libopkg/pkg_hash.c

   1 /* opkg_hash.c - the opkg package management system
   2
   3    Steven M. Ayer
   4
   5    Copyright (C) 2002 Compaq Computer Corporation
   6
   7    This program is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU General Public License as
   9    published by the Free Software Foundation; either version 2, or (at
  10    your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful, but
  13    WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    General Public License for more details.
  16 */
  17
  18 #include <stdio.h>
  19
  20 #include "hash_table.h"
  21 #include "release.h"
  22 #include "pkg.h"
  23 #include "opkg_message.h"
  24 #include "pkg_vec.h"
  25 #include "pkg_hash.h"
  26 #include "parse_util.h"
  27 #include "pkg_parse.h"
  28 #include "opkg_utils.h"
  29 #include "sprintf_alloc.h"
  30 #include "file_util.h"
  31 #include "libbb/libbb.h"
  32
  33 void
  34 pkg_hash_init(void)
  35 {
  36         hash_table_init("pkg-hash", &conf->pkg_hash,
  37                         OPKG_CONF_DEFAULT_HASH_LEN);
  38 }
  39
  40 static void
  41 free_pkgs(const char *key, void *entry, void *data)
  42 {
  43         int i;
  44         abstract_pkg_t *ab_pkg;
  45
  46         /* Each entry in the hash table is an abstract package, which contains
  47          * a list of packages that provide the abstract package.
  48          */
  49
  50         ab_pkg = (abstract_pkg_t*) entry;
  51
  52         if (ab_pkg->pkgs) {
  53                 for (i = 0; i < ab_pkg->pkgs->len; i++) {
  54                         pkg_deinit (ab_pkg->pkgs->pkgs[i]);
  55                         free (ab_pkg->pkgs->pkgs[i]);
  56                 }
  57         }
  58
  59         abstract_pkg_vec_free (ab_pkg->provided_by);
  60         abstract_pkg_vec_free (ab_pkg->replaced_by);
  61         pkg_vec_free (ab_pkg->pkgs);
  62         free (ab_pkg->depended_upon_by);
  63         free (ab_pkg->name);
  64         free (ab_pkg);
  65 }
  66
  67 void
  68 pkg_hash_deinit(void)
  69 {
  70         hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
  71         hash_table_deinit(&conf->pkg_hash);
  72 }
  73
  74 int
  75 dist_hash_add_from_file(const char *lists_dir, pkg_src_t *dist)
  76 {
  77         nv_pair_list_elt_t *l;
  78         char *list_file, *subname;
  79
  80         list_for_each_entry(l , &conf->arch_list.head, node) {
  81                 nv_pair_t *nv = (nv_pair_t *)l->data;
  82                 sprintf_alloc(&subname, "%s-%s", dist->name, nv->name);
  83                 sprintf_alloc(&list_file, "%s/%s", lists_dir, subname);
  84
  85                 if (file_exists(list_file)) {
  86                         if (pkg_hash_add_from_file(list_file, dist, NULL, 0)) {
  87                                 free(list_file);
  88                                 return -1;
  89                         }
  90                         pkg_src_list_append (&conf->pkg_src_list, subname, dist->value, "__dummy__", 0);
  91                 }
  92
  93                 free(list_file);
  94         }
  95
  96         return 0;
  97 }
  98
  99
 100 int
 101 pkg_hash_add_from_file(const char *file_name,
 102                         pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
 103 {
 104         pkg_t *pkg;
 105         FILE *fp;
 106         char *buf;
 107         const size_t len = 4096;
 108         int ret = 0;
 109
 110         fp = fopen(file_name, "r");
 111         if (fp == NULL) {
 112                 opkg_perror(ERROR, "Failed to open %s", file_name);
 113                 return -1;
 114         }
 115
 116         buf = xmalloc(len);
 117
 118         do {
 119                 pkg = pkg_new();
 120                 pkg->src = src;
 121                 pkg->dest = dest;
 122
 123                 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
 124                                 &buf, len);
 125
 126                 if (pkg->name == NULL) {
 127                         /* probably just a blank line */
 128                         ret = 1;
 129                 }
 130
 131                 if (ret) {
 132                         pkg_deinit (pkg);
 133                         free(pkg);
 134                         if (ret == -1)
 135                                 break;
 136                         if (ret == 1)
 137                                 /* Probably a blank line, continue parsing. */
 138                                 ret = 0;
 139                         continue;
 140                 }
 141
 142                 if (!pkg->architecture || !pkg->arch_priority) {
 143                         char *version_str = pkg_version_str_alloc(pkg);
 144                         opkg_msg(NOTICE, "Package %s version %s has no "
 145                                         "valid architecture, ignoring.\n",
 146                                         pkg->name, version_str);
 147                         free(version_str);
 148                         continue;
 149                 }
 150
 151                 hash_insert_pkg(pkg, is_status_file);
 152
 153         } while (!feof(fp));
 154
 155         free(buf);
 156         fclose(fp);
 157
 158         return ret;
 159 }
 160
 161 /*
 162  * Load in feed files from the cached "src" and/or "src/gz" locations.
 163  */
 164 int
 165 pkg_hash_load_feeds(void)
 166 {
 167         pkg_src_list_elt_t *iter;
 168         pkg_src_t *src, *subdist;
 169         char *list_file, *lists_dir;
 170
 171         opkg_msg(INFO, "\n");
 172
 173         lists_dir = conf->restrict_to_default_dest ?
 174                 conf->default_dest->lists_dir : conf->lists_dir;
 175
 176         for (iter = void_list_first(&conf->dist_src_list); iter;
 177                         iter = void_list_next(&conf->dist_src_list, iter)) {
 178
 179                 src = (pkg_src_t *)iter->data;
 180
 181                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 182
 183                 if (file_exists(list_file)) {
 184                         int i;
 185                         release_t *release = release_new();
 186                         if(release_init_from_file(release, list_file)) {
 187                                 free(list_file);
 188                                 return -1;
 189                         }
 190
 191                         unsigned int ncomp;
 192                         const char **comps = release_comps(release, &ncomp);
 193                         subdist = (pkg_src_t *) xmalloc(sizeof(pkg_src_t));
 194                         memcpy(subdist, src, sizeof(pkg_src_t));
 195
 196                         for(i = 0; i < ncomp; i++){
 197                                 subdist->name = NULL;
 198                                 sprintf_alloc(&subdist->name, "%s-%s", src->name, comps[i]);
 199                                 if (dist_hash_add_from_file(lists_dir, subdist)) {
 200                                         free(subdist->name); free(subdist);
 201                                         free(list_file);
 202                                         return -1;
 203                                 }
 204                         }
 205                         free(subdist->name); free(subdist);
 206                 }
 207                 free(list_file);
 208         }
 209
 210         for (iter = void_list_first(&conf->pkg_src_list); iter;
 211                         iter = void_list_next(&conf->pkg_src_list, iter)) {
 212
 213                 src = (pkg_src_t *)iter->data;
 214
 215                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 216
 217                 if (file_exists(list_file)) {
 218                         if (pkg_hash_add_from_file(list_file, src, NULL, 0)) {
 219                                 free(list_file);
 220                                 return -1;
 221                         }
 222                 }
 223                 free(list_file);
 224         }
 225
 226         return 0;
 227 }
 228
 229 /*
 230  * Load in status files from the configured "dest"s.
 231  */
 232 int
 233 pkg_hash_load_status_files(void)
 234 {
 235         pkg_dest_list_elt_t *iter;
 236         pkg_dest_t *dest;
 237
 238         opkg_msg(INFO, "\n");
 239
 240         for (iter = void_list_first(&conf->pkg_dest_list); iter;
 241                         iter = void_list_next(&conf->pkg_dest_list, iter)) {
 242
 243                 dest = (pkg_dest_t *)iter->data;
 244
 245                 if (file_exists(dest->status_file_name)) {
 246                         if (pkg_hash_add_from_file(dest->status_file_name, NULL, dest, 1))
 247                                 return -1;
 248                 }
 249         }
 250
 251         return 0;
 252 }
 253
 254 static abstract_pkg_t *
 255 abstract_pkg_fetch_by_name(const char * pkg_name)
 256 {
 257         return (abstract_pkg_t *)hash_table_get(&conf->pkg_hash, pkg_name);
 258 }
 259
 260 pkg_t *
 261 pkg_hash_fetch_best_installation_candidate(abstract_pkg_t *apkg,
 262                 int (*constraint_fcn)(pkg_t *pkg, void *cdata),
 263                 void *cdata, int quiet)
 264 {
 265      int i, j;
 266      int nprovides = 0;
 267      int nmatching = 0;
 268      int wrong_arch_found = 0;
 269      pkg_vec_t *matching_pkgs;
 270      abstract_pkg_vec_t *matching_apkgs;
 271      abstract_pkg_vec_t *provided_apkg_vec;
 272      abstract_pkg_t **provided_apkgs;
 273      abstract_pkg_vec_t *providers;
 274      pkg_t *latest_installed_parent = NULL;
 275      pkg_t *latest_matching = NULL;
 276      pkg_t *priorized_matching = NULL;
 277      pkg_t *held_pkg = NULL;
 278      pkg_t *good_pkg_by_name = NULL;
 279
 280      if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
 281           return NULL;
 282
 283      matching_pkgs = pkg_vec_alloc();
 284      matching_apkgs = abstract_pkg_vec_alloc();
 285      providers = abstract_pkg_vec_alloc();
 286
 287      opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
 288
 289      provided_apkg_vec = apkg->provided_by;
 290      nprovides = provided_apkg_vec->len;
 291      provided_apkgs = provided_apkg_vec->pkgs;
 292      if (nprovides > 1)
 293           opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name, nprovides);
 294
 295      /* accumulate all the providers */
 296      for (i = 0; i < nprovides; i++) {
 297           abstract_pkg_t *provider_apkg = provided_apkgs[i];
 298           opkg_msg(DEBUG, "Adding %s to providers.\n", provider_apkg->name);
 299           abstract_pkg_vec_insert(providers, provider_apkg);
 300      }
 301      nprovides = providers->len;
 302
 303      for (i = 0; i < nprovides; i++) {
 304           abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
 305           abstract_pkg_t *replacement_apkg = NULL;
 306           pkg_vec_t *vec;
 307
 308           if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
 309                replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 310                if (provider_apkg->replaced_by->len > 1) {
 311                     opkg_msg(NOTICE, "Multiple replacers for %s, "
 312                                 "using first one (%s).\n",
 313                                 provider_apkg->name, replacement_apkg->name);
 314                }
 315           }
 316
 317           if (replacement_apkg)
 318                opkg_msg(DEBUG, "replacement_apkg=%s for provider_apkg=%s.\n",
 319                             replacement_apkg->name, provider_apkg->name);
 320
 321           if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 322                if (abstract_pkg_vec_contains(providers, replacement_apkg))
 323                     continue;
 324                else
 325                     provider_apkg = replacement_apkg;
 326           }
 327
 328           if (!(vec = provider_apkg->pkgs)) {
 329                opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
 330                                provider_apkg->name);
 331                continue;
 332           }
 333
 334
 335           /* now check for supported architecture */
 336           {
 337                int max_count = 0;
 338
 339                /* count packages matching max arch priority and keep track of last one */
 340                for (j=0; j<vec->len; j++) {
 341                     pkg_t *maybe = vec->pkgs[j];
 342                     opkg_msg(DEBUG, "%s arch=%s arch_priority=%d version=%s.\n",
 343                                  maybe->name, maybe->architecture,
 344                                  maybe->arch_priority, maybe->version);
 345                     /* We make sure not to add the same package twice. Need to search for the reason why
 346                        they show up twice sometimes. */
 347                     if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
 348                          max_count++;
 349                          abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
 350                          pkg_vec_insert(matching_pkgs, maybe);
 351                     }
 352                }
 353
 354                 if (vec->len > 0 && matching_pkgs->len < 1)
 355                         wrong_arch_found = 1;
 356           }
 357      }
 358
 359      if (matching_pkgs->len < 1) {
 360           if (wrong_arch_found)
 361                 opkg_msg(ERROR, "Packages for %s found, but"
 362                         " incompatible with the architectures configured\n",
 363                         apkg->name);
 364           pkg_vec_free(matching_pkgs);
 365           abstract_pkg_vec_free(matching_apkgs);
 366           abstract_pkg_vec_free(providers);
 367           return NULL;
 368      }
 369
 370
 371      if (matching_pkgs->len > 1)
 372           pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
 373      if (matching_apkgs->len > 1)
 374           abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 375
 376      for (i = 0; i < matching_pkgs->len; i++) {
 377           pkg_t *matching = matching_pkgs->pkgs[i];
 378           if (constraint_fcn(matching, cdata)) {
 379              opkg_msg(DEBUG, "Candidate: %s %s.\n",
 380                              matching->name, matching->version) ;
 381              good_pkg_by_name = matching;
 382              /* It has been provided by hand, so it is what user want */
 383              if (matching->provided_by_hand == 1)
 384                 break;
 385           }
 386      }
 387
 388
 389      for (i = 0; i < matching_pkgs->len; i++) {
 390           pkg_t *matching = matching_pkgs->pkgs[i];
 391           latest_matching = matching;
 392           if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
 393                latest_installed_parent = matching;
 394           if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
 395                if (held_pkg)
 396                     opkg_msg(NOTICE, "Multiple packages (%s and %s) providing"
 397                                 " same name marked HOLD or PREFER. "
 398                                 "Using latest.\n",
 399                                 held_pkg->name, matching->name);
 400                held_pkg = matching;
 401           }
 402      }
 403
 404      if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
 405           int prio = 0;
 406           for (i = 0; i < matching_pkgs->len; i++) {
 407               pkg_t *matching = matching_pkgs->pkgs[i];
 408                   if (matching->arch_priority > prio) {
 409                       priorized_matching = matching;
 410                       prio = matching->arch_priority;
 411                       opkg_msg(DEBUG, "Match %s with priority %i.\n",
 412                                 matching->name, prio);
 413                   }
 414               }
 415
 416           }
 417
 418      if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
 419           opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
 420                                 matching_pkgs->len, apkg->name);
 421           for (i = 0; i < matching_pkgs->len; i++) {
 422                pkg_t *matching = matching_pkgs->pkgs[i];
 423                opkg_msg(INFO, "%s %s %s\n",
 424                         matching->name, matching->version,
 425                         matching->architecture);
 426           }
 427      }
 428
 429      nmatching = matching_apkgs->len;
 430
 431      pkg_vec_free(matching_pkgs);
 432      abstract_pkg_vec_free(matching_apkgs);
 433      abstract_pkg_vec_free(providers);
 434
 435      if (good_pkg_by_name) {   /* We found a good candidate, we will install it */
 436           return good_pkg_by_name;
 437      }
 438      if (held_pkg) {
 439           opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
 440           return held_pkg;
 441      }
 442      if (latest_installed_parent) {
 443           opkg_msg(INFO, "Using latest version of installed package %s.\n",
 444                         latest_installed_parent->name);
 445           return latest_installed_parent;
 446      }
 447      if (priorized_matching) {
 448           opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
 449                         priorized_matching->name, priorized_matching->version,
 450                         priorized_matching->architecture);
 451           return priorized_matching;
 452      }
 453      if (nmatching > 1) {
 454           opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
 455                         nmatching);
 456           return NULL;
 457      }
 458      if (latest_matching) {
 459           opkg_msg(INFO, "Using latest matching %s %s %s.\n",
 460                         latest_matching->name, latest_matching->version,
 461                         latest_matching->architecture);
 462           return latest_matching;
 463      }
 464      return NULL;
 465 }
 466
 467 static int
 468 pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
 469 {
 470         const char *name = (const char *)cdata;
 471
 472         if (strcmp(pkg->name, name) == 0)
 473                 return 1;
 474         else
 475                 return 0;
 476 }
 477
 478 static pkg_vec_t *
 479 pkg_vec_fetch_by_name(const char *pkg_name)
 480 {
 481         abstract_pkg_t * ab_pkg;
 482
 483         if(!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 484                 return NULL;
 485
 486         if (ab_pkg->pkgs)
 487                 return ab_pkg->pkgs;
 488
 489         if (ab_pkg->provided_by) {
 490                 abstract_pkg_t *abpkg =  abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 491                 if (abpkg != NULL)
 492                         return abpkg->pkgs;
 493                 else
 494                         return ab_pkg->pkgs;
 495         }
 496
 497         return NULL;
 498 }
 499
 500
 501 pkg_t *
 502 pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
 503 {
 504         abstract_pkg_t *apkg = NULL;
 505
 506         if (!(apkg = abstract_pkg_fetch_by_name(name)))
 507                 return NULL;
 508
 509         return pkg_hash_fetch_best_installation_candidate(apkg,
 510                                 pkg_name_constraint_fcn, apkg->name, 0);
 511 }
 512
 513
 514 pkg_t *
 515 pkg_hash_fetch_by_name_version(const char *pkg_name, const char * version)
 516 {
 517         pkg_vec_t * vec;
 518         int i;
 519         char *version_str = NULL;
 520
 521         if(!(vec = pkg_vec_fetch_by_name(pkg_name)))
 522                 return NULL;
 523
 524         for(i = 0; i < vec->len; i++) {
 525                 version_str = pkg_version_str_alloc(vec->pkgs[i]);
 526                 if(!strcmp(version_str, version)) {
 527                         free(version_str);
 528                         break;
 529                 }
 530                 free(version_str);
 531         }
 532
 533         if(i == vec->len)
 534                 return NULL;
 535
 536         return vec->pkgs[i];
 537 }
 538
 539 pkg_t *
 540 pkg_hash_fetch_installed_by_name_dest(const char *pkg_name, pkg_dest_t *dest)
 541 {
 542         pkg_vec_t * vec;
 543         int i;
 544
 545         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 546                 return NULL;
 547         }
 548
 549         for (i = 0; i < vec->len; i++)
 550                 if((vec->pkgs[i]->state_status == SS_INSTALLED
 551                                 || vec->pkgs[i]->state_status == SS_UNPACKED)
 552                                 && vec->pkgs[i]->dest == dest) {
 553                         return vec->pkgs[i];
 554         }
 555
 556         return NULL;
 557 }
 558
 559 pkg_t *
 560 pkg_hash_fetch_installed_by_name(const char *pkg_name)
 561 {
 562         pkg_vec_t * vec;
 563         int i;
 564
 565         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 566                 return NULL;
 567         }
 568
 569         for (i = 0; i < vec->len; i++) {
 570                 if (vec->pkgs[i]->state_status == SS_INSTALLED
 571                                 || vec->pkgs[i]->state_status == SS_UNPACKED) {
 572                         return vec->pkgs[i];
 573                 }
 574         }
 575
 576         return NULL;
 577 }
 578
 579
 580 static void
 581 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 582 {
 583         int j;
 584         abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 585         pkg_vec_t *all = (pkg_vec_t *)data;
 586         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 587
 588         if (!pkg_vec)
 589                 return;
 590
 591         for (j = 0; j < pkg_vec->len; j++) {
 592                 pkg_t *pkg = pkg_vec->pkgs[j];
 593                 pkg_vec_insert(all, pkg);
 594         }
 595 }
 596
 597 void
 598 pkg_hash_fetch_available(pkg_vec_t *all)
 599 {
 600         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
 601                         all);
 602 }
 603
 604 static void
 605 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
 606 {
 607         abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 608         pkg_vec_t *all = (pkg_vec_t *)data;
 609         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 610         int j;
 611
 612         if (!pkg_vec)
 613                 return;
 614
 615         for (j = 0; j < pkg_vec->len; j++) {
 616                 pkg_t *pkg = pkg_vec->pkgs[j];
 617                 if (pkg->state_status == SS_INSTALLED
 618                                 || pkg->state_status == SS_UNPACKED)
 619                         pkg_vec_insert(all, pkg);
 620         }
 621 }
 622
 623 void
 624 pkg_hash_fetch_all_installed(pkg_vec_t *all)
 625 {
 626         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
 627                         all);
 628 }
 629
 630 /*
 631  * This assumes that the abstract pkg doesn't exist.
 632  */
 633 static abstract_pkg_t *
 634 add_new_abstract_pkg_by_name(const char *pkg_name)
 635 {
 636         abstract_pkg_t *ab_pkg;
 637
 638         ab_pkg = abstract_pkg_new();
 639
 640         ab_pkg->name = xstrdup(pkg_name);
 641         hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
 642
 643         return ab_pkg;
 644 }
 645
 646
 647 abstract_pkg_t *
 648 ensure_abstract_pkg_by_name(const char *pkg_name)
 649 {
 650         abstract_pkg_t * ab_pkg;
 651
 652         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 653                 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
 654
 655         return ab_pkg;
 656 }
 657
 658 void
 659 hash_insert_pkg(pkg_t *pkg, int set_status)
 660 {
 661         abstract_pkg_t * ab_pkg;
 662
 663         ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
 664         if (!ab_pkg->pkgs)
 665                 ab_pkg->pkgs = pkg_vec_alloc();
 666
 667         if (pkg->state_status == SS_INSTALLED) {
 668                 ab_pkg->state_status = SS_INSTALLED;
 669         } else if (pkg->state_status == SS_UNPACKED) {
 670                 ab_pkg->state_status = SS_UNPACKED;
 671         }
 672
 673         buildDepends(pkg);
 674
 675         buildProvides(ab_pkg, pkg);
 676
 677         /* Need to build the conflicts graph before replaces for correct
 678          * calculation of replaced_by relation.
 679          */
 680         buildConflicts(pkg);
 681
 682         buildReplaces(ab_pkg, pkg);
 683
 684         buildDependedUponBy(pkg, ab_pkg);
 685
 686         pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
 687         pkg->parent = ab_pkg;
 688 }
 689
 690 static const char *
 691 strip_offline_root(const char *file_name)
 692 {
 693         unsigned int len;
 694
 695         if (conf->offline_root) {
 696                 len = strlen(conf->offline_root);
 697                 if (strncmp(file_name, conf->offline_root, len) == 0)
 698                         file_name += len;
 699         }
 700
 701         return file_name;
 702 }
 703
 704 void
 705 file_hash_remove(const char *file_name)
 706 {
 707         file_name = strip_offline_root(file_name);
 708         hash_table_remove(&conf->file_hash, file_name);
 709 }
 710
 711 pkg_t *
 712 file_hash_get_file_owner(const char *file_name)
 713 {
 714         file_name = strip_offline_root(file_name);
 715         return hash_table_get(&conf->file_hash, file_name);
 716 }
 717
 718 void
 719 file_hash_set_file_owner(const char *file_name, pkg_t *owning_pkg)
 720 {
 721         pkg_t *old_owning_pkg;
 722         int file_name_len = strlen(file_name);
 723
 724         if (file_name[file_name_len -1] == '/')
 725                 return;
 726
 727         file_name = strip_offline_root(file_name);
 728
 729         old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
 730         hash_table_insert(&conf->file_hash, file_name, owning_pkg);
 731
 732         if (old_owning_pkg) {
 733                 pkg_get_installed_files(old_owning_pkg);
 734                 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 735                 pkg_free_installed_files(old_owning_pkg);
 736
 737                 /* mark this package to have its filelist written */
 738                 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 739                 owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 740         }
 741 }