#ifndef APT_PRIVATE_OUTPUT_H #define APT_PRIVATE_OUTPUT_H #include <apt-pkg/configuration.h> #include <apt-pkg/pkgcache.h> #include <apt-pkg/macros.h> #include <functional> #include <fstream> #include <string> #include <iostream> // forward declaration class pkgCacheFile; class CacheFile; class pkgDepCache; class pkgRecords; APT_PUBLIC extern std::ostream c0out; APT_PUBLIC extern std::ostream c1out; APT_PUBLIC extern std::ostream c2out; APT_PUBLIC extern std::ofstream devnull; APT_PUBLIC extern unsigned int ScreenWidth; APT_PUBLIC bool InitOutput(std::basic_streambuf<char> * const out = std::cout.rdbuf()); void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::VerIterator const &V, std::ostream &out, std::string const &format); // helper to describe global state APT_PUBLIC void ShowBroken(std::ostream &out, CacheFile &Cache, bool const Now); APT_PUBLIC void ShowBroken(std::ostream &out, pkgCacheFile &Cache, bool const Now); template<class Container, class PredicateC, class DisplayP, class DisplayV> bool ShowList(std::ostream &out, std::string const &Title, Container const &cont, PredicateC Predicate, DisplayP PkgDisplay, DisplayV VerboseDisplay) { size_t const ScreenWidth = (::ScreenWidth > 3) ? ::ScreenWidth - 3 : 0; int ScreenUsed = 0; bool const ShowVersions = _config->FindB("APT::Get::Show-Versions", false); bool printedTitle = false; for (auto const &Pkg: cont) { if (Predicate(Pkg) == false) continue; if (printedTitle == false) { out << Title; printedTitle = true; } if (ShowVersions == true) { out << std::endl << " " << PkgDisplay(Pkg); std::string const verbose = VerboseDisplay(Pkg); if (verbose.empty() == false) out << " (" << verbose << ")"; } else { std::string const PkgName = PkgDisplay(Pkg); if (ScreenUsed == 0 || (ScreenUsed + PkgName.length()) >= ScreenWidth) { out << std::endl << " "; ScreenUsed = 0; } else if (ScreenUsed != 0) { out << " "; ++ScreenUsed; } out << PkgName; ScreenUsed += PkgName.length(); } } if (printedTitle == true) { out << std::endl; return false; } return true; } void ShowNew(std::ostream &out,CacheFile &Cache); void ShowDel(std::ostream &out,CacheFile &Cache); void ShowKept(std::ostream &out,CacheFile &Cache); void ShowUpgraded(std::ostream &out,CacheFile &Cache); bool ShowDowngraded(std::ostream &out,CacheFile &Cache); bool ShowHold(std::ostream &out,CacheFile &Cache); bool ShowEssential(std::ostream &out,CacheFile &Cache); void Stats(std::ostream &out, pkgDepCache &Dep); // prompting bool YnPrompt(char const * const Question, bool Default=true); bool AnalPrompt(std::string const &Question, const char *Text); std::string PrettyFullName(pkgCache::PkgIterator const &Pkg); std::string CandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg); std::function<std::string(pkgCache::PkgIterator const &)> CandidateVersion(pkgCacheFile * const Cache); std::string CurrentToCandidateVersion(pkgCacheFile * const Cache, pkgCache::PkgIterator const &Pkg); std::function<std::string(pkgCache::PkgIterator const &)> CurrentToCandidateVersion(pkgCacheFile * const Cache); std::string EmptyString(pkgCache::PkgIterator const &); bool AlwaysTrue(pkgCache::PkgIterator const &); #endif