// -*- 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 <apt-pkg/aptconfiguration.h> #include <apt-pkg/cachefilter.h> #include <apt-pkg/cacheset.h> #include <apt-pkg/error.h> #include <apt-pkg/strutl.h> #include <apt-pkg/versionmatch.h> #include <apti18n.h> #include <vector> #include <regex.h> /*}}}*/ namespace APT { // FromTask - Return all packages in the cache from a specific task /*{{{*/ PackageSet PackageSet::FromTask(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) { 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 APT::PackageSet(TASK); pattern.erase(pattern.length()-1); if (unlikely(Cache.GetPkgCache() == 0 || Cache.GetDepCache() == 0)) return APT::PackageSet(TASK); PackageSet pkgset(TASK); // get the records pkgRecords Recs(Cache); // build regexp for the task regex_t Pattern; char S[300]; snprintf(S, sizeof(S), "^Task:.*[, ]%s([, ]|$)", pattern.c_str()); if(regcomp(&Pattern,S, REG_EXTENDED | REG_NOSUB | REG_NEWLINE) != 0) { _error->Error("Failed to compile task regexp"); return pkgset; } for (pkgCache::GrpIterator Grp = Cache->GrpBegin(); Grp.end() == false; ++Grp) { pkgCache::PkgIterator Pkg = Grp.FindPkg(arch); if (Pkg.end() == true) continue; pkgCache::VerIterator ver = Cache[Pkg].CandidateVerIter(Cache); if(ver.end() == true) continue; pkgRecords::Parser &parser = Recs.Lookup(ver.FileList()); const char *start, *end; parser.GetRec(start,end); unsigned int const length = end - start; char buf[length]; strncpy(buf, start, length); buf[length-1] = '\0'; if (regexec(&Pattern, buf, 0, 0, 0) != 0) continue; pkgset.insert(Pkg); } regfree(&Pattern); if (pkgset.empty() == true) return helper.canNotFindTask(Cache, pattern); helper.showTaskSelection(pkgset, pattern); return pkgset; } /*}}}*/ // FromRegEx - Return all packages in the cache matching a pattern /*{{{*/ PackageSet PackageSet::FromRegEx(pkgCacheFile &Cache, std::string pattern, CacheSetHelper &helper) { static const char * const isregex = ".?+*|[^$"; if (pattern.find_first_of(isregex) == std::string::npos) return PackageSet(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 PackageSet(REGEX); APT::CacheFilter::PackageNameMatchesRegEx regexfilter(pattern); PackageSet pkgset(REGEX); 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) { std::vector<std::string> archs = APT::Configuration::getArchitectures(); for (std::vector<std::string>::const_iterator a = archs.begin(); a != archs.end() && Pkg.end() != true; ++a) Pkg = Grp.FindPkg(*a); } if (Pkg.end() == true) continue; } pkgset.insert(Pkg); } if (pkgset.empty() == true) return helper.canNotFindRegEx(Cache, pattern); helper.showRegExSelection(pkgset, pattern); return pkgset; } /*}}}*/ // FromName - Returns the package defined by this string /*{{{*/ pkgCache::PkgIterator PackageSet::FromName(pkgCacheFile &Cache, std::string const &str, CacheSetHelper &helper) { std::string pkg = str; size_t archfound = pkg.find_last_of(':'); std::string arch; if (archfound != std::string::npos) { arch = pkg.substr(archfound+1); pkg.erase(archfound); } if (Cache.GetPkgCache() == 0) return pkgCache::PkgIterator(Cache, 0); pkgCache::PkgIterator Pkg(Cache, 0); if (arch.empty() == true) { pkgCache::GrpIterator Grp = Cache.GetPkgCache()->FindGrp(pkg); if (Grp.end() == false) Pkg = Grp.FindPreferredPkg(); } else Pkg = Cache.GetPkgCache()->FindPkg(pkg, arch); if (Pkg.end() == true) return helper.canNotFindPkgName(Cache, str); return Pkg; } /*}}}*/ // GroupedFromCommandLine - Return all versions specified on commandline/*{{{*/ std::map<unsigned short, PackageSet> PackageSet::GroupedFromCommandLine( pkgCacheFile &Cache, const char **cmdline, std::list<PackageSet::Modifier> const &mods, unsigned short const &fallback, CacheSetHelper &helper) { std::map<unsigned short, PackageSet> pkgsets; for (const char **I = cmdline; *I != 0; ++I) { unsigned short modID = fallback; std::string str = *I; bool modifierPresent = false; for (std::list<PackageSet::Modifier>::const_iterator mod = mods.begin(); mod != mods.end(); ++mod) { size_t const alength = strlen(mod->Alias); switch(mod->Pos) { case PackageSet::Modifier::POSTFIX: if (str.compare(str.length() - alength, alength, mod->Alias, 0, alength) != 0) continue; str.erase(str.length() - alength); modID = mod->ID; break; case PackageSet::Modifier::PREFIX: continue; case PackageSet::Modifier::NONE: continue; } modifierPresent = true; break; } if (modifierPresent == true) { bool const errors = helper.showErrors(false); pkgCache::PkgIterator Pkg = FromName(Cache, *I, helper); helper.showErrors(errors); if (Pkg.end() == false) { pkgsets[fallback].insert(Pkg); continue; } } pkgsets[modID].insert(PackageSet::FromString(Cache, str, helper)); } return pkgsets; } /*}}}*/ // FromCommandLine - Return all packages specified on commandline /*{{{*/ PackageSet PackageSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline, CacheSetHelper &helper) { PackageSet pkgset; for (const char **I = cmdline; *I != 0; ++I) { PackageSet pset = FromString(Cache, *I, helper); pkgset.insert(pset.begin(), pset.end()); } return pkgset; } /*}}}*/ // FromString - Return all packages matching a specific string /*{{{*/ PackageSet PackageSet::FromString(pkgCacheFile &Cache, std::string const &str, CacheSetHelper &helper) { _error->PushToStack(); PackageSet pkgset; pkgCache::PkgIterator Pkg = FromName(Cache, str, helper); if (Pkg.end() == false) pkgset.insert(Pkg); else { pkgset = FromTask(Cache, str, helper); if (pkgset.empty() == true) { pkgset = FromRegEx(Cache, str, helper); if (pkgset.empty() == true) pkgset = helper.canNotFindPackage(Cache, str); } } if (pkgset.empty() == false) _error->RevertToStack(); else _error->MergeWithStack(); return pkgset; } /*}}}*/ // GroupedFromCommandLine - Return all versions specified on commandline/*{{{*/ std::map<unsigned short, VersionSet> VersionSet::GroupedFromCommandLine( pkgCacheFile &Cache, const char **cmdline, std::list<VersionSet::Modifier> const &mods, unsigned short const &fallback, CacheSetHelper &helper) { std::map<unsigned short, VersionSet> versets; for (const char **I = cmdline; *I != 0; ++I) { unsigned short modID = fallback; VersionSet::Version select = VersionSet::NEWEST; std::string str = *I; bool modifierPresent = false; for (std::list<VersionSet::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 VersionSet::Modifier::POSTFIX: if (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 VersionSet::Modifier::PREFIX: continue; case VersionSet::Modifier::NONE: continue; } modifierPresent = true; break; } if (modifierPresent == true) { bool const errors = helper.showErrors(false); VersionSet const vset = VersionSet::FromString(Cache, std::string(*I), select, helper, true); helper.showErrors(errors); if (vset.empty() == false) { versets[fallback].insert(vset); continue; } } versets[modID].insert(VersionSet::FromString(Cache, str, select , helper)); } return versets; } /*}}}*/ // FromCommandLine - Return all versions specified on commandline /*{{{*/ APT::VersionSet VersionSet::FromCommandLine(pkgCacheFile &Cache, const char **cmdline, APT::VersionSet::Version const &fallback, CacheSetHelper &helper) { VersionSet verset; for (const char **I = cmdline; *I != 0; ++I) verset.insert(VersionSet::FromString(Cache, *I, fallback, helper)); return verset; } /*}}}*/ // FromString - Returns all versions spedcified by a string /*{{{*/ APT::VersionSet VersionSet::FromString(pkgCacheFile &Cache, std::string pkg, APT::VersionSet::Version const &fallback, CacheSetHelper &helper, bool const &onlyFromName) { std::string ver; bool verIsRel = false; size_t const vertag = pkg.find_last_of("/="); if (vertag != string::npos) { ver = pkg.substr(vertag+1); verIsRel = (pkg[vertag] == '/'); pkg.erase(vertag); } PackageSet pkgset; if (onlyFromName == false) pkgset = PackageSet::FromString(Cache, pkg, helper); else { pkgset.insert(PackageSet::FromName(Cache, pkg, helper)); } VersionSet verset; bool errors = true; if (pkgset.getConstructor() != PackageSet::UNKNOWN) errors = helper.showErrors(false); for (PackageSet::const_iterator P = pkgset.begin(); P != pkgset.end(); ++P) { if (vertag == string::npos) { verset.insert(VersionSet::FromPackage(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.canNotFindNewestVer(Cache, P); } else { pkgVersionMatch Match(ver, (verIsRel == true ? pkgVersionMatch::Release : pkgVersionMatch::Version)); V = Match.Find(P); if (V.end() == true) { if (verIsRel == true) _error->Error(_("Release '%s' for '%s' was not found"), ver.c_str(), P.FullName(true).c_str()); else _error->Error(_("Version '%s' for '%s' was not found"), ver.c_str(), P.FullName(true).c_str()); continue; } } if (V.end() == true) continue; helper.showSelectedVersion(P, V, ver, verIsRel); verset.insert(V); } if (pkgset.getConstructor() != PackageSet::UNKNOWN) helper.showErrors(errors); return verset; } /*}}}*/ // FromPackage - versions from package based on fallback /*{{{*/ VersionSet VersionSet::FromPackage(pkgCacheFile &Cache, pkgCache::PkgIterator const &P, VersionSet::Version const &fallback, CacheSetHelper &helper) { VersionSet verset; pkgCache::VerIterator V; bool showErrors; switch(fallback) { case VersionSet::ALL: if (P->VersionList != 0) for (V = P.VersionList(); V.end() != true; ++V) verset.insert(V); else verset.insert(helper.canNotFindAllVer(Cache, P)); break; case VersionSet::CANDANDINST: verset.insert(getInstalledVer(Cache, P, helper)); verset.insert(getCandidateVer(Cache, P, helper)); break; case VersionSet::CANDIDATE: verset.insert(getCandidateVer(Cache, P, helper)); break; case VersionSet::INSTALLED: verset.insert(getInstalledVer(Cache, P, helper)); break; case VersionSet::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) verset.insert(V); else verset.insert(helper.canNotFindInstCandVer(Cache, P)); break; case VersionSet::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) verset.insert(V); else verset.insert(helper.canNotFindInstCandVer(Cache, P)); break; case VersionSet::NEWEST: if (P->VersionList != 0) verset.insert(P.VersionList()); else verset.insert(helper.canNotFindNewestVer(Cache, P)); break; } return verset; } /*}}}*/ // getCandidateVer - Returns the candidate version of the given package /*{{{*/ pkgCache::VerIterator VersionSet::getCandidateVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) { pkgCache::VerIterator Cand; if (Cache.IsPolicyBuilt() == true || Cache.IsDepCacheBuilt() == false) { if (unlikely(Cache.GetPolicy() == 0)) return pkgCache::VerIterator(Cache); Cand = Cache.GetPolicy()->GetCandidateVer(Pkg); } else { Cand = Cache[Pkg].CandidateVerIter(Cache); } if (Cand.end() == true) return helper.canNotFindCandidateVer(Cache, Pkg); return Cand; } /*}}}*/ // getInstalledVer - Returns the installed version of the given package /*{{{*/ pkgCache::VerIterator VersionSet::getInstalledVer(pkgCacheFile &Cache, pkgCache::PkgIterator const &Pkg, CacheSetHelper &helper) { if (Pkg->CurrentVer == 0) return helper.canNotFindInstalledVer(Cache, Pkg); return Pkg.CurrentVer(); } /*}}}*/ // 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); } /*}}}*/ // canNotFindTask - handle the case no package is found for a task /*{{{*/ PackageSet CacheSetHelper::canNotFindTask(pkgCacheFile &Cache, std::string pattern) { if (ShowError == true) _error->Insert(ErrorType, _("Couldn't find task '%s'"), pattern.c_str()); return PackageSet(); } /*}}}*/ // canNotFindRegEx - handle the case no package is found by a regex /*{{{*/ PackageSet CacheSetHelper::canNotFindRegEx(pkgCacheFile &Cache, std::string pattern) { if (ShowError == true) _error->Insert(ErrorType, _("Couldn't find any package by regex '%s'"), pattern.c_str()); return PackageSet(); } /*}}}*/ // canNotFindPackage - handle the case no package is found from a string/*{{{*/ PackageSet CacheSetHelper::canNotFindPackage(pkgCacheFile &Cache, std::string const &str) { return PackageSet(); } /*}}}*/ // canNotFindAllVer /*{{{*/ VersionSet CacheSetHelper::canNotFindAllVer(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()); return VersionSet(); } /*}}}*/ // canNotFindInstCandVer /*{{{*/ VersionSet CacheSetHelper::canNotFindInstCandVer(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 VersionSet(); } /*}}}*/ // canNotFindInstCandVer /*{{{*/ VersionSet CacheSetHelper::canNotFindCandInstVer(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 VersionSet(); } /*}}}*/ // 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); } /*}}}*/ }