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 "pkg.h"
  22 #include "opkg_message.h"
  23 #include "pkg_vec.h"
  24 #include "pkg_hash.h"
  25 #include "parse_util.h"
  26 #include "pkg_parse.h"
  27 #include "opkg_utils.h"
  28 #include "sprintf_alloc.h"
  29 #include "file_util.h"
  30 #include "libbb/libbb.h"
  31 #include "libbb/gzip.h"
  32
  33 void pkg_hash_init(void)
  34 {
  35         hash_table_init("pkg-hash", &conf->pkg_hash,
  36                         OPKG_CONF_DEFAULT_HASH_LEN);
  37 }
  38
  39 static void free_pkgs(const char *key, void *entry, void *data)
  40 {
  41         int i;
  42         abstract_pkg_t *ab_pkg;
  43
  44         /* Each entry in the hash table is an abstract package, which contains
  45          * a list of packages that provide the abstract package.
  46          */
  47
  48         ab_pkg = (abstract_pkg_t *) entry;
  49
  50         if (ab_pkg->pkgs) {
  51                 for (i = 0; i < ab_pkg->pkgs->len; i++) {
  52                         pkg_deinit(ab_pkg->pkgs->pkgs[i]);
  53                         free(ab_pkg->pkgs->pkgs[i]);
  54                 }
  55         }
  56
  57         abstract_pkg_vec_free(ab_pkg->provided_by);
  58         abstract_pkg_vec_free(ab_pkg->replaced_by);
  59         pkg_vec_free(ab_pkg->pkgs);
  60         free(ab_pkg->depended_upon_by);
  61         free(ab_pkg->name);
  62         free(ab_pkg);
  63 }
  64
  65 void pkg_hash_deinit(void)
  66 {
  67         hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
  68         hash_table_deinit(&conf->pkg_hash);
  69 }
  70
  71 int dist_hash_add_from_file(const char *lists_dir, pkg_src_t * dist)
  72 {
  73         nv_pair_list_elt_t *l;
  74         char *list_file, *subname;
  75
  76         list_for_each_entry(l, &conf->arch_list.head, node) {
  77                 nv_pair_t *nv = (nv_pair_t *) l->data;
  78                 sprintf_alloc(&subname, "%s-%s", dist->name, nv->name);
  79                 sprintf_alloc(&list_file, "%s/%s", lists_dir, subname);
  80
  81                 if (file_exists(list_file)) {
  82                         if (pkg_hash_add_from_file(list_file, dist, NULL, 0, 0)) {
  83                                 free(list_file);
  84                                 return -1;
  85                         }
  86                         pkg_src_list_append(&conf->pkg_src_list, subname,
  87                                             dist->value, "__dummy__", 0);
  88                 }
  89
  90                 free(list_file);
  91         }
  92
  93         return 0;
  94 }
  95
  96 int
  97 pkg_hash_add_from_file(const char *file_name,
  98                        pkg_src_t * src, pkg_dest_t * dest, int is_status_file, int state_flags)
  99 {
 100         pkg_t *pkg;
 101         FILE *fp;
 102         char *buf;
 103         const size_t len = 4096;
 104         int ret = 0;
 105         struct gzip_handle zh;
 106
 107         if (src && src->gzip) {
 108                 fp = gzip_fdopen(&zh, file_name);
 109         } else {
 110                 fp = fopen(file_name, "r");
 111         }
 112
 113         if (fp == NULL) {
 114                 opkg_perror(ERROR, "Failed to open %s", file_name);
 115                 return -1;
 116         }
 117
 118         buf = xmalloc(len);
 119
 120         do {
 121                 pkg = pkg_new();
 122                 pkg->src = src;
 123                 pkg->dest = dest;
 124                 pkg->state_flag |= state_flags;
 125
 126                 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
 127                                                  &buf, len);
 128
 129                 if (pkg->name == NULL) {
 130                         /* probably just a blank line */
 131                         ret = 1;
 132                 }
 133
 134                 if (ret) {
 135                         pkg_deinit(pkg);
 136                         free(pkg);
 137                         if (ret == -1)
 138                                 break;
 139                         if (ret == 1)
 140                                 /* Probably a blank line, continue parsing. */
 141                                 ret = 0;
 142                         continue;
 143                 }
 144
 145                 if (!pkg_get_architecture(pkg) || !pkg_get_arch_priority(pkg)) {
 146                         char *version_str = pkg_version_str_alloc(pkg);
 147                         opkg_msg(NOTICE, "Package %s version %s has no "
 148                                  "valid architecture, ignoring.\n",
 149                                  pkg->name, version_str);
 150                         free(version_str);
 151                         continue;
 152                 }
 153
 154                 hash_insert_pkg(pkg, is_status_file);
 155
 156         } while (!feof(fp));
 157
 158         free(buf);
 159         fclose(fp);
 160
 161         if (src && src->gzip)
 162                 gzip_close(&zh);
 163
 164         return ret;
 165 }
 166
 167 /*
 168  * Load in feed files from the cached "src" and/or "src/gz" locations.
 169  */
 170 int pkg_hash_load_feeds(int state_flags)
 171 {
 172         pkg_src_list_elt_t *iter;
 173         pkg_src_t *src, *subdist;
 174         char *list_file, *lists_dir;
 175
 176         opkg_msg(INFO, "\n");
 177
 178         lists_dir = conf->restrict_to_default_dest ?
 179             conf->default_dest->lists_dir : conf->lists_dir;
 180
 181         for (iter = void_list_first(&conf->pkg_src_list); iter;
 182              iter = void_list_next(&conf->pkg_src_list, iter)) {
 183
 184                 src = (pkg_src_t *) iter->data;
 185
 186                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 187
 188                 if (file_exists(list_file)) {
 189                         if (pkg_hash_add_from_file(list_file, src, NULL, 0, state_flags)) {
 190                                 free(list_file);
 191                                 return -1;
 192                         }
 193                 }
 194                 free(list_file);
 195         }
 196
 197         return 0;
 198 }
 199
 200 /*
 201  * Load in status files from the configured "dest"s.
 202  */
 203 int pkg_hash_load_status_files(void)
 204 {
 205         pkg_dest_list_elt_t *iter;
 206         pkg_dest_t *dest;
 207
 208         opkg_msg(INFO, "\n");
 209
 210         for (iter = void_list_first(&conf->pkg_dest_list); iter;
 211              iter = void_list_next(&conf->pkg_dest_list, iter)) {
 212
 213                 dest = (pkg_dest_t *) iter->data;
 214
 215                 if (file_exists(dest->status_file_name)) {
 216                         if (pkg_hash_add_from_file
 217                             (dest->status_file_name, NULL, dest, 1, SF_NEED_DETAIL))
 218                                 return -1;
 219                 }
 220         }
 221
 222         return 0;
 223 }
 224
 225 static void
 226 pkg_hash_load_package_details_helper(const char *pkg_name, void *entry, void *data)
 227 {
 228         int *count = data;
 229         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 230
 231         if (ab_pkg->state_flag & SF_NEED_DETAIL) {
 232                 if (ab_pkg->state_flag & SF_MARKED) {
 233                         opkg_msg(DEBUG, "skipping already seen flagged abpkg %s\n",
 234                                  ab_pkg->name);
 235                         return;
 236                 }
 237
 238                 opkg_msg(DEBUG, "found yet incomplete flagged abpkg %s\n",
 239                          ab_pkg->name);
 240
 241                 (*count)++;
 242                 ab_pkg->state_flag |= SF_MARKED;
 243         }
 244 }
 245
 246 int pkg_hash_load_package_details(void)
 247 {
 248         int n_need_detail;
 249
 250         while (1) {
 251                 pkg_hash_load_feeds(0);
 252
 253                 n_need_detail = 0;
 254                 hash_table_foreach(&conf->pkg_hash, pkg_hash_load_package_details_helper, &n_need_detail);
 255
 256                 if (n_need_detail > 0)
 257                         opkg_msg(DEBUG, "Found %d packages requiring details, reloading feeds\n", n_need_detail);
 258                 else
 259                         break;
 260         }
 261
 262         return 0;
 263 }
 264
 265 pkg_t *pkg_hash_fetch_best_installation_candidate(abstract_pkg_t * apkg,
 266                                                   int (*constraint_fcn) (pkg_t *
 267                                                                          pkg,
 268                                                                          void
 269                                                                          *cdata),
 270                                                   void *cdata, int quiet)
 271 {
 272         int i, j;
 273         int nprovides = 0;
 274         int nmatching = 0;
 275         int wrong_arch_found = 0;
 276         int arch_priority;
 277         pkg_vec_t *matching_pkgs;
 278         abstract_pkg_vec_t *matching_apkgs;
 279         abstract_pkg_vec_t *provided_apkg_vec;
 280         abstract_pkg_t **provided_apkgs;
 281         abstract_pkg_vec_t *providers;
 282         pkg_t *latest_installed_parent = NULL;
 283         pkg_t *latest_matching = NULL;
 284         pkg_t *priorized_matching = NULL;
 285         pkg_t *held_pkg = NULL;
 286         pkg_t *good_pkg_by_name = NULL;
 287
 288         if (apkg == NULL || apkg->provided_by == NULL
 289             || (apkg->provided_by->len == 0))
 290                 return NULL;
 291
 292         matching_pkgs = pkg_vec_alloc();
 293         matching_apkgs = abstract_pkg_vec_alloc();
 294         providers = abstract_pkg_vec_alloc();
 295
 296         opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
 297
 298         provided_apkg_vec = apkg->provided_by;
 299         nprovides = provided_apkg_vec->len;
 300         provided_apkgs = provided_apkg_vec->pkgs;
 301         if (nprovides > 1)
 302                 opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name,
 303                          nprovides);
 304
 305         /* accumulate all the providers */
 306         for (i = 0; i < nprovides; i++) {
 307                 abstract_pkg_t *provider_apkg = provided_apkgs[i];
 308                 opkg_msg(DEBUG, "Adding %s to providers.\n",
 309                          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 =
 316                     abstract_pkg_vec_get(providers, i);
 317                 abstract_pkg_t *replacement_apkg = NULL;
 318                 pkg_vec_t *vec;
 319
 320                 if (provider_apkg->replaced_by
 321                     && provider_apkg->replaced_by->len) {
 322                         replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 323                         if (provider_apkg->replaced_by->len > 1) {
 324                                 opkg_msg(NOTICE, "Multiple replacers for %s, "
 325                                          "using first one (%s).\n",
 326                                          provider_apkg->name,
 327                                          replacement_apkg->name);
 328                         }
 329                 }
 330
 331                 if (replacement_apkg)
 332                         opkg_msg(DEBUG,
 333                                  "replacement_apkg=%s for provider_apkg=%s.\n",
 334                                  replacement_apkg->name, provider_apkg->name);
 335
 336                 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 337                         if (abstract_pkg_vec_contains
 338                             (providers, replacement_apkg))
 339                                 continue;
 340                         else
 341                                 provider_apkg = replacement_apkg;
 342                 }
 343
 344                 if (!(vec = provider_apkg->pkgs)) {
 345                         opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
 346                                  provider_apkg->name);
 347                         continue;
 348                 }
 349
 350                 /* now check for supported architecture */
 351                 {
 352                         int max_count = 0;
 353
 354                         /* count packages matching max arch priority and keep track of last one */
 355                         for (j = 0; j < vec->len; j++) {
 356                                 pkg_t *maybe = vec->pkgs[j];
 357                                 arch_priority = pkg_get_arch_priority(maybe);
 358
 359                                 opkg_msg(DEBUG,
 360                                          "%s arch=%s arch_priority=%d version=%s.\n",
 361                                          maybe->name, pkg_get_architecture(maybe),
 362                                          arch_priority, pkg_get_string(maybe, PKG_VERSION));
 363                                 /* We make sure not to add the same package twice. Need to search for the reason why
 364                                    they show up twice sometimes. */
 365                                 if ((arch_priority > 0)
 366                                     &&
 367                                     (!pkg_vec_contains(matching_pkgs, maybe))) {
 368                                         max_count++;
 369                                         abstract_pkg_vec_insert(matching_apkgs,
 370                                                                 maybe->parent);
 371                                         pkg_vec_insert(matching_pkgs, maybe);
 372                                 }
 373                         }
 374
 375                         if (vec->len > 0 && matching_pkgs->len < 1)
 376                                 wrong_arch_found = 1;
 377                 }
 378         }
 379
 380         if (matching_pkgs->len < 1) {
 381                 if (wrong_arch_found)
 382                         opkg_msg(ERROR, "Packages for %s found, but"
 383                                  " incompatible with the architectures configured\n",
 384                                  apkg->name);
 385                 pkg_vec_free(matching_pkgs);
 386                 abstract_pkg_vec_free(matching_apkgs);
 387                 abstract_pkg_vec_free(providers);
 388                 return NULL;
 389         }
 390
 391         if (matching_pkgs->len > 1)
 392                 pkg_vec_sort(matching_pkgs,
 393                              pkg_name_version_and_architecture_compare);
 394         if (matching_apkgs->len > 1)
 395                 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 396
 397         for (i = 0; i < matching_pkgs->len; i++) {
 398                 pkg_t *matching = matching_pkgs->pkgs[i];
 399                 if (constraint_fcn(matching, cdata)) {
 400                         opkg_msg(DEBUG, "Candidate: %s %s.\n",
 401                                  matching->name, pkg_get_string(matching, PKG_VERSION));
 402                         good_pkg_by_name = matching;
 403                         /* It has been provided by hand, so it is what user want */
 404                         if (matching->provided_by_hand == 1)
 405                                 break;
 406                 }
 407         }
 408
 409         for (i = 0; i < matching_pkgs->len; i++) {
 410                 pkg_t *matching = matching_pkgs->pkgs[i];
 411                 latest_matching = matching;
 412                 if (matching->parent->state_status == SS_INSTALLED
 413                     || matching->parent->state_status == SS_UNPACKED)
 414                         latest_installed_parent = matching;
 415                 if (matching->state_flag & (SF_HOLD | SF_PREFER)) {
 416                         if (held_pkg)
 417                                 opkg_msg(NOTICE,
 418                                          "Multiple packages (%s and %s) providing"
 419                                          " same name marked HOLD or PREFER. "
 420                                          "Using latest.\n", held_pkg->name,
 421                                          matching->name);
 422                         held_pkg = matching;
 423                 }
 424         }
 425
 426         if (!good_pkg_by_name && !held_pkg && !latest_installed_parent
 427             && matching_apkgs->len > 1 && !quiet) {
 428                 int prio = 0;
 429                 for (i = 0; i < matching_pkgs->len; i++) {
 430                         pkg_t *matching = matching_pkgs->pkgs[i];
 431                         arch_priority = pkg_get_arch_priority(matching);
 432                         if (arch_priority > prio) {
 433                                 priorized_matching = matching;
 434                                 prio = arch_priority;
 435                                 opkg_msg(DEBUG, "Match %s with priority %i.\n",
 436                                          matching->name, prio);
 437                         }
 438                 }
 439
 440         }
 441
 442         if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
 443                 opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
 444                          matching_pkgs->len, apkg->name);
 445                 for (i = 0; i < matching_pkgs->len; i++) {
 446                         pkg_t *matching = matching_pkgs->pkgs[i];
 447                         opkg_msg(INFO, "%s %s %s\n",
 448                                  matching->name, pkg_get_string(matching, PKG_VERSION),
 449                                  pkg_get_architecture(matching));
 450                 }
 451         }
 452
 453         nmatching = matching_apkgs->len;
 454
 455         pkg_vec_free(matching_pkgs);
 456         abstract_pkg_vec_free(matching_apkgs);
 457         abstract_pkg_vec_free(providers);
 458
 459         if (good_pkg_by_name) { /* We found a good candidate, we will install it */
 460                 return good_pkg_by_name;
 461         }
 462         if (held_pkg) {
 463                 opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
 464                 return held_pkg;
 465         }
 466         if (latest_installed_parent) {
 467                 opkg_msg(INFO,
 468                          "Using latest version of installed package %s.\n",
 469                          latest_installed_parent->name);
 470                 return latest_installed_parent;
 471         }
 472         if (priorized_matching) {
 473                 opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
 474                          priorized_matching->name, pkg_get_string(priorized_matching, PKG_VERSION),
 475                          pkg_get_architecture(priorized_matching));
 476                 return priorized_matching;
 477         }
 478         if (nmatching > 1) {
 479                 opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
 480                          nmatching);
 481                 return NULL;
 482         }
 483         if (latest_matching) {
 484                 opkg_msg(INFO, "Using latest matching %s %s %s.\n",
 485                          latest_matching->name, pkg_get_string(latest_matching, PKG_VERSION),
 486                          pkg_get_architecture(latest_matching));
 487                 return latest_matching;
 488         }
 489         return NULL;
 490 }
 491
 492 static int pkg_name_constraint_fcn(pkg_t * pkg, void *cdata)
 493 {
 494         const char *name = (const char *)cdata;
 495
 496         if (strcmp(pkg->name, name) == 0)
 497                 return 1;
 498         else
 499                 return 0;
 500 }
 501
 502 static pkg_vec_t *pkg_vec_fetch_by_name(const char *pkg_name)
 503 {
 504         abstract_pkg_t *ab_pkg;
 505
 506         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 507                 return NULL;
 508
 509         if (ab_pkg->pkgs)
 510                 return ab_pkg->pkgs;
 511
 512         if (ab_pkg->provided_by) {
 513                 abstract_pkg_t *abpkg =
 514                     abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 515                 if (abpkg != NULL)
 516                         return abpkg->pkgs;
 517                 else
 518                         return ab_pkg->pkgs;
 519         }
 520
 521         return NULL;
 522 }
 523
 524 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
 525 {
 526         abstract_pkg_t *apkg = NULL;
 527
 528         if (!(apkg = abstract_pkg_fetch_by_name(name)))
 529                 return NULL;
 530
 531         return pkg_hash_fetch_best_installation_candidate(apkg,
 532                                                           pkg_name_constraint_fcn,
 533                                                           apkg->name, 0);
 534 }
 535
 536 pkg_t *pkg_hash_fetch_by_name_version(const char *pkg_name, const char *version)
 537 {
 538         pkg_vec_t *vec;
 539         int i;
 540         char *version_str = NULL;
 541
 542         if (!(vec = pkg_vec_fetch_by_name(pkg_name)))
 543                 return NULL;
 544
 545         for (i = 0; i < vec->len; i++) {
 546                 version_str = pkg_version_str_alloc(vec->pkgs[i]);
 547                 if (!strcmp(version_str, version)) {
 548                         free(version_str);
 549                         break;
 550                 }
 551                 free(version_str);
 552         }
 553
 554         if (i == vec->len)
 555                 return NULL;
 556
 557         return vec->pkgs[i];
 558 }
 559
 560 pkg_t *pkg_hash_fetch_installed_by_name_dest(const char *pkg_name,
 561                                              pkg_dest_t * dest)
 562 {
 563         pkg_vec_t *vec;
 564         int i;
 565
 566         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 567                 return NULL;
 568         }
 569
 570         for (i = 0; i < vec->len; i++)
 571                 if ((vec->pkgs[i]->state_status == SS_INSTALLED
 572                      || vec->pkgs[i]->state_status == SS_UNPACKED)
 573                     && vec->pkgs[i]->dest == dest) {
 574                         return vec->pkgs[i];
 575                 }
 576
 577         return NULL;
 578 }
 579
 580 pkg_t *pkg_hash_fetch_installed_by_name(const char *pkg_name)
 581 {
 582         pkg_vec_t *vec;
 583         int i;
 584
 585         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 586                 return NULL;
 587         }
 588
 589         for (i = 0; i < vec->len; i++) {
 590                 if (vec->pkgs[i]->state_status == SS_INSTALLED
 591                     || vec->pkgs[i]->state_status == SS_UNPACKED) {
 592                         return vec->pkgs[i];
 593                 }
 594         }
 595
 596         return NULL;
 597 }
 598
 599 static void
 600 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 601 {
 602         int j;
 603         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 604         pkg_vec_t *all = (pkg_vec_t *) data;
 605         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 606
 607         if (!pkg_vec)
 608                 return;
 609
 610         for (j = 0; j < pkg_vec->len; j++) {
 611                 pkg_t *pkg = pkg_vec->pkgs[j];
 612                 pkg_vec_insert(all, pkg);
 613         }
 614 }
 615
 616 void pkg_hash_fetch_available(pkg_vec_t * all)
 617 {
 618         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
 619                            all);
 620 }
 621
 622 static void
 623 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry,
 624                                     void *data)
 625 {
 626         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 627         pkg_vec_t *all = (pkg_vec_t *) data;
 628         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 629         int j;
 630
 631         if (!pkg_vec)
 632                 return;
 633
 634         for (j = 0; j < pkg_vec->len; j++) {
 635                 pkg_t *pkg = pkg_vec->pkgs[j];
 636                 if (pkg->state_status == SS_INSTALLED
 637                     || pkg->state_status == SS_UNPACKED)
 638                         pkg_vec_insert(all, pkg);
 639         }
 640 }
 641
 642 void pkg_hash_fetch_all_installed(pkg_vec_t * all)
 643 {
 644         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
 645                            all);
 646 }
 647
 648 /*
 649  * This assumes that the abstract pkg doesn't exist.
 650  */
 651 static abstract_pkg_t *add_new_abstract_pkg_by_name(const char *pkg_name)
 652 {
 653         abstract_pkg_t *ab_pkg;
 654
 655         ab_pkg = abstract_pkg_new();
 656
 657         ab_pkg->name = xstrdup(pkg_name);
 658         hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
 659
 660         return ab_pkg;
 661 }
 662
 663 abstract_pkg_t *ensure_abstract_pkg_by_name(const char *pkg_name)
 664 {
 665         abstract_pkg_t *ab_pkg;
 666
 667         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 668                 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
 669
 670         return ab_pkg;
 671 }
 672
 673 void hash_insert_pkg(pkg_t * pkg, int set_status)
 674 {
 675         abstract_pkg_t *ab_pkg;
 676
 677         ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
 678         if (!ab_pkg->pkgs)
 679                 ab_pkg->pkgs = pkg_vec_alloc();
 680
 681         if (pkg->state_status == SS_INSTALLED) {
 682                 ab_pkg->state_status = SS_INSTALLED;
 683         } else if (pkg->state_status == SS_UNPACKED) {
 684                 ab_pkg->state_status = SS_UNPACKED;
 685         }
 686
 687         buildDepends(pkg);
 688
 689         buildProvides(ab_pkg, pkg);
 690
 691         init_providelist(pkg, NULL);
 692
 693         /* Need to build the conflicts graph before replaces for correct
 694          * calculation of replaced_by relation.
 695          */
 696         buildConflicts(pkg);
 697
 698         buildReplaces(ab_pkg, pkg);
 699
 700         buildDependedUponBy(pkg, ab_pkg);
 701
 702         pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
 703         pkg->parent = ab_pkg;
 704 }
 705
 706 static const char *strip_offline_root(const char *file_name)
 707 {
 708         unsigned int len;
 709
 710         if (conf->offline_root) {
 711                 len = strlen(conf->offline_root);
 712                 if (strncmp(file_name, conf->offline_root, len) == 0)
 713                         file_name += len;
 714         }
 715
 716         return file_name;
 717 }
 718
 719 void file_hash_remove(const char *file_name)
 720 {
 721         file_name = strip_offline_root(file_name);
 722         hash_table_remove(&conf->file_hash, file_name);
 723 }
 724
 725 pkg_t *file_hash_get_file_owner(const char *file_name)
 726 {
 727         file_name = strip_offline_root(file_name);
 728         return hash_table_get(&conf->file_hash, file_name);
 729 }
 730
 731 void file_hash_set_file_owner(const char *file_name, pkg_t * owning_pkg)
 732 {
 733         pkg_t *old_owning_pkg;
 734         int file_name_len = strlen(file_name);
 735
 736         if (file_name[file_name_len - 1] == '/')
 737                 return;
 738
 739         file_name = strip_offline_root(file_name);
 740
 741         old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
 742         hash_table_insert(&conf->file_hash, file_name, owning_pkg);
 743
 744         if (old_owning_pkg) {
 745                 pkg_get_installed_files(old_owning_pkg);
 746                 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 747                 pkg_free_installed_files(old_owning_pkg);
 748
 749                 /* mark this package to have its filelist written */
 750                 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 751                 owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 752         }
 753 }