diff options
Diffstat (limited to 'apt-private/private-output.cc')
| -rw-r--r-- | apt-private/private-output.cc | 801 |
1 files changed, 801 insertions, 0 deletions
diff --git a/apt-private/private-output.cc b/apt-private/private-output.cc new file mode 100644 index 0000000..eb9a34a --- /dev/null +++ b/apt-private/private-output.cc @@ -0,0 +1,801 @@ +// Include files /*{{{*/ +#include <config.h> + +#include <apt-pkg/cachefile.h> +#include <apt-pkg/configuration.h> +#include <apt-pkg/depcache.h> +#include <apt-pkg/error.h> +#include <apt-pkg/pkgcache.h> +#include <apt-pkg/pkgrecords.h> +#include <apt-pkg/policy.h> +#include <apt-pkg/strutl.h> + +#include <apt-private/private-cachefile.h> +#include <apt-private/private-output.h> + +#include <iomanip> +#include <iostream> +#include <langinfo.h> +#include <regex.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <unistd.h> + +#include <sstream> + +#include <apti18n.h> + /*}}}*/ + +using namespace std; + +std::ostream c0out(0); +std::ostream c1out(0); +std::ostream c2out(0); +std::ofstream devnull("/dev/null"); + + +unsigned int ScreenWidth = 80 - 1; /* - 1 for the cursor */ + +// SigWinch - Window size change signal handler /*{{{*/ +// --------------------------------------------------------------------- +/* */ +static void SigWinch(int) +{ + // Riped from GNU ls +#ifdef TIOCGWINSZ + struct winsize ws; + + if (ioctl(1, TIOCGWINSZ, &ws) != -1 && ws.ws_col >= 5) + ScreenWidth = ws.ws_col - 1; +#endif +} + /*}}}*/ +bool InitOutput(std::basic_streambuf<char> * const out) /*{{{*/ +{ + if (!isatty(STDOUT_FILENO) && _config->FindI("quiet", -1) == -1) + _config->Set("quiet","1"); + + c0out.rdbuf(out); + c1out.rdbuf(out); + c2out.rdbuf(out); + if (_config->FindI("quiet",0) > 0) + c0out.rdbuf(devnull.rdbuf()); + if (_config->FindI("quiet",0) > 1) + c1out.rdbuf(devnull.rdbuf()); + + // deal with window size changes + auto cols = getenv("COLUMNS"); + if (cols != nullptr) + { + char * colends; + auto const sw = strtoul(cols, &colends, 10); + if (*colends != '\0' || sw == 0) + { + _error->Warning("Environment variable COLUMNS was ignored as it has an invalid value: \"%s\"", cols); + cols = nullptr; + } + else + ScreenWidth = sw; + } + if (cols == nullptr) + { + signal(SIGWINCH,SigWinch); + SigWinch(0); + } + + if(!isatty(1)) + { + _config->Set("APT::Color", "false"); + _config->Set("APT::Color::Highlight", ""); + _config->Set("APT::Color::Neutral", ""); + } else { + // Colors + _config->CndSet("APT::Color::Highlight", "\x1B[32m"); + _config->CndSet("APT::Color::Neutral", "\x1B[0m"); + + _config->CndSet("APT::Color::Red", "\x1B[31m"); + _config->CndSet("APT::Color::Green", "\x1B[32m"); + _config->CndSet("APT::Color::Yellow", "\x1B[33m"); + _config->CndSet("APT::Color::Blue", "\x1B[34m"); + _config->CndSet("APT::Color::Magenta", "\x1B[35m"); + _config->CndSet("APT::Color::Cyan", "\x1B[36m"); + _config->CndSet("APT::Color::White", "\x1B[37m"); + } + + return true; +} + /*}}}*/ +static std::string GetArchiveSuite(pkgCacheFile &/*CacheFile*/, pkgCache::VerIterator ver) /*{{{*/ +{ + std::string suite = ""; + if (ver && ver.FileList()) + { + pkgCache::VerFileIterator VF = ver.FileList(); + for (; VF.end() == false ; ++VF) + { + if(VF.File() == NULL || VF.File().Archive() == NULL) + suite = suite + "," + _("unknown"); + else + suite = suite + "," + VF.File().Archive(); + //suite = VF.File().Archive(); + } + suite = suite.erase(0, 1); + } + return suite; +} + /*}}}*/ +static std::string GetFlagsStr(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/ +{ + pkgDepCache *DepCache = CacheFile.GetDepCache(); + pkgDepCache::StateCache &state = (*DepCache)[P]; + + std::string flags_str; + if (state.NowBroken()) + flags_str = "B"; + if (P.CurrentVer() && state.Upgradable() && state.CandidateVer != NULL) + flags_str = "g"; + else if (P.CurrentVer() != NULL) + flags_str = "i"; + else + flags_str = "-"; + return flags_str; +} + /*}}}*/ +static std::string GetCandidateVersion(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/ +{ + pkgPolicy *policy = CacheFile.GetPolicy(); + pkgCache::VerIterator cand = policy->GetCandidateVer(P); + + return cand ? cand.VerStr() : "(none)"; +} + /*}}}*/ +static std::string GetInstalledVersion(pkgCacheFile &/*CacheFile*/, pkgCache::PkgIterator P)/*{{{*/ +{ + pkgCache::VerIterator inst = P.CurrentVer(); + + return inst ? inst.VerStr() : "(none)"; +} + /*}}}*/ +static std::string GetVersion(pkgCacheFile &/*CacheFile*/, pkgCache::VerIterator V)/*{{{*/ +{ + pkgCache::PkgIterator P = V.ParentPkg(); + if (V == P.CurrentVer()) + { + std::string inst_str = DeNull(V.VerStr()); +#if 0 // FIXME: do we want this or something like this? + pkgDepCache *DepCache = CacheFile.GetDepCache(); + pkgDepCache::StateCache &state = (*DepCache)[P]; + if (state.Upgradable()) + return "**"+inst_str; +#endif + return inst_str; + } + + if(V) + return DeNull(V.VerStr()); + return "(none)"; +} + /*}}}*/ +static std::string GetArchitecture(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/ +{ + if (P->CurrentVer == 0) + { + pkgDepCache * const DepCache = CacheFile.GetDepCache(); + pkgDepCache::StateCache const &state = (*DepCache)[P]; + if (state.CandidateVer != NULL) + { + pkgCache::VerIterator const CandV(CacheFile, state.CandidateVer); + return CandV.Arch(); + } + else + { + pkgCache::VerIterator const V = P.VersionList(); + if (V.end() == false) + return V.Arch(); + else + return P.Arch(); + } + } + else + return P.CurrentVer().Arch(); +} + /*}}}*/ +static std::string GetShortDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/ +{ + pkgPolicy *policy = CacheFile.GetPolicy(); + + pkgCache::VerIterator ver; + if (P.CurrentVer()) + ver = P.CurrentVer(); + else + ver = policy->GetCandidateVer(P); + + std::string ShortDescription = "(none)"; + if(ver) + { + pkgCache::DescIterator const Desc = ver.TranslatedDescription(); + if (Desc.end() == false) + { + pkgRecords::Parser & parser = records.Lookup(Desc.FileList()); + ShortDescription = parser.ShortDesc(); + } + } + return ShortDescription; +} + /*}}}*/ +static std::string GetLongDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/ +{ + pkgPolicy *policy = CacheFile.GetPolicy(); + + pkgCache::VerIterator ver; + if (P->CurrentVer != 0) + ver = P.CurrentVer(); + else + ver = policy->GetCandidateVer(P); + + std::string const EmptyDescription = "(none)"; + if(ver.end() == true) + return EmptyDescription; + + pkgCache::DescIterator const Desc = ver.TranslatedDescription(); + if (Desc.end() == false) + { + pkgRecords::Parser & parser = records.Lookup(Desc.FileList()); + std::string const longdesc = parser.LongDesc(); + if (longdesc.empty() == false) + return SubstVar(longdesc, "\n ", "\n "); + } + return EmptyDescription; +} + /*}}}*/ +void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records, /*{{{*/ + pkgCache::VerIterator const &V, std::ostream &out, + std::string const &format) +{ + pkgCache::PkgIterator const P = V.ParentPkg(); + pkgDepCache * const DepCache = CacheFile.GetDepCache(); + pkgDepCache::StateCache const &state = (*DepCache)[P]; + + std::string output; + if (_config->FindB("APT::Cmd::use-format", false)) + output = _config->Find("APT::Cmd::format", "${db::Status-Abbrev} ${Package} ${Version} ${Origin} ${Description}"); + else + output = format; + + // FIXME: some of these names are really icky – and all is nowhere documented + output = SubstVar(output, "${db::Status-Abbrev}", GetFlagsStr(CacheFile, P)); + output = SubstVar(output, "${Package}", P.Name()); + std::string const ArchStr = GetArchitecture(CacheFile, P); + output = SubstVar(output, "${Architecture}", ArchStr); + std::string const InstalledVerStr = GetInstalledVersion(CacheFile, P); + output = SubstVar(output, "${installed:Version}", InstalledVerStr); + std::string const CandidateVerStr = GetCandidateVersion(CacheFile, P); + output = SubstVar(output, "${candidate:Version}", CandidateVerStr); + std::string const VersionStr = GetVersion(CacheFile, V); + output = SubstVar(output, "${Version}", VersionStr); + output = SubstVar(output, "${Origin}", GetArchiveSuite(CacheFile, V)); + + std::string StatusStr = ""; + if (P->CurrentVer != 0) + { + if (P.CurrentVer() == V) + { + if (state.Upgradable() && state.CandidateVer != NULL) + strprintf(StatusStr, _("[installed,upgradable to: %s]"), + CandidateVerStr.c_str()); + else if (V.Downloadable() == false) + StatusStr = _("[installed,local]"); + else if(V.Automatic() == true && state.Garbage == true) + StatusStr = _("[installed,auto-removable]"); + else if ((state.Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto) + StatusStr = _("[installed,automatic]"); + else + StatusStr = _("[installed]"); + } + else if (state.CandidateVer == V && state.Upgradable()) + strprintf(StatusStr, _("[upgradable from: %s]"), + InstalledVerStr.c_str()); + } + else if (V.ParentPkg()->CurrentState == pkgCache::State::ConfigFiles) + StatusStr = _("[residual-config]"); + output = SubstVar(output, "${apt:Status}", StatusStr); + output = SubstVar(output, "${color:highlight}", _config->Find("APT::Color::Highlight", "")); + output = SubstVar(output, "${color:neutral}", _config->Find("APT::Color::Neutral", "")); + output = SubstVar(output, "${Description}", GetShortDescription(CacheFile, records, P)); + if (output.find("${LongDescription}") != string::npos) + output = SubstVar(output, "${LongDescription}", GetLongDescription(CacheFile, records, P)); + output = SubstVar(output, "${ }${ }", "${ }"); + output = SubstVar(output, "${ }\n", "\n"); + output = SubstVar(output, "${ }", " "); + if (APT::String::Endswith(output, " ") == true) + output.erase(output.length() - 1); + + out << output; +} + /*}}}*/ +// ShowBroken - Debugging aide /*{{{*/ +// --------------------------------------------------------------------- +/* This prints out the names of all the packages that are broken along + with the name of each broken dependency and a quite version + description. + + The output looks like: + The following packages have unmet dependencies: + exim: Depends: libc6 (>= 2.1.94) but 2.1.3-10 is to be installed + Depends: libldap2 (>= 2.0.2-2) but it is not going to be installed + Depends: libsasl7 but it is not going to be installed + */ +static void ShowBrokenPackage(ostream &out, pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg, bool const Now) +{ + if (Now == true) + { + if ((*Cache)[Pkg].NowBroken() == false) + return; + } + else + { + if ((*Cache)[Pkg].InstBroken() == false) + return; + } + + // Print out each package and the failed dependencies + out << " " << Pkg.FullName(true) << " :"; + unsigned const Indent = Pkg.FullName(true).size() + 3; + bool First = true; + pkgCache::VerIterator Ver; + + if (Now == true) + Ver = Pkg.CurrentVer(); + else + Ver = (*Cache)[Pkg].InstVerIter(*Cache); + + if (Ver.end() == true) + { + out << endl; + return; + } + + for (pkgCache::DepIterator D = Ver.DependsList(); D.end() == false;) + { + // Compute a single dependency element (glob or) + pkgCache::DepIterator Start; + pkgCache::DepIterator End; + D.GlobOr(Start,End); // advances D + + if ((*Cache)->IsImportantDep(End) == false) + continue; + + if (Now == true) + { + if (((*Cache)[End] & pkgDepCache::DepGNow) == pkgDepCache::DepGNow) + continue; + } + else + { + if (((*Cache)[End] & pkgDepCache::DepGInstall) == pkgDepCache::DepGInstall) + continue; + } + + bool FirstOr = true; + while (1) + { + if (First == false) + for (unsigned J = 0; J != Indent; J++) + out << ' '; + First = false; + + if (FirstOr == false) + { + for (unsigned J = 0; J != strlen(End.DepType()) + 3; J++) + out << ' '; + } + else + out << ' ' << End.DepType() << ": "; + FirstOr = false; + + out << Start.TargetPkg().FullName(true); + + // Show a quick summary of the version requirements + if (Start.TargetVer() != 0) + out << " (" << Start.CompType() << " " << Start.TargetVer() << ")"; + + /* Show a summary of the target package if possible. In the case + of virtual packages we show nothing */ + pkgCache::PkgIterator Targ = Start.TargetPkg(); + if (Targ->ProvidesList == 0) + { + out << ' '; + pkgCache::VerIterator Ver = (*Cache)[Targ].InstVerIter(*Cache); + if (Now == true) + Ver = Targ.CurrentVer(); + + if (Ver.end() == false) + { + if (Now == true) + ioprintf(out,_("but %s is installed"),Ver.VerStr()); + else + ioprintf(out,_("but %s is to be installed"),Ver.VerStr()); + } + else + { + if ((*Cache)[Targ].CandidateVerIter(*Cache).end() == true) + { + if (Targ->ProvidesList == 0) + out << _("but it is not installable"); + else + out << _("but it is a virtual package"); + } + else + out << (Now?_("but it is not installed"):_("but it is not going to be installed")); + } + } + + if (Start != End) + out << _(" or"); + out << endl; + + if (Start == End) + break; + ++Start; + } + } +} +void ShowBroken(ostream &out, CacheFile &Cache, bool const Now) +{ + if (Cache->BrokenCount() == 0) + return; + + out << _("The following packages have unmet dependencies:") << endl; + SortedPackageUniverse Universe(Cache); + for (auto const &Pkg: Universe) + ShowBrokenPackage(out, &Cache, Pkg, Now); +} +void ShowBroken(ostream &out, pkgCacheFile &Cache, bool const Now) +{ + if (Cache->BrokenCount() == 0) + return; + + out << _("The following packages have unmet dependencies:") << endl; + APT::PackageUniverse Universe(Cache); + for (auto const &Pkg: Universe) + ShowBrokenPackage(out, &Cache, Pkg, Now); +} + /*}}}*/ +// ShowNew - Show packages to newly install /*{{{*/ +void ShowNew(ostream &out,CacheFile &Cache) +{ + SortedPackageUniverse Universe(Cache); + ShowList(out,_("The following NEW packages will be installed:"), Universe, + [&Cache](pkgCache::PkgIterator const &Pkg) { return Cache[Pkg].NewInstall(); }, + &PrettyFullName, + CandidateVersion(&Cache)); +} + /*}}}*/ +// ShowDel - Show packages to delete /*{{{*/ +void ShowDel(ostream &out,CacheFile &Cache) +{ + SortedPackageUniverse Universe(Cache); + ShowList(out,_("The following packages will be REMOVED:"), Universe, + [&Cache](pkgCache::PkgIterator const &Pkg) { return Cache[Pkg].Delete(); }, + [&Cache](pkgCache::PkgIterator const &Pkg) + { + std::string str = PrettyFullName(Pkg); + if (((*Cache)[Pkg].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge) + str.append("*"); + return str; + }, + CandidateVersion(&Cache)); +} + /*}}}*/ +// ShowKept - Show kept packages /*{{{*/ +void ShowKept(ostream &out,CacheFile &Cache) +{ + SortedPackageUniverse Universe(Cache); + ShowList(out,_("The following packages have been kept back:"), Universe, + [&Cache](pkgCache::PkgIterator const &Pkg) + { + return Cache[Pkg].Upgrade() == false && + Cache[Pkg].Upgradable() == true && + Pkg->CurrentVer != 0 && + Cache[Pkg].Delete() == false; + }, + &PrettyFullName, + CurrentToCandidateVersion(&Cache)); +} + /*}}}*/ +// ShowUpgraded - Show upgraded packages /*{{{*/ +void ShowUpgraded(ostream &out,CacheFile &Cache) +{ + SortedPackageUniverse Universe(Cache); + ShowList(out,_("The following packages will be upgraded:"), Universe, + [&Cache](pkgCache::PkgIterator const &Pkg) + { + return Cache[Pkg].Upgrade() == true && Cache[Pkg].NewInstall() == false; + }, + &PrettyFullName, + CurrentToCandidateVersion(&Cache)); +} + /*}}}*/ +// ShowDowngraded - Show downgraded packages /*{{{*/ +// --------------------------------------------------------------------- +/* */ +bool ShowDowngraded(ostream &out,CacheFile &Cache) +{ + SortedPackageUniverse Universe(Cache); + return ShowList(out,_("The following packages will be DOWNGRADED:"), Universe, + [&Cache](pkgCache::PkgIterator const &Pkg) + { + return Cache[Pkg].Downgrade() == true && Cache[Pkg].NewInstall() == false; + }, + &PrettyFullName, + CurrentToCandidateVersion(&Cache)); +} + /*}}}*/ +// ShowHold - Show held but changed packages /*{{{*/ +bool ShowHold(ostream &out,CacheFile &Cache) +{ + SortedPackageUniverse Universe(Cache); + return ShowList(out,_("The following held packages will be changed:"), Universe, + [&Cache](pkgCache::PkgIterator const &Pkg) + { + return Pkg->SelectedState == pkgCache::State::Hold && + Cache[Pkg].InstallVer != (pkgCache::Version *)Pkg.CurrentVer(); + }, + &PrettyFullName, + CurrentToCandidateVersion(&Cache)); +} + /*}}}*/ +// ShowEssential - Show an essential package warning /*{{{*/ +// --------------------------------------------------------------------- +/* This prints out a warning message that is not to be ignored. It shows + all essential packages and their dependents that are to be removed. + It is insanely risky to remove the dependents of an essential package! */ +struct APT_HIDDEN PrettyFullNameWithDue { + std::map<unsigned long long, pkgCache::PkgIterator> due; + PrettyFullNameWithDue() {} + std::string operator() (pkgCache::PkgIterator const &Pkg) + { + std::string const A = PrettyFullName(Pkg); + std::map<unsigned long long, pkgCache::PkgIterator>::const_iterator d = due.find(Pkg->ID); + if (d == due.end()) + return A; + + std::string const B = PrettyFullName(d->second); + std::ostringstream outstr; + ioprintf(outstr, _("%s (due to %s)"), A.c_str(), B.c_str()); + return outstr.str(); + } +}; +bool ShowEssential(ostream &out,CacheFile &Cache) +{ + std::vector<bool> Added(Cache->Head().PackageCount, false); + APT::PackageDeque pkglist; + PrettyFullNameWithDue withdue; + + SortedPackageUniverse Universe(Cache); + for (pkgCache::PkgIterator const &I: Universe) + { + if ((I->Flags & pkgCache::Flag::Essential) != pkgCache::Flag::Essential && + (I->Flags & pkgCache::Flag::Important) != pkgCache::Flag::Important) + continue; + + // The essential package is being removed + if (Cache[I].Delete() == false) + continue; + + if (Added[I->ID] == false) + { + Added[I->ID] = true; + pkglist.insert(I); + } + + if (I->CurrentVer == 0) + continue; + + // Print out any essential package depenendents that are to be removed + for (pkgCache::DepIterator D = I.CurrentVer().DependsList(); D.end() == false; ++D) + { + // Skip everything but depends + if (D->Type != pkgCache::Dep::PreDepends && + D->Type != pkgCache::Dep::Depends) + continue; + + pkgCache::PkgIterator P = D.SmartTargetPkg(); + if (Cache[P].Delete() == true) + { + if (Added[P->ID] == true) + continue; + Added[P->ID] = true; + + pkglist.insert(P); + withdue.due[P->ID] = I; + } + } + } + return ShowList(out,_("WARNING: The following essential packages will be removed.\n" + "This should NOT be done unless you know exactly what you are doing!"), + pkglist, &AlwaysTrue, withdue, &EmptyString); +} + /*}}}*/ +// Stats - Show some statistics /*{{{*/ +// --------------------------------------------------------------------- +/* */ +void Stats(ostream &out,pkgDepCache &Dep) +{ + unsigned long Upgrade = 0; + unsigned long Downgrade = 0; + unsigned long Install = 0; + unsigned long ReInstall = 0; + for (pkgCache::PkgIterator I = Dep.PkgBegin(); I.end() == false; ++I) + { + if (Dep[I].NewInstall() == true) + Install++; + else + { + if (Dep[I].Upgrade() == true) + Upgrade++; + else + if (Dep[I].Downgrade() == true) + Downgrade++; + } + + if (Dep[I].Delete() == false && (Dep[I].iFlags & pkgDepCache::ReInstall) == pkgDepCache::ReInstall) + ReInstall++; + } + + ioprintf(out,_("%lu upgraded, %lu newly installed, "), + Upgrade,Install); + + if (ReInstall != 0) + ioprintf(out,_("%lu reinstalled, "),ReInstall); + if (Downgrade != 0) + ioprintf(out,_("%lu downgraded, "),Downgrade); + + ioprintf(out,_("%lu to remove and %lu not upgraded.\n"), + Dep.DelCount(),Dep.KeepCount()); + + if (Dep.BadCount() != 0) + ioprintf(out,_("%lu not fully installed or removed.\n"), + Dep.BadCount()); +} + /*}}}*/ +// YnPrompt - Yes No Prompt. /*{{{*/ +// --------------------------------------------------------------------- +/* Returns true on a Yes.*/ +bool YnPrompt(char const * const Question, bool const Default, bool const ShowGlobalErrors, std::ostream &c1o, std::ostream &c2o) +{ + auto const AssumeYes = _config->FindB("APT::Get::Assume-Yes",false); + auto const AssumeNo = _config->FindB("APT::Get::Assume-No",false); + // if we ask interactively, show warnings/notices before the question + if (ShowGlobalErrors == true && AssumeYes == false && AssumeNo == false) + { + if (_config->FindI("quiet",0) > 0) + _error->DumpErrors(c2o); + else + _error->DumpErrors(c2o, GlobalError::DEBUG); + } + + c2o << Question << std::flush; + + /* nl_langinfo does not support LANGUAGE setting, so we unset it here + to have the help-message (hopefully) match the expected characters */ + char * language = getenv("LANGUAGE"); + if (language != NULL) + language = strdup(language); + if (language != NULL) + unsetenv("LANGUAGE"); + + if (Default == true) + // TRANSLATOR: Yes/No question help-text: defaulting to Y[es] + // e.g. "Do you want to continue? [Y/n] " + // The user has to answer with an input matching the + // YESEXPR/NOEXPR defined in your l10n. + c2o << " " << _("[Y/n]") << " " << std::flush; + else + // TRANSLATOR: Yes/No question help-text: defaulting to N[o] + // e.g. "Should this file be removed? [y/N] " + // The user has to answer with an input matching the + // YESEXPR/NOEXPR defined in your l10n. + c2o << " " << _("[y/N]") << " " << std::flush; + + if (language != NULL) + { + setenv("LANGUAGE", language, 0); + free(language); + } + + if (AssumeYes) + { + // TRANSLATOR: "Yes" answer printed for a yes/no question if --assume-yes is set + c1o << _("Y") << std::endl; + return true; + } + else if (AssumeNo) + { + // TRANSLATOR: "No" answer printed for a yes/no question if --assume-no is set + c1o << _("N") << std::endl; + return false; + } + + char response[1024] = ""; + std::cin.getline(response, sizeof(response)); + + if (!std::cin) + return false; + + if (strlen(response) == 0) + return Default; + + regex_t Pattern; + int Res; + + Res = regcomp(&Pattern, nl_langinfo(YESEXPR), + REG_EXTENDED|REG_ICASE|REG_NOSUB); + + if (Res != 0) { + char Error[300]; + regerror(Res,&Pattern,Error,sizeof(Error)); + return _error->Error(_("Regex compilation error - %s"),Error); + } + + Res = regexec(&Pattern, response, 0, NULL, 0); + if (Res == 0) + return true; + return false; +} +bool YnPrompt(char const * const Question, bool const Default) +{ + return YnPrompt(Question, Default, true, c1out, c2out); +} + /*}}}*/ +// AnalPrompt - Annoying Yes No Prompt. /*{{{*/ +// --------------------------------------------------------------------- +/* Returns true on a Yes.*/ +bool AnalPrompt(std::string const &Question, const char *Text) +{ + if (_config->FindI("quiet",0) > 0) + _error->DumpErrors(c2out); + else + _error->DumpErrors(c2out, GlobalError::DEBUG); + c2out << Question << std::flush; + + char Buf[1024]; + std::cin.getline(Buf,sizeof(Buf)); + if (strcmp(Buf,Text) == 0) + return true; + return false; +} + /*}}}*/ + +std::string PrettyFullName(pkgCache::PkgIterator const &Pkg) +{ + return Pkg.FullName(true); +} +std::string CandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg) +{ + return (*Cache)[Pkg].CandVersion; +} +std::function<std::string(pkgCache::PkgIterator const &)> CandidateVersion(pkgCacheFile * const Cache) +{ + return std::bind(static_cast<std::string(*)(pkgCacheFile * const, pkgCache::PkgIterator const&)>(&CandidateVersion), Cache, std::placeholders::_1); +} +std::string CurrentToCandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg) +{ + return std::string((*Cache)[Pkg].CurVersion) + " => " + (*Cache)[Pkg].CandVersion; +} +std::function<std::string(pkgCache::PkgIterator const &)> CurrentToCandidateVersion(pkgCacheFile * const Cache) +{ + return std::bind(static_cast<std::string(*)(pkgCacheFile * const, pkgCache::PkgIterator const&)>(&CurrentToCandidateVersion), Cache, std::placeholders::_1); +} +bool AlwaysTrue(pkgCache::PkgIterator const &) +{ + return true; +} +std::string EmptyString(pkgCache::PkgIterator const &) +{ + return std::string(); +} + |