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_depends.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 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 free_pkgs(const char *key, void *entry, void *data)
  41 {
  42         int i;
  43         abstract_pkg_t *ab_pkg;
  44
  45         /* Each entry in the hash table is an abstract package, which contains
  46          * a list of packages that provide the abstract package.
  47          */
  48
  49         ab_pkg = (abstract_pkg_t *) entry;
  50
  51         if (ab_pkg->pkgs) {
  52                 for (i = 0; i < ab_pkg->pkgs->len; i++) {
  53                         pkg_deinit(ab_pkg->pkgs->pkgs[i]);
  54                         free(ab_pkg->pkgs->pkgs[i]);
  55                 }
  56         }
  57
  58         abstract_pkg_vec_free(ab_pkg->provided_by);
  59         abstract_pkg_vec_free(ab_pkg->replaced_by);
  60         pkg_vec_free(ab_pkg->pkgs);
  61         free(ab_pkg->depended_upon_by);
  62         free(ab_pkg->name);
  63         free(ab_pkg);
  64 }
  65
  66 void pkg_hash_deinit(void)
  67 {
  68         hash_table_foreach(&conf->pkg_hash, free_pkgs, NULL);
  69         hash_table_deinit(&conf->pkg_hash);
  70 }
  71
  72 int
  73 pkg_hash_add_from_file(const char *file_name,
  74                        pkg_src_t * src, pkg_dest_t * dest, int is_status_file, int state_flags,
  75                        void (*cb)(pkg_t *, void *), void *priv)
  76 {
  77         pkg_t *pkg;
  78         FILE *fp;
  79         char *buf;
  80         const size_t len = 4096;
  81         int ret = 0;
  82         struct gzip_handle zh;
  83
  84         if (src && src->gzip) {
  85                 fp = gzip_fdopen(&zh, file_name);
  86         } else {
  87                 fp = fopen(file_name, "r");
  88         }
  89
  90         if (fp == NULL) {
  91                 opkg_perror(ERROR, "Failed to open %s", file_name);
  92                 return -1;
  93         }
  94
  95         buf = xmalloc(len);
  96
  97         do {
  98                 pkg = pkg_new();
  99                 pkg->src = src;
 100                 pkg->dest = dest;
 101                 pkg->state_flag |= state_flags;
 102
 103                 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
 104                                                  &buf, len);
 105
 106                 if (pkg->name == NULL) {
 107                         /* probably just a blank line */
 108                         ret = 1;
 109                 }
 110
 111                 if (ret) {
 112                         pkg_deinit(pkg);
 113                         free(pkg);
 114                         if (ret == -1)
 115                                 break;
 116                         if (ret == 1)
 117                                 /* Probably a blank line, continue parsing. */
 118                                 ret = 0;
 119                         continue;
 120                 }
 121
 122                 if (!(pkg->state_flag & SF_NEED_DETAIL)) {
 123                         //opkg_msg(DEBUG, "Package %s is unrelated, ignoring.\n", pkg->name);
 124                         pkg_deinit(pkg);
 125                         free(pkg);
 126                         continue;
 127                 }
 128
 129                 if (!pkg_get_architecture(pkg) || !pkg_get_arch_priority(pkg)) {
 130                         char *version_str = pkg_version_str_alloc(pkg);
 131                         opkg_msg(NOTICE, "Package %s version %s has no "
 132                                  "valid architecture, ignoring.\n",
 133                                  pkg->name, version_str);
 134                         free(version_str);
 135                         continue;
 136                 }
 137
 138                 if (cb)
 139                         cb(pkg, priv);
 140                 else
 141                         hash_insert_pkg(pkg, is_status_file);
 142
 143         } while (!feof(fp));
 144
 145         free(buf);
 146         fclose(fp);
 147
 148         if (src && src->gzip)
 149                 gzip_close(&zh);
 150
 151         return ret;
 152 }
 153
 154 /*
 155  * Load in feed files from the cached "src" and/or "src/gz" locations.
 156  */
 157 int pkg_hash_load_feeds(int state_flags, void (*cb)(pkg_t *, void *), void *priv)
 158 {
 159         pkg_src_list_elt_t *iter;
 160         pkg_src_t *src;
 161         char *list_file, *lists_dir;
 162
 163         opkg_msg(INFO, "\n");
 164
 165         lists_dir = conf->restrict_to_default_dest ?
 166             conf->default_dest->lists_dir : conf->lists_dir;
 167
 168         for (iter = void_list_first(&conf->pkg_src_list); iter;
 169              iter = void_list_next(&conf->pkg_src_list, iter)) {
 170
 171                 src = (pkg_src_t *) iter->data;
 172
 173                 sprintf_alloc(&list_file, "%s/%s", lists_dir, src->name);
 174
 175                 if (file_exists(list_file)) {
 176                         if (pkg_hash_add_from_file(list_file, src, NULL, 0, state_flags, cb, priv)) {
 177                                 free(list_file);
 178                                 return -1;
 179                         }
 180                 }
 181                 free(list_file);
 182         }
 183
 184         return 0;
 185 }
 186
 187 /*
 188  * Load in status files from the configured "dest"s.
 189  */
 190 int pkg_hash_load_status_files(void (*cb)(pkg_t *, void *), void *priv)
 191 {
 192         pkg_dest_list_elt_t *iter;
 193         pkg_dest_t *dest;
 194
 195         opkg_msg(INFO, "\n");
 196
 197         for (iter = void_list_first(&conf->pkg_dest_list); iter;
 198              iter = void_list_next(&conf->pkg_dest_list, iter)) {
 199
 200                 dest = (pkg_dest_t *) iter->data;
 201
 202                 if (file_exists(dest->status_file_name)) {
 203                         if (pkg_hash_add_from_file
 204                             (dest->status_file_name, NULL, dest, 1, SF_NEED_DETAIL, cb, priv))
 205                                 return -1;
 206                 }
 207         }
 208
 209         return 0;
 210 }
 211
 212 static void
 213 pkg_hash_load_package_details_helper(const char *pkg_name, void *entry, void *data)
 214 {
 215         int *count = data;
 216         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 217
 218         if (ab_pkg->state_flag & SF_NEED_DETAIL) {
 219                 if (ab_pkg->state_flag & SF_MARKED) {
 220                         opkg_msg(DEBUG, "skipping already seen flagged abpkg %s\n",
 221                                  ab_pkg->name);
 222                         return;
 223                 }
 224
 225                 opkg_msg(DEBUG, "found yet incomplete flagged abpkg %s\n",
 226                          ab_pkg->name);
 227
 228                 (*count)++;
 229                 ab_pkg->state_flag |= SF_MARKED;
 230         }
 231 }
 232
 233 int pkg_hash_load_package_details(void)
 234 {
 235         int n_need_detail;
 236
 237         while (1) {
 238                 pkg_hash_load_feeds(0, NULL, NULL);
 239
 240                 n_need_detail = 0;
 241                 hash_table_foreach(&conf->pkg_hash, pkg_hash_load_package_details_helper, &n_need_detail);
 242
 243                 if (n_need_detail > 0)
 244                         opkg_msg(DEBUG, "Found %d packages requiring details, reloading feeds\n", n_need_detail);
 245                 else
 246                         break;
 247         }
 248
 249         return 0;
 250 }
 251
 252 static int
 253 pkg_hash_check_unresolved(pkg_t *maybe)
 254 {
 255         char **unresolved = NULL;
 256         char **tmp;
 257         pkg_vec_t *depends;
 258         int res = 0;
 259
 260         depends = pkg_vec_alloc();
 261         pkg_hash_fetch_unsatisfied_dependencies(maybe, depends, &unresolved, 1);
 262
 263         if (unresolved) {
 264                 res = 1;
 265                 tmp = unresolved;
 266                 while (tmp)
 267                         free(*(tmp++));
 268                 free(unresolved);
 269         }
 270         pkg_vec_free(depends);
 271
 272         return res;
 273 }
 274
 275 pkg_t *pkg_hash_fetch_best_installation_candidate(abstract_pkg_t * apkg,
 276                                                   int (*constraint_fcn) (pkg_t *
 277                                                                          pkg,
 278                                                                          void
 279                                                                          *cdata),
 280                                                   void *cdata, int quiet)
 281 {
 282         int i, j;
 283         int nprovides = 0;
 284         int nmatching = 0;
 285         int wrong_arch_found = 0;
 286         int arch_priority;
 287         pkg_vec_t *matching_pkgs;
 288         abstract_pkg_vec_t *matching_apkgs;
 289         abstract_pkg_vec_t *provided_apkg_vec;
 290         abstract_pkg_t **provided_apkgs;
 291         abstract_pkg_vec_t *providers;
 292         pkg_t *latest_installed_parent = NULL;
 293         pkg_t *latest_matching = NULL;
 294         pkg_t *priorized_matching = NULL;
 295         pkg_t *held_pkg = NULL;
 296         pkg_t *good_pkg_by_name = NULL;
 297
 298         if (apkg == NULL || apkg->provided_by == NULL
 299             || (apkg->provided_by->len == 0))
 300                 return NULL;
 301
 302         matching_pkgs = pkg_vec_alloc();
 303         matching_apkgs = abstract_pkg_vec_alloc();
 304         providers = abstract_pkg_vec_alloc();
 305
 306         opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
 307
 308         provided_apkg_vec = apkg->provided_by;
 309         nprovides = provided_apkg_vec->len;
 310         provided_apkgs = provided_apkg_vec->pkgs;
 311         if (nprovides > 1)
 312                 opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name,
 313                          nprovides);
 314
 315         /* accumulate all the providers */
 316         for (i = 0; i < nprovides; i++) {
 317                 abstract_pkg_t *provider_apkg = provided_apkgs[i];
 318                 opkg_msg(DEBUG, "Adding %s to providers.\n",
 319                          provider_apkg->name);
 320                 abstract_pkg_vec_insert(providers, provider_apkg);
 321         }
 322         nprovides = providers->len;
 323
 324         for (i = 0; i < nprovides; i++) {
 325                 abstract_pkg_t *provider_apkg =
 326                     abstract_pkg_vec_get(providers, i);
 327                 abstract_pkg_t *replacement_apkg = NULL;
 328                 pkg_vec_t *vec;
 329
 330                 if (provider_apkg->replaced_by
 331                     && provider_apkg->replaced_by->len) {
 332                         replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 333                         if (provider_apkg->replaced_by->len > 1) {
 334                                 opkg_msg(NOTICE, "Multiple replacers for %s, "
 335                                          "using first one (%s).\n",
 336                                          provider_apkg->name,
 337                                          replacement_apkg->name);
 338                         }
 339                 }
 340
 341                 if (replacement_apkg)
 342                         opkg_msg(DEBUG,
 343                                  "replacement_apkg=%s for provider_apkg=%s.\n",
 344                                  replacement_apkg->name, provider_apkg->name);
 345
 346                 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 347                         if (abstract_pkg_vec_contains
 348                             (providers, replacement_apkg))
 349                                 continue;
 350                         else
 351                                 provider_apkg = replacement_apkg;
 352                 }
 353
 354                 if (!(vec = provider_apkg->pkgs)) {
 355                         opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
 356                                  provider_apkg->name);
 357                         continue;
 358                 }
 359
 360                 /* now check for supported architecture */
 361                 {
 362                         int max_count = 0;
 363
 364                         /* count packages matching max arch priority and keep track of last one */
 365                         for (j = 0; j < vec->len; j++) {
 366                                 pkg_t *maybe = vec->pkgs[j];
 367                                 arch_priority = pkg_get_arch_priority(maybe);
 368
 369                                 opkg_msg(DEBUG,
 370                                          "%s arch=%s arch_priority=%d version=%s.\n",
 371                                          maybe->name, pkg_get_architecture(maybe),
 372                                          arch_priority, pkg_get_string(maybe, PKG_VERSION));
 373                                 /* We make sure not to add the same package twice. Need to search for the reason why
 374                                    they show up twice sometimes. */
 375                                 if ((arch_priority > 0)
 376                                     &&
 377                                     (!pkg_vec_contains(matching_pkgs, maybe))) {
 378                                         if (!pkg_hash_check_unresolved(maybe)) {
 379                                                 max_count++;
 380                                                 abstract_pkg_vec_insert(matching_apkgs,
 381                                                                         maybe->parent);
 382                                                 pkg_vec_insert(matching_pkgs, maybe);
 383                                         }
 384                                 }
 385                         }
 386
 387                         if (vec->len > 0 && matching_pkgs->len < 1)
 388                                 wrong_arch_found = 1;
 389                 }
 390         }
 391
 392         if (matching_pkgs->len < 1) {
 393                 if (wrong_arch_found)
 394                         opkg_msg(ERROR, "Packages for %s found, but"
 395                                  " incompatible with the architectures configured\n",
 396                                  apkg->name);
 397                 pkg_vec_free(matching_pkgs);
 398                 abstract_pkg_vec_free(matching_apkgs);
 399                 abstract_pkg_vec_free(providers);
 400                 return NULL;
 401         }
 402
 403         if (matching_pkgs->len > 1)
 404                 pkg_vec_sort(matching_pkgs,
 405                              pkg_name_version_and_architecture_compare);
 406         if (matching_apkgs->len > 1)
 407                 abstract_pkg_vec_sort(matching_apkgs, abstract_pkg_name_compare);
 408
 409         for (i = 0; i < matching_pkgs->len; i++) {
 410                 pkg_t *matching = matching_pkgs->pkgs[i];
 411                 if (constraint_fcn(matching, cdata)) {
 412                         opkg_msg(DEBUG, "Candidate: %s %s.\n",
 413                                  matching->name, pkg_get_string(matching, PKG_VERSION));
 414                         good_pkg_by_name = matching;
 415                         /* It has been provided by hand, so it is what user want */
 416                         if (matching->provided_by_hand == 1)
 417                                 break;
 418                 }
 419         }
 420
 421         for (i = 0; i < matching_pkgs->len; i++) {
 422                 pkg_t *matching = matching_pkgs->pkgs[i];
 423                 latest_matching = matching;
 424                 if (matching->parent->state_status == SS_INSTALLED
 425                     || matching->parent->state_status == SS_UNPACKED)
 426                         latest_installed_parent = matching;
 427                 if (matching->state_flag & (SF_HOLD | SF_PREFER)) {
 428                         if (held_pkg)
 429                                 opkg_msg(NOTICE,
 430                                          "Multiple packages (%s and %s) providing"
 431                                          " same name marked HOLD or PREFER. "
 432                                          "Using latest.\n", held_pkg->name,
 433                                          matching->name);
 434                         held_pkg = matching;
 435                 }
 436         }
 437
 438         if (!good_pkg_by_name && !held_pkg && !latest_installed_parent
 439             && matching_apkgs->len > 1 && !quiet) {
 440                 int prio = 0;
 441                 for (i = 0; i < matching_pkgs->len; i++) {
 442                         pkg_t *matching = matching_pkgs->pkgs[i];
 443                         arch_priority = pkg_get_arch_priority(matching);
 444                         if (arch_priority > prio) {
 445                                 priorized_matching = matching;
 446                                 prio = arch_priority;
 447                                 opkg_msg(DEBUG, "Match %s with priority %i.\n",
 448                                          matching->name, prio);
 449                         }
 450                 }
 451
 452         }
 453
 454         if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
 455                 opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
 456                          matching_pkgs->len, apkg->name);
 457                 for (i = 0; i < matching_pkgs->len; i++) {
 458                         pkg_t *matching = matching_pkgs->pkgs[i];
 459                         opkg_msg(INFO, "%s %s %s\n",
 460                                  matching->name, pkg_get_string(matching, PKG_VERSION),
 461                                  pkg_get_architecture(matching));
 462                 }
 463         }
 464
 465         nmatching = matching_apkgs->len;
 466
 467         pkg_vec_free(matching_pkgs);
 468         abstract_pkg_vec_free(matching_apkgs);
 469         abstract_pkg_vec_free(providers);
 470
 471         if (good_pkg_by_name) { /* We found a good candidate, we will install it */
 472                 return good_pkg_by_name;
 473         }
 474         if (held_pkg) {
 475                 opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
 476                 return held_pkg;
 477         }
 478         if (latest_installed_parent) {
 479                 opkg_msg(INFO,
 480                          "Using latest version of installed package %s.\n",
 481                          latest_installed_parent->name);
 482                 return latest_installed_parent;
 483         }
 484         if (priorized_matching) {
 485                 opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
 486                          priorized_matching->name, pkg_get_string(priorized_matching, PKG_VERSION),
 487                          pkg_get_architecture(priorized_matching));
 488                 return priorized_matching;
 489         }
 490         if (nmatching > 1) {
 491                 opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
 492                          nmatching);
 493                 return NULL;
 494         }
 495         if (latest_matching) {
 496                 opkg_msg(INFO, "Using latest matching %s %s %s.\n",
 497                          latest_matching->name, pkg_get_string(latest_matching, PKG_VERSION),
 498                          pkg_get_architecture(latest_matching));
 499                 return latest_matching;
 500         }
 501         return NULL;
 502 }
 503
 504 static int pkg_name_constraint_fcn(pkg_t * pkg, void *cdata)
 505 {
 506         const char *name = (const char *)cdata;
 507
 508         if (strcmp(pkg->name, name) == 0)
 509                 return 1;
 510         else
 511                 return 0;
 512 }
 513
 514 static pkg_vec_t *pkg_vec_fetch_by_name(const char *pkg_name)
 515 {
 516         abstract_pkg_t *ab_pkg;
 517
 518         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 519                 return NULL;
 520
 521         if (ab_pkg->pkgs)
 522                 return ab_pkg->pkgs;
 523
 524         if (ab_pkg->provided_by) {
 525                 abstract_pkg_t *abpkg =
 526                     abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 527                 if (abpkg != NULL)
 528                         return abpkg->pkgs;
 529                 else
 530                         return ab_pkg->pkgs;
 531         }
 532
 533         return NULL;
 534 }
 535
 536 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
 537 {
 538         abstract_pkg_t *apkg = NULL;
 539
 540         if (!(apkg = abstract_pkg_fetch_by_name(name)))
 541                 return NULL;
 542
 543         return pkg_hash_fetch_best_installation_candidate(apkg,
 544                                                           pkg_name_constraint_fcn,
 545                                                           apkg->name, 0);
 546 }
 547
 548 pkg_t *pkg_hash_fetch_by_name_version(const char *pkg_name, const char *version)
 549 {
 550         pkg_vec_t *vec;
 551         int i;
 552         char *version_str = NULL;
 553
 554         if (!(vec = pkg_vec_fetch_by_name(pkg_name)))
 555                 return NULL;
 556
 557         for (i = 0; i < vec->len; i++) {
 558                 version_str = pkg_version_str_alloc(vec->pkgs[i]);
 559                 if (!strcmp(version_str, version)) {
 560                         free(version_str);
 561                         break;
 562                 }
 563                 free(version_str);
 564         }
 565
 566         if (i == vec->len)
 567                 return NULL;
 568
 569         return vec->pkgs[i];
 570 }
 571
 572 pkg_t *pkg_hash_fetch_installed_by_name_dest(const char *pkg_name,
 573                                              pkg_dest_t * dest)
 574 {
 575         pkg_vec_t *vec;
 576         int i;
 577
 578         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 579                 return NULL;
 580         }
 581
 582         for (i = 0; i < vec->len; i++)
 583                 if ((vec->pkgs[i]->state_status == SS_INSTALLED
 584                      || vec->pkgs[i]->state_status == SS_UNPACKED)
 585                     && vec->pkgs[i]->dest == dest) {
 586                         return vec->pkgs[i];
 587                 }
 588
 589         return NULL;
 590 }
 591
 592 pkg_t *pkg_hash_fetch_installed_by_name(const char *pkg_name)
 593 {
 594         pkg_vec_t *vec;
 595         int i;
 596
 597         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 598                 return NULL;
 599         }
 600
 601         for (i = 0; i < vec->len; i++) {
 602                 if (vec->pkgs[i]->state_status == SS_INSTALLED
 603                     || vec->pkgs[i]->state_status == SS_UNPACKED) {
 604                         return vec->pkgs[i];
 605                 }
 606         }
 607
 608         return NULL;
 609 }
 610
 611 static void
 612 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 613 {
 614         int j;
 615         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 616         pkg_vec_t *all = (pkg_vec_t *) data;
 617         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 618
 619         if (!pkg_vec)
 620                 return;
 621
 622         for (j = 0; j < pkg_vec->len; j++) {
 623                 pkg_t *pkg = pkg_vec->pkgs[j];
 624                 pkg_vec_insert(all, pkg);
 625         }
 626 }
 627
 628 void pkg_hash_fetch_available(pkg_vec_t * all)
 629 {
 630         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
 631                            all);
 632 }
 633
 634 static void
 635 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry,
 636                                     void *data)
 637 {
 638         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 639         pkg_vec_t *all = (pkg_vec_t *) data;
 640         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 641         int j;
 642
 643         if (!pkg_vec)
 644                 return;
 645
 646         for (j = 0; j < pkg_vec->len; j++) {
 647                 pkg_t *pkg = pkg_vec->pkgs[j];
 648                 if (pkg->state_status == SS_INSTALLED
 649                     || pkg->state_status == SS_UNPACKED)
 650                         pkg_vec_insert(all, pkg);
 651         }
 652 }
 653
 654 void pkg_hash_fetch_all_installed(pkg_vec_t * all)
 655 {
 656         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
 657                            all);
 658 }
 659
 660 /*
 661  * This assumes that the abstract pkg doesn't exist.
 662  */
 663 static abstract_pkg_t *add_new_abstract_pkg_by_name(const char *pkg_name)
 664 {
 665         abstract_pkg_t *ab_pkg;
 666
 667         ab_pkg = abstract_pkg_new();
 668
 669         ab_pkg->name = xstrdup(pkg_name);
 670         hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
 671
 672         return ab_pkg;
 673 }
 674
 675 abstract_pkg_t *ensure_abstract_pkg_by_name(const char *pkg_name)
 676 {
 677         abstract_pkg_t *ab_pkg;
 678
 679         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 680                 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
 681
 682         return ab_pkg;
 683 }
 684
 685 void hash_insert_pkg(pkg_t * pkg, int set_status)
 686 {
 687         abstract_pkg_t *ab_pkg;
 688
 689         ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
 690         if (!ab_pkg->pkgs)
 691                 ab_pkg->pkgs = pkg_vec_alloc();
 692
 693         if (pkg->state_status == SS_INSTALLED) {
 694                 ab_pkg->state_status = SS_INSTALLED;
 695         } else if (pkg->state_status == SS_UNPACKED) {
 696                 ab_pkg->state_status = SS_UNPACKED;
 697         }
 698
 699         buildDepends(pkg);
 700
 701         buildProvides(ab_pkg, pkg);
 702
 703         init_providelist(pkg, NULL);
 704
 705         /* Need to build the conflicts graph before replaces for correct
 706          * calculation of replaced_by relation.
 707          */
 708         buildConflicts(pkg);
 709
 710         buildReplaces(ab_pkg, pkg);
 711
 712         buildDependedUponBy(pkg, ab_pkg);
 713
 714         pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
 715         pkg->parent = ab_pkg;
 716 }
 717
 718 static const char *strip_offline_root(const char *file_name)
 719 {
 720         unsigned int len;
 721
 722         if (conf->offline_root) {
 723                 len = strlen(conf->offline_root);
 724                 if (strncmp(file_name, conf->offline_root, len) == 0)
 725                         file_name += len;
 726         }
 727
 728         return file_name;
 729 }
 730
 731 void file_hash_remove(const char *file_name)
 732 {
 733         file_name = strip_offline_root(file_name);
 734         hash_table_remove(&conf->file_hash, file_name);
 735 }
 736
 737 pkg_t *file_hash_get_file_owner(const char *file_name)
 738 {
 739         file_name = strip_offline_root(file_name);
 740         return hash_table_get(&conf->file_hash, file_name);
 741 }
 742
 743 void file_hash_set_file_owner(const char *file_name, pkg_t * owning_pkg)
 744 {
 745         pkg_t *old_owning_pkg;
 746         int file_name_len = strlen(file_name);
 747
 748         if (file_name[file_name_len - 1] == '/')
 749                 return;
 750
 751         file_name = strip_offline_root(file_name);
 752
 753         old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
 754         hash_table_insert(&conf->file_hash, file_name, owning_pkg);
 755
 756         if (old_owning_pkg) {
 757                 pkg_get_installed_files(old_owning_pkg);
 758                 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 759                 pkg_free_installed_files(old_owning_pkg);
 760
 761                 /* mark this package to have its filelist written */
 762                 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 763                 owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 764         }
 765 }