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)) {
  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)
  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
 125                 ret = parse_from_stream_nomalloc(pkg_parse_line, pkg, fp, 0,
 126                                                  &buf, len);
 127
 128                 if (pkg->name == NULL) {
 129                         /* probably just a blank line */
 130                         ret = 1;
 131                 }
 132
 133                 if (ret) {
 134                         pkg_deinit(pkg);
 135                         free(pkg);
 136                         if (ret == -1)
 137                                 break;
 138                         if (ret == 1)
 139                                 /* Probably a blank line, continue parsing. */
 140                                 ret = 0;
 141                         continue;
 142                 }
 143
 144                 if (!pkg_get_string(pkg, PKG_ARCHITECTURE) ||
 145                     !pkg_get_int(pkg, PKG_ARCH_PRIORITY)) {
 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(void)
 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)) {
 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))
 218                                 return -1;
 219                 }
 220         }
 221
 222         return 0;
 223 }
 224
 225 static abstract_pkg_t *abstract_pkg_fetch_by_name(const char *pkg_name)
 226 {
 227         return (abstract_pkg_t *) hash_table_get(&conf->pkg_hash, pkg_name);
 228 }
 229
 230 pkg_t *pkg_hash_fetch_best_installation_candidate(abstract_pkg_t * apkg,
 231                                                   int (*constraint_fcn) (pkg_t *
 232                                                                          pkg,
 233                                                                          void
 234                                                                          *cdata),
 235                                                   void *cdata, int quiet)
 236 {
 237         int i, j;
 238         int nprovides = 0;
 239         int nmatching = 0;
 240         int wrong_arch_found = 0;
 241         int arch_priority;
 242         pkg_vec_t *matching_pkgs;
 243         abstract_pkg_vec_t *matching_apkgs;
 244         abstract_pkg_vec_t *provided_apkg_vec;
 245         abstract_pkg_t **provided_apkgs;
 246         abstract_pkg_vec_t *providers;
 247         pkg_t *latest_installed_parent = NULL;
 248         pkg_t *latest_matching = NULL;
 249         pkg_t *priorized_matching = NULL;
 250         pkg_t *held_pkg = NULL;
 251         pkg_t *good_pkg_by_name = NULL;
 252
 253         if (apkg == NULL || apkg->provided_by == NULL
 254             || (apkg->provided_by->len == 0))
 255                 return NULL;
 256
 257         matching_pkgs = pkg_vec_alloc();
 258         matching_apkgs = abstract_pkg_vec_alloc();
 259         providers = abstract_pkg_vec_alloc();
 260
 261         opkg_msg(DEBUG, "Best installation candidate for %s:\n", apkg->name);
 262
 263         provided_apkg_vec = apkg->provided_by;
 264         nprovides = provided_apkg_vec->len;
 265         provided_apkgs = provided_apkg_vec->pkgs;
 266         if (nprovides > 1)
 267                 opkg_msg(DEBUG, "apkg=%s nprovides=%d.\n", apkg->name,
 268                          nprovides);
 269
 270         /* accumulate all the providers */
 271         for (i = 0; i < nprovides; i++) {
 272                 abstract_pkg_t *provider_apkg = provided_apkgs[i];
 273                 opkg_msg(DEBUG, "Adding %s to providers.\n",
 274                          provider_apkg->name);
 275                 abstract_pkg_vec_insert(providers, provider_apkg);
 276         }
 277         nprovides = providers->len;
 278
 279         for (i = 0; i < nprovides; i++) {
 280                 abstract_pkg_t *provider_apkg =
 281                     abstract_pkg_vec_get(providers, i);
 282                 abstract_pkg_t *replacement_apkg = NULL;
 283                 pkg_vec_t *vec;
 284
 285                 if (provider_apkg->replaced_by
 286                     && provider_apkg->replaced_by->len) {
 287                         replacement_apkg = provider_apkg->replaced_by->pkgs[0];
 288                         if (provider_apkg->replaced_by->len > 1) {
 289                                 opkg_msg(NOTICE, "Multiple replacers for %s, "
 290                                          "using first one (%s).\n",
 291                                          provider_apkg->name,
 292                                          replacement_apkg->name);
 293                         }
 294                 }
 295
 296                 if (replacement_apkg)
 297                         opkg_msg(DEBUG,
 298                                  "replacement_apkg=%s for provider_apkg=%s.\n",
 299                                  replacement_apkg->name, provider_apkg->name);
 300
 301                 if (replacement_apkg && (replacement_apkg != provider_apkg)) {
 302                         if (abstract_pkg_vec_contains
 303                             (providers, replacement_apkg))
 304                                 continue;
 305                         else
 306                                 provider_apkg = replacement_apkg;
 307                 }
 308
 309                 if (!(vec = provider_apkg->pkgs)) {
 310                         opkg_msg(DEBUG, "No pkgs for provider_apkg %s.\n",
 311                                  provider_apkg->name);
 312                         continue;
 313                 }
 314
 315                 /* now check for supported architecture */
 316                 {
 317                         int max_count = 0;
 318
 319                         /* count packages matching max arch priority and keep track of last one */
 320                         for (j = 0; j < vec->len; j++) {
 321                                 pkg_t *maybe = vec->pkgs[j];
 322                                 arch_priority = pkg_get_int(maybe, PKG_ARCH_PRIORITY);
 323
 324                                 opkg_msg(DEBUG,
 325                                          "%s arch=%s arch_priority=%d version=%s.\n",
 326                                          maybe->name, pkg_get_string(maybe, PKG_ARCHITECTURE),
 327                                          arch_priority, pkg_get_string(maybe, PKG_VERSION));
 328                                 /* We make sure not to add the same package twice. Need to search for the reason why
 329                                    they show up twice sometimes. */
 330                                 if ((arch_priority > 0)
 331                                     &&
 332                                     (!pkg_vec_contains(matching_pkgs, maybe))) {
 333                                         max_count++;
 334                                         abstract_pkg_vec_insert(matching_apkgs,
 335                                                                 maybe->parent);
 336                                         pkg_vec_insert(matching_pkgs, maybe);
 337                                 }
 338                         }
 339
 340                         if (vec->len > 0 && matching_pkgs->len < 1)
 341                                 wrong_arch_found = 1;
 342                 }
 343         }
 344
 345         if (matching_pkgs->len < 1) {
 346                 if (wrong_arch_found)
 347                         opkg_msg(ERROR, "Packages for %s found, but"
 348                                  " incompatible with the architectures configured\n",
 349                                  apkg->name);
 350                 pkg_vec_free(matching_pkgs);
 351                 abstract_pkg_vec_free(matching_apkgs);
 352                 abstract_pkg_vec_free(providers);
 353                 return NULL;
 354         }
 355
 356         if (matching_pkgs->len > 1)
 357                 pkg_vec_sort(matching_pkgs,
 358                              pkg_name_version_and_architecture_compare);
 359         if (matching_apkgs->len > 1)
 360                 abstract_pkg_vec_sort(matching_pkgs, abstract_pkg_name_compare);
 361
 362         for (i = 0; i < matching_pkgs->len; i++) {
 363                 pkg_t *matching = matching_pkgs->pkgs[i];
 364                 if (constraint_fcn(matching, cdata)) {
 365                         opkg_msg(DEBUG, "Candidate: %s %s.\n",
 366                                  matching->name, pkg_get_string(matching, PKG_VERSION));
 367                         good_pkg_by_name = matching;
 368                         /* It has been provided by hand, so it is what user want */
 369                         if (matching->provided_by_hand == 1)
 370                                 break;
 371                 }
 372         }
 373
 374         for (i = 0; i < matching_pkgs->len; i++) {
 375                 pkg_t *matching = matching_pkgs->pkgs[i];
 376                 latest_matching = matching;
 377                 if (matching->parent->state_status == SS_INSTALLED
 378                     || matching->parent->state_status == SS_UNPACKED)
 379                         latest_installed_parent = matching;
 380                 if (matching->state_flag & (SF_HOLD | SF_PREFER)) {
 381                         if (held_pkg)
 382                                 opkg_msg(NOTICE,
 383                                          "Multiple packages (%s and %s) providing"
 384                                          " same name marked HOLD or PREFER. "
 385                                          "Using latest.\n", held_pkg->name,
 386                                          matching->name);
 387                         held_pkg = matching;
 388                 }
 389         }
 390
 391         if (!good_pkg_by_name && !held_pkg && !latest_installed_parent
 392             && matching_apkgs->len > 1 && !quiet) {
 393                 int prio = 0;
 394                 for (i = 0; i < matching_pkgs->len; i++) {
 395                         pkg_t *matching = matching_pkgs->pkgs[i];
 396                         arch_priority = pkg_get_int(matching, PKG_ARCH_PRIORITY);
 397                         if (arch_priority > prio) {
 398                                 priorized_matching = matching;
 399                                 prio = arch_priority;
 400                                 opkg_msg(DEBUG, "Match %s with priority %i.\n",
 401                                          matching->name, prio);
 402                         }
 403                 }
 404
 405         }
 406
 407         if (conf->verbosity >= INFO && matching_apkgs->len > 1) {
 408                 opkg_msg(INFO, "%d matching pkgs for apkg=%s:\n",
 409                          matching_pkgs->len, apkg->name);
 410                 for (i = 0; i < matching_pkgs->len; i++) {
 411                         pkg_t *matching = matching_pkgs->pkgs[i];
 412                         opkg_msg(INFO, "%s %s %s\n",
 413                                  matching->name, pkg_get_string(matching, PKG_VERSION),
 414                                  pkg_get_string(matching, PKG_ARCHITECTURE));
 415                 }
 416         }
 417
 418         nmatching = matching_apkgs->len;
 419
 420         pkg_vec_free(matching_pkgs);
 421         abstract_pkg_vec_free(matching_apkgs);
 422         abstract_pkg_vec_free(providers);
 423
 424         if (good_pkg_by_name) { /* We found a good candidate, we will install it */
 425                 return good_pkg_by_name;
 426         }
 427         if (held_pkg) {
 428                 opkg_msg(INFO, "Using held package %s.\n", held_pkg->name);
 429                 return held_pkg;
 430         }
 431         if (latest_installed_parent) {
 432                 opkg_msg(INFO,
 433                          "Using latest version of installed package %s.\n",
 434                          latest_installed_parent->name);
 435                 return latest_installed_parent;
 436         }
 437         if (priorized_matching) {
 438                 opkg_msg(INFO, "Using priorized matching %s %s %s.\n",
 439                          priorized_matching->name, pkg_get_string(priorized_matching, PKG_VERSION),
 440                          pkg_get_string(priorized_matching, PKG_ARCHITECTURE));
 441                 return priorized_matching;
 442         }
 443         if (nmatching > 1) {
 444                 opkg_msg(INFO, "No matching pkg out of %d matching_apkgs.\n",
 445                          nmatching);
 446                 return NULL;
 447         }
 448         if (latest_matching) {
 449                 opkg_msg(INFO, "Using latest matching %s %s %s.\n",
 450                          latest_matching->name, pkg_get_string(latest_matching, PKG_VERSION),
 451                          pkg_get_string(latest_matching, PKG_ARCHITECTURE));
 452                 return latest_matching;
 453         }
 454         return NULL;
 455 }
 456
 457 static int pkg_name_constraint_fcn(pkg_t * pkg, void *cdata)
 458 {
 459         const char *name = (const char *)cdata;
 460
 461         if (strcmp(pkg->name, name) == 0)
 462                 return 1;
 463         else
 464                 return 0;
 465 }
 466
 467 static pkg_vec_t *pkg_vec_fetch_by_name(const char *pkg_name)
 468 {
 469         abstract_pkg_t *ab_pkg;
 470
 471         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 472                 return NULL;
 473
 474         if (ab_pkg->pkgs)
 475                 return ab_pkg->pkgs;
 476
 477         if (ab_pkg->provided_by) {
 478                 abstract_pkg_t *abpkg =
 479                     abstract_pkg_vec_get(ab_pkg->provided_by, 0);
 480                 if (abpkg != NULL)
 481                         return abpkg->pkgs;
 482                 else
 483                         return ab_pkg->pkgs;
 484         }
 485
 486         return NULL;
 487 }
 488
 489 pkg_t *pkg_hash_fetch_best_installation_candidate_by_name(const char *name)
 490 {
 491         abstract_pkg_t *apkg = NULL;
 492
 493         if (!(apkg = abstract_pkg_fetch_by_name(name)))
 494                 return NULL;
 495
 496         return pkg_hash_fetch_best_installation_candidate(apkg,
 497                                                           pkg_name_constraint_fcn,
 498                                                           apkg->name, 0);
 499 }
 500
 501 pkg_t *pkg_hash_fetch_by_name_version(const char *pkg_name, const char *version)
 502 {
 503         pkg_vec_t *vec;
 504         int i;
 505         char *version_str = NULL;
 506
 507         if (!(vec = pkg_vec_fetch_by_name(pkg_name)))
 508                 return NULL;
 509
 510         for (i = 0; i < vec->len; i++) {
 511                 version_str = pkg_version_str_alloc(vec->pkgs[i]);
 512                 if (!strcmp(version_str, version)) {
 513                         free(version_str);
 514                         break;
 515                 }
 516                 free(version_str);
 517         }
 518
 519         if (i == vec->len)
 520                 return NULL;
 521
 522         return vec->pkgs[i];
 523 }
 524
 525 pkg_t *pkg_hash_fetch_installed_by_name_dest(const char *pkg_name,
 526                                              pkg_dest_t * dest)
 527 {
 528         pkg_vec_t *vec;
 529         int i;
 530
 531         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 532                 return NULL;
 533         }
 534
 535         for (i = 0; i < vec->len; i++)
 536                 if ((vec->pkgs[i]->state_status == SS_INSTALLED
 537                      || vec->pkgs[i]->state_status == SS_UNPACKED)
 538                     && vec->pkgs[i]->dest == dest) {
 539                         return vec->pkgs[i];
 540                 }
 541
 542         return NULL;
 543 }
 544
 545 pkg_t *pkg_hash_fetch_installed_by_name(const char *pkg_name)
 546 {
 547         pkg_vec_t *vec;
 548         int i;
 549
 550         if (!(vec = pkg_vec_fetch_by_name(pkg_name))) {
 551                 return NULL;
 552         }
 553
 554         for (i = 0; i < vec->len; i++) {
 555                 if (vec->pkgs[i]->state_status == SS_INSTALLED
 556                     || vec->pkgs[i]->state_status == SS_UNPACKED) {
 557                         return vec->pkgs[i];
 558                 }
 559         }
 560
 561         return NULL;
 562 }
 563
 564 static void
 565 pkg_hash_fetch_available_helper(const char *pkg_name, void *entry, void *data)
 566 {
 567         int j;
 568         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 569         pkg_vec_t *all = (pkg_vec_t *) data;
 570         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 571
 572         if (!pkg_vec)
 573                 return;
 574
 575         for (j = 0; j < pkg_vec->len; j++) {
 576                 pkg_t *pkg = pkg_vec->pkgs[j];
 577                 pkg_vec_insert(all, pkg);
 578         }
 579 }
 580
 581 void pkg_hash_fetch_available(pkg_vec_t * all)
 582 {
 583         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_available_helper,
 584                            all);
 585 }
 586
 587 static void
 588 pkg_hash_fetch_all_installed_helper(const char *pkg_name, void *entry,
 589                                     void *data)
 590 {
 591         abstract_pkg_t *ab_pkg = (abstract_pkg_t *) entry;
 592         pkg_vec_t *all = (pkg_vec_t *) data;
 593         pkg_vec_t *pkg_vec = ab_pkg->pkgs;
 594         int j;
 595
 596         if (!pkg_vec)
 597                 return;
 598
 599         for (j = 0; j < pkg_vec->len; j++) {
 600                 pkg_t *pkg = pkg_vec->pkgs[j];
 601                 if (pkg->state_status == SS_INSTALLED
 602                     || pkg->state_status == SS_UNPACKED)
 603                         pkg_vec_insert(all, pkg);
 604         }
 605 }
 606
 607 void pkg_hash_fetch_all_installed(pkg_vec_t * all)
 608 {
 609         hash_table_foreach(&conf->pkg_hash, pkg_hash_fetch_all_installed_helper,
 610                            all);
 611 }
 612
 613 /*
 614  * This assumes that the abstract pkg doesn't exist.
 615  */
 616 static abstract_pkg_t *add_new_abstract_pkg_by_name(const char *pkg_name)
 617 {
 618         abstract_pkg_t *ab_pkg;
 619
 620         ab_pkg = abstract_pkg_new();
 621
 622         ab_pkg->name = xstrdup(pkg_name);
 623         hash_table_insert(&conf->pkg_hash, pkg_name, ab_pkg);
 624
 625         return ab_pkg;
 626 }
 627
 628 abstract_pkg_t *ensure_abstract_pkg_by_name(const char *pkg_name)
 629 {
 630         abstract_pkg_t *ab_pkg;
 631
 632         if (!(ab_pkg = abstract_pkg_fetch_by_name(pkg_name)))
 633                 ab_pkg = add_new_abstract_pkg_by_name(pkg_name);
 634
 635         return ab_pkg;
 636 }
 637
 638 void hash_insert_pkg(pkg_t * pkg, int set_status)
 639 {
 640         abstract_pkg_t *ab_pkg;
 641
 642         ab_pkg = ensure_abstract_pkg_by_name(pkg->name);
 643         if (!ab_pkg->pkgs)
 644                 ab_pkg->pkgs = pkg_vec_alloc();
 645
 646         if (pkg->state_status == SS_INSTALLED) {
 647                 ab_pkg->state_status = SS_INSTALLED;
 648         } else if (pkg->state_status == SS_UNPACKED) {
 649                 ab_pkg->state_status = SS_UNPACKED;
 650         }
 651
 652         buildDepends(pkg);
 653
 654         buildProvides(ab_pkg, pkg);
 655
 656         init_providelist(pkg, NULL);
 657
 658         /* Need to build the conflicts graph before replaces for correct
 659          * calculation of replaced_by relation.
 660          */
 661         buildConflicts(pkg);
 662
 663         buildReplaces(ab_pkg, pkg);
 664
 665         buildDependedUponBy(pkg, ab_pkg);
 666
 667         pkg_vec_insert_merge(ab_pkg->pkgs, pkg, set_status);
 668         pkg->parent = ab_pkg;
 669 }
 670
 671 static const char *strip_offline_root(const char *file_name)
 672 {
 673         unsigned int len;
 674
 675         if (conf->offline_root) {
 676                 len = strlen(conf->offline_root);
 677                 if (strncmp(file_name, conf->offline_root, len) == 0)
 678                         file_name += len;
 679         }
 680
 681         return file_name;
 682 }
 683
 684 void file_hash_remove(const char *file_name)
 685 {
 686         file_name = strip_offline_root(file_name);
 687         hash_table_remove(&conf->file_hash, file_name);
 688 }
 689
 690 pkg_t *file_hash_get_file_owner(const char *file_name)
 691 {
 692         file_name = strip_offline_root(file_name);
 693         return hash_table_get(&conf->file_hash, file_name);
 694 }
 695
 696 void file_hash_set_file_owner(const char *file_name, pkg_t * owning_pkg)
 697 {
 698         pkg_t *old_owning_pkg;
 699         int file_name_len = strlen(file_name);
 700
 701         if (file_name[file_name_len - 1] == '/')
 702                 return;
 703
 704         file_name = strip_offline_root(file_name);
 705
 706         old_owning_pkg = hash_table_get(&conf->file_hash, file_name);
 707         hash_table_insert(&conf->file_hash, file_name, owning_pkg);
 708
 709         if (old_owning_pkg) {
 710                 pkg_get_installed_files(old_owning_pkg);
 711                 str_list_remove_elt(old_owning_pkg->installed_files, file_name);
 712                 pkg_free_installed_files(old_owning_pkg);
 713
 714                 /* mark this package to have its filelist written */
 715                 old_owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 716                 owning_pkg->state_flag |= SF_FILELIST_CHANGED;
 717         }
 718 }