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-rw-r--r--apt-private/private-output.cc782
1 files changed, 782 insertions, 0 deletions
diff --git a/apt-private/private-output.cc b/apt-private/private-output.cc
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+++ b/apt-private/private-output.cc
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+// Include files /*{{{*/
+#include<config.h>
+
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/strutl.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/cachefile.h>
+#include <apt-pkg/pkgrecords.h>
+#include <apt-pkg/policy.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/cacheiterators.h>
+
+#include <apt-private/private-output.h>
+#include <apt-private/private-cachefile.h>
+
+#include <regex.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <iomanip>
+#include <iostream>
+#include <langinfo.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/ioctl.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
+ 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 Default)
+{
+ 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 (AssumeYes == false && AssumeNo == false)
+ {
+ if (_config->FindI("quiet",0) > 0)
+ _error->DumpErrors(c2out);
+ else
+ _error->DumpErrors(c2out, GlobalError::DEBUG);
+ }
+
+ c2out << 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.
+ c2out << " " << _("[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.
+ c2out << " " << _("[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
+ c1out << _("Y") << std::endl;
+ return true;
+ }
+ else if (AssumeNo)
+ {
+ // TRANSLATOR: "No" answer printed for a yes/no question if --assume-no is set
+ c1out << _("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;
+}
+ /*}}}*/
+// 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();
+}
+