set_destructor(temp_dir(NULL), show_tmpdir);
 353         return NULL;
 354 }
 355
 356 static bool remove_test(struct dgraph_node *node, const char *why)
 357 {
 358         struct ccanlint *c = container_of(node, struct ccanlint, node);
 359         c->skip = why;
 360         dgraph_clear_node(node);
 361         return true;
 362 }
 363
 364 static char *exclude_test(const char *testname, void *unused)
 365 {
 366         struct ccanlint *i = find_test(testname);
 367         if (!i)
 368                 return talloc_asprintf(NULL, "No test %s to --exclude",
 369                                        testname);
 370
 371         /* Remove this, and everything which depends on it. */
 372         dgraph_traverse_from(&i->node, remove_test, "excluded on command line");
 373         remove_test(&i->node, "excluded on command line");
 374         return NULL;
 375 }
 376
 377 static void skip_test_and_deps(struct ccanlint *c, const char *why)
 378 {
 379         /* Skip this, and everything which depends on us. */
 380         dgraph_traverse_from(&c->node, skip_test, why);
 381         skip_test(&c->node, why);
 382 }
 383
 384 static char *list_tests(void *arg)
 385 {
 386         struct ccanlint *i;
 387
 388         printf("Tests:\n");
 389         /* This makes them print in topological order. */
 390         while ((i = get_next_test()) != NULL) {
 391                 printf("   %-25s %s\n", i->key, i->name);
 392                 dgraph_clear_node(&i->node);
 393                 strmap_del(&tests, i->key, NULL);
 394         }
 395         exit(0);
 396 }
 397
 398 static bool draw_test(const char *member, struct ccanlint *c, const char *style)
 399 {
 400         /*
 401          * todo: escape labels in case ccanlint test keys have
 402          *       characters interpreted as GraphViz syntax.
 403          */
 404         printf("\t\"%p\" [label=\"%s\"%s]\n", c, c->key, style);
 405         return true;
 406 }
 407
 408 static void test_dgraph_vertices(const char *style)
 409 {
 410         strmap_iterate(&tests, draw_test, style);
 411 }
 412
 413 static bool draw_edges(const char *member, struct ccanlint *c, void *unused)
 414 {
 415         struct dgraph_edge *e;
 416
 417         dgraph_for_each_edge(&c->node, e, DGRAPH_FROM) {
 418                 struct ccanlint *to = container_of(e->n[DGRAPH_TO],
 419                                                    struct ccanlint,
 420                                                    node);
 421                 printf("\t\"%p\" -> \"%p\"\n", c->name, to->name);
 422         }
 423         return true;
 424 }
 425
 426 static void test_dgraph_edges(void)
 427 {
 428         strmap_iterate(&tests, draw_edges, NULL);
 429 }
 430
 431 static char *test_dependency_graph(void *arg)
 432 {
 433         puts("digraph G {");
 434
 435         test_dgraph_vertices("");
 436         test_dgraph_edges();
 437
 438         puts("}");
 439
 440         exit(0);
 441 }
 442
 443 /* Remove empty lines. */
 444 static char **collapse(char **lines, unsigned int *nump)
 445 {
 446         unsigned int i, j;
 447         for (i = j = 0; lines[i]; i++) {
 448                 if (lines[i][0])
 449                         lines[j++] = lines[i];
 450         }
 451         lines[j] = NULL;
 452         if (nump)
 453                 *nump = j;
 454         return lines;
 455 }
 456
 457
 458 static void add_options(struct ccanlint *test, char **options,
 459                         unsigned int num_options)
 460 {
 461         unsigned int num;
 462
 463         if (!test->options)
 464                 num = 0;
 465         else
 466                 /* -1, because last one is NULL. */
 467                 num = talloc_array_length(test->options) - 1;
 468
 469         test->options = talloc_realloc(NULL, test->options,
 470                                        char *,
 471                                        num + num_options + 1);
 472         memcpy(&test->options[num], options, (num_options + 1)*sizeof(char *));
 473 }
 474
 475 void add_info_options(struct ccan_file *info)
 476 {
 477         struct doc_section *d;
 478         unsigned int i;
 479         struct ccanlint *test;
 480
 481         list_for_each(get_ccan_file_docs(info), d, list) {
 482                 if (!streq(d->type, "ccanlint"))
 483                         continue;
 484
 485                 for (i = 0; i < d->num_lines; i++) {
 486                         unsigned int num_words;
 487                         char **words = collapse(strsplit(d, d->lines[i], " \t"),
 488                                                 &num_words);
 489                         if (num_words == 0)
 490                                 continue;
 491
 492                         if (strncmp(words[0], "//", 2) == 0)
 493                                 continue;
 494
 495                         test = find_test(words[0]);
 496                         if (!test) {
 497                                 warnx("%s: unknown ccanlint test '%s'",
 498                                       info->fullname, words[0]);
 499                                 continue;
 500                         }
 501
 502                         if (!words[1]) {
 503                                 warnx("%s: no argument to test '%s'",
 504                                       info->fullname, words[0]);
 505                                 continue;
 506                         }
 507
 508                         /* Known failure? */
 509                         if (strcasecmp(words[1], "FAIL") == 0) {
 510                                 if (!targeting)
 511                                         skip_test_and_deps(test,
 512                                                            "excluded in _info"
 513                                                            " file");
 514                         } else {
 515                                 if (!test->takes_options)
 516                                         warnx("%s: %s doesn't take options",
 517                                               info->fullname, words[0]);
 518                                 add_options(test, words+1, num_words-1);
 519                         }
 520                 }
 521         }
 522 }
 523
 524 /* If options are of form "filename:<option>" they only apply to that file */
 525 char **per_file_options(const struct ccanlint *test, struct ccan_file *f)
 526 {
 527         char **ret;
 528         unsigned int i, j = 0;
 529
 530         /* Fast path. */
 531         if (!test->options[0])
 532                 return test->options;
 533
 534         ret = talloc_array(f, char *, talloc_array_length(test->options));
 535         for (i = 0; test->options[i]; i++) {
 536                 char *optname;
 537
 538                 if (!test->options[i] || !strchr(test->options[i], ':')) {
 539                         optname = test->options[i];
 540                 } else if (strstarts(test->options[i], f->name)
 541                            && test->options[i][strlen(f->name)] == ':') {
 542                         optname = test->options[i] + strlen(f->name) + 1;
 543                 } else
 544                         continue;
 545
 546                 /* FAIL overrides anything else. */
 547                 if (streq(optname, "FAIL")) {
 548                         ret = talloc_array(f, char *, 2);
 549                         ret[0] = (char *)"FAIL";
 550                         ret[1] = NULL;
 551                         return ret;
 552                 }
 553                 ret[j++] = optname;
 554         }
 555         ret[j] = NULL;
 556
 557         /* Shrink it to size so talloc_array_length() works as expected. */
 558         return talloc_realloc(NULL, ret, char *, j + 1);
 559 }
 560
 561 static char *demangle_string(char *string)
 562 {
 563         unsigned int i;
 564         const char mapfrom[] = "abfnrtv";
 565         const char mapto[] = "\a\b\f\n\r\t\v";
 566
 567         if (!strchr(string, '"'))
 568                 return NULL;
 569         string = strchr(string, '"') + 1;
 570         if (!strrchr(string, '"'))
 571                 return NULL;
 572         *strrchr(string, '"') = '\0';
 573
 574         for (i = 0; i < strlen(string); i++) {
 575                 if (string[i] == '\\') {
 576                         char repl;
 577                         unsigned len = 0;
 578                         const char *p = strchr(mapfrom, string[i+1]);
 579                         if (p) {
 580                                 repl = mapto[p - mapfrom];
 581                                 len = 1;
 582                         } else if (strlen(string+i+1) >= 3) {
 583                                 if (string[i+1] == 'x') {
 584                                         repl = (string[i+2]-'0')*16
 585                                                 + string[i+3]-'0';
 586                                         len = 3;
 587                                 } else if (cisdigit(string[i+1])) {
 588                                         repl = (string[i+2]-'0')*8*8
 589                                                 + (string[i+3]-'0')*8
 590                                                 + (string[i+4]-'0');
 591                                         len = 3;
 592                                 }
 593                         }
 594                         if (len == 0) {
 595                                 repl = string[i+1];
 596                                 len = 1;
 597                         }
 598
 599                         string[i] = repl;
 600                         memmove(string + i + 1, string + i + len + 1,
 601                                 strlen(string + i + len + 1) + 1);
 602                 }
 603         }
 604
 605         return string;
 606 }
 607
 608
 609 static void read_config_header(void)
 610 {
 611         char *fname = talloc_asprintf(NULL, "%s/config.h", ccan_dir);
 612         char **lines;
 613         unsigned int i;
 614
 615         config_header = grab_file(NULL, fname, NULL);
 616         if (!config_header) {
 617                 talloc_free(fname);
 618                 return;
 619         }
 620
 621         lines = strsplit(config_header, config_header, "\n");
 622         for (i = 0; i < talloc_array_length(lines) - 1; i++) {
 623                 char *sym;
 624                 const char **line = (const char **)&lines[i];
 625
 626                 if (!get_token(line, "#"))
 627                         continue;
 628                 if (!get_token(line, "define"))
 629                         continue;
 630                 sym = get_symbol_token(lines, line);
 631                 if (streq(sym, "CCAN_COMPILER") && !compiler) {
 632                         compiler = demangle_string(lines[i]);
 633                         if (!compiler)
 634                                 errx(1, "%s:%u:could not parse CCAN_COMPILER",
 635                                      fname, i+1);
 636                         if (verbose > 1)
 637                                 printf("%s: compiler set to '%s'\n",
 638                                        fname, compiler);
 639                 } else if (streq(sym, "CCAN_CFLAGS") && !cflags) {
 640                         cflags = demangle_string(lines[i]);
 641                         if (!cflags)
 642                                 errx(1, "%s:%u:could not parse CCAN_CFLAGS",
 643                                      fname, i+1);
 644                         if (verbose > 1)
 645                                 printf("%s: compiler flags set to '%s'\n",
 646                                        fname, cflags);
 647                 }
 648         }
 649         if (!compiler)
 650                 compiler = CCAN_COMPILER;
 651         if (!cflags)
 652                 compiler = CCAN_CFLAGS;
 653 }
 654
 655 static char *opt_set_const_charp(const char *arg, const char **p)
 656 {
 657         return opt_set_charp(arg, cast_const2(char **, p));
 658 }
 659
 660 static char *opt_set_target(const char *arg, struct dgraph_node *all)
 661 {
 662         struct ccanlint *t = find_test(arg);
 663         if (!t)
 664                 return talloc_asprintf(NULL, "unknown --target %s", arg);
 665
 666         targeting = true;
 667         dgraph_add_edge(&t->node, all);
 668         return NULL;
 669 }
 670
 671 static bool run_tests(struct dgraph_node *all,
 672                       bool summary,
 673                       struct manifest *m,
 674                       const char *prefix)
 675 {
 676         struct run_info run;
 677
 678         run.quiet = summary;
 679         run.m = m;
 680         run.prefix = prefix;
 681         run.score = run.total = 0;
 682         run.pass = true;
 683
 684         dgraph_traverse_to(all, run_test, &run);
 685
 686         printf("%sTotal score: %u/%u\n", prefix, run.score, run.total);
 687         return run.pass;
 688 }
 689
 690 static bool add_to_all(const char *member, struct ccanlint *c,
 691                        struct dgraph_node *all)
 692 {
 693         dgraph_add_edge(&c->node, all);
 694         return true;
 695 }
 696
 697 int main(int argc, char *argv[])
 698 {
 699         bool summary = false, pass = true;
 700         unsigned int i;
 701         struct manifest *m;
 702         const char *prefix = "";
 703         char *dir = talloc_getcwd(NULL), *base_dir = dir, *testlink;
 704         struct dgraph_node all;
 705
 706         /* Empty graph node to which we attach everything else. */
 707         dgraph_init_node(&all);
 708
 709         opt_register_early_noarg("--verbose|-v", opt_inc_intval, &verbose,
 710                                  "verbose mode (up to -vvvv)");
 711         opt_register_noarg("-n|--safe-mode", opt_set_bool, &safe_mode,
 712                          "do not compile anything");
 713         opt_register_noarg("-l|--list-tests", list_tests, NULL,
 714                          "list tests ccanlint performs (and exit)");
 715         opt_register_noarg("--test-dep-graph", test_dependency_graph, NULL,
 716                          "print dependency graph of tests in Graphviz .dot format");
 717         opt_register_noarg("-k|--keep", keep_tests, NULL,
 718                          "do not delete ccanlint working files");
 719         opt_register_noarg("--summary|-s", opt_set_bool, &summary,
 720                            "simply give one line summary");
 721         opt_register_arg("-x|--exclude <testname>", exclude_test, NULL, NULL,
 722                          "exclude <testname> (can be used multiple times)");
 723         opt_register_arg("--timeout <milleseconds>", opt_set_uintval,
 724                          NULL, &timeout,
 725                          "ignore (terminate) tests that are slower than this");
 726         opt_register_arg("-t|--target <testname>", opt_set_target, NULL, &all,
 727                          "only run one test (and its prerequisites)");
 728         opt_register_arg("--compiler <compiler>", opt_set_const_charp,
 729                          NULL, &compiler, "set the compiler");
 730         opt_register_arg("--cflags <flags>", opt_set_const_charp,
 731                          NULL, &cflags, "set the compiler flags");
 732         opt_register_noarg("-?|-h|--help", opt_usage_and_exit,
 733                            "\nA program for checking and guiding development"
 734                            " of CCAN modules.",
 735                            "This usage message");
 736
 737         /* Do verbose before anything else... */
 738         opt_early_parse(argc, argv, opt_log_stderr_exit);
 739
 740         /* We move into temporary directory, so gcov dumps its files there. */
 741         if (chdir(temp_dir(talloc_autofree_context())) != 0)
 742                 err(1, "Error changing to %s temporary dir", temp_dir(NULL));
 743
 744         init_tests();
 745
 746         if (verbose >= 3) {
 747                 compile_verbose = true;
 748                 print_test_depends();
 749         }
 750         if (verbose >= 4)
 751                 tools_verbose = true;
 752
 753         opt_parse(&argc, argv, opt_log_stderr_exit);
 754
 755         if (!targeting)
 756                 strmap_iterate(&tests, add_to_all, &all);
 757
 758         /* This links back to the module's test dir. */
 759         testlink = talloc_asprintf(NULL, "%s/test", temp_dir(NULL));
 760
 761         /* Defaults to pwd. */
 762         if (argc == 1) {
 763                 i = 1;
 764                 goto got_dir;
 765         }
 766
 767         for (i = 1; i < argc; i++) {
 768                 unsigned int score, total_score;
 769
 770                 dir = argv[i];
 771
 772                 if (dir[0] != '/')
 773                         dir = talloc_asprintf_append(NULL, "%s/%s",
 774                                                      base_dir, dir);
 775                 while (strends(dir, "/"))
 776                         dir[strlen(dir)-1] = '\0';
 777
 778         got_dir:
 779                 if (dir != base_dir)
 780                         prefix = talloc_append_string(talloc_basename(NULL,dir),
 781                                                       ": ");
 782
 783                 m = get_manifest(talloc_autofree_context(), dir);
 784
 785                 /* FIXME: This has to come after we've got manifest. */
 786                 if (i == 1)
 787                         read_config_header();
 788
 789                 /* Create a symlink from temp dir back to src dir's
 790                  * test directory. */
 791                 unlink(testlink);
 792                 if (symlink(talloc_asprintf(m, "%s/test", dir), testlink) != 0)
 793                         err(1, "Creating test symlink in %s", temp_dir(NULL));
 794
 795                 score = total_score = 0;
 796                 if (!run_tests(&all, summary, m, prefix))
 797                         pass = false;
 798
 799                 reset_tests(&all);
 800         }
 801         return pass ? 0 : 1;
 802 }