apt-pkg/cacheset.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /* ######################################################################
   4
   5    Simple wrapper around a std::set to provide a similar interface to
   6    a set of cache structures as to the complete set of all structures
   7    in the pkgCache. Currently only Package is supported.
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Include Files                                                        /*{{{*/
  12 #include <config.h>
  13
  14 #include <apt-pkg/aptconfiguration.h>
  15 #include <apt-pkg/cachefile.h>
  16 #include <apt-pkg/cachefilter.h>
  17 #include <apt-pkg/cacheset.h>
  18 #include <apt-pkg/error.h>
  19 #include <apt-pkg/strutl.h>
  20 #include <apt-pkg/versionmatch.h>
  21 #include <apt-pkg/pkgrecords.h>
  22 #include <apt-pkg/policy.h>
  23
  24 #include <vector>
  25
  26 #include <regex.h>
  27
  28 #include <apti18n.h>
  29                                                                         /*}}}*/
  30 namespace APT {
  31 // FromTask - Return all packages in the cache from a specific task     /*{{{*/
  32 bool PackageContainerInterface::FromTask(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
  33         size_t const archfound = pattern.find_last_of(':');
  34         std::string arch = "native";
  35         if (archfound != std::string::npos) {
  36                 arch = pattern.substr(archfound+1);
  37                 pattern.erase(archfound);
  38         }
  39
  40         if (pattern[pattern.length() -1] != '^')
  41                 return false;
  42         pattern.erase(pattern.length()-1);
  43
  44         if (unlikely(Cache.GetPkgCache() == 0 || Cache.GetDepCache() == 0))
  45                 return false;
  46
  47         bool const wasEmpty = pci->empty();
  48         if (wasEmpty == true)
  49                 pci->setConstructor(TASK);
  50
  51         // get the records
  52         pkgRecords Recs(Cache);
  53
  54         // build regexp for the task
  55         regex_t Pattern;
  56         char S[300];
  57         snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]|$)", pattern.c_str());
  58         if(regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE) != 0) {
  59                 _error->Error("Failed to compile task regexp");
  60                 return false;
  61         }
  62
  63         bool found = false;
  64         for (pkgCache::GrpIterator Grp = Cache->GrpBegin(); Grp.end() == false; ++Grp) {
  65                 pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
  66                 if (Pkg.end() == true)
  67                         continue;
  68                 pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache);
  69                 if(ver.end() == true)
  70                         continue;
  71
  72                 pkgRecords::Parser &parser = Recs.Lookup(ver.FileList());
  73                 const char *start, *end;
  74                 parser.GetRec(start,end);
  75                 unsigned int const length = end - start;
  76                 char buf[length];
  77                 strncpy(buf, start, length);
  78                 buf[length-1] = '\0';
  79                 if (regexec(&Pattern, buf, 0, 0, 0) != 0)
  80                         continue;
  81
  82                 pci->insert(Pkg);
  83                 helper.showTaskSelection(Pkg, pattern);
  84                 found = true;
  85         }
  86         regfree(&Pattern);
  87
  88         if (found == false) {
  89                 helper.canNotFindTask(pci, Cache, pattern);
  90                 pci->setConstructor(UNKNOWN);
  91                 return false;
  92         }
  93
  94         if (wasEmpty == false && pci->getConstructor() != UNKNOWN)
  95                 pci->setConstructor(UNKNOWN);
  96
  97         return true;
  98 }
  99                                                                         /*}}}*/
 100 // FromRegEx - Return all packages in the cache matching a pattern      /*{{{*/
 101 bool PackageContainerInterface::FromRegEx(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) {
 102         static const char * const isregex = ".?+*|[^$";
 103         if (pattern.find_first_of(isregex) == std::string::npos)
 104                 return false;
 105
 106         bool const wasEmpty = pci->empty();
 107         if (wasEmpty == true)
 108                 pci->setConstructor(REGEX);
 109
 110         size_t archfound = pattern.find_last_of(':');
 111         std::string arch = "native";
 112         if (archfound != std::string::npos) {
 113                 arch = pattern.substr(archfound+1);
 114                 if (arch.find_first_of(isregex) == std::string::npos)
 115                         pattern.erase(archfound);
 116                 else
 117                         arch = "native";
 118         }
 119
 120         if (unlikely(Cache.GetPkgCache() == 0))
 121                 return false;
 122
 123         APT::CacheFilter::PackageNameMatchesRegEx regexfilter(pattern);
 124
 125         bool found = false;
 126         for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) {
 127                 if (regexfilter(Grp) == false)
 128                         continue;
 129                 pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
 130                 if (Pkg.end() == true) {
 131                         if (archfound == std::string::npos) {
 132                                 std::vector<std::string> archs = APT::Configuration::getArchitectures();
 133                                 for (std::vector<std::string>::const_iterator a = archs.begin();
 134                                      a != archs.end() && Pkg.end() != true; ++a)
 135                                         Pkg = Grp.FindPkg(*a);
 136                         }
 137                         if (Pkg.end() == true)
 138                                 continue;
 139                 }
 140
 141                 pci->insert(Pkg);
 142                 helper.showRegExSelection(Pkg, pattern);
 143                 found = true;
 144         }
 145
 146         if (found == false) {
 147                 helper.canNotFindRegEx(pci, Cache, pattern);
 148                 pci->setConstructor(UNKNOWN);
 149                 return false;
 150         }
 151
 152         if (wasEmpty == false && pci->getConstructor() != UNKNOWN)
 153                 pci->setConstructor(UNKNOWN);
 154
 155         return true;
 156 }
 157                                                                         /*}}}*/
 158 // FromFnmatch - Returns the package defined  by this fnmatch           /*{{{*/
 159 bool
 160 PackageContainerInterface::FromFnmatch(PackageContainerInterface * const pci,
 161                                        pkgCacheFile &Cache,
 162                                        std::string pattern,
 163                                        CacheSetHelper &helper)
 164 {
 165         static const char * const isfnmatch = ".?*[]!";
 166         if (pattern.find_first_of(isfnmatch) == std::string::npos)
 167                 return false;
 168
 169         bool const wasEmpty = pci->empty();
 170         if (wasEmpty == true)
 171                 pci->setConstructor(FNMATCH);
 172
 173         size_t archfound = pattern.find_last_of(':');
 174         std::string arch = "native";
 175         if (archfound != std::string::npos) {
 176                 arch = pattern.substr(archfound+1);
 177                 if (arch.find_first_of(isfnmatch) == std::string::npos)
 178                         pattern.erase(archfound);
 179                 else
 180                         arch = "native";
 181         }
 182
 183         if (unlikely(Cache.GetPkgCache() == 0))
 184                 return false;
 185
 186         APT::CacheFilter::PackageNameMatchesFnmatch filter(pattern);
 187
 188         bool found = false;
 189         for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) {
 190                 if (filter(Grp) == false)
 191                         continue;
 192                 pkgCache::PkgIterator Pkg = Grp.FindPkg(arch);
 193                 if (Pkg.end() == true) {
 194                         if (archfound == std::string::npos) {
 195                                 std::vector<std::string> archs = APT::Configuration::getArchitectures();
 196                                 for (std::vector<std::string>::const_iterator a = archs.begin();
 197                                      a != archs.end() && Pkg.end() != true; ++a)
 198                                         Pkg = Grp.FindPkg(*a);
 199                         }
 200                         if (Pkg.end() == true)
 201                                 continue;
 202                 }
 203
 204                 pci->insert(Pkg);
 205                 helper.showRegExSelection(Pkg, pattern);
 206                 found = true;
 207         }
 208
 209         if (found == false) {
 210                 helper.canNotFindRegEx(pci, Cache, pattern);
 211                 pci->setConstructor(UNKNOWN);
 212                 return false;
 213         }
 214
 215         if (wasEmpty == false && pci->getConstructor() != UNKNOWN)
 216                 pci->setConstructor(UNKNOWN);
 217
 218         return true;
 219 }
 220                                                                         /*}}}*/
 221 // FromName - Returns the package defined  by this string               /*{{{*/
 222 pkgCache::PkgIterator PackageContainerInterface::FromName(pkgCacheFile &Cache,
 223                         std::string const &str, CacheSetHelper &helper) {
 224         std::string pkg = str;
 225         size_t archfound = pkg.find_last_of(':');
 226         std::string arch;
 227         if (archfound != std::string::npos) {
 228                 arch = pkg.substr(archfound+1);
 229                 pkg.erase(archfound);
 230         }
 231
 232         if (Cache.GetPkgCache() == 0)
 233                 return pkgCache::PkgIterator(Cache, 0);
 234
 235         pkgCache::PkgIterator Pkg(Cache, 0);
 236         if (arch.empty() == true) {
 237                 pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg);
 238                 if (Grp.end() == false)
 239                         Pkg = Grp.FindPreferredPkg();
 240         } else
 241                 Pkg = Cache.GetPkgCache()->FindPkg(pkg, arch);
 242
 243         if (Pkg.end() == true)
 244                 return helper.canNotFindPkgName(Cache, str);
 245         return Pkg;
 246 }
 247                                                                         /*}}}*/
 248 // FromGroup - Returns the package defined  by this string              /*{{{*/
 249 bool PackageContainerInterface::FromGroup(PackageContainerInterface * const pci, pkgCacheFile &Cache,
 250                         std::string pkg, CacheSetHelper &helper) {
 251         if (unlikely(Cache.GetPkgCache() == 0))
 252                 return false;
 253
 254         size_t const archfound = pkg.find_last_of(':');
 255         std::string arch;
 256         if (archfound != std::string::npos) {
 257                 arch = pkg.substr(archfound+1);
 258                 pkg.erase(archfound);
 259                 if (arch == "all" || arch == "native")
 260                         arch = _config->Find("APT::Architecture");
 261         }
 262
 263         pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg);
 264         if (Grp.end() == false) {
 265                 if (arch.empty() == true) {
 266                         pkgCache::PkgIterator Pkg = Grp.FindPreferredPkg();
 267                         if (Pkg.end() == false)
 268                         {
 269                            pci->insert(Pkg);
 270                            return true;
 271                         }
 272                 } else {
 273                         bool found = false;
 274                         // for 'linux-any' return the first package matching, for 'linux-*' return all matches
 275                         bool const isGlobal = arch.find('*') != std::string::npos;
 276                         APT::CacheFilter::PackageArchitectureMatchesSpecification pams(arch);
 277                         for (pkgCache::PkgIterator Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg)) {
 278                                 if (pams(Pkg) == false)
 279                                         continue;
 280                                 pci->insert(Pkg);
 281                                 found = true;
 282                                 if (isGlobal == false)
 283                                         break;
 284                         }
 285                         if (found == true)
 286                                 return true;
 287                 }
 288         }
 289
 290         pkgCache::PkgIterator Pkg = helper.canNotFindPkgName(Cache, pkg);
 291         if (Pkg.end() == true)
 292            return false;
 293
 294         pci->insert(Pkg);
 295         return true;
 296 }
 297                                                                         /*}}}*/
 298 // FromString - Return all packages matching a specific string          /*{{{*/
 299 bool PackageContainerInterface::FromString(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string const &str, CacheSetHelper &helper) {
 300         bool found = true;
 301         _error->PushToStack();
 302
 303         if (FromGroup(pci, Cache, str, helper) == false &&
 304                  FromTask(pci, Cache, str, helper) == false &&
 305                  FromFnmatch(pci, Cache, str, helper) == false &&
 306                  FromRegEx(pci, Cache, str, helper) == false)
 307         {
 308                 helper.canNotFindPackage(pci, Cache, str);
 309                 found = false;
 310         }
 311
 312         if (found == true)
 313                 _error->RevertToStack();
 314         else
 315                 _error->MergeWithStack();
 316         return found;
 317 }
 318                                                                         /*}}}*/
 319 // FromCommandLine - Return all packages specified on commandline       /*{{{*/
 320 bool PackageContainerInterface::FromCommandLine(PackageContainerInterface * const pci, pkgCacheFile &Cache, const char **cmdline, CacheSetHelper &helper) {
 321         bool found = false;
 322         for (const char **I = cmdline; *I != 0; ++I)
 323                 found |= PackageContainerInterface::FromString(pci, Cache, *I, helper);
 324         return found;
 325 }
 326                                                                         /*}}}*/
 327 // FromModifierCommandLine - helper doing the work for PKG:GroupedFromCommandLine       /*{{{*/
 328 bool PackageContainerInterface::FromModifierCommandLine(unsigned short &modID, PackageContainerInterface * const pci,
 329                                                         pkgCacheFile &Cache, const char * cmdline,
 330                                                         std::list<Modifier> const &mods, CacheSetHelper &helper) {
 331         std::string str = cmdline;
 332         unsigned short fallback = modID;
 333         bool modifierPresent = false;
 334         for (std::list<Modifier>::const_iterator mod = mods.begin();
 335              mod != mods.end(); ++mod) {
 336                 size_t const alength = strlen(mod->Alias);
 337                 switch(mod->Pos) {
 338                 case Modifier::POSTFIX:
 339                         if (str.compare(str.length() - alength, alength,
 340                                         mod->Alias, 0, alength) != 0)
 341                                 continue;
 342                         str.erase(str.length() - alength);
 343                         modID = mod->ID;
 344                         break;
 345                 case Modifier::PREFIX:
 346                         continue;
 347                 case Modifier::NONE:
 348                         continue;
 349                 }
 350                 modifierPresent = true;
 351                 break;
 352         }
 353         if (modifierPresent == true) {
 354                 bool const errors = helper.showErrors(false);
 355                 pkgCache::PkgIterator Pkg = FromName(Cache, cmdline, helper);
 356                 helper.showErrors(errors);
 357                 if (Pkg.end() == false) {
 358                         pci->insert(Pkg);
 359                         modID = fallback;
 360                         return true;
 361                 }
 362         }
 363         return FromString(pci, Cache, str, helper);
 364 }
 365                                                                         /*}}}*/
 366 // FromModifierCommandLine - helper doing the work for VER:GroupedFromCommandLine       /*{{{*/
 367 bool VersionContainerInterface::FromModifierCommandLine(unsigned short &modID,
 368                                                         VersionContainerInterface * const vci,
 369                                                         pkgCacheFile &Cache, const char * cmdline,
 370                                                         std::list<Modifier> const &mods,
 371                                                         CacheSetHelper &helper) {
 372         Version select = NEWEST;
 373         std::string str = cmdline;
 374         bool modifierPresent = false;
 375         unsigned short fallback = modID;
 376         for (std::list<Modifier>::const_iterator mod = mods.begin();
 377              mod != mods.end(); ++mod) {
 378                 if (modID == fallback && mod->ID == fallback)
 379                         select = mod->SelectVersion;
 380                 size_t const alength = strlen(mod->Alias);
 381                 switch(mod->Pos) {
 382                 case Modifier::POSTFIX:
 383                         if (str.compare(str.length() - alength, alength,
 384                                         mod->Alias, 0, alength) != 0)
 385                                 continue;
 386                         str.erase(str.length() - alength);
 387                         modID = mod->ID;
 388                         select = mod->SelectVersion;
 389                         break;
 390                 case Modifier::PREFIX:
 391                         continue;
 392                 case Modifier::NONE:
 393                         continue;
 394                 }
 395                 modifierPresent = true;
 396                 break;
 397         }
 398         if (modifierPresent == true) {
 399                 bool const errors = helper.showErrors(false);
 400                 bool const found = VersionContainerInterface::FromString(vci, Cache, cmdline, select, helper, true);
 401                 helper.showErrors(errors);
 402                 if (found == true) {
 403                         modID = fallback;
 404                         return true;
 405                 }
 406         }
 407         return FromString(vci, Cache, str, select, helper);
 408 }
 409                                                                         /*}}}*/
 410 // FromCommandLine - Return all versions specified on commandline       /*{{{*/
 411 bool VersionContainerInterface::FromCommandLine(VersionContainerInterface * const vci,
 412                                                 pkgCacheFile &Cache, const char **cmdline,
 413                                                 Version const &fallback, CacheSetHelper &helper) {
 414         bool found = false;
 415         for (const char **I = cmdline; *I != 0; ++I)
 416                 found |= VersionContainerInterface::FromString(vci, Cache, *I, fallback, helper);
 417         return found;
 418 }
 419                                                                         /*}}}*/
 420 // FromString - Returns all versions spedcified by a string             /*{{{*/
 421 bool VersionContainerInterface::FromString(VersionContainerInterface * const vci,
 422                                            pkgCacheFile &Cache, std::string pkg,
 423                                            Version const &fallback, CacheSetHelper &helper,
 424                                            bool const onlyFromName) {
 425         std::string ver;
 426         bool verIsRel = false;
 427         size_t const vertag = pkg.find_last_of("/=");
 428         if (vertag != std::string::npos) {
 429                 ver = pkg.substr(vertag+1);
 430                 verIsRel = (pkg[vertag] == '/');
 431                 pkg.erase(vertag);
 432         }
 433         PackageSet pkgset;
 434         if (onlyFromName == false)
 435                 PackageContainerInterface::FromString(&pkgset, Cache, pkg, helper);
 436         else {
 437                 pkgset.insert(PackageContainerInterface::FromName(Cache, pkg, helper));
 438         }
 439
 440         bool errors = true;
 441         if (pkgset.getConstructor() != PackageSet::UNKNOWN)
 442                 errors = helper.showErrors(false);
 443
 444         bool found = false;
 445         for (PackageSet::const_iterator P = pkgset.begin();
 446              P != pkgset.end(); ++P) {
 447                 if (vertag == std::string::npos) {
 448                         found |= VersionContainerInterface::FromPackage(vci, Cache, P, fallback, helper);
 449                         continue;
 450                 }
 451                 pkgCache::VerIterator V;
 452                 if (ver == "installed")
 453                         V = getInstalledVer(Cache, P, helper);
 454                 else if (ver == "candidate")
 455                         V = getCandidateVer(Cache, P, helper);
 456                 else if (ver == "newest") {
 457                         if (P->VersionList != 0)
 458                                 V = P.VersionList();
 459                         else
 460                                 V = helper.canNotFindNewestVer(Cache, P);
 461                 } else {
 462                         pkgVersionMatch Match(ver, (verIsRel == true ? pkgVersionMatch::Release :
 463                                         pkgVersionMatch::Version));
 464                         V = Match.Find(P);
 465                         if (V.end() == true) {
 466                                 if (verIsRel == true)
 467                                         _error->Error(_("Release '%s' for '%s' was not found"),
 468                                                         ver.c_str(), P.FullName(true).c_str());
 469                                 else
 470                                         _error->Error(_("Version '%s' for '%s' was not found"),
 471                                                         ver.c_str(), P.FullName(true).c_str());
 472                                 continue;
 473                         }
 474                 }
 475                 if (V.end() == true)
 476                         continue;
 477                 helper.showSelectedVersion(P, V, ver, verIsRel);
 478                 vci->insert(V);
 479                 found = true;
 480         }
 481         if (pkgset.getConstructor() != PackageSet::UNKNOWN)
 482                 helper.showErrors(errors);
 483         return found;
 484 }
 485                                                                         /*}}}*/
 486 // FromPackage - versions from package based on fallback                /*{{{*/
 487 bool VersionContainerInterface::FromPackage(VersionContainerInterface * const vci,
 488                                             pkgCacheFile &Cache,
 489                                             pkgCache::PkgIterator const &P,
 490                                             Version const &fallback,
 491                                             CacheSetHelper &helper) {
 492         pkgCache::VerIterator V;
 493         bool showErrors;
 494         bool found = false;
 495         switch(fallback) {
 496         case ALL:
 497                 if (P->VersionList != 0)
 498                         for (V = P.VersionList(); V.end() != true; ++V)
 499                                 found |= vci->insert(V);
 500                 else
 501                         helper.canNotFindAllVer(vci, Cache, P);
 502                 break;
 503         case CANDANDINST:
 504                 found |= vci->insert(getInstalledVer(Cache, P, helper));
 505                 found |= vci->insert(getCandidateVer(Cache, P, helper));
 506                 break;
 507         case CANDIDATE:
 508                 found |= vci->insert(getCandidateVer(Cache, P, helper));
 509                 break;
 510         case INSTALLED:
 511                 found |= vci->insert(getInstalledVer(Cache, P, helper));
 512                 break;
 513         case CANDINST:
 514                 showErrors = helper.showErrors(false);
 515                 V = getCandidateVer(Cache, P, helper);
 516                 if (V.end() == true)
 517                         V = getInstalledVer(Cache, P, helper);
 518                 helper.showErrors(showErrors);
 519                 if (V.end() == false)
 520                         found |= vci->insert(V);
 521                 else
 522                         helper.canNotFindInstCandVer(vci, Cache, P);
 523                 break;
 524         case INSTCAND:
 525                 showErrors = helper.showErrors(false);
 526                 V = getInstalledVer(Cache, P, helper);
 527                 if (V.end() == true)
 528                         V = getCandidateVer(Cache, P, helper);
 529                 helper.showErrors(showErrors);
 530                 if (V.end() == false)
 531                         found |= vci->insert(V);
 532                 else
 533                         helper.canNotFindInstCandVer(vci, Cache, P);
 534                 break;
 535         case NEWEST:
 536                 if (P->VersionList != 0)
 537                         found |= vci->insert(P.VersionList());
 538                 else
 539                         helper.canNotFindNewestVer(Cache, P);
 540                 break;
 541         }
 542         return found;
 543 }
 544                                                                         /*}}}*/
 545 // getCandidateVer - Returns the candidate version of the given package /*{{{*/
 546 pkgCache::VerIterator VersionContainerInterface::getCandidateVer(pkgCacheFile &Cache,
 547                 pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
 548         pkgCache::VerIterator Cand;
 549         if (Cache.IsPolicyBuilt() == true || Cache.IsDepCacheBuilt() == false) {
 550                 if (unlikely(Cache.GetPolicy() == 0))
 551                         return pkgCache::VerIterator(Cache);
 552                 Cand = Cache.GetPolicy()->GetCandidateVer(Pkg);
 553         } else {
 554                 Cand = Cache[Pkg].CandidateVerIter(Cache);
 555         }
 556         if (Cand.end() == true)
 557                 return helper.canNotFindCandidateVer(Cache, Pkg);
 558         return Cand;
 559 }
 560                                                                         /*}}}*/
 561 // getInstalledVer - Returns the installed version of the given package /*{{{*/
 562 pkgCache::VerIterator VersionContainerInterface::getInstalledVer(pkgCacheFile &Cache,
 563                 pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) {
 564         if (Pkg->CurrentVer == 0)
 565                 return helper.canNotFindInstalledVer(Cache, Pkg);
 566         return Pkg.CurrentVer();
 567 }
 568                                                                         /*}}}*/
 569
 570 // canNotFindPkgName - handle the case no package has this name         /*{{{*/
 571 pkgCache::PkgIterator CacheSetHelper::canNotFindPkgName(pkgCacheFile &Cache,
 572                         std::string const &str) {
 573         if (ShowError == true)
 574                 _error->Insert(ErrorType, _("Unable to locate package %s"), str.c_str());
 575         return pkgCache::PkgIterator(Cache, 0);
 576 }
 577                                                                         /*}}}*/
 578 // canNotFindTask - handle the case no package is found for a task      /*{{{*/
 579 void CacheSetHelper::canNotFindTask(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string pattern) {
 580         if (ShowError == true)
 581                 _error->Insert(ErrorType, _("Couldn't find task '%s'"), pattern.c_str());
 582 }
 583                                                                         /*}}}*/
 584 // canNotFindRegEx - handle the case no package is found by a regex     /*{{{*/
 585 void CacheSetHelper::canNotFindRegEx(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string pattern) {
 586         if (ShowError == true)
 587                 _error->Insert(ErrorType, _("Couldn't find any package by regex '%s'"), pattern.c_str());
 588 }
 589                                                                         /*}}}*/
 590 // canNotFindPackage - handle the case no package is found from a string/*{{{*/
 591 void CacheSetHelper::canNotFindPackage(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string const &str) {
 592 }
 593                                                                         /*}}}*/
 594 // canNotFindAllVer                                                     /*{{{*/
 595 void CacheSetHelper::canNotFindAllVer(VersionContainerInterface * const vci, pkgCacheFile &Cache,
 596                 pkgCache::PkgIterator const &Pkg) {
 597         if (ShowError == true)
 598                 _error->Insert(ErrorType, _("Can't select versions from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str());
 599 }
 600                                                                         /*}}}*/
 601 // canNotFindInstCandVer                                                /*{{{*/
 602 void CacheSetHelper::canNotFindInstCandVer(VersionContainerInterface * const vci, pkgCacheFile &Cache,
 603                 pkgCache::PkgIterator const &Pkg) {
 604         if (ShowError == true)
 605                 _error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str());
 606 }
 607                                                                         /*}}}*/
 608 // canNotFindInstCandVer                                                /*{{{*/
 609 void CacheSetHelper::canNotFindCandInstVer(VersionContainerInterface * const vci, pkgCacheFile &Cache,
 610                 pkgCache::PkgIterator const &Pkg) {
 611         if (ShowError == true)
 612                 _error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str());
 613 }
 614                                                                         /*}}}*/
 615 // canNotFindNewestVer                                                  /*{{{*/
 616 pkgCache::VerIterator CacheSetHelper::canNotFindNewestVer(pkgCacheFile &Cache,
 617                 pkgCache::PkgIterator const &Pkg) {
 618         if (ShowError == true)
 619                 _error->Insert(ErrorType, _("Can't select newest version from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str());
 620         return pkgCache::VerIterator(Cache, 0);
 621 }
 622                                                                         /*}}}*/
 623 // canNotFindCandidateVer                                               /*{{{*/
 624 pkgCache::VerIterator CacheSetHelper::canNotFindCandidateVer(pkgCacheFile &Cache,
 625                 pkgCache::PkgIterator const &Pkg) {
 626         if (ShowError == true)
 627                 _error->Insert(ErrorType, _("Can't select candidate version from package %s as it has no candidate"), Pkg.FullName(true).c_str());
 628         return pkgCache::VerIterator(Cache, 0);
 629 }
 630                                                                         /*}}}*/
 631 // canNotFindInstalledVer                                               /*{{{*/
 632 pkgCache::VerIterator CacheSetHelper::canNotFindInstalledVer(pkgCacheFile &Cache,
 633                 pkgCache::PkgIterator const &Pkg) {
 634         if (ShowError == true)
 635                 _error->Insert(ErrorType, _("Can't select installed version from package %s as it is not installed"), Pkg.FullName(true).c_str());
 636         return pkgCache::VerIterator(Cache, 0);
 637 }
 638                                                                         /*}}}*/
 639 // showTaskSelection                                                    /*{{{*/
 640 void CacheSetHelper::showTaskSelection(pkgCache::PkgIterator const &pkg,
 641                                        std::string const &pattern) {
 642 }
 643                                                                         /*}}}*/
 644 // showRegExSelection                                                   /*{{{*/
 645 void CacheSetHelper::showRegExSelection(pkgCache::PkgIterator const &pkg,
 646                                         std::string const &pattern) {
 647 }
 648                                                                         /*}}}*/
 649 // showSelectedVersion                                                  /*{{{*/
 650 void CacheSetHelper::showSelectedVersion(pkgCache::PkgIterator const &Pkg,
 651                                          pkgCache::VerIterator const Ver,
 652                                          std::string const &ver,
 653                                          bool const verIsRel) {
 654 }
 655                                                                         /*}}}*/
 656 }