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 #include "libbb/gzip.h"
  33
  34 void
  35 pkg_hash_init(void)
  36 {
  37         hash_table_init("pkg-hash", &conf->pkg_hash,
  38                         OPKG_CONF_DEFAULT_HASH_LEN);
  39 }
  40
  41 static void
  42 free_pkgs(const char *key, void *entry, void *data)
  43 {
  44         int i;
  45         abstract_pkg_t *ab_pkg;
  46
  47         /* Each entry in the hash table is an abstract package, which contains
  48          * a list of packages that provide the abstract package.
  49          */
  50
  51         ab_pkg = (abstract_pkg_t*) entry;
  52
  53         if (ab_pkg->pkgs) {
  54                 for (i = 0; i < ab_pkg->pkgs->len; i++) {
  55                         pkg_deinit (ab_pkg->pkgs->pkgs[i]);
  56                         free (ab_pkg->pkgs->pkgs[i]);
  57                 }
  58         }
  59
  60         abstract_pkg_vec_free (ab_pkg->provided_by);
  61         abstract_pkg_vec_free (ab_pkg->replaced_by);
  62         pkg_vec_free (ab_pkg->pkgs);
  63         free (ab_pkg->depended_upon_by);
  64         free (ab_pkg->name);
  65         free (ab_pkg);
  66 }
  67
  68 void
  69 pkg_hash_deinit(void)
  70 {
  71         hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
  72         hash_table_deinit(&conf->pkg_hash);
  73 }
  74
  75 int
  76 dist_hash_add_from_file(const char *lists_dir, pkg_src_t *dist)
  77 {
  78         nv_pair_list_elt_t *l;
  79         char *list_file, *subname;
  80
  81         list_for_each_entry(l , &conf->arch_list.head, node) {
  82                 nv_pair_t *nv = (nv_pair_t *)l->data;
  83                 sprintf_alloc(&subname, "%s-%s", dist->name, nv->name);
  84                 sprintf_alloc(&list_file, "%s/%s", lists_dir, subname);
  85
  86                 if (file_exists(list_file)) {
  87                         if (pkg_hash_add_from_file(list_file, dist, NULL, 0)) {
  88                                 free(list_file);
  89                                 return -1;
  90                         }
  91                         pkg_src_list_append (&conf->pkg_src_list, subname, dist->value, "__dummy__", 0);
  92                 }
  93
  94                 free(list_file);
  95         }
  96
  97         return 0;
  98 }
  99
 100
 101 int
 102 pkg_hash_add_from_file(const char *file_name,
 103                         pkg_src_t *src, pkg_dest_t *dest, int is_status_file)
 104 {
 105         pkg_t *pkg;
 106         FILE *fp;
 107         char *buf;
 108         const size_t len = 4096;
 109         int ret = 0;
 110         struct gzip_handle zh;
 111
 112         if (src && src->gzip) {
 113                 fp = gzip_fdopen(&zh, file_name);
 114         }
 115         else {
 116                 fp = fopen(file_name, "r");
 117         }
 118
 119         if (fp == NULL) {
 120                 opkg_perror(ERROR, "Failed to open %s", file_name);
 121                 return -1;
 122         }
 123
 124         buf = xmalloc(len);
 125
 126         do {
 127                 pkg = pkg_new();
 128                 pkg->src = src;
 129                 pkg->dest = dest;
 130
 131                 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
 132                                 &buf, len);
 133
 134                 if (pkg->name == NULL) {
 135                         /* probably just a blank line */
 136                         ret = 1;
 137                 }
 138
 139                 if (ret) {
 140                         pkg_deinit (pkg);
 141                         free(pkg);
 142                         if (ret == -1)
 143                                 break;
 144                         if (ret == 1)
 145                                 /* Probably a blank line, continue parsing. */
 146                                 ret = 0;
 147                         continue;
 148                 }
 149
 150                 if (!pkg->architecture || !pkg->arch_priority) {
 151                         char *version_str = pkg_version_str_alloc(pkg);
 152                         opkg_msg(NOTICE, "Package %s version %s has no "
 153                                         "valid architecture, ignoring.\n",
 154                                         pkg->name, version_str);
 155                         free(version_str);
 156                         continue;
 157                 }
 158
 159                 hash_insert_pkg(pkg, is_status_file);
 160
 161         } while (!feof(fp));
 162
 163         free(buf);
 164         fclose(fp);
 165
 166         if (src && src->gzip)
 167                 gzip_close(&zh);
 168
 169         return ret;
 170 }
 171
 172 /*
 173  * Load in feed files from the cached "src" and/or "src/gz" locations.
 174  */
 175 int
 176 pkg_hash_load_feeds(void)
 177 {
 178         pkg_src_list_elt_t *iter;
 179         pkg_src_t *src, *subdist;
 180         char *list_file, *lists_dir;
 181
 182         opkg_msg(INFO, "\n");
 183
 184         lists_dir = conf->restrict_to_default_dest ?
 185                 conf->default_dest->lists_dir : conf->lists_dir;
 186
 187         for (iter = void_list_first(&conf->dist_src_list); iter;
 188                         iter = void_list_next(&conf->dist_src_list, iter)) {
 189
 190                 src = (pkg_src_t *)iter->data;
 191
 192                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 193
 194                 if (file_exists(list_file)) {
 195                         int i;
 196                         release_t *release = release_new();
 197                         if(release_init_from_file(release, list_file)) {
 198                                 free(list_file);
 199                                 return -1;
 200                         }
 201
 202                         unsigned int ncomp;
 203                         const char **comps = release_comps(release, &ncomp);
 204                         subdist = (pkg_src_t *) xmalloc(sizeof(pkg_src_t));
 205                         memcpy(subdist, src, sizeof(pkg_src_t));
 206
 207                         for(i = 0; i < ncomp; i++){
 208                                 subdist->name = NULL;
 209                                 sprintf_alloc(&subdist->name, "%s-%s", src->name, comps[i]);
 210                                 if (dist_hash_add_from_file(lists_dir, subdist)) {
 211                                         free(subdist->name); free(subdist);
 212                                         free(list_file);
 213                                         return -1;
 214                                 }
 215                         }
 216                         free(subdist->name); free(subdist);
 217                 }
 218                 free(list_file);
 219         }
 220
 221         for (iter = void_list_first(&conf->pkg_src_list); iter;
 222                         iter = void_list_next(&conf->pkg_src_list, iter)) {
 223
 224                 src = (pkg_src_t *)iter->data;
 225
 226                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 227
 228                 if (file_exists(list_file)) {
 229                         if (pkg_hash_add_from_file(list_file, src, NULL, 0)) {
 230                                 free(list_file);
 231                                 return -1;
 232                         }
 233                 }
 234                 free(list_file);
 235         }
 236
 237         return 0;
 238 }
 239
 240 /*
 241  * Load in status files from the configured "dest"s.
 242  */
 243 int
 244 pkg_hash_load_status_files(void)
 245 {
 246         pkg_dest_list_elt_t *iter;
 247         pkg_dest_t *dest;
 248
 249         opkg_msg(INFO, "\n");
 250
 251         for (iter = void_list_first(&conf->pkg_dest_list); iter;
 252                         iter = void_list_next(&conf->pkg_dest_list, iter)) {
 253
 254                 dest = (pkg_dest_t *)iter->data;
 255
 256                 if (file_exists(dest->status_file_name)) {
 257                         if (pkg_hash_add_from_file(dest->status_file_name, NULL, dest, 1))
 258                                 return -1;
 259                 }
 260         }
 261
 262         return 0;
 263 }
 264
 265 static abstract_pkg_t *
 266 abstract_pkg_fetch_by_name(const char * pkg_name)
 267 {
 268         return (abstract_pkg_t *)hash_table_get(&conf->pkg_hash, pkg_name);
 269 }
 270
 271 pkg_t *
 272 pkg_hash_fetch_best_installation_candidate(abstract_pkg_t *apkg,
 273                 int (*constraint_fcn)(pkg_t *pkg, void *cdata),
 274                 void *cdata, int quiet)
 275 {
 276      int i, j;
 277      int nprovides = 0;
 278      int nmatching = 0;
 279      int wrong_arch_found = 0;
 280      pkg_vec_t *matching_pkgs;
 281      abstract_pkg_vec_t *matching_apkgs;
 282      abstract_pkg_vec_t *provided_apkg_vec;
 283      abstract_pkg_t **provided_apkgs;
 284      abstract_pkg_vec_t *providers;
 285      pkg_t *latest_installed_parent = NULL;
 286      pkg_t *latest_matching = NULL;
 287      pkg_t *priorized_matching = NULL;
 288      pkg_t *held_pkg = NULL;
 289      pkg_t *good_pkg_by_name = NULL;
 290
 291      if (apkg == NULL || apkg->provided_by == NULL || (apkg->provided_by->len == 0))
 292           return NULL;
 293
 294      matching_pkgs = pkg_vec_alloc();
 295      matching_apkgs = abstract_pkg_vec_alloc();
 296      providers = abstract_pkg_vec_alloc();
 297
 298      opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
 299
 300      provided_apkg_vec = apkg->provided_by;
 301      nprovides = provided_apkg_vec->len;
 302      provided_apkgs = provided_apkg_vec->pkgs;
 303      if (nprovides > 1)
 304           opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name, nprovides);
 305
 306      /* accumulate all the providers */
 307      for (i = 0; i < nprovides; i++) {
 308           abstract_pkg_t *provider_apkg = provided_apkgs[i];
 309           opkg_msg(DEBUG, "Adding %s to providers.\n", provider_apkg->name);
 310           abstract_pkg_vec_insert(providers, provider_apkg);
 311      }
 312      nprovides = providers->len;
 313
 314      for (i = 0; i < nprovides; i++) {
 315           abstract_pkg_t *provider_apkg = abstract_pkg_vec_get(providers, i);
 316           abstract_pkg_t *replacement_apkg = NULL;
 317           pkg_vec_t *vec;
 318
 319           if (provider_apkg->replaced_by && provider_apkg->replaced_by->len) {
 320                replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 321                if (provider_apkg->replaced_by->len > 1) {
 322                     opkg_msg(NOTICE, "Multiple replacers for %s, "
 323                                 "using first one (%s).\n",
 324                                 provider_apkg->name, replacement_apkg->name);
 325                }
 326           }
 327
 328           if (replacement_apkg)
 329                opkg_msg(DEBUG, "replacement_apkg=%s for provider_apkg=%s.\n",
 330                             replacement_apkg->name, provider_apkg->name);
 331
 332           if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 333                if (abstract_pkg_vec_contains(providers, replacement_apkg))
 334                     continue;
 335                else
 336                     provider_apkg = replacement_apkg;
 337           }
 338
 339           if (!(vec = provider_apkg->pkgs)) {
 340                opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
 341                                provider_apkg->name);
 342                continue;
 343           }
 344
 345
 346           /* now check for supported architecture */
 347           {
 348                int max_count = 0;
 349
 350                /* count packages matching max arch priority and keep track of last one */
 351                for (j=0; j<vec->len; j++) {
 352                     pkg_t *maybe = vec->pkgs[j];
 353                     opkg_msg(DEBUG, "%s arch=%s arch_priority=%d version=%s.\n",
 354                                  maybe->name, maybe->architecture,
 355                                  maybe->arch_priority, maybe->version);
 356                     /* We make sure not to add the same package twice. Need to search for the reason why
 357                        they show up twice sometimes. */
 358                     if ((maybe->arch_priority > 0) && (! pkg_vec_contains(matching_pkgs, maybe))) {
 359                          max_count++;
 360                          abstract_pkg_vec_insert(matching_apkgs, maybe->parent);
 361                          pkg_vec_insert(matching_pkgs, maybe);
 362                     }
 363                }
 364
 365                 if (vec->len > 0 && matching_pkgs->len < 1)
 366                         wrong_arch_found = 1;
 367           }
 368      }
 369
 370      if (matching_pkgs->len < 1) {
 371           if (wrong_arch_found)
 372                 opkg_msg(ERROR, "Packages for %s found, but"
 373                         " incompatible with the architectures configured\n",
 374                         apkg->name);
 375           pkg_vec_free(matching_pkgs);
 376           abstract_pkg_vec_free(matching_apkgs);
 377           abstract_pkg_vec_free(providers);
 378           return NULL;
 379      }
 380
 381
 382      if (matching_pkgs->len > 1)
 383           pkg_vec_sort(matching_pkgs, pkg_name_version_and_architecture_compare);
 384      if (matching_apkgs->len > 1)
 385           abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 386
 387      for (i = 0; i < matching_pkgs->len; i++) {
 388           pkg_t *matching = matching_pkgs->pkgs[i];
 389           if (constraint_fcn(matching, cdata)) {
 390              opkg_msg(DEBUG, "Candidate: %s %s.\n",
 391                              matching->name, matching->version) ;
 392              good_pkg_by_name = matching;
 393              /* It has been provided by hand, so it is what user want */
 394              if (matching->provided_by_hand == 1)
 395                 break;
 396           }
 397      }
 398
 399
 400      for (i = 0; i < matching_pkgs->len; i++) {
 401           pkg_t *matching = matching_pkgs->pkgs[i];
 402           latest_matching = matching;
 403           if (matching->parent->state_status == SS_INSTALLED || matching->parent->state_status == SS_UNPACKED)
 404                latest_installed_parent = matching;
 405           if (matching->state_flag & (SF_HOLD|SF_PREFER)) {
 406                if (held_pkg)
 407                     opkg_msg(NOTICE, "Multiple packages (%s and %s) providing"
 408                                 " same name marked HOLD or PREFER. "
 409                                 "Using latest.\n",
 410                                 held_pkg->name, matching->name);
 411                held_pkg = matching;
 412           }
 413      }
 414
 415      if (!good_pkg_by_name && !held_pkg && !latest_installed_parent && matching_apkgs->len > 1 && !quiet) {
 416           int prio = 0;
 417           for (i = 0; i < matching_pkgs->len; i++) {
 418               pkg_t *matching = matching_pkgs->pkgs[i];
 419                   if (matching->arch_priority > prio) {
 420                       priorized_matching = matching;
 421                       prio = matching->arch_priority;
 422                       opkg_msg(DEBUG, "Match %s with priority %i.\n",
 423                                 matching->name, prio);
 424                   }
 425               }
 426
 427           }
 428
 429      if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
 430           opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
 431                                 matching_pkgs->len, apkg->name);
 432           for (i = 0; i < matching_pkgs->len; i++) {
 433                pkg_t *matching = matching_pkgs->pkgs[i];
 434                opkg_msg(INFO, "%s %s %s\n",
 435                         matching->name, matching->version,
 436                         matching->architecture);
 437           }
 438      }
 439
 440      nmatching = matching_apkgs->len;
 441
 442      pkg_vec_free(matching_pkgs);
 443      abstract_pkg_vec_free(matching_apkgs);
 444      abstract_pkg_vec_free(providers);
 445
 446      if (good_pkg_by_name) {   /* We found a good candidate, we will install it */
 447           return good_pkg_by_name;
 448      }
 449      if (held_pkg) {
 450           opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
 451           return held_pkg;
 452      }
 453      if (latest_installed_parent) {
 454           opkg_msg(INFO, "Using latest version of installed package %s.\n",
 455                         latest_installed_parent->name);
 456           return latest_installed_parent;
 457      }
 458      if (priorized_matching) {
 459           opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
 460                         priorized_matching->name, priorized_matching->version,
 461                         priorized_matching->architecture);
 462           return priorized_matching;
 463      }
 464      if (nmatching > 1) {
 465           opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
 466                         nmatching);
 467           return NULL;
 468      }
 469      if (latest_matching) {
 470           opkg_msg(INFO, "Using latest matching %s %s %s.\n",
 471                         latest_matching->name, latest_matching->version,
 472                         latest_matching->architecture);
 473           return latest_matching;
 474      }
 475      return NULL;
 476 }
 477
 478 static int
 479 pkg_name_constraint_fcn(pkg_t *pkg, void *cdata)
 480 {
 481         const char *name = (const char *)cdata;
 482
 483         if (strcmp(pkg->name, name) == 0)
 484                 return 1;
 485         else
 486                 return 0;
 487 }
 488
 489 static pkg_vec_t *
 490 pkg_vec_fetch_by_name(const char *pkg_name)
 491 {
 492         abstract_pkg_t * ab_pkg;
 493
 494         if(!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 495                 return NULL;
 496
 497         if (ab_pkg->pkgs)
 498                 return ab_pkg->pkgs;
 499
 500         if (ab_pkg->provided_by) {
 501                 abstract_pkg_t *abpkg =  abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 502                 if (abpkg != NULL)
 503                         return abpkg->pkgs;
 504                 else
 505                         return ab_pkg->pkgs;
 506         }
 507
 508         return NULL;
 509 }
 510
 511
 512 pkg_t *
 513 pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
 514 {
 515         abstract_pkg_t *apkg = NULL;
 516
 517         if (!(apkg = abstract_pkg_fetch_by_name(name)))
 518                 return NULL;
 519
 520         return pkg_hash_fetch_best_installation_candidate(apkg,
 521                                 pkg_name_constraint_fcn, apkg->name, 0);
 522 }
 523
 524
 525 pkg_t *
 526 pkg_hash_fetch_by_name_version(const char *pkg_name, const char * version)
 527 {
 528         pkg_vec_t * vec;
 529         int i;
 530         char *version_str = NULL;
 531
 532         if(!(vec = pkg_vec_fetch_by_name(pkg_name)))
 533                 return NULL;
 534
 535         for(i = 0; i < vec->len; i++) {
 536                 version_str = pkg_version_str_alloc(vec->pkgs[i]);
 537                 if(!strcmp(version_str, version)) {
 538                         free(version_str);
 539                         break;
 540                 }
 541                 free(version_str);
 542         }
 543
 544         if(i == vec->len)
 545                 return NULL;
 546
 547         return vec->pkgs[i];
 548 }
 549
 550 pkg_t *
 551 pkg_hash_fetch_installed_by_name_dest(const char *pkg_name, pkg_dest_t *dest)
 552 {
 553         pkg_vec_t * vec;
 554         int i;
 555
 556         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 557                 return NULL;
 558         }
 559
 560         for (i = 0; i < vec->len; i++)
 561                 if((vec->pkgs[i]->state_status == SS_INSTALLED
 562                                 || vec->pkgs[i]->state_status == SS_UNPACKED)
 563                                 && vec->pkgs[i]->dest == dest) {
 564                         return vec->pkgs[i];
 565         }
 566
 567         return NULL;
 568 }
 569
 570 pkg_t *
 571 pkg_hash_fetch_installed_by_name(const char *pkg_name)
 572 {
 573         pkg_vec_t * vec;
 574         int i;
 575
 576         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 577                 return NULL;
 578         }
 579
 580         for (i = 0; i < vec->len; i++) {
 581                 if (vec->pkgs[i]->state_status == SS_INSTALLED
 582                                 || vec->pkgs[i]->state_status == SS_UNPACKED) {
 583                         return vec->pkgs[i];
 584                 }
 585         }
 586
 587         return NULL;
 588 }
 589
 590
 591 static void
 592 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 593 {
 594         int j;
 595         abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 596         pkg_vec_t *all = (pkg_vec_t *)data;
 597         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 598
 599         if (!pkg_vec)
 600                 return;
 601
 602         for (j = 0; j < pkg_vec->len; j++) {
 603                 pkg_t *pkg = pkg_vec->pkgs[j];
 604                 pkg_vec_insert(all, pkg);
 605         }
 606 }
 607
 608 void
 609 pkg_hash_fetch_available(pkg_vec_t *all)
 610 {
 611         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
 612                         all);
 613 }
 614
 615 static void
 616 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry, void *data)
 617 {
 618         abstract_pkg_t *ab_pkg = (abstract_pkg_t *)entry;
 619         pkg_vec_t *all = (pkg_vec_t *)data;
 620         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 621         int j;
 622
 623         if (!pkg_vec)
 624                 return;
 625
 626         for (j = 0; j < pkg_vec->len; j++) {
 627                 pkg_t *pkg = pkg_vec->pkgs[j];
 628                 if (pkg->state_status == SS_INSTALLED
 629                                 || pkg->state_status == SS_UNPACKED)
 630                         pkg_vec_insert(all, pkg);
 631         }
 632 }
 633
 634 void
 635 pkg_hash_fetch_all_installed(pkg_vec_t *all)
 636 {
 637         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
 638                         all);
 639 }
 640
 641 /*
 642  * This assumes that the abstract pkg doesn't exist.
 643  */
 644 static abstract_pkg_t *
 645 add_new_abstract_pkg_by_name(const char *pkg_name)
 646 {
 647         abstract_pkg_t *ab_pkg;
 648
 649         ab_pkg = abstract_pkg_new();
 650
 651         ab_pkg->name = xstrdup(pkg_name);
 652         hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
 653
 654         return ab_pkg;
 655 }
 656
 657
 658 abstract_pkg_t *
 659 ensure_abstract_pkg_by_name(const char *pkg_name)
 660 {
 661         abstract_pkg_t * ab_pkg;
 662
 663         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 664                 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
 665
 666         return ab_pkg;
 667 }
 668
 669 void
 670 hash_insert_pkg(pkg_t *pkg, int set_status)
 671 {
 672         abstract_pkg_t * ab_pkg;
 673
 674         ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
 675         if (!ab_pkg->pkgs)
 676                 ab_pkg->pkgs = pkg_vec_alloc();
 677
 678         if (pkg->state_status == SS_INSTALLED) {
 679                 ab_pkg->state_status = SS_INSTALLED;
 680         } else if (pkg->state_status == SS_UNPACKED) {
 681                 ab_pkg->state_status = SS_UNPACKED;
 682         }
 683
 684         buildDepends(pkg);
 685
 686         buildProvides(ab_pkg, pkg);
 687
 688         /* Need to build the conflicts graph before replaces for correct
 689          * calculation of replaced_by relation.
 690          */
 691         buildConflicts(pkg);
 692
 693         buildReplaces(ab_pkg, pkg);
 694
 695         buildDependedUponBy(pkg, ab_pkg);
 696
 697         pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
 698         pkg->parent = ab_pkg;
 699 }
 700
 701 static const char *
 702 strip_offline_root(const char *file_name)
 703 {
 704         unsigned int len;
 705
 706         if (conf->offline_root) {
 707                 len = strlen(conf->offline_root);
 708                 if (strncmp(file_name, conf->offline_root, len) == 0)
 709                         file_name += len;
 710         }
 711
 712         return file_name;
 713 }
 714
 715 void
 716 file_hash_remove(const char *file_name)
 717 {
 718         file_name = strip_offline_root(file_name);
 719         hash_table_remove(&conf->file_hash, file_name);
 720 }
 721
 722 pkg_t *
 723 file_hash_get_file_owner(const char *file_name)
 724 {
 725         file_name = strip_offline_root(file_name);
 726         return hash_table_get(&conf->file_hash, file_name);
 727 }
 728
 729 void
 730 file_hash_set_file_owner(const char *file_name, pkg_t *owning_pkg)
 731 {
 732         pkg_t *old_owning_pkg;
 733         int file_name_len = strlen(file_name);
 734
 735         if (file_name[file_name_len -1] == '/')
 736                 return;
 737
 738         file_name = strip_offline_root(file_name);
 739
 740         old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
 741         hash_table_insert(&conf->file_hash, file_name, owning_pkg);
 742
 743         if (old_owning_pkg) {
 744                 pkg_get_installed_files(old_owning_pkg);
 745                 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 746                 pkg_free_installed_files(old_owning_pkg);
 747
 748                 /* mark this package to have its filelist written */
 749                 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 750                 owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 751         }
 752 }