diff options
Diffstat (limited to 'apt-pkg/cacheset.cc')
| -rw-r--r-- | apt-pkg/cacheset.cc | 939 |
1 files changed, 939 insertions, 0 deletions
diff --git a/apt-pkg/cacheset.cc b/apt-pkg/cacheset.cc new file mode 100644 index 0000000..e52f762 --- /dev/null +++ b/apt-pkg/cacheset.cc @@ -0,0 +1,939 @@ +// -*- mode: cpp; mode: fold -*- +// Description /*{{{*/ +/* ###################################################################### + + Simple wrapper around a std::set to provide a similar interface to + a set of cache structures as to the complete set of all structures + in the pkgCache. Currently only Package is supported. + + ##################################################################### */ + /*}}}*/ +// Include Files /*{{{*/ +#include <config.h> + +#include <apt-pkg/aptconfiguration.h> +#include <apt-pkg/cachefile.h> +#include <apt-pkg/cachefilter.h> +#include <apt-pkg/cacheset.h> +#include <apt-pkg/configuration.h> +#include <apt-pkg/depcache.h> +#include <apt-pkg/error.h> +#include <apt-pkg/fileutl.h> +#include <apt-pkg/macros.h> +#include <apt-pkg/pkgcache.h> +#include <apt-pkg/pkgrecords.h> +#include <apt-pkg/policy.h> +#include <apt-pkg/versionmatch.h> + +#include <list> +#include <string> +#include <vector> +#include <regex.h> +#include <stddef.h> +#include <stdio.h> +#include <string.h> + +#include <apti18n.h> + /*}}}*/ +namespace APT { +// PackageFrom - selecting the appropriate method for package selection /*{{{*/ +bool CacheSetHelper::PackageFrom(enum PkgSelector const select, PackageContainerInterface * const pci, + pkgCacheFile &Cache, std::string const &pattern) { + switch (select) { + case UNKNOWN: return false; + case REGEX: return PackageFromRegEx(pci, Cache, pattern); + case TASK: return PackageFromTask(pci, Cache, pattern); + case FNMATCH: return PackageFromFnmatch(pci, Cache, pattern); + case PACKAGENAME: return PackageFromPackageName(pci, Cache, pattern); + case STRING: return PackageFromString(pci, Cache, pattern); + case PATTERN: return PackageFromPattern(pci, Cache, pattern); + } + return false; +} + /*}}}*/ +// PackageFromTask - Return all packages in the cache from a specific task /*{{{*/ +bool CacheSetHelper::PackageFromTask(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string pattern) { + size_t const archfound = pattern.find_last_of(':'); + std::string arch = "native"; + if (archfound != std::string::npos) { + arch = pattern.substr(archfound+1); + pattern.erase(archfound); + } + + if (pattern[pattern.length() -1] != '^') + return false; + pattern.erase(pattern.length()-1); + + if (unlikely(Cache.GetPkgCache() == 0 || Cache.GetDepCache() == 0)) + return false; + + bool const wasEmpty = pci->empty(); + if (wasEmpty == true) + pci->setConstructor(CacheSetHelper::TASK); + + // get the records + pkgRecords Recs(Cache); + + // build regexp for the task + regex_t Pattern; + char S[300]; + snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]|$)", pattern.c_str()); + if(regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE) != 0) { + _error->Error("Failed to compile task regexp"); + return false; + } + + bool found = false; + for (pkgCache::GrpIterator Grp = Cache->GrpBegin(); Grp.end() == false; ++Grp) { + pkgCache::PkgIterator Pkg = Grp.FindPkg(arch); + if (Pkg.end() == true) + continue; + pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache); + if(ver.end() == true) + continue; + + pkgRecords::Parser &parser = Recs.Lookup(ver.FileList()); + const char *start, *end; + parser.GetRec(start,end); + unsigned int const length = end - start; + if (unlikely(length == 0)) + continue; + char buf[length]; + strncpy(buf, start, length); + buf[length-1] = '\0'; + if (regexec(&Pattern, buf, 0, 0, 0) != 0) + continue; + + pci->insert(Pkg); + showPackageSelection(Pkg, CacheSetHelper::TASK, pattern); + found = true; + } + regfree(&Pattern); + + if (found == false) { + canNotFindPackage(CacheSetHelper::TASK, pci, Cache, pattern); + pci->setConstructor(CacheSetHelper::UNKNOWN); + return false; + } + + if (wasEmpty == false && pci->getConstructor() != CacheSetHelper::UNKNOWN) + pci->setConstructor(CacheSetHelper::UNKNOWN); + + return true; +} + /*}}}*/ +// PackageFromRegEx - Return all packages in the cache matching a pattern /*{{{*/ +bool CacheSetHelper::PackageFromRegEx(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string pattern) { + static const char * const isregex = ".?+*|[^$"; + + if (_config->FindB("APT::Cmd::Pattern-Only", false)) + { + // Only allow explicit regexp pattern. + if (pattern.size() == 0 || (pattern[0] != '^' && pattern[pattern.size() - 1] != '$')) + return false; + } else { + if (pattern.find_first_of(isregex) == std::string::npos) + return false; + } + + bool const wasEmpty = pci->empty(); + if (wasEmpty == true) + pci->setConstructor(CacheSetHelper::REGEX); + + size_t archfound = pattern.find_last_of(':'); + std::string arch = "native"; + if (archfound != std::string::npos) { + arch = pattern.substr(archfound+1); + if (arch.find_first_of(isregex) == std::string::npos) + pattern.erase(archfound); + else + arch = "native"; + } + + if (unlikely(Cache.GetPkgCache() == 0)) + return false; + + APT::CacheFilter::PackageNameMatchesRegEx regexfilter(pattern); + + bool found = false; + for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) { + if (regexfilter(Grp) == false) + continue; + pkgCache::PkgIterator Pkg = Grp.FindPkg(arch); + if (Pkg.end() == true) { + if (archfound == std::string::npos) + Pkg = Grp.FindPreferredPkg(true); + if (Pkg.end() == true) + continue; + } + + pci->insert(Pkg); + showPackageSelection(Pkg, CacheSetHelper::REGEX, pattern); + found = true; + } + + if (found == false) { + canNotFindPackage(CacheSetHelper::REGEX, pci, Cache, pattern); + pci->setConstructor(CacheSetHelper::UNKNOWN); + return false; + } + + if (wasEmpty == false && pci->getConstructor() != CacheSetHelper::UNKNOWN) + pci->setConstructor(CacheSetHelper::UNKNOWN); + + return true; +} + /*}}}*/ +// PackageFromFnmatch - Returns the package defined by this fnmatch /*{{{*/ +bool CacheSetHelper::PackageFromFnmatch(PackageContainerInterface * const pci, + pkgCacheFile &Cache, std::string pattern) +{ + static const char * const isfnmatch = ".?*[]!"; + // Whitelist approach: Anything not in here is not a valid pattern + static const char *const isfnmatch_strict = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+-.:*"; + + if (_config->FindB("APT::Cmd::Pattern-Only", false) && pattern.find_first_not_of(isfnmatch_strict) != std::string::npos) + return false; + if (pattern.find_first_of(isfnmatch) == std::string::npos) + return false; + + bool const wasEmpty = pci->empty(); + if (wasEmpty == true) + pci->setConstructor(CacheSetHelper::FNMATCH); + + size_t archfound = pattern.find_last_of(':'); + std::string arch = "native"; + if (archfound != std::string::npos) { + arch = pattern.substr(archfound+1); + if (arch.find_first_of(isfnmatch) == std::string::npos) + pattern.erase(archfound); + else + arch = "native"; + } + + if (unlikely(Cache.GetPkgCache() == 0)) + return false; + + APT::CacheFilter::PackageNameMatchesFnmatch filter(pattern); + + bool found = false; + for (pkgCache::GrpIterator Grp = Cache.GetPkgCache()->GrpBegin(); Grp.end() == false; ++Grp) { + if (filter(Grp) == false) + continue; + pkgCache::PkgIterator Pkg = Grp.FindPkg(arch); + if (Pkg.end() == true) { + if (archfound == std::string::npos) + Pkg = Grp.FindPreferredPkg(true); + if (Pkg.end() == true) + continue; + } + + pci->insert(Pkg); + showPackageSelection(Pkg, CacheSetHelper::FNMATCH, pattern); + found = true; + } + + if (found == false) { + canNotFindPackage(CacheSetHelper::FNMATCH, pci, Cache, pattern); + pci->setConstructor(CacheSetHelper::UNKNOWN); + return false; + } + + if (wasEmpty == false && pci->getConstructor() != CacheSetHelper::UNKNOWN) + pci->setConstructor(CacheSetHelper::UNKNOWN); + + return true; +} + /*}}}*/ +// PackageFromPackageName - Returns the package defined by this string /*{{{*/ +bool CacheSetHelper::PackageFromPackageName(PackageContainerInterface * const pci, pkgCacheFile &Cache, + std::string pkg) { + if (unlikely(Cache.GetPkgCache() == 0)) + return false; + + std::string const pkgstring = pkg; + size_t const archfound = pkg.find_last_of(':'); + std::string arch; + if (archfound != std::string::npos) { + arch = pkg.substr(archfound+1); + pkg.erase(archfound); + if (arch == "all" || arch == "native") + arch = _config->Find("APT::Architecture"); + } + + pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg); + if (Grp.end() == false) { + if (arch.empty() == true) { + pkgCache::PkgIterator Pkg = Grp.FindPreferredPkg(); + if (Pkg.end() == false) + { + pci->insert(Pkg); + return true; + } + } else { + bool found = false; + // for 'linux-any' return the first package matching, for 'linux-*' return all matches + bool const isGlobal = arch.find('*') != std::string::npos; + APT::CacheFilter::PackageArchitectureMatchesSpecification pams(arch); + for (pkgCache::PkgIterator Pkg = Grp.PackageList(); Pkg.end() == false; Pkg = Grp.NextPkg(Pkg)) { + if (pams(Pkg) == false) + continue; + pci->insert(Pkg); + found = true; + if (isGlobal == false) + break; + } + if (found == true) + return true; + } + } + + pkgCache::PkgIterator Pkg = canNotFindPkgName(Cache, pkgstring); + if (Pkg.end() == true) + return false; + + pci->insert(Pkg); + return true; +} + /*}}}*/ +// PackageFromPattern - Return all packages matching a specific pattern /*{{{*/ +bool CacheSetHelper::PackageFromPattern(PackageContainerInterface *const pci, pkgCacheFile &Cache, std::string const &pattern) +{ + if (pattern.size() < 1 || (pattern[0] != '?' && pattern[0] != '~')) + return false; + + auto compiledPattern = APT::CacheFilter::ParsePattern(pattern, &Cache); + if (!compiledPattern) + return false; + + for (pkgCache::PkgIterator Pkg = Cache->PkgBegin(); Pkg.end() == false; ++Pkg) + { + if ((*compiledPattern)(Pkg) == false) + continue; + + pci->insert(Pkg); + } + return true; +} + /*}}}*/ +// PackageFromString - Return all packages matching a specific string /*{{{*/ +bool CacheSetHelper::PackageFromString(PackageContainerInterface * const pci, pkgCacheFile &Cache, std::string const &str) { + bool found = true; + _error->PushToStack(); + + if (PackageFrom(CacheSetHelper::PATTERN, pci, Cache, str) == false && + PackageFrom(CacheSetHelper::PACKAGENAME, pci, Cache, str) == false && + PackageFrom(CacheSetHelper::TASK, pci, Cache, str) == false && + // FIXME: hm, hm, regexp/fnmatch incompatible? + PackageFrom(CacheSetHelper::FNMATCH, pci, Cache, str) == false && + PackageFrom(CacheSetHelper::REGEX, pci, Cache, str) == false) + { + canNotFindPackage(CacheSetHelper::PACKAGENAME, pci, Cache, str); + found = false; + } + + if (found == true) + _error->RevertToStack(); + else + _error->MergeWithStack(); + return found; +} + /*}}}*/ +// PackageFromCommandLine - Return all packages specified on commandline /*{{{*/ +bool CacheSetHelper::PackageFromCommandLine(PackageContainerInterface * const pci, pkgCacheFile &Cache, const char **cmdline) { + bool found = false; + for (const char **I = cmdline; *I != 0; ++I) + found |= PackageFrom(CacheSetHelper::STRING, pci, Cache, *I); + return found; +} + /*}}}*/ +// FromModifierCommandLine - helper doing the work for PKG:GroupedFromCommandLine /*{{{*/ +bool CacheSetHelper::PackageFromModifierCommandLine(unsigned short &modID, PackageContainerInterface * const pci, + pkgCacheFile &Cache, const char * cmdline, + std::list<PkgModifier> const &mods) { + std::string str = cmdline; + unsigned short fallback = modID; + bool modifierPresent = false; + for (std::list<PkgModifier>::const_iterator mod = mods.begin(); + mod != mods.end(); ++mod) { + size_t const alength = strlen(mod->Alias); + switch(mod->Pos) { + case PkgModifier::POSTFIX: + if (str.compare(str.length() - alength, alength, + mod->Alias, 0, alength) != 0) + continue; + str.erase(str.length() - alength); + modID = mod->ID; + break; + case PkgModifier::PREFIX: + continue; + case PkgModifier::NONE: + continue; + } + modifierPresent = true; + break; + } + if (modifierPresent == true) { + bool const errors = showErrors(false); + bool const found = PackageFrom(PACKAGENAME, pci, Cache, cmdline); + showErrors(errors); + if (found == true) { + modID = fallback; + return true; + } + } + return PackageFrom(CacheSetHelper::PACKAGENAME, pci, Cache, str); +} + /*}}}*/ +// FromModifierCommandLine - helper doing the work for VER:GroupedFromCommandLine /*{{{*/ +bool VersionContainerInterface::FromModifierCommandLine(unsigned short &modID, + VersionContainerInterface * const vci, + pkgCacheFile &Cache, const char * cmdline, + std::list<Modifier> const &mods, + CacheSetHelper &helper) { + CacheSetHelper::VerSelector select = CacheSetHelper::NEWEST; + std::string str = cmdline; + if (unlikely(str.empty() == true)) + return false; + bool modifierPresent = false; + unsigned short fallback = modID; + for (std::list<Modifier>::const_iterator mod = mods.begin(); + mod != mods.end(); ++mod) { + if (modID == fallback && mod->ID == fallback) + select = mod->SelectVersion; + size_t const alength = strlen(mod->Alias); + switch(mod->Pos) { + case Modifier::POSTFIX: + if (str.length() <= alength || + str.compare(str.length() - alength, alength, mod->Alias, 0, alength) != 0) + continue; + str.erase(str.length() - alength); + modID = mod->ID; + select = mod->SelectVersion; + break; + case Modifier::PREFIX: + continue; + case Modifier::NONE: + continue; + } + modifierPresent = true; + break; + } + if (modifierPresent == true) { + bool const errors = helper.showErrors(false); + bool const found = VersionContainerInterface::FromString(vci, Cache, cmdline, select, helper, true); + helper.showErrors(errors); + if (found == true) { + modID = fallback; + return true; + } + } + return FromString(vci, Cache, str, select, helper); +} + /*}}}*/ +// FromCommandLine - Return all versions specified on commandline /*{{{*/ +bool VersionContainerInterface::FromCommandLine(VersionContainerInterface * const vci, + pkgCacheFile &Cache, const char **cmdline, + CacheSetHelper::VerSelector const fallback, + CacheSetHelper &helper) { + bool found = false; + for (const char **I = cmdline; *I != 0; ++I) + found |= VersionContainerInterface::FromString(vci, Cache, *I, fallback, helper); + return found; +} + /*}}}*/ +// FromString - Returns all versions spedcified by a string /*{{{*/ +bool VersionContainerInterface::FromString(VersionContainerInterface * const vci, + pkgCacheFile &Cache, std::string pkg, + CacheSetHelper::VerSelector const fallback, + CacheSetHelper &helper, + bool const onlyFromName) { + std::string ver; + bool verIsRel = false; + size_t const vertag = pkg.find_last_of("/="); + if (vertag != std::string::npos) { + ver = pkg.substr(vertag+1); + verIsRel = (pkg[vertag] == '/'); + pkg.erase(vertag); + } + + PackageSet pkgset; + if (onlyFromName == false) + helper.PackageFrom(CacheSetHelper::STRING, &pkgset, Cache, pkg); + else { + helper.PackageFrom(CacheSetHelper::PACKAGENAME, &pkgset, Cache, pkg); + } + + bool errors = true; + if (pkgset.getConstructor() != CacheSetHelper::UNKNOWN) + errors = helper.showErrors(false); + + bool found = false; + for (PackageSet::const_iterator P = pkgset.begin(); + P != pkgset.end(); ++P) { + if (vertag == std::string::npos) { + found |= VersionContainerInterface::FromPackage(vci, Cache, P, fallback, helper); + continue; + } + pkgCache::VerIterator V; + if (ver == "installed") + V = getInstalledVer(Cache, P, helper); + else if (ver == "candidate") + V = getCandidateVer(Cache, P, helper); + else if (ver == "newest") { + if (P->VersionList != 0) + V = P.VersionList(); + else + V = helper.canNotGetVersion(CacheSetHelper::NEWEST, Cache, P); + } else { + pkgVersionMatch Match(ver, (verIsRel == true ? pkgVersionMatch::Release : + pkgVersionMatch::Version)); + V = Match.Find(P); + helper.setLastVersionMatcher(ver); + if (V.end()) { + if (verIsRel == true) + V = helper.canNotGetVersion(CacheSetHelper::RELEASE, Cache, P); + else + V = helper.canNotGetVersion(CacheSetHelper::VERSIONNUMBER, Cache, P); + } + } + if (V.end() == true) + continue; + if (verIsRel == true) + helper.showVersionSelection(P, V, CacheSetHelper::RELEASE, ver); + else + helper.showVersionSelection(P, V, CacheSetHelper::VERSIONNUMBER, ver); + vci->insert(V); + found = true; + } + if (pkgset.getConstructor() != CacheSetHelper::UNKNOWN) + helper.showErrors(errors); + return found; +} + /*}}}*/ +// FromPackage - versions from package based on fallback /*{{{*/ +bool VersionContainerInterface::FromPackage(VersionContainerInterface * const vci, + pkgCacheFile &Cache, + pkgCache::PkgIterator const &P, + CacheSetHelper::VerSelector const fallback, + CacheSetHelper &helper) { + pkgCache::VerIterator V; + bool showErrors; + bool found = false; + switch(fallback) { + case CacheSetHelper::ALL: + if (P->VersionList != 0) + for (V = P.VersionList(); V.end() != true; ++V) + found |= vci->insert(V); + else + helper.canNotFindVersion(CacheSetHelper::ALL, vci, Cache, P); + break; + case CacheSetHelper::CANDANDINST: + found |= vci->insert(getInstalledVer(Cache, P, helper)); + found |= vci->insert(getCandidateVer(Cache, P, helper)); + break; + case CacheSetHelper::CANDIDATE: + found |= vci->insert(getCandidateVer(Cache, P, helper)); + break; + case CacheSetHelper::INSTALLED: + found |= vci->insert(getInstalledVer(Cache, P, helper)); + break; + case CacheSetHelper::CANDINST: + showErrors = helper.showErrors(false); + V = getCandidateVer(Cache, P, helper); + if (V.end() == true) + V = getInstalledVer(Cache, P, helper); + helper.showErrors(showErrors); + if (V.end() == false) + found |= vci->insert(V); + else + helper.canNotFindVersion(CacheSetHelper::CANDINST, vci, Cache, P); + break; + case CacheSetHelper::INSTCAND: + showErrors = helper.showErrors(false); + V = getInstalledVer(Cache, P, helper); + if (V.end() == true) + V = getCandidateVer(Cache, P, helper); + helper.showErrors(showErrors); + if (V.end() == false) + found |= vci->insert(V); + else + helper.canNotFindVersion(CacheSetHelper::INSTCAND, vci, Cache, P); + break; + case CacheSetHelper::NEWEST: + if (P->VersionList != 0) + found |= vci->insert(P.VersionList()); + else + helper.canNotFindVersion(CacheSetHelper::NEWEST, vci, Cache, P); + break; + case CacheSetHelper::RELEASE: + { + pkgVersionMatch Match(helper.getLastVersionMatcher(), pkgVersionMatch::Release); + V = Match.Find(P); + if (not V.end()) + found |= vci->insert(V); + else + helper.canNotFindVersion(CacheSetHelper::RELEASE, vci, Cache, P); + } + break; + case CacheSetHelper::VERSIONNUMBER: + { + pkgVersionMatch Match(helper.getLastVersionMatcher(), pkgVersionMatch::Version); + V = Match.Find(P); + if (not V.end()) + found |= vci->insert(V); + else + helper.canNotFindVersion(CacheSetHelper::VERSIONNUMBER, vci, Cache, P); + } + break; + } + return found; +} + /*}}}*/ +// FromDependency - versions satisfying a given dependency /*{{{*/ +bool VersionContainerInterface::FromDependency(VersionContainerInterface * const vci, + pkgCacheFile &Cache, + pkgCache::DepIterator const &D, + CacheSetHelper::VerSelector const selector, + CacheSetHelper &helper) +{ + bool found = false; + auto const insertVersion = [&](pkgCache::PkgIterator const &TP, pkgCache::VerIterator const &TV) { + if (not TV.end() && not D.IsIgnorable(TP) && D.IsSatisfied(TV)) + { + vci->insert(TV); + found = true; + } + }; + pkgCache::PkgIterator const T = D.TargetPkg(); + auto const insertAllTargetVersions = [&](auto const &getTargetVersion) { + insertVersion(T, getTargetVersion(T)); + for (auto Prv = T.ProvidesList(); not Prv.end(); ++Prv) + { + if (D.IsIgnorable(Prv)) + continue; + auto const OP = Prv.OwnerPkg(); + auto const TV = getTargetVersion(OP); + if (Prv.OwnerVer() == TV && D.IsSatisfied(Prv)) + { + vci->insert(TV); + found = true; + } + } + return found; + }; + switch(selector) { + case CacheSetHelper::ALL: + for (auto Ver = T.VersionList(); not Ver.end(); ++Ver) + { + insertVersion(T, Ver); + for (pkgCache::PrvIterator Prv = T.ProvidesList(); not Prv.end(); ++Prv) + if (not D.IsIgnorable(Prv)) + { + vci->insert(Prv.OwnerVer()); + found = true; + } + } + return found; + case CacheSetHelper::CANDANDINST: + found = FromDependency(vci, Cache, D, CacheSetHelper::CANDIDATE, helper); + found &= FromDependency(vci, Cache, D, CacheSetHelper::INSTALLED, helper); + return found; + case CacheSetHelper::CANDIDATE: + // skip looking if we have already cached that we will find nothing + if (((Cache[D] & pkgDepCache::DepCVer) == 0) != D.IsNegative()) + return found; + return insertAllTargetVersions([&](pkgCache::PkgIterator const &OP) { return Cache[OP].CandidateVerIter(Cache); }); + case CacheSetHelper::INSTALLED: + return insertAllTargetVersions([&](pkgCache::PkgIterator const &OP) { return OP.CurrentVer(); }); + case CacheSetHelper::CANDINST: + return FromDependency(vci, Cache, D, CacheSetHelper::CANDIDATE, helper) || + FromDependency(vci, Cache, D, CacheSetHelper::INSTALLED, helper); + case CacheSetHelper::INSTCAND: + return FromDependency(vci, Cache, D, CacheSetHelper::INSTALLED, helper) || + FromDependency(vci, Cache, D, CacheSetHelper::CANDIDATE, helper); + case CacheSetHelper::NEWEST: + return insertAllTargetVersions([&](pkgCache::PkgIterator const &OP) { return OP.VersionList(); }); + case CacheSetHelper::RELEASE: + case CacheSetHelper::VERSIONNUMBER: + // both make no sense here, so always false + return false; + } + return found; +} + /*}}}*/ +// getCandidateVer - Returns the candidate version of the given package /*{{{*/ +pkgCache::VerIterator VersionContainerInterface::getCandidateVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) { + pkgCache::VerIterator Cand; + if (Cache.IsDepCacheBuilt() == true) { + Cand = Cache[Pkg].CandidateVerIter(Cache); + } else if (unlikely(Cache.GetPolicy() == nullptr)) { + return pkgCache::VerIterator(Cache); + } else { + Cand = Cache.GetPolicy()->GetCandidateVer(Pkg); + } + if (Cand.end() == true) + return helper.canNotGetVersion(CacheSetHelper::CANDIDATE, Cache, Pkg); + return Cand; +} + /*}}}*/ +// getInstalledVer - Returns the installed version of the given package /*{{{*/ +pkgCache::VerIterator VersionContainerInterface::getInstalledVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) { + if (Pkg->CurrentVer == 0) + return helper.canNotGetVersion(CacheSetHelper::INSTALLED, Cache, Pkg); + return Pkg.CurrentVer(); +} + /*}}}*/ + +// canNotFindPackage - with the given selector and pattern /*{{{*/ +void CacheSetHelper::canNotFindPackage(enum PkgSelector const select, + PackageContainerInterface * const pci, pkgCacheFile &Cache, + std::string const &pattern) { + switch (select) { + case REGEX: canNotFindRegEx(pci, Cache, pattern); break; + case TASK: canNotFindTask(pci, Cache, pattern); break; + case FNMATCH: canNotFindFnmatch(pci, Cache, pattern); break; + case PACKAGENAME: canNotFindPackage(pci, Cache, pattern); break; + case STRING: canNotFindPackage(pci, Cache, pattern); break; + case PATTERN: canNotFindPackage(pci, Cache, pattern); break; + case UNKNOWN: break; + } +} +// canNotFindTask - handle the case no package is found for a task /*{{{*/ +void CacheSetHelper::canNotFindTask(PackageContainerInterface * const /*pci*/, pkgCacheFile &/*Cache*/, std::string pattern) { + if (ShowError == true) + _error->Insert(ErrorType, _("Couldn't find task '%s'"), pattern.c_str()); +} + /*}}}*/ +// canNotFindRegEx - handle the case no package is found by a regex /*{{{*/ +void CacheSetHelper::canNotFindRegEx(PackageContainerInterface * const /*pci*/, pkgCacheFile &/*Cache*/, std::string pattern) { + if (ShowError == true) + _error->Insert(ErrorType, _("Couldn't find any package by regex '%s'"), pattern.c_str()); +} + /*}}}*/ +// canNotFindFnmatch - handle the case no package is found by a fnmatch /*{{{*/ + void CacheSetHelper::canNotFindFnmatch(PackageContainerInterface * const /*pci*/, pkgCacheFile &/*Cache*/, std::string pattern) { + if (ShowError == true) + _error->Insert(ErrorType, _("Couldn't find any package by glob '%s'"), pattern.c_str()); +} + /*}}}*/ +// canNotFindPackage - handle the case no package is found from a string/*{{{*/ +void CacheSetHelper::canNotFindPackage(PackageContainerInterface * const /*pci*/, pkgCacheFile &/*Cache*/, std::string const &/*str*/) { +} + /*}}}*/ + /*}}}*/ +// canNotFindPkgName - handle the case no package has this name /*{{{*/ +pkgCache::PkgIterator CacheSetHelper::canNotFindPkgName(pkgCacheFile &Cache, + std::string const &str) { + if (ShowError == true) + _error->Insert(ErrorType, _("Unable to locate package %s"), str.c_str()); + return pkgCache::PkgIterator(Cache, 0); +} + /*}}}*/ +// canNotFindVersion - for package by selector /*{{{*/ +void CacheSetHelper::canNotFindVersion(enum VerSelector const select, VersionContainerInterface * const vci, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) +{ + switch (select) { + case ALL: canNotFindAllVer(vci, Cache, Pkg); break; + case INSTCAND: canNotFindInstCandVer(vci, Cache, Pkg); break; + case CANDINST: canNotFindCandInstVer(vci, Cache, Pkg); break; + case NEWEST: canNotFindNewestVer(Cache, Pkg); break; + case CANDIDATE: canNotFindCandidateVer(Cache, Pkg); break; + case INSTALLED: canNotFindInstalledVer(Cache, Pkg); break; + case CANDANDINST: canNotGetCandInstVer(Cache, Pkg); break; + case RELEASE: canNotGetVerFromRelease(Cache, Pkg, getLastVersionMatcher()); break; + case VERSIONNUMBER: canNotGetVerFromVersionNumber(Cache, Pkg, getLastVersionMatcher()); break; + } +} +// canNotFindAllVer /*{{{*/ +void CacheSetHelper::canNotFindAllVer(VersionContainerInterface * const /*vci*/, pkgCacheFile &/*Cache*/, + pkgCache::PkgIterator const &Pkg) { + if (ShowError == true) + _error->Insert(ErrorType, _("Can't select versions from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str()); +} + /*}}}*/ +// canNotFindInstCandVer /*{{{*/ +void CacheSetHelper::canNotFindInstCandVer(VersionContainerInterface * const /*vci*/, pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + canNotGetInstCandVer(Cache, Pkg); +} + /*}}}*/ +// canNotFindInstCandVer /*{{{*/ +void CacheSetHelper::canNotFindCandInstVer(VersionContainerInterface * const /*vci*/, pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + canNotGetCandInstVer(Cache, Pkg); +} + /*}}}*/ + /*}}}*/ +// canNotGetVersion - for package by selector /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotGetVersion(enum VerSelector const select, pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg) { + switch (select) { + case NEWEST: return canNotFindNewestVer(Cache, Pkg); + case CANDIDATE: return canNotFindCandidateVer(Cache, Pkg); + case INSTALLED: return canNotFindInstalledVer(Cache, Pkg); + case CANDINST: return canNotGetCandInstVer(Cache, Pkg); + case INSTCAND: return canNotGetInstCandVer(Cache, Pkg); + case RELEASE: return canNotGetVerFromRelease(Cache, Pkg, getLastVersionMatcher()); + case VERSIONNUMBER: return canNotGetVerFromVersionNumber(Cache, Pkg, getLastVersionMatcher()); + case ALL: + case CANDANDINST: + // invalid in this branch + return pkgCache::VerIterator(Cache, 0); + } + return pkgCache::VerIterator(Cache, 0); +} +// canNotFindNewestVer /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotFindNewestVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + if (ShowError == true) + _error->Insert(ErrorType, _("Can't select newest version from package '%s' as it is purely virtual"), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} + /*}}}*/ +// canNotFindCandidateVer /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotFindCandidateVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + if (ShowError == true) + _error->Insert(ErrorType, _("Can't select candidate version from package %s as it has no candidate"), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} + /*}}}*/ +// canNotFindInstalledVer /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotFindInstalledVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + if (ShowError == true) + _error->Insert(ErrorType, _("Can't select installed version from package %s as it is not installed"), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} + /*}}}*/ +// canNotFindInstCandVer /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotGetInstCandVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + if (ShowError == true) + _error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} + /*}}}*/ +// canNotFindInstCandVer /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotGetCandInstVer(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg) { + if (ShowError == true) + _error->Insert(ErrorType, _("Can't select installed nor candidate version from package '%s' as it has neither of them"), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} + /*}}}*/ +// canNotFindMatchingVer /*{{{*/ +pkgCache::VerIterator CacheSetHelper::canNotGetVerFromRelease(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg, std::string const &release) { + if (ShowError == true) + _error->Insert(ErrorType, _("Release '%s' for '%s' was not found"), release.c_str(), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} +pkgCache::VerIterator CacheSetHelper::canNotGetVerFromVersionNumber(pkgCacheFile &Cache, + pkgCache::PkgIterator const &Pkg, std::string const &verstr) { + if (ShowError == true) + _error->Insert(ErrorType, _("Version '%s' for '%s' was not found"), verstr.c_str(), Pkg.FullName(true).c_str()); + return pkgCache::VerIterator(Cache, 0); +} + /*}}}*/ + /*}}}*/ +// showPackageSelection - by selector and given pattern /*{{{*/ +void CacheSetHelper::showPackageSelection(pkgCache::PkgIterator const &pkg, enum PkgSelector const select, + std::string const &pattern) { + switch (select) { + case REGEX: showRegExSelection(pkg, pattern); break; + case TASK: showTaskSelection(pkg, pattern); break; + case FNMATCH: showFnmatchSelection(pkg, pattern); break; + case PATTERN: showPatternSelection(pkg, pattern); break; + case PACKAGENAME: /* no surprises here */ break; + case STRING: /* handled by the special cases */ break; + case UNKNOWN: break; + } +} +// showTaskSelection /*{{{*/ +void CacheSetHelper::showTaskSelection(pkgCache::PkgIterator const &/*pkg*/, + std::string const &/*pattern*/) { +} + /*}}}*/ +// showRegExSelection /*{{{*/ +void CacheSetHelper::showRegExSelection(pkgCache::PkgIterator const &/*pkg*/, + std::string const &/*pattern*/) { +} + /*}}}*/ +// showFnmatchSelection /*{{{*/ +void CacheSetHelper::showFnmatchSelection(pkgCache::PkgIterator const &/*pkg*/, + std::string const &/*pattern*/) { +} + /*}}}*/ +// showPatternSelection /*{{{*/ +void CacheSetHelper::showPatternSelection(pkgCache::PkgIterator const & /*pkg*/, + std::string const & /*pattern*/) +{ +} + /*}}}*/ + /*}}}*/ +// showVersionSelection /*{{{*/ +void CacheSetHelper::showVersionSelection(pkgCache::PkgIterator const &Pkg, + pkgCache::VerIterator const &Ver, enum VerSelector const select, std::string const &pattern) { + switch (select) { + case RELEASE: + showSelectedVersion(Pkg, Ver, pattern, true); + break; + case VERSIONNUMBER: + showSelectedVersion(Pkg, Ver, pattern, false); + break; + case NEWEST: + case CANDIDATE: + case INSTALLED: + case CANDINST: + case INSTCAND: + case ALL: + case CANDANDINST: + // not really surprises, but in fact: just not implemented + break; + } +} +void CacheSetHelper::showSelectedVersion(pkgCache::PkgIterator const &/*Pkg*/, + pkgCache::VerIterator const /*Ver*/, + std::string const &/*ver*/, + bool const /*verIsRel*/) { +} + /*}}}*/ + +class CacheSetHelper::Private { +public: + std::string version_or_release; +}; +std::string CacheSetHelper::getLastVersionMatcher() const { return d->version_or_release; } +void CacheSetHelper::setLastVersionMatcher(std::string const &matcher) { d->version_or_release = matcher; } + +CacheSetHelper::CacheSetHelper(bool const ShowError, GlobalError::MsgType ErrorType) : + ShowError(ShowError), ErrorType(ErrorType), d(new Private{}) {} +CacheSetHelper::~CacheSetHelper() { delete d; } + +PackageContainerInterface::PackageContainerInterface() : ConstructedBy(CacheSetHelper::UNKNOWN), d(NULL) {} +PackageContainerInterface::PackageContainerInterface(PackageContainerInterface const &by) : PackageContainerInterface() { *this = by; } +PackageContainerInterface::PackageContainerInterface(CacheSetHelper::PkgSelector const by) : ConstructedBy(by), d(NULL) {} +PackageContainerInterface& PackageContainerInterface::operator=(PackageContainerInterface const &other) { + if (this != &other) + this->ConstructedBy = other.ConstructedBy; + return *this; +} +PackageContainerInterface::~PackageContainerInterface() {} + +PackageUniverse::PackageUniverse(pkgCache * const Owner) : _cont(Owner), d(NULL) {} +PackageUniverse::PackageUniverse(pkgCacheFile * const Owner) : _cont(Owner->GetPkgCache()), d(NULL) {} +PackageUniverse::~PackageUniverse() {} + +VersionContainerInterface::VersionContainerInterface() : d(NULL) {} +VersionContainerInterface::VersionContainerInterface(VersionContainerInterface const &other) : VersionContainerInterface() { + *this = other; +}; +VersionContainerInterface& VersionContainerInterface::operator=(VersionContainerInterface const &) { + return *this; +} + +VersionContainerInterface::~VersionContainerInterface() {} +} |